US1468121A - Valve-spring compressor - Google Patents

Description

Sept. 18,1923. mama A. E. MARTS ET AL VALVE SPRING COMPRESSOR Filed April 2, 1921 A TTORNEYS.

- This invention relates toI a device for comstem by the mechanic in a manner easier,

Patented Sept; 18, 1923.

err is r rras ASHLEY E. MARTS AND CLAUDE E. HEARTS, OF DARLINGTON, INDIANA.

VALVE-sienna coivrrzansson.

Application filed April 2,

L To all w 710m it may concern Be it known'that we, ASHLEY ldenrs and CLAUDE lVlARTS, respectively, citizens of the. United States and residents of Darlington, county of Montgomery, and State of Indiana, have invented a certain new and'useful Valve-Spring Compressor; and wexdo hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals reter to like parts.

spring, of an overhead valve construction so that the removable locking member, such as a cotter pin, can be removed from the valve than that heretofore employed.

The chief feature of the invention consistsinproviding suitable means, such that the spring compressingmechanism may be operated by the foot of the mechanic, thereby leaving his hands free to remove the locking member or cotter pin, and to, hold the spring and associated parts when the valve spring compressing means is released from engagement with the valve. 7

-;Another feature of, the invention consists in the means for adjusting the device to the particular valve with which the same is to be associated.

Still a further feature. of the invention consists in the construction ofsthe several parts such that the same interlock for limiting themovement of the valve compressing 7 member in the compressional and in thee tensional direction.

Still a further feature of the invention,

consists in the means associated with the valve compressing parts, whereby said parts will be normally malntalned 1n the non-com- The full nature of theinvention will be understood from the; accompanymg drawings and the following description and claims. i V i In the-drawings, Fig. 1 is a side elevational view of the invention and a cylinder head with which the same 1s ,aSSOClB/lld. Fig. 2 is an enlarged view of the means for adjustably supporting the valve compress- 1921. Serial No. 157,93

vided with suitablesupporting means, such as the standards or feet 11. Positioned upon the bench 10 is a baseor table 12, preferably of metal, and extending upwardly from the same is a hollow post'13 which is curved outwardly to form an overhanging arm portion ll. Preferably the overhanging arm portion 1a is provided with an upwardly extending angular arm portion 15, and said arm portion at its upper end terminates in a bifurcated portion 16 providing a pivotal support for one end of a beam or lever 17.

The other endof the lever 17 is pivotally connected to the upper end of a connecting rod or link bar 18, which bar is slidably ,supported in the upright portion 13, as

shown. The bar or link 18 is connected at its lower end to a treadle lever 19, which in turn is pivoted at one end 20 to one of the supports or feet 11, the other end being freeand projecting outwardly from beneath the bench 10 to provide a foot engageable portion 21.

Means formaintaining the beam or lever line 01- elevated position, as illustrated in Fig. 1, comprises a coiled spring 22 concentric with said rod and having one end bearing against a boss 21 formed upon the upright portion 13. The other end of the spring 22 is limited in movement by being secured to the rod 18 by the usual means, such as a washer 25 and a pin or burr 26. Thus, the spring 22 normally maintains the beam 17 and the connecting rod 18 in the elevating position until such time as the mechanic or operator depresses the treadlc beam or lever 19 by placing his foot on the extending portion 21 thereof.

' Upon the table or-base 12, there is shown a cylinderblock or head 30 provided with an overhead valve, including the valve stem 31, the valve spring 32 and the usual spring securing member, such as the plate or washer 33, which washer is limited in movement upon the valve stem by suitable means, such as the cotter pin, key or the like, which is of the usual construction. A foot member 35 is provided with a rectangularly e2:-

ing member. whereby, said member may be acqusted to the valves to be operated upon. Flg. 3;1 s an enlargedfplan v1ew of the valve tendingiportion 36, which eitending portion 36 18 b1 'urcated to form a recess, the arms of which are indicated by the numeral 37.

It will, therefore, be understood that the arms 37 are adapted to engage the plate 33 and compresses said spring 32 until the key membenassociated with the valve stem may be readily extracted from the valve stem bythe mechanic.

glowing means.

The 35'1is connected top-and, therefore, operated by thelever 17 by'the foln upwardly extending rod 40'is slidably supported in guide bearing e liormed in the endof the overhanging arm 1 4: and the base of the upwardly proj'ecting arm 15. The lowerend'o'f the rod {l is suitably secured to the foot while the 'iipper end olt' saicli'ocl is suitably secfured'to the beain 17. n Thus, movement of thetreafdle 2 1 will be transmitted to'the rod "lllgaiid, tliereiore jinove the foot to com and secured". thereto. in the lpresent in- 'stance'the collar 310 is connected to the lever 1.17 of the lever 17. Thus, when tlie'bar 18 one oi? the locking recesses 52 forined in the.

pi e'ss the valve spring, asheretofore de scribed, H

the beainllf consists of an adjustable connectmnas follows; The lever 17 s prov ded witliva central enlargement 117 which has (an elongated opening 118 therein, and

:n qligh aid openinglektends the rod 40. Upon the upwardly extending end of the rod aQ is positioned-a collar 5Q, which col- 'laris adjust'ably positioned upon the rod 40 17 115 me asioii pai '01 links 51,w1iich are secured at one endto the collar and at the other end to the intermediate enlargement or treadie 21 is depressedfthe lever 17 will carry with it the collar 50, aii'd, therefore,

the rod I40, as well as; the foot'3 5.

