US947074A - Car-brake. - Google Patents

Description

T'. E. CRUBSS.

CAR BRAKE.

APPLIOATION FILED Mmm, 1909.

Patented Jau l18, 1910.

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T. E. GRUBSS. GAR BRAKE. APPLIUATIGN IILBD A211. 21l 1909.

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Specification of Letters Patent. Patented J 3,11. 1S, 1910.

Application led April 531, 19:09. Serial No.l 491,328.

To all whom it may concern: a

Be it li'nown that l, Trioirns E: Crosse, a citizen of the United States, residing at Salinas, in the county of Monterey and rtate of California, have invented new and useful improvements in Cailralres, ot which` the llowing` is a specication. l

This invention relates to car brakes, and more particularly to those adapted for use upon street railway cars, and has for an object to provide a brake oi this character which may be ehiectively' usediin cases ot emergency to eil'ectively brine` a car to an immediate standstill. l Y

iurtber object ot' the invention is to provide a plurality of shoes or similar r eleinents suspended troinbeneath the vcar,and further providing; ineens for actu .ng said slices to bring rhein into en -ent with the rails upon which the cui* is traveling and tor forcing said shoes beneath theuheels oi3 the car trucks so that the entire body @if the car can be ra' ed upwardly away troni the tracks, to prevent inoveinent oit the car even should the niotornian fail to disconnect his power.

tlier objects and advantages willbe apparent as tlie nature voil-the invention is better disciosed. andit ywill of course, be

understood that changes within the specific scope of the claims can be inade without de parting' from the spiritot' the invention.

.in the drawings forming' a portion of this specilieation, and iii which like cliaracters ot rel-I nee indicate siinilar parts in several views, Figure 1 is a longitudinal section through a car body slfiowing,` the application of iny present invention thereto, parts being shown in an inoperative position. Fig. 2 is a detail View with parts broken away of the side sills ot' a car showing` one of the slioe arins in position so that .the shoe carried thereby engages the wheel of the car to bring it out of engagement with the rail. Fig. 3 is a detail perspective View of one of the car sills showing an intermediate kpair of shoe carrying arms, said arnis 'being in an inoperative position. Fig. l is a detail vertical section takenl on the line l5-4 of Fig. 3. Fig. 5 is a detail perspective view of the guard and shoe receiving element. Fig. 6 isa detail perspective view of one of the shoes. y

Referring now incre particularly to the drawings, and with particular reference to F ig. 1 there will be seen a car A provided with thevgusual wheeled trucks B andvG, the

wheels vot which leing supported upon the y extending beanie or sills E provided midway between their ends with horizontally dis-' posed inwardly extending pins or studs 1 and The bearns or sills E are provided ad gecentto their outer ends with pins y3 and 4:

similar te the pins or studs 1 .and 2 previf ously described. posed in a. diagonal depending slot 5 torined ina head' 6 at the upper end of an arin f7 which is preferably of larcuzde torni and is constructed 'from angle iron as will be clearly titlil lip() The Kerin 7 is provided at the lower end thereoifv *li a shoe receiving element or socket nieinber 8 in which is mounted the reduced upper end 9 oli' a .shoe 10.. rlhe shoe' 10 is preferably orined ot wood or fibrous mate rial so that it can be effectively engaged .with the wheel ef the truck l as will be readily understood. rElie reduced portion 9 ot' the shoe 10 is provided with a plurality of vpassages 11 adapted to receive removable clamping bolts 12 engaged with the shoe receiving element 8. The shoe .10 is provided with a rabbeted portion 13 in which. is seated a por tion oi a guard element or 'wing` 14 formed integral with the shoe receiving element 8. "l" e slioe'ltl is provided with a flat lower r`he pin or stud 1 is disf enterence to Fig. 8 of the drawings.

ffice 15 and with a curved' or cani tace 16, the

:torinerbeing adapted' normally to lie in spaced relation to the treaeL portion of vthe ,i

rail and the latter arranged to lie in spaced krelation to the peripheral edge of one or" the wheels oi" the truck B. The pin 4C carL ried by the sill or beam Fi is disposed in a diagonal slot 17 'formed in a plate 18 identical in construction to the head 6. T he head 18 is provided with an arin 19 which carriesf is disposed in a diagonal slot 24 formed in a head Q5 similar to the previously described head, andas shown, the arm 26 of said head carries at rits lower end a shoe 27 disposed d1 description of .my invention merely covers .the .construction of my brake at one side of the car, but I desire to use a duplication .of thestructure disclosed so that Wheel engaging shoes are provided for all wheels of the car upon which vthe brake is mounted. The

brake in vgeneral has its heads '18 and 25` -provided with horizontally 'disposed cross bars 32, each being provided with a bracket 33 to which is pivotally connected the lower -end of .an actuating lever 3i pivoted lat 35 'to a vrack .segment 36.\ To prevent inward movement of `the Aarm 26 beyond a predetermined point, I connect the 'sill or beam A to said arm by means of a chain 'or similar flexible element 37. A chain 38 yalso connects thearm 19 with the sill or beam E to `prevent inward movement of this arm vbeyond a predetermined point.

The brake yas shown in Fig. 1 .is .in :an inoperative position, vand should it be 4desired 'to bring the v'car A to'a standstill, the levers Sa'can be'easily actuated by the motorman or operator of the carto simultaneously move the arms 7 19, 2G and 29 so that the -shoes carried by said arms will be effectively engaged beneath the wheels .of the trucks .B and C by momentum of the wheels so that the .outer extremities of the arm `lie eccentrically of :the vertical aXis of the axles `of the trucks. The construction of the shoes is such that the car A can be Vrapidly moved upwardly so that the wheels of .the trucks are completely thrown out of .con-

tact with the supporting rails B, thus preventing movement in either direction of the car even should the m'otorman fail to cut olf his power. By providing each shoe with a guard as previously described it will be seen that when the said shoes are moved in a position to raise the car, the guards will lie at the sides of the rails B to effectively prevent the car becoming dis laced or derailed as will be fully appreciate l. In a brake of the .character described, wheeled trucks, heads provided with depending arms, shoes carried by said arms and adapted to be engaged with the wheels of said trucks, said shoes being provided at their lower ends with rail engaging faces, 'means for slidably supporting said heads, .links connecting the said heads, and means for simultaneously imparting sliding move- .ment to said heads so that their shoe carrying :arms can be moved into their operative or inoperative positions.

2. In a brake of the character described, Wheeled trucks, heads provided with depending arms, horizontally disposed pins, said heads having angularly disposed `slots .formed therein,said pins heilig disposed .in said slots, shoes carried by said arms and 7adapted .to `be engaged with 'the Wheels of :said -trucks, said shoes being provided at 'their lower 'ends with rail engaging faces, links connecting the said heads, and means for simultaneously imparting sliding movement to said heads so that their shoe carrying arms can be moved into their operative or inoperative positions.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS E. CRUESS.

Witnesses:

WILLIAM J. SMITH, JosIAH W. CoAN.

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