US1892824A

US1892824A - Valve lifter

Info

Publication number: US1892824A
Application number: US509353A
Authority: US
Inventors: Walter L Ziegler; Joseph W Durnell
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-01-17
Filing date: 1931-01-17
Publication date: 1933-01-03
Anticipated expiration: 1950-01-03

Description

1933- w. 1.. ZIEGLER ET AL 1,392,824

VALVE LIFTER Filed Jan. 17, 1931 W 12V V? T 017$ 1.47:7: Asa/Jae. .2/ 2g 2 I Joan M Dun/mu.

35 In the drawing Patented Jan. 3, 1933 UNITED STATES: PATENT OFFICE WALTER L. ZIEGLEB AND JOSEPH W. DURNELL, 0]? LONG BEACH, CALIFORNIA VALVE LIFTER Application filed January 17, 1931. Serial No. 509,353.

This invention relates to a valve lifter engine head with the valve lifter shown in whereby the valves of an internal combustion Figure 6 in operative position thereon. engine are so acted upon as to make them Figure 9 is a front elevation of a modified readily accessible for grinding or replace form of spring support.

merit, Figure 10 is a perspective view of the sup- 53 An object of our invention is to provide a port shown in Figure 2. novel. reliable and simple means for the re- Figure 11 is a perspective view of the supmoval and replacement of valves in internal port shown in Figure 9. combustion engines, and the like. Referring more particularly to the draw- 10 Another object is to provide a novel valve ing, the numeral 1 indicates an engine block 09 lifter which will allow the valves to be of the L,- or T head type, which includes a cleaned, ground, or removed without removvalve 2, a spring 3 surrounding the valve ing the valve spring from its position about stem and normally urging said valve against the valve stem, and without the removal of Its Seat, a m shaft 4, and a cam follower w the valve lifter assembly. In valve lifters heretofore in use, the valve (15 Still another object is to provide a nove l compressed y P Of the valve lifter in which there is less danger to valYe hftel? Whlch engaged the bottom of the the workman, that is. he is less likely to injure g the keeper was then the Q his fingers bv the sudden expansion of the valve lifter was released, and the sprlng was valve spring due to the failure of the valve h f h around h Valve Q 73 lifters heretofore in use to properly grip the Thls .reqmred c.on.slderable tune and with spring. our llfter we eliminate the extra work and An advantage of our invention is to profi g 2 removmg the Valve Sprmg from vide a valve lifter of the character stated in t e 00 When starting to grind the valves or re- 75 l gl gg g g zggf keeper readily place the same, the cam shaft 4 is caused to A further advantage of our invention re? rotate, and one of the valves is raised in the sides in the overhead raising of the valve i fi T g iii' Our i i prior to holdinv the spring compressed. 00 18 i ap led an t 18 tool 3% Other objects advanta e and features of of handle i 91 extends from and 1S so invention may appear from the accompanytegral Wlth a-palr of Spaced fingers's 8 h s 1 lug drawing, the sub oined detailed descripg fiz g l ggi gfggg s 3:3 g fig and the appended chums valve, as shown in Figure 1. After the raising tool 6 has been inserted under the head 55 Figure 1 1s a fragmentary, vertical, of the valve, the cam shaft 4 is rocked back l Y of block with our Valve so as to leave the follower 5 free to drop away him? W P from the valve stem. The tool 6 is then op- Figure 2 1s a front elevation of the valve emted to lift the Valve 2 upwardly which p h PPP compresses the spring 3. This operation is 93 3 11 9! P "l of the sameaccomplished by swinging the handle 7 down- Flgm'e 4 19 i slde elevatloh of the "hive wardly in an are which causes the tool to r l errock on the curved portion 9 at the rear of Figure 5 1S a bottom plan VIE 0f the the fingers 8&3? The spaced fingers are so 45 same. arranged that the seat on the valve head can- 93 Figure 6 1s a fragmentary. bottom plan t b ratched. view of a modified form of valve lifter. The spring support 10 is now inserted be- Figure is :1 sectional view taken on line tween the bottom of the. spring 3 and the top 77 of Figure 6. of the cam follower 5, as shown in Figure 1. ea Figure 8 1s a'vertieal sectional view of an or between the follower lock nut, the base, 109

or the followers. The spring support consists oi a semi-cylindrical body 11 which terminates in an inwardly directed arcuate flange 12 on the top thereof. The spring 3 rests on this flange during the valve grinding or replacing operation.

