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shaft forming a pivot for the operating le- ver and adapted to be substituted for the or- dinary pivot of such a lever and having a crank located exteriorly of the side plate, 5 said crank being set at an obtuse angle to the lever and extending downwardly from the shaft, an exteriorly arranged cylindrical casing located below the shaft in substan- tially an upright position and having a con- 10 tracted upper end, a pivot bolt piercing the lower end of the casing and the side plate and arranged in vertical alinement with the said shaft, a coiled spring housed within the casing and seated upon the bolt, a rod con- 1s nected to the upper end of the crank and ex- tending into the casing and having an en- larged threaded portion, a nut arranged on
the threaded portion, and a washer mounted on the rod and engaged by the nut and bear- ing against the upper end of the spring to 20 compress the same when the lever is oscil- lated, whereby the lever is held in either po- sition, said washer being of greater diame- ter than the contracted end of the casing so as to retain the spring therein when the rod 25 is disconnected from the shaft and the said bolt confining the spring at the lower end of the said casing. In testimony whereof I affix my signature in presence of two witnesses. CHARLEY W. LYNCH. Witnesses: R. E. BENSON, N. STANDLEY.
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