US1322433A

US1322433A - John wallace harsley and milton philip apgar

Info

Publication number: US1322433A
Authority: US
Publication date: 1919-11-18
Anticipated expiration: 1936-11-18

Description

I. W. HARSLEY ND M. P. APGAR.

VALVE LIFT.

APPLlcATloN msn APR. 22. 1919.

1,322,433. Patented Nov. 18, 1919.

l Anofmfrs UNITED srA'rEs PATENT OEEIOE.

JOI-IN WALLACE HARSLEY AND MILTON PHILIP APGAR, 0F NEW YORK, N. Y.

VALVE-LIFTER.

Application Iled April 22,

To all whom t may concern:

Be it known that we, JOHN W. HARSLEY and MII/ron7 I). Areas, citizens of the United States, and residen-ts of the city of New York, borough of Manhattan, county of New York, and State of New York, have invented a new and Improved Valve-Lifter, of which the following is a full, clear, and exact description.

This invention relates to valve lifters or valve jacks. Particularly, this invention relates to tools for removing tappet valves from internal combustion engines.

A particular object of the invention is to disclose the design of a valve lifter or valve tool which may be` quickly applied to the stein of a tappet valve and to the motor base for lifting the valve tappet spring out of engagement with the valve parts in order that the valve may be disassembled for removal from the internal combustion engine.

Another object of the invention is to provide a valve lifting tool fitted with a reversible handle such that the tool may be applied to engines where the valves are difficult to get to, the reversible handle being employed to render the parts more accessible.

A further object of the invention resides in a removable retaining hook means cooprating with the valve lifter to confine said tool in service position.

With the above and other objects in view, the invention has relation to a certain combination and arrangement of parts, an eziample of which is described in the following specification, pointed out in the appended claims, and illustrated in the accompanying drawings, wherein:

Figure l illustrates the valve lifter tool mounted in operative position on the side of an internal combustion engine.

Fig. 2 is a View taken upon the line 2 2 of Fig. l.

Fig. 3 shows a front view of the lifter applied to the spring seat washer of a valve tappet assembly.

Fig. A shows a perspective view of a certain retaining hook removed from a post member.

Referring more in particular to the drawings, the reference A points out a cylinder of an internal combustion motor which is fitted with a tappet valve. The valