US1579680A - Tool - Google Patents

Description

April 6 1926.,

- E. G. WALDEMAR Filed Dec. 15, 1924 FIGURE 2 FIGURE 1 INVENTOR ATTORNEY Patented Apr. 6, 1926.

UNITED STATES PATENT; OFF-ICE.

. nDwA aD-e. wALDEMAnor noLLIs'rEa, cAIIIronNIA.

TOOL.

Application filed December 1-5 1924. Serial No. 756,074.

To all, whom it may concern:

7 Be it known that I, EDWARD G. WALDEMAR,

spring normally engages to urgethe valve into its seat. 1 It is another object of the invention to provide a device of the character indicated that may be readily adjusted to meet the requirements of various types of engines, and that will be economical to manufacture,

positive in operation, and highly eflicient in its practical application.

In the drawing Figure 1 is aside elevationof the device in an operative position.

Figure 2 is a plan view of thesame.

Referring more particularlyto the drawing, I show at 1 a bell crank having a handle portion 2 and a tapped end 3 receiving a screw 4. t I

At 5 is a bar having one end turned at right angles thereto as at 6 and pivotally connected as at 7 to the angle of the bell crank 1. V v

The other end of bar 5 is also bent. at

right angles thereto to form arm 8. This arm 8 is forked at its outer end as at 9 and has a spring 10 mounted upon its inner side near forked portion 9 but directed away from said forked portion as shown.

For the purpose of illustrating the application of the tool I have shown at 11 a portion of the head of an engine having a valve 12 arranged therein. The valve stem is shown at 13 and at '14. is shown a plate 4 normally Yurged outwardly on stem 13 against a pin 15 set in said stem by spring 16 inserted between the plate 14 and shoulder 17 on the head 11.

If, now, it is desired to remove the valve 12 for the purpose of grinding the valve seat 18, or for any other purpose, the end of screw 4 is placed in contact with the valve 12 and the forked end 9 of arm 8 placed over the valve stem 13. The bar 5 and handle portion 2 of hell crank 1 are now drawn together by closing the hand upon spring 10as it passes thereover. The end of handle portion 2 being drawn past the free end of spring 10 the said spring snaps back to its normal position as shown, thereby holding the arms'S and Ginpaiallel relation to each other.

them, the handle portion 2 compressing I Y 'Thisrelative pivotal movement of arms 8 and 6 obviously cause the forked portion 9 and screw 4 to-approach each other, but

, sincethe screw is placed against the valve 13 the portion!) must engage plate 14- and compress spring 16. j

Afterthe pin 15 has been removed the spring 10 maybe compressed and the arms releasedwhereupon the tool is removed and the valve maybe taken'out. Y

The dotted lines at 19 indicate the tool with the spring 10 compressed by the handle portion 2.of bell crank l-just before" handle portion 2 and bar 5 are drawn together.

The screw 4 is preferably made long enough to permitadjusting the device to the requirements of different engine structures. It is obvious, of course, that many minor changes may be made in this tool without departing from the spirit of the invention, therefore it isto be understood that changes in form, construction and method of'operation may be made within the scope of the' appended claim. Iclaim: V I

A. tool of the character described comprising a rod having one end bent at right angles to form a pivot arm and the other end bent at right angles into parallel relation to said first mentioned end and forked to engage a valve stem, a spring element mounted on said lastmentioned end adjacent to said forked portion but directed away therefrom, and a bell crank having a screw mounted in the end of one arm and pivotally mounted at the apex of the 'angleformed by its two arms to the pivot arm on said first mentioned rod whereby its other arm will normally lie close to and in parallel relationto the first mentioned rod with its end in V engagement with said spring element.

EDWARD G. WALDEMAR.

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