US848668A - Vehicle-brake. - Google Patents

Description

EATENTED APEfz, 1907.- E. E. LUKENs`& I. s. .DIEEE VEHICLE BRAKE. APPLICATION FILED HAY 22, 1906.

2 SHEETS-SHEET l.

. FICTI.

INVENToRs: i? f No. 848,668i A PATENTED APR. 2, 1907. B. P. LUKENS & I. s. DIBHL.

A VEHICLE BRAKE. APPLIQATION FILED MAY 22, 190e.

. FICH/ Flaw UNITED STATE-s yParam* vonineif.

BALrrs 1?. LUKnNs AND isADoRE Dini-1L, or ALLENTOWN,

PENNSYLVANLA.

` VEHICLE-BRAKE.

No. 848,668. A

To all whom, it may concern:

Beit known that we, BALTIs P. LUKENS and IsADoRE S. DIEHL, of Allentown, in the county of Lehigh and State' of Pennsylvania, have invented certain new and useful Imrovements in' Vehicle-Brakes, whereof the following is aspeciiication, reference being tion-studs so sharpened as to dig into saidv rail when forced into contact therewith.

l We have chosen to illustrate our invention as applied to an'ordinary street-railway car; but it is to be noted that it is applicable to othertypes of vehicles.

Our invention comprehends the various novel features 'of construction and arrangementhereinafter more definitely specified.

In the accompanying drawings, Figure I shows in side. elevation the forward portion of a car to which our invention is applied. F II is a rear elevation of those parts which include our invention. Fig. III is a central vertical longitudinal section of the brakeshoe. `Fig. V is an inverted plan view of said brake-shoe- Fig. V is a sectional view of one form of the friction-studs employed in said shoe. Fig. VI is an elevational view oi' another form of friction-stud employed in said shoe for the same purpose.

In said drawings, l is the forward end of a car,1om the underraming of' which depend hangers 2 2, carrying a rock-shaft 3, which is provided with arms 4, corresponding in ver- -tieal planes to the rails upon which the vehicle runs. To each of said arms 4 is pivotcd a link 5, which is in turn pivoted to the b`rake shoe 6. and link 5 thus form a toggle-joint, whereby the rotatitm ol. the rock-shaft 3 in the direction indicated by the arrow in. Fig. I forces the brake-shoe into rictional engagement with the rail.

Upon the shaft 3 is secured the el1ainwheel 7, which is connected by the chain b to Specification of Letters Patent.

Application iled May 22. 1906. Serial Nol 318,127.2"

As best shown in Fig. Itthe arm 4f APatented April 2, 1907.

the lower end ofthe brakerod 9, arranged to be rotated to wind said chain thereon and to thereby rotate the wheel 7 and shaft 3 to 'depress the brakes in opposition to the tension of the 'spring 10, which normally tends t0 .maintain the brake mechanism in inoperative pos1t1on. Y

In order to malntam the brake-shoes in proper operative relation with ,the rails,

there is pivoted to the forward end of each of said shoes a rod 12, whose length is conven iently adjusted bythe turnbuckle 13 and whose forward end is pivoted to its respectivehanger 15, depending from beneath the forward end of the platform of the car.

Referring now to Fig. III of the drawings, wherein the pivotal connection with the shoe 6 of the supporting-link 5 and rod 12 are clearly shown, it may be seen that the brakeshoe proper consists of a metal block having a plate 20 set within a recess 21 in its lower face and united to it by bolts 22 22. Said plate 20 is provided with a plurality of aperand 25 extend, each being provided with a head 26, which is countersunk within the plate,.whereby they are held in position.

The lower end of each of the studs, of which 'we have shown two forms, projects through the friction-plate so as to bear directly upon the rail when the brake is applied. In one form the lower end of the stud 24 is recessed centrally, as shown in F ig. V, which provides a sharpened circular rim arranged to contact with the rail. In the other vform (shown in Fig. VI) the stud 25 is pointed.

These studs may be formed of hardened steel or other suitable Vmetal and are readily made in large quantities, and 'as they are readily replaced it is obvious that as soon as those carried by the brake become. worn down so as to lose their holding power others may be substituted.

The brake-shoe (i is further provided with aside ll ange 2S, depending from its inner edgeand arranged to slideI along the inner side oiT the rail to maintain said shoe at all times in proper longitudinal relation with said rail.

' We do not desire to limit ourselves to the precise details of construction and arm-ingement herein set lortli, as it is obvious that various modifications may be made therein without departing trom the essr-fntinl features ol our invention.

tures 23, through which the friction-studs 24 v We claim- 1. a vehiolefbrake, the combination of the vbrake-shoe; of means arranged to press #said shoe-against the rail upon which the vejhic-le runs; aremovable face-plate for s aid shoe;4 and a plurality of replaceable frictionstuds held in place by said face-plate, sub.-

. Stantially las set forth.

. 2. In ya vehiolebrake, the combination. with a brake-shoe supported irl/proximity to the surfatraversed by said vehicle, and loeatd between a Wheel andthe end of the vehicle; of a shaft journaled above said shoe; an 'arm on said shaft; -a link connecting said shoe and arm; and arod extending from said 'l shoe to the under side of the vehicle, whereby s'V substantially as set forth.

4. In a vehiele-V brake, the combination l with abrae'eshoe; Vof a 'removableface:'.plate` Witnesses.:

for said shoe; and a plurality of edged frietional studs passingt-hrough and secured in place by said face-plate, substantially as set forth.

i 5. In a vehicle-brake, the combination with a brake-shoe of a plate secured to said shoe; a plurality of shouldered apertures in said'plate; and shouldered edged friotional -studs seated in'said apertures, arraneedto friction'ally engage a relatively movabile surfa'ce, when said shoe is shifted, substantially as set forth.

y 6. In a vehicle-brake,4 the combination with a brake-shoe of a plate securedto said shoe; a plurality of pointed studs; heads on said studs opposed to said points and arranged to be engaged by said plate; and means arranged to shift said shoe to engage said points with a relatively movable surface.

yIn testimony Whereof We have hereunto signed our names, at Allentown, in the State of Pennsylvania7 this 18th day of May7 1906.

BALTIS P. LUKENS. ISADORE S. DIEHL.

AMADEs F. HENNINGER, 5 Tiros. 0. Grnirrnes.. v

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