US808450A

US808450A - Vehicle-brake.

Info

Publication number: US808450A
Application number: US25224105A
Authority: US
Inventors: David Grubb
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-03-27
Filing date: 1905-03-27
Publication date: 1905-12-26
Anticipated expiration: 1922-12-26

Description

vmro RU E B Amm/vifs PATBNTBD DBG. 26, 1905.

[I-Illlllllllillill DAV D; GRUBB.

VEHICLE BRAKE. APPLICATION PILD MAR 27 1905 n E IIIIIIIIIIIIIII tion.

UNITED STATES DAVID GRUBB, OF PIKE COUNTY, INDIANA.

VEHICLE-BRAKE.

Speoiicaton of Letters Patent.

Patented Dec. 26, leu.

Application filed March 27, 1905. Serial No. 252,241.

T0 {ti/ whom, it 777,651/ concern:

Be it known that I, DAVID GRUBB, a citizen of the United States, residing in the county of Pike and State of Indiana, have made certain .new and useful Improvements in Vehiclean incline; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure l is a side elevation of a vehicle provided with a brake embodying my invention, parts being' broken away in sec- Fig. 2 is a top plan view of the brake mechanism. Fig. 3 is a detail view showing the brake-shoe sct against the wheel, the latter moving in a forward direction. Fig. -I is a detail view illustrating' the brake-shoe in connection with a wheel, backing. Fig. 5 isa detail perspective view of the brake-shaft. Fig. 6 is a detail perspective view of the casing, forming a bearing for said shaft. Fig. 7 is a detail section on about line 7 7 of Fig. Q. Fig. 8 is a detail perspective view of the wagonhammer. Fig'. 9 is a detail perspective view, partly in section, showing the meeting ends of the bars of the slide-frame. Fig. l0 is a detail perspective view of the brake-shoe and the devices for connecting the same with the brake-bar. Fig. ll is a detail section on about line l1 ll of Fig. 10, and Fig. 12 is a detail perspective view illustrating a different construction for securingthe brake-shaft in place.

The running-gear of the vehicle may be in general respects of ordinary construction, having the front hounds A, the rear hounds B, and the perch-pole C.

The tongue D is movable longitudinally within a boxing E, pivoted at E between the front ends of the hounds A, and this boxing E is provided on its upper side with an upwardly-projecting bar or shoulder E2 in rear of the hammer F, the latter operating in slots e in the upper and lower plates of the boxing' E and having a squared portion f to fit in the slot e of the upper plate and a projecting head F above said squared portion f, adapted to engage with the shoulder E2 when the head F is reversed from the position shown in Fig. 2 to that indicated by dotted lines in said gure in order to prevent any rearward movement of the tongue and the parts connected therewith whenever desired. The. hammer F extends through the tongue D and moves therewith back and forth within the boxing E, the slots e of the boxing permitting theplay of the hammer back and forth with the tongue D, as will be understood from Fig. lof the drawings.

At its rear end the tongue has a verticallyelongated yoke G, from the upper and lower ends of which project forwardly straps G and G2, the former, G, overlying the rear end of the tongue D and extending within the boxing E and having an opening through which the pin of the hammer' F passes. The lower strap G2 extends forwardly below the boxing and is depressed at its front end G3, forming a seat between the front end of the strap G2 and the boxing E, in which is held the doubletree H, the latter pivoting on the hammer-pin, as shown in Fig. 1 of the drawings. It will be noticed that by this arrangement the doubletree is arranged below the tongue, so that I am able to secure a lifting draft which operates to relieve the necks of the draft-animals from the weight of the tongue. As the tongue moves back and forth the yoke G moves with it, and this yoke operates to transmit the movements of the tongue to the slide-frame, which extends rearwardly and connects with the braking devices, as presently described. This slide-frame is composed of front and rear sections, slidably connected at I, and the front sections comprising the hollow side bars J, connected near their rear ends by a cross-bar J and at their front ends by cross-bars J2 and J3, spaced apart, forming a transverse slot J, in which tits the vertically-elongated yoke G, connected with the tongue, so that the yoke will move the section J of the slide-frame back and forth in the operation of the device.

The rear section of the slide-frame comprises the side bars K, projecting at their front ends within the side bars J of the front section and held in suitable adjustment therewith by pins K, a suitable number of holes j being' provided for said pins, so the sliding frame may be adjusted longitudinally to suit the dierent couplings of the wagon.

