US1446227A - Hand brake for railway cars - Google Patents

Description

Feb. 20, 1923. 1,445,227. F. B. TOWNSEND.

HAND BRAKE FOR RAILWAY GARSA FILED SEPT,5, i919.

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Patented Fish. 20, i923.

FREDERICK TGWNSEND, 0F CHICAGO; iLINOIS, ASSIGNOB 0F CHAZY, NEV YORK. p

'ro 'winni/aia H. Minna. i

Hain) nnnirn non RAILWAY cans.l

Application filed September To all "io/ima effi f/mz/ (fo/)zown Be it known that l, Fiinoniii'cir l. "lmvivsiano, a citiaenof United {elta-tes. residing drawings, forming a part of this specifica-v tion.

This invention relates to improvements in hand hrakesfor railway cars.

rlhe ob'ect of the invention is to provid an etlicient hand brake especially adapted for Hat cars or logging cars wherein the operating nienihers inust he conlined within piep determined relatively narrow limits in order y to clear the lading7 which brake will oe easy i to operate and with safety to the hrakeman.

ln the drawing forming` a partoij this specification` Figure l is a partial top plan view of a flat car showing my improvements in connection therewith. F ig. 2 is a side elevation or the construction illustrated iny Fig. l. Fig. 3 is a horizontal sectional view taken substantially on the line 3 3 oi Fijn'. 4l. Fig. 4 is a vertical sectional view taken substantially on the line l-l of Fig. F ig. 5 is an end elevational view oi? the structure illustrated'in Figs. l` and 2. f And Fin'. 6 is a'detailed sectional view taken suhstantially on the linee-6 oi Fig.

ln said drawing, l0 denotes the flooring` of a flat or logging car, 1l the end sill and 12 one of the side sills. Said carie provided with the usual end grab irons l3,`side step 14, side grab iron l5 and top grab iron 1 6. f rlhe improved bra-he, as shown, comprises, broadly, a vertical `chain windingor brake staff, A. a housingor casing B, a ratchet wheel C, an operatingl lever or handle i pawl E, a locking dog F. a spring (l. a plate ll, and a release'lever K.

The housing B is of generally cylindrical form and has a detachable or separable boltoin wall l? to permit assembling oil: the parts and said housing is further provided with a bottoni flange 18 by which the saine mayv he bolted or secured to the end sill ot' the cai'. i

rEhe stall A extends vertically and is suitalilv jourualed at its lower end and may he provided with the usual chain winding` drum or hub. t its upper end, the stall A.

5, 1919. sei-iai no, 321,757.

provided with a squared or other non-circuf lar section 19 disposed within the housing B.

The ratchet hollow huh 2O adapted to fit the iion-circular section 19 of the staff so as to loe rotatable in unison therewith. Said hub 20, however, is made long enough so that' there is normally a spacey or clearance 2l hef tween the upper wall osaid huh and the` top of, the stall A; The ratchet wheel C `is held in its uppermost position by the Cr acting through the plate H hut it will yhe evident thatr said ratchet. wheell C may he depressed or slid vertically with respect to.` the staff il against the action of the spring. The operating handleqor lever D Inovesin a horizontal plane as indicatedhy the arrows in Fig. l. Said lever is provided at its inner i `end with an annular sleeve QQadapted to lit i the huh 20 and thereby provide for the os-y cillation oi? the lever. Said lever is also provided with oppositely extended arcuate flanges 23--23 which are arranged to cover the yslot 24 in the housing B ,in which theA lever D moves and thereby, prevent dirt or other ioreigii matter gettingl within the housing. The pawlF is of the gravity type and is pivotally supported on apiir or holt 25` carried by the lever l), said pawl cooperating;` with the radially arranged ratchet teeth 26 in the upper face of the ratchet wheel C.

