Part of PICRYL.com. Not developed or endorsed by the Library of Congress

library of congress

united states history

acetate negatives

ave

cellulose sales co

new york

new york city

new york state

offices

cellulose

public
18 media by topic ∙ page 1 of 1
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...

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

Rolls of lint from the cottonseed used in making of ammunitions and various cellulose products. Oil plant, Clarksdale, Mississippi Delta

Rolls of lint from the cottonseed used in making of ammunitions and va...

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

Bale of cotton linters and bale of middling cotton side by side in waarehouse. The bale of linter, on the side, left, is the fiber which is close to the seed. One of its major uses is the making of cellulose. Houston, Texas

Bale of cotton linters and bale of middling cotton side by side in waa...

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

Cellulose Sales Co., 250 Park Ave., New York City. Accounting office

Cellulose Sales Co., 250 Park Ave., New York City. Accounting office

Picryl description: Public domain image of an office, table, bureau, desk, free to use, no copyright restrictions.

Cellulose Sales Co., 250 Park Ave., New York City. Secretarial office

Cellulose Sales Co., 250 Park Ave., New York City. Secretarial office

Picryl description: Public domain image of a living room, salon, office, late 19th-century interior, free to use, no copyright restrictions.

Lowly corn cob has many uses. Thanks to successful experiments of the Department of Agriculture, corn cobs can now be made into many valuable by-products. Dr. W.W. Skinner is shown pointing to a block of heat insulating material made from corn cob. Next to the corn cob are samples of by-products, including furfural, lignin, ethyl alcohol, cellulose, xylose, adhesive, acetic acid, glucose, carbon and a printing plate made from phenol-furfural resin. In front of the cob are skeins of rayon dyed with colors made from lignin of the corn cob, 11/20/30

Lowly corn cob has many uses. Thanks to successful experiments of the ...

Public domain photograph of pharmacy, convenience store, free to use, no copyright restrictions image - Picryl description

National Archives. Washington, D.C., Nov. 22. The documents between two highly polished metal plates and sandwiched between two sheets of cellulose acetate is placed in the hydraulic press

National Archives. Washington, D.C., Nov. 22. The documents between tw...

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

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...

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

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Johansen at desk

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Johansen at des...

Public domain photograph of New York City interiors, 1940s, 1950s, no copyright restrictions image - Picryl description

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Wales' office

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Wales' office

Picryl description: Public domain image of an office, table, bureau, desk, free to use, no copyright restrictions.

Cellulose Sales Co., 250 Park Ave., New York City. Reception office and supply room

Cellulose Sales Co., 250 Park Ave., New York City. Reception office an...

Public domain photograph of early 20th-century New York metropolis cityscape, buildings, no copyright restrictions image - Picryl description

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Wales at desk

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Wales at desk

Public domain photograph of New York City interiors, 1940s, 1950s, 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

National Archives. Washington, D.C., Nov. 22. Preservation of documents has long been a problem in libraries and offices of record. It was once done by a process known as 'crepelining,' which consisted in placing coarsely woven silk over and under the paper to be preserved with the use of adhesive. The most modern process now used is called the laminating process and consists in sandwiching the document between two sheets of thin, transparent cellulose acetate. This is then placed between two highly polished metal plates and subjected to heat and pressure in a hydraulic press

National Archives. Washington, D.C., Nov. 22. Preservation of document...

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

Forest Products Laboratory, Madison, Wisconsin. The Forest Products Laboratory has developed from lignin a black plastic which looks like bakelite. Wood contains about eighty percent cellulose fibre and twenty percent lignin, which has heretofore been considered waste. A laboratory workman is dumping a lignin sawdust compound into the digestor, the first step in the processing of the plastic

Forest Products Laboratory, Madison, Wisconsin. The Forest Products La...

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

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Johansen's office

Cellulose Sales Co., 250 Park Ave., New York City. Mr. Johansen's offi...

Picryl description: Public domain image of an office, table, bureau, desk, free to use, no copyright restrictions.

Substitutes. Composition clock cases. Good clock-making materials from waste. Old paper, sawdust, wood scrap, rosin--anything with a fiber--yield cellulose for the making of composition clock cases, frame plates and other parts at the Winsted, Conneticut plant

Substitutes. Composition clock cases. Good clock-making materials from...

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

Rolls of lint from the cottonseed used in making of ammunitions and various cellulose products. Oil plant, Clarksdale, Mississippi Delta

Rolls of lint from the cottonseed used in making of ammunitions and va...

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