US1024265A - Brake-shoe. - Google Patents

Description

J. J. KINZER.

BRAKE SHOE.

APPLICATION FILED FEB. 27, 1911.

1,024,265. Patented Apr. 23, 1912.

f I E. l

Brake-Shoes; and I following to be a full, clear, and exact deimages,

To all whom it may concern:

Be it known thatI, JoHN J, KINZER, a resident of .Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in do hereby declare the scription vthereof.

y Invention relates to brake-shoes, and has special reference to the means for connecting the shoe to the head or hanger.

The object of my invent-ign/is to provide a cheap, simple and eflicient form of a brake-shoe inwhich the connecting lug for 1 supporting the shoe on the head or hanger will be formed separate from the back of the shoe, will be sulficiently ductile for the driving of the locking key to place, and will provide for the proper grip or hold on such key when'in place.

To these ends my invention consists, generally stated, in the novel struction and combination ticularly pointed out in the claims.

To enable others skilled in the art to which my invention appertains to construct of a portion of the shoe. view of the shoe.

' Like symbols of reference herein indicate bending in suitable dies and use my improved brake-shoe, I will describe the same more fully, referring to the accompanying drawing, in 'which-- Figure I is a ,side elevation of my improved brake-shoe showing the head or hanger connected thereto. larged perspective view ployed. ,Fig. 3 is a longitudinal section like ing. 7

As illustrated in the drawing, my improved brake-shoe comprises an inclosing casing 1 and a filling 2 inserted therein, which casing is preferably'made of sheet parts in each of the figures of the drawor plate metal having a substantial degree of strength and ductility,,such as steel, and

it is formed, preferably by pressing or into a structure having integral back, side and end' walls, as well as being open at its front and curved substantially in accordance with the periphery of the car-wheel.

porting lug 3, through which the su brake-sl foe is connected to the brake-head ,or hangera',

as hereinafter described, is

Specification 01 Letters Patent.

' a strip of sheet metal while such lug will arrangement, con- I of parts, as here-- inafter more specifically set forth and par- Fig. 2 is an en-- of the lug eIn- 4 is a back -Patented1apr.23,:il91l2 Serial No. 611,142.

fixed to the back 1 of the casing 1, which lug 1s formed from sheet or late metal, such as steel, and sufliciently so to provide for its being ductile, as well as maintaining the strength required in the same. This lug 3 is preferably bent or ressed to hollow or inverted trough shape 1n suitable dies, from and at a right angle to its length, which provides such lug with open ends, to form the bod portion 4 and supporting legs or standards 5, which legs are inclined so as to extend out from the side portions 4:. on said bodypo'rtion. The legs 5 on the lug 3 are cut away ontheir outer side edges to form the shoulder 6, with the inner ends 7 beyond the same, so thatsuch ends can be passed through slots 8 in the back wall 1 of the casin 1 and turned over thereon and against said wall, be supported on said caslng by said turned ends and by the shoulders 6 resting against said back wall. The body portion 4: of the lug 3 is dished its top portion 4:"

or bent inwardly along and from the open ends of said lugto form the spring bearlng portion 9 centrally of the same, which acts as a bearing face and connects with the rounded raised portions 10 at each side of the same and with the side portions 4' and legs 5.

