US1648097A - Valve-spring lifter - Google Patents

Description

Nov. 8, 1927. 1,648,097

F. O. WISWELL `VALVE SPRING LIFTER Filed Jan.6, 1927 lllllllllllllllllf.

JNVENTUR.

Perry' Oz'f Mn/wei;

'in `a ready manner.

Patented Nov. 8, 1927.

rascal PERRY" OTIS WISWELL, OF WAGO, TEXAS.

verve-eremo Lrrrnn.

Application :filed January 6, 1927. Serial No. 159,393.`

The invention relates to a valve tool for use in connection j with internal combustion engines, and more particularly totheclass of Valve spring lifters. l

The primary object of the invention is 4the provisionof a tool of this Character,where in the construction thereof enables its adjustment so asy to accommodate various sizes of valvesV and theirl springs within an internal combustion engine, so that the spring l for each valve can be lifted, to permit the withdrawal of thevalve with dispatch and Another object of the invention .is the provision of a tool of this character, wherein it is readily adjustable, so that the same can be applied` to the valve and the support for the springof said valve and maybe locked to sustain the valve spring compressed, to permit the freeing of the valve when mounted Within the internal combustion engine.

Another objectof the invention is the provision of a tool ofthis character, wherein the construction thereof is novel y1n form, so

as to render the same readily adaptable for varying styles of valves, springs and supports therefor. l j

Afstill further object of the invention is ,the provision, of a tool of this character, whereinl the gripping lelements or members' 'thereof are'readily and .easily adjusted to engagethe parts, that is the valve head j whether itbe perforated or slotted and the spring seat, so that the valve can be freed when within'the internal combustion engine, without excessive labory on the operator or user of the tool.

A still further object of the invention is the provision of a tool of this character, which is extremely simple in construction, possessing butfew parts,these being readily adjustable,'thoroughly reliable and efficient in its purpose, stron sive to manufacture. j

With these and other objects in View, the invention consists in the features of construction, combination 'and arrangement of parts, as will be'hereinafter more fully described, illustrated in the accompanying the claims hereunto appended.

f views in the drawing.

part of thev g, durable, and ineXpendrawingv disclosing the .preferred embodiment of the invention and pointed I out in In the accompanying drawing. Figure 1 is a fragmentary sectional elevation through aninternal combustiony engine showing in elevation its valve, valve spring and rest for the latter, kwith thevtool constructed in accordance with the invention applied.k

Figure 2 tool alone. i

Figure 3 is a detailed elevation of the adjustable valve engaging element of the tool. Figure 4C is a side elevation thereof, the same being partly in section and yin engag- 65. ing relation to a slotted valve head. j

Figure 5 is a sectional view on the line 5-5 of Figure 1 looking `in the directionof the arrows. l y y Figure 6 is a fragmentary detail view of the hand grip for the links formingthe break joint between arm and lever of the ldevice. Similar reference characters indicatecorresponding parts throughout the several Referring to the drawing in detail, A designates generally va portion of an internal combustion engine block, B the valve mounted in the usual or customary manner within the block, C the valve spring of conventional type and D the removable spring seat, which is held ,upon the stem of thevalvev BbyA a removable cross pin engaged in said stem of the'valve B in the usual well known manner.4

rlhe tool constituting the' invention` `rom prises "a lever l() which is preferably elon gated and is formed with a handle terminal l1, the said lever being deformed intermediate .its ends to provide an acute angular end portion 12 remote frointhe handle terminal 1l thereof. VThis acute angular end portion 12 isy longitudinally slotted trans versely thereof fora vdistance to provideopn posed resilient jaw extensions 13 which dikis a bottom plan view ofthe vverge outwardly from each other and are A ble lne tinted in 'Fiennes 3.

vterminals 14 having inwardly directed jaws trated in Figure 1 of the drawing.