The means for position ng the collar v 1 ma plurality-of positions and securing saidcollar to saidi od inone oftlie adj listed positions consist ot a plurality of'reces'ses 52, which recesses are preferably in alignment with each otl'ier, asj shownclearly in .F 2.

Thecollar 50 is provided with a trans.- versely extending housing portion in which is slidably supported a detent or looking dog oe pigovided with a tapered end 55, so that said dog will readily engage in rod 54. The! dtent is preferably provided with, alstem 56 which-extends longi- ,tudinally and axially of the housing 53;

Concentric with said stem. with one end bearing against the detentje is a coiled spring 57;for forcii ig saiddetent into ajrecess 52' and yieldingly maintaining the same therein. lhe other end of the; spring 57 is threadedly securedvbyineans of the cap 68 in the threaded free end-bf the housing 5am shown. 'In'thepiesent'instance the stem 56 extends through the cap. 58 and carjfor connecting the rod 10 to ries upon its pater-free enchafinger engag- The apertured enlargement '1 lower stop or limit means for limiting the reciprocatory movemento'f therodeO, since said. rod will cnjgfage the endwallslll of the aperture and lock therodto prevent-further,

moviiiht. It will, of course,'be understood that the'above locking arrangement or movement limiting arrangement doesn ot prevent the rod 4.0 from having sufiicient movementto'compress the valve spring 32.

While the invention has beeh described in great detail, it willbe'understood'that many modifications thereof will readily suggest themselves to those skilled in the art to which this invention applies, and said modifications'are all Considered to bewithin the broad purview of this invention,'as outlined V by'tlie appendedclaims; The invention claimed is: I v

"l in a machine for compressing valve springs, the comb nation of a base,a'valve spring compressing member, lever means for reciprocating said valve spring compressing member to compress the valve spring, and pedal means for operating saidlever means.

' 2. In a machine for compressing valve 7 springs, the combination of a base, a valve spring compressing foot, a rod supporting said feet, actuatingineans for reciprocatingsaid rod to compress the valvespr'ing, and

means'adyustably'connecting said rod and I said' actnating means, 7 V V v V In a maehmeidn compressing valve springs, tlie coinliination of a base, a "valve spring compress ng foot, a rod supporting said foot, revmeeans for ireciprbc at'ing'said rod to compress the valve springs, pedal means for operatin'gfisaid Tlever means, and

saidlever means. p V

4. 'lnla 'machine for camp-easing valve springs, "the combination. of a base-,7 a valve spring compressing member, lever means for reciprocating said valve spring compressing member to compress the valve spring,- pedal means for operating saidlever means, and

means normally inaintaininfg "said valve spring compressing member in the non-en gaging position. r

, 5,111 a machine for compressingvalve springs, the combination of a base, avalve spring. compressing foot, a rod supporting; said foot, lever meansfforreciprocating said rod to compress the valve spr ngs, pedal means for operating said lever meansmeans ad ustably connecting said rod and said 16- ver means, and ineans normally maintaining said foot in the non-engaging position.

means adjustably connecting said rod and a rod slidably supported by said arm, lever V means pivotally supported upon said arm,

means for rocking said lever, and link means connecting said lever means and said rod,

' porting base, an arm overhangin said lever means straddling said rod.

7 In a machine, the combination of a sup 1') a rod slidably supported by said arm, lever means pivotally supported upon said arm, means for rocking said lever, a collar slidable longitudinally upon said rod, means ad justably securing-said collar to said rod, and link means connecting said lever means and said collar.

8. In a machine, the combination of a sup porting base, an arm overhanging said base, arod slidably supported by said arm, lever means pivotally supported upon said arm, means for rocking said lever, said lever means straddling said rod and having ensaid base,

gaging surfaces for contacting the same to limit the reciprocatory movement of said rod by the rocking movement of said lever means, and link means connecting said lever means and said rod.

9. In a machine, the combination of a supporting base, an arm overhanging said base,

a rod slidably supported by said arm, lever means pivotally supported upon said arm, means for rocking said lever, said lever means straddling said rod and having engaging surfaces for contacting the same to limit the reciprocatory movement of said rod by the rocking movement of said lever means, a collar slidable on said rod, means adjustably securing said collar to said rod, and link means connecting the straddling portion of said lever means and said collar.

In witness whereof, We have hereunto aflixed our signatures.

ASHLEY E. MARTS. CLAUDE E. MAR-TS.

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