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Scientific American, Vol. 84, No. 15 (1901) (1901)
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5-foot car is em- repairing breaks in a burnt or injured bridge. In the The tread for the rocker is a T-shape, with the head ployed, two extra truss rods being placed under the latter emergency it is necessary that, without track- laid on the deck. The rocker itself consists of two car to prevent… … Fig. 2.—DRIVING DECK SWUNG © 1901 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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