US1465843A - Valve-spring lifter - Google Patents

Description

Aug. 21, 1923.

H. A. COOPER VALVE SPRING LIFTER Filed Avril 10. 1922 .H. O 0 070a?" INVENTOR ATTORNEY WITNSS Patented Aug. 21, 1923.

UNITED STATES HENRY a. ooornn, or WEST UNION, onro.

VALVE-SPRING LIFTER.

Application filed April 10,

T a all whom it may concern Be it known that I, HEN Y A. COOPER, a citizen of the United States, residing at West. Union, in the county of Adams and State of Ohio, have invented new and useful Improvements in Valvearing Lifters, of which the following is a specification.

My present invention has reference to a valve spring lifter.

hly primary object is to produce a device for lifting the valve springs of automobiles which may be supported from either the manifold or the engine block, and adjustable to engage springs of varying lengths, and which. when operated, to compress the spring will be selfsustaining in such position so that both hands of the operator are free to withdraw the pin from the valve stem and to remove the valve from its seat.

A further object is to produce a valve spring lifter for internal combustion motors that includes a yoke for arrangement over the manifold or for engagement with the engine block, said yoke having swivelly connected thereto a lever which in turn has swivelly connected therewith the valve engaging fork, and whereby, when the lever is swung upwardly with respect to the yoke, the fork will also be moved in the direction of the yoke and the spring compressed, the connection of the lever with the yoke being such as to hold the fork in raised position, so that further attention of. the device by the operator will not be required.

It is a still further object of the invention to produce a spring compressor for the purpose set forth which is characteristic of simplicity, combined with cheapness in manufacture and efiiciency in operation.

The drawings, which accompany and which form part of this specification, illustrate therein a satisfactory embodiment of the improvement reduced to practice, and wherein:

Figure 1 is a view illustrating the application of the improvement, the device being supported from the manifold of the engine, and the spring being compressed.

Figure 2 is a sectional View of the device per so, on the line 22 of Figure 1, showing the arrangement of parts before compressing the spring.

Figure 3 is a view showing the yoke of the improvement attached to the engine block. the latter being in section.

Referring now to the drawing in detail, the

1922. Serial No. 551,099..

numeral 1 designates the cross sectionally U-shaped supporting element or yoke of the improvement. As disclosed in Figure 1 of the drawing, the yoke 1 is shown applied to the manifold 2 of an internal combustion engine 3. while in Figure 3 I have shown the yoke attached directly to the engine block. It is, however, important that the support 1 be so shaped as to engage the manifold, as by such construction the necessity of removing the engine manifold in compressing the valve springs will be obvi ated.

The yoke l is preferably gradually decreased in width from its outer to its inner end. the said inner end or arm of the yoke having its outer face formed with an extension providing a lip 2. and the widened or outer arm of the yoke being slitted at points adjacent to its edges and the metal bounded by the slits bent inwardly to form the same with a tongue 3. Both the lip and tongue are provided for engaging parts of the man ifold or parts of the engine block.

For distinction, the outer and widened arm of the yoke is indicated by the numeral 4, the same having thereon a pair of spaced outwardly extending lugs 5. and between these lugs there is arranged a block 6 pro vided at its ends with trunnions 7 that pass through aligning openings in the lugs 5. Pivotally secured, as at R to the outer face of the block 6 there is one end of a lever 9, The lever 9 has swiveled thereon, at a point a suitable distance from its pivot R, an outwardly extending block i l. The block has an opening therelhrongh. and in this opening there is received the threaded end of a rod 11. The rod 11 has its outer or lower end rounded. as at 12 and its extremity widened. The widened portion 13 is cut away from its outer end to provide the said rod with a fork 14-, the inner edge of the fork being rounded. and the upper surface thereof being concaved. The fork, of course, is designed to be arranged over the valve rod 1.5 to engage the springs l6 thereon. The threaded end of the rod. ll is engaged by a winged nut 17 which, of course, contacts with the block 10. By adjusting the nut the forked end of the rod may be properly regulated with respect to the spring it is to engage. vVhen brought to such position, the lever 9 is swung upwardly on its pivotal connection with the block 8. thus raising the forked rod 11 and compressing the spring 16 to permit of the holdingpin thereof being removed from the valve rod 15. The lever, when swung to its upper position holds the forked rod 11 thereon against movement, so that the mechanic, after once compressing the valve need pay no further attention to the device.

It is thought that the foregoing description, when taken in connection with the drawing; will fully set forth the constructi'on, operation and advantages of the improvement to those skilled in the artto which such inventions relate, it being understood, however, that the illustrated description refers only to a Satisfactory embodiment of the improvement as it now appears to me and that I am entitled to all such changes therefrom as fall within the Scope of what I claim. For instance, the employment of the block on the yoke and the block on the lever are not essential features of the construction, as the lever may be swivelly connected to the yoke in other means and the forked rod 12 may likewise be swivelly connected to the rod by other means.

Having described the invention, I claim 2-- l. .l n a valve spring compressor, as herein described, a yoke having, an inwardly directed tongue on its outer arm and an out wardly directed lip on its inner arm, a lever swivelly connected to the outer arm, and a forked rodadjustably associated with the lever and swivelly secured thereon.

In a valve spring compressor, as herein described, a yoke support, a block pivotally associated therewith, a lever pivoted to the block, a block pivoted to thelever and extending outwardly therefrom, a forked and threaded rod passing through the last mentioned block, and a nut screwed on the rod and contacting the block. V

In testimony whereof I aflix my signature.

HENRY A. COOPER.

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