US1382551A - Brake - Google Patents

Description

6. V. ROTE.

BRAKE.

APPLICATION FILED APB- 26.1920.

' Patented J ne 21,1921.

3 SHEETS-SHEET 1.

aw l 61mm C. V. ROTE.

BRAKE.

APPLICATION FILED APR.26. 1920.

L .92 4 .mm. I E uww d3 m m a D WITNESS C. V. ROTE.

BRAKE. APPLICATION FILED A P'R.26, 1920.

82 51 j Patented June 21,1921;

3 SHEETS-SHE 3.

r I 2 9mm UNITED STATES PATENT OFFICE.

CHARLES V. RO'IE, 0F LANCASTER, PENNSYLVANIA, 'ASS IGNOP, 0F ONE-HALF TO E. W.

BROWN, OIE LANCASTER, PENNSYLVANIA BRAKE.

Application filed April 25, 1920.

To all wh am it may concern:

Be it known that I, CHARLES V. Born, a citizen of the United States, residing at Lancaster, in the county of Lancaster and State of Pennsylvania, have invented new and useful Improvements in Brakes, of which the following is a specification.

The present invention relates to improvements in brakes, particularly of the character employed for railway cars and of the type in which the shoe or braking surface is removably connected with the head or body of the brake.

One of the objects of the invention is to provide a brake in which the shoe and head may be separated, by a lateral sliding movement of the shoe so that it will not be necessary to disconnect the brake from its supporting means or move it to a relatively great distance from the wheel on which it is intended to act to effect such separation.

Another object of the invention is to provide a brake of the character referred to in which the shoe and brake head are directly connected by a key in such manner that even if the shoe is worn completely through there is no danger of the separated portions thereof becoming accidentally detached and fall ing to the ground.

A further object of the invention is to provide means by which the standard M. C. B. brake head may be readily equipped with means permitting the brake shoe to be applied by a lateral sliding movement. With the regular or standard M. C. B. design of head and shoe the latter can only be sep arated from the head by a forward move ment, or movement away from the head and toward the wheel with which the brake coacts and, therefore, it is necessary to effect a considerable separation of the wheel and brake before a shoe can be removed or replaced. By the present invention, however, an adapter is provided which can be readily attached to a head of M. C. B. design and which will provide for the positioning or removal of a shoe by a simple lateral sliding movement.

The foregoing and other objects of the invention are accomplished by the construction illustrated in the accompanying drawings, in which:

Specification of Letters Patent.

.key, iereinafter referred to.

Patented June 21, 1921.

Serial No. 376,581.

Fig. 2 is a face view, with the shoe removed;

Fig. 3 is an elevation of the opposite side of the brake from that shown in Fig. 1;

Fig. 4 is a rear elevation of the shoe;

Fig. 5 is a sectional view on the line 55 of Fig. 1;

Fig. 6 is an elevation of another embodiment of the invention;

Fig. 7 is a face View of the part shown in Fig. 6 with the shoe removed.

Referring to the drawings, and particularly to Figs. 1 to 5, inclusive, 1 designates the head or body of the improved brake which, as shown, is of the standard M. C. B. design. In this type or form of head the forward surface thereof is provided with'a plurality of forwardly extending lugs or projections. The intermediate projections 2 3, extend transversely across the face of the head and are provided with suitable openings 4, to receive a looking or securing The end or terminal projections on the face of the head are each divided into two sections 5, 5 by longitudinally extending slot or groove 6, and the shoe commonly employed with such a head is provided with lugs adapted to fit within said grooves 6, as well as with a lug or lugs that extend transversely of the head in the spaces between the lugs or projections 2, 3, and the terminal lugs on the head. Therefore, in order to separate a shoe from its head, or to position a new shoe on a head, it,

is necessary to move the shoe forwardly from the head to enable the end lugs thereon to clear the terminal lugs 5, 5 This necessitates moving the brake to a considerab e distance from the wheel and adjustment of the brake supporting devices .is necessary which consumes considerable time.