To hold the ratchet wheel and' staff A kagainst reverse rotation, the locking dog F is provided which is also of the gravity type and mounted on a pin or holty Q'supported in the outer wall of the housing B and the transverse flanges 28. The ratchet wheel C is normally held in its uppermost position by the springGfas heretofore explained. To

release the yhi'alrfn'the lever K is elevated about its pivot 29 sor that the inner end thereof engages and depresses the huh 2O of the ratchet wheel. ratchet wheel downwardly and ultimately will. disengage the ratchet teeth 26 from the pawl Fiand dog F. To insure this operation'` the dop' and pawl are each providedl `with a shoulderas indicated at P30 in F ig. G

which is adapted to engage with an adjacent flange or wall 3l ol the housing so as to liniit they downward movement ofthe pawl or dogl as clearly illustrated in Fig'. G. ln actual practice, l `would so design the said shoulders 30 that .the pawl will he held or restrained prior to the dogl so that, as the ratchet wheel wheel C is. providedwith ar vertically extended spring This of course i'orcesthe i f Will be spaced above tthe floor C is depressed, it will firstv become disengaged from the pawl and subsequently from the locking, dog. By this arrangement, danger oi' having tlieoperating lever suddenly swung around during the release is avoided and the operating lever will be positively free from the ratchet Wheel by the ytime the latter is released 'from the locking s Will be evident from an inspection oli thel drawings talren in connection with the preceding,1 description, the bralreniaii can easily operate the lever D while standing on the step 14;. The arrangement is suoli that severalfinches clearance are provided for the bralrenians hand between the lever and the ioor of the car and also between the lever and the under side of the load which approximately eight inches level at the end of `the car. TheA release lever is so positionedv that it can be conveniently grasped by the lbralreinaii and all parts are so located that they do not project beyond the outlines of the car.

I claim: 1

1. In a brake of the character described, the combination with a vertically disposed rotatable element for effecting` Winding of a flexible member, of ahousing adapted to be secured to a horizontally extendinginember, a single `faced ratchet Wheel Within the housing, rotatable in unison with said element, a horizontally swingingv operating; lever having `one end movable about said element, a vpavvl carried between the ends of said lever cooperable with said ratchet Wheel, a locking dog cooperable with said ratchet Wheel, and means including; a second lever, for effecting relative separation of the ratchet Wheel on the one hand and the pavvl and dog on the 'other hand to thereby release said'element, said paWl and dog both being located on lthe same side of said ratchet Wheel. f y

2. In a brake of the character described. the combination with a vertically disposed rotatable element Jfor effecting Winding of a flexible member, of a housing' adapted to be secured to a horizontally extending ineinber, a ratchet Wheel within the housing ro# tat-able in unison With said eleinent and vertically movable with respect thereto, an operating lever, a paivl pivotally carried by said lever and cooperable with said ratchet Wheel,` a pivotally mounted locking' dojaj cooperable with said ratchet wheel, means normally retaining,- said ratchet Wheehpairl and dog in cooperative relation, and ineans or effecting relative separation of the `ing to the exterior supporting;- said ratchet wheel in' oprrative position, and means for depressing' saidl ratchet Wheel to thereby disengage it from said pawl vand, dog.

Al. In a brake for ilatcars and thelihe, the combination with a vertical brake staff, a housing adapted to be secured on top of the car, a ratchet Wheel disposed within said housing and rotatable in unison with said staii', spring,` acting against said ratchet Wheel to normally hold it in operative position, an operating` handle cscillatably mounted on said ratchet vWheel and extendpivotally mounted on the handle cooperable mounted Within the housing; also cooperable with said ratchet Wheel, and a release lever independent of said operating handle pivotally mounted on said housing' and adapted to depress said ratchet vclieel against the action of said spring .and thereby disen gage the ratchet Wheel -roin the pawl and dog.

5. In a. brake of' the character described. the combination with avertically disposed rotatable element for effecting Winding of a flexible member, of housing;v adapted to be secured to al horizontally extending1 inemlber, a single face ratchet Wheel within the In witness that I claim the oirioingyg I' have hereunto subscribed Amy naine this 1st day or' Sept.,` '19.19.

FREDERICK Bfltl TNSEND,

said ratchet, a springl normally of the housing,v a pavvl.

with said ratchet Wheel, a leclri-ng dog`

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