US1105236A - Hand-wheel locking device or brake. - Google Patents

Description

F. ARNDT. HAND WHEEL LOGKING DEVICE 0R BRAKE.

APPLICATION FILED FEB.28, 1914. 1,105,236. Patented July 28, 1914,

THE NURRIS PETERS 66., PHoTv-LITHD.. WASHINGTON. D, c.

N UNITED OFFICE.

TO'aZZ whom it may concern y FRANKLIN n. ANNULGALION, onro', As'sreNoR "ro THE GALION rnoN Worms a `Be it known that I, FRANKLIN E; RNn'r,

,av citizen of the United States, residing at Galion, in the county of CraWford and State ll of Ohio, haveinvented certainneW and rusea specification;

ful Improvements in I-Iand"-Wheel Locking Devices yor Brakes, of Which theffolloWing lis This invention"comprehends certain neW 10 and useful` improvements infroad machines vof the type Which employ .yaWheeled frame- Work, draW bars suspended therebyfand piv- Jotally'mounted sothat they maybe raised at their rear ends to the samel elevation or one higher'than the other` ask required,a circle carried by( the draW ybars `and rotatably adjustabley and a mold --board 1 Iand blade cari ried kby the circle, the kmeans for `elevating AtliedraW bars comprising suspension links, yrelatively large hand Wheels disposed 1n ver-` tical planes to rotate about horizontal axes, and gearing ,connection'betWeen the khand Wheels and vertically movable rackbars or theliketofWhich thevupper yends of the susy machines, an ,operators platform 'is provided immediately backofthese hand Wheels a and lit' is customary lto vprovidebrakes enlgageable yWith theperipheries ofthe hand,`

Wheels and usuallyreleasable by meansof foot treadles, Whereby the operator ymay vplace his foot upon either lof these treadles and release thebrake so as to`-permit the hand Wheel to turn in a ydirection to loWer theldraW bar on oneside or. onuboth sidesy of4 the machine, or to be turned bythe operator 1 in a directiony to raise the draW baryor draW 'bars according to Whether one or both of thev hand Wheels are manipulated@k Ity is.y this hand Wheelbrake Which forms` they subJect matter ofthe present invention.

f pointingdirectly toward: theaXislor center of the Wheel, Whereby the Wheel Will be very `firmly heldin place and Will effectively re- ;sistany pull on the handWheel in either direction, positivelynot yletting go untilrev f leased by the yfoot treadle,"Which releases it c very easily. v f

`A further objectofthe inventionfis a handY wheel brake-of this type,-the parts of Which 3 ",'Specicatonff Letters ratent' constructions, yarrangements and combina- `pension links areconnected. In this type ofA 7HAND WHEELLommerDnvrcn on BRAKE. e*

And the'invention alsozaims to generally able.f. .e c e Withthesel and other objectsV in vieW,-as

--Will' more fullv appear as the description proceeds, the linvention consists in certain tionsof the parts that I shall hereinafter fully-describe and claim.

e ,y 4 y, A l y Patented July 28, 191i.4 App1icationmedrebmary28,1914., sena1No.s2 1,`76a.

are strong, capable ofbeing easilymade and.`4`r `installedand not liable *toy get. out ofl order.

improve devices of-this class so'as to render 'them more useful and=commercially desir-:80

Q For a fullunderstanding of the invention,

reference'is to be had tothe folloWing descrlptlon and accompanying drawing, in.; fwhichi i Figure-..1 `is a sideelevation of my inven- `tion showing 1t'1n applied position, some yof the parts of a road machine being s'hoWntin Lfull lines `and others in dottedlines. yFig. 2r; @is a longitudinal sectional vieW of the device. Fig. ,3 is atransverse section on the line 3-:3 `ofFig. 1-. Figli is aV fragmentary sectional vieW showing the `brake shoe in engagement Withthe rim of the hand Wheel. i c j j "1 Corresponding and like .parts arereferred toin the following' description and design nated in all of the vieWs of they accompanying drawing, by like reference characters.

