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

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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

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

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

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

De Soto bomber plant, Detroit, Michigan. Dipping parts that are held by the springs in a plating solution

De Soto bomber plant, Detroit, Michigan. Dipping parts that are held by the springs in a plating solution

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

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

Deer Island Pumping Station, Boston, Suffolk County, MA

Deer Island Pumping Station, Boston, Suffolk County, MA

Naval Hospital Corps.[?], 1917 - Glass negative photogrpah. Public domain.

Naval Hospital Corps.[?], 1917 - Glass negative photogrpah. Public domain.

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

description

Zusammenfassung

Marineakademie, Annapolis, Maryland. Untersuchung eines Prüfgeräts Die tatsächliche Größe des Negativs ist D (ungefähr 3 1 / 4 x 4 1 / 4 Zoll). Anmerkung auf originalem Negativumschlag. Titel und andere Informationen aus gedruckten Losnummern. Transfer; Vereinigte Staaten. Amt für Kriegsinformation. Overseas Picture Division. Washington Division; 1944.

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Maryland
Anne Arundel County
annapolis
Nitrat negativ
Los 272
Whitman
Leutnant Whitman
Marineakademie
ultrahohe Auflösung
hohe Auflösung
Informationen des Kriegsministeriums
Farmsicherheitsverwaltung
uns Marineakademie
uns Marine
die Geschichte der Vereinigten Staaten
Kongressbibliothek
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Datum

01/01/1942
place

Lage

annapolis
create

Quelle

Library of Congress
link

Link

https://www.loc.gov/
copyright

Copyright-info

No known restrictions. For information, see U.S. Farm Security Administration/Office of War Information Black & White Photographs http://www.loc.gov/rr/print/res/071_fsab.html

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