US1208406A - Valve-remover. - Google Patents

Description

VALVE-anatema.

. yLeon/106.

2 'o all 'whom 'it may conce/mi 13e it known that I, CLARENCE Oi'ro THROP, a citizen of the United States, 'and resident of Jefferson, in the county of Greene and 5 State of'lowa, have invented a certain new and useful Valve-Remover,` of which the following is a si'iecificatioii.

The object of my invention is to provide a valve remover of simple, durable and inexpensive construction.

mover adapted to be used on internal combustion engines, or motor vehicles, and so arranged and constructed thatpart lof the tool mayremain fixed in position with relation lto an engine, while the other part may be moved for raising the valve spring, or compressing it in'sucli a' Way4 as to permit ready access to parts of the valve stem. My invention consists in the construction, arrangement and combination of the variousv parts of the device whereby the vobjects conteinplated are attained asliereinafter more fully. s et ""orth, pointed out in my claim and illustrate in' which:

Figure lshoivs a side elevation of a valve i'en'ioving tool embodying my invention, parts of the engine' being shown in section. Fig. '2 shows a horizontal sectional view taken on the line'Q-Q of Fig. 1, the dotted linesshowing theshape of the opening in.

the part of the tool, which raises the spring. Fig. @shows an inverted plan view ofthe cam lever, and Figa shows a side elevation of a modified form of my invention, as apy n `ranged arm 17 is a laterally.. t

plie'dto a valve. -It is ivell known to `mechanics who work Ain automobile repair shops and factories,

40 thatitis diflicult to remove the valves-of an internal .c'ombiistion engine for grinding. Satisfactory tools for .removing the v alves -li'ave been unknown. The diiiiculty will be understood-frein .ai veryjbriefapxplanation `of, the Teinovalbin viali-'dif 'lvalieiiinEOIil high engages carsfiT instance-dias aste a tappetmor: additinal sltenpraited bv a ram. Frequently v*the valve stem hasia'ollnr 'or its equivalent held lay-..afpi-Ii-extended through the collar and the stem-.z -...The's`pring must be .eontraetedaway from the collar and the pin, in order to .remove them to make it. .possible to remove the valve for grinding.

On different engines the valves are differ- 55 ently'arranged with relation to the body of the' engine, and it Inay be .said that the Specification 'of etters Patent. Patented application mednarch 31,1915. serial-No. 18,404.

A. further object is to provide a valve re-4 ir accompanying drawings,

free end adow'rfwardV eXtension28,. t lie tion.. during the 'operationgo h a substantially right same -tool will not ordinarily:serverfomcm pressing the springs ofz'engi'rresfof,dieljenttypes.4 h`My improved valve' I-:eKlOi/ilgf wel...

'is designed to obviate theseqdiiioultesnand is adapted to be usedwithiias air'ety of engines.

In the accompanying .drabI ings Lhvl used the reference numeral-alOr-'tovindinvte the parts of the engine having the-N8J1Ve13i1-w.

onv the seat 12. The valve-11,11% thflfm -13, 0nwhich is a collar l4 he1d in position by a pin 15. On the stemlfisa spring .13

It will be noted that in the type ofgengine partially illustrated Y in thevadrawing. the., part 10a of the engine frameoribodyextelds; 'Y outwardly over the valve. Abogveth inthe type of engine shoivnfin AFig opening 16, ordinarily closed some able way when the engine i 1se. .l

In. Figs. 1, 2, and 3 I have shovvngn of my improved valve. removing tool, .wh i i 22 parallel with the arm.1

end ofwhich is adapted toengage tion'of an engine and reinaini'l illustrated in .the drawing-nr the'rorton '2.3 .engages .th fln. connection ...Withhe comno'sed f twoiiarallel JI ofthe anmslZ a. 're openin' Y wliicli terwit-h cath other. Thenrn's 51..2L1gjfed to be sciired to the member' '17'b`y' exten-ding a pin 27 through the openings 26 and selectively mounting the pin 27-in one of the openingsv 18.A The arms 25 are provided 11o with parallel cam faces 28, and the portion 24 is provided with a flat portion 29 adapted to engage the upper surface of the arm 22- for locking the parts in position, as will .be hereinafter described. l

