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Cutting screen door stock to measurement. Screening demonstration. Charles County, La Plata, Maryland

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Conversion. Beverage containers to aviation oxygen cylinders. With the outside and inside of non-shatterable oxygen cylinder for high altitude flying complete, several rigorous tests are applied to guarantee safety. Every cylinder off the production line of the metal division of a large Eastern rubber factory is hydrostatically tested at 800 pounds pressure, twice the pressure maintained in the cylinder under normal use, to test the strength of the welding. It is then given air test at 400 pounds pressure as shown above. Here, an attendant is placing a cylinder into a steel compartment filled with water before the pressure is applied. By means of a hand crank, the inspector rotates at all points. Firestone, Akron, Ohio

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Cutting screen door stock to measurement. Screening demonstration. Charles County, La Plata, Maryland

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Summary

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.

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maryland
charles county
la plata
safety film negatives
screen
door
stock
screen door stock
measurement
demonstration
charles
plata
stockphoto
united states history
workers
library of congress
date_range

Date

01/01/1941
person

Contributors

Wolcott, Marion Post, 1910-1990, photographer
place

Location

La Plata, 38.52929, -76.97525
Google Map of 38.5292877, -76.9752514
create

Source

Library of Congress
link

Link

http://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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