A wall 13 is integrally formed on the bottom of the support 10, and this wall is provided with a notch 14. The purpose of this notch is to receive any projecting part of the cam follower 5. lVhen the spring 3 has been fully compressed, in a manner previously described, it is a relatively simple matter to insert the spring support in the manner shown in Figure 1. The handle 7 is then released and the valve is free to drop upon its seat'and can be ground or resented as necessary. To the support 10. we provide a rib 15 is integrally formed in the body 11,

y and hook is inserted around this rib and the support jerked out after the valve is ground.

Tie spring supports 10 are made in various diameters and various lengths to fit different types of L- and T-head engines. For the overhead type of engine, we provide a spring compressor as shown in Figures 6 to 8 inclusive. This type consists of a handle 16 on one end of which a head 17 is integrally formed. A. link 18 is mounted in the head 1'? as follows: A slot 19 extends longitudinallv in the head 17. and the link 18 is formed with a transverse lug 20 on the top thereof. which lug: extends across the slot 19. A plurality of hon"- .21 is formed in "the linlt l d. and one of these holes fits over a stud 22 which extends from the head 23. and the spring 25 sun rounds the valve stem and urges said valve on to its seat.

A block 26 is placed in the combustion chamber when the head is on the bench to keep the valve from dropping down. The head 17 is also provided with a. circular recess 52'? which receives the top of the spring 25. An opening 28 is provided through the head 'lZ'so that the valve stem. can project therethrough. The valve litter is arranged as shown in Figure 8 and pressure is exerted on the handle 16. The spring 25 is thus compressed and the valve spring" keeper in the end oi the stem can be quickly and easily re-- moved. The spring compressor is then re leased. and the spring is removed.

lo the modified form of spring support shown in Figure 9. the usual semi-cylindrical. bod "ii is provided. as previonslv described. The srcuate flange at the top and th wall at the bottom oi? the bodv mav be detachable, that the bottom wall 30 is formed with. pair of side fingers 31-31 which grip the body of the support, and a. third finger 39; extends into a hole 33 which is formed in the body. Thus the'bottom wall is securely held on the body and a cheaper construction is was provided than the type shown in Figures 2 and 3.

Having described our invention, we claim:

1. A valve tool comprising a semi-cylindrical body, an inwardly extending flange integrally formed on the top of said body, the valve spring being adapted to rest thereon, an inwardly extending wall on the bottom of said body, said wall having a notch formed therein into which the cam follower extends.

2. A valve tool comprising a semi-cylindrical body, an inwardly extending flange integrally formed on the top of said body, the valve spring being adapted to rest thereon, an inwardly extending wall on the bottom of said body, said wall having a notch formed therein into which the cam follower extends, and rib integrally founed in said hoo whereby the tool is removed after the valve is ground.

3. A. valve tool comprising a semi-cylindrical body, a bottom wall detachably secured to the body, fingers on said wall, said body having a hole formed therein, another finger on said wall, said las a; named finger project ing into said hole whereby the wall is held. in position, and said wall having a notch formed therein.

4:. A valve tool comprising semi-cylindri cal body, a bottom wall detachably secured to the body, fingers on said wall, said bod j having a hole formed therein, another finger on said wall, said last named finger projecting'r nto said hole whe eby the wall is held in position, and said wall having a notch formed therein, and an inwardly extending flange integrally formed on the top of said body.

In testimony whereof, we athx our signatnres.

VIALTER L. ZIEGLER. JOSEPH "W, DURNELL.