US285943A - Transmitting reciprocal to rotary motion - Google Patents

Description

(No Model.)

D. J AMES.

TRANSMITTING REOIPROGAL T0 ROTARY MOTION. No. 285,943. PatntedOot. 2, 1883.

' UNITED STATES PATENT Erica.

DAVID J. AMES, OF AUSTIN, ASSIGNOR OF ONE-HALF TO MOLAUGHLIN, SHELDON & 0., OF OVAIONNA, MINNESOTA.

TRANSMITTING RECIPROCAL TO ROTARY MOTION.

SPECIFICATION forming part of Letters Patent No. 285,943, dated October 2, 188?.

(No model.)

I? all, whom it may concern.-

- Be it known that 1, DAVID J. Auras, a citizen of the United States, residing at Austin, in the county of Mower'and State of Minnesota, have made certain new and useful Improvements in. flransmitting Reciprocal to Rotary Motion, of which the following is a full, clear, and exact description, reference being also had to the accompanying drawings, in which Figure 1 is a side elevation, and Fig. 2 is a plan View, of the apparatus. Fig. 3is an enlarged sectional side view, and Fig. 4 is an en larged cross-sectional view, of the double-act ing ratchet and pawl, actuated ehainpulleys, I 5 and the operating-shaft. Fig. 5 is an enlarged detached perspective view of the pawl-supporting drum and one of the pawls.

This device may be used in many different kinds of mechanical appliances, but is more cs pecially adapted to the transmission of the reciprocal motion of the operatingbar of windmills to the rotary motion of feed-mills and similar machines.

A represents an upright post, either set up 2 5 for the purpose or forming part of the windmill-frame. Pivoted by its center at a to this post A is a bar orlever, B, having an arm, 13,

secured to it at right angles, and to the outer end of this arm is secured thelower end of the 0 main operating rising-and-falling bar O of the windmill. The arm B? and lever B are suitably stengthened by braces b, so that they will .retain their same relative positions.

D is a shaft mounted in asuitable frame, F, 3 5 at any distance away from the p 0st A, as shown. This shaft may be the main driving-shaft of any kind of machine it is desired to operate or if applied to feed-mills the shaft 1) will be the spindle of the mill. Fixed upon this 40 shaft 1) is a balance-wheel, F ,"Tand a sleeve or hub, G, the latter being provided with two independent sets of sockets, (I, (see Fig. 5,) in which two independent sets of pawls, c, are set and held by their inner enlarged ends, so that 4.5 while free to oscillate slightly in the sockets they cannot be removed therefrom except endwise of the sockets.

H H are two sprocket or chain pulleys hav ing hollow interiors provided with teeth 9, up on which the pawls c catch, as shown in Figs.

3 and 4-. These chain-pulleys are loose upon the shaft 1), but are held in close proximity to the hub G by collars K K fixed to the shaft D. By this means either or both of the chainpulleys, being revolved in one direction, will 5 5 engage the pawls with their teeth 9 and revolve the hub G- and shaft 1), but will slip over the pawls and not affect the shaft or hub when revolved in the opposite direction, so that if the chain pulleys be alternately oscillated upon the shaft 1) the latter will be constantly revolved, as one of the chain-pulleys will be revolving the shaft forward during the backward move ment of the other one.

h is a small rod connected loosely by one end to the upper end of thelever B, and jointed at its other end to two similar rods, h 71?, one leading to a chain, h, running over the chainpulley H, and the other leading to a chain, it, running underneath the chain-pulley HF, as shown.

h is another small rod, connected loosely to the lower end of the lever B, and jointed at its other end to two small rods, h it leading to the opposite ends of the chains hf h from the 75 rods h h.

"When the bar 0 is forced downward, the upper end of the bar B will be moved outward and the lower end inward, in the position shown in the drawings. This will cause the rod hto draw the chain h, by means of the rodif, over the pulley H and revolve the shaft 1) a short distance. At the same time the rod h" will. draw the chain 715' around the pulley H from the opposite direction and revolve the pulley 8 5 backward, but not affecting the shaft 1), as the pawls slip overthe teeth Then, when the bar O moves upward the upper end of the lever 13 is moved inward and the lower end outward, thereby causing the rod h, by means of the rod 71 to draw the chain it forward over i the chain-pulley H and revolve the latter and the shaft 1) a short distance, while at the same time the rod it will draw the chain It backward beneath the pulley H, and thereby reverse the 9 5 motion of the latter, so as to be ready for the next stroke. By this means the vibrating motion of the lever B will, by means of the rods It, 71?, h, h, 7: and its and the chains 7% h, a1- tcrnately oscillate the pulleys H H upon the 2 I H fissile shaft D and revolve the latter constantly, as the small amount of lost motion caused by the change of stroke of the lever B will be overcome by the balance-wheel F.

-What I claim as new is-.

1. A shaft carrying a fixed collar having two independent sets of pawls pivoted thereon,two

- independent chain-pnlleys loose upon said shaft and. provided with ratchet-teeth upon their interiors, chains h if, centrally-pivoted oscillating bar B, and a series of rods connecting the free ends of said bar with said chains, substantially as and for the purpose set forth.

2. The combination of the shaft D, hub or collar G, pawls e, chain-pulleys H H having teeth g on their interiors, chains h if, coupling-rods 76- h h h main rods h h, centrallypivoted bar B, having right-angled arm B, and vibrating arm 0, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. v a

' DAVID J. AMES.

\Vitnesses:

J. M. GREENMAN, G. H. WILBOUR.

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