In the use of my mproved brake-shoe theback wall 1' of the casing 1 iaprovided with a lip 11 extending along each end Wall of the casing and having a central raised portion 12 in said back wall extending in wardly from said lips and adapted to form bearing surfaces 13 on each "side of said raised portion and by the same and said lips, so that when the brake-head or hanger a of the ordinary approved type is placed against said back the two bearings b on the ends of such hanger will abut against said surfaces, while the intermediate bearings 0 on said hanger will fit on either side of .the lug 3 and abut against the said back. When the brake-head or hanger a is thus set in position on the back 1 of the casing 1, the usual key 65 connects the shoe and hanger together by being passed between the bearings 12 on each end of such hanger, underthe central spring bearing 9 on the lug 3, and between the legs 5 on said lug and intermediate bearings 0 on said hanger, so that said key will thus bear against the spring bearing 9 on said lug and against the cross bearing a between each of the cient resiliency so as to retain its hold upon bearings c on the said hanger. the key, and thus prevent the key from be-, 'The rubbing or frictional action of the coming loose and umping or working out, brake-shoe upon the wheel is exerted by which would unlock the shoe from the 5 the frictional member, which consists of hanger and allow the shoe and key to fall 70 the filling 2 of any suitable material, such down onto the road-bed or rail. as cast iron or other metal or composition What I claim as my invention and desire. of matter specially prepared for the purto secure by Letters ,Patent ispose, and of such character as to. exert 1; In combination with ahanger and its 7 1o proper and sufficient friction upon .the peconnecting key, of a brake shoe having a 75 riphery of the wheel without the imposition lug of sheet metal fixed to the back of said of undue or excessive pressure thereon, shoe for being connected to said,hanger by which compositions are of a character said key to support said shoe, said lug being familiar to those skilled in the art. The provided with open ends, and an inwardly filling 2 can be either cast into the casing extending spring bearing on said lug for be- 30 1 when set in a mold or inserted in the ing adapted to engage with and conformto casing under pressure and retained in posisaidkey. I tion after hardening by the walls of such 2. In combination with a hanger and its casing. I conn'ectingkey, of a brake shoe having a lug It will thus be seen that my improved ofsheet metal fixed to the back of sald shoe 35 brake-shoe will have its lug for supporting for being connected to said hanger'by said the brake-head or hanger held to thecasing ke to support said shoe, said lug being proof the shoe in a rigid manner and will not vi ed with open ends, legs on the sides of be liable to be broken off or get out of said lug and around said key for engaging shape by any sudden blow or jar upon the with and extending out from said back, and 90 shoe or head and thereby prevent the shoe an inwardly extending spring bearing, on from falling with great 'danger of derailsaid lug for being adaptedto engage with ment to the train. In cases of solid cast and conform to said key. I lugs and lugs which are cast with the shoe 3. In combination with a hanger and its and provided with a strip of steel in and be-. "connecting key, of a brake shoe having a lug 95 tween, the same for reinforcement, the of sheet metal fixed to the back of sand shoe former are liable to break and there is great for beingconnected to said hanger by said danger of such strips or reinforcement in the 1 key to support said shoe,- said lug being prolatter case crystallizing by being embedded. vided with open ends, inclined legs on the in the molten metal for forming the shoe, sides of said lug and around said key for 100 I which will render such lug not only useless, engaging with and extending out from sea but dangerous when the shoe is used on shoe back, and an inwardly extending spring heavy trains. It will also be seen that by hearing (on said lug for being adapted to my improved brake-shoe the usual rigidness engage with and conform to said key.

in the hanger supporting lug on the shoe is 4. In combination with a hanger and its 105 overcome and the lug employed will provide connecting key, of a brake shoe having a for a certain amount of softness and ductillug of sheet metal fixed to the back of said ity therein to enable it to conform at all shoe for being connected to said hanger by times a) the bearing of the key upon the said key to support said shoe, said lug being same when such key is in position between provided with open ends, legs on the sides 11 the hanger and shoe, and yet enable suflicient of said lug and around said key for enstrength inthe lug for the purpose for gaging with and ext-ending outfrom said which it is being used, whilesuch lug will back, said legs being adapted to be passed also permit the use of a' light material in through" slots in said back and turned formln the same, which will thereby render against the same, and an, inwardly extend: it capa le of being bent or pressed into ing' spring bearing on said lug for being shape without the use of heat and thus adapted to engage with and conform to said overcoming the danger of crystallization, as key. well as enablin it'to be bent by the bearing 5. In combination with a hanger and its 85 0f the key an thus overcome all liability connectingkey, of a-brake shoe having a of it breaking or becoming distorted to the lug of sheet metal fixed to the back; of said detriment of injuring or. breaking the same, shoe for being connected to said hanger by the shoe or the hanger. It will further be said key to' support said shoe, said lug being seen that my improved brake-shoe will enprovided with open ends, inclined legs on 60 able the lug to give to the extent desired the sides of said lug and around said key for when the locking key is driven" to/place engaging with and extending out from said against the sameb reason of the softness or shoe back, said legs being adapted to be ductility of said 11g, and in case of any passed through slots in said back and turned wear occurring between the brake-head or against the same, and an inwardly extend- 65 hanger and the shoe such lug will havesufiimg spring bearing on said lug for being adapted to engage with and conform to said connecting key, of a brake shoe having a lug of sheet metal fixed to the back ofsaid shoe for being connected to said hanger by said key to support said shoe, said lug being provided with open ends, and an inwardly projecting spring bearing on the top portion of said lug extending from and between said ends for being adapted to engage with and conform to said key.