Carried by the acute angularly disposed end portion 12 of the lever is a substantially goose-neck shaped arm 17, which is swingingly connected to said lever through the medium of the pivot 18. This arm 17 at its free end iS formed with nn internally three-d.- ed eye 19in which is enga-ged an adjusting screw 20 having; at its outer end across head 21, while the inner end is turcated medially orremoy' vbly receiving a .reversible keeper 22, the same being helltast through .the mediurri of a couplingsorew 23 engagedin said screw 20 and keeper 22 asisclearly illusl and l of the drawing. To make clear the utility ot the reversible keepenrit will be ointed out that standard valve heads appear to be of two kinds, one heineL tortnedrwtll neroove in and. ttcnoeetlle ontenfnce of the valve liend'tor the @netscnient of a screw driyer therewith and the other yalyeheadisdevoid ont the groove but in lieu tlrereo'thas formed in theouterfacel apair of spaced holes so as to permit a doutoolto be engaged therewith.. To render the lifter universal for these types of valve heads, it; is constructed for use with reyersible keeper 22. Thisreyersible keeper .atone end is termed with spaced lugs 24radaptable for engagement in suitable holes termedin the valve head 25 of tlievalve B asillustratedin Figure 1 of the drawing,

.dll feo that both links which valve head is one conventional type. TheV keeper 2,2, at its 4other endK is -form'ed with a screw driver like V end26` which is adaptable forengagement in a slot 27 in the Valve head 2,8 'shown in Figure 4: of the dldllng this bend .being anothen conyen. tlonal: type-y j Connected with the leverv 10 and arrnl( is break joint b1'ace, including the links 29 and 3Q, respectiyely, these being swingingly connected by pivots 31 to the lever arm, respectively, asfshown in Figure 1 ot the drawing. The link 29 lect the Slottedv tyre and has -pivoted therein at 32 the said link 29 Aand 3Q .have knife likefopening .and closing action and when other 't-lne .Said llnlt the. linke are opened in alignment with each .the link 29. to enettnn the lnecen entendcd4 position toloclt tllelcyct 10 and cnn 17 1n llixedrelation tov each other, when the' tool is applied and engaging .Spinne reet D. tot sustaining 'the Serine- C compressed to permit the free and 'easy' re- .the spring operator 30 will` abut the back of the valve B- andy Vhead hand grip 33, which permits the user of the tool to readily break the brace, so that the lever 10 can be swung relative to the arm 17 of the tool as will be clearly obvious.

In the operation of the tool the brace is broken at the pivot 32 so that the claws or jaws 1 5 can be brought into engagement with the spring rest D and thereafter the arm 17. moved to overhang the valve B, whereupon the keeper 22 is engaged with the relic heed ot .sind ynlyeB and the handle terminal 11 is moved in a direction to canse C to compress and when in cornpressed position the brace isextended so that the links 29 and with each other` thereby holding the tool locked in applied position as illustrated in Figure 1 of the drawing.

To release the tool it is only necessary for the operator to engagethe grip 33 and break the brace outwardly, whereupon the tool can he manipulated for its removaly from engagement with the valve and thespring rest as will be apparent. The crosselrelation of the grip 33, with respect te the links 29 and 30, will prevent the lngers of an from. becoming pinched; when. Said linke .nce `bnolen, and ythe lever' 1Q closely approaches .the anni 17, .as this grip 33, preyente. these parte .ttolncotnns togothetl What is. claimed is:

l. lnv a tool of, the character described', an operating lever having a split shank` providing orpoetely arranged forwardly diver- `ont resilient extensions, there being offset claws formed at the extremities of said extensions, means for compressing the extensions and embracing the same;` a substantially goose-neck shaped. anni pvotally mounted .on the leycc intermediate, its ends, an adjusting screw carried by the arm, a reversible keeper fitted in the screw and adapted to engage valve head, and means .for locking the nlln and leycr in fixed reletien to each other. v n

ln n tool of tltc character described., nn operating leverhaving a split shank providing oppositely arranged forwardly diver- Mresilient entendons, there being offset c laws'formed at the extremities of said ex-r.

keeper iitted i the screw. and adapted to engage a valve head, and a break joint brace pi'vot'ally connected to the lever and arm.

' .3. In a tool of character described, an operating lever having a split shank provid- 30 nre in 'alignment ing oppositely arranged forwardly diver` n keeper tted in the screw and adapted t0 gent resilient extensions, there being offset engage a valve head, abreak joint brace 10, Claws formed at the extremities of said eX- pivotally connected to the lever and arm, tensions, means for compressing the eXtenand a grip formed on one of the parts of sions and embracing the same, a substantialsaid brace.

ly goose-neck shaped arm pivotally mounted In testimony whereof, I affix my signature on the lever intermediate its ends, an adjusthereto.

ing screw carried by the arm, a reversible PERRY OTIS WISWELL.

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