c Referring tothe draWing, the `numerall 1;;

designatesone of the arched sil-ls or side bars ,of -theWheeled framework of al road machine`,land 2 designates one of the drawbars ldesigned to support the-,rotatable circle 3 carrying the mold board 4 and the reversible;

blade 5; 6 designates one of the suspension linkshereinbefore referred .to Which .is connected at its upper end to a verticallyimovable rack bar 7 i operated by meanslof the large yhand-Wheel 8 asis customary `in this typeof machine.

vIn lorderfto positively and securely hold the handWheel as against,accidental move-l ment, I provide myk improved friction locking device or brake, uit being understood,1f; of coursewthat there isvone of these devices Vfor each handjWheeL'but as they are ideni" ticalin yconstructiom-a description of one of `them will suflice forlbot-h` This device includes a casing 9 Which is substantiallyfrec-"f .tangu'lary in thel-fpresent'instance, and provided Withwanattaching member '10 `formed yto receive a bolt or other fastening device by Which-it is secured .to the arched sill lon the downwardly inclined orV obliquely dis# posed rear portion thereof just back of and below .the .hand Wheel 8., the .Casing ybeing so disposed' that the preferably Wooden 'friet-ion.

ent embodiment of the invention, receivedy Within a socket l2 formed in the upper end lo.i""afcastiiig whichA also includes a' longitudi` .nally 'disposed :rack :bar A18, -the rack bar and vsocketand the ibracing-Web'rll Which connects the tivo at their juncture, constituting the plunger `of.the @brake The teeth "15 that are formed on one edge of the rack bar 13 below the web 1d meshnWith-the teeth of aspiir .pinion 16 ,journaled'ivithinthe lower open end of :the casing '9on a vtraifisversely kdisposed spindle or -axis 17 and the sleeve 'S18 .of `this spur pinion 16 lhas-secured to it in any desired Way, as by the lock Fjoint'19, .one .endlofia foottreadle-QO disposed -to one sideof'the casing and extending rearwardly thereform, as Ybest illustrated in Fig'. In the normal set positionA of the brake, ithe releasing treadlelQO extends in substantially horizontal positionf-j st :above and spaced from the operators. platformil.

302g l "llhe .rack bar \13fis preferably in :the form of an I ibeam, asdclearly illustrated -in the drawing, and its lower end -passestlirough Va divided #ledge orpartitionQQ formed Withinilthe vcasi-ng i9 near thI'eyloWer` open end Ligsjthereof and 'integral .with the rear and side Wallsl of r`the saine. Mounted Within the :casing l9 are two coiled expansion springs 23, the `saine -being disposed respectively on .oppositesides ofthe channeled rack bar 13 Noland 'having w theirf'lower ends resting vupon the ledge 2 2A while their upper ends'press.y

Yupon` the lower `side ofl thefsocket member f vl2, so that Yit 4will ybe 'understood that the tension` of #these springs is exerted upon y4.5 -thefplunger in a direction to move -it towardv the-'center of the hand Wheel 8 and to press lthe brake` shoe -or block "11 positively and iirmly against the rim of the wheel. T hus, the' Wheel Wil-l be EIirinly held and -posilISO vtively prevented 4from accidental movement in either direction. The plungeravill effectively resist a pullonthe hand Wheel either Way and will positively not-'let go luntil the operator presses downwardly upon the foot l'treadle 20 .which Will manifestly turn the spur pinion 16 `and ldraw the rack -bar andthe` other parts ofthe plunger downwardly against the tension ofthefexpansion springs 23, this operation E'being very easily accomco pushed. t

From the foregoing vdescription '1in connection lwith :the accompanyingdravving, it

will be seen lthat I have -provideda very '.-simple and eiicient construction offriction 1locking device 0r 'brake for a road ygrader parts capable of" being readily assembled and not liable to get out'of order.4

