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Government regulation needed to insure Detroit steady supply of milk, Monopoly Committee told. Washington, D.C., May 2. Kenneth L. Vardon, President of the United Dairy Workers Union of Detroit, today told the Temporary National Economic Committee that some form of government regulation must be imposed to insure Detroit a steady supply of milk at a just price to the consumer, the distributor, and the farmer. He charged that the practices of George A. Johnson, independent dealer, serving six per cent of the city, were such that they 'are seriously endangering the supply of fluid milk for Detroit.' Vardon said that Johnson shops with various farmers to get the lowest possible prices but refuses to pay prevailing wage standards

Government regulation needed to insure Detroit steady supply of milk, ...

A man sitting at a table with a microphone. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Uncle Sam test brass alloys. Washington D.C. To determine the correct amount of alloys necessary for desired results in the making of castings and other uses, the U.S. Bureau of Standards is conducting daily tests. 600 different portions of the alloy are used at the present time. The tests are made with brass bars which are melted in a high frequency induction furnace and the temperatures are recorded before and during the pouring into the molds. In the photograph, left to right: H.V. Gardner, Lemuel D. Jones, and C.N. Saeger, Chief of the Experimental Foundry at the Bureau

Uncle Sam test brass alloys. Washington D.C. To determine the correct ...

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Device for testing testers. Washington, D.C., May 25. Herbert L. Whittemore, Chief Justice of the Engineering Mechanics Sections, U.S. Bureau of Standards, has been awarded the Edward Longstreth medal for his work in developing this device for testing the machines which in turn test construction materials. The medal is awarded annually by the Franklin Institute, 5/25/37

Device for testing testers. Washington, D.C., May 25. Herbert L. Whitt...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Tire testing machine. Washington, D.C., May 20. Testing wear and tear on tires with this tire testing machine at the Bureau of Standards is W.D. [?] hold, the machine simulates road tests traveling from 20 to 60 mph, the only difference is that the load on the tires is heavier than the normal weight of cars that the tires are made for [...]

Tire testing machine. Washington, D.C., May 20. Testing wear and tear ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Government discovers method to preserve movie film indefinitely. Washington, D.C., July 8. People living in the year 2000 will be able to see and hear today's history in the making through experiments on preserving movie film now being conducted by the National Bureau of Standards. The experts at the bureau recently completed "accelerated aging tests in which films in six months went through the effects of 50 years' storage in a cool dark room. These tests showed that cellulose, or explosive film, would last from 50 to 100 years. The new Safety or Acetate film "may be preserved for longer periods." Unofficially, the experts put the figure at several hundred years. The following set of pictures were made at the Bureau of Standards and the National Archives Building. (1) Accelerated aging, The stability of the films is tested similarly to paper. They are heated in this oven at 100 [degrees] C and tested for loss of flexibility and for evidences of chemical decomposition. Arnold Soorne, of the Bureau Staff, is picture making the test

Government discovers method to preserve movie film indefinitely. Washi...

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Pill-Box Fort finished in four hours. Washington, D.C., Aug. 25. Something new in speedy-built forts was built on the grounds of the Bureau of Standards today in four hours. Karl P. Billner, Swedish Inventor, supervised the building of the pill box which was done by his new invention as the vacuum concrete invention. Mr. Billner, is looking over the finished product, 8/25/38

Pill-Box Fort finished in four hours. Washington, D.C., Aug. 25. Somet...

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Final check, weather device. Washington, D.C., Sept. 13. L.L. Stockman, also of the Bureau of Standards, Radium Division, uses a wave meter to check the radiometeorograph before attaching it to the parachute and the balloon. When the inflated bag breaks, which it usually does after several hours flying, the instrument is parachuted to the ground. Many times the instrument is found and returned to the bureau. The radiometeorograph contains two radio tubes, a miniature dry cell battery and devices which record and send the weather signals which, in turn, are recorded on a chronograph in Dr. Astin's bood [?] radio room.

Final check, weather device. Washington, D.C., Sept. 13. L.L. Stockman...

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Machine performs half a day's manual labor in 5 minutes. Washington, D.C., Dec. 22. H.J. Keegan of the U.S. Bureau of Standards, using the spectrophotometer to determine the different colors in a piece of cloth. It formerly took a man a half a day to make this spectrum analysis but now the machine does it in five minutes. The machine measures the % of light transmitted or reflected at various wave lengths in the visible spectrum

Machine performs half a day's manual labor in 5 minutes. Washington, D...

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Substitute fuels tested. Emmet L. Reed, laboratory assistant at the U.S. Bureau of Standards, uses a special microscope to measure the degree of wear which substitute gasoline has produced on an automobile engine cylinder

Substitute fuels tested. Emmet L. Reed, laboratory assistant at the U....

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Substitute fuels tested. Conducting an experiment to determine whether engine wear is increased by the use of fuel substitutes, Emmet L. Reed of Washington, D.C. makes an identification mark on the cylinder of an automobile engine. The rate of the mark's disappearance will determine the degree of wear. This is part of the "ersatz" fuel experiments which are being conducted at the U.S. Bureau of Standards

Substitute fuels tested. Conducting an experiment to determine whether...

Picryl description: Public domain photograph of the 1930s - 1940s, woman, female portrait, United States, free to use, no copyright restrictions.

Uncle Sam makes own glass. Washington, D.C. Aug. 24. All optical glass used by the United States Navy is manufactured and finished by the Bureau of Standards in Washington. L. Maxwell, of the Glass Section, Bureau of Standards, is shown cutting molten glass into the mold. He uses ordinary tailor's shears in cutting the hot substance which is about as soft as hot molasses candy

Uncle Sam makes own glass. Washington, D.C. Aug. 24. All optical glass...

