April 13, 1931, G.A. Pennock sent C.W. Bergquist a report titled: An Account of the Work of the Industrial Research Division. The Industrial Research Division was established in January, 1929 to centralize the test room study, the employee...
Weston (of Newark, NJ) Electrodynamometer Milliammeter model 370 No. 1519. Measures small electrical currents, milliamperes. Reliable within .25%. To obtain greatest accuracy on direct current, reversed readings should be taken to eliminate the...
Weston (of Newark, NJ) Electrodynamometer Milliammeter model 370 No. 1519. Measures small electrical currents, milliamperes. Reliable within .25%. To obtain greatest accuracy on direct current, reversed readings should be taken to eliminate the...
Weston (of Newark, NJ) Electrodynamometer Voltmeter model 341 No. 2104. Measures the voltage of an electrical circuit. Reliable within .25%. To obtain greatest accuracy use the formulas on the authentication certificate. No correction for...
Bausch and Lomb abbe type refractometer measures the refractive index, how light passes through, of an item. It was also used to determine the concentrations of solutions. There is a thermometer missing, which that helped to keep the liquid at a...
Bausch and Lomb abbe type refractometer measures the refractive index, how light passes through, an item. It was also used to determine the concentrations of solutions. There is a thermometer missing, which that helped to keep the liquid at a...
Detailed daily descriptions of every variable adjusted in the relay assembly test room, including seating positions, methods to track production, temperature, humidity and lighting.
Unfinished rough draft that concentrates on determining under what conditions people perform their best work. Records were kept of each test employees amount of sleep, diet, attendance, comments, physical examinations, and earnings. The temperature...
