Maurer, Edward R. (Edward Rose), b. 1869 · New York : John Wiley & sons, inc.; [etc., etc.] · leaf 362
see Engineering News for July 24, 1913, or the paper bythe designer, Prof. L. E. Moore, in Engineering and Contracting for Aug. 13, 1913-)Determine how large a force applied to the crank handle at right angles to the crankis required to raise the draw span. i65-(45). Fig. 86 represents in plan… … Fig. 86 and ii takes up all the direct weight of the leaf, the upper hinge taking up only hori-zontal pull. Each leaf is opened and closed by means of an operating strut AB,pinned to the top of the leaf and to the rim of a horizontal bull-wheel; each wheelis driven by an engine through a train of…
Mechanics
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