US363472A - Mechanical movement - Google Patents

Description

(No Model.)

2 Sheets-Sheet 1. s. LAKE.

MECHANICAL MOVEMENT.,

Patented May 24, 1887i.

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No. 3633172. Patented May 24', 1887. 7 FL 2 l f I i (Ir/D I @Wtmom x MUM #1 W' I v v PETERS Phalo-Lflhngrfkphev. wuhin ton. n C

UNITED STATES PATENT ClFFICE.

SIMON LAKE, OF OCEAN CITY, NEW JERSEY.

-MECHANlCAL MOVEMENT.

EPECIFICATION forming part of Letters Patent No. 363,472, dated May 24, 1887. Application filed August 5, 1886. sci-m1 No. 210,111. (No modeLl To all whom it may concern:

Be it known that I, SIMON LAKE, a citizen of the United States, residing at Ocean City, in the county of Cape May and State of New Jersey, have invented certain new and useful Improvements in Mechanical Movements; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referenoe being had to the accompanying drawings, and to the letters and figures of referenee marked thereon, which form a part of this specification.

My invention has relation to mechanical movements; and the object of the device is to provide a mechanical device which may be readily and simply operated to apply the power to the driven shaft in such a manner that the strain or reaction from the driven parts will be prevented from affecting the prime motor. I

To'this end the novelty consists in the construction, combination, and arrangement of parts, as will be more fully hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings the same letters of reference indicate like parts of my invention.

Figure 1 is a top plan view of my mechani' cal movement. Fig. 2 is a sectional view on the line at as, Fig. 1; and Fig. 3 is a modification of the same, the working parts being the same; but the handle or lever is extended on each side of the fulcrum, so that both handles may be used for operating, instead of one, as in the first instance.

A represents a stationary cylinder, which is suitably secured in a rigid position to any convenient part of the frame.

B represents the end of the shaft or other part to which the power is to be applied, and said end B turns freely in the cylinder A.

O O are taper keys adjustably secured in slots 0 c by means of screws o c, and D D are bearing-blocks, likewise located in said slots and having their forward ends semicircular in shape to correspond to and form seats for the friction-pawls E E, the outer curved ends of which form the periphery of a circle at a tan gent to the inner surface of the cylinder A. These two pawls E are connected by aspiral spring, 0, which tends to draw them together until their adjoining ends or that point of their outer ends marked a is in contact with the inner surface .of the periphery of the cylinder A. 1

F is a lever pivoted or fulerumed by the screw-bolt f to the end -of the shaft 13, and

extending diametrically a suitable distance across and beyond the outside of the cylinder. G G are lugs 011 the shaft 13, between which the lever F plays, and I I are arms on the le-.

eral movement in the cylinder by reason of the pawls engaging the same. If, however, the shaft is to be moved, say, in the direction of the arrow, the lever is pushed in that direction, and the arm on that side first pushes the forward pawl ahead, so as to release it from the cylinder, and the lever then comes in contaet with the forward lug, and of course the shaft is moved forward as far as necessary. At the same time the forward pawl is released the rear pawl is undisturbed, thereby locking the shaft against any backward strain, and it will be observed that as the shaft is intermittently moved forward the rear pawl follows up and locks the shaft in whatever position it may be left. It will also be observed that should the strain on the shaft be reversed or come in the opposite direction the forward pawl would then look it in the same manner as in the first instance. Of course the lever and shaft may be moved in the opposite direction to that indicated by the arrow.

The modification, Fig. 3, shows the lever extending across and on both sides of the shaft, whereby it may be the more conveniently grasped by both hands for operatin From the above it will be seen that the device is extremely simple, and can be employed.

wherever a crank or lever power is required to sustain a weight or pressure in one or both directions without the strain coming on the leveras, for instance, in steering apparatus, capstans, windlasses, and all forms of'hoisting devices; also, for the steering-gear of bicycles and tricycles, road-engines, and, in fact, in any class of machinery using a power-controlling device. Of course it will be seen that should the outer surface of the pawls wear they may be adjusted outwardly by means of the taper key and screw. This can be done either by forcing the wedge nearer the lower end of its socket or by providing its upper end with a slot through which the screw is passed.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. The combination, with a cylinder or easing, of a shaft located within said cylinder, and mechanism, as described, whereby the said shaft may be freely moved in either di rection and automatically locked against any reactionary strain or pressure, as set forth.

2. The combination, with the cylinder, the shaft, and the pawls or detents carried by the shaft, of the lever arranged to operate the pawls and shaft, as set forth. I

3. The combination, with the cylinder, of the shaft provided with lugs, the pawls, a connecting-spring, and thelever fulcru med to the shaft, so as to be capable of' a movement in advance of the shaft, and arms arranged to operate the pawls before said lever operates the shaft, as set forth.

4. The combination, with the lever, the cylinder, and the shaft, of the pawls adjustably held in the end of the shaft, whereby they may be moved toward the cylinder, substantially as set forth.

5. The combination of the cylinder, the shaft having the lugs, the lever, the pawls, the bearingbloclcs, and the tapered keys, all arranged and operating substantially as herein described and shown.

SIMON LAKE.

Wit n csses:

R. W. BISHOP, H. J. ENNIS.

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