US1019583A

US1019583A - Brake-shoe.

Info

Publication number: US1019583A
Application number: US61680111A
Authority: US
Inventors: Charles W Ambrust
Original assignee: SYDNEY STEIN
Current assignee: SYDNEY STEIN
Priority date: 1911-03-25
Filing date: 1911-03-25
Publication date: 1912-03-05
Anticipated expiration: 1929-03-05

Description

C. W. ARMBRUST.

Patented Mar.'5, 1912.

2 SHEETS-SHEET 2.

` To all whom 'it may concern l so as well.

` my invention.

UNITED sTATEs PATENT oEEIoE.

CHARLES W. 'ARMBRUS GF CRYSTAL LAKE, ILLINOIS, ASSIG-NOR 0F ONE-FOURTH TO SYDNEY STEIN, 0F CHICAGO, ILLINOIS.

BRAKE-SHOE.

Specification of Letters Patent. 4

Patented Mar. 5, 1912.

Application led March 25, 1911. Serial No. 616,801.

Be it known that I, CHARLES W. Amu- BRUsT, a citizen of the United States, residingat Crystal Lake. in the county of Mc- 5 Henry and State `of'Illinois, have invented certain new and useful yImprovements in Brake-Shoes, of which the following 1s a specification.

This invention rela-tes to brake shoes of l0 the general type or class known as interlocking shoes wherein the back and face of the shoes are provided with interlocking means so that a partially worn shoe can be detached from the brake head and applied to the Wearing face of a new shoe, thus pletely used up.

Various modifications of interlocking shoes have been devised prior to my present invent-ion, but`so` far as I am aware. the interlocking feature has been confined entirely to plain shoes and has not been applied to what-'are commonly known as flange shoes or driver shoes. It is' well known to shoes, that is, the shoes which are used on the locomotive to engage with the driver Wheels, are usually and preferably ofthe times lemployed in connection with the cars,

The invention will perhaps be best underlstood from the'following description when /taken in connection with the accompanying drawings illustrating one preferred form of 45 my invention and throughout the various viewsgof which ylikel reference characters refer to similar part-s.

Referring to the drawings-Figure 1 is a side elevation of a brake vshoeI embodying Fig. 2 is a view showing the back of the' shoe. I Fig. 3 is a View show-4 ing the face of the shoe. Fig. 4 is a transenabling the partially worn shoe to be come' those familiar with the art that the driver` flange type, althoughiiange shoes are 'some-I versesectional view on the line 4-4 of Figs.

1 and 2. Figf is' a'transverse sectional view on the line 5-'-5 of Fig. 1. Fig. 6 1s a side elevation of a modified form of my invention. Fig. 7 is a back view thereof..

Fig. 8 isv a face view thereof; and Fig. 9 is an elevation looking at the fiange side of still another modified form of my invention.

Referring to the drawings it will beV apparent that the brake shoe proper comprises a bodyv portion 6, the face of which is adapted to bear against the tread of the wheel to which it is applied and a flange port-ion 7 located at one side of the body portion ,and integral therewith and arranged to be positioned over the flange of the wheel.

A groove 8 extending long tudinally of the fian'gelportion is provide to receive the wheel flange. A loclting stud 9 is formed centrally of the body portion of the shoe and upon the back thereof and the walls of this stud are undercut so that a detachable fastening lug 10 may beengaged therewith, as shown in Figs. 1 and 4. The fastening lug is attached to the locking stud prefer ably by moving the lugV longitudinally of the shoe, but it will be obvious that'it might be attached by moving it transversely of the shoe, if preferred; in that event, however, a slightly different form of lug would be required in which the key-slot is disposed at right angles to the undercut walls of the lug. 4The baclt Vof the shoe, shown in Figs.A

1 and 5, is also provided preferably near its ends with locking lugs 12 which extend transversely of the shoe, the walls of these lugs being undercut for locking engagement with similarly'shapedireesses 13 -on the face of a similar shoe.v also formed centrally of the face of the body portion, this recess being adapted to receive and lockingly engage with the locking stud '9 of a similar shoe. It will be noted that the recess 14 extends only partially across the face of the body portion the outer end of the recess being closed. The end wall of the recess is undercut as well as the side walls to insure a firm locking engagement between the recess'and its companion locking stud.

