s are laid out, in Works. The pipe is first filled with sand to prevent its distor the endless variety of labor-saving machinery employ- 1. Bursting Tests.—Hydraulic bursting tests were ap- tion, and it is then heated and forced by hydraulic ed, in the military precision with which the veritable… … 70,768. They are tested to 3,700 pounds to the prepared by giving it a coating of transparent 7.-WELDING COUPLINGS. square inch. The shells are 5 inches in diame- frit, which gives the appearance of the cap be- ing coated with transparent lacquer, and it i- ter and have a concave flanged bottom…
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