US850302A

US850302A - Emergency-brake for vehicles.

Info

Publication number: US850302A
Application number: US26744005A
Authority: US
Inventors: Daniel F Greaser; Harrison H Greaser
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-06-28
Filing date: 1905-06-28
Publication date: 1907-04-16
Anticipated expiration: 1924-04-16

Description

`PATENIEU ABR. 16, 1907. BAISER.

D. F. @L H. H.. GB, EMERGENCY BMK E FOR VEHGLES.

APPLICATION FILED JUNE 28, 1905.

y irnrrnn sTArns PATENT OFFICE.

DANIEL F. GREASER `AND HARRISON H. GREASER, OF PITTSBURG,

' PENNSYLVANIA.

EMERGENCY-BRAKE Fon VEHICLES.

To wl 'lu/tom, it may concern:

lBe it known that we, DANIEL F. GREASER ,and HARRISON H. GREASER, citizens of the i the main object of' the invention is the pr'o.

' between the tread of vision of an emergency-brake in which a suit able form of brake-shoe or sled isv interposed the wheel and the roadbed when the. momentum of the vehicle is to be stopped in combination with` an improved mechanism for operating said shoe or sled, as will presently appear.

In the accompanying drawings, Figure lis a side elevation of an automobile or motorcar, with a portion thereof in sectibn to show the invention in the position it assumes-when out ofuse. Fig. 2 is an'enl'arged cross-sectional view taken on` line.2 2 of Fi 1 looking in the direction of the arrow. ig. 3 is a modified form, as applied to railroad-wheels; and Fig. 4 is a cross-section of the device, sholwing the shoe or sled in contact withthe rai Referring to the drawings, .the numeral 1 designates the floor of the body of the automobile, which is provided with the

openings

2 and 3 therethrough. Secured upon the under surface of the -iioor and depending therefrom are journakbrackets 4 and 5, in which. is journaled a shaft 6, carrying the two chains 7 and 8, which are adapted to. be wound thereonto operate the shoes or sleds 9 and 10, pivotally secured by means of the right-angled arm 11 to the sleeves 12, a rod 13 bein i connected to one end of each sled and to t ie chains 7 and 8, whereby the shoes or sleds are moved so as to describe substantially an arc of a circle.

Pivotally connected to a plate 14 is anarm 15, 'whose reduced portion 16 fits' slidably within the sleeve `12 and is providedwith a pin 17, which passes through the o ening or slot 13 in said sleeve, so as to limit t e downward movement of the shoe or sled, a coiled spring 1.) being interposed upon the reduced priirtion 16, so as to normally hold vthe shoe downward Specification of Letters Patent. Application filed June 28, 1905. Serial No. 267,446. y

Patented April 16, 1907.

In order to quicken the downward movement of the shoe or sled, so that they will engage the periphery of the wheels 2() at their point of contact with the ground, we provide the spring 21, which engages a lever 22, carried upon the shaft 23, the other end of the spring being connected to a stationary bar 24, the spring exerting a tension downward. so as to reduce the proper eii'ect.

In or er to operate the devicedthat is, rotate the shaft 6 in either direction-we mount thereon a pinion 25, which is adapted to mesh with a pinion 26, carried upon the short shaft 27 and' journaled between a pair of brackets 28, the said short shaft also having mounted thereon a ratchet-wheel 29, which is adapted to be engaged bya pawlV or detent 30. In order to operate this pawl or de-4 tent so as to release .the ratchet and allow the shoes to be thrown into operation, we provide a link 31, a .bell-crank Ilever 32, pivoted in the floor of the automobile in the opening 3, and the connecting-rod 33, connected to the bell-crank lever 34, pivoted so as to opcrate .in the opening 2 in the floor ofthe automobile. lTo the other member of -this bellcrank lever 34 we connect a spring-actuated rod 35, which is operably connected to the steering-post 36 of the automobile, so as to be operated upon by a hand-"levell 37, pivoted near the top of the steer'ingpost and readily accessible by the operator of the automobile, aspring 38 being so mounted as toexert a tension as to hold the pawl or detent'in -en gagement with the ratchet-wheel.

In order to operate the shaft so as to wind the shoes or sleds in 'inoperable positionafter being in use, we provide a handle or lever-39, whichis provided with an oll'set 'end 40, carr incas ring-actuated awl or detent 4],by. 5 y n F h p y9 means o which the lever is rocked or oscillated so as to rotate the ratchet, and colise-l qently the shaft 6, so `as to wind the chains x 7 and 8 thereupon and raise the slices or sleds. As shown in Figs. 3 and 4, this form of device is applied for use upon railway-cars, and in this instance We form the slices, instead of lat segmental pieces in the other views, with a shouldered tread 42 for engage-- ment with the rail 43 andwith a depression 44 inv its projecting llange 45, which is adapted to engage the periphery of the earwhe'el 46 and form a receptacle for the Ilange 47 thereof, the spring-actuated sliding rod 12 being pivotally secured at 48 to the pro ico i IIO lieeting llange 49, whieh is adapted to he exterior of the vnr-tthvel.

