US1690732A - Heavy-duty valve-spring lifter or compressor - Google Patents

Description

Nov. 6, 1928.

H. W. KULP ET AL HEAVY DUTY VALVE SPRING LIFTER OR COMRESSOR Filed July 22, 1927 3 Sheets-Sheet 1 Npv. 6, 1928.

H. W. KULP ET AL HEAVY DUTY VALVE SPRING LIFTER OR COMPRESSOR Filed July 22, 1927 5 Sheets-Sheet 2 Nov. 6, `1.928.

' 1,690,732 H. w. KULP er AL HEAVY DUTY VALVE SPRING LIFTER OR `('-JOIPRESSOR 3 Sheets-Sheet 3 mea July 22, .1921

@Awa 5M Patented Nev. l 6, 1928.A

UNITED i STATES meuf/'32 PATENT OFFICEly;

HARRY W. KULP .AND MARTIN C. DELLINGEB, OF LANCASTER, PENNSYLVANIA.

HEAVY-DUTY VALVE-SPRING Lirfrnn, on COMPRESSOR.

Application filed July 22,

This invention relates to valve spring lifters or compre'gsors for use in compressing or lifting the lower ends of the valve springs as arranged about the valve-stems of poppet valve type internal combustion engines to permit the retaining pin or liey to be easily removed or reinserted in rei'novingl or replacing the valves and their stems incident to the grinding of the valves or their removal or replacement or adjustment for any reason, and is primarily intended for use with verystrong springs ofthis nature used on large engines such as employed in large motor trucks, busses, tractors and the like.

The primary objects of this invention are to provide a very rugged tool with great leverage so as to be very easily operated,-not withstanding the great strength of the spring, to compress the latter; to provide C-shape tool so reinforced as to overcome the tendency to spread or elongate under pressure of the spring; to provide a convenient handle forA positioning the tool in close association With an operating handle to facilitate in general the manipulation of the tool; to provideV in i a tool an offset lever construction to l 'd engine parts; to so locate said positioning handle and' operating handle lever as te facilitate the use of the tool by increasing the range of vision about both the foot and the j aw whereby said tool may be easily and quickly operated by a. single operator or mechanic, wit-hout aid, to lift or compress such valve springs, in operativeposition about the valve stems of such large engines; to provide a convenient lever lock; to provide in such a tool an 'adjustable bearing and supporting member or foot for bearingagainst the top of the valve as the frameV with its adjustable liaw moves in accordance. with the levers; to combine in such a tool means for compressing a free valve spring as a. preliminary to its insertion into operative position about avalve stem, and to provide special details in the latter means, all of which objects, among others, are accomplished by the construction, combination and arrangement of parts all as hereinafter more particularly set forth, described and claimed.

In this application I show and describe only the present preferred embodiment of my invention, simply by way of illustration of the practice of my invention as by law required. However, I recognize that my invention is capable of other and different embodiments, and that the various details therea valve spring and'valve of an engine, all indicated in dotted line, the device being operatively positioned and open;

Figure 2, a similar view of the device,closed to lift or compress the spring;

Figure 3, a front elevation of the device;

Figure 1l, a top plan view of the body, brolren away, to show the reinforcing-or bracino' plates extending about the long curve of Figure 5, a fragmentary sectional View on the line 5 5 of Figure l looking in the direction of the arrows to show the construction and combination of the thrust links, parallel movement links, frame and operating lever;

Figure 6, fragmentary section on line 6 6 of Figure l;

, Figure 7, a fragmentary section on line 7-7 of Figure 8;

Figure 8, a detail fragmentary side elevation of the levers, frame and supplement-ary free spring or compressor, showing a spring ready to be compressed;

Figure 9, a view similarr to Figure 8, only showing the spring compressed with the relative positions of the parts; Y

Figure l0, an enlarged, detail fragmentary view on the line 10--10 of Figure 1l; and

Figure l1, an enlarged det-ail top plan, partly broken away and sections of the post 34 with` the keeper 37 thereon, the locking means of the latter being shown in operative position in elevation in solidlines andindicatedby dotted lines vin inoperative position.

y In operating on the springs of the larger engines such as employed in large trucks, busses, etc., it has been usual, because of the great power of such springs and conditions bearingon accessibility to the springs, to employ a foot adapted to engage the upper face of the valve and a small arm carrying a jaw sulfistantially in line with said foot, some leverage means for moving the aw toward the foot tu thereby compress the spring, and some means for locking the leverage means in such position. Such a general construction peric could operate the tool.

mits the employment of an arrangement of levers such as will give great leverage power.

