US1450366A

US1450366A - Hand brake

Info

Publication number: US1450366A
Application number: US559166A
Authority: US
Inventors: Stacy B Haseltine
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-05-08
Filing date: 1922-05-08
Publication date: 1923-04-03
Anticipated expiration: 1940-04-03

Description

Apr. 3, 1923.

s. B. HAsELTlNE HND BRAKE Filed May 8, 1922 By w Patented Apr. 3, 1923.

s'racY B. HAsEL'rINE, or CHICAGO, ILLINOIS, AssIGNoa 'ro WILLIAM H. MINER, OF

OHAZY, NEW YORK.

HAND BRAKE.

Application ala my s, 1922. serial no. 559,156.

To all whom it may co'lwem Beit known that I, STACY B. HASELTINE, a citizen of the United States. residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Hand Brakes, of which the following is a full. clear. concise, and exact description. reference being had to the accompanying drawings` forming a part of this specification.

, This invention relates to improvements in hand brakes.

An object of the invention is to provide a hand brake for railway cars of eicient and economical design .and so arranged .as to render it easy for the brakeman to operate the brake with one hand while holding on with the other to steady himself.

Other specific objects of the invention are to provide an improved releasing device and improved means for attaching the end ofthe brake chain to the drum.

In the drawing forming a part of this specification, Figure 1 is a vertical, sectional view in a plane perpendicular to the end wall of a car and corresponding to the section line 1-1 of Figure 2. illustrating my improvements as applied to the end wall of a gondola or other freight car. Figure 2 is a vertical. sectional view. .corresponding substantially to the section line 2--2 of Figure 1. Figure 3 is'a detail, sectional view. taken on the broken line of Figure l. And Figure 4 is a detail. sectional view` corresponding to the line 4-4 of Figure 2 and illustrating more particularly the means for attaching the end link of the brake chain.`

In said drawing, 10 denotes the end wall of a car to which my improved brake mechanism is adapted to be attached. In carrying out my invention, I employ what may be termed a housing, casing Vor bracket, designated generally by the reference character A; a rotatable chain-winding drum B; a ratchet wheel C; a carrier or hanger D; an operating lever E; a locking dog F; and a release lever G.

The housing or bracket A is preferably provided with an inner vertically extending wall 11 by which the bracket is secured to theend wall of the car. In addition. the

bracket A fis formed with a top wall '12' which is extended horizontally for a distance and then curved downwardly and -for wardly'as indicated at 12a so as to provide a hood or shield. for the operatingr parts within the bracket. In addition. the bracket 'A 1s formed with an integral end wall 13, an lntermediate partition 14 and anl end wall 15. In this connection. while I have shown the endwalls 13 and 1,5 as integrally formed with the remainder of the bracket, it will be understood that the end wall 15' may con'- stitute a part of ak casting separate from the remainder of the bracket and such modified construction is intended to be included with'- `in the term bracket or housing as herein used in the description and claims. The

-bracket is open at the bottom. as clearly shown in Figures 1 and 2- to provide the necessary clearance for the operating elements ymounted on the section 17 is the ratchet wheel C so that the latter rotates in unison with the member B'. The ratchet wheel C.

at the end nearest the cylindrical portion 16 of the member B. is of maximum diameter and cylindrical so as to provide Ia journal 18 rotatably mounted in a bearing 14 provided in the partition 14'. To the right of the section 18. the ratchet wheel C is of reduced diameter as indicated at 19 and the latter, at its righthand end as viewed in Figure 2, provides a bearing for one wing 20 of the oscillatable carrier D, the other wing 21 thereof being freely rotatable on the section 18 of the ratchet wheel. As best shown in Figure. 1, the

wings

20 and 21 are united at their outer ends by an arcuate web 22 which. when the parts are in their normal release position as shown in Fi re 1.. provides an additional weather shield for the operating parts. The ratchet teeth 23 of the ratchet C are located intermediate the wings '20 and 21 and adapted to cooperate `theredentallv7 I have provided the dog F which is pivoted on a stud 2G preferablym'ade 1ntegral with the end wall 13 of the bracket A, as'clearly shown in Figure 3. The dog F has a single tooth 2T adapted to cooperate with the same ratchet teeth 23 as does the operating paivl 24. The dog F is normally held in engagement with the ratchet wheel b v means of a suitable expansionspring 28 which is seated at its ends over small lugs on the back wall and dog F, respectively. To releasefthe dog F, the release lever G is provided, the same being pivoted on a rivet or other suitable pivot-forming` member 29l sustained b v the end wall 13 and partition 14 of the bracket casting A. Said lever G' has a handle proper 30 which extends do\vn.

wardly and outwardly away from the end wall of the car, in normal position of the parts` as shown best in Figure'l. On the' opposite side of the pivot 29, the lever G is provided with spaced short arms 31-31 which are slotted at their upper ends to provide vertically extending recesses 3(2 and within which are engaged the laterally extended ends of a pin 33 carried bythe dog F. In this manner, it will be observed that a loose toggle joint is effected between the lever G/and the dog F so that, when the brakeman pulls up'the outer end of the lever- G. the dog F willl be retracted from the ratchet wheel and furthermore a hi h leverage ratio is obtained which is an a vantage particularly where the teeth of the: ratchet wheel are undercut as shown in the drawing, inasmuch as, in pulling the dog F from the ratchet wheel, the latter must be advanced slightly "against the tension of the brake chain.