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U.S. experts test weather device. Washington, D.C., Sept. 13. Scientists of the National Bureau of Standards today conducted a test of the new radiometeorograph, a device attached to parachute and balloon and sent into the skies to radio back signals giving the pressure, temperature and humidity of the upper air. Preparing the balloon for the ascension are Dr. L.V. Astin, (left) of the Bureau's Electrical Division, and Dr. L.F. Curtiss, head of the Radium Division. The balloon carries the instrument as high as 50,000 or 60,000 feet. 9 to 11 miles high. Today's test was conducted for the U.S. Weather Bureau. 9/13/37

U.S. experts test weather device. Washington, D.C., Sept. 13. Scientis...

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Fulmer, Bureau of Standards - Glass negative photogrpah. Public domain.

Fulmer, Bureau of Standards - Glass negative photogrpah. Public domain...

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Bureau of Standards making extensive tests of glass building blocks. Washington, D.C., June 20. Hollow glass building blocks are being used more and more extensively for structural purposes when both greater light distribution and air conditioning are required. Extensive tests to determine the strength of glass block walls and their resistance to wind pressure and moisture penetration. A.N. Finn, Chief of the glass section, is inspecting some 8 x 4 feet panels before they are tested, 6/20/38

Bureau of Standards making extensive tests of glass building blocks. W...

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"You pay your money and make your choice" Washington, D.C., May 31. A feature of the twenty-eighth National Conference on Weights and Measures which opened in Washington today was display of the many parking meters now in use throughout the country. they range from 1cent to 5cents allowing the parker 20 minutes to half an hour. 49,500 meters are now in use in 56 cities. R.E. Gould, chief of the time section of the National Bureau of Standards, is pictured examining the display, 5/31/38

"You pay your money and make your choice" Washington, D.C., May 31. A ...

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Test electric light bulbs for Uncle Sam. Washington, D.C., March 21. Purchasing on an average of 4,000,000 electric light bulbs annually, Uncle Sam is probably one of the largest users of light in the country. The National Bureau of Standards sees that the government gets value received in purchases by continually testing the incandescent lamps to determine their life and the amount of light they give. Using a special machine designed by the Bureau, Louis Barbrow is shown measuring the amount of light given by a lamp, 3/21/38

Test electric light bulbs for Uncle Sam. Washington, D.C., March 21. P...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Baseballs undergo outdoor tryout. Washington, D.C., Mar. 7. The government's test for velocity of the American and National League baseballs went out in the open air today, having learned all about the traits of the pellets within the laboratory. The Bureau of Standards transported it's paraphernalia to Griffith Stadium to let the baseballs be shot from their air gun and fly where they may. W.C. Mock, of the Bureau of Standards is shown making the test, 3/7/38

Baseballs undergo outdoor tryout. Washington, D.C., Mar. 7. The govern...

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U.S. testing liveliness of baseballs. Washington, D.C., Feb. 21. Experiments to test the liveliness of American, National and International League baseballs began at the National Bureau of Standards today. Edward B. Eynon, (left) Secretary of the Washington Baseball Club, and Dr. Hugh L. Dryden, Chief of the Mechanics and Sound Division, who designed the unique machine used in the tests, are discussing the first ball to be hit by the Government Fence Buster, 2/21/38

U.S. testing liveliness of baseballs. Washington, D.C., Feb. 21. Exper...

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Joint Com., Bu. Chemistry, Dept. of Ag., Standards for ice cream, meats, jelly, jam, 8/19/24

Joint Com., Bu. Chemistry, Dept. of Ag., Standards for ice cream, meat...

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Government scientist cools water to -6ʺ without freezing it. Washington, D.C., Aug. 9. The belief that water freezes at 32 degrees fahrenheit has been blasted by Dr. N. Ernest Dorsey, scientist of the National Bureau of Standards. Neither does all water freeze at the same temperature. These discoveries have been made by Dr. Dorsey after experimenting with 37 specimens of water taken from lakes, canals, and other sources. He has cooled water until it was minus 6 degrees fahrenheit that is, 38 degrees colder that the so called freezing point of 32 degrees. Yet it remained liquid, 8/9/38

Government scientist cools water to -6ʺ without freezing it. Washingto...

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Uncle Sam makes own glass. Washington, D.C. Aug. 24. All optical glass used by the United States Navy is manufactured and finished by the Bureau of Standards in Washington. L. Maxwell, of the Glass Section, Bureau of Standards, is shown cutting molten glass into the mold. He uses ordinary tailor's shears in cutting the hot substance which is about as soft as hot molasses candy

Uncle Sam makes own glass. Washington, D.C. Aug. 24. All optical glass...

A black and white photo of a man working in a factory, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. Date based on date of negatives in same... More

Traffic paint undergoes rigid tests. Washington, D.C., April 16. At the U.S. Bureau of Standards, J.E. Keefauver of the Bureau has been running tests on the paint that is placed on safety zones and streets to determine which has the best wearing activity. The discs [?] are painted with the traffic paint the chain-driven wheel of eraser rubber (to imitate an auto tire) slowly wears the paint away. The brushes are to keep the disc and tire clean. These tests were made at the requests of the traffic bureaus, 4/16/1937

Traffic paint undergoes rigid tests. Washington, D.C., April 16. At th...