Upon the face of the flange portion of the shoe and outside the flange groove S Ihave A. locking recess 14 isV lis provided locking lugs spaced from the ends of the shoe and from each other, the ends of these lugs being undercut, as shown, for locking engagement with the undercut end walls of recessesil provided on the back of the flange portion of a similar shoe. The face of the flange portion between and at each end of the locking lugs is preferably l' by inserting the locking lugs 12 and the locking stud 9 into the open ends of the locking recesses 13`a1'1d 14 and then moving the shoes' transversely relatively to each other until the stud reaches the closed end of the recess 14. rI`his movement will cause the lugs 15 on the flange portion to enter the recesses 16 and lock lthe flanges of the shoes together. It will be obvious from Figs. 4 and 5 that lateral ldisplacement of end 'wall of the recess 14.

the lower shoe to the left, viewing these figures, is prevented by engagement of the side walls of the interlocked flanges as well as by the locking stud 9 which abuts against the When the shoes are in working ppsition the wheel flange is relied upon to prevent lateral displacement of the lower shoe in the opposite direction.

In the modifications disclosed in Figs. 6,

'Z and 8, the body portion 6 is provided with the locking stud 9, aspreviously described, but instead of having merely a locking lug at each end of the shoe I have provided locking lugs .16 disposed intermediate the locking stud 9 and theend locking lugs 17. The back of the flange is provided with four locking recesses 18 having undercut walls for locking engagement with the lockingv lugs 19 disposed'on the face of a similar shoe. The recesses 20 which alternate with the locking lugs 19 are'adapted to fit over elevationsQl alternating with the locking recesses 18 on the back of the flange. The centrally disposed locking recess 14 is arranged to engage with the locking stud 9.

and the transverse locking recesses 22 and 28 are adapted to coperate with the

locking lugs

16 and 17 to lock the shoes together. While I have shown'in this modification the back of the flange as provided with elevations at the ends and the face provided with corresponding depressions Aor recesses at the ends, it will be obvious that this arrangement may be reversed, if desired, and it will also be obvious that the number of therecesses and elevations arranged in alternation across the shoe may be increased or diminished, as desired. .y

In the modification disclosed in Fig. 9 the of said flange portion being provided with' increases flange is provided with the same number of elevations 24 and depressions 25, as are shown in Figs. 6, 7 and'8, but the side walls of the elevations and depressions, instead of being undercut to. establish an interlocking 7 relation between the flanges, are arranged parallel with each other and approximately at right angles to the longitudinal axis of the shoefy This construction permits the elevations and depressions on the back and face 7 of similar shoes to interfit or slide into each other so as to form a continuous flange without interlocking, the locking lugs and vreH cesses on the bodies of the shoes being depended upon entirely to retain the shoes in 3, f

stood from the foregoing without further description and it will be obvious that'vari- 84 ous minormechanical changes in the size, formation and arrangement of the various parts may be resorted to without departing from the spirit or sacrificing any of the material advantages of the invention. 9

I claim: f

l. A brake shoe comprising a body portion and an elevated flange portion, the back and face of said body and flange portions being provided Awith interlocking means s.' whereby similarly shaped shoes may be locked together.

2. A brake shoe comprising'a body portion and a flange portion, the back of the body portion and the face of the fiange porit tion being provided with llocking lugs and the face of the body portionv and the backof the flange portion being provided with recesses adapted to interlockingly engage with the locking lugs on a similar shoe. l 1( 3. An interlocking brake shoe comprising a body vportion and a flange portion, the back of said body portion being provided with locking lugs spaced apart and the back locking recessesI disposed intermedia-te said locking lugs and the face of the shoe 'beingl provided with locking recesses and locking lugs adapted to interlockingly engagev with the lugs and recesses on Athe back of a simi- 1] lar shoe.

4. An interlocking brake shoe comprising y a body portion and a flange portion, locking lugs formed on the face of said flange portion and recesses formed on the back thereof 12 and adapted to interlockingly. engage with the locking lugs on a similar shoe.

'5. An interlocking brakel shoe comprising a body portion and a flange portion, the. back and face of said flange portion being provided with means for locking the flanges of similar shoes together and the back and face of the body portion being provided with means for locking the body portionscf similar shoes together.

` 65 provided on its 6; An interlocking brake shoe comprising a body portion and a flange portion, said body portion being provided .with a'centrally disposed locking stud and a plurality of locking lugs and the flange portion being provided with a plurality; of locking lugs, the faces of the body and flange portions opposite the locking lugs Abeing provided withV locking recesses adapted to interlockingly V10 engage with the lugs of a similar shoe.

