US1838598A - Spring contracting tool - Google Patents

Description

Dec. 29, 1931. .F. wElcK 1,838,598

SPRING CONTRACTING TOOL Filed Aug. 13, 1950 Patented Dec. 29, 1931 UNITED STATES FREDERICK WEICK, OF FALLS GITY, NEBRASKA SPRING CONTRACTING TOOL Application filed August 13, 1930. Serial No. 475,023.

This invention relates to a tool designed primarily for contracting the springs of poppet valves such as used with internal combustion engines.

In some types of automobiles the valve springs are so seated at their ends that it be comes extremely difficult to place a tool in engagement with the ends of the spring for the purpose of contracting said spring to permit removal of the valve and its stein.

It is an object of the present invention to provide a tool which can be forced'into engagement with convolutions of a spring near the ends thereof whereby, by the proper manipulation of the tool, that portion of the spring between the engaged convolutions can be compressed with the result that the valve can be removed readily.

Another object is to provide a tool of this character which is simple and inexpensive and has combined with it a means whereby the tool can be used as a lever for lifting the spring a considerable distance following the compression thereof.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of'the invention, may be made within thescope of what is claimed, without departing from the spirit of the invention. 7

In the accompanying drawings, the preferred form of the invention has been shown.

In said drawings:

Figure 1 is a side elevation showing the tool engaging a spring and holding its inter-- mediate portion under compression.

Figure 2 is a plan view of the tool.

Figure 3 is a section through the tool on line 3'3, Figure 1.

Referring to the figures by characters of reference, 1 and 2 designate handles which are pivotally connected at 3. At the free end of one of these handles is an eye 4 in which is mounted a link 5 adapted to move into engagement with handle 2 to prevent the crossed pivotally connected handles, arms inhandles from moving apart while a spring is being held under compression. 7

The handle 2 has an arm 6 extending from the pivoted end thereof and another arm 7 is extended from the pivoted end of the handle '55 1. The handles close at their pivoted ends and arm 7 diverges from arm 6 as shown. Each of these arms is provided at its free end with a fork 8 the inner edge portion of which is shaped to provide a recess 9 leading to a relatively thin edge 10. The forks 8 are arranged with their recessed faces toward each other.

Loosely mounted on the arm 6 is an eye 11 provided at one end of a metal strip 12 constituting a prop, there being'a notch 13 in the free end of the prop providing su'pport-engaging prongs as shown. 7

When it is desired to compress a valve spring the ends of which are not readily accessible for engagement by a tool of ordinary construction, the present device is used to advantage by swinging the arms 6 and 7 apart and forcing the forks 8 into engagement with the convolutions of the spring S close to the ends of said spring. This insertion is facili- 'tated by providing the thin edges 10. After the tool has been properly engaged the handles l and 2 are drawn toward each other. This causes the forks to compress that por- 30 tion of the spring located therebetween and as the spring is thereby shortened throughout its length the valve or other object controlled by the spring will thus be loosened and can be removed readily.

. The spring can be held under compression by placing link 5 in engagement with handle 2. Should it be desired to use the tool asa lever for lifting the compressed spring, the prop 12 can be placed in engagement with an adjacent portion of the engine structure.

' What is claimed is:

1. A tool of the class described including crossed pivotally connected handles, arms integral therewith, a fork at the free end of each arm, each of the forks having a reduced portion constituting a seat for a spring, and a prop loosely engaging one of the arms.

2.v A tool of the class described including tegral therewith, forks at the free ends of the arms for insertion between separate convolutions of a spring, a prop loosely mounted on one of the arms and notched to provide support-engaging prongs, and means for detachably connecting the handles at one end to hold the forks against movement from each other While supported by the prop.

In testimony that I claim the foregoing as w my own, I have hereto aflixed my signature.

FREDERICK WEICK.

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