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Rating gasolines at the Bureau of Standards. Washington, D.C., April 17. F.R. Carter of the U.S. Bureau of Standards is shown adjusting the mixture of gasoline to find out the rating in octane numbers of gasolines. The three carbureter shown in the foreground are each filled with a gasoline tow of which with a known octane rating and the third is filled with the sample to be tested, this machine has a variable compression ratio and can be changed while in motion

Rating gasolines at the Bureau of Standards. Washington, D.C., April 1...

Picryl description: Public domain photograph of a machine, industrial equipment, engine, generator, free to use, no copyright restrictions.

Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square precision gage is being compared for length with the Bureau's standard 4 inch, which is rectangular in shape. These gages are tested against the master gages which the different auto manufacturers check their measuring devices so that the parts of the cars separately made can be, when assembled, fitted perfectly. The standard gage and the master gage are shwon being compared in the interferometer, 5/28/37

Interferometer tests standard gages for automobile manufacturers. Wash...

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Precise measurements. Washington, D.C. June 17. W.H. Goss, of the National Bureau of Standards, is shown making very precise measurements of the electrical conductance of standard solutions, which are the basis of industrial control of boiled water, steam condensates, beet sugar refining, metal cleaning baths, and of various other technical operations. 6/17/37

Precise measurements. Washington, D.C. June 17. W.H. Goss, of the Nati...

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U.S. Capitol, Light Standards, Capitol Grounds, East of Capitol, Washington, District of Columbia, DC

U.S. Capitol, Light Standards, Capitol Grounds, East of Capitol, Washi...

Survey number: HABS DC-77 The original U.S. Capitol building, known as the "Old Capitol," was a small brick building that was completed in 1800. It served as the Capitol building until the current building wa... More

Joint Com., Bu. Chemistry, Dept. of Ag. ice cream, meats, jellies, jams standards, 8/19/24

Joint Com., Bu. Chemistry, Dept. of Ag. ice cream, meats, jellies, jam...

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Bureau of Standards. Accuracy reading of thermometer

Bureau of Standards. Accuracy reading of thermometer

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Sees that Uncle Sam gets value in purchases. Washington, D.C., Sept. 28. Miss Mary L. Rollins is responsible for seeing that the government gets value received for every dollar expended for paper and materials containing textile fibers. As fiber technologist of the National Bureau of Standards, she take a microscopic test of typewriter paper, memo pads, envelopes, police uniforms, chair cushions, flags, etc. to determine whether the articles are delivered are represented when purchased, 9/28/37

Sees that Uncle Sam gets value in purchases. Washington, D.C., Sept. 2...

A black and white photo of a woman looking through a microscope. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Bending steel girders. Washington, D.C., Sept. 23. Officials of the steel industry and the U.S. Bureau of Standards inspect one of the large riveted steel frame knees that were placed thru the test ... U.S. Bureau today. This frame designed to withstand 68,000 lbs carried a maximum load of 168,000 lbs before it showed signs of weakening. Photo shows left to right inspecting the beam after the test: Dr. A.H. Starng of the Bureau of Standards, Everett Chapman, President of the Lukeneeld Inc. of Coatesville, Pennsylvania, and F.H. Frankland, Chief Engineer of the American Institute of Steel Construction, New York City, N.Y., 92337

Bending steel girders. Washington, D.C., Sept. 23. Officials of the st...

A group of men standing around a table, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. General ... More

How much wear will your carpet stand? Washington, D.C., March 19. A machine that produces the bending, slipping, twisting, and compression of the pile that takes place when a carpet is walked upon, has been developed by the National Bureau of Standards to test the durability of carpets. H.F. Schiefer, physicist at the Bureau, is shown in the photograph, 3/19/38

How much wear will your carpet stand? Washington, D.C., March 19. A ma...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Concentrated wealth on increase. Washington D.C. Concentration of wealth in the control of a few corporations has increased since 1931. Dr. Charles A. Beard, (right) told the Senate Judiciary subcommittee today. Dr. Beard, noted political scientist and economist, was testifying in defense of the O'Mahoney Corporation Licensing Bill, which, if passed, will require corporations dealing in interstate commerce to comply with specified standards to aqcuire a federal license. Senator Joseph O'Mahoney, author of the bill and Chairman of the Committee, is on the left

Concentrated wealth on increase. Washington D.C. Concentration of weal...

Two men in suits standing next to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Bureau of Standards puts ruge insulator through pressure tests. Washington, D.C., Nov. 30. H.L. Whitemore, (left), chief of the Engineering Mechanics section, National Bureau of Standards, and Dr. A.H. Stand, make a final check of the huge 1600[?] pound porcelain insulator before subjecting it to 2,180,000 pounds pressure in the Bureau's hydraulic jack. The insulator, one of the few of its size in existence, will serve as a base for a 640 foot mast at Radio Station WGY, Schenectady, New York. One of the insulators successfully stood the pressure to 800,000 pounds while the second broke when the pressure was boosted to 2,180,000 pounds. The hydraulic jack is capable of exerting 10,000,000 pounds pressure

Bureau of Standards puts ruge insulator through pressure tests. Washin...

Public domain photograph of New York building, free to use, no copyright restrictions image - Picryl description

Fighting highway deaths, Wash. D.C. This photograph shows Richard S. Dill, a worker in the U.S. Bureau of Standards, tabulating the efficiency of various kinds of brake linings as the government attempts to determine the best for use on its vehicles. The automobile industry is watching these tests carefully as a possible indication of the kind of brake lining to use to reduce the number of deaths on highways, which numbered 33,980 in 1934, 10/4/35

Fighting highway deaths, Wash. D.C. This photograph shows Richard S. D...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Interesting job with Uncle Sam. Washington, D.C., Oct. 13. One volt after another is all in the day's work for Mrs. L.H. Brickwedde, who is a battery expert for the National Bureau of Standards. Using a potentiometer - or in other words, a standard cell comparator - Miss Brickwedde is shown calibrating standard cells in terms of priority standards of the electro motive force. 10/13/37

Interesting job with Uncle Sam. Washington, D.C., Oct. 13. One volt af...

