US1147804A - Valve-spring remover. - Google Patents

Description

E. N. KRAENIER.

VALVE SPRING REMOVER. APPLICATION FILED DEC. 3, 1914.

EDWIN N. KRAEMER, OF CEDARBURG, WISCONSIN.

VALVE-SPRING REMOVER.

To all whom t may concern Be it known that I, EDWIN N. KRAEMER,

a citizen of the United States, and resident of Cedarburg, in the county of Ozaukee and Stateo'f Wisconsin, have invented new and useful Improvements in Valve-Spring Relniovers, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

' This invention has for its object to provide a valve spring remover constituting an improvement upon the construction covered by United States Letters Patent No. 1,035,974, dated August 20, 1912.

yhe object of the invention is to provide the valve spring remover with one jaw mem* ber having its parts forming the pair of projecting horns adjustable with relation to each. other to accommodate between them valve stems of projecting'valve guides of the invention consists in the valve spring remover as herein kclaimed Iand all equivaf lents. y

Referring to the accompanying drawing in which like characters of reference indicate the same parts in diiferent views: 4Figure 1 is a View of a valve spring remover constructed in accordance with this invention, showing the manner of use thereof, parts of an engine being shown in section for this purpose. Fig. 2 is an enlarged detail view thereof showingvthe spring compressed betweenits jaws; Fig. 3 is a plan view thereof; Fig. t is an end view thereof; and, Fig. 5 is a view of the adjustable jaw member looking atits inner face and showing by dotted lines the adjustability the-reo ln these drawings the partsare for convenience designated by the' same reference characters employed in the drawing of my former patent wherever possible.

The engine 8 with its exhaust valve 9 and cam 10, the valve stem 11, the cam rod 12, 'valve spring 13 and the valve casing 14, all being of ordinary construction and forming no part of the present invention, are shown as before to illustrate the manner of use of the valve spring remover. The valve casing 14, however, is shown with a depending lug or boss forming a valve stem guide 14 to show the necessity for lthe adjustable fea- Specification' of Letters Patent.

Application tiled December 3, 1914. i Serial No. 875,211.

Patented July er, 1915i lture of one of the valve remover jaw members.y f

The tool itself comprises, as before, the levers 16 pivotally connected to the trans verse member 17 with the pair of toggle links 20 connecting the levers to a thread ed rod 21 passing through an opening 22 in the transverse member and having the thumb nut 23 threaded on its end for opening and closing the levers. The jaw mem ber ofone of the levers 1G remains as before, with the opening 18 in its end to receivethe valve stem and the depression 19 to forni a seat for the spring.

'Instead 'of both jaw members being alike as before, the jaw member of` the other lever 16 is adjustable. The enlarged end 25 of this lever 16 terminates in a straight edge at right angles to the longitudinal axis of the lever and is rabbeted on its inner surface to form a shouldered guideway or seat 26 for a pair of jaw blades 27 which are held in place thereon by means of a bolt 28 passing through the member 25 and through slots 29 in the jaw blades. The jaw blades 27 are preferably` of sheet metal with theirV 'edges bearing against the shoulder of seat 26 so as to be guided thereby in their adjustments, and each having an outwardly projecting horn 30, with edges forming flanges 31 bent out of the plane thereof to form a seat for the valvel spring. These fianges 31 taper to awedge like shape to facilitate the introduction of the coil spring remover between the convolutions of the spring or between the end of the spring and the valve casing 14.

The objection to a coil spring remover with bifurcated jaw members on the ground that the members must be engaged with the spring beyond the end of the projecting valve rod guide or else the horns-thereof will be too far apart to retain the valve springs of other engines isovercome by the adjustability of the jaw blades of this invention which enable them to be moved to position the horns 30 nearer together or farther apart, either to closely embrace the thinnest valve rod or to receive between them theof the spring which will in all cases relieve the cotter pin 15V from pressure so that it may be removedand the valve with its stein witlnlra'wn, lea ving the spring heldbetween the jaw members of the spring remover until it is desired to reassemble the parts.

.The adjustal'iility'o one jaw member of the device is sufficient to adapt it forlise generally with motors of various sizes and makes so that the one tool is sutficientfeqilipment t'or removing valve springs in general `repair work. (l

Vhat I claim as new and desire to secure by Letters Patentis' 1. A valve spring remover, pairot1 bifurcat'ed j aw members, and means for 'moving the jaw'members `toward each .other for compressing a springl between them,y one of the j au' members com rising a pair of horns adjustable with .re ation to eachother'.

2. -A valve spring remover, comprising a pair of .levers pivotally'connected together,

means for moving thedevers toward or .aiay from each yothel ',`a forked jaw onone -..lever, there being a shouldered seat extendother, levera u pail.- 0f

ing transversely across the inner face ofthe yJlmv blades fitting together'on said seat, a olt'passmg ythrough comprising a the end of said lever and through slots in the jaw blades parallel with the shoulder of the seat, and horns projecting from the jaw blades to form together a forked jaw member with the horns adjustable with relation to each other. i

V S. A valve spring remover, comprising a pair of levers pivotally connected together, means for moving the levers toward or away from each other, a forked jaw on one lever, there beinga shouldered seat extend.- ing transversely across the inner face of the other lever, a pair of jaw blades fitting to-A vgether on said seat, a bolt passing through the `end of said lever, and through slots in the jaw blades parallel With the shoulder ot the seat, horns projecting from the jaw blades to form together aforked jaW inember with the horns adjustable with relation lto each other, and tapering fianges bent up from the edges ot' the horns to form a spring seat. l

vIn testimony whereof, I afli-x my signature, 1n jnfesence oftuo witnesses.

EDVVIN N, KRAEMER.

Witnesses:

R. S. C. CALDWELL, I {A'rnnmxn Hoi/r.

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