However, Ithe engines on which such valve spring lifters are to ,be used are quite large and the lifters themselves are quite large, so thathas been diiiicult with Vthe heretofore known lifters for one mechanic to raise' vor compress la valve spring of such an engine with such a lifter because it was so diliicult to get thejaw and foot in operativepositions, since only one of them was within 'his range of vision from the position he had` to assume in operating the tool, andas a consequence two mechanics have heretofore been necessary to perform thejob or when*attemptedfby one mechanic much of his timehas been lost? in positioningone and then the other" with repeated Vshifts of his vown position, until finally both the `foot and jaw could be moved and main tained in operative position until the The present embodimentflias in view te vprovide such a heavyduty valve sgrinm lifter in which the positioning` handle and epeiat ing lever are both so located as to 'extend to one side of the 'engine so that the mechanic fmay stand on theground and easily and quickly operate the .tool while having` full vision, withoutchanging his position, of both the foot and the Jaw in operative position, so

` that one ymechanic may easily and quickly operate `the lifter 'to raise or compress a valve spring without need of' any assistance whatsoever. A

However, while this feature is of value and important, considering ourA invention from one broadaspect, it is not of importance to other features of our invention which may beV employed with an embodiment lacking this feature. j f

Referring now in detail to the drawings, the frame or body, preferably of approximate spread C form, is preferably formed of two Vflat bent narrow plates or straps 1 of stcelor forged steel reinforced. aboutthe lowercurve by two curved bracing plates or straps of steel or forged steel 2`located between' said strapsl and secured thereto by rivetsfl and 4, spacing blocks, washers, or iillers 5 being interposed betweenk said bracing plates about vthe'respective rivets 3 and 1l.

-. To'the upperportion of this frame and eX- tending on the outerjsideof the C a handle 6, having a bifurcated shank 7 having its eX- trem-e ends positioned bet-wen the plates 1 and extending lengthwisethereof for an appreciable distance, is secured by the rivet 8 and 8a at vtwo points ofthe length of said 'plates 1 so as to be immovable with relation to said frame. f i y.

Jaw-members 9 are secured to the lower ends 19 'of the respective plates'l by means of screws 11, or equivalents, two screws 11 being` used, for each jaw member r9 to hold it rigidly 4in position.

Such construction permits the mechan-` removal and replaceinentofvsaid jaw inembers 9 whereby different sizes'aiid forms of jaw members 9 may be used according as the circumstances mayfrequire, or the removal and replacement of a damaged jaw member 9.

T he lower portions 10 of the plates 1 are resilient and free to lier; from `the rivet e to their extreme lowerfends, anc a screw 12 extending through one portion 10 and having screwthread engagement with the other portion 10 serves as a means for adjusting said portions 1G and their jaw members8 toward and away from each other, as maybe necessary according to the size of the valve stein and any asso- 'ciated parts-` n l Two parallel movement links 18 and 14 are pivoted on the rivets 8 and 8a, respectively, at their outer end portions which extend between the bifurcations of the shank ITof-the posi-y tioning pistol' grip handle Gand have their inner end'portions pivotally, by pivot pins 15 and 15a, connected respectively, to a long, flat sleeve 16, which has a transverse perforation and receives the shank 17 of the foot 18, said shank 17 being provided with a number of transverse perforationsl) adapted to be selectively brought into registry with the transverse perforation in rthesleeve- 16 to permit adiv'ustinent of the effective or operative'lengt-h of the sha-nk 17 as maybe necessary forswork on any particular engine, a Cotter pin or (equivalent 2O beingI inserted in the registering perforations in said sleeve 1 and shank 17 to prevent relative endwise movement between them after adpistment p Thedistance between therivets 8 and 8**v is 4lapproiiiinately the same as the distance bev'at-a point well above and inr advance of the rivet 8a is pivotallyconnected by pivot pin Q3 tothe thrust linkage means 24C pivotally connected by a pivot pin 25 to one ofthe parallel movement. linkssaid pivot pin 28 being located closely adjacentto, and to `the rear of, the pivotpin 22 -pivotallyconnecting` said lever21 to the frameto give a powerful leverageiand thepivot pin 25 will Vpreferably be located almost directly below the pivot pin 22 to give a shora, straight thrust.

