US1657210A

US1657210A - Valve lifter

Info

Publication number: US1657210A
Application number: US198950A
Authority: US
Inventors: Benjamin J Geisser
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-06-15
Filing date: 1927-06-15
Publication date: 1928-01-24
Anticipated expiration: 1945-01-24

Description

B. J. GEISSER VALVE LIFTER Filed June l5, 192'? Jan. 24, 1928.

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llluJnvnaaf:alivlynnlllllo Patented Jan. 24, 1928.

il Nfl T `El) ST ATlES BENJAMIN J. '.GEISSER, :OF OAKLAND, i'CALIFOBNIA.

VALVE LIFTER.

application med :une 15, 1927. serial No. 198,950.

This invention `relates to internal combustion motors and particularly pertains to a valve lifting Vdevice for compressing the valve springs so that they Vmay be disconnected from .thevalve stems and the valves removed.

It is the principal object ofthe present invention to generally improve and simplify devices of the .character referred `to whereby to provide a. valve lifter capable of opera` tion .in connection with L-head .motors and designed so that it will be capable off .operation in compressing valve springs when the .latter .are positioned .soy that `it is .difficult to gain access thereto.

In carrying `.ont this invention Ainto practice, I provide a bail-shaped trame .of sutil'- cient dimensions Kto embrace the usual projecti-ng `manifolds ofv an engine .and place its .ends in operative position relative tothe opposite ends of the valve` To these ends ol' the frame devices .are pivoted .toengage .the valve/'and valve spring,y which devices are yoperative so that they may be moved 1relatively .closer together to `compress the spring and maintain it compressed. vThe .compressing devices ofthe trame are pivoted .to the iframe as `defined `so that the latter may bepositioned to 1avoid the engine acces-A sories when the latter render it dillicnlt Vto gain access .to the valves.

`One form which the invention may assume is `exemplified in `the `:following description and .illustrated by way of example Lin .the accompanying drawings, in which:

Fig. l is a side elevation of a `valve lifter embodying the preferred form Votmy invention Vand `.disclosing it as .operatively con? `nected toy a valve .and spring.

Fig. 2 isa similar view .showing fthe valve lifter .after it has been .operated .to compress the valve spring. y

Fig. 3 is a. perspective view 4.of my valve litter showing certain details -,of construction.

Referring more particularly itothe accompanying drawings, 10 indicates .a valve litter or valve spring compressor capable of aise in connection with vautomobile engines to.

compress the valve spring so lthat the lreeper in the valve stem may be removed to permit' the extraction ofthe valve from the Cylinder block.

in the drawings wherein the .preferred form `of `my device is disclosed 11 indicates `the iframe 1l. guidesleeveand ofthecup receiving member a bail-shaped rigid i'rame4 formed olf any suitable material having a vertical portion l2 and horizontal legs lll and 14a. IWhen `in use the frame 1l is arranged vertically So that the legs 11i and 14a will extend v:horizontajlily. 'The distance' between these legs is V.suiiicien't to permit them to straddle .the projecting portion O a cylinder block as illustrated in Figs. l and 2. In this position the lower leg lea will be disposed in a position so that a V"bifurcated cup receiving member l'may engage .the underside of the valve spring cup while the upper leg 14V will be disposed a distance above the head o'f the 4valve as illustrated.

4Reference being had to the drawings it will be noticed that thebifurcated cup ree c eiving ,member lis `formed jin two parts havingcircular 'bosses 15a disposed between the Alegs of a clevis 11,51 carried 'by the extremity of the lower leg '12in oit the frame 1-1.

It will V.be .noted that the "bosses 15a of .the portions ot the cup receiving ,mem-ber are oiise't so that the cooperative portions will be .disposed in the sameplane. The bosses 15a ofthe cup receivingmemhermay pivot about apivot .pin 1.5 extending between the legs of 'the cle-vis L15". A wing nut 15d is arranged on the l.pvot pin .1'5c to clamp the cup .receiving member .15 relative to the "leg 14a ,ofthe .frame .11. Theengaging faces ,of

the ,bossesof the two portions oi the cup receiving .member are. :preferably ylrnurled to maintain them relatively xed when thenut 15d is tightened.

VThe object of ,making .the cup receiving member 15 .in ,two parts is so .that it ,can be adjusted so .thatit will accommodate diller- .entsizes of valve spring nuts. uLikewise it is pivoted `.to the :trame :so that it may be arranged at any .desiredangle relative thereto to facilitate its engagement with the valve spring cup.

'The upper leg is pivotally connectedas `at `16 `toa gui'desleeve 17. The pivotal connec ti'onbetween the guide sleeve 17and the leg 1,4 includes a yhormentally.extending arm 18 on the y,guidesleeve 1.7 which ispivotedto a clevislQ at Athe extremity of the leg .le .or the frame 11. The cle-vis 19 is disposed horizontally so ithat `theguide sleeve 17 .may pivot'in Aa horizontal plane with` respect .to The pivotal ,points of the .l5`are disposed in alignment.

Reciprocably mounted in the guide sleeve 17 is a valve engaging pin 20. The lower end of this pin 20 is conical so that it will center in the center hole of the valve head. Between its ends the valve engaging` pin 2O is formed with a plurality ot transverse drilled openings 2l which align with 4a longitudinal slot 22 in the sides of the guide sleeve 17.