A black and white photo of a woman in a lab. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Pill-Box Fort built in four hours. Washington, D.C., Aug. 25. Something new in speedy-built forts was built on the grounds of the Bureau of Standards today in four hours. Karl P. Billner, Swedish Inventor, supervised the building of the pill box which was done by his new invention as the vacuum concrete invention. Today's demonstration was to show a new and more efficient method of construction for defense purposes under emergencies, 8/25/38

Pill-Box Fort built in four hours. Washington, D.C., Aug. 25. Somethin...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Washington, D.C. High school students who work as nurse's aides at emergency hospital learning to make a bed according to hospital standards

Washington, D.C. High school students who work as nurse's aides at eme...

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And now a beer meter. Washington, D.C., May 1. To aid Uncle Same in collecting the tax on the millions of barrels of beer brewed in this country every year, the National Bureau of Standards has designed a master beer meter for use of the alcohol unit of the Bureau of Internal Revenue, U.S. Treasury. Government inspectors employ this master meter in checking the accuracy of the brewery beer meter to determine the volume of beer brewed. In the photograph the large tank receives the liquid [after passing] thru the meter where it is weighed to get [the] true volume. Carl F. Stoneburner is reading [...]

And now a beer meter. Washington, D.C., May 1. To aid Uncle Same in co...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

National Archives. Washington, D.C., Nov. 22. In the powerful press, the sheets of acetate, under heat and pressure 'melt' into the pores of the paper and adhere to each other as well. One additional advantage of this process is that, after being pressed with the sheets of cellulose acetate, the paper is thinner and takes up less room than it did originally. The result is a sheet of paper and acetate which comes off the polished metal plates as a single sheet. Tests for the aging of this material made by the Bureau of Standards in Washington have shown that this treatment of the paper, called laminating is as permanent as it is possible to make any record of paper

National Archives. Washington, D.C., Nov. 22. In the powerful press, t...

Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description

Photoelectric ray to determine flying ceiling. Washington, D.C., June 15. To permit a ground observer to determine at what height flying is safe during days of fog and heavy overcast, Miss Elizabeth M. Zandonini, of the Radio Section staff of the Bureau of Standards, is shown with the balloon transmitting equipment. A photoelectric cell measuring light brightness is used to control the pitch of the radio signal transmitted from the balloon as it ascends. A graphical frequency recorder plots the pitch and hence [...] a measure of the light brightness as a function [...] height. The experiments are carried on for the U.S. [...]

Photoelectric ray to determine flying ceiling. Washington, D.C., June ...

A black and white photo of a woman putting something in a box. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Bureau of Standards. Aerial view of Bureau of Standards

Bureau of Standards. Aerial view of Bureau of Standards

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Bureau of Standards. Cone mixer used for mixing standard samples for chemical analysis

Bureau of Standards. Cone mixer used for mixing standard samples for c...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Bureau of Standards. Main building of Bureau of Standards II

Bureau of Standards. Main building of Bureau of Standards II

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Wash. D.C. Standards Bureau brake test. Richard S. Dill of the U.S. Bureau of Standards is examining a portion of brake lining after being subjected to a test and comparing it with a new piece. 10/4/35

Wash. D.C. Standards Bureau brake test. Richard S. Dill of the U.S. Bu...

Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description

Flame propogation in gas engines photographed. Washington, D.C., Aug. 26. A study of the mechanism of the flame propogation in the cylinder of a internal combustion engine is being made at the U.S. Bureau of Standards for the National Advisory Committee for Aeronautics. A secial bomb made of steel, shown in the foreground, and designed to withstand pressures up to 500 lbs. to the square inch is used to show the progress of the flame and the rise in pressure which may be recorded photographically during the gas explosions under carefully controlled conditions. The camera, where the recordings are made, is in front of Dr. Ernest F. Flock of the Bureau of Standards, carries its film on a drum which may be revolved up to 4,000 revolutions per minute, this camera also records a neon light flashing at a thousandth of a second. The independent effects of pressure, temperature and charge composition upon flame speed and explosion ratio may be made with this equipment, 82637

Flame propogation in gas engines photographed. Washington, D.C., Aug. ...

A man working on a machine in a factory, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. General... More

U.S. Capitol, Light Standards, Capitol Grounds, East of Capitol, Washington, District of Columbia, DC

U.S. Capitol, Light Standards, Capitol Grounds, East of Capitol, Washi...

Survey number: HABS DC-77 The original U.S. Capitol building, known as the "Old Capitol," was a small brick building that was completed in 1800. It served as the Capitol building until the current building wa... More

Labor Secretary receives silicosis report. Washington D.C. The second National Silicosis Conference in a report to Secretary of Labor Perkins today, recommended enactment of X state and federal laws for protection of 1,000,000 Miners subjected to dangers of silica dust. The conference also reported it was unanimous in recommending compulsory insurance coverage for silicosis in the compensation acts of all states. In the photograph, left to right: (seated) Verne A. Zimmer, Director of Division of Standards; Secretary Perkins; and Dr. R.R. Sayers, U.S. Public Health Service, in charge of Division of Industrial Hygiene. Standing left to right: W.P. Ahearn, Executive Secretary, National Sand and Gravel Association; L. Metcalfe Walling, Commissioner of Labor of Rhode Island; and Warren A. Cook, Chief Engineer, Department of Health Hartford Conn.