In the embodiment illustrated the linkage meanslstraddles the link 14 ari-dis pivotally connected'to thelink 13 being thus of a bifurizo cated type and it may consist, as illustrated,

of two members, one .arranged on each side of the links 14 and 13, having their lower ends connectedby the pivotpin 25 passing through Cil Cil

the intervening portion of link 13, and having their upper end portions offset so as to lie flat against each other between the sides of the channeled, preferably sheetinetal, lever 2l and held therein by the pivot pin 23 passing through the sides of said lever 2l and the intervening upper end portions of said meni- A little lock plate or catch 26 pivotally mounted on the shank 7 close to the plates l by a pivot pin 27 and slotted. in registry with the bifurcation of shank 7 cooperates with a tongue 28 pivotally connected by pivot pin 29 to the lever 2l between the sides thereof, extending through the slot in said plate 26 and the bifurcation of shank 7 and having its outer edge notched at spaced intervals, as kat 30, to lock the lever 21, and hence the links 13 and llt in any one of a number lof operative positions, the rear wall of the slot in the plate or catch 26 being adapted to fit in said notches 30 to hold said tongue 28 against reverse movement.

To hold said lock plate or catch 26 in operative position about its pivot 27 and with its rear end spaced from the shank 7 and handle 6, a little leaf spring 31 is employed, and this spring' 3l may bein the form, as shown in the embodiment illustrated, of an integral bifurcated wire spring straddling the shank 7, having its legs wound one or more times about the pin 27 and then bent back and in contact vwith the lower face of said plate 26.

In operation, as the-lever 2l is swung on its pivot 22 toward handle 6, the upper walls of the notches 30 will engage with the rear wall of the slot in the plate 26, which will thereby be depressed against the action of the spring 3l, thus permitting the tongue 23 to slide on` through the plate 2G and shank 7, but on the reverse movement of the tongue 28 the rear wall of the slot in the plate 26 willbe in engagenient with the lower face of one of the notches 30, `so that the compressed valvespring will act to cause a tighter grip of the i' late 26 on the tongue 28.

rlhe plate 26 mayhave a rearward extension 25a to be depressed by the mechanics thiinib to release the stein 28 to allow the parts to move back to original or open position.

From the foregoing it is obvious that with the j aw, comprised of jaw members 9, applied about a valve stein beneath its valve spring retaining washer or cup and with the foot 18 resting on the top ot the valve, movement of the operating or handle lever 2l toward the i" pistol grip positioning handle o will cause a straight movement of the frame as a whol including the jaw, toward the foot 18, the straight line intersecting the axes of rivets 8 and S be maintained at all times parallel, or sr" tantially parallel, to the straight line intersecting lthe axes of pivots l5 and l5, and reverse movement of theV lever 2l, the locking bers to pivotally connect them to said lever nieansbeing released, will cause movement ofthe frame in the reverse dirction away from the foot.

In order that the device may function also as a means for compressingy free valve-pr springs so that they may be easily inserted and arranged in operativeposition, in accordance with usual present practice, byaiiy suitable spring` holding and ypositioningclip, not

shown, the extremeupper forward or inner end portions 32 ofthe' plates l lie close togcther, one of them being inwardly offset, beyond the pivot pin 22, for that purpose,` as at 33. i

A post 34 pivotally connected to link 14; extends upward between the opposed faces of said end portionsf32, has one edge formed with a number of spaced notches 3G, and is of' such thickness as to make a loosesliding fit between, and to be guided by, said opposed the registering perforations a distance approximately the same as, or slightly in excess of, the width of the post 34, and, if desired, a cotter pin may also be arranged in these registering perforations to prevent any substantial swinging movement of the post 34- toward `the pivot 22 of lever 2l; however, this is a matter mainly of personal preference, its use in some situations may be an advantage, but in most instances it may be omitted with no yappreciable loss of etiiciency, and the present embodiment as illustrated, while making provision for its use, if de ired, omits it.