At their rear ends the side bars K connect IOO with crank arms L, depending from the brake-shaft L. This brake-shaft is also provided with crank-arms L2 Vfor connection with the brake-bar, and by preference the arms L/ are made longer than the arms L2 in order to secure increased force in setting' the brakes by the operation of the sliding trame. The brake-shaft L is also provided with the upwardly-projecting arm L, which maybe conneeted with the handle-bar M Vfor use in setting the brakes by hand. This is an important feature ot' my invention, as when desired the handle-lever M may be iitted at its socketed end on the arm If and be operated to set the brakes by hand, the handle-lever M being secured in any desired adjustment by the rack III". This handle-lever may also be utilized to lock the brakes free of the wheels. To this end I provide a keeper N, in which the brake-lever M may be fitted` as indicated by dotted lines No. l in Fig. l, to hold the brake-shaft in such position as to hold the brake shoes away from the wheel. This keeper N may also be utilized to support the brake-lever M when the latter is detached from the arm L3 ot' the brake-shaft L, the lever being supported at such time in the keeper N, as indicated by dotted lines No. 2 in Fig. l of the drawings. The keeper N is a loop open at the bottom and top, and the lever is in opuation lifted from the arm L3, the lower end ot' the lever inserted into the loop and dropped therethrough, the head of the lever engaging the keeper to prevent the entire passage of the lever therethrough. When it is desired to retain the brakes in their loosened position, the lever is dropped through the keeper and its lower end placed over the arm L, when the keeper prevents forward movement ol" the. lever.

In supporting' the brake-shaft I preler to employ the construction shown in Figs. 1, 2, and 6 of the drawings and .comprising a bearing-easing O, provided at its liront end with a transverse semitubular seat 0. in which the brake-shaft .L iits, and rearwardlyprojecting plates O2, forming between them sockets O3 for the front ends of the hounds B, and a longitudinal channel U" for the passage of the perch-pole C, as will be understood from Figs. 2 and. 6 of the drawings. The semitubular seat O is provided in its under side with openings through which the crank-arms Ll project and operate as the shaft is rocked in setting and releasing the brakes. The shaft L is secured in the transverse semitubular seat by suitable means, which may comprise the bar P, at the front end of the guide-'frame P, it'or the brake-bar Q. This guide-frame, as shown, comprises an upper or main bar whose rear end is secured at P2 to the rear axle and whose Vfront end extends along' the bearing O', thence back over the shaft L in said bearing, and is riveted at P3, as best shown in Fig. 7 of the drawings, the same rivet P3 operating to secure the front end of the lower bar PL of the guide-frame P, such bar P4k being spaced between its ends away from the main bar of the guide-frame to form a slideway for the brakebeam Q and being riveted at its rear end at P5 to the main bar, as shown in Fig. 1 of the drawings.

The brake-beam Q slides back and forth within the ways in the guide-frame P, is connected by links Q with the crank-arms L2 of the brake-shaft L, and may be operated by the rocking of said shaft to set its brake-shoes R into and out of engagement with the rear wheels of the vehicle. These brake-shoes are supported Afrom the brake-beam Q by special A devices, as shown in Figs. l, 2, l0, and 11 of the drawings, and which I will now describe.

The vbrake-block R is held in a clasp-like frame R, bent to provide a back plate R2, eX- tending across the outer side of the brakeblock and along the side edges thereoic in a groove or rabbet R and having the returned side wings Itl bent inwardly at their free ends R", the clasp forming a holder for the brakcblock and a projecting portion which may ride upon the brake-beam Q in the position of parts shown in Fig. 4. A swinging bail S Vpivots at S' to the clasp R and at its other end at S2 to the brake-beam near the front edge of the latter and permits the brake-shoe and its carrier to swing from the position shown in Fig. 3, which is the position it occupies in braking the wheel when the latter is moving forward to the position shown in Fig. 4, in which the clasp rests upon the brake-beam Q when the wheel is being backed, as indicated by the arrow in said Fig. 4. It will be noticed that the swinging bails or links S extend above the brake-beam, being1 pivoted at one end near the front edge of the latter, supporting the brake-shoe in rear of the beam, so the clasp or projection on the forward side of the brake-shoe may adjust to position to ride on the brake-beam, as shown in Fig. 4 of the drawings. In operation if the tongue D be moved rearwardly from the position shown in Fig. l it will, through the sliding frame and the brake-shaft, move the brake-beam rearwardly to set the shoes into engagement with the wheels, and the brakes may also be set by the manipulation of the hand-lever and be locked from braking by said hand-lever when operated as before described.

IOO

In Fig. 12 I show a somewhat different construction for supporting the brake-shaft and comprising a plate T, supported above the perch-pole C and provided at its front edge with bearings T', in which the shaftsjournals, as shown in the said figure.

