US1848435A - Hand brake - Google Patents

Description

March 8, 1932,

W F.. RCHARDS HAND BRAKE Filed June 13, 1928 Sheets-Sheet l March 8, 1932. w. F. RxcHARDs HAND BHAK E Filed June 13, 1928 2 Sheets-Sheet :an ffii. son

mono innnisonih rewiinin lngf'forihnt A iiniponeoniondin iii nonno,

` 'io a'oli-ihnonglia slot in ihopin ,nndn-Spoolnl lyffornaedslt in the bottom of-the bracket..

rintimalMaur. 8,:1932- W-:LLLABDR fmonnmnsyor DREW; EW YORK, Assrenof'ro 1-HE sYmNG'ron comi A oonronranIoN or MARYLAND yBRAKE `Application yfilled iTtnre. V13, 1928. 'Serial 1`i1o.

, lhis invention relatos no hnndiofnkoe .and nioiopniiionlnily to n genion broke in Whioh ino @nani 'Winding .drnin and ninn gen1. an@

Aniioiiii.tod'nloofni Voioioiilniroialmoaniionnr-oioninnoloiootof niynvonoioneon.- ornllyioonsidorod, isiorrovido .n goniodhnnd biniioghnving n vortioni Lohninwiniiing dinlns providing oliiiok initial `.inno-inn by' moons of L thereon with av .llilint'ernal gear ioY fioinsnifdinm loii'ti aSSooinfod for .lifoinono of k'said ininloois 'anrllreoeived in a vls'oczlet inhtlev otben lsaid ninnieg'oar boing-driven by 'a rorilonl vPinion iorined 'with an onto/ndo@ holo Poi-"tion Point- 'f abiynionnton'iniho bnsoonlsine* nndiorinofl h .lannpwnildiy opening sookoivior-ioooving'afbiale staff 'orother actuating means;

' HVLii'noi-1io..n.oiiiooo .oiiny invention is io rro- V Viole ibrakenebanisnr involizing a Vertical gldruniwith ninain goor Pfofnnnbly nonfinioen'ifiioiowiihlbno .moving in unison. .on 'no ooiint' of ,intorlooking moans thereon iiizooni Said gonlnbing drivon oye rinonrno" s y Vigierl Wtli'an upwardly keiitienvdel liiib 'pfor- .iiononiorod froni'boloninto n.1oorroSPonCi-- yin.e,aio-ori.,uno in the baencasi'negnioens boing provided' connected to the lower face of said ofaoinennd'Underlying-@Ro.Pinion ion boldiggit inl'place orvsaidpinionfhubmay beheld' in agsiiiii bearingbnoning ioininofd in ,plano inaooriosrondingLaportnifeginsiholbnsolonsif g; Y i A urtlrerobjeot oi my invention-istopro- .innen Wiiiohnnd ibo Costing iS inonniodf nn nrrightgrivoipin; v,ooiiijojdin olio. nesting aiiisinpponond ondho'ld n1 at its ylower end "by aflat .key

` iiioiiioiingrnonnsfordiivingoniihoPinrhon .necesario nlbrinko ohnn 'Windingdriim and .sooiniol lnnn internal .goa-i" in-onninion .saidfpin f and'interlooked Withrespeot v,to eah 'oil or for .oronionii together, a idrii'ing .pini

ion .meshing fniihoof niningonf nniifofnioii.

yZivi Hnnnpivnfdly exhonoln bnringf'liiibfrgb .Slo ,ostina anni Said rinbleineffroolif re'- in place `While permittinglrotationthereof.

@ther objects ancladiantages of theinf'en-z tion relating tothe particular arrangement andi-ognstruction V'ofithev'arious parts become apparent astlle description ,proceedsf YReferring tov the illustrating Ymy invention, ,tho Scopo whereof iS donned or??? npioondodA .olniins Fienroli-S' .o Pian .oiono oinbofiinloni .of in?" brakenlnecbanisni.

j Figure Qisa vertical sectional View on the line 2,-'2 ofFigurel, looking in the. dirtiii" oftliearroufs.

