US1004519A - Brake-handle. - Google Patents

Description

2 SHEETS-SHEET 1.

Patented Sept. 26, 1911.

W. S. ADAMS.

BRAKE HANDLE.

y @afa/Www MM ffwm APPLICATION FILED PEB. 17,1911.

Ill I COLUMBIA PLANGGIAPM Co.. WMNINnTnN. n. C.

W. S. ADAMS.

BRAKE HANDLE.

APPLICATION FILED 11:11.17, 1911.

PatentedY Sept. 26, 1911.

2 SHEETS-SHEET 2.

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` 3 WALTER S. ADAMS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE J. G. BRILL COMPANY, F PHILADELPHIA, PENNSYLVANIA, A CORPORATION 0F PENNSYL- VANIA.

BRAKE-HANDLE.

Specification of Letters Patent.

Patented Sept. 26, 1911.

Application filed February 17, 1911. Serial No. y609,150.

To all whom it may concern:

Beit known that I, WALTER S. ADAMS, a

Y citizen of the United States, residing in panying drawings, in which,-

Figure 1, is a sectional elevation of my improved brake mechanism showing the parts in gear; Fig. 2, 1s a view similar to Fig. 1 showin@` the arts out of rear and in D n, b ha v i position to release the brake; Fig. 3, is a plan view of Fig. 1; Fig. 4, is a sectional view on the line 4--4, Fig. 1; Fig. 5, is a sectional view on the line 5-5, Fig. l; Fig. 6, is an enlarged view of part of Fig. 1; Fig. 7 is a perspective view of the pinion carrying the spindle; Fig. 8, is a detached perspective View of the bearing on which the handle is mounted; Fig. 9, is a detached perspective view of the two ratchets; and Fig. 10, is a detached perspective view of the ball, block and pivot pin.

A is the shaft, carrying at its lower end Ythe ordinary ratchet wheel a, with which engages a pawl actuated by the foot of the motorman or driver, and usually on this shaft is a drum for the recept-ion of the brake chain, or the shaft may be geared to a second shaft carrying the drum, if desired.

My invention relates wholly to the means for actuating the main shaft A. Secured to the upper end of the shaft A is a gear wheel A mounted within the casing B forming the bearing for the upper end of the shaft A, and the bearing for the pinion carrying spindle C. Secured to this spindle is the pinion C which, when in the position illustrated in Fig. 1, meshes with the gear wheel A and through which motion is imparted from the handle D to the shaft A. In the upper endb of the casing B is mounted a bearing E having a bracket e and extending through the bracket and through the handle is a pivot pin e on which the handle D is mounted. The handle has a beveled flange (Z, which fits on a beveled seat e2 in the bearing E when the handle is in the normal position, preventing the access of dirt or other foreign matter to the mechanism with` in the casing. Secured to the bottom of the bearing E is a ring E which confines the bearing to the portion I) of thecasing. This bearing is free to rotate but cannot move vertically.

The spindle C is made, as clearly illustrated in Fig. 7 and is forked at its upper end forming bearings 0 0 for a pin f on which is mounted a block f. This block and pin are attached to the stem g depending from the ball Gr. By this construction the stem must move vertically with t-he ball as the handle D is moved on its pivot. Directly below the bearings o-c on the spindle is a hexagonal flange c', and below this lange is an annular seat c2. Mounted on this seat 02 is a ratchet ring I-I, Fig. 9, which is shaped to conform t0 the hexagonal flange c so that the spindle must turn with this ring. This ratchet ring has teeth 72, which mesh with teeth z' on a ratchet ring I having a hexagonal flange z" adapted to the hexagonal opening e in the bearing E, Fig. 8. A spring J is confined between the grooved upper surface of the ratchet ring I and a washer' g on the stem g of the ball G. This spring tends to force the upper ratchet ring I into engagement with the lower ratchet ring H so that when the handle is turned in one direction the spindle C will be turned and motion will be imparted to the shaft A. When the handle is moved in the reverse direction, the teeth of the ratchet ring I will slide over the teeth of the ratchet ring H as the spring yields, thus the handle may be ratcheted to apply the brake. The ball G is mounted in a socket d in the head D of the handle and closing the socket is a screw cap (Z2. By removing this screw cap the ball can be detached after the cotter pin confining t-he stem g to the pivot pin f is withdrawn. In the upper portion of the ball is a slot for the reception of the end of a screw driver. By this construction the shaft A can be immediately released from `the control of the handle by pressing down clear of the gear wheel A, and when the shaft is released from the control of the foot pawl, the brakes will be immediately released.

