US495725A - Gab starter and brake - Google Patents

Description

2 Sheets- Sheet 1.

Patented Apr. 18, 1893..

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A TTOHNEYS.

H. DUYS, Jr. GARYSTARTBR AND BRAKE.

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(No Model.) .I 2 'Sheets-Sheet' H. DUYS, JI. GAR STARTER AND BRAKE- No. 495,726` Patented Apr. 18, 1893.

fff. .THIN Q XFX- /N VE N 70H @Mah/r h @www ATTORNEYS UNITED STATES PATENT EEIGE.

HENRY DUYS, JR., OF NEV YORK, N. Y.

CAR STARTER AND BRAKE.

SPECIFICATION forming part of Letters Patent No. 495,725, dated April 18, 1893.

Application filed June 30, 1892. Serial No. 438,501. (No model.) i

To all whom it may concern.-

Be it known that I, HENRY DUYS, Jr., of New York city, New York, have invented an Improved Car Starter and Brake, of which the following is a specification.

This invention relates to an improved car starter and brake of the kind in which the power is stored in stopping the car to be utilized in starting. y

The invention consists in the various features of improvement more fully pointed out in the claim.

In the accompanying drawings: Figure l is a longitudinal section on line x, Fig. 2; Fig. 2 a bottom view of a car provided with my improvement; Fig. 3 a section through one of the axles; Fig. 4 a section on line y, y, Fig. 3; Fig. 5 a section on line z, z, Fig. 3; Fig. 6 a section on line w, fw, Fig. 3; Fig. 7 a section on line u, a, Fig. 3. Figs. 8 and 9 are sections on line '0, o, Fig. 6 showing the clutch in different positions.

The letters a', a', represent the Wheels of the car, fast on the axles d, as usual.

The braking and starting mechanism is duplicated for each axle and is as follows: Upon each axle a, there are free to revolve two bevel cog wheels l), c, meshing into a joint bevel cog wheel d, the shaft d', of which depends downwardly from the car bottom A. Upon each axle there are furthermore keyed two disks e, f, the disk e, being placed against the outer face of cog wheel b, and the disk f, against the outer face of cog wheel c. The disk e, is adapted to be locked to t-he bevel wheel b, by means of a friction clutch situated within adrum shaped extension b', of the bevel wheel and operated by means of a slide g, freely moving on shaft a. The disk f, is adapted to be locked to the bevel wheel c, by means of a friction clutch situated within a drum shaped extension c', of the bevel wheel and operated by means of a slide h, freely moving on shaft a. The slide h, is prevented from revolving independently of disk f, by means of a pin f2, on ,the disk entering a perforation h3, on the slide. The two slides g, h, are simultaneously moved in or out by the revolution of the ordinary brake rod t', provided at its lower end with a laterally extending arm fi', to the free end of which is pivoted bar 112, provided with links is, t". These links are connected to the forked arm i5, 116, engaging the slides g, h, respectively, and connected at their rear ends to the opposite endsof a lever 7, pivoted at is, to a fixed support. Vhen the brake rod e', is `revolved to draw the bar 2, forward (right hand end Fig. 2) the two slides will be moved inward, but when the brake rod c', is revolved one hundred and eighty degrees to reverse the position of arm t', and to push the bar i2, backward (left hand end Fig. 2) the two slides will be moved outward. A springj, facilitates the latter movementof the brake.

The slide g, is made in the form of a cone, which when moved inward, (to stop the car) engages and tilts a bent arm 7c, of arock shaft k. This rock shaft passes through a perforated sleeve or bearing e2, of disk e, and is provided at its inner end with a cam k2, entering the drum b. Within this drum there are contained the two sliding segments h2, of a friction brake (Fig. 5). It is evident that when the segments are spread or crowded against the rim of the drum b', by the cam k2, the drum will be tightly clutched to the slide g. But this slide is held to the axle by the bent arm le, and thus all these parts will revolve with the axle.