' Figure 3 1s a horizontal sectional View on theV line 3 3 of Figurey 2, looking inthe dii reotion of the arrows. i i W' `Figure i is a fragmentary elevational View of the lower end ofthe brake elia-in winding drum and Supporting brnokoiohoiofon lookf ing from a .direction twat right anglestotlrat of FigureQ'.;y f

vligure 1s a horizontal'seotional View on noline 57o ofnigure 2, iookingiinno one? tionof the arrows l V- Figure .6 is a plan eorrespqplpg t0 Figui@ l but showing a Inodilioaton.

Figure 7 Vis a Verticaliseotional View loniltlie of the arrows'.

FigureS 1s afhoriz'ontal:sectional View Aon g Figure9 is a vfyrt"oal sectional lView .onthe Referring to the drawings detail, like parts beingclesgnated by like reference oharactors), anlirst considering tlieembodiinf'ent of inyinvention illustrated y'inFigures" ll; in;

olusivethere is ysliofwn hand brake ineohanisni leomprislng abase orbraclet oasting .Zoonnected to theV enolof a railivay Vehicle desired manner, as'by means ofmrivets'anlff extending through, respectively, tal and, Verti'al lflange of the end sillflia ofthe roiiioloor oar.. no nio. ndifioonnivllooi" nonno. l

line 7-1-7 of Figure flooking li/I'rtlre is connected by a horizontal brake chain wind-y ing drum supporting portion 12. The sides of said bracket portion 11 gradually taper or decrease in strength and width from the base web 7 to the connecting portion 12.

Mounted bet-Ween the web 7 of the base casting 2 and the connecting portion 12 kof the bracket 11 thereof isa pin 13the upper end f `which is freely received in a corresponding aperture 14 and the lower end of which is j likewise received in an aperture 15 in the su yrting. rtion 12 of thebracket 11. f T e ower en .of said .pin 13is immovablyfheld in the sup orting'portion 12 of the vbracket por-kr tion=11 y means of a preferably fiat key 16,

- which passes through corresponding apertures'l7yand 18 in the pin and supporting portion 12, respectively. In order to facilitate insertion and removal of the key 16 when necessary, one of said apertures 18 is preferably enlarged to forni a specially constructedl slot, as shown most clearl in Figure 4, which permits the insertion an removal of the pin 13 when the key 16 is only partly withdrawn therefrom.` yFrom ay consideration of the drawings it will be clear that in order to insert the pin 13 in place the key 16 may be ap# plied so that it extends from one endv only of the slot or aperture 17 in the pin, which exf tending end is then receivable inthe lower portion 19 of the enlarged slot 18, the other end of said key 16 not extending beyond the aperture 17 and not interfering with its passage to re 'ster with the opening 18. After the exten ed end of the key has passed above the ledge portion 20 which makes the extended slot 18 L-shaped in side elevation, the pin 13 isturned so that the key 16 overlies said ledge portion 20 yand retains the pin 13 ternporarily in lace.l kWhenthis yhas been accomplished. t e other end of the key registers with the other opening 18 and said key may be driven through said opening and the end turned to prevent undesired removal thereof, as indicated most clearly in Figure, 5. In order to remove the pin 13 the process is reversed, the end of the key 16 adjacent the hole 18 being straightened out and driven'out until it is flush withthe corresponding vend of ythe hole 17 in the pin 13, whereupon said pin may be rotated until the extending endof the key 16 re isters with the vertical or open portion of t e notch 18 so readily withdrawn. n Y

Rotatabl mounted on the pin 13 is the that said pin maybe 'chain win ing drum 21 and the associated shown) is connected, as by-means of a fmain gear 22, said main gear being prelfintegral therewith. In the present embodi- Y ment the drum 21 is of volute form and provided with an arm or portion of maximum radius 23 to which the brake chain (not in (not shown) passing through registering apertures 24. Upon turning of the drum 2l the-chain is Wound up at a decreasing rate, as will be understood. The upper end of said drum is formed with a non-circular pocket or notchy 25 receivin a correspondingly formed lug 26 extending. from the bottom face of the internal, ear 22. Said lug and socket portions are esirably formed elongated with opposite parallel faces, as shown n iost clearly in Fi ure 3, whereby said'elementsV areadaptedg to move in unison and force isr efficiently transmitted' from the gear 22 to the drum 21, as will be understood.