Labor Secretary receives silicosis report. Washington D.C. The second ...

A group of men sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Bureau of Standards. Aerial view of Bureau of Standards

Bureau of Standards. Aerial view of Bureau of Standards

Public domain aerial photograph, no copyright restrictions image - Picryl description Public domain photograph of historic place in Washington DC, free to use, no copyright restrictions image - Picryl description

Bureau of Standards. Aerial view of Bureau of Standards

Bureau of Standards. Aerial view of Bureau of Standards

Public domain aerial photograph, no copyright restrictions image - Picryl description Public domain photograph of historic place in Washington DC, free to use, no copyright restrictions image - Picryl description

Testing strength of glass panels. Washington, D.C., June 21. With glass blocks being used more and more these days in the construction [of] buildings, The National Bureau of Standards is conducting extensive tests to determine how much wind pressure the panels will stand. So far the panels have resisted 633 pounds wind load. Pictured conducting the tests are, left to right: Dr. C.H. Hahner, R.C. Carter, and A.S. Endler, all of the Bureau, 6/21/38

Testing strength of glass panels. Washington, D.C., June 21. With glas...

Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description

New machine to test brake linings designed by Bureau of Standards. Washington, D.C., March 16. A new machine, both in design and operations, has been installed at the National Bureau of Standards for the testing of brake linings. The machine permits the study of brake linings under conditions closely approaching those of actual sevice and yet which can be accurately controlled. It will make less difficult the complex job of revising the Federal Government's specification for auto brake linings. Wil. Holt of the Bureau is shown in the photograph, 3/16/38

New machine to test brake linings designed by Bureau of Standards. Was...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

New method of making pottery. Washington, D.C., June 17. Receiving end of the new electrically heated 45 foot tunnel kiln at the National Bureau of Standards. This kiln makes it possible to fire pottery in as little as 16 hours compared with 2 and 3 days or more in the older types of kilns, picture shows a glazed piece of pottery removed from the kiln while specimens for scientific tests are on the cart ready to go to the physical laboratory, R.F. Geller, of the Bureau of Standards on the left is the designer and builder of the kiln, his is assisted by W.W. Myers, on the right, 6/17/38

New method of making pottery. Washington, D.C., June 17. Receiving end...

Picryl description: Public domain photo of 3d object, pottery, ceramics, free to use, no copyright restrictions image.

Bureau of Standards designs new device for studying water flow through plumbing fixtures. Washington, D.C., March 13. A new type of rate-of-flow meter for studying the rate of variation of flow of water through plumbing fixtures and for use in investigation presenting similar problems has just been designed and built by the U.S. Bureau of Standards with the cooperation of the Plumbing Fixture Manufacturers Research Associateship. Mr. H.M. Eaton, who is in charge of the hydraulics laboratory where the device is installed, is shown in foreground of picture, 3-13-40

Bureau of Standards designs new device for studying water flow through...

Public domain photograph of Industrial building, free to use, no copyright restrictions image - Picryl description

Washington, D.C. Testing substitute gasoline and measuring the degree of wear which it produces on an automobile engine cylinder at the U.S. Bureau of Standards

Washington, D.C. Testing substitute gasoline and measuring the degree ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

Laying of cornerstone of new Physical Laboratory, Bureau of Standards, Washington, D.C.

Laying of cornerstone of new Physical Laboratory, Bureau of Standards,...

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Bureau of Standards. Calibration of clinical thermometers

Bureau of Standards. Calibration of clinical thermometers

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Clerk, Bureau of Standards - Glass negative photogrpah. Public domain.

Clerk, Bureau of Standards - Glass negative photogrpah. Public domain.

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Raleigh Gilchrist, [Bureau of Standards]

Raleigh Gilchrist, [Bureau of Standards]

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Checks railroad signal glasses for government. Washington, D.C., Sept. 29. Red should be read and orange should be orange and never should the colors in railroad signal glasses be so near alike as to confuse a trainman. The Government, through Mrs. Geraldine W. Haupt, Color Expert of the National Bureau of Standards, tests all railroad signal glasses to determine if the color value is true and also to see that they conform to certain specifications. 9/29/37

Checks railroad signal glasses for government. Washington, D.C., Sept....

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Government discovers method to preserve film. (2) Expansion and contraction, like paper and other sheet materials made from cellulose, films expand as they take up moisture and contract as they lose it, and the extent of the change is different in the two directions of them. This may cause some distortion of the image, and therefore is of particular importance where the image must be true to scale, such as in aerial photography. C.O. Pope is shown with a type of expansiveity tester used and which was designed by the Bureau of Standards. Long strips of film are suspended under constant tension in the [cabinet?] in which the humidity is varied by means of [...] solutions. The change in length is indicated [...continuously?] on a scale by means of an optical-level arrangement, 7/8/38

Government discovers method to preserve film. (2) Expansion and contra...

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Bureau of Standards designs mechanical batter to determine liveliness of baseballs. Washington, D.C., Feb. 21. Using a newly designed apparatus, the U.S. Bureau of Standards today began experiments to determine the relative home-run qualities of American, National and International baseballs. In conducting the tests a scientist pulls the trigger of an air gun loaded with a wooden projectile representing the slugger's bat. The projectile strikes a baseball causing it to fly toward a ballistic pendulum. After each of such hits the scientist takes a reading on the pendulum. It tells him how hard the ball hit the pendulum, or whether it was a homerun, a double, [...]st a pop fly. Dr. H.L. Dryden, Chief [...]e Division of Mechanics and Sound, Designed the machine and is supervising the tests. He is [...] right while on the left is Edward B. Eynon, Secretary of the Washington Baseball Club, 2/21/38

Bureau of Standards designs mechanical batter to determine liveliness ...

