US1296784A - Valve-lifter. - Google Patents

Description

E. E. ESSEN.

VALVE LIFTER.

APPLICATION FILED MAR. 1a. 1918.

Patented Mar.

. 19 in a ss N. (NVENTOR BY Z A TTORNE Y adjusting foot.

throughout the views.

ERIC- Er ESSEN, OF BROOKLYN, NEW YORK.

. VALVE-LIFTER.

1 ,Zgfiflgd, I Specification of Letters Patent.

Patented Mar. 11, 1919.

Application filed March 1c, 1918. Serial No. 222,941. I

and useful Improvements in Valve-Lifters, I of which the following isa specification.

This invention relates to valve lifters, and especially to that class wherein a G bracket is rovided with an adjustable lever.

ne advantage of this invention is to provide a valve lifter so formed as to reach the parts of a valve to be removed without necessitating the previous removal of other parts.

Another advantage is to provide a valve lifter which has a lever which is easy. to operate and accessible in all positions.

A further advantage is to have a valve lifter provided with a self locking lever.

A still further advantage is to have in a valve lifter a lever which is fulcrumed upon a bracket and provided intermediate of its ends with a series of holes to receive a'pin for difi'erent positions for said fulcrum.

Yet another advantage is to have a valve lifter having a lever provided with a self Further advantages and possibilities will become apparent as the specification proceeds.

Referring toithe drawing, Figure 1 isv a side view of an apparatus embodying the present invention in operative relation to a valve shown in vertical section.

Fig. 2. is a similar view with the apparatus of the present invention in its final useful position.

' Fig. 3.'is a perspective-view of the bracket 6 of Figs. 1 and 2.

Like numerals denote the same parts in repairing or adnsting internal combusti-on engines it is i uently found that inlet and exhaust valves mustbe removed for regrinding or replacement. The removal of such valves has always presented great dificulties and been a source of considerable trouble and waste of time. The valve springs are exceedingly powerful, fre quently exerting a pressure of 100 lbs., and

this must be entirely overcome in order to remove the washer beneath the spring and the key supporting the same. Thiswould be fairly easy of accomplishment if it were not that the mentioned parts are so inaccessible because of the superstructure of the engines, especially the last V type motors.

It is proposed to remedy this condition of affairs by using a valve lifter which is very simple in construction and operation. It consists of a bracket 6 exteriorly ribbed and provided at its upper extremity with a fulcrum block 9, a lever 7 pinned therein, and at the lower extremity a fork 3.

When a valve 5 is to be removed, the cap fitting thread 8 is first removed, exposing the valve head. The bracket 6 is passed down into the channel between the cylinder blocks and set underwasher lso that fork 3 straddles valve shank 5. Then the adj ustable foot 10 is superposed upon the head of valve 5 to prevent the latter from rising. If the position of lever 7 is too horizontal too little leverage will result, so the pin may be withdrawn from fulcrum block 9 and pushed through another hole in the lever so that a starting position would appear similar to Fig. 1. The spring 2 bears up against cylinder blocks 11 and down upon washer 1, which latter rests upon key &, thus retaining the valve 5 in closed position. If the lever 7 is now pushed over to the position shown in Fig. 2 the pin in block 9 will pass dead center above the foot 10 and the valve, and will thus remain, self locked. Bracket 6 having been raised, it will be seen that fork 3 has forced up the washer 1 and compressed the spring 2, exposing the key 4:, which is then fully accessible. In view of the fact that the lifter is in locked position, both hands are free and attention may be directed to removing the key. This being comparatively easy, being accomplished, the

lever 7 is drawn to the left, and the bracket lifted out from under the washer. -The washer and spring, now finding no lower limit immediately project downward and release valve shank 5, which may now be picked out with ease.

As it is possible to slightly modify the lever 7 and also to make an open slot tending downward of the hole in the fulcrum block 9, I reserve all rights to make all such modifications, as may be deemed compatible with the scope of the appended claims.

Having thus fully described my invention, I desire to obtain by Letters Patent 1. In combination in a valve lifter, a bracket having a lower bifurcated portion and a slotted block upon its upper portion, in said lever, and a foot movably joined to 15 a lever movablypinned in said slotted block, said lever. and a foot movably jointed to said lever to Signed at 226 Flatbush Ave, in the borprovide a secondary fulcrum for the same, ough of Brooklyn, county of Kings, city and 5 there being a series of holes in said lever to State of New York this 14 day of March, provi% 1 difi'ertent leverages thereqfkt 1918.

.2. e com ination in a valve i er, of a bracket-provided with a lower bifurpated ERIC ESSEN' portion and in its upper extremity a pin, Witnesses:

1 with a lever operatively supported by said V. H. JAooBsoN,

pin passing through one of a series of holes C. F. WM. FoRssBERG.

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