US1808064A - Valve lifter - Google Patents

Description

June 2, 1931.

W. J. PEARMAIN ET AL VALVE LIFTER Filed Feb. 15. 1929 Patented June 2, 1931 UNITED STATES PATENT ori ce WILLIAM J'. PEARMAIN AND JAMES S. ALLAN, OF RACINE, WISCONSIN, ASSIGNORS T0 REX ACCESSORIES COMPANY, OF RACINE, WISCONSIN, A CORPORATION OF HIS- 1' CONSIN VALVE LIFTER.

Application filed February 15, 1929. Serial No. 340,101.

It frequently happens that the valve stems of an automobile are inaccessible, for example, where they are located back of the intake manifold or the carburetor. To get at them frequently requires taking 01f the carburetor or intake manifold, or both, with a consequent loss of time and effort.

An object of this invention is to provide a valve lifter which is adapted to be used both on valve stems which are accessible and those which are inaccessible to the usual forms of straight rigid valve lifters.

Another object is to provide means whereby a single valve lifter is adapted to be used with different sized valve stems and valve tappets.

These and other objects as will hereinafter appear are accomplished by this invention which is fully described in the following specification, and shown in the accompanying drawings, in which Figure 1 is a. longitudinal section through a valve lifter in operation on a valve stem and embodying the invention, part of this valve lifter being shown in side elevation;

Fig. 2 is a partial section on the line 2 of Fig. 1 showing the fingers of the valve lifter in three adjusted positions; and

Fig. 3 is a. partial side elevation of the device in closed position.

The embodiment illustrated comp-rises a valve lifter comprising two lever members 10 and 11. preferably pressed from sheet steel, and hingedly connected by means of a pin 12.

Bell cranks 13 and 14 are pivotally connected by means of pins 15 and 16 to the members 10 and 11 respectively. An arm. of the bell crank 13 is connected by means of a rivet 17 with a link 18, the opposite end of the link connected by means of a rivet 19 with the lever member 11. Likewise an arm of the bell crank 14: connects through a rivet 20 with a link 21, the opposite end of which connects through a rivet 22 with the lever member 10.

The links 18 and 21 are crosses, the distance between the rivets 19 and 22 being substantially the same as that between the rivets 15 and 17 on the one hand, and the rivets ends and reduced shouldered offset portions at their inner ends, which are adapted to receive pressed sheet metal fingers 25 and,

26 which lie between small metal washers 27, the end of pin 23 being riveted over to retain them in place. v q 7 Thus it will be seen that the fingers 25 and 26 are rotatable about the axes of the pins 23 and 2 1 to various positions as shown in full and dotted lines. in Fig. 2. These fingers may be so mounted as to turn upon the pins 23 or, if desired, they may be rigidly secured to the pins which in turn are rotatable within the bell cranks. The fingers are cut out as at 26 so as to straddle either the valve stem A or the valve tappet B, as shown in Fig. 1, Spring metal clips 28 pro vided with different sized openings 28 are provided which are adapted to be slid over the outer ends of fingers 25 and 26 so as to adapt them to diiferent sized valve stems and valve tappets. i

When in use the tool is closed, as shown in Fig. 3, and, if desired, one or both of the fingers 25, 26 may be equipped with a spring clip 28. The fingers are then placed in alignment and inserted over the valve tappetrB and under the washer C, which is shown as slightly cup-shaped so as to retain a locking pin D, the washer 0 being normally held down over the pin D by means of a valve is pivotally mounted on the member 11 at 33,

the pawl 32 being normally drawn forward by means of a spring 34. To release this pawl, the operator presses down on the outer end of the spring 32, thereby further tensioning the spring 34. V

Ordinarily the tool is used, asshown in Fig. 1, and in full lines in Fig. 2, the fingers being substantially in alignment with the lever members. For certain inaccessible valve stems the fingers may be turned to one side or the other, as shown in dotted lines in Fig. 2, at any desired angle to the lever members, which will permit the tool to be used to the best advantage.

Thus it will be seen that a very simple and useful valve lifting tool has been devised, and one which at the same time is very simple and economical to manufacture.

WVhile we have shown but a single embodiment of our invention, it is to be understood that it is capable of many modifications. Changes, therefore, in'the construction and arrangement may be made which do not depart from the spirit and scope of our invention as disclosed by the appended claims.

e claim:

' 1. A valve-spring-lifting tool comprising two lever members pivotally connected, bell cranks pivotally connected to the ends of said members, means for maintaining said bell cranks substantially in parallelism, and finger members pivotally mounted on said bell cranks.

2. A valve-springlifting tool comprising two lever members pivotally connected, bell cranks pivotally connected to the ends of said members, means for maintaining said bell cranks substantially in parallelism, and

- finger members pivotally mounted on said bell cranks to swing about coincident axes.

3. A valve-springlifting tool. comprising two lever members movable with respect to each other, means for locking the same in various adjusted positions, fingers pivotally mounted on said members and having jaws adapted to straddle the valve stem and valve tappet, and sheet metal clips adapted to slip over said jaws and having bent back portions adapted to grip said jaws to retain the clips thereon. p

In testimony whereof, we have hereunto set our hands and afixed our seals this 11th day of February, 1928. 7

WILLIAM J PEARMAIN. JAMES S. ALLAN.

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