US1381890A - Valve-puller - Google Patents

Description

R. w. BROUHARD AND w. H. DONALDSON.

VALVE FULLER.

APPLICATION FILED JULY 6,1920.

7 Patented June 14, 1921.

&\\\\\\\\\\\\\\\\\\\\\ UNITED STATES PATENT; OFFICE.

ROY W. BBOUBIARD AND WILLIAM H. DONALDSON, OF COLO, IOWA.

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Specification of Letters Patent.

Patented June 14, 1921.

T 0 all whom it may concern:

Be it known that we, ROY .wpBnounnm) and'lvrLmAiu H. DONALDSON, citizens of the United States, and residents of @010, in the county of Story and State of Iowa, have invented a certain new and useful Valve- Puller, of which the following is a'specification. a

The object of our invention is to provide a valve pulling tool particularly adapted for use with motors of the over head type.

With this and other objects in view our invention consists in the construction, arrangement and combination of the various parts of the device. whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in our claims and illustrated in the accompanying drawin s, in which;

figure 1 shows an elevation of a valve pulling tool embodying our invention.

Fig. 2 shows a similar view illustrating the use of the tool when installed on the I or the like 11, below which is a spring 12 bty which the valve is held normally seate which frequentl becomes necessary to. re-

move the valve or cleaning or grinding the valve or valve seat, and this is sometimes a difiicult matter especially where the valve is stuck. I Ordinarily the first movement of the removal orrahsing against the pressure of the spring 12, is acccm lished by inserting some instrument under the edge of the washer 11 and prying upwardly. f the spring is very strong or if the valve is stuck this prying operation is likely to result in bending the valve stem or otherwise injuring the parts.

The tool described herein is especially adapted for-raising such valves-without injur thereto, without waste of time.

. t may be' mentioned in. this connection that the removal of the valves is often a very slow process on account of the great care which is required.

With the tool under consideration the removal of the valve is a quick and easy process. The tool shown herein, comprises a shank 13, having a removable head 14, and the other end of the shank 13 has divergent, resilient arms 14, which terminate inwardly extending opposite-engaging fingers 15, the upper surfaces of which are substantially fiat and the lower surfacesof which are beveled as at-lG. I a

In the practical use of the tool shown herein the fingers 15 are slid 11' der the washer 11 from the side, or it this is difficult to do on account of the proximityof a part of the engine, the tool may be placed in proper position by first placing it in the position shown in Fig. 3, with one finger 15 below the washer 11 and with the other finger 15 just above the Washer lLand diametrically opposite from the first finger. The shank 1 3 is then swung from its inclined po sition shown in Fig. 3 toward vertical position illustrated by lines in Fig. 3, whereupon one 055 the arms 14 willbe sprung laterally until theupper-finger 15 clears the washer 11 whereupon the resiliency of the arms 14 will cause the last mentioned finger 15 to spring to position beneath the'washer 11.

There is loosely mounted on the shank 13 a tube 17 illustrated in Figs. 1 and 2 which serves as a hammer. After the tool has been installed in theposition shown in Fig. 2 it may be grasped at the lower portion by one hand and the tube 17 may be raised with a sharp blow against the head 14 and it Wlll be seen that if the valve is stuck it will be jerked loose irom its seated position with a movement which will cause no injury to the stem.

If the valve is not stuck the tool may be raised with a steadyupward pull. The ad vantages of such a tool will be largely seen .from the foregoing description. It is a very simple and inexpens ve construction and may be quickly and easily installed in position'for use and will save a great deal of time moving the valves to position where they are accessible. It makes it possible to loosen the valve which has been stuck without injury to the valve and to do so almost instantaneously.

in Fig. 4 we have showna modifiedform of our tool in which the shank 13 is provided I with three equidistantly spaced arms 14 instead of two.

Some changes might be made in the construction and arrangement of the tool shown herein without departing from the real purpose and spirit of the invention sought to be covered by this application and it is our purpose to cover by the claim of the application any modification in structure of use of mechanical equivalents which may be reasonably included within their scope.

We claim as our invention:

1. A tool of the kind described having a shank, a head on said shank, divergent resilient arms ,on said shank, terminating in inwardly inclined fingers, and a hammer member slidably mounted on said shank.

2. In a tool of the class described a shank having at one end diverging resilient arms,

' terminating in opposite inwardly extending vfingers, having flat surfaces arranged substantially horizontal on the upper side when the shank is upright, and having beveled surfaces on their lower side.

3. In a tool of the class described a shank having at one end diverging resilient arms,

terminating in opposite inwardly extending fingers, having flat surfaces arranged substantially horizontal when the shank is upright, on the upper side and having beveled surfaces on their lower sides, said tool having a detachable head and a hammer member slidably mounted onsaid shank.

4. In a tool of the class described a shank having at one end diverging resilient arms,

terminating in opposite inwardly extending fingers, having fiat surfaces arranged sub--

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