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Washington, D.C. Testing substitute gasoline and measuring the degree of wear which it produces on an automobile engine cylinder at the U.S. Bureau of Standards

Washington, D.C. Testing substitute gasoline and measuring the degree ...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Bureau of Standards speeds up photomicrography with new apparatus. Washington, D.C., Aug. 18. By means of this new apparatus just designed by the metallurgical divisions of the National Bureau of Standards, it is now possible to make 700 micrographs per working day of the structural effect of corrosion on cross sections of metallic specimans. This new machine uses roll film of 900 negatives at one loading, thus dispensing with the repeated loading and unloading of individual film holders by which method the Bureau was only formerly able to make 12 micrographs per working day. Willard H. Mutohler, one of the designers of the apparatus is hown photographing the corrosion on airplace materials, 8/18/37

Bureau of Standards speeds up photomicrography with new apparatus. Was...

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Bending steel girders. Washington, D.C., Sept. 23. Officials of the steel industry and the U.S. Bureau of Standards inspect one of the large riveted steel frame knees that were placed thru the test [...] U.S. Bureau today. This frame designed to withstand 68,000 lbs carried a maximum load of 168,000 lbs before it showed signs of weakening. Photo shows left to right inspecting the beam after the test: Dr. A.H. Starng of the Bureau of Standards, Everett Chapman, President of the Lukeneeld Inc. of Coatesville, Pennsylvania, and F.H. Frankland, Chief Engineer of the American Institute of Steel Construction, New York City, N.Y., 9/23/37

Bending steel girders. Washington, D.C., Sept. 23. Officials of the st...

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More furs for the modern woman. Washington, D.C., Nov. 2. Dr. Thora M. Plitt, formerly with the Bureau of Standards and now with the Dept. of Agriculture starts research work at the Agriculture Dept. today, because current fashions are demanding more and more furs, despite a diminishing supply of wild life pelts. The fur industry is turning to fur bearing animals raised in captivity. Dr. Plitt, will investigate fur fiber structure and shape, pigment distribution, density, and relative distribution of underfur and guard hairs of such fur animals as silver foxes, minks, martens, and muskrats. She is shown with a sample giving it the once over, 11/2/38

More furs for the modern woman. Washington, D.C., Nov. 2. Dr. Thora M....

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Flame propogation in gas engines photographed. Washington, D.C., Aug. 26. A study of the mechanism of the flame propogation in the cylinder of a internal combustion engine is being made at the U.S. Bureau of Standards for the National Advisory Committee for Aeronautics. A secial bomb made of steel, shown in the foreground, and designed to withstand pressures up to 500 lbs. to the square inch is used to show the progress of the flame and the rise in pressure which may be recorded photographically during the gas explosions under carefully controlled conditions. The camera, where the recordings are made, is in front of Dr. Ernest F. Flock of the Bureau of Standards, carries its film on a drum which may be revolved up to 4,000 revolutions per minute, this camera also records a neon light flashing at a thousandth of a second. The independent effects of pressure, temperature and charge composition upon flame speed and explosion ratio may be made with this equipment, 8/26/37

Flame propogation in gas engines photographed. Washington, D.C., Aug. ...

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Testing airplanes lenses used in map making. Washington, D.C., May 6. Dr. F.E. Washer of the U.S. Bureau of Standards testing the lens for the airplane cameras that are used by the Army and Navy. There are lights in the rear of the columnmeters and exposures are made on the photographic plate in front of the doctor. The lens are tested for distortion, focal length, and definition. This work must be very exacting as a small error would make an error of many miles on the maps made by the aerial cameras, 5/6/1937

Testing airplanes lenses used in map making. Washington, D.C., May 6. ...

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Government experts discover "perpetual" electrical current. Washington, D.C., March 10. Dr. F.B. Silsbee (left) and Dr. F.G. Brickwedge, of the Bureau of Standards, have just concluded experiments which have proved that an electric current, cut off from its original source, will flow eternally round and round a coiled tin wire circuit when the wire is subjected to 450-degree-below-zero temperature. The tests were made in a new effort to understand what electricity really is, 3/10/38

Government experts discover "perpetual" electrical current. Washington...

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Measuring relative humidity by radio. Washington, D.C. June 9. The hair element for measuring relative humidity in radio weather sounding balloons has proved innacurate because of very slow response at the cold temperatures encountered in the upper atmosphere. F.W. Dunmore, Radio Engineer of National Bureau of Standards, has just developed a new device for the U.S.Navy which will overcome this effect and at the same time will not be affected in response by temperature. He is shown in the photograph observing a graph on the recorder being produced by radio signals from an ascending balloon carrying the new device. This is the first record obtained with this new developement and shows a repidity of response much greater than the hair hygrometers Hitherto used. 6/9/37

Measuring relative humidity by radio. Washington, D.C. June 9. The hai...

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Bureau of Standards. Main building of Bureau of Standards II

Bureau of Standards. Main building of Bureau of Standards II

The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.

