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754,130
cal crank-shaft having upper and lower arms and mounted on the bearing-block, an arched bar connecting one of the arms with the other beam, a segment provided with teeth and hav- 5 ing a depending yoke straddling the beam on which the bearing-block is mounted, an oper- ating - lever fulcrumed on the segment and connected with the other arm of the crank- shaft, and latch mechanism carried by the le-
ver for engaging the segment, substantially l0 as described. In testimony whereof I have hereto affixed my signature in the presence of two witnesses. WILIIAM LAPAYETTE EDDIY Witnesses: J. S. EDDY, BERTIE MASON.