In order to return the spindle and the handle to their normal positions, as soon as the handle is released I provide a spring n which is mounted on the lower end of the spindle C and confined between a shoulder b on the casing B and a washer n on the end of the spindle C. The pinion C is prevented from turning on the spindle C by a key or feather and is held in place by a nut c3 adapted to the threaded portion of the spindle.

By constructing the mechanism as illustrated the main brake shaft A can be placed close to the vestibule casing and consequently the brake mechanism will not occupy as much space as is occupied by a brake of the ordinary construction.

By the above construction it will be seen that I am enabled to apply the brakes with rconsiderable power, ratchet-ing the handle linstead of making a full turn and I dispense with the dangerous practice of releasing the handle and allowing` it to t-urn rapidly.l

I claim l. The combination in a car brake operating mechanism of a main shaft, a gear wheel thereon, a spindle, a pinion mounted on 4the spindle, a pivoted brake handle connected to the spindle so that on moving the brake handle on its pivot the pinion will be moved out of mesh with the gear wheel to release the shaft.

2. The combination of a main shaft, a gear wheel thereon, a spindle, a pinion carried by the spindle, a pivoted handle by which the spindle is raised and lowered to move the Pinion out of mesh and into mesh with thevgear wheel, with ratchet mechanism interposed between the handle and spindle for turning said spindle.

3. The combination of a main shaft, agear wheel thereon, a spindle, a pinion secured to the spindle, a ball mounted at the end of the spindle, a pivoted handle having a socket adapted to receive the ball, a bearing to which the handle is pivoted, and ratchet mechanism between the bearing and the spindle.

4; The combination of a main shaft, a gear wheel secured thereto, a spindle, a pinion secured to the spindle, a ball connected to the spindle, a bearing, a handle pivoted to the bearing and having a. socket to receive the ball so that on tilting the handle the spindle will be raised so as to move the pinion out lof mesh withv the gear wheel,

ratchet mechanism between the bearing and the spindle by which the spindle is turned on the lateral movement lof the handle, and a spring for returning the spindle to its normal position with the pinion in engagement with the gear wheel when the handle is released.

5. The combination of a main shaft, a gear wheel secured thereto, a spindle, a pinion secured to the spindle, a casing forming a bearing for the spindle and the main shaft, a bearing mounted so as to turn in the casing, a handle pivoted to the bearing having a socket, a ball mounted in the socket and attac-hed to the spindle, a ratchet ring mounted to turn with the spindle, a second ratchet ring mounted to turnv with the bearing, the teeth of one ratchet ring meshing with the teeth of the other ring, a spring carried by the spindle, and adapted to yieldingly press upon the ring carried by the bearing so that on reciprocating the handle laterally the spindle and main shaft will be moved in one direction only.

6. The combination in a car brake operating mechanism, of a main shaft, a gear wheel thereon, a spindle having a pinion meshing with the gear wheel, a casing in which the spindle and the shaft are mounted, said spindle having a forked end, a block mounted in the forked end, a ball having a stem adapted to the block, a bearing mounted to turn in the casing, a handle pivoted to the bearing and having a socket in which the ball is mounted, a ratchet ring secured to the spindle and a ratchet ring mounted in the bearing and free to move toward and from the ratchet ring carried by the spindle, a spring pressing upon said ratchet ring, and a spring to return the spindle to its normal position after it has been raised to disengage the pinion from the gear wheel.

7. lThe combination in a car brake operating mechanism, of a main shaft, a gear wheel thereon, a spindle having a pinion meshing with the gear wheel, a casing, a.

bearing mounted in the casing, ratchet mechanism between the bearing and the spindle, a handle pivotally mounted on the bearing and having a socket, a ball mounted in the socket and connected to the spindle, the handle having a flange fitting in a seat on the bearing when the handle is in its normal position so as to close the space within the bearing.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WALTER s. ADAMs.

Witnesses WVM. E. SHUrE, WVM. A. BARR.v

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C.

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