A little' removal compressor head 37 of channel sheet metal centrally slotted to allow the passage therethrough of the post 3l and provided with oppositelypresented iianges is adapted to be slidablyY applied over the free end ot the post 34 and a U-shape lock or keeper 38 having. a short 33 and a long leg 38h with. an enlarged upset or mashed out end 38C, and having` the opposed yi'aces ot its legs spaced from each other at a distance tly less than the width of said post 3ft is slidalily mounted in transverse pettorations in keeper 38 in such location that, in locking petition and whenV the keeper' is arranged on the post 34;, the short legl 33FL will i lie in one of the notches 30 of said post and release, to permit such movement of the keel' er Cit lll() lill) f `38it is simply necessary'torshove on the end SSCvot' the long leg 381 to move the locking means transversely to the position indicated in dotted lines in Figure 1l', whenthe slioi't leg 38"' will be moved to inoperative position out of the path of said post To compress a free valve spring the keeper 37 will be entirely removed, the valvespring' will b e slipped over the end of the post 3,4 with its lower ,end resting against the upper edges of the upper inner endportions 32 .of the' plates l. The keepei'37,with Vthe lock 38m the dotted line positionv shown in Figure ll, will then be slipped overthe end of post il with its flanges 3T presented toward the upper end ofthe spring` andinay be forcedv d'own by hand against thespriii'g` to rslightly coinpress it, the locking means 38 then being moved to locking position 'as shown in solid lines in Figure ll, the p( rts then all being in the Apositions shown in Figure 8, when the ylever 21 will be Dressed toward the handle 6 to the position shown in Figure 9, resulting in pulling tliepost endwise between the upper inner end portions'BZ of plates l andso compressing' the spring betweenl the keeper 37 .and said end portions, all as shown iii Figure 9. l c

Thus it will be seen that the frame, parallel movement links and operating lever combine both with the rfoot and jaw and with the post 34C to perform two functions either simultaneously orseparately, or alternately, so th at the onev tool maybe used for the two purposes. Y Throughout all parts have been designed for manufacture from sheet metal or from heavier narrovi7 strap .or thin bar metal, this c beingvpreferred as makingifor economical manufacture on ka .large production basis.

However, While preferred,'it is not essential, and any suitable materials may be used for any parts andthe manufacture may be in anyr practical mannen Claims l. A valve-spring liftingand compressing tool comprising a. frame, a Ypositioning handle rigidly secured thereto intermediatethe ends thereof and extending outwardly therefrom to the sidethereof, .a pair of removable interchangeable jaw members rigidly secured to said frame iii opposed and registering relation to each other to together constitute a jaw to engage under a valve-spring retaining cup,` means for relatively adjusting said members transversely, a sleeve, parallel movement links pivotally connected to said frame and pivotally connected to said sleeve, a shank adjustable slidably in said sleeve, means for locking said shank and sleeve togetherin any' one of a number of positions of lengtl'iwise adjustments of the former in the latter, a foot i secured to said shank against axial movement thereof and adapted to rest on a valvehead when said ,j aw is arranged'about the stem of said valve under the valve-spring retainingy cup thereon, a postpivotal-ly connect-ed to one of said parallel movement links and eX- tending Athrough and guided by said frame, a head slidable on said post, and means for locking said head to said post in any one of several positions of adjustment lengthwise thereof for the purpose of compressing an otherwise free valve-spring between the opposed faces of said head and the adjacent portion of said frame, in combination with a long c channel sheet metaloperati lever pivotally connected to saidV frame above,y and inward of,pthe points of pivotal connection thereto of `said parallel movement links, a pair of short thrust linksfsp'anning one of said parallel movement links and having their lower ends connected together and pivotally to the othei'of said links7 a pivot pin extending through the lower portions of said thrust links and the intervening portion of the latter parallel movement link at a point between the side and upper inner end of said frame,

