US1300350A

US1300350A - Hand-brake for railway-cars.

Info

Publication number: US1300350A
Application number: US18720317A
Authority: US
Inventors: Charles E Dath
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-08-20
Filing date: 1917-08-20
Publication date: 1919-04-15
Anticipated expiration: 1936-04-15

Description

C. E. DATH.

HAND BRAKE FOR RAILWAY CARS.

APPLICATION FILED AUG-20| 1917.

Patented Apr. 15,1919.

Hum/1% Ilm/ WI TNESSES:

nm amis news L miamumv., msnmamn. n, 1

'UNITED STATES PATENT GFFIQE.

CHARLES E. DATH, or CHICAGO, ILLINOIS, AssIGNoR'To WILLIAM H. MINEH, orv

CHAzY, NEW YORK. l

HAND-BRAKE Fon. RAILWAY-CARS.

To all whom t may concern: l Y

Be it known that I, CHARLES E. DATH, a citizen of the United States, residing at Chlcago, in the county of @ook and State of Illinois, have invented a certain new andV useful Improvement in Hand-Brakes for Railway- Cars, of which the following is a full, clear, concise, and exact description, reference being had vto the accompanying drawings, forming a partof this 'specification.

- l This invention'relates to improvements in 'hand brakes for'railway cars.

The object of the invention is to provide a' simple and efficient hand brake adapted more particularly for railway cars and wherein is employed a casing having integral bearings therein for thejournals on the ends of a chain winding drum to thereby avoid the use of bolts or other equivalent means for fastening the parts together and at the saine time preventing possibility of binding of the rotatable parts.

In the drawing'formingV a part of this specification, Figure 1 is aV side `Velevation, parts being broken away and other parts shown in section, vof a brake embodying my` improvements. Fig. 2 is a vertical, sectional View', taken 'on the line 2-2 ofFig. 1 and showing my improvements as applied to a wall of a car. Fig. 3 is a' vertical, sectional view, takenon the line 3-3 of Fig. 2. And Fig. 4 is a horizontal sectional view, taken on the line 4 4 of Fig. 1.

In said drawing, 10 denotes the wall of a car to which my improved hand brake is adapted to be applied. The improved brake, as shown, comprises, broadly, a rotatable chain winding drum A; a chain B; pawl and ratchet mechanism C; and a casing or housing D.

The housing or casing D, as shown, cornprises a member which is of substantially cylindrical form having a vertical inner wall 11, an outer vertical wall 12 and a cylindrical side wall 13. The inner wall 11 is provided with suitable ears 14-14 by which the casing is adapted to be secured to the car wall, as by rivets 15. The casing is open at the top between the inturned horizontal flanges 16--16 (see Fig. 3) for the purpose hereinafter specified. The

end walls

11 and 12 of the casing are provided with vertical slots or

grooves

17 and 18 which extend clear to the top and are provided at their bottoms ldrum binding in its rotation.

slieeication of Lettrsrateat. Patented Apr. 15,1919.

Application led'August 20, 191,7..` Seria1No. 187,203. j

with curved bearings 19and 20for the

short trunnions

21 and 22 lof the chain winding member A. As will be apparent, the chain winding member A is inserted through the top and is rotatably supported within the casing and due to' the fact that the walls 11 Aand 12 of theV casing are Yformedintegrally,

there is no danger of the chain winding The drum A is shownla's prol ,'ded with a conical section 23 'near its outer end, said section having a radially, extended hook 24 over which the upper link of the chain B is adapted to be attached.` The drum A is also provided with a flange 25 in va plane just outside of the hook 24 to thereby force the ch'ain inwardly as it is wound around the drum Iand due to thelong larm of the hook and the conical section 23 of the drum, the slack in the chain willl be taken up relatively rapidly during the earlyvrotation of the drum, as will be obvious. Outside of the flange 25, the drum member A is prefoperating lever28 is adapted to cooperate.

The lever .28 is pivotally mounted on a stud 29 carried at the bottom of a supporting link 30, the latter being'l'oosely seated on thejonrnal 22. As most clearly shown in Fig. 1, the pawl 27 is normally disengaged from the ratchet wheel 26 due to fthe lever 28 assuming a vertical position under the influence of gravity but, -as the lever 28 is actuated in the direction indicated by the arrow w, as shown in Fig. 1, the drum will be rotaited. In order to permit the movemen-ts lof the lever 28, the side -w-all of the casing is recessed, as indicated at 31. To prevent the drum from rotating backward after the chain has been wound, a locking dog 32 is provided which cooperates with the ratchet wheel 26, said dog 32 being pivoted on a stud 33 formed integrally with the end wall 12. The handle 34 of the dog extends through a suitable opening 35 in the casing and said handle 34 is made heavy enough so )as to maintain the -d'og normally in engagement :with the ratchet wheel 26 under the influence of gravity. The pawl 32 is .prevented `from lateral movement with respect to the stud 33 by the liange 25 of the drum A, as will be apparent from an inspection of Fig. 4.

In assembling the parts, the link 30 and lever 28 are mounted on lthe drum A after which the latter is dropped into the casing, the dog 32 having first been inserted 'Within the casing. To maintain the drum and associated parts Within the casing, a cover plate 36 is finally applied to the top of the casing and secured thereto `b any suitable means, such as thev rivets 3 As clearly shown in Fig. 2, the cover plate 35 is pro vided with integral depending arms 38-38 Whichextend do-Wnthe slots 17 and 18'and positively preventr lifting of the drum and f associated parts.

' bearings -attheir lower ends, the case fbeing adapted -Lto besecured to a car by mean-s of `Iolaim:

1. I-n a brake, thecombination with a `casing Lhaving Ian opening in the top and provided y,with `inner and outer integrally formed end Walls and side Walls, said end,

vvallls being provided on the inner faces with vertically extended slots having journal its said :inner Wall, of a chain Winding-drum having journals atits ends, said d-rufm being insertible `vertically through said open-` ing .in the top of vsaidtcasing and adapted to :have its journal ends supported by said bearings, 'andgpawfl and :ratchet mechanismA for ,rotating said drum, the bottom of sai-dY Y casing being slotted to accommodate the chain Aandparts of said rpavvl and natchet mechanism. ,i

2. In a Iloralse-of the character fdescri'bed, fthe combination-With a substantially cylindrical ,casing fhaving jintegrally formed in-` ner and outerrend Walls and open -at the top, the casing being "provided With integral \,O0pies of this lpatent may he obtained'for 'gravity controlled vpavv-l-operating Alever pivotally suspended Yfrom said-link and yadapted to cooperate with said ratchet Wheel. f

,8. In a brake, the combination With a .generally cylindrical casing having inner and outer integrally formed vertical end iWalls Ianda curvedside Wall, said end wialls being provided on the inner faces with verticalllyy extended slots having journal bearings at their lower ends and thecasing being open at the'top, of Va chain Winding n drum having journals iat its ends, said dro-1n being insertible vertically through the top of said casing and adapted to have its j ournal ends sup-ported by :said bearings, plavvl Y and ratchet mechanism for rotating said 'Y drum, and a cover plate 'adapted to be fastened to the top of the casing and having means thereon extending into said slots for positively maintaining the drum in proper position, Said casing having also integral,

ears at its inner end by which to be secured to -a car Wall. f

In 'witness that I claim the foregoing I have hereunto siub'scribed my name this 29 day o-f July, 1917.

CHARLES E. DATH.

it is adapted five cents each, by addressing vthe Commissioner of Patents, Washington, D.C.