To the hub h3, of the wheel b, is attached one end of the power chain Z, the other end of which is attached to the power spring Z', and thus the'` chain is wound upon the hub and the spring is compressed to brake the car. During the winding up of this chain, the

wheel b, will revolve wheel d, and the latter p will in turn revolve Wheel c, in an opposite direction. As long as the brake is put on (right hand side Fig. l) the spring will remain wound up because the cam 7a2, keeps the segments b2, spread andA thus prevents the gear wheel from revolving backward. But as soon as the brake is released (to start the car) the conical slide g, is moved outward from under the arm 7c, and thus the rock shaft le', and cam 7a2, will resume their normal position and no longer spread the segments b2. In this way the gear wheel b, is released from frictional contact with shaft a, and the power IOO chain Z, exerting a continuous pull upon the wheel, will now unwind and revolve it backward. The wheel b, will by wheel d, revolve wheel c, forward. Within the drum c', of this wheel, are contained the two segments c2, of a friction brake. Between these segments enters a finger h', pivotally secured to the slide 7L, and having a rounded end h2. This finger passes through a notch f, of the disk ro f, and thus when it enters fully between the segments c2, it crowds the same against the rim of drum c', and clutches the wheel c, to the disk f. Thus as the wheel c, is revolved forward it takes the disk f (and consequently the axle a) with it to start the car. The engagement of the wheel c, with the disk f, takes place at the moment the brake is released and while the slide h, is still in proximity to the disk f, (right hand side Figs. l and 8.) As the revolution of the brake rode' is completed and the slide h, is thereby moved outward the finger h', is partly withdrawn from between the segments 02,(1eft hand side Figs. l and 9) so as to no longer cause the segments to bear against the rim of the drum c', and disengage the disk f, from wheel c. This is of course necessary so that the wheel c, can turn independently of and in opposite direction to the disk f, at the next braking of' the car.

In order to permit the tension of the brake to be regulated, the bent arm lo, is provided with a set screw 7c3, which bears against the conical slide g, and constitutes the surface against which the slide g, acts to tilt the rock shaft k. By turning this screw in either di rection, to change the distance between its lower point and the conical sleeve, the power of the brake may be readily adjusted to adapt it for lighter or heavier loads. The power springs l', are placed between guide rods m, attached by angle irons m', to a central supporting bar m2. This bar is provided at ifs ends with collars m3, that embrace the axles a. Upon the rods m, move the perforated slides n, and to the last of the slides a, the power chain is attached. Thus as the power chain is wound upon the hub h3, the spring is contracted and the slides are crowded together. The release of the power chain causes the spring to expand and to resumeits normal position.

It will be seen that my improved brake is operated by a semi-revolution of the brake rod fi, to revolve the arm t', through one half of a circle.

l. The combination of axle a, with intergeared cog wheels b, c, turning thereon and provided with clutches, a pair of fixed disks and a pair of slides operated by the brake rod and adapted to lock the cog wheels to the axle, substantially as specified.

2. The combination of axle a, with intergeared cog wheels h, c, turning thereon and provided with clutches, a pair of fixed disks e, f, a conical slide g, a rock shaft lo', having arm k, engaged thereby and provided with cam k2, engaging the clutches of wheel b, substantially as specified.

3. The combination of axle a, with intergeared cog wheel b, c, turning thereon and provided'with clutches, a pair of ixed disks @,f, a conical slide g, and a slide h, having a finger h', adapted to engage clutches of wheel c, substantially as specified.

4. The combination of axle a, with intergeared cog wheels b, c, provided with clutches, a pair of fixed disks, a pair of slides g, h, a rock shaft operated by slide t, and engaging the clutches of wheel b, and a finger h', on

slide h, engaging clutches of wheel c, substantially as specified.

5. The combination of axle a, with intergeared cog-wheels b, c, provided with clutches, a pair of fixed disks @,f, a pair of slides g,h, adapted to operate the clutches, and a pair of arms i5, 156, and a brake rod connected thereto for operating the slides, substantially as specified.

6. The combination of axle a, with cog wheels b, c, having drum shaped extension b', c', segments h2, c2, within said extensions, a pair of' fixed disks @,f, a cam k2, and a finger h entering between the segments, a conical slide g, arm 7a, and rock shaft k', for operating camrcZ, and a slide h, for operating finger h,substantially as specified.

7. The combination of axle a, with cog wheels b, c, fixed disk e, f, slides g, h, arm k, rock shaft s,and cam 7a2, segments b2, engaged by the cam and with a set screw 7c3, on arm k, and adapted to make adjustable contact with slide g, substantially as specified.

H. DUYS, JR.

Witnesses:

F. v. BRIESEN, A. JoNeHMANs.

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