the upper ends of said thrust links being in engagement and lying between the sides of said operating lever, a pivot pin extending through said sides of said leverand the intei vening upper end portions of said thrust 'links at appoint to the rear of, and closely adjacent to, the point of pivotal connection of said lever to saidv frame, wherebya movement of rsaid operating lever toward said handle results in a'powerful thrust on one of said parallel movement links Awith a resultant movement of the frame as a whole and in a straight line toward said foot, a tongue pivotj ally connected to said lever tothe rear of the pivotal point of connection of the thrust links thereto and extending through said handle,

said tongue having its outer edge face formed with a plurality of spaced notches, afslotted plate having the rear wall of said slot sopositioned as `to engage in said notches, a pivot pin pivotally connecting said plate to said e liandleadjacent ysaid frame, and resilient means 'bearing against said handle and the opposed face of said plate to normally hold the latter in locking position to lock the operating lever in any one Vof several positions while permitting the downward yielding of links'pivotally connected to said frameand pivotally connected `to said sleeve, a shank `adjustable slidably in said sleeve, means for locking said shank and sleeve `rtogether. in

Aany one of a number of positions of lengthw wise adjustments of the former in the latter, a foot secured to said shank against axial movement thereof and adapted to ,rest on a valve head when said jaw is arranged about the stem of said valve under the valve-spring Y lengthwise thereof for the purpose of come pressing and otherwise free valve-springben tween the opposed faces of said head and the adjacent portion ofsaid frame, in combination with a long channel sheet metal operating lever pivotally connected to said frame above, and inward of, the points of pivotal connection theretol of said parallel movement links, a pairof short thrust links spanning one of said parallel movement links and having their lower ends Connected t0- gether and pivotally to the other of said links, aY pivot pin extending through the lower portions of said thrust links and the intervening` portion of the latter parallel movement link at a point between the side and upper inner end of said frame, theV upper ends of said thrust links being in engage ment and lying betweenthe sides of said operating lever, a `pivot pin extending through said sides of said lever and the 'in`- tervening upper end portions ofsaid thrust links at a point to the rear of, and'closely adjacent to, the point of pivotal connection of said lever to; said frame, whereby a movement of saidV operating lever toward vsaid handle results in a powerful thrust on one of said parallel movement links with a resultant movement of the frame as ai wholeand in a straight line toward said foot, a tongue pivotally connected to said'lever to the rear ofthe pivotal point of connection of the thrust links thereto'and extending through said handle, saidtongue having itsv outer edge face formed with a plurality of spaced notches, a slotted plate having the rearwally of several positions while'Y permitting'thei downward yielding of said plate toward saidk handle as the tongue is moved downward through said handle.

3. A valve-spring lifting and compressing j tool comprising a frame, al positioning handle rigidly secured thereto considerably below the upper end thereof and extending outwardly therefrom to the sidethereof, a jaw carried by said frame toyengage -under a valve-spring retaining cup, a sleeve, parallel movementlinks pivotally connected to said frame and pivotally connected to said sleeve, A

a shankadjustable slidably in said sleeve,

and a foot secured to said shank against axial movement thereof and adapted to rest on ,a valve head when said aw is arranged about the stem of said valve under the valve-spring retaining cup thereon, in combination with `a long channel sheet metal operating lever pivotally connected to said frame above, and inward of, the points of pivotal connection thereto of said parallel movement links, a

pair ofshort thrust links spanning one ofr said parallel movement links and having their lower ends connected together and pivotally to the other of'said links, a pivot pin extending through the lower Aportions of said thrust links and the intervening portion of the latter parallel movement link at a point between the side and upper inner end of said frame, the upper ends of said thrust links being in engagement and lying between the sides of said Aoperating lever, a pivot pin extending through said sides of said lever and the jinterveningv upper end portions of said thrust links at a point to the rear of, and closely adjacent to, the point of pivotal connection of said lever to said frame, 'whereby a movement of said operating lever toward said handle results in a powerful thrust on one of said parallel movement links with a resultant movement of the frame as a whole and in a straight line toward said foot, a