Having thus described'my invention, what I claim as new, and desire to secure by Letters Patent, is*

l. rlhe combination substantially as herein described, of the rear hounds, the bearingframe for the brake-shaft having a rear socketed portion receiving the hounds, the perchpole extending through said socketed portion, the transverse semitubular bearing portion, provided in its bottom with openings, the brake-shaft having depending crank arms projected through said openings for connection with the operating devices and also provided with depending crank-arms for connection with the brake-beam, the brake-beam and its shoes connected with said crank-arms, the upwardly-projecting crank-arm on the brakeshaft for connection with the handle-lever, the handle-lever engaged with said crank-arm, a keeper in which said handle-lever may be supported, the sliding frame having the front and rear sections slidably connected, the bars of the rear section being' connected with the crank-arms of the brake-shaft, and the front section being provided at its front end with transverse bars spaced apart, the upright yoke passing between said cross-bars and having upper and lower plates extending forwardly, the lower plate being depressed to form a seat for the doubletree, the tongue connectedwith said upper and lower plates, a box in which said tongue is movable longitudinally, and the doubletree supported below the tongue, substantially as set forth.

2. The combination with the brake-shaft, means for automatically operating the same, and brake devices arranged for operation by the brake-shaft, of a removable handle-lever connected with the brake-shaft, and a keeper for holding the -handle-lever when removed from connection with the brake-shaft, substantially as set forth.

3. The combination with a brake-beam, and brake-shoes in rear thereof and having forwardly-projecting portions adapted to ride upon the brake-beam, and links extending above the brake-beam and pivotally connected therewith, whereby to permit the brake-shoes to swing to position in which their projections may rest upon the beam, substantially as set forth. y

4:. A brake-shoe provided on its front side with a clasp having a back plate provided at its ends with portions engaging the shoe and with returned portions forming a projection to rest upon a brake-beam, a brake-beam, and a swinging bail or link pivoted to the brakebeam and to said returned portions of the clasp, substantially as set forth.

5. The combination with the rear hounds, and the perch-pole of a vehicle, of a brakeshaft, brake devices connected with said shaft, and a casing having a socketed body portion receiving the rear hounds and the perch-pole, and a transverse semitubular portion receiving the brake-shaft, and means for holding the brake-shaft in said semitubular portion, substantially as set forth.

6. The combination with a brake-shaft having depending cranks, and brake devices connected with said shaft for operation thereby, of a support for said shaft, having a semitubular bearing portion receiving the shaft, and provided in its bottom with openings in which the depending cranksoperate, substantially as set forth.

7. The combination with the brake-shaft having cranks, and the casing therefor having a transverse semitubular portion receiving the shaft, of the brake-beam connected with the shaft for operation thereby, and the guidingframes for said brake-beam suitably supported at their rear ends and provided at their front ends with portions extending over the brake-shaft and securing the same in the semitubular bearing portion, substantially as setforth.

8. In an automatic brake device, the combination with the tongue, and a boxing fitting over the tongue and within which the latter slides, of a yoke at the rear 'end of the tongue and having a forwardly-projecting plate secured to the tongue and fitting between the same and the upper plate of the boxing, and a lower plate extending from theyoke forwardly beneath the boxing and depressed at its front end, and the doubletree fitting between said depressed portion of the bottom plate and the boxing for the tongue, and brake devices arranged for operation by said yoke as the tongue moves longitudinally,I substantially as set forth.

9. The combination with the brake-shaft and bearings supporting the same, of a brakebeam arranged in real-,of the brake-shaft, means connecting the brake-beam with the shaft for operation by the latter, and guideframes for the brake-beam suitably supported at their rear ends and extending thence upwardly at an incline, and connected at their front ends with the shaft-supporting devices, substantially as set forth.

10. The combination of a sliding tongue, a shaft, crank devices on the shaft connected with the sliding tongue, the brake-beam, downwardly-inclined guide-frames in which said brake-beam slides to and from braked position, and connections between said brake-beam and the shaft, whereby the rocking of the shaft will operate the beam, substantially as set forth. y

1l. The combination of a brake-shaft having projecting crank-arms, a brake-beam connected with and arranged for operation by said crank-arms, the brake-shaft being also provided with an upwardly-projecting cranklOO IIO

arm, a. box-like keeper above said oranlrarrn, Said crank-arm, a rack for engagement bysaid a lever detaohably engaging With the oranlhand-lever for Securing the Same in different arrn and arranged to lit and be held by the positions, and a keeper arranged to receive keeper in certain positions of the parte, the Said hand-lever for supporting' the same and 5 tongue, and means whereby the brake-Shaft for holding it in position to Secure the brnlre- 15 may be automatically operated from the shoe in place, substantially as set forth.

tongue, substantially as set forth. DAVID GRUBB.

l2. The combination with a brake-shaft, Witnesses: having an upwardly-projeeting Crank-arm, of SOLON C. KEMON,

IO a hand-lever socleted at its lower end to ft on PERRY B. TURPIN.