US1924246A - Spring compressor - Google Patents

Description

Aug. 29, 1933- H. w. KULP ET AL SPRING COMPRESSOR Filed Oct. 27, 1932 Patented Aug. 29, l933 v 1,924,2'46QQ '1 v" srlu vo oomnssoa" V o V Harry W.-'Kulp mama-fin Q-Dem ze 1 f i j I Lancaately Pa. o 1 i "Application October 27', 1932; 'SerialrNo. 638,912 1 5Claima. (01; 2946.3) invention relates to spring. compressors rivet 9 passing throughfthe rear portion 'of jthe otthe one hand Vpliermtype and is particularly vjaw portion 1' forvslld able pivotal connectionto V intended for use in compressing the valve said portion 1,said levers 5 and6crossingf each springsoi automobile internal combustion "en? other andbe'ing pivotally connected together by ,g i a a the rivet pin 12 at their central'crossing point. 6Q

The primary objects are to provide in such; a tool a construction whereby the opposedfaces of the operativeojaws'will bemaintained substantially parallel throughout their range of 10, I travel; to 'provide avery compact construction;

to provide :an automatic locking means; to so relaten-therlocking means with'other portions of thesdevice that said locking means will also serve as guiding-means and said other vparts will serve to maintain said locking means in a definite pathpfwtravel, and to provide said locking-means with a release lever disposed be tweenthe normal operative handles of {the tool, whereby said releasing lever will be readily accessible to operation by the mechanics finger and at the same time will be out of the way{ 1 3 I arcuate slots '11 in "th e levers r In the accompanying drawing:

Figure 1 represents a perspec'tive .viewot a" spring compressor our invention, in closed condition;

, Figure ,2, aside elevation of spring compressor in its extreme openposition;

- Figure 3, a sectional :view taken on the line 3-3 oi 'Figr 1, looking in the directionlof the Mai-rows} l, w

t Figure 4, a sectionabview of the handlever 4 taken on theline i -4 10f. Fig.1, looking-in the direction oflthe arrows; and.

F lre. 5,-.a.tfragmentary--detail view 7 of the;

i'leverr fi to show the camcsurfaces 11 :and 5, the rivet 10,being shownfin section, and'the adjacent portionlof the jaw memberZ being broken away-and shown in section toillustrate V therelation of the rem edge '2 of jaw member ifl2 and theflrivet 10 .tozsaid cam surfaces 13 andj 14-respective1y. r n.

Referring now in detail tothe drawing, the

v tool eompris es..a lower lever or beam havinga jaw. portion land arhandle portion 3, aoleverfi :having its lower end pivotally connected by rivet 8; to the forward portion of the jaw portion 1 immediately to the rear of. the bifurcation thereof and threaded through. the. rear portion of the up'perjaw member 2; to have sliding wiengagement therewith, and cross levers 5, pivotally connectedto: thezforward endportion o1 the jaw member 2 by a rivet 7 immediately 'to the-tre ariof the bifurcationdn the forwardportion 'ofsaidomember 2; and'havingtheir lower 5 2 ends arouately :slotted was ,at i :to receivejthef nel form arid will have itsfrear lower corners pivotally mounted thereon by the rivet 17 and having itsf urcations disposed, onopposite sides bifurcated[substantially pol-shape spring 20 H V handlejlis tto' be' fitted aroundGthe upper end'of lever 6 and secured thereto in anycorl The jaw member oribeamj 2"will be'of chant continue down beyondfthe race oft'he cam 1!" and is provided in the portions depending below said jcam [surface with registering 'pe'rtor'ation's formed to ,coincidef with the path of f movement of the lower-end of} levers 5 asfthesaidlevers lo 5" move rearwardly as 'a whole in accordance" with the movement of the l'ever'*6 about the piv'ot8 and simultaneouslyfturn about the pivot 12, in accordance with the movement of said a lever 6 as the jawfportions' l and 2' are caused to move toward orfrom each other.

A preferablvbiturcated locking. lever 15 is mounted so asto straddlegthe' lever 6, being" of thelever .6; at all times extending between said lever and the opposed-inner faces of thefrear: portions of the :si de sot saidi'channell member""2' and acting as spacing or guiding blocks maintaining the proper centered relation member'z'. H" g o I The forward ends pr said furcations will; be provided with a pluralityjof forwardly presented'stopfaces' or serrationsf 16 and-the ends of j the furcationsf formingthelevel fflfiare brought" together to the rear of the pivot 17; being erably rigidly connected together" as by welding as indicated at 18, and continued in the-form' of an upwardlycurvedoperating leverlthaving its rear end portion formed wltha perfora tionl9 which,receivesjfthe loop portion'of the,

which straddles and is positioned lbythe upper end portion otr the lever 6 and bearsagainst" j v s between said lever 6 and the channelg form'aj aw :ioo I tions of the levers 5 and the lever 6 in the final the opposed lower face of the handle 4, so shov ing the lever 18 downward and serving to yield-:

ingly force the furcations of lock lever 15. up-

of the lever 15 will be progressively withdrawn from between the sides of the member 2 and lever 6 and the spring 20 will cause'the lever L 18 to be depressed, so that as each pair of looking stops or faces 16' moves past the rear edge 2 of member 2, the spring 20 will turn the locking lever 15 so that said stops will en-' gage said edge 2, locking the parts against reverse movement until the lock is released.