Front thv foregoing desvtiption it will he seen thnt` we provide n nivnns whivh will prevent vehivles front sliding, whieh is gvnernlljtY the. vase when the vehivlv hns helen driven :1t :t high speed.

l/Yhaty we elniln :ts new, and desire to secure. hy Letters Patent, is-

l. 'lhe eonthinution with n vehicle, oll an eniergenet-hrnlie therefor, eonsisting of lnenns ndnptvd to he wedged letwven the wheels of the vehivle :intl the ground, in `:tus for holding the sinne out ol' vngngvtnent with the wheels and ground, invztus opernhlv l'roin the steering nivt'hnnisni ol' thv vehivlv l'or relensing the wedging nivztns, :nid :iutounttiv nivnns svt in operation hy' snid rvlvnsing nieuns wherehy thv wedging ntvnns :ire plzieed in eontnvt with thv wheels und thv ground.

2. 'l`he eonihimttion with it veltivlv, ol' :tu etnvrgvnvy-hrttlte thvrel'or, eonsisting of inetnis :tdnpted to hv wedged hetween the wheels ol' thv vehiele und thv ground, invuns for holding the suine ottt oll engagement with the wheels :tud ground, tnvznis opernhlv l'roni the steering tnvehnnisni ol' the vehivle l'or rvleusing thv wedgiug inenns, znttounttie nivuus svt in opvrntion h -snid relvztsiug nieatus where-h v thv wvdging nivnns :n'e phtrvd in vontnet with thv wheels und the ground, und tnettns l'orreturning thv wedging nivnns to inoperative position.

Il. 'l`hv vonihiuution with n vehicle, ol' :in emergentv-hrztlie therefor, vonsisting ol' u, puir ol' shoes :ttlnptvd to hv wedged hvtwven thv wheels und thv ground, ntenns for holding salitl shoes out ol' engngetnvnt with thv wheels und ground. tnvuns opetzihle i'roni ythe steering ntevhnnistn oll thv vvhivlv forrvlensing sind shoes, :ind :nttounttie nienns svt in operntion h v sziid releasing tnvttns wherehj' thv shoes :1re pluvvd hetween thv wheels und thv grottnd. v

4. 'lhv eotnhinzttion with u vehielv, oll :in einvrgvnot-hrztke therefor, vonsisting ol' u pttir oll shoes ndztptvti to hv wedgvd hvtween the wheels und the ground, menus for holding sztid shoes out of vngugeinvnt with thv wheels :tud ground, nivnns operzthle l'roin thv steering invelutnisni olI thv vvhivlv for relvnsing sttid shoes, menus for :uttounttivztlly wvdging the shoes helwvvvn the wheels :1nd the ground u-t'tvr satid shoes nre rvleztsvd, :ind tnvnus for returning thv shoes to inoperative position.

5. 'lhe eonihinzition with :i vehit'le, of :tn enivrgeney-hrzilte therefor, vonsisting of :L pitir olI shoes :tdztptvtl to hv wedged hetween the wheels :tud thv ground, nivuns l'or holding thv shoesout ol'vngatgetnent with t-hegrouud, spring-ziet tnttvd nienns for exerting n. tension to throw thv shoes in opernhlv position, und nteztns operaihlv front thv steering tuvelntnisni ol' the vehivlv l'or releasing the holding menus and allowingr the spring-actuated nieztns to )platee the shoes in eontttet with the wheels ztnd ground.

6. 'l`he e'oinhinzttion with at vehicle, of un etnergvney-brztke therefor, Consisting of n pnir of shoes adapted to he wedged between the wheels and the ground, ineztns for holding the shoes out of engagement; with the ground, spring-nettutted means for exerting :t tension to throw the shoes in operable position, nieitns operzthle front the steerlng nievhnnisnt of tlfe vehicle for releasing the holding inenns und allowing the spring- :iet unted nieztns to platee the shoes in Contact with the wheels und ground, und tnettns for rvturniin.r thv shoes to inoperative position.

T. The rotnhiinttion with. :t vehiele, of an vinergetiev-hinlte therefor, Consisting of o. shaft' pivoted helow the lloor thereof, apn'ir of ztrnts vztrrivd hy the slutft, :l uevtvd to enen ol` sind :nnts and projecting downwardly, :t shoe pivotnll)v eonneeted'to eztt'h sleeve. invnns tonnevting both shoes so than they operativ in unison, tnenns for holding thv shoes in inoperative position, means for releasing smid shoes, und means for autotnntivztllv plnving the shoes in engagement with the wheels und ground after they have heen tvlensed.