Bending huge steel girders. Washington, D.C., Sept. 23. At the U.S. Bureau of Standards officials were witnessing the testing of rigid steel frame knees that are used in grade eliminations such as over-passes, under-passes, bridges, etc. This photo shows the girder or knee placed into the huge 600,000 lb. testing machine in preparation for the test. This welded rigid steel frame knee which was designed to withstand 50,000 pounds had a maximum load of 153,600 lbs placed on it before it buckled.

Bending huge steel girders. Washington, D.C., Sept. 23. At the U.S. Bu...

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Rating gasolines at the Bureau of Standards. Washington, D.C., April 17. F.R. Carter of the U.S. Bureau of Standards is shown adjusting the mixture of gasoline to find out the rating in octane numbers of gasolines. The three carbureter shown in the foreground are each filled with a gasoline tow of which with a known octane rating and the third is filled with the sample to be tested, this machine has a variable compression ratio and can be changed while in motion

Rating gasolines at the Bureau of Standards. Washington, D.C., April 1...

A man working on a machine in a factory, Library of Congress Harris and Ewing collection Title from unverified data received with the Harris & Ewing Collection on the negative or negative sleeve. Date (year) b... More

Promoted as new federal food, drug, and cosmetic act goes into effect. Washington, D.C., Aug. 29. Joseph Caliway, Jr., now Chief Chemist of the Eastern Food and Drug Inspection District with headquarters in New York, has been transferred to Washington as Senior Chemist to serve as Technical Assistant and Secretary of the reorganized four standards of four state Food Law Enforcement officials and two members of the Food and Drug Administration, 8/29/38

Promoted as new federal food, drug, and cosmetic act goes into effect....

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U.S. conducts tests to improve acidity standards. Washington, D.C. June 16. At the National Bureau of Standards, Dr. Walter J. Hamer is making very accurate electrometric measurements on acidity standards. They are useful in the practical control of many processes such as electroplating, purification of drinking water, air conditioning, and manufacture of pulp and paper. 61637

U.S. conducts tests to improve acidity standards. Washington, D.C. Jun...

A man standing in front of a machine, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. General in... More

New method of making pottery. Washington, D.C., June 17. Receiving end of the new electrically heated 45 foot tunnel kiln at the National Bureau of Standards. This kiln makes it possible to fire pottery in as little as 16 hours compared with 2 and 3 days or more in the older types of kilns, picture shows a glazed piece of pottery removed from the kiln while specimens for scientific tests are on the cart ready to go to the physical laboratory, R.F. Geller, of the Bureau of Standards on the left is the designer and builder of the kiln, his is assisted by W.W. Myers, on the right, 61738

New method of making pottery. Washington, D.C., June 17. Receiving end...

A black and white photo of a man working in a factory, Library of Congress Harris and Ewing collection Gift; Harris & Ewing, Inc. 1955. General information about the Harris & Ewing Collection is available at h... More

Hosiery testing machine. Washington, D.C., March 23. At the request of the General Federation of Women's Clubs, the U.S. Bureau of Standards has developed a hosiery testing machine. The machine simulates the force acting on a stocking at the knee and garter clasps in use. A survey was made of women's full fashioned silk hosiery from retail stores throughout the U.S. to provide a basis for a performance specification. After a few pulls, a poor stocking will show runs and lose it's shape. C.J. Pope, of the Bureau of Standards is shown with machine, 32338

Hosiery testing machine. Washington, D.C., March 23. At the request of...

A black and white photo of a man working on a machine, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc.... More

Bureau of Standards. Main building of Bureau of Standards I

Bureau of Standards. Main building of Bureau of Standards I

The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.

New quick drying defense huts demonstrated to government officials. Washington, D.C., Aug. 25. By means of a new invention known as the vacuum concrete process, a pill box fort was erected on the grounds of the National Bureau of Standards today in the record time of four hours. The purpose of the demonstration was to show a new and more efficient method of construction for defense purposes under emergencies. K.P. billner (right) inventor of the process, is pictured explaining it to Dr. Lyman Briggs, ([...])Director of the Bureau of Standards, and [..] Monroe Johnson, Assistant Secretary of Commerce

New quick drying defense huts demonstrated to government officials. Wa...

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Washington, D.C. Testing substitute gasoline and measuring the degree of wear which it produces on an automobile engine cylinder at the U.S. Bureau of Standards

Washington, D.C. Testing substitute gasoline and measuring the degree ...

Public domain photograph of Washington DC, 1930s, free to use, no copyright restrictions image - Picryl description

U.S. conducts tests to improve acidity standards. Washington, D.C. June 16. At the National Bureau [of] Standards, Dr. Walter J. Hamer is making very accurate electrometric measurements on acidity standards. They are useful in the practical control of many processes such as electroplating, purification of drinking water, air conditioning, and manufacture of pulp and paper. 6/16/37

U.S. conducts tests to improve acidity standards. Washington, D.C. Jun...

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Washington, D.C. High school students who work as nurse's aides at emergency hospital learning to make a bed according to hospital standards

Washington, D.C. High school students who work as nurse's aides at eme...

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New radio meteorograph developed for the U.S. Navy. Washington, D.C., June 9. The National Bureau of Standards has recently developed for the U.S. Navy Meteorological Service a new radio meteorograph. The new instrument (shown in the picture) is sent up on a 5-Foot balloon and is expected to replace the use of airplanes in upper-air meteorological surroundings. E.G. Lapham, Associate Physicist of the bureau, is shown assembling the new meteorograph in preperation for an ascent. The device transmits audio notes which are a function of temperature and humidity. These notes are interrupted at approximately each 10-millibar increment in pressure, thus identifying each temperature and humidity indication with its respective increment of altitude, 6/9/37

New radio meteorograph developed for the U.S. Navy. Washington, D.C., ...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Washington, D.C. Testing substitute gasoline and measuring the degree of wear which it produces on an automobile engine cylinder at the U.S. Bureau of Standards

Washington, D.C. Testing substitute gasoline and measuring the degree ...

