US1331305A - Valve-lifter - Google Patents

Description

E. F. WILKINSON, III.

VALVE LIFTER.

APPLICATION FILED IuIIEIz. I9I9.

Patented Feb.v 17, 1920.

EDWARD F. WILKINSON, J R. 0F GRAMERCY, LOUISIANA.

Specification of Letters Patent.

VALVE-LIFTER.

Application ledJ une 12, 1919. Seriall No. 303,580.

To all whom fancy concern:

Be it knownthat I, EDWARD F. ViLKiN- son, Jr., a citizen of the United States, residing at Gramercy, in the parish of St. James and State of Louisiana, `have invented certain new and useful Im rovements in Valve-Lifters; and I dolhere y declare the following to be a full, clear, and exact description of theinvention, suchas `will en-` pertains to make and `use the same. i

My invention relates to improvements in devices for Vwithdrawing the various parts of valve mechanismsfrom their seated posi able others skilled in the art to which itaptions, and it relates more especially to .the removal of valves and their seats from interand effectively when desired, either for purv poses of cleaning or repair.

`Such parts are `apt to stick very hard in their seats, andto effect their removal considerable power has to be applied in a con` venient' way.` VSuch results are procured by the hereinafter described device.

Reference is `had to the accompanyino` drawings, inwhich likeparts are indicated bysimilar reference :symbols throughout the several views, andin whicht- Figure l Ais a "sectional elevation through lthe valve casingand its contiguous parts, the valve being shown in elevation andparts of the valveY lifter being shown in section, the valve' easing being shown Vin the fixedl position;and"` i d Fig. 2 is a similar view, but showing the parts of the valve casingand valvein elevation, and also showing the lifter inelevation, but with the valvecasing lifted and the lifter in thel closed position.

A represents the cylinder casing bored as." at a. to receivethe'valve casingB, which is providedwitli thevalve sea-t Z9 and the central sleeve b ada ted to receive the steinf C of the valve This valve casing is held in` placeby the screw collar Bffand the packingring B2.`

D represents the valve stemhead, which is cup-shaped as shown in Figi, and into this head the pinl4 projects from the valve stern.

F represents the valve spring whiehbears at one end on the valve stem head, and at the other end on an annularplate or washer G mounted above the valve casing B.

So far all of the parts are of standard make and are merely illustrative of the action of the apparatus, and these parts may be changed without in any way affecting the invention itself, which will now be described. i

The lifter comprises the main framev or yoke H, provided with legs 7L to which are adjustably attached the shoes H, as by the pins i passing through the holes LO in the legs 'z, and in the shoes H. This frame is Patented Feb. 17, 1920. p

neath the flange al of the stein head D, and

to engage the first coil of the spring F.

The claw K is made somewhat longer so as to engage the two upper coils of the spring F, so that these upper coils of the spring will afford a wide bearing in the operation of lifting, and will ordinarily obviate any danger of the claws pulling lhrrugh or bending the flange d of the stem The draw-bar J is reciprocated by a toggle joint arrangement comprising two bell crank levers M and M', hinged to the head of the drawbar J as at m, and having their pivots m connected bythe links L and'L, respectively, to the main frame l-l. To the upper arms of the bell crank levers M and M the hand levers N and N are pivoted, as at n, and these levers are connected together by the link O, and are provided with handles a the open position, as shown in Fig. l, and at the same time the dravwbai' J is ordinarily thrown to the lower or initial engag-` ing position as shown in said figure, `by means fof the coil spring P. i

l Inl order to operate the device, first re,`

move the rocker arm, not shown, from'over the valve to be removed, then unscrew the collar or bushing which holds the valve casing in the cylinder, `and after this apply aV The handles `are ordinarily thrown to unscrew the collafr .or bushing .'Bs.' More overrin using-the` toolthere isvno danger of Y bending :the .valve stems. "or' injuring fthelifter directlyover the valve stem with the legs set firmly on the cylinder, the shoes, of

course, being adjusted to the lengthof the Y- valve stem which is'l beingjoperated upon;

then take'a pair'pliers and turn the valve until the pin E is on the same angle as the claws K and K". Then turn the valve spring until the rst coil is under the flange l opposite the claw K and press this claw into the springnnder the iirst coil, then press the long claw` K` into Athe spring under" the second coil. After the clawsKvand K are in engagement beneath the coils of the spring; aforesaid,y andthev legs ofthe frame: in the` proper position,V squeeze the handles 'n' together and this will cause theftogfglel joint arrangement to liftthe y valve' casing reeoffits seat, andwin a position to be convenientlyhandled by the operator If .the stemfheadD threatens to bend, vremovefit and thefvalvc `springuand apply a special steel washer beneath the pin E. Any

amountfof pressure can Vnow bel s applied,

without.causingdamageg until the' valve and the, casinghave been extracted:

By having the. legs of'y the mainframe ad 4` justable,- the lifter Emay -be quickly adaptedn tol any ordinary length of valve stem ;but| it willA onlyqbe' necessary to adjustfthelegsronce for 'any` givenl automobilefor once for the same length@f .The herein.` described device is Aespecially adapted fory use with various "standarditypes of automobiles auto trucks, orthe like,` and i may be readily vattachedto almostiany kind of internal rcombustion :engines inA which-1 there is Aa proj ecting valve .stenn The A-he'reinldescribed device is liglitfiandr cheap,V and ofsuch dimensions that it maybef carried'oniany tool boxor'kit, ormay. be

y any given f types of automobile, engines#- where `rthewva'lve stems areofY substantially f ping means carried by said bar7 and a tog-` gle Vjoint arrangement carried by said main frame, and comprising a pair of oppositely disposed bell crankflevers each-pivotedat itslzlower,` end ytol said draw' bar, a pair of hand levers havingtheir lower arms pivotedy toi the -upper arms of the said bell. crank leversyand .the upper arms of said hand levers terminating '.iirhandles,V the said hand levers beingpivoted together between said' upperV and lower: arms, and Alinks: each hinged 'atone end .to'said ramefand at theother l`'end forming a pivot Afor4 thewcorresponding bell crank ylever, substantially as described.

Q .Apparatus of thecharacter described comprising a. mainframe'provided with.y

downwardly. projectingbearing legs,v a draw bardshdably `mountedin saidvframe, grip pingfmeansf carred by said bar7 and .a tog-.. gle: ]o1nt.arrangementy carried bysaid main rame, :andi comprising. a pair of oppositely disposedibel-'Lcrank llevers. each pivoted at its lower end to .saiddrawebar, aipair off" used-at the ,garagesfv It operates veryquicklyf and effectively and does-not require the use:` of any additionalitoolsexcept a wrenchto springs-,for.` stemt' headsyor of cracking: or;

breaking the valve casing.

It Vwill befseen thatthe. device operates: with a straight. pull in the idirectioni of the axisof. thelvalvestem and-v consequently in the-direction of thea aXis'ofthe casing, and

that. there: is no bending. tendency whatso- These and various other advantages of the:`

herein -ldescribed construction cwill'rbe 4-obvious toany practical mechaniccaccustoined to' operating. devicesE of thisA characteraf It: willfbeobvious that .variou'smodificaff tions might. beumade in fthe; herein described apparatusiand i in =the construction,l combinae tioniand arrangement of)` parts'awhich; could? be' y used?v withoutV fdeparting lfrom fthe'spirit' hand'levers-'havin'g their lower arms pivoted to-thel .upper arms: ofthefsaidbell crank i levers, and thefupperarms Aoffsaid hand leversy terminatingfinl handles7 the :sa-idxl h and levers beingpivoted together `between saidupperf; and :lower 'armsy and linksy each hlngedlati one; end-.tosaid frame and at the other;` endl iformingza i' pivoty.for the correA sponding bell crank lever with a coil spring.

for.- .zrestoringf .tl1esaid .toggle joint mechanism toithe"initialfposition;substantially as described. Apparatus of thefcharacter.described comprising. a `maine; frame .provided with.

downwardly projecting adjustableflegs; a drawfbar l slidably. Amounted in said frame,

hinged claws carried'by saidibar, and a togf.

gle i] oint.. arrangementl carried by said .main

frame,y 'and .comprising a pair 'of op positcl y disposed bell crankvlevers Veach pivotcd4 at its. lower. endto sa1d'drawbar, a pair of hand levers :havingtheir lower arms pivoted to thehupper arms'. ofthewsaidi'bell crank levers,fand.the .upper farmsV of said hand leversfterminatinginhandles, the` said hand leversrbeing l-pivoted` together between said upper land lower arms, and links each hinged*` at one: `end tot said frame and `at lthe other-'zendrforming'La pivot for the fcorrespondin :bell crank lever,r substantially asdescrlbe z2' 4. Apparatus of the character described, havin their fulcrulns connected to said comprising a main frame provided with main trame, With arms pivoted together and downwardly projecting bearing legs, a draw connected to the free ends of said bell 10 Vbar slidably mounted in said frame, claws cranks, with means for forcing said arms 5 carried by said bar, and a toggle joint arapart, substantially as described.

rangementcomprising a pair of bell cranks pivoted at one end to said draw bar, and EDWARD F. WILKINSON, JR.

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