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2a
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drives may be placed in operative position and the other drive placed out of operative position. I claim. 5 1. In a device of the character described, a pair of longitudinally movable rods main- tained in alinement one with the other, a pair of links which are connected by a knuckle joint one of the links being pivot- 10 ally connected to one of the rods and the other link pivotally with the other rod, the links being adapted to be placed in aline- ment to separate the ends of the rods and to maintain them connected for reciprocation, 15 an oscillating actuating means, a second pair of links which are connected by a knuckle joint one of the links of said pair being con-
nected to one of the rods and the other to the oscillatory actuating means. 2. In a device of the character set forth, a 20 pair of alined rods each mounted for recip- rocation, a toggle-joint connecting the rods both operatively or inoperatively, an oscil- lating actuating means, a second toggle-joint connected to one of the rods and to the 25 actuating element which is mounted for oscillation and connected to said second toggle-joint. being adapted to be positioned operatively or inoperatively with respect to the oscillatory actuating element. JOHN W. TAYLOR. witnesses: JOHN CHATHAM, NV. C. FYFFE.
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