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Production. Diesel engines. An inspector at a Midwest plant measures precision parts that will go into diesel engines being made for the Navy

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Production. Diesel engines. An inspector at a Midwest plant measures precision parts that will go into diesel engines being made for the Navy

Government discovers method to preseve film. Folding endurance test, The flexibility is measured in this folding endurance tester. A strip of film is folded back and forth under tension until it breaks, and the number of folds it withstands is counted. Three types of films have been studied, termed accoring to the chemical process of making them, acetate, viscose, and nitrate. The acetate base proved to be very stable on heating and is considered suitable for permanent records if properly made. The nitrate base became brittle quite raipidly and is considered unsuited for record purposes. The viscose base is in an intermediate position similar to that of record papers made from ordinary bleach wood fiber, 7/8/38

Lititz, Pennsylvania. Press room of the Lititz Record-express. Publisher Young waits for a bunch of papers to come off the press so that he can take them into the cutting and folding machine

Government discovers method to preseve film. Folding endurance test, The flexibility is measured in this folding endurance tester. A strip of film is folded back and forth under tension until it breaks, and the number of folds it withstands is counted. Three types of films have been studied, termed accoring to the chemical process of making them, acetate, viscose, and nitrate. The acetate base proved to be very stable on heating and is considered suitable for permanent records if properly made. The nitrate base became brittle quite raipidly and is considered unsuited for record purposes. The viscose base is in an intermediate position similar to that of record papers made from ordinary bleach wood fiber, 7838

A group of men standing around a machine. Office of War Information Photograph

A black and white photo of a man working on pipes. Great Depression FFSA / OWI Negatives

Production. Diesel engines. An inspector at a Midwest plant measures precision parts that will go into diesel engines being made for the Navy

description

Summary

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

date_range

Date

01/01/1941

person

Contributors

Palmer, Alfred T., photographer

United States. Office for Emergency Management.

place

Location

cleveland

create

Source

Library of Congress

link

Link

http://www.loc.gov/

copyright

Copyright info

Public Domain