, For driving the gear 22 a pinion-27 is pro'- vided, saidv yinion being desirably entered from belowin ythe web 7 of the base casting 2'and for thatpurpose being provided with an extended hub portion 28 rotatably received in the aperture 29 in the castin 2, said apertured portion being strengthened by an upstanding cylindrical flange portion 30 forming a bearing/for the hub 28 of the pin(-y ion 27. Said Iiangeportion 30 is desirably connected toy thevupstandingv flange 8 of the casting by Webs 31 which rigidifyy both the flanges 8 and 30,' said flange 8 being preferably additionally rigidied by triangular gusset portions 32 on opposite sides o? the webs 31. The hub portion 28 of the pinion 27 is formed withan upwardly opening noncircular socket or pocket 33 adapted to receive the lower end of a brake staff or other actuating means (not shown). Said actuating means may be connected to the pinion 27 by cotter or otherV connecting means extending through the registering apertures 34 yin the hulifportion 28 and the lower end of the brake sta c For'holdin'g' the pinion 27 inplace and preventing it dropping after assembly withthe base'casting 2,y a bottom bearing bracket 35 is provided and formed with an aperture receiving the depending boss 36 around the opening 14 for the upper endfof the4 pin 13 and preferably aperture'd, as indicated at 37, to receive a depending boss 38 of corresponding size, whereby when said bracket is assembledwith the ase casting it is also held in theedesired, angular positiony with respect i thereto'without relying on the connecting rivet 39Y for that purpose. Said bearing bracket is formed with a spud or trunni'onyportion 40 which is 'preferably tapered,

as illustrated particularly in vFigure 2, and lits in a corresponding aperture in the pinion iis feo,

27, thereby` providing, in eiTect, alower thrust bearing for saidltrunnion and holding it in proper relation with respect to the casting 2 and gear 22. In order to prevent undesiredupward movement of thepinion 27 a collar or annular iiange portion 4l ispreferably provided thereon.

Referring now to the embodiment of my invention illustrated in Figures 6 9, inclusive,

a construction is there disclosed in which a base or bracket casting 2qa is lprovided with depending bracket portions 1la connected by a lower horizontal portion 12a which supports the lower end of the pin 13a as in the previous embodiment; Said pin 13a', however, is shown unrestrained from rotary movement in that la supporting' cotter 16a underlies the lower end of said pin rather .than extending through `the same as in the previous embodiment.

f The brake chain winding'drum- 2la is, as in the previous embodiment, preferably formed separate from the internal main gear 22a and said members are connected for simultanenous rotation by the lug Aportion 26a extending from the lower face of the main gear 22a, as inthe previous embodiment. Inr the present embodiment, the hub of the lugk portion is extended beyond the lug 26a as a frusto-conical centering projection telescoping in the hub ofthe winding drum 21a.

rlheuppei' end of the pin 13a is received in a 'pocket formedby a depending cylindrical fiange S'which, in the present embodiment, lies beneath the upstanding iiange 8a of the base casting 2a. The web or floor 7a of the'base casting 2a may be lightened as Vin `the previous embodiment by a'plurality of apertures 42, as illustrated. Y

In the present embodiment the pinion 27a may be entered from above the web 7a of the base casting and therefore it is unnecessary to provide a bracket correspondingto. the

bottom bearing bracket 35 of the previous embodiment. Said pinion 27a in the present embodiment, however, is formed with an eX- tended hub portion 28a preferably provided with spaceda'nnular collars 41"* leaving a bearing or journal :portion 43 therebetween.