In order to attach the end'link 34 of the brake chain in a convenient and effective manner to the winding member, I preferablyy `employ the .following arrangement. Detachably mounted `on the squared section 17'` ofthe member B and up against the shoulder 35 provided at the end of the cylindrical section 16, is a plate 3'( havinga dependingl flange 38 with an 'opening 39 therethrough. The flange 38 .isj of lesser thickness than the `thickness of the main" part of the plate 37 so 'that a space is left betweeny the flange 38,and anothersmall plate 40 which is countersunk into a suit- 39.' With this arrangement, a separable ringA effect is obtained betweenthe

plates

37 and 40 by which* the end link 34-is attached when the finger 42 is inserted through thev link, as best shown in Figure 2.1' a

To assemble the parts, after the bracket A is riveted to the ,end' wall of the car, vthe hanger D is inserted within the chamber defined between the end wall 13 and partition 14. The ratchet wheel C is then slipped endwise through the bearing 14a and assembled with the hanger D. The plate 40 is next put in position in the recess 41 and the end link 34 hooked thereover, after which the member B is inserted longitudinally through the bearing 15a and the plate 3T telescoped Vthereover until all the parts are brought to the positionv best shown 1n Figure 2, To hold the parts in assembled position. a cover plate 43 is applied over the end of the member B and held in position by any vsuitable means such as the bolts and nuts 44.y

By arranging the member B so as to rotate about a horizontal axis parallel with' thel end -'wall of the car, the brakeman is enabled to grasp either the operating handle E or the release lever G'with his right hand and Apull up while standing on the usual step and'in this way exert greatforce. in

either applying the brakes or in releasing the i drum. .At the same time, the brakeman may steady'liimself by taking hold of the usual grab iron with his left hand, thereb minimizing danger of'injury, due to sud en giving away of any part or sudden change of speed of the ear.

I claim:

1. In. a hand brake mechanism, the combination with a bracket adapted to be secured vto a car wall; of a horizontallyextending chain-winding member rotatably supported in said bracket; ratchet means for rotating said memberstep by step in4 a winding direction; means preventing accidental rotation of said member in an unwinding direc-` tion; and means for attaching the end link of the vchain to said `member including, two elements relatively :longitudinally movable' lengthwise ofsaid member and having co"- operable interlocking parts, one of said parts having a finger extending through the lend link to thereby lock the latter between said! elements when the elements are assembled.

- 2. In a hand brake mechanism, the combination with av bracket adapted to'be secured toa car wall'g of a. .horizontally extending chain-winding -me'mber rotatably supported in saidbrack'et; ratchet means for rotating said member step by step in a winding direction; means preventing accidental rotation of said member in'an unwin-ding direction;

and means for.attaching the end link of the chain to said member' including, a platetelescoped'on said memberand another element mounted ongsaid member adjlagnt thereto, one rosaid elements being provided ,with a finger extending into the otherV element, said finger beingr adapted lto pass through said end link of the chain.

3. In a. handV brake mechanism, the combination with a bracket adapted to be secured to a car wall; of a horizontally` extending chain-winding member rotatably supported in said bracket; ratchet means for rotating said member step by step in a'winding direction; means preventing accidental rotation of said member in an unwinding direc-tion; and means for attaching t-he end link of the chain to said member including, a plate telescoped on'saidv member and having a radially extending flange, a second element telescoped on said member adjacent said first element. and a plate countersunk into said second element and having a finger interlocking with the first mentioned element, said finger being adapted to extend through said end link.

4. In a hand brake mechanism, the combination with a bracket adapted to be secured to a car; of' a member rotatably mounted on said bracket adapted, when rotated. to produce `tension on the brake chain; means t'or rotating said member step by step in a winding direction; and manually releasable means forpreventing accidental rotation of said member in an uriwinding`- direction including, a ratchet wheel rotatable in unison with said member. a dog cooperable with the ratchet wheel and pivotally supported on said bracket, a lever pivotally supported on said bracket, said lever being provided with an operating handle on one side of its pivot and an arm having loose toggle engagement with said dog.

5. In a hand brake mechanism, the combination with a bracket adapted to be secured to a car; of a member rotatably. mounted on said bracket adapted, when rotated, to produce tension on the brake chain; means for rotating said member step by step in a winding direction; manually releasable means for )reventing accidental rotation of said mem er in an unwinding direction including, a ratchet wheel rotatable in unison with said member, a dog cooperable with the ratchet wheel and pivotally supported on said bracket, a lever pivotally supported on said bracket, said vlever being provided with an operating handle on one side of its pivot and an arm having loose toggle engagement with said dog; and a spring yieldingly holding said dog in engagement with the ratchet wheel. (i. In a hand brake mechanism, the combination with a bracket adapted to be secured to a car; ot' a member rotatably mounted on said bracket about a horizontal axis and adapted, when rotated, to produce tension -to the end wall of' a car: of a chain-winding drum mounted on said bracket to rotate about a horizontal axis parallel to the end wall; means for rotating said drum step by step in a winding direction and including. a ratchet wheel and a gravity drop operating handle oscillatably mounted with respect to the drum; a locking dog pivotally mounted on said bracket to cooperate with said ratchet wheel; a spring normally influencing said dog to operative position with respect to said ratchet wheel; and a release lever pivotally mounted on said bracket about a horizontal axis and operatively connected with said dog, said release lever having a handle normally extending downwardly and outwardly from the bracket whereby said operating handle and release lever may be oscillated in planes perpendicular to the end wall of the car.

In witness that I claim the foregoing l have hereunto subscribed my name this :29th day of Apr. 1922.

STACY B. HASELTINE.

'itnesses CARRIE GAILING, ANN BAKER.