The locking lever 15 has its legs or furcations' recessed as at 21 so as; to receive, or not tointera ferewith, the rear ends of the levers 5, as illustrated in Fig. 1.. It] will be notedlthat in this relation of the, parts the portion, of the, lever 6 immediately to the rear, of and adjacent the cam faces 13and. 14Iwill be disposedv between the rear ends of the levers 5 substantially in a I mainlever member having a jaw portion and a rubbing contact therewith; r b

The respective levers or links 5 are disposed on opposite sides of itheleve'r 6 and have a large area rubbing contact therewith'to be properly -held and-spacedapart thereby, and this construction in association .with the interposition of the respective ends of the furcations of the locking lever 15 between the respective sides of the lever 6, and the opposed faces of the corresponding sides of the jaw member 2, and in association with the relationship of the ,rear porstages of the closing movement of the parts,

serves to provide a very sturdy yet freely moving. construction which is very thoroughlyv braced against. lateral, distortions or fwe'aving of the parts in stress,

Preferably all portions of the valve-spring compressor illustrated, with the exception of the rivets and the spring, are made from sheet metal stampings and preferably thelower beam comprising the jaw portion 1 and the handle portion 3, and also the upper jawmember 2 and the handle 4, will be of channelform in cross section.

Preferably also the rear portion of the web of the member 2 will be centrally struck'up as at 2 toprovide a guiding channel to receive the edge portionof the lever 6 and center the rear' endof the member 2 with relation tov said lever ,6, thus contributing to the bracing against lateral distortion, However, "this feature is not es sential and maybe dispensed v b All views ofthe accompanying drawing are made to. ascaleof. two-thirds actual size from an actual commercial specimen of the 'tool.

Having thus described our invention, what we claim as new and desire to secure by Letters Patentis: I I H 1.A springjcompressing tool comprising a mainlevermember'having a jaw portion and a handle portion, a jaw member, an actuating lever member extending through said'jaw mem-' ber and pivotally connected to said main lever member, and a pair of cross levers crossing said actuating leverfand being respectivelydisposed edge of said jaw member.

substantially in sliding contact therewith on opthroughout the range of relative movement, be-

tween said main lever and said actuating lever,

- in combination with a bifurcated locking member havinga rearwardly' extending release lever disposed between the planes of the sides of the said handles in all relative positions of said handles, and a bifurcated U-shape wire spring having its loop extending through said releasev lever and with its furcations straddling and gripping the actuating lever andbearing against the handle'secured thereto to force said release lever to locking'position, said locking member having a bifurcated portion straddling said actuating lever and having its fur-cations respectively lo'catedbetweenfthe sides of said actuatingl'ever and the opposed faces of said jaw member and having the forward end edges of said furcations formed with 'a plurality of stop faces'to engage the rear edge of said jaw member."

2. A" spring compressing tool compnsing a handle portion,'a jaw member; an actuating lever member extending through said jaw member and-pivotallyv connected at its' forward"end portion to said main'levermemb'er to therear of the jaw thereof, and. means connected to said actuating lever for maintaining the jaws 'of said main lever and said jaw member substantially parallel throughout the range of their relative movement, in combination with a locking member having a rearwardly extending release'lever disposed between said handles, and resilient means toforce said locking member to operative position, said locking memberhaving a bifurcated portion straddling said actuating lever" and having its furcations respectively located between the sides of said actuating lever andthe opposed faces of said jaw member and havingthe forward end edges of said furcations formed with a plurality of stop faces to engage the rear 3. A spring compressing tool c omprisingia main lever member having a jaw portionand a handle portion, a jaw member, 'an' actuating lever member extending through said jaw m iember and pivotally connected to said main lever member andself compensating means connecting said jaw member and said main'lever member to maintain their jaws in substantially parallel relation throughout their range of movement, in combination with a locking 'member having a rearwardly extending release lever dis'-' posed between saidhandl'es in allrelative sitionsof said handles, and a spring to force said release lever to locking position, said locking memberhaving aportion located between the side of said actuating lever andjthe' opposed face of said jaw member and having'the forward end edge of' said portion formed with a plurality of stop faces 'to engage the rear edge of said jaw member. V v

4. A spring compressing tool comprising 'a. main lever member having a jaw portion and a handle portion, a, jaw memberand 'an'actu-..

ating lever member extending through said jaw member and pivotally connected to "said main lever member, combination with la locking member having a rearwardly extending release lever disposed between the planes of j the "sides member "having a bifurcated portion straddlingsaid actuating lever and having its furcations respectively located between the sides of said 7 member wardly extending release lever disposedbetween the saidhandles in all relative ppsitions of said 7 handles, and resilient means 'to-force saidfre 1 leaselev er to locking position, said locking mem- "ber'having a portion. located between the side of said actuating lever and the opposed 1' face of said jaw! member and being formed with a j stop face to engagejtherear edge of said. jaw

a handle portion, a jaw member, andan-actuat ing lever member extending through said jaw member-and pivotallyeonnected at its f -orward endportion to said main leverfmem'ber; in combination' with a locking member having a"rear-,

I I HARRY WQKU P. CQDELLINGER.

actuating lever and, the opposed faces ofsaid jaw member and having the forward end-edgesof said furcations formed with a plurality o1 stop faces to engage the rear edge of said jaw I 3 member.

l5 5. A spring eompressing tool comprising a main lever member having a jaw :portionand'

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