@ne end of a pair ol links 23 is connected with the valve engaging pin 2() by means of a Cotter key 24 extending through the ends of the links and through one ot the drilled openings 2l. The provision of the slots 22 permits the links 23 to be engaged with the valve engaging pin 2O without interfering with the latters vertical reciprocation. The other end of the links 23 pivotally connect to a fulcrum lever 25 at a point intermediate its ends. One end of this l'ulcrum lever is pivoted to the upper end of the guide sleeve 17 at one side thereof as illustrated. y

It will be noticed that the pivoted end ot the lever 25 is bifurcated so as to align with the links and to engage opposite sides ofthe lug on the guide sleeve 17 `to which it is piv otally connected. This biturcated end ofthe lever is curved so that in one position the lever will align with theupper leg 14 of the trame ll. llVhen in this latter position the pivotal point of connection between the links and the lever will be beyond center or beyond aline drawn between the pivotal point of the lever and the point of connection between thelinks and the `valve engaging pin 20 so that upward pressure on the valve engaging pin 20 will not tend to raise the lever.

In operation ofthe device, itis constructed and "assembled substantially as shownin the drawings and in compressing a valve spring the frame ll is arranged in a vertical posi tion with the lower leg 14 inserted beneath the valve spring cup andthe upper leg arranged over the valve. In .some instances there is not sufficient clearance to permit the frame l1 to extend out transversely of the cylinder block and for this reason the `guide sleeve 17 and the cup receiving member l5 may be arranged at an angle to the frame to 'enable them'to be aligned with the valve.

When properly positioned the nuts d are tightened.

In order to aceon'nnodate the different di ameters of spring cupsj the portions of the cup receiving member l5 may be spread apart orfcontracted to properly engage the cups. It is seen thatthese side portions are triangular in section so `that they wille1`n-` brace the `cup and at the Sametime abut against the bottom of the cup.

When properly positioned the lever 25 is drawn downwardly, lessening the distance between the end of they valve engaging pin an'd the cup receiving member l5. `is the end of the pin 2() engages the yhead of place.

release the valve sprinof.

nected from the valve stein.

between the links and the lever will he disposed beyond center, locking the pin 20 in 'lhe keeper in the valve stem may then be removed and the lever raised to The device may then be removed and the valve ground.

In order to accommodate diiierent lengths olvalves the point of connection between the links and the pin 20 may be ehangedto suit the different length of valves, that is, the cotter key may be 4withdrawn and the links connected to the pin by connecting the links to any one of the various openings along the pin 20. i

After the valve has been ground and itis desired to compress ythe spring in order to reposition the keeper in the valve stem, the cup receiving member l5 may be engaged between any of the convolutions of the valve spring at the lower end thereof, whilethe engaging pin 20 is abutted against the head of the valve as previously described. The lever is then pressed downwardly to compress the valve spring.

I prefer that the cup receiving member l5 he magnetized so that it will attract the cup l5. Yllhis is preferred for the reason that in compressing the valve spring to re-position the keeper and connectthe sirng to the valve,` the eupreeeiving mein er l5 is en gaged `with the lower convolutions of the valve spring and not with the cup because it is very diiiicult to :torce the member l5 beneath the cup whenthe latter is discon- Therefore, after the valve spring is compressed the cup is arranged on the valve stem and moved upwardly thereon to the bottom of the spring. By havino' the member l5 magnetized it willhold the cup in position so that the operator will be free to position the keeper withouthavingto hold the cup in place with one hand.

From thel'oregoing it is obvious that I have provided a comparatively simple and inexpensive valve lifter capable of adjust nient in several different manners so as to make its use universal withrespeet to Lhead motors regardless of their dimensions or the positioning'o'l accessories thereon.

It is also apparent that by the use oi" my `device that the operation of compressing the valve spa-ings to disconnect them from the valve will be greatly expedited.

While I have shown the preferred form ot my invention, it is to be understood that various changes may be made in its construction by those skilled in the art without departing from the spirit ot the invention, as defined in the appended claims.

Having thus described my invention, what l lli) l claim and desire to secure by Letters Patent is:

l. A device of the character described comprising a bail-shaped frame to embrace the projecting portion of a cylindei` block, bii'nrcated spi-ing engaging means formed in two relatively adjustable sections pivotally mounted at and extending from one end of the iframe, a guide member pivotally supported at the other end of the frame in alignment with tbe spring engaging means,

n reciprocable Valve engaging member slidably disposed 'in said guide for reciprocation toward and away Jrom the spring engaging :means7 and means for reciprocating said engaging member toward and away from the spring engaging means.

2. A device of the character described comprising a bail-shaped frame to embrace the projecting portion of a cylinder block, bifurcated spring engaging means formed in two relatively adjustable sections pivotally mounted at and extending from one end of tlie frame7 a gnide member pivotally supported at the other end of the frame in alignment With the spring engaging means, a reciprocable valve engaging member slidably disposed in said guide for reciprocation toward and away from the spring engaging means, means for reciprocating said engaging member toward and away from the spring engaging means7 and means for automatically locking said valve engaging member in its most extended position toward the spring engaging means.

BENJAMIN J. GEISSER.