US288739A - Device for converting motion - Google Patents

Description

(Nd Model.)

' G. W. RICHARDSON.

DEVIGE FOR CONVERTING MOTIQN. N0. 288,739. Patented Nov. 20, 1883. E

w into 1.

UNITED STATES PATENT OFFICE.

GEORGE W. RICHARDSON, OF PLANO, ILLINOIS.

DEVICE FOR CONVERTING MOTION.

SPECIFICATION forming part of Letters Patent No. 288,739, dated November 20, 1883.

Application filed Jnly19,18 83. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE WV. RICHARDSON, a citizen of theUnited States, residing at Plano, in the county of Kendall and State of Illinois, have invented certain new and useful Improvements in Devices for Converting Motion; and I do declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had tothe accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. 7

My invention relates to devices for converting reciprocating into rotary motion; and it consists in the construction, combination, and arrangement of the several parts,'as will be hereinafter described and claimed.

In the drawings, Figure 1 is a side view of my device in connection with suitable operating mechanism. Figs. 2 and 3 areside views of the device, with the clamping block or roller in different positions. Fig. 4 is a planview thereof. Fig. 5 shows a modification; and Fig. 6 is a detached detail view on an enlarged scale, as will be described.

The wheel A is secured on a suitable shaft, A, to which it is desired to give a rotary motion. The arm B is journaled or pivoted in such manner that it will swing approximately concentric with the said wheel, and preferably on the shaft A, as shown. This arm B is provided with the slot B, which extends through the arm in line with the wheel A, and adjacent to the periphery of said wheel, as shown. Openings are preferably cut through the side walls of this slot, so the position of the clamp ing block or roller, hereinafter described, may be at all times ascertained readily and with certainty. I form this slot with its outer wall, I), eccentric with the wheel A, so that the space between it and the wheel is made narrowest or contracted at its opposite ends. I prefer to curve this wall as shown; but it will be understood it could be formed in an obtuse form, and the same result would be obtained.

The roller 0 is journaled in the ends of arms 0' of frame 0', and is arranged within the space between wall I) and wheel A, and of a diameter slightly smaller than the middle portion of said space, though slightly larger than the ends thereof. The frame 0 is passed through the ends of the slot, and its cross-bar c is pro vided with a small slot, 0 which forms a seat for the springs hereinafter described. Holes ctare formed through the arms 0 of the frame at such point that when the said holes are, brought to register with the holes I) and the pin b is passed through them the roller will be held in the middle or widest portion of the space between the wall b and the wheel, as Shown in Figs. 5 and G.

The spring-bars D D are secured at one end to the arm A, and their opposite ends are bentthe former up and the latter downwith, respectively, an upward and downward tension, and in position to engage in the slot 0 so as to operate the frame 0 and draw the roller into the narrow or contracted ends of the space between the wall I) and the wheel.

In Fig. 2 the spring D is shown in engagement with the frame C, drawing the roller 0 up into the narrowed end, next the spring, of the space between the outer wall, I), of the slot B and the wheel, and as reciprocating motion is given the arm B the direct stroke (indicated by fulllined arrow in Fig. 2)'will clamp the roller 0 between the narrow space at end of slot, and the wheel will be revolved in the direction indicated; but in the reverse move ment of the arm, as indicated by dotted arrow, the roller will spring back slightly into thewide portion of the space and not revolve the wheel, any suitable pawl or stop being employed to prevent the reverse movement of the arm from affecting the wheel. In practice, however, I prefer to extend the arm across the face of the wheel, with the operating rollerframes employed on each side of the wheel and diametrically opposite each other, as clearly illustrated in Fig. 1, in which figure I also indicate the spring D in engagement with the carrier-frame, so as to revolve the wheel in the opposite direction from that shown in Fig. 2. By this means the use of the stoppawl is avoided and the wheel given a continuous rotary motion, instead of an intermittent one, as in case of the construction shown in Fig. 2, unless several of the single arms shown in said figure'were provided to operate the shaft A and move alternately, so as to give it a continuous motion, as will be readily understood.

The arm may be given the reciprocating motion by hand; but I prefer to use power-for instance, such as shown in Fig.1, where the pitman E connects the arm with a crank-wrist formed on the fiy-wheel E, operated by piston-rod E, vworking out of the cylinder E; and I provide a series of holes, 6, in the arm B, so the connection of the pitman may be changed .to vary the leverage.

verse stroke; but I prefer the construction shown, and before described.

I also prefer to make the slot so that the space between the Wall I) and the wheel will be narrower at its opposite ends, practically double-ended, because of the ease of reversing the motion, as before described. It will be'understood, however, that this space might be made narrow at one end only and reversed to change the motion of the wheel, this reversal being accomplished by removing the arm from the wheelshaft and turning it around, as will be readily understood.

It will be understood that one object of the before-described device is to obviate the necessity of belts, gearing, &c.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. The combination, with the wheel, of a reciprocating arm moving approximately 0011- centric therewith, and having a slot formed through it adjacent to the periphery of said wheel, the outer wall of said slot being so curved that the space between it and the wheel is made smaller or contracted in width at its rear end, as described, and a roller or block placed within the said space and suitably supported, whereby it may be alternately clamped in and released from the contracted portion Instead of using thereof in the direct and reverse movement of the arm, substantially as and for the purposes set forth.

2. The combination, with the wheel, of a reciprocating arm moving approximately concentric therewith,having a slot formed through it adjacent to the periphery of the wheel, the outer wall of said slot being cut in such manner that the space between it and the wheel is narrower at its opposite ends than at its intermediate or middle portion, a clamping block or roller placed within the said space, and means whereby this block or roller may be held in either end thereof, substantially as and for the purposes set forth.

3. The combination, with the wheel, of a reciprocating arm extended across the face of and swinging approximately concentric therewith, and provided with slots adjacent to the periphery of the said wheel and diametrically opposite each other, the outer walls of said slots being so formed that the distance between them and the wheel isnarrowest at the rear portion thereof, a clamping block or roller placed in the said space, and means whereby the latter is held in the contracted portion of the space, substantially as and for the purposes set forth.

4. The combination of the wheel, the reciprocating arm swinging concentric with said wheel, and provided with a slot adjacent to the periphery thereof, the outer wall of said slot being so curved that the space between it and the wheel is contracted or narrowed at its opposite end, the clamp block or roller placed within the said space, the carrier-space having the clamping-block held in one end and its opposite end adapted to be engaged by the spring-bars, and the spring-bars having one end affixed to the reciprocating arm and their other ends bent, the one to have an outward and the other an inward tension, and arranged in position to engage the carrier-frame and operate the same, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE WV. RICHARDSON.

Vitn esses:

V. E. MOLELLAN, WV. T. SEATON.

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