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Bureau of Standards breaks up plates for a reason. Washington, D.C., May 23. Just about everything manufactured in this country is made the subject of tests in the Bureau of Standards here. Even the dinner plates used in restaurants go through a series of tests in order that the government may known just how long it can expect them to last in usage. R.F. Galler, Chief of the White Wear section, is here operating an impact machine to determine the amount of force necessary to cause those germ-concealing chips in a plate. Previous in this test, the plate is ground with porcelain to find out how long a plate may be handled before it loses its gleam, and samples are heated to find out how much heat is necessary to cause cracks to appear in the glazing

Bureau of Standards breaks up plates for a reason. Washington, D.C., M...

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Bending steel girders. Washington, D.C., Sept. 23. During the testing of the rigid steel frame knees at the Bureau of Standards the officials were constantly watching the girders to determine the exact moment that the load buckled or weakened the knees. This was done as the huge 600,000 lb. testing machine applied the pressure to the steel knees. 9/23/37

Bending steel girders. Washington, D.C., Sept. 23. During the testing ...

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Bureau of Standards. Aerial view of Bureau of Standards

Bureau of Standards. Aerial view of Bureau of Standards

Public domain aerial photograph, no copyright restrictions image - Picryl description The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born Americ... More

Bureau of Standards. Aerial view of Bureau of Standards

Bureau of Standards. Aerial view of Bureau of Standards

Public domain aerial photograph, no copyright restrictions image - Picryl description The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born Americ... More

Bureau of Standards. Main building of Bureau of Standards I

Bureau of Standards. Main building of Bureau of Standards I

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Interesting job with Uncle Sam. Washington, D.C., Oct. 13. One volt after another is all in the day's work for Mrs. L.H. Brickwedde, who is a battery expert for the National Bureau of Standards. Using a potentiometer - or in other words, a standard cell comparator - Miss Brickwedde is shown calibrating standard cells in terms of priority standards of the electro motive force. 101337

Interesting job with Uncle Sam. Washington, D.C., Oct. 13. One volt af...

A black and white photo of a woman in a lab, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. Gen... More

Baseballs undergo outdoor tryout. Washington, D.C., Mar. 7. The government's test for velocity of the American and National League baseballs went out in the open air today, having learned all about the traits of the pellets within the laboratory. The Bureau of Standards transported it's paraphernalia to Griffith Stadium to let the baseballs be shot from their air gun and fly where they may. W.C. Mock, of the Bureau of Standards is shown making the test, 3738

Baseballs undergo outdoor tryout. Washington, D.C., Mar. 7. The govern...

A man standing next to a large machine, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. General ... More

Wash. D.C. Standards Bureau brake test. Richard S. Dill of the U.S. Bureau of Standards is examining a portion of brake lining after being subjected to a test and comparing it with a new piece. 10435

Wash. D.C. Standards Bureau brake test. Richard S. Dill of the U.S. Bu...

A black and white photo of a man in a factory, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. On sleeve: Please credit Harris & Ewing photos.... More

Experts at Bureau of Standards study effect of corrosive soils on specimens of pipe. Washington, D.C., Aug. 8. Of interest to home builders the country over is the study being made by experts at the National Bureau of Standards of the effect of corrosive soils on pipes and protective materials. Samples of pipe which have been buried for four years in fifteen soils differing widely in their characteristics, are being tested. Included are several varieties of ferrous materials as well as copper, brass, and bronze. Soldered and brazed joints, protective materials, and pipe made of a composition of cement and asbestos are also represented. Walter Johnson, of the Bureau, is pictured removing graphitic corrosion from cast iron with an air-driven tool. The corrosion products are too hard to be removed with a brush or by chemical treatment, 8/8/38

Experts at Bureau of Standards study effect of corrosive soils on spec...

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Bureau of Standards, National Photo Company, Washington DC

Bureau of Standards, National Photo Company, Washington DC

Exterior view of building in Washington, D.C. No. 1496. National Photo Company Collection (Library of Congress)

Dr. Kline and Dr. Briggs at Bureau of Standards, Dr. Julius Kline and Dr. Briggs at the Bureau of Standards file

Dr. Kline and Dr. Briggs at Bureau of Standards, Dr. Julius Kline and ...

A couple of men standing next to each other, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. Date based on date of negatives in same range. Gi... More

Hosiery testing machine. Washington, D.C., March 23. At the request of the General Federation of Women's Clubs, the U.S. Bureau of Standards has developed a hosiery testing machine. The machine simulates the force acting on a stocking at the knee and garter clasps in use. A survey was made of women's full fashioned silk hosiery from retail stores throughout the U.S. to provide a basis for a performance specification. After a few pulls, a poor stocking will show runs and lose it's shape. C.J. Pope, of the Bureau of Standards is shown with machine, 3/23/38

Hosiery testing machine. Washington, D.C., March 23. At the request of...

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How much wear will your carpet stand? Washington, D.C., March 19. A machine that produces the bending, slipping, twisting, and compression of the pile that takes place when a carpet is walked upon, has been developed by the National Bureau of Standards to test the durability of carpets. H.F. Schiefer, physicist at the Bureau, is shown in the photograph, 3/19/38

How much wear will your carpet stand? Washington, D.C., March 19. A ma...

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