7. In combination with a hanger and its connecting key, of a brake shoe having a lug of sheet metal fixed to the back of said shoe for being connected to said hanger by said key to support said shoe, said lug being provided with open ends, legs on the sides of said lugs and around said key for engaging with and extending out from said back, and an inwardly projecting spring bearing on the top portion of said lug extending from and between said ends for being adapted to engage with and conform to said key.

8. In combination with a hanger and its connecting key, of a brake shoe having a lug of sheet metal fixed to the baekof said shoe for being connected to said hanger by said key to support said shoe, said lug being provided with open ends, the sides of said lug and aroundsaid key for engaging with and extending out from said back, and an inwardly projecting spring bearing on the top portion of said lug extending from and between said ends for being adapted to engage with and conform to said key.

9. In combination with a hanger and its,

connecting key, of a brake shoe havinga lug of sheet metal fixed to the back of said shoe for being connected to said hanger by said key to support said shoe, said lug being provided with open ends, legs on the sides of said lug and around said key for engaging with and extending out from said back, said legs being adapted to be passed through slots in said back and turned against the same, and an inwardly projecting spring bearing on the top portion of said lug extending from and between said ends for being adapted to engage with and conform to saidkey.

10. In combination with a hangerand its inclined legs on k connecting key, of a brake shoe having a lug of sheet metal fixed t0 the'back of said shoe forv being connected to said hanger by said'key to support said shoe, said lug being provided with open ends, inclined legs on the sides of said lug and key for engaging with and -extending out from said back, said legs being adapted to be passed through slots in said back and turned against thesame, and an inwardly pro ecting spring bearing on the top portion of said lug extending from and between said ends for being adapted to engage with and conform to said key.

11. In combination with a hanger and its connecting key, of a brake shoe having a lug of sheet metal fixed to the back of said shoefor being connected to said hanger by said key to supportsaid shoe, said lug being provided with open ends, legs on the sides of said'lug and around said key for engaging with and extending out from said back, said legs being adapted to be passed through slots in said back and turned against the same, a shoulder on said' legs for resting against said back to fix said lug to said back, and an inwardly projecting spring bearing on the top portion of said lug extending from and between said ends for being adapted to engage with and conform to said 12. In combination with a hanger and its connecting key, of a brake shoe having a lug of sheet metal fixed to the back of said shoe for being connected to said hanger by said key to support said shoe, said lug being provided with open ends, inclined legs on the sides of said lug and around said key for engaging with and extending out from said back, said legs being adapted to be passed through slots in said back and turned against the same, a shoulder on said legs for resting against said back to fix said lug to said back, and an inwardly projecting spring bearing lug extending from and between said ends for being adapted to engage with and con form to said key.

In testimony whereof, I, the said J OHN J.

KINZER, have hereunto set my hand.

- JOHN J. KINZER. Witnesses:

T. B. HUMPHRIES,

J. N. COOKE.

on the top portion of said

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