US1701672A - Valve-spring compressor - Google Patents

Description

Feb. 12, 1929.

L. M. HALDE N VALVE SPRING COMPRESSOR Filed NOV- 15, 1927 '2 Sheets-Sheet l Feb. 12, 192 9.

' L. M. HALDEN VALVE SPRING COMPRESSOR Filed Nov. 15, 1927 2 Sheets-Sheet 2 gmmwz LJZHa lien abbozawq Patented Feb. 12,1929.-

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LEONARD M. HALDEN, or means FALLS, MINNESOTA.

VALVE-SPRING COIMPRESSOR.

Application filed November15, 1927. Serial No. 233,469.

This invention relates to a valve spring compressor and it consists in the novel teacomprises a lower jaw member having inwardly and upwardly disposed lugs adapted to receive one end of the spring and an upper jaw member pivotally mounted upon the said lower jaw member. The upper jaw member is provided with upstanding end portions having inturned and downturned extremities adapted to bear against the upper end of the spring A slide loop is mounted upon the said jaw members and serves to hold the members against spreading movement when the spring is inserted between the jaws. A. lever is fulcrumed to the lower member and connected by means of a'linl: with the upper jaw member. When the said lever is swung with relation to the lower jaw member, the upper jaw member is swung upon the lower jaw member so that the spring which is received between the jaw members is compressed. When the spring has been compressed, the loop is slid along the jaw members whereby the spring is held in compressed condition between the jaw members.

In. the accoi'npanying drawings Figure 1 is a side clevational View of the valve spring compressor;

Figure 2 is an edge clevational view thereof;

Figure 3 is an enlarged fragmentary sectional view of the compressor showingthe some applied Figure 4: is an end elevational view of the cinnpressor showing a s n'ing held therein;

Figure 5 is a tramsverse sectional view of the compressor.

As illustrated in the accompanying drawings, the valve spring compressor comprises a lower jaw member 1. Said member consists of a strip of metal bent between its ends and having spaced side portions. Said jaw member is provided at its working end with upwardly and inwardly disposed lugs 2 upon which one end of a coil spring 3 may rest. An upper jaw member t similarly formed,

is pivoted at one end to the jaw member 1.:

at a pointbetween the ends thereof and the member dis provided at itsworlnng end with upstanding end portions 5 having inturned and downwardly disposed extremt" tics 6. lVhen the con'ipressor is applied to the spring 3,] the extremities 6 are disposed acrossthe upper ed ofthe spring. A loop member 7 is slidablo upon the upper and lower jaw members and may hold thespring 3 in compressed condition. A levee/r8 is ful crumed to the lower jaw member 1 and its working end is connected by means of a link 9 withthe intermediate portion of the upper jaw member 4t. It is apparent that by swinging the lever 8, the jaw meml er may be swung to bring the two members into superposed relation and when the said jaw. members are so related, the loop 7 may be slid p in one direction along the member 1 to hold the members in operative or spring compressed position, or in the opposite direction beyond the end of the member 4:, so that the member 4; may swing with relation to the member 1 to inoperative or spring released position. By reason of the fact that the upper jaw member is provided with the up standing end portions 5, the spring may be inserted in position upon the'engine in the event that the engine is provided with the usual web or flange adjacent the cylinder head.

The opposite side portions of the jaw member 1 are pivoted on a pin 10 which passes transversely through the lever 8. The end portions oi the pin 10 extend beyond the outer side surfaces 031? the side portions of the member 1 so that the side portions oif'tho said member may spread in order to receive springs oi? dilierent diameters between their working ends. A pivot pin 11 passes through the opposite side portions of the aw member 1 and also passes through the links 9. The end portions of the pin 11 extend beyond the outer surfaces of the side portions of the member 42 so that the said side portions may spread in order that springs of di .Tercnt di ametermay be received between their worlring ends. The lug s 2 carried at the ends of the side portions of the member 1 are upwardly and inwardly disposed as best shown in Figure at of the drawing in order that they may engage under and within the lower end of the springand consequently when they are appliedtothe spring the side portions of the member 1 cannot spread upon the pin 10 to such an extent as to permit the lugs 2 to disengage the spring. The-extensions 6 upon the upstanding portions 5 of the sides of the member 4 are inwardly and downwardly disposed as best shown in Figure 4c of the drawing and are adapted to engage over the upper convolution of the spring. Thus when the spring is compressed the side portions of the member 4 cannot spread to such an extent as will permit of the extremities 6 disengaging the upper end of the spring.

I claim 1. A valve spring compressor of the character described, comprising a pair of elongated members, one thereof having pivotal connection with the other for swinging the members into superposed relation, an actuating lever pivotally mounted upon one of said members and having link connection with the other thereof for actuating the members to operative or inoperative position, and means for latching said members in operative position, comprising a substantially U-shaped member overlying one of said first-mentioned members and having the free ends of the legs thereof turned inwardly to engage beneath the other of the first mentioned members and designed when the members are brought into superposed relation to he slipped forwardly thereon to look the same in position.

2. A valve spring compressor comprising a pair of jaw members each of elongated substantially U-shaped design, one of the jaws ieing shorter than the other and having its looped end pivotally mounted beneath the of the other aw to bring thet'ree ends of the jaws into subs'antial alinement when the same are brought into superposed relation, relatively long pivot pins connecting the legs of the jaw members adjacent the free ends thereof, said jaw legs being freely slidable upon the pins passing therethrough to permit them to spread for engagement about a spring, and a jaw actuating lever mounted upon the pivot pin of one of said jaws and having link connection with the pivot of the other jaw, for drawing the free ends of the jaws together for the compression of a spring engaged therebetween.

In testimony whereof I hereunto afiix my signature.

LEONARD M. HALDEU.

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