While the accompanying drawing illustrates what I believe to be the preferred embodinient of in 7 invention .it is to be Linderw y n, 7 i

stood that the invention is not limited thereto, `but thatvarious changes may be made 'in the construction, larrangementsp and proportions of the parts Without departing :from the scope of the `invention as Idefined 4in .the-appened claims. v

'iWhat I olai1n,iis: y f :1. A brake of the charaQterIdeSCribed, in-

4cludinga plunger, Va casing in which said plunger is movable, the .plunger tibeing provided With rack teeth, a pinion `meshing with said `fteeth and journaled in .the casing,

and a.-foottreadle on theoutsideof'the casting and connected with said pinion to :turn -theL-same. f

2. Afbrakeofgthe kcharacter' described, inoludinga casing, a plunger movable ,therein `and embodyingl a rack bar mounted medially of (the casing, `the casing beingprovided 'with a divided fledge through whichl the rack bar isl movable, expansion vsprings sion of-salid springs.

'-3. A 'brake of the characterwfdescribed, comprising :a casing formedV near its lower'4 end with a 'dividedA ledge, `a lplunger lmovaliile ujn said y,casing-and including a .rackwbar movable through said ledge land alsofineluding a socket, a brake shoe mounted lin .said

isocket, coiledA expansion springs mounted-l kwithin` the .casing on `opposite sides :of said rack vbar .and resting upon said @ledge 'and bearing against the socket, .a pinion mounted Within'the casing and meshing iwitliwsaid macksbar, and :means fortuifning said pinionwhereby-.to ymove the plunger yin the casing against the 'tensionl ,of Asaid springs.

f 4. brake of` the character described, Acomprising' .a casing, -a plunger 'movable thereinlandconsisting of a' `casting having a socket at one yend, abar of I beam forma- A.tion formed on one ledge with teeth, and a brake shoe mounted-in the .socket,`=tlie casing beingfformed near one end With a di-A vided Iledgea-nd the bar be'ing movable through said ledge, a pinionjournafled in said casing and meshing lwith theteethof said bar, and a foot treadle operatively oo nnectedvwith said p'inionand disposed to one .side of the casing on the exterior thereoi as `and for thel purpose setffforth.

A:5. A brake ofthe'character described, fincluding a casing, a. plunger movable therein and embodying a rackfbar vmounted liriediallyy. of 'the casing, expansion 'springs mounted on opposite sides of said rack` bar Within the easing and bearingA against the plunger, and reacting against portionsof the casing, and ymeans for moving said plu'ngeragainst the tension of said springs;4

6.Y A brake ofthe character described, in

vcluding a casing, a plunger movable therein and embodying ay rack bar mounted medially of the casing7 expansion springs mounted on opposite sides of said rack bar Within the casing', said plunger also embodying a brake-block receiving-socket,k andv the springsy bearing against said socket andreacting againstportions of the casing, and means 'for moving said plunger in the casing` against the tension of said springs.

7 A brake of the character described including a casing, a plunger movable therein yand embodying a rack bar, a pinion mounted Within the casing and meshing -Withsaid rack bar, and a foot treadle operatively connected to said pinion.- l

8. A brake of theJ character described com-k prising aeasing formed near its lower yend Witha divided -ledge,`a plunger movable in vsaid casingl andincluding arrack bar mov-` able through rsaid "ledge, coiled expansion springs mountedvvithn the casing on oppo site sides of said rack bar and resting upon ylock joint connection With said sleeve, ae

and for the purpose set forth. f y

In testimony whereof IIfailii; my signature in presence-'of` tWo Witnesses.

' FRANKLIN E` ARNDT. A

Witnesses: y f

GARDA HOLMES, i MARY E. WORLEY.

Copies of this patent may be obtained for ve cents leach; by addressing the Commissioner ofvrPatents,

Washington, D. GJ f

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