tongue pivotallyconnected to said lever to the rear of the pivotal point of connection of the thrust links`v thereto and extending through said handle, said tongue having its outer edge face formed with a plurality ofy spaced notchesfa slotted plate khaving the rearwallof said slot so positioned as to engage'in said'notches, a pivot' pin pivotally connecting said plate to said'handle adjacent said frame, and resilient means bearing against said'handle and the opposed face of said plate to normally hold the latter in locking position'to lock the operating lever in any one o-f severalpositions while permitting the downward yielding of Asaid plate toward said handle as the tongue is moved downward through said handle.

4. Al valve-'sprinff ifting and compressing tool comprising a frame, a positioning handle rigidly secured thereto intermediate' the ends thereof and extendingoutwardly therefrom to the side thereof, a` jaw carried by said frame' to engage under a valve-spring retainingcup,"`a sleeve, parallel movement links pivotally connected to saidframe and pivotally connected to` said sleeve, a shank adjustable slidably in said sleeve, and a foot secured to said shank against axial movement thereof and adapted to rest on a valve head when said jaw is arranged about the stem of cup thereon, in lcombination with a long op erating lever pivotally connected to said freine algemend inward oi Ithe 1.30m@ Of#- pilvoltelly,co'n'iieating vone enc yof saidy thine-tv Jef said thi'iistlnk to seid levciv at i pointftdtlie 4,rear of, V'and Aclosely adj celf lejfei .to-'seid ffanie, whereby 'a' inoifenieiit of said o ,Textiiig lever -towaid rsaid handle ife-l allevv linyeinent links Witli'gi esultsnt iiioife- ,ment oid tlie ifi-einleiten 'Whole' indin ii/stre t klluCl'siid foot, zi tOiigiiewpiYQt-(illy iieetecltofsgaidlevei to ,tlieg'i'eziiolf the pito point of onnectieii of 'the 'thrust links .they to Eind eXtendiiig'th'ienfgli lsind handle.. sei tongue ',hziy'i1ig`its 'Oiitei edge-tace flo'f'iied Witlli pluifa'lity fofspecedfnotelies, L slot-ted teliviiig'tli'e fezii Wall oic l nedgis to'engzige iii seid noliesfzi pivot pA .pilotallyeiineleting siid'pplite to Seid .liliidle ,adjzieent said freine, fend esilient ing iigninstfsziidliendle and the 4,ol said pleite' 'noiiniallyjliold n j iokiiig' pesitioii to lock' tie op! e; regi-@vel "www @fe/wal if A .'xifhile pe, Initting tliez'idewnvaid yielding fof selidY pleteltoimrdsaid/l ii'idle es tlie lcongo-e islinoyed gloi'n'xifaid throng t Lid Handle.'

5.,y valise-.spring liftn etofgl coinpi'ising a trahie, [a positioning handle when sid .Jew is arranged'about the 'stein jVgilvey iinde the Valve'-spiingV retain-k i" gp thereon', in eoinbiiiition'witli an oper.-y

t al: i i N iiioilenient4 li11ks,' a 'pivot pin pivotelly Colnneetiii'g'tlie lother endlof said tliiust vlink to S.

