Hendrick requests information about their battery. He intends to purchase an electric automobile, possibly a Columbia Surrey. Hendrick requires a battery of sufficient capacity to run a surrey 150 miles with one charge on good country roads such...
A view showing thee decked units housing the plating cells of three separate continuous electrotinning line using the DuPont Halogen Tine process. The central line of this installation at the Weirton Steel Company, Weirton, West Virginia,...
Salt is continuously fed from the purified salt storage bins above, through the final driers into the electrolytic cells. Salt is broken down by electrolysis into sodium and chlorine at the plant of DuPont's Electrochemicals Department in Niagara...
View of a new ultra-violet photometer, developed by DuPont scientists, shows the two sampling tubes running between the box at left, which encloses the light source, and the housing at right for two photo-electric cells with their rheostats and...
Written on back: "This 1902 Sears-Roebuck Motor Buggy, originally purchased by Marcellus Diehl of York, Pa., has been owned and operated by his nephew, J. J. Ruth, 561 Smith St., York, Pa., for 30 years. The motor has only been reconditioned once,...
Handwritten on page: "Centrifuge: Rotates at a speed of 2400 RPM to separate blood cells from blood plasma. The plasma is then stored in Blood Bank for emergency treatment of burns, etc."
