Text on photo: "Made under Patent No. 74,379, granted to Michael Kelly, Feb. 11, 1868. In addition to the 'thorn wires' the letter-patent specified the use of a 'rope of twisted hay or other suitable cheap material, saturated with tar or analogous...
Table of Contents: A new home in Tennessee; Ocean deep, tower high; Speedup in the darkroom; Look who's shopping now; Report on dacron; The farmer's million-dollar coat; Stronger muscles for the air arm; Birth of a toothbrush; Those tireless tires;...
American Steel & Wire Company, subsiiary of United States Steel Corporation South Works, Worcester, Mass. High grade high carbon wires leaving a M. H. Patenting furnace and entering the molten lead quench bath before entering the take up reels
American Steel & Wire Company, subsiiary of United States Steel Corporation South Works, Worcester, Mass. General view of wet wire drqwing room cleaning and coating house. Wires to be drawn on wet wire drawing machines are immersed in an acid...
American Steel & Wire Company, subsiiary of United States Steel Corporation South Works, Worcester, Mass. Crimping machine producing a strand of 28 wires for use in revolving brushes for industrial and fine jewelry finishing
A flyer block of nylon, used in textile machinery, travels as fast as 15,000 revolutions per minute without lubrication. Attached to a spindle in the spinning operation, the flyer clock holds wires which provide necessary tension to the yarn. The...
Special bicycle with electrically 'loaded' wheel helps staff members at DuPont's Haskell Laboratory for Toxicology and Industrial Medicine study effects of fatigue on employees. Blood pressure and pulse rate of rider are carried by wires to...
This scene shows part of the loading of large cartridges of DuPont 60% gelatin dynamite in the Susquehanna River near Marietta, Pennsylvania. The cartridges were five inches in diameter, 24 inches long and weighed 25 pounds each. The illustration...
Hendrick reprimands Paul Hunt and the company for not following shipping directions. Hendrick reminds Hunt that he has not received the duplicate bill of lading he requested. He instructs Hunt to keep the wires hot and track down the missing...
Written on back: "See p. 86. Draft regulator for controlling the steam flow through exhaust-pipe of boiler during low-water tests. By means of wires the draft could be controlled from the operating shelter."
Text from back of image: "Jumping from an airplane 2200 feet above Coronado Bay, CA, recently with the intention of landing safely in the water, George La Wand, aerial daredevil, was caught by a gust of wind and blown over the residence section of...
Text on photo: "Patent for which (No. 67,117) was issued July 23, 1867, to William D. Hunt, whose claim read: 'providing the wires of a wire fence with a series of spur-wheels.' In 1875 Hunt applied for a re-issue. The patent was re-issued (No....
