US995012A - Brake-shoe with cast-metal insert. - Google Patents

Description

H. worms.

BRAKE SHOE WITH CAST METAL INSERT. APPLIGATIOI II-L'ED FEBJO, 1911.

995,012, Patented June 13, 1911.

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lhvntor'k' UNITED STATES PATENT OFFICE.

nnnny Jones, on sursnnn, new roan, nssrGNoR r EDWARD H. EALLOWS, or NEW t V YORK, Y.

BRAKE-SHOE WITH CAST-METAL INSERT.-

Specification of Letters Patent. Pat t d J he 13, 1911,

Application filed February 10, 1911; Serial No. 07,727.

Tooll whom 'it'may concern. 7

Beit known that I, HARRY Jones, a cit izen of-the United States, and aresident of Sufi'ern, in the county of Rockland and Statev of New York, have made and inventedcer tain new and useful'Improvemcnts in Brake- Shoes with Cast-Metal Inserts, ofwhich the following is a specification.

My invention relates to brake shoes of the type wherein a; metallic insertis embedded within the cast metal body portion of the shoe and. worn away therewith, the object being toprovide abrake shoe oft-he type referred to with foraminous holding members, formed preferably from expanded metal. and embedded in the cast metal body portion of the shoe, and which members serve-t0, hold the inserts in place and pre which may be readily and cheaply manufactured, and; one in which" the entire shoe will be heldtogether and thus be capable of con-- tinued use broken. u

should it become cracked or Further objects of my invention will be referred to in the following specification wherein my improved brake shoe is do scribed, and the particularfea tures wherein my invention consists will be specifically claimed in the clauses of theconcluding claim.

preferred embodiment ofmy improved brake shoe is illustrated: Figure 1 'is a view showing a foraminousniember with a metallic insert secured thereto, the view being in perspective; Fig. v2 is a similar iew showing a secondjforaminousmember placed upon the insert preparatory to placing the same in a mold; Fig. 3 is a View showing a brake shoe, in side. elevation with. the position a of an" insert: =indic ated in dotted lines; Fig. 4

fle is a; view showing a cross-section of' mu imtive for the purpose-for which it is intended,

Fig. 4" is a similar view showing a brake -shoe having a modified form of metallic insort; F ig. 5 is a View showing a similar cross-section of a brake shoe having ans other form of metallic insert; Fig. 6 is a iew showing the metallic insert ofth'e form shown in Fig. 5 in perspective; Fig. 7 is a plan View showing several inserts such as are shown in Fig. 6, preparatory to placing them in a mold; and, Fig. 8 is a similar view in which, however, some of the insorts are omitted,

In the drawings: 10 and 11 are two 0- raminous membersbetween which a metallic 12 as secured to the foramino'us member 10,

this member being "the one nearest the back of the completedbrake shoe. The insert 12 is formed from cast metal and is secured to the foraminous member 10 by casting the insert in a mold in which the member '10 is placed, whereby as will be understood, a portion of the member lO'corresponding in area with the insert 12 will become embedded in said insert, as will be understood from Figs; 4 and a of the drawin where in the upper or back side of the insert 12 is shown .as'embedding-a portion of the forami'nous member 10. The insert 12 is provided with a plurality oi projections 13,

and after the iixserthas been secured to the "member -10 as explained, the second foraminous member- 11 is placed over the insert 12 in such a position that the projections 13 extendthi'fo h openings in the member III as shown in d 'f'comes in contact will be subjected to the .actionof the insert 12, whereby the formaifiion-fo'f grooves in. the face of the wheel 1s avoided, the insert '12 .bein'g ordinarlly" ita -med from liardenmeta'l' than the body ig. '2'of the drawing, and Y the members 10 and 11 are secured together In the accompanying drawing wherein the its portion of the brake shoe, which fact would tend to form grooves in the car wheel if the action of the insertis not distributed over the entire wearing surface of the wheel. The insert- ].2 is shown as wider at its lower or back sidethan at the front, so that the same will be securely retained in the cast metal body portion of the shoe.

The foraminous members 10 and 11 and the insert 12having beenformed and ass sembled in the manner illustrated in Fig. 2, the entire insert thus formed is placed in a mold and the cast metal, preferably castiron, from which the body portion of the shoe is to be formed is poured into'the mold whereupon the said insert becomes embedded in the cast m'etal'body portion of the shoe.

In Figs. 4:, 1 and 5, 15 represents the-cast metal body portion of the shoe, which, as

will be seen, embeds the inserts 12 and the foraminous members 10' and 11.

Inthe form of my improved brake shoe shown in Figs. 1 to 4 itwill be seen that the cast -metal insert embeds a portion of the foraminous member 10, so that the insert is prevented from falling from't-he shoe should it becomes broken, this action being in, ad-.

dition to a similar action due to the tapered form of the insert, so that if the insert becomes broken as is frequently the case in actual use, the parts therefore are retained in the cast metal body portion of the shoe and held in place until the shoe is worn out.

In Fig. 51, I have shown three superposed fora- minous members 16, 17 and 18 to the upper or rear one of which the insert 19 is secured by'embedding the same therein, the

said insert having much longer projectionsl than the projections shown in Figs. 1, 2 and Y 4, so that the two members 17 and 18 may be placed over these projections. This constructionprovides a. brake shoe in which the entire shoe is more securely bound together and prevented from disintegrating shouldit become'broken in use, and also provides a shoe which may be worn away a somewhat greater distance from its bearing face than is the case when inserts such as are shown in Figs. 1, 2 and a are used.

In the form of brake shoes shown in Figs. 5 to 8 inclusive, the inserts 20 are shown as extending transversely to the wearing face of the shoe. These inserts are held between two foraminous members 21 and 22 formed referably from expanded metal as in the 'ormof the shoe above described, these inserts having each a plurality of projections such as 23 which extend through openings in the foraminous member 22; The inserts 20 in this form of my improved shoe are not, however, positively secured to the rear foraminous member 21, but are .held between the two members as will be understood from Fig. 5 of the drawing. The members 21. and

' 22, however, secure the 20' in place and prevent them from falling from the cast metal body portion 21- of the shoe should the inserts become broken. 'The members 21 and 22 also hold the inserts 20 in place when the said members and inserts are placed in a mold preparatory to pouring the cast metal of the body portion of the shoe thereinto in the process of forming the shoe, it being understood that the inserts are. placed between the members 21 and 22 and these members tied together by means of wires or bands 25 before they are placed. in the mold.

Fig. 'Tshows a brake shoe in which a sufficient number of inserts suchas 20 are used to provide a projection 23 extending through each 'opening in the expanding metal member 22. It is, however, not al- .ways necessary to provide'so great a number of inserts, and, in Fig. 8 I ha-ve illustrated the use of a lesser number of inserts; in the shoe. In such case the inserts should be so located in the foraminous supporting members that the projections 23 of the inserts will not come in line with one another, this feature being to avoid the formation ofgrooves in the wearing face of the car wheelas will be understood. 1

In addition to the function referred .to above, the foraminous membersserve further to prevent the cast metal body portion of the brake shoe from falling apart, shouldthe same become bro *en in use.- The foraminous members therefore serve to hold the entire brake shoe, that is, both the cast-metal body portion andthe cast metal insert, together in case either or both become broken in use, therebyenabling the shoe to be used of the shoe when the shoe is in use, and that the said projections, the cast metal. body portion of the shoe, and the foraminous' member 11 (or 22) are simultaneously worn away as the shoe is used. The foraminous or expanded metal members serve to hold the parts of'the shoe together as explained should the-body portion -or inserts, or both, become brokenin use, so that the brake shoe may be 'used until both the inserts and body. portion are entirely or substantially worn away.

Having thus described my invention, I claim and desire to secure by Letters Patent: 1. A brake shoe comprising two superposed foraminous'metallie members spaced apart from one another and arranged parallel with the wearing facesof the shoe an insert located between: said members an occupying a partonly of the areas of said members; and a body portion formed from castmetal and within which both said toraminous members and said; insert .are embedded. l I

one another; an insert 2, A brake shoe comprising two foramh .nous metallic -members spaced apart from one another; a metallic insert located bctween said members and secured to one of them and occupying a part only of the a]. of said members; and a body portion formed from cast metal and within which both said. force-linens members and said insert are our bedded.

3.- AI brake shoe comprising two :t'orami nous metallic'members spacedcjpart from one another; a metallic insert located between said members and secured to one of them and occupying a part only or the areas of said members, and which insert extends longitudinally of the shoe; and abody portion formed from cast metal and within which, both said foraminous members and said insert are embedded.

4. A brakes-hoe comprising a forsminons metallic member; a, longitudinal metallic insort secured thereto and occupying a part only of the area of said member, and which extends substantially the entire length of 'thc'shoe; and a body portion formed fromcast metai and Within which both said to raminous-member and insert are embedded.

5. Abre'ke shoe comprising two for emiilous m'tellic'm'embers spaced apartfrom v ormed from east metal'and'occupying a part only of the area of said members and in which a like area: of oneof said members is embedded; said insert being located between said members and extending'longitudinally of the shoe; and a body portion formed from cast metal and Within which both said foraminons members andsaid insert are embedded.

6. A brake shoe comprising two ford-mi nous metallic members -s seed apartfrom one another; an insert ormed from cast metal and occnpying a part 01113 of the area of said members-and in which a: like area of one of said members is embedded, and a body portion formed from cast metal and within which both said foraminous memhers and said insert are embedded.

7 A brake shoe comprising a foraminous metallic member; a longitudinal nsert formed from cast metal and. occupying a,

" rt only. of the area of said member and in rich be like areaof said member is emd'ded" and which insert extends substany; the entire length of the shoe; and a dy portion formed from cast metal and wthinwhich both said foraminous member and "said :insert are embedded.

8, Abrake shoe comprising foraminons ianetallic memberan insert formed from t .metal and extending substantially the re length of the shoe and occupying a onlyofi the ar "ofseid member and in ii like area of one of said membe i lililte ii reir i lmeniber emande; portion me etal' and- Willi 1 and. a, body portion formed from cast metal and within which both said ft'oraminous members and said insert are embedded.

10. A. brake shoe comprising ztforaminous metallic Ir nber; a metallic insertj secnred thereto and occupying a part only of the area of said member, and which insert ex tends in a sinuous path longitudinally of the shoe; and a body portion fprmed from c-(ist metal, and Within. which, bothisaifdf fordm-i nous member and said. insert are. embedded.

11.. A brake shoe comprising two foraminous metallic members s 108d apart from one another; an insert ormed from cast metal and occupying a part only of the area of said members and in which a like area of one of said members is embedded, said i n' sert being located between said members and extendin in a sinuous path-longitudinally of the shoe; and a body from cast metal and w1thin.,wliich; bbth said fomminous members zmd said insert are embedded. 12. A broke shoe comprismge forammons metallic member; an insert 'formed ,from I castmetal and occupying a. profit only of the.,,

area of said member's-rid in a like area; of Stfld member 1s embedded, which msert'extends m a sinuous pa th' long udinally of the shoe; and a, p

ormed from cast metal and wi t ijn 'W ch 0th said for-ominous member sertareembedded.

13. A brake shoe comprising two members formed from expanded metal and lsfpgicd end said. in-

apart from one-another; an insert" formed from cast metal and occupying a part 'onl of the area of said members a'nd.i nj\'=\rhic 1 I sf-is'l' inbedded, said insert bein located between said members and extending longitudinally of the; shoe; 'and a: body portion formed from cast metal and Within whiclrboth'said expended meta members and said insertjiire embedded. f1

14. A broke shoe comprising two members formed from expanded metal and spaced apart from one another; an insert formed from cast metal and occupying a part only of the area of said members and in Which 'o like. area of one of said members-sembedded, and. a body portion formed from cast metal and within which bot-hsziid-xpended metal members and said ins'ert re embedded.

15. brake shoe comprising two:

portion "f rmedformed from expanded metal and spaced apart from. one another; an insert formedfrom cast metal and occupying only a' part of the area of said members and inwhich a like area of one of said members is embedded, said insert being located between said members; and a body portionlformed fronrcast metal and within which both said expanded metal members and said insert are embedded.

16. A brake shoe comprising a memberformed from expanded metal; an insert formed from cast metal and occupying a part only of the area of said member and in which a like area of said member is cm-. bedded and which insert extends lon itudinally of the shoe; and a body portion formed from cast metal and within which both said expanded metal member and said insert are embedded.

17. A brake shoe comprising a member formed from expanded metal; an insert formed from cast metal and occupying a' .part only of the area of said member and in which a like areaof said member is embedded; and a body portion formed-from cast metal and within whichboth said expanded metal member and said insert are embedded.

18. A brake shoe comprising a member formed from expanded metal; an insert 7 formed from cast metal and occupying a;

part only of the area of said member and in which a likearea of. said member is embedded, and which-insertexten'ds in a sin uous path longitudinall' of the shoe; and. a body portion formed q om cast-metal'and within which both said expanded metal member and said insert are embedded.

19.. A brake shoe comprising two members formed from expanded metalv and 1 spaced apart from one another; an insert formed from cast metal and occupying a part only of'the area. of said members, andm which a like area of one of said members] is embedded, sa-id insert being located between said members and extending in a sinuous path longitudinally of the shoe; and a body portion. ormed from cast metal and within which both said expandedmetal members and said insert are embedded.

20. Azbrake shoe comprising'two foraminous metallic members spaced apart from one another; a metallic insert located betweeir saidmembers and-occupying a part only of the areas of said members, and having a plurality of projections, extending through openings in -one of said'members; and a' body. portion formed from cast metal and -within'which both said foraminous members ,gands aid insert are embedded.

21. 'A brake shoe comprlsing two foraminous metallic members spaced apart from one another; ametallic nsert located be-' tween said members and occupying a part only of the areas of said members, and secured to one of them and having a plurality of projections extending through openin s in the other of said members; and a ho y portion formed from cast metal and Within which both said foraminous members and said insert are embedded.

. 22. A brake shoe comprising two foraminous metallic members spaced apart from one another; an insert formed from cast metal and occupying apart only of the area of said members and in which a like area of one of said members is embedded, said insert having a plurality of projections extending through openings in the other of said members; and a body portion formed from cast metal and within which both said foraminous -members and said insert are embedded.

23. A brake shoe comprising two foram-' inous metallic members spaced apart from one another; an insert extending longitudinally of the shoe and formed from cast metal and occupying a part only of the area of said members, and in which a like area of one of said members is embedded, said insert having a plurality of projec tions'extending through openings in the other oisaid members; and a body portion formed from cast metal and within which, both said foraminous members and said insert are embedded. a

I 24,1 brake shoe comprising two foraminous metallic members spaced apart from one another; a metallic insert located between said members and secured to one oft-hem, 'and having a plurality of projections extending through openings in theother of said members, said insert occupying a part onlyof the areas of said members and the same extending in a sinuous path longitudinally of the shoe; and a body portion formed from cast metal and within which both said foraminous members and said insert are embedded. I c

- 25. A brake shoe comprising two foraminous metallic members spaced apart from- .oneanother; an insert' formed from cast metal and occupying apart only of the area of said members and in which a like area insert being located between said members and having a lur'ality ofprojection's extending through openingsin the other of said members and the same extending in a sinuous path longitudinally of the shoe; and a body portion formed from cast'metal and withinjwhich, both said foraminous members and said insert are embedded.

26. A brake shoe comprisinga' ioraminous' metallic member; an insert formed from cast'metal and occupying a part only of the area of said member and in which a like area of said member is embedded, said insertextending in a sinuous path longitudi- .ofonez'of said members is embedded, said nally of the shoe and having a lurality of projections; and a body port-ion orined from cast metal and Within which both said toraminous member and said insert are embedded.

27. A brake shoe comprising a foraminous metallic member; an insert formed from cast metal and occupying a part only of the area of said member and in which a like area of said member is embedded, said insert extending longitudinally of the shoe, and having a plurality of projections; and a body portion formed from cast metal and within which both said foraminous member and said insert are embedded.

28. A brake shoe comprising two members formed from expanded metal and spaced apart from one another; an insert formed from cast metal and occupying a part only of the area of said members and in which a like area of one of said members is embedded, said insert being located between said members and having. a plurality of projections extending through openings in the other of said members, and the same ex tending in a sinuous path longitudinally of the shoe; and a body portion formed from cast metal and within which, both said expanded metal members and said insert are embedded. 29. A brake shoecomprising two members formed from expanded metal and spaced apart from one another; an insert formed from cast metal and occupying a part only of thearea' of said members and in which a like area of one of said members is embedded, said insert being located between ing. a plurality of projections extending through openings in one of said members; and a body portion formed from cast metal and within which both said expanded metal members and said insert are embedded.

31. A brake shoe comprising a member formed from expanded metal; an insert formed from cast metal and occupying a part only of the area of said member, and in which .a likearea of said member is embedded, and which insert extends in a sinuous path longitudinally of the shoe and has a plurality of projections; and a body portion formed from cast metal and within which, both said expanded metal member and said insert are embedded.

Signed at Suifern in the county of Rockland and State of New York, this-third day of February 1911.,

- HARRY JONES.

Witnesses:

F. H. HARTWELL, FRANK OSBORN'.

Images