N. 'l`ie votnhinzttion with. :t vehicle, of im entergenev-hruke therefor, eonsisting of a situll't pivoted helow the floor thereof, a, pair of :n'nts eznried h v thv shitft, zt pair of shoes tttrried h v sind :ntns adapted to Contact the wheels und tlte ground w `en vin operable position, tnenns lor vonneeting the shoes t-ogetlter, tnenns for holding the shoes in inoperative position, niettns for releasing said shoes operiihle front the steering mechanism ot' tle veielv, mid niettns for nutonmtically phtvug tle shoes in engagement with the wuvels :tud the ground :ifter the shoes have hevnrvleztsed. l

t), 'lhv vonihintttion with :t vehicle, of an euivrgeney-hrttkv therefor, eonsisting of a shatft pivotvd helow the lloor thereof, tt pair of shoes ezn'ried therehy ttnd adapted to swing in :in :tre of it eirvle to engage the wl`evls :tud the ground simultaneously, nteztns for holding thv shoes in inoperative position, nieuns l'or rvlensing the shoes opernhle l'roni tlv steering tneehztnisin of the vehivle, :tud tneuns for nutonnttieztll)v placing the shoes in eugugvnient with/the wheels und ground zil'ter the shoes :tre released.

lt). 'lhe votnhinzttion with :t vehiele, of an emergentv-hrztlte therefor, eonsisting ofitt. shitl't pivotvd to thv Iloor thereof, :t pair of shoes -urrvd hy sztid shaft ztnd adapted to swing in :in ure ol" at virelv to engage the wlfevls :nid thv ground when in opertthle position, nienns l'or holding the shoes in inoperutivv position, uieztns for releasing the shoes operzthle from the steering tneehtmisin olI the vehiele, invztns for nutonnttieztlly plite 13o IIO . gageinent with .ing theshoes in engagement with the wheels shoes in engagement with the wheels and the emergency-brake therefor, consisting of V emergency brake therefor,

'means adapted to be wedged and ground after theshoes are released, and means for returning the shoes to inoperative position.v

. 11.l The combination with a vehicle, oll an` emergency-brake therefor, consisting of a shaft pivoted below the floor thereof, a pair of arms carried by the shaft, a sleeve connected to each of said arms and projecting downwardly, a shoe pivotally 'connected to each sleeve, means connecting `said shoes together, means for holding the shoes in inoperative position, means for. releasing said slices, means for automatically placing the ground after the shoes are released, and means for returning theshoes to inoperative position.

l2. The combination with a vehicle, of an a shaft pivoted below the floor thereof, a pair of arms carried by the shaft, a pair of shoes carried by said arms ada ted to contact the vwheels and the ground W en in operable position, means for connecting the shoes to- 1 gether, means for holding the shoes in inoperative osition, means for releasing said shoes loperable from the steering mechanism of the vehicle, means for automatically placing the sho es in engagement ywith the wheels and the ground after the shoes are released, and means for returning the shoes to inoperative position.

13.. The combination with a vehicle, of an consisting of' means adapted to be wedged between thel wheels and the.v ground, means for holdingl the same out of engagement witlithe wheels and ground, 'means operable from the steeringmcchanism of the vehicle-for releasing the wedgingmeans, and means set in operation after the wedging means is released, whereby the wcdging means is placed in enthewheels and the ground. `14. The combination with a vehicle, `of an emrgencybrake therefor, consisting of between the wheels and theground, means for holding the same outA of engagement with the Wheels vdownwardly so as to place the shaft pivoted below the iloor and ground, means operable from the steering mechanism of the lvehicle fori releasing the wcdging means, means set in operation l after the wedging means is released, whereby l the wedging means is placed in engagement with the wheels and ground, and means ior returning the wedging means to inoperative position.

15. The combination with a vehicle, of an emergencybrake therefor, consisting of means'adapted lto be wedged between theV wheels and ground, means for holding the saine out of engagement with the Wheels and ground, means operable from the steering mechanism of the vehicle for releasingwtlie wedging means, means set in operation after the wedging means is released, whereby the Wedging means is placed in engagement with the wheels and ground, and manually-oper ated means for returning the 4wed'ging .means to inoperative position j 16. 'llhe'combinationfwith a vehicle of an. emergency-brake therefor, consisting oi a shaft pivot'ed below the ioor thereof, `a pair of arms carried thereby and provided with reduced portions, sleevesfor the rece tion oi said arms projecting downwardly, as ioe car-` ried by each sleeve, means forconnecting the shoes together, a spring exerting a tension shoes simultaneoi'isly'in engagement with the wheels and the ground, and means whereby the shoes are raised simultaneously.

17. The combination witliia vehicle, of an emergency brake therefor, consisting oi a of arms carried by said shaft, sleeves iur the reception of said arms projecting downv iwardly, a slice piyotally connected to each sleeve, means for 'connecting both of said shoes, spring-actuated meansfor exerting tension downwardly so as to place the shoes simultaneously in engagement with. the ,wheels and the ground; and means opera-ble thereof, a pair from the vehicle `for releasing the exerting meansJv-hereby the shoes are placed in con Atact with the 'wheels and ground.

In testimony whereof we ailix our signae tures in presence of two witnesses.

Danis-L Gamesa. llARllSON H. GREASER.

lvlv'itncsses:

W'M. K. Ginn', D. E. IWILsoN.