In the embodiment of the invention illustrated in Figs. 1 to 5, inclusive, the brake head 1 is provided with;an adapter which comprises a metal frame including side members 7, 8, end members 9, 10, and intermediate transverse cross pieces or sections 11, 12. Said sections of the adapter are all preferably formed integral and it will be seen that the members 7, 8, 11 and 12 thereof, fit about the intermediate lugs 2, 3, on the brake head, while the end members 9, 10, lie adjacent the terminal lugs 5, 5 of the head. Each of said cross members 9, 12, 11, 10 of the adapter is provided in its rear face with a notch, or an aperture is formed therethrough, to receive the locking key by which forwardly from the plane of the forward face of the brake head and portions 14, 15, thereof over-lie said surface of the head and serve as abutments to limit lateral sliding movement of the brake shoe in one direction. The other side member 8, of the adapter is so shaped that the portions thereof between the cross members 9, 12,-12, 11,and 11, 10, are substantially flush with or slightly in rear of the plane of the forward surface of the head so that the adapter provides a plurality of sockets extending transversely of the head and open at the outer side thereof into which the lugs on a brake shoe may be freely introduced by a lateral sliding movemcnt of the shoe. The inner ends of the sockets adjacent the ends of the brake head are closed or partially so by the aforesaid abutments 1 1, 15. i

v Owing to the position in which the brake head stands and the manner in which the adapter is interfitted therewith, there is little possibility of said parts being accidentally displaced even if the shoe, hereinafter referred to, is removed. However, to in sure that the adapter will not be accidentally disconnected from the brake head a suitable tie rod may be passed through apertures formed in lugs 16, 17, and the intermediate web of the brake head, suitable securing means, such as cotter pins being provided to retain the rod in position.

The shoe 20, of the brake is provided on its rear face with a plurality of lugs 21, 22, 23, adapted to severally fit fairly closely within the sockets formed by the members of the adapter when applied to the brake head and which are arranged between the lugs on the brake head. As shown in at, these lugs do not extend continuously across the rear face of the shoe but each is composed of two sections connected by a member 24, which provides a passage adapted to aline with the grooves 6, at the ends of the brake head and the passages in th intermediate lugs on the head and through the transverse members of the adapter so that when the shoe is in position on the head, a key 25, may

be passed longitudinally therethrough to se-' cure the several parts together. It will be seen that this key engages directly with the shoe the adapter and the brake head and the several members on these parts with which the key engages are so closely related that even if the shoe'is broken transversely, the sections thereof will not be permitted to fall or become detached from the head.

It will be seen that the adapter may be readily applied to the ordinary standard hi. C. 13. brake head and that when in position a shoe of the character shown can be easily positioned on the head or withdrawn therefrom by a lateral sliding movement so that it is unnecessary to withdraw the brake to any considerable distance from the car wheel to remove or replace a worn shoe. It is merely necessary to remove the key 25, after which the shoe can be drawn directly from the head by a sidew'ise movement.

The side wall or member 8, of the adapter is preferably provided with a laterally detlected substantially horizontal portion '8, opposite the central socket or portion, and this is intended to serve as a fulcrum for a short lever or bar which may be introduced beneath the member 2 of the central lug on the shoe to overcome any wedging action that may interfere with the free lateral sliding movement of the shoe.

While one of the principal objects of the invention, as hereinbefore stated, is to provide means by which the standardM. C. B. design of brake head'may be adapted to have a shoe positioned thereon or removed therefrom by a lateral sliding movement only it will be evident that some of the objects of the present invention may be attained if the adapter is an integral part of the brake head. Such a construction is illustrated in Figs. 6 and 7 in which the head 1 is provided on its forward face with lugs 30, 31, 32, 33. Between the lugs 30, 31, and 32, 33 are, respectively, formed abutments 35, 36, which 100 serve to limit lateral sliding movement of the lugs 21, 23, on the brake shoe 20. As

shown, the terminal or end lugs 30, 33, are provided with longitudinal grooves '37, so that if desired, a shoe of the form commonly employed with the standard M. C. B. design head may be used.

it will be seen thatby the invention the shoe may be reversed in case it has become unduly worn.

it is thought that the manner of using and the importance of the invention will be understood from the foregoing description taken in connection with the drawings.

Vi hile the drawings illustrate and the 115 foregoing description refers particularly to embodiments of the invention which are, at

present, considered the preferred forms, t

provided with spaced projections on its rear face adapted to enter the spaces between the projections on the face of the head and to permit the shoe to be bodily moved laterally to and from engagement with the head, such lateral engaging movement being limited by said abutments, and a removable key extending through the projections on the head and shoe and normally preventing separation thereof.