of Seid' leeito said freine', 1nd cooperating iiieanfs eeriied byseidleveij and handle foi1 i siilts in ,a, powerful tliiustkoii one of sind perf f` slot yso pog and compressing e', lime/pin tivo-falli @enacting @e 'thrust link to one O'@id llmud ieee-ee? L ,trarne to eiigageiindeiisi lyelv'e-spi'iiig retain; ing` oup,-paillel inveinent'links pivotally connected fat one end to sidlfzinie, ineens to wliicli tlief otliei1 endsM of parallel Inovement linksdziife piw'v'otilly eonneeted, ifi foot feaiiized said Ineens "innio'vable With l V"onitlieeto,iiidwdgipted, ,toflest Jon a ville heady/lien saidjw is aiizm'gjed eboiit j ilvevspriiig retaining Tthereon;'in combination with an epeijatingleiiei pivotlly'eonneeted to *saidvr traine, illpe the point olf pifv: l connection tlieietdOil-said pzlii'allel niey4 Anient links; ie. slieift liiikf pin, piv'otlly ceni'iectingoiie end l'of id shoiit link to one of said pa'illel niveinent links; a pvijvotzilly A conneeting tlietliei eiidwof said lslioitlink to seid leijei7` and n'i'eens tei' leeliiiig 7sind 'lever iii opeizia tiielposition. p i e u e lVe-jspring liftingv tool comprising l 1 a fijainelfzi lizindle rigidlySeeured/tlieieto f teiinediate tlie ends tlieije'of" `sind 'extending oitiiiaidly .therefrom 3to the Vside Ltlierejffzi jaiv oziiriedby saidjfrainet engage Vnndei a ialifle-gspiiing retaining eiip,` parallel nioveinentlinks pi'xotelly lconnectedi t one end te Said feine, rigid part 'to ,which @meer ends oi said paiillel inoyeinentlinks are pivf e @telly nilleftd; amid "fat baffled by Sad pait andfopeifatiiel'y iiniiiov'zilole with rele'- tioii thereto and adapted'to `reet ,one vaelfve heedlllihenf ,Sad iet? 'ilsareneed .abut the. Sie@ "f Seid' "Valve veel@ 'the veli/@Spring ein oiiereting leiter piyetellif @Qietefl testi@ fr, 1,11@ e, .OL-ve the peints ef Pivefel; Cnncten, thereto yof said parallel inoyeineiit links,y 5

e allel movement liiiks'andlgsaid leifeiy f y v Y lVELliIeJ-spiling@lifting tool `eoinpiising t,eiinediate thee ds thereof. and extending .tfermediafihe @ind iheiflnd @neming .We-Spring fminine Cup; le fetrdepied' Y ning cup thereom'nd movable means connectingT said frame and foot, in combination with an operating lever pivotally connected to said frame, anda short thrust link, having its ends respectively piv- @tally connected to said means and said lever.

l0. A valve-spring lifting tool comprising;r a frame, a handle rigidly secured thereto intermediate the ends thereof and entending, outwardly therefrom to the side thereof, a jaw carried by said frame to engage under a valfee-spring),` retaining cup, a foot adapted to rest on a valve head when said jaw is arranged abcut the stem of said valve under the valve-sprino' retaining,` cup thereon, and mevable means connecting said frame and foot, in combination with an operating lever pivotally connected to said frame, a shert thrust linlr, having,r its ends respectively pivotally connected to said means and said lever, and a post connected to said means and movable through said frame with said means for compressing an otherwise free valvespring.

ll. A valve-spring` lifting tool comprising a frame, a handle rigidly secured thereto intermediate the ends thereof and extendingl outwardly therefrom to the side thereof, a jaw carried by said frame to engage under a valve-spring retaining,l cup, a foot adapted to rest on a valve head when said jaw is arranged about the stem of said valve under the valve-spring retaining` cup thereon, and movable means connecting said frame and foot, in combination with an operating lever pivotally connected to said frame, a short thrust link, having its ends respectively pivotally connected tosaid means and said lever, and an element connected to said means, cooperating with said frameandmoving With said means and adapted to compress an otherwise free valve-spring.

l2. A valve-spring lifting tool` comprising a frame, a handle secured thereto, a jaw carried by said frame to engage under a. valve spring; retaining cup, a foot adapted to rest on a valve head when said jaw is arranged about the stem of said valve under the rvalvespring,l Aretainingl cup thereon, and movable ymeans connecting said frame and foot, in combination with an operating lever pivot-` ally connected to said frame, a short thrust link, having its ends respectively pivotally connected to said means and said lever, and an element connected to said means, movable through said frame and cooperating therewith, and moving with said means and adapted to compress an etherwise free valve-spring.

ln testimony whereof, we have signed ournames to this specification at Lancaster,

Pennsylvania, this th day of uly, 1927.

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