US474615A

US474615A - William b

Info

Publication number: US474615A
Authority: US
Publication date: 1892-05-10
Anticipated expiration: 1909-05-10

Description

No Model.) 2 Sheets-Sheet 1.

W. B. TURNER. POWER TRAN$MITTING DEVICE FOR GAR BRAKES.

No'. 474,615. Patented May 10, 1892.

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(No Model.) 2 Sheets-Sheef 2 W. B. TURNER. POWER TRANSMITTING DEVICE FOR GAR BRAKES.

No. 474,615. Patented May 10, 1892 M Ma NITED STATES ATENT ,FFICE.

WVILLIAM B. TURNER, OF BOSTON, MASSACHUSETTS, ASSIGN OR TO THE TURNER-BEARD AUTOMATIC BRAKE COMPANY, OF NEW YORK, N. Y.

POWER-TRANSMITTING DEVICE FOR CAR=BRAKES.

SPECIFICATION forming part of Letters Patent No. 474,615, dated May 10, 1892.

Application filed June 4,1891. Serial No. 395,039. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM B. TURNER, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Devices for Transmitting Power, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

As a means for braking, retarding, or slowlng down trains a brake mechanism has been provided which is operated'by the inwardlymoving draw-bars, so that as the brakes are applied to the locomotive the closing up of the train causes the brakes of the cars to operate.

This invention has for its object to improve the construction of. the means employed for transmitting the motion from the inwardlymoving draw-bar to the brake mechanism; and my invention comprehends the employment of a fixed support having 011 one side of it a block which is moved longitudinally by the draw-bar either directly or indirectly, an operating member moved by said block and herein shown as carrying a series of rollers, and a guide at one side of the said operating member for directing its movement.

Figure 1 represents a plan view of a portion of a car-frame, showing adraw-bar and means embodying this invention for transmitting inward motion of the draw-bar to the brake mechanism; Fig. 2, a longitudinal section of the transmitting device shown in Fig. 1; Fig. 3, an under side view of the transmitting de- Vice, and Fig. 4 an end View of the frame or casting which supports the operating parts of the transmitting device.

The draw-bar a, the followingplates a a arranged in suitable supports and separated by springs a and the strap a are all of usual construction.

The transmitting device located adjacent to the draw-bar, by which its inward motion is transmitted to the brake mechanism, (not herein shown,) consists of a suitable supporting-frame A, adapted to be bolted to the beams B B, the base of the said frame being slotted, as at c, to receive the movable parts to be described. A block 0, placed on one side of the support A and movable longitudinally between guides g g, projects upward and lies in the path of movement of the draw-bar a, and

a plate 0 is placed on the other side of said support, being pivotally connected with the block 0 by a bolt 0 which passes through the slot 0. The plate 0' is located in the guideway 0 one side of which presents a stationary guide having an inclined portion f and a straight portion f. A plate d is secured to the under side of the plate 0, it being fitted onto a diagonally arranged projection cl, formed on the under side of the said plate 0. The plates 01 and c, separated from each other a short distance, each have a slot or elongated opening, which register with each other and into which are placed, as herein shown, four parallel rolls (1 (see dotted lines, Fig. 3,) and a cap or plate (1 is secured to the under side of the plate d by a pin (1 which overlaps the ends of said rolls and keeps them in proper position. The plates 0 andcl constitute the operating member. A bell-crank lever is pivoted at e to the supportingframe A, one arm of the said lever, as a, being connected by a suitable connectingrod c with any usual or suitable brake mechanism, (not herein shown,) and the other arm, as e being arranged diagonally with relation to the path of movement of the operating member and occupying a position between the plates 0' and d thereof and bearing against the end roll of the series of rolls (1 When it is desired to apply the brake mechanism, thebrake on the locomotive will be applied, and as the cars close together the drawbars are pressed inwardly, striking the block 0 and moving it longitudinally or in a direct line, as shown by the arrow, Fig. 2, and said block carries with it the operating member. As the operating member 0' d is thus carried 0 by the longitudinally movable block it is caused to move on its pivot by the inclined guide portion f in the direction of the arrow,

Fig. 3, and bearing against the arm 6 of the bell-crank lever turns it on its pivot. When 5 the operating memberhas been carried by the block a a short distance, it will have passed by the inclined portion f and will then bear against the straight portion f, and as this portion f is parallel to the direction of move- I00 ment of the .block 0 and also to that side of the arm a which isengaged by the operating member the latter may be moved farther by said block and have no elfect on the bell-crank lever exceptto hold itin its abnormal position. By this form of guide ff it will be seen that the bell-crank lever will be moved its full distance to set the brake on a very short inward movement of the draw-bar. A spring 0 is provided, one end of which bears against the block 0 and the other end against a fixed projection on the supporting-frame A, the said spring serving to restore the block 0 to its normal position.

I do not desire to limit myself to the employment of a bell-crank lever as the only means of transmitting the motion to the brake.

I claim- 1. In a device of the kind described, asupport or frame, as A, a block thereon'movable longitudinally by a draw-bar, an operating member connected to said longitudinally-movable block and rollers carried by it, a guide on the support having an inclined portion f,

, against which the rollers act-,anda bell-crank lever, one arm of which is engaged or acted upon by said rollers, substantially as described.

2. In a device of the kind described, asupport or frame, as A, ablock o thereon movable longitudinally by a draw-bar, an operating member pivoted to said longitudinally-movable block and rollers carried by it, a stationary guide having an inclined portion f located at one side of said operating member and with which the rollers cooperate, and a bell-crank lever, one arm of which is located at the other side of said operating member and is acted upon by the rollers, substantially as described.

3. In a device of the kind described, a support or f ram e, as A, ablock c thereon movable longitudinally by a draw-bar, a pivoted operating member and rollers carried by it, aguide located at one side of the operating member, having an inclined portion f and a straight portion f, and a bell-crank lever, one arm of which is located at the other side of the said operating member which is acted upon by the rollers, substantially as described.

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

\VILLIAM B. TURNER.

Witnesses BERNIOE J. NoYEs, EDWAR F. ALLEN.