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1940 s

40 s

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bakelite lamp bases

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bulbs

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Mary Petillo, forelady of a Newark, New Jersey factory making lamp bulbs and tubes for the Signal Corps, is an active member of her plant's laboratory management committee. The committee, set up in cooperation with the War Production Board's drive to speed victory, was elected in Mary's plant from a personnel of 1700, 350 of them men. Vice-president of her local, United Electrical, Radio and Machine Workers of America, Congress of Industrial Organization, Mary achieved the job of forelady by working working as a hand at many varied operations. She has made a suggestion to conserve bakelite lamp bases formerly discarded--a suggestion now in use at the plant--and is also the inventor of an apparatus which prevents short-circuiting during tests of lamps

Mary Petillo, forelady of a Newark, New Jersey factory making lamp bul...

Public domain photograph of laboratory, science, research, 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

Vice-President of her local, United Electrical Radio and Machine Workers of America, Congress of Industrial Organization (CIO), Mary achieved the job of forelady by working as a hand at many varied operations. She has made a suggestion to conserve bakelite lamp bases, formerly discarded (a suggestion now in use at the plant), and is also the inventor of an apparatus which prevents short-circuiting during tests of lamps. Mary Petillo, forelady of a Newark, New Jersey factory making lamp bulbs and tubes for the Signal Corps, is an active member of her plant's Labor-Management drive to speed victory. She was elected from a plant personnel of 1700, 350 of them men

Vice-President of her local, United Electrical Radio and Machine Worke...

Picryl description: Public domain image of a political campaign, politician, meeting, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

Production. Aircraft. Samples for microscope inspection--a lowly rivet, a screw, an extruded part--prepared by a test engineer in a large Western aircraft plant. Samples are embedded in bakelite, polished to mirror finish, then etched with acid to bring out the grain. A faulty grain structure, as revealed through the microscope, will show up low-grade material or faulty processing methods in the manufacture of the part

Production. Aircraft. Samples for microscope inspection--a lowly rivet...

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