Surrounding said bearingportion 43 is a pair. y. Y, of bearingblo'cks 44'` formed with out-stand` Y ing lugs 45 at their ends which'serve for conf necting them inthebearingvpocket 80a, as by rivetsl or other connecting means 46 extending Athrough said lug portions 45 and the adjacent walls of the pocket 30a. The curved'y sides of thebearing blocks 45 are preferably tapered, as indicated at '47 in" Figure, to

provide'ga good fit for said'blocks in the pocket portion 30a. As in the previous ,em-

; bodiment, they bearing pocket2 0a is connected .to the upstandingflange 8ab by a web 'or flange 31a and said iange 8a isy desirably reinforced by triangulargusset portions 32a' spaced on either side of the web yportion 31a. As in the of the pinion QTais formed with a lllnrl-Cir-V ycular preferably substantially ySavant Pimkiet4 serving te. mount Etheloaver end of the rsf-nJ aid Pivot ein serpentdrnni piveepmws previous iembodilnentthb LBO'GQQ 2.8.1? 'i ing not .oniythe 'drum ,y but the main gear wndi is .preferably internal and non-integral therewith. The dnunland nein ,gear ,are

adapted te more" unSQn by theirovison oflalug o n 01.1.@ orf-the membersextending. into* a correspondingpocket inthe other, providing :an interlock therebetween 'The mein gearis desirablydriven byfa pinion with'an upwardly extended hub Eportion 'pocketed to receive thev lower end'of- ,thecibrake staff ,or other actuating meins.A Said .pnenjmay `be entered frein v106km"anclhe ,c bottom bearing Ybi'faclnat withga Spud insertedin the end'V of said pinion vor by asplit `rbush-v ing 1ror bearingf'bloek held in ,place4 in c. vbase casting. The pin-upon which is rotat-v ,in place byLa ably mrnuited the I main gear and brake chain y givindingdrum .may be either.supported With'- out being prevented from rotating or may beheldin position and ,prevented l.from rotac .tioniby a flat key Ipassed through a slot in the lower end of the pin and a specially formed slot in the bottom of the housing' whereby said pin may be readily inserted and removed as such becomes necessary.

Having thus described my invention, I claim: v

1. Brake mechanismcomprising a casting with a depending bracket portion, a pinv between said casting and bracket portion, a winding drum rotatably mounted on said pin, amain gear on said pin, means for causing said gear and drum to move in unison, a

pinion meshing with said gear, a bearing'fpoltion integral with said pinion, said casting being formed with an aperture receiving said bearing portion of the pinion when enteredV i from below, and a bottom bearing bracketv for said pinion extending 'therebeneath casting, a bracket portion depending there- T from, a brake chain winding drum and main gear rotatably mounted between said casting and bracket portion, a pinion meshing with said main gear, an integral hub portion on said pinionextending upwardly into and rotatably received in said base casting, and a c bottom bearing bracket forsaid pinion con'- iao i nectedto'thelower face of saidl casting and q fgo c `2.,Brake mechanism comprisingva base` formed with a ksupporting Spud extendingy into the end of the pinion.

3. Brake mechanism -comprising a casting with a depending bracket portion, a pin between said casting and bracket portion, a winding drum and gear rotatably mounted on said pin, a pinion meshing with said gear, a bearing portion integral with said pinion, said casting being formed with an aperture receiving said bearing portion of the pinion when entered from below, and a bottom bearing bracket for said pinion extending between said casting and gear.

4. Brake mechanism comprisinv a base casting, a brake chain winding darum and main gear rotatably mounted in said casting,

f a'pinion meshing with said maing ear, and inrISK tegral hub portlon on said pinion extending upwardly into and rotatably received in said base casting, and "a bottom bearing bracket y:for said pinion connected yto the lower face of said casting above the gear and formed with a supporting Spud extending into the end of the pinion.

5L Brake mechanism comprising a base casting formed` with a depending bracket portion,a pin extending between said casting and bracket portion, a key passing through the lofwer end of said pin and through slots in said bracketportion, and a winding drum and main gear rotatably mounted o'n said pin, the slots in the bracket portion'being so formed that the pin may be removed upon partial removal only'of the key therefrom and rotation of the pin.

In testimony whereof I aix my signature.

WILLARD F. RICHARDS.

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