I shall now describe the practical operation of the form of my device illustrated in Figs. 1 to 3 inclusive. The tool being approximately adjusted for use on the par ticular size and type of engine from which the valves are'to be removed, by selectively mounting the pin 27 in the properhole 18, the lever is raised tol its position shown by dotted lines in Fig. 1, -tlieextension 23 is then placed yon Ltop of the valve, as illus trated,4 while the portion 20 of the member 19 is inserted beneath kthe spring. In this connection attention is called to the fact that sometimes there is a ywasher below the spring,and that the extension 20 is actually in contact with the washer and not with the spring. The operation, however, of the tool is the same whether the portion 20 engages the .washer or the spring. The handle 24is -then swung outwardly and downwardly,

wherebythe cam face 28 is forced against the upper surface of the arm 22, thereby drawing the membersl, 19 and 20 upwardly. and contracting the spring 13, and removing its lower end from the collar 14 and pin 15. The parts are so arranged that when4 the lever 24 is swung downward to substantially horizontal position, as illustrated by the full lines in Fig. 1, the dat 4j-portion 29 engages the upper surface of the arm 22, so that when a load is imposed on the tool by the contraction of the spring, the parts are locked in the position, shown in Fig. l. The operator may then leave the tool standing in itsA locked position, and remove the pin 15, which makes it possible to slide the collar 14 on the valve stem, after which the removal of the valve is an easy QPivoted between the lugs by means of a pin 34 extended through the openings 32 is a --lever arm 35, the free end 36 of which is constructed substantially like the member 20. j Pivoted to-the arm 35 is a lever 37 extending downwardly from` the arm 35 and having a handler' 38 extending upwardly and l' away from .the lever 37'in the opposite direction from the end 36. The lever 37 has a cam face 39, adapted `to lit in a` groove 40,

4shown byV dotted "lines in Fig. 4, and a -por-4 tion 41 adapted to extend into said groove and to lock the parts in position, after tlie lever has been operated.

In the practical operation of the form of the tool shown in Fig. 4, the end 33 is placed on the valve tappet 44 below the collar 14, the lever 38 is raised to substantially vertical position, and the end 36 is placed just below the ,spring 13. The arm 38 is then swung outwardly and away from the spring, causing the cam face 39 to engage the arm 30, and to force the end 36 away from the end 33, therebyraising the spring 13a away from the end 33. When the handle 38 reaches its substantially horizontal position, as illustrated in Fig. 4, the parts are locked and the operator can then remove the pin 15, for vthereby loosening the collar on the Stem 13.

It will be understood that some changes may be made in the construction and arrangement of the parts of myimproved valve remover without departing from its essential vfeatures and purposes, and it is my intent to cover by this application any such changesl which may be included within the scope of the following claim.

I claim as my invention.

A valve remover comprising an upright member provided with a plurality of spaced openings, a lateral extension at the lower end of said member having forked ends adapted. to receive a flat stem between them, a later ally 4extending arm slidably but non-rotatably mounted on said upright member parallel with said extension, having at its free end a downwardly extending member arranged to be .above the space between the forked arms of said extension, a lever arm having a bifurcated-curved end provided with cam faces, the bifurcated end members .being provided with registering openings, and a bolt detachably extended through said last openings and selectively received in one of the openings in the upright member, said lever arm and bifurcated end portions there of having a flat portion designed to rest im-v tion substantially in line with the upper surface of said arm when the lever arm is 1n one position of its movement and to be swung upwardly to position adjacent to the. upper end of said upright member with said' bifurcated end above the laterally extending arm in another position of said lever.

Des Moines, Iowa, March 12, 1915.

CLARENCE or'ro THRoP.

Witnesses:

A. SHERMAN, J. MAHER.

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