2. A brake comprising a head adapted to be connected to a suitable beam and provided on its forward face with a plurality of spaced, forwardly extending, projections, each having an aperture therein, a shoe provided on its rear face with a plurality of apertured projections spaced longitudinally of the shoe to interengage with the projections on the head, whereby the shoe may be applied to or removed bodily from the head by a lateral sliding movement, means on the head for limiting such lateral movement of the shoe in one direction and causing the apertures on the projections thereon to aline with the apertures in the projections on the head, and a removable key inserted in the apertures in said projections to connect the head and shoe.

3. A brake comprising a head adapted to be connected to a suitable beam and provided on its forward face with a plurality of apertured lugs and 'at one side, between two of said lugs, with a laterally projecting fulcrurn surface, a shoe having on its rear face a plurality of apertured lugs spaced to cor respond to the spaces between the lugs on the head, whereby the shoe may be moved into and from en agement with the head by a lateral sliding movement only, abutments on the head cooperating with some f the lugs on the shoe for limiting such slldin movement of the shoe in one direction and insuring alinement of the apertures 1n the lugs thereof with the apertures 1n the lugs on the head, and a key extending longitudinally through the apertures in the lugs in the head and shoe and connecting said parts.

l. The combination with a brake head having on its forward face a plurality of forwardly extending projections, of an adapter comprising a frame fitted tothe head about certain of said projections and providing a plurality of sockets that are open at one side of the head and closed at the opposite side, a shoe having on its rear face a plurality of lugs adapted to be moved to and from a position within said sockets by a lateral sliding movement, and a common means engaging the projections on the head, the adapter and the lugs on the shoe.

5. The combination with a brake head having on its forward face a plurality of forwardly extending projections, the proj ections at the ends of the head being slotted or formed with a key way and the intermediate projections having apertures therewill aline with the key ways and apertures of the head and the apertures in the cross bars of the adapter by a lateral sliding movement, and a key adapted to extend through said key ways and alined apertures to connect the several parts.

6. The combination with a brake head, of an adapter detachably connected to said head and provided on the face thereof with a plurality of sockets open at one side only of the head, a shoe having on its rear a plurality of lugs adapted to be positioned within or withdrawn from said sockets by a laterally sliding movement, and means connectin said shoe to the head.

The combination with a. brake head, of an adapter detachably connected to said head and provided on the face thereof with a plurality of sockets open at one side only of the head, a shoe having on its rear a plurality of lugs adapted to be positioned within or withdrawn from said sockets by a laterally sliding movement, and a locking key extending longitudinally of the shoe and the face of the head and directly engaging the head, adapter and shoe.

8. The combination with a brake head including a plurality of lugs projecting forwardly from its face, the end lugs being slotted and the intermediate lugs provided with apertures in alinement with said slots, an adapter comprising a frame surrounding said intermediate lugs on the head and abutments positioned within the spaces between said intermediate and end lugs of the head adjacent one side of the head, a shoe having on its rear a plurality of lugs adapted to be inserted in or withdrawn from the sockets formed between the lugs in the head by a lateral sliding movement, which movement is limited in one direction by said abutments, and means for holding the shoe in position on the head.

9. A frame adapted to be appliedkto athe transverse members, wherebv when the frame is applied to a brake head there will be provided a plurality of sockets, one of which opens through the face and one side only of the head, so that a shoe may be applied to or Withdrawn from the brake'head bv a lateral sliding movement, which movement will be limited in one direction by the wall of one of said sockets formed'by one of the sides of said frame.

10. A frame adapted to be fitted about the intermediate lugs of a brakeheadand including side members only one of which is 1 adaptedto project as far as the face of the head, between saidintermediate lugs and the end plugs of the head, whereby it is adapted to provide sockets to receive lugs ona shoe and permit said shoe tobe applied to or withdrawn from the head by a lateral sliding movement, the portions of said frame projeotingbeyond the surface of the head between the intermediate and end lugsof the head constituting abutments to limit lateral movement of the shoe in one direction.

In testimony whereof I have hereunto set CHARLES V. ROTE.

-my hand.

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