US521780A - Mechanical movement - Google Patents

Description

(No Model.)

, J. G. BUTLER.

MEGHANIGAL MOVEMENT.

N0..521,780. Patented June 26, 1894-.

5Jcfi71, C. Buzzer 2196/ Q IIIHIIHINII'JIIIIIIHIIHE a: NATIONAL Ln'uoeRAPH if UNITED STATES PATENT I OFFICE.

.JosEPH o. BUTLER, OF NEW PROVIDENCE, IOWA.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 521,780, dated June 26, 1894.

Application filed September 23, 1893- Serial No. 436,341. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH C. BUTLER, a citizen of the United States, residing at New Provldence, in the county of Hardin and State of Iowa, have invented certain new and useful Improvements in Mechanical Movements; and I do hereby declare that the following is a full, clear, and exact description thereon.

of the same, reference being had to the anne red drawln gs, making a part of this specification, and to the letters of reference marked The present invention relates to mechanical movements for converting reciprocating.

motion into continuous rotary motion, and it has for its object the provision of simple and efficient mechanism for this purpose and to this end said invention consists in the device having the construction hereinafter specified and claimed.

In the annexed drawings, Figure 1 is a side view of my mechanism; Fig. 2 a section on the line a:00 of Fig. 1.

Referring to the drawings by letter, A designates the reciprocating part, in the form of a rod or bar, and B the shaft to which it is desired to impart a continuous rotary motion from the former, said shaft being journaled in bearings on a suitable frame 0. The lower end of the bar A is pivotally connected to a rocking bar or lever E fulcrumed or pivoted upon a roller F journaled on a rod or shaft f that is mounted on the frame 0. At its end adjacent to the point of connection of the bar A, the lever E is pivotally. connected to a bar G that is adapted to swing through substantially a half circle on a pivotg that is also mounted on the frame 0. It will be seen that the to and fro movements of the bar A will rock the lever E upon its fulcrum but owing to the connection of the lever to the link or bar G said lever will have a longitudinal movement as well as a rocking motion. To permit this longitudinal movement the lever has a slot H at its center that allows play over the fulcrum roller F. At its end away from the point of connection of the bar A the lever E has a curved slot I whose op posite sides are provided with gear teeth 6,1,

the teeth of one side being in'a vertical plane to one side of those of the other so as to enable each to drive a gear wheel J upon the shaft B without interference with the other. The two gear Wheels are mounted loosely on the'shaft and each is adapted to be clutched thereto, when revolved in one direction, by its own pawl and ratchet mechanism L of Well known construction comprisingaratchet wheel keyed to the shaft and pawls carried by the gear wheel. Said mechanisms L' are arranged to operate reversely so that one wheel J will be clutched to the shaft on the downward movement of the toothed or rack bar end of the lever E,and the other wheelJ clutched thereto on the reverse movement.

Each gear wheel J is given a diameter proportioned to the radius of the rack bar with which it meshes so that a uniform speed of rotation will be imparted to the shaft B.

It will of course be evident'that the rack bars cannot be curved in arcs of circles because of the compound motion of the lever E. Their curves are the resultants of such-motion, and it necessarily follows that for a given movement of the bar A they will be longer than they would if they were arcs of circles and accordingly impart a greater number of revolureciprocating part is connected, a pivot for said lever away from said shaft and means to move the lever longitudinally as it is vibrated by said part, substantially as specified.

2. In a mechanical movement, in combination, a reciprocating part a shaft to be rotated thereby, gear wheels loosely mounted .tions to the shaft than they would as arcs of 7 on said shaft, means to clutch them thereto In testimony that I claim the above I have alternately, a. lever having curved rack bars hereunto subscribed my namein the presence to at one end meshing with said wheels and conof two witnesses.

nected to said reciprocatin" part near its other 5 end, a pivot for the leve l between its ends JOSEPH BUTLER over which it is adapted to slide, and a piv- Witnesses: oted bar pivotally connected to the lever, sub- NORTH MILLER,

stantially as specified. II. F. JOHNSON.

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