7. An interlocking brake shoe comprising a body portion and a flange portion, the back of the body portion being provided 4with a centrally disposed locking stud adapted to be detachably engaged by a removable attaching lug, the back of the flange portion being provided with undercut locking recesses; the face of the body portion having a locking recess closed at one end, lthe walls of the recess being adapted to engage with a locking stud on a similar shoe and the face of' the flange having locking lugs adapted to engage in the locking recesses on the flange of a similar shoe whereby the shoes are locked together.

8. A brake shoe comprising a body portion and a flange portion, said flange portion being grooved longitudinally on its face and having a plurality of locking lugs disposed outside said groove and' the face of the body portion being provided with transversely extending locking .recesses adapted to interlockingly engage Withlocking lugs on the back of' a similar shoe.

9. An interlockin(y brake shoe comprising a body portion and a flange portion, said flange portion being provided near its outer edge with locking lugs and having a wheel flange receiving groove extending longi- 40-tudinally of theshoe between said lugs and said-body portion, the back of the flange being provided with locking recesses adapted to interlockingly engage with said lugs on a similar shoe and the body portion being provided on its back -and face with locking means whereby the body portions of similar.sh'oes may be locked together.

10. A brake shoe comprising a body por'- tion and an elevated flange portion, said flange portion being equipped with provisions for interlocking engagement with the-flange portion of a similar shoe.

11.A An interlocking brake shoe. comprising a body portion and a flange portion,

'f5 sa1d flangev portion being provided with alternating elevations and de Jressions adapted to interfit 'vations and depressions on the flange of a similar shoe.

.60 12. An interlocking brake shoe compris- .ing a body portion and a flange portion, said body portion being provided on its back with lockinglu s and on its face with locking recesses an said flange portion ,being back: and face with alterof the body'portion, with correspon ing elenately arranged elevations'and depressions adapted to engage with the elevations and depressions on a similar shoe.

13. An interlocking brake shoe comprising a body portion and a flange portion,said body and flange portions being provided with lugs and recesses adapted to coperate with the lugs and recesses on the body and flange portions of a similar shoe to lock said shoes together. i 75 14. A brake shoe comprising a body portion and a flange portion having its back elevated above the back of the body portion, said shoe being provided with means whereby similarly shaped shoes may be locked together upon relative transverse movement thereof.

15. A brake shoe comprising a body portion, a flange portion having its back elevated above the back of said body ortion,8'5 said body portion being provided with means whereby the bodies of similarly shaped shoes may be locked together upon -relative transverse movement thereof.

16. A brake shoe comprising a'. body por- 90 tionand a flange portion, the back of said flange portion being elevated above the back of said body portion and said flange portion being provided with means whereby the flanges of similarly shaped shoes may be locked together.

17. A brake shoe comprising a body por- ,tion and a flange portion, the back of said flange portion being elevated above the back and said body and ofv said body portion, flange portions being provided with' means whereby similarly shaped shoes may be locked together.

18. A brake shoe comprising a body -portion and a flange portion, the face of said flange portion being depressed relatively to the face of said bod portion, and means whereby similarly s aped shoes may be locked together upon relative transverse movement thereof.

'19. A brake shoe comprising a body portion and a flange portion, the face of said flan e portion being depressed relatively to the ace of the body portion, said body portion and flange portion having provisions whereby similarly shaped shoes may be locked' together.

Q0. A brake shoe comprising abody portion and a flange portion, the back of said flange portion being elevated above the back said' shoe having pro-- visions for interlocking engagement with a similarly shaped shoe upon relatively transverse movement of said shoes.

21. A brake shoe comprising a body portion and a flange portion, `the face of said' flange portion being depressed relatively to the face of said body portion, said shoe being equipped with means whereb a similarly shaped shoe may be locke thereto 13 0 upon ransverse movement of one of seid' gaged therewith upon movement of one of shoes relatively to the othe. v the shoes transversely relatively to the other,

22. A brake shoe comprisnfr a bodyportion and e ange portionv elevarted 'elatvely CHARLES W' RMBRUST' 33 ao said 4body portion, said body and Hange- Witnesses:

poton's having provisions whereby a simi- IRA J. WILSON, awly shaped shoe may be interlockngly en- M. ROBERTSON.

@aviles of'ths ,gm-.tent may be obtained for y.five cents each, by addressing the F *simmer of Patents,

Washington, D'. C.