US1082917A - Valve-remover. - Google Patents

Description

\ A. E. STOKER.

v VALVE RBMOVER.

APPLICATION FILED MAILZ'I, 1912.

Patented Dec. 30,1913.

Warren STATES PArivr FFTCE- ARTHI IR E. STOKER, or BUFFALo,?rLrZINn s.

VALVE-REMOVER.

Specification of Letters Patent. Patented Dec, 30, 1 91 3,

Application filed March 27, 1912. Serial N'of686fd82.

To all whom it may concern Be it known that I, ARTHUR E. S'roinnz a citizen of the United States, residing atremoved and the valve lifted from its-seat.

An object of the invention is to provide a valve remover of the above character, the parts of Which may be readily disassembled for the purposeof storing the same.

A further object of the invention is to provide a device of the above character with a compressing lever which is located directly in line with the spring of the valve, so that the spring may be compressed with little or no twisting of the parts of the valve remover.

In the drawings which show by .way of illustration one embodiment of the invention, Figure 1 is a vertical sectional view of a portion of an engine, showing the application of my valve remover, certain parts of the valve remover being shown in section; Fig. 2 is an enlarged detail viewofthe actuating parts and the supporting barrel therefor, certain parts being in section; Fig. 3 is a detail in perspective, showing one of the arms of the supporting frame; Fig. 4 is a detail showing a modified form of jointvfor the members of the frame; Fig. 5 is a detail showing the manner of folding. the frame.

In the'drawings the engine cylinder 1 is provided with a valve chamber 2 in which reciprocates a valve disk 3, having a valve stem 4. At the lower end the valve stem is formed with an opening 5 through which extends a pin or supporting plate 6. Said pin forms an abutment for the spring 7 which bears at its upper end against the lower face of the valve chamber. This spring normally holds the valve seated, but allows the same to be lifted from its seat through the suction of the engine. This is the ordinary form of spring-pressed valve,

and further description thereof is not thought necessary.

The present-intention relates to a device for removing ava le of the above character. Said device consi ts ,of a frame 8 which is formed as hereii shown, with a single ver tical' portion 9 having a rectangular opening 10 adjacent each end thereof. An arm 11 is forked at its free end and is adapted to "straddle or receive ,the valve stem so that each side of the fork n ay engage the spring 7 on the valve stem; This arm 11 is formed with a contracted neck-:12" which provides shoulders 13. Said arn 'also'ahas a T-shaped head 14. The neck 12 is eurved as clearly shown in ig. 1. The head 14 is substantially the same width as the length of the slot 10 so that said head may be turned longitudinally of the vertical member *ofathe frame, and inserted through said rectangular opening, after which the armis turhed so as to lie in a plane at right angles to the vertical member, and said head will hold said arm in this position and against any strain which tends to force the arm downward relative to the vertical member. It will readily be understood that this arm-11 my be turned in the opening in the vertical member and folded against said vertical member, as clearly shown in Fig. 5. Said frame at its upper end is formed with a second arm 15 which is similar in all respects to the arm 11. This arm 15 is provided with a T-shaped head 16 which bears against the outer face of the vertical memher 9. The arm 15 atits free end is forked to receive a barrel 17. This barrel may be made of wood or any other suitable li 'ht material, and as herein shown, is provided with a plurality of spaced collars 18, 18, and 19. The space between the collar is reduced so as to pass readily between the members of the fork in the upper arm 15 of the frame. The purpose of having aplurality'of spaced collars is to allow for a certain range of adjustment of the barrel relative to the valve disk. Said barrel is provided with parallel spaced arms 20 at ,its upper end. Between said arms is pivoted a cam lever 21 having a cam-shaped surface 22. Said barrel is formed with a central opening 23. A plunger 24 extends through the opening and projects from the lower end of the barrel. The opening through the barrel at the upper end is enlarged to form a pocket, and seat for a. spring 25. Said spring bears against a head 26 on the upper end of the plunger 24. This spring normally holds the plunger raised against the cam surface of the actuating lever 21.

In the operation of my device, the frame is positioned as shown in Fig. 1, and the forked end of the upper arm placed between two of the spaced collars so that the lower end of the barrel and plunger are directly vabove and adjacent the valvedislc. The lower arm of the frame is placed against the lower end of the spring of the valve. By the turning of the actuating lever 21, the plunger will be carried into contact with the valve disk and a further movement of the lever will cause the barrel to rise, carrying with it the frame and the lower arm 11, which in turn compresses the spring 7 and raises said spring away from the abutment or supporting pin 6 for the spring. This allows the supporting pin to be readily removed after which the actuating lever may be turned so as to allow the plunger to be withdrawn within the barrel, the spring released, and the valve can therefore, be readily removed for the purpose of cleaning or regrinding.

In Fig. t of the drawings, I have shown a slightly modified form of frame. In this view the vertical member 9 ofthe frame is provided with spaced ears 27 which ears are located a slight distance above the lower vertical member. The arm 11 is provided with an car 28 which extends between the ears :27 and is secured thereto by a pivot pin 29. The end of the arm 11' when the parts are unfoldedyrests againstthe lower end of the vertical member and limits the movement of the arm 11' relative to said vertical member.

From the above description it will be apparent that I have provided a valve remover having a frame which may be readily folded so that the parts may be easily stored and the operating barrel containing the plunger may also be removed from the frame. Also when the parts are assembled the plunger and the actuating member therefor are directly over the valve so that the thrust which compresses the spring valve s directly in line with the valve, and any tendency to tilt or bind the parts, or to cause the tool to slip from the valve disk will be avoided.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made, without departing from the spirit of the invention, as set forth in the appended claims.

, Having thus particularly described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a valve remover, the combination of a barrel, a plunger in said barrel, means for moving said plunger relative to said barrel, a frame includmg a vertical member, and folding arms carried thereby, one

of said arms being adapted to removably engage the barrel and the other arm being adapted to engage the valve spring.

2. In a valve remover, the combination of a barrel, a plunger in said barrel, a lever having a cam surface adapted to engage said plunger, a frame including a vertical member, and foldingarms attached thereto, one of said arms being adapted to removably engage the barrel, and the other arm being adapted to engage'the spring of the valve. 1

3. In a valve remover, the combination of a barrel having spaced collars, a plunger in said barrel, a spring for lifting said plunger, alever having a cam face for depressing said plunger, and a frame including a vertical member, and folding parallel arms at;

tached thereto, one of said arms being forked so as to receive .the valve stem and engage the valve spring, and the other arm being forked to engage between the spaced collars on said barrel.

4. In a valve remover, the combination of a barrel, a plunger in said barrel, a spring

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