Production. Airplane propellers. Frank Geary uses an electro-limit gauge at a Hartford, Connecticut, plant to make final inspections of a three-way hydromatic spider that form part of the mechanism which varies the pitch of airplane propeller blades while planes are in action. At this plant propellers are made with combinations of two, three and four blades
Summary
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1942
Contributors
Feininger, Andreas, 1906-1999, photographer
United States. Office of War Information.
Location
connecticut
Source
Library of Congress
Copyright info
Public Domain