US995014A

US995014A - Brake-shoe.

Info

Publication number: US995014A
Application number: US61321511A
Authority: US
Inventors: Harry Jones
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-03-09
Filing date: 1911-03-09
Publication date: 1911-06-13
Anticipated expiration: 1928-06-13

Description

H. v-JONES. BRAKE. 151101:.`

LPPLIGLTIOB FILED IAE. 9, 1911.

995,014. Patented June 1'3, 1911.

U NTITED sTATpsfgEN'r OFFICE.

HAnRYJoNns, or sUrrEnN, NEW YORK, Assioma To EDWARD H. rALLoWs, or NEW YORK, N. Y.

BRAKE-SHOE.

Specification of Letters Patent. Patented June 1.3, 11911,

Application led ltarch 9, 1911. Serial No. 613,215.

is used; and the object of myl invention is to provide a brake shoe having a plurality of upon or above another, and so arranged that.

corrugated metallic' inserts superposed vone ad]acent edges thereof cross one another, or intersect a lurality of times throughout lthe shoe, where iron, 'separatedv by stri s of wrought "metal, and whereby the re ative disposition of the cast and wrought metal is continuouslychanging'as the shoe'is worn Vaway vand the'format-ion of grooves in the l 'Figsy 1 and -2,7and; Fig. 4 is a viewilluslating at certain' feature of my 'improved In the.drawing,"5 represents the body portion of my rovedbrake shoe, the same being formed i m cast metal, and preferably fromcast'iron of a' composition such that a. maximum of frictional and 'wearing' qualities will be secured; and 6, 7, are a plurality ofinserts embedded in the body portion and each formed preferabl from a stri or ribbon of wroughtjmeta such as mil steel or wrought iron, corrugatedy throughout its length and bent or doubled u n.1tself sc as to extend several times longltudinallyo'f the brake shoe, said strips bemg arranged edgewiseffwith reference-.to the wearing face of the'shoe as shown. While I bares-'hewn but twosuch.' I use `more y the entire body portion of the4 shoe is subdivided into a large number'of areas of cast igure 1 is a adjacent strips wedge-shaped edge of the strip and 4 'contracte l than two in case an extra thick shbe-.isrequired. The strips or inserts are superposed one upon 'the' other as shown, and they` are so arranged that the upper edge oa lower strip-intersects or crosses the adjacent. lower edge of the next higherV strip a lurality of?.

` timesv throughout the shoe, as wil `be understood from Fig. 2 ofthe drawing.

In forming my improved brake shoe, the inserts'G, 7, aresecured together in any suitable way, and then placed within the mold into which the fluid metal is Vpoured, ythe inserts becoming embedded in the body portion as above explained. The strips from which the inserts are formed after having been corrugated and doubled, as aforesaid, are curved longitudinally so as to corres ond, ap roxirnately with the curvature of t e car. wlieel for which the shoe is adapted, the effect of-which is tostretch and flatten the upper portion, and contract and curve to a greater degree the lower portion of the strip. This result vis illustrated by, means of Fig. 4, wherein A shows a portion of two adjacent segments of an insert, corrugated and bent upon itself, but not as yet curved longitudinally. Whenthe insert is curved as aforesaid, theupper edgesl of the segments ofthe Astrip are stretched and assume a form somewhat as shown at B, while the lower edges are contracted and assume a form somewhat as shown at 4C. This laction results-'1n the formation ofjspaces between n #1n a sense, beingv elongated and narrowed 't the upper v nd widened at the lower edge, -the result being that the bodies .of cast metal,- occupying such spaces i in the completed shoe, are of such a form as may 'not fall from between the strips should they become broken away' from' the bodyportion when the shoe .is in use. Thus is' thel entire shoe held together by the wrought metalstrips or inserts even4 should. itbe broken in service; Finally, the corrugated. form originally imparted to the in-v serts, together with the distort-ion which resultsfrom curving .the same as ex lained,

produces a'shoe in which th relative disposition of .the cast and wrought metal in the face of the shoe `is continuously changing as the` shoe` is worn away, and the formation of grooves in the car wheel thereby prevente Havingthus described and irplained my inventioml claim and desire to lsecure by v Letters Patent 1,. A brake shoe comprising'a body pori.' n'formed from cast metal, and a plurality super-posed corrugated inserts embedded vom and so' arranged .that the upper edge lower insert crosses the adjacent lower edge ai? the next higher. insert a tuz'gs throughout the shoe.l

A, brake shoecomprising a body portien formed 'from cast metal, and a plurality of superposed corrugated strips of wrought metal embedded' therein and' so arranged 'that the upper edge of a lower strip-crosses and. recrossesthe adjacent lower edge of the nent higher strip throughout the' shoe.

.3, A brake shoe comprising a body portion. formed from cast metal, and a plurality.

of superposed corrugated strips of 'wrought meta-l embedded therein, each of said strips t plurality of being bent orl doubled upon itelr so as to extend several times longitudinally of the shoe, the arrangement of said strips being such that the upper edge of a lower strip crosses the adjacent lower edge of the next higher strip a plurality of times throughout the shoe.

4. A brake shoe comprising a body portion formed from cast metal, and a plurality of corrugated strips of Wrought metal ern- -bedded therein,I said-strips being located one above the other, so thatthey are Worn away in succession as the shoe is used. Signed at Suern, in the county of Rockland and State of New York, this 27th day1 of February,'A. D. 1911.

HARRY JONES.

-Witnesses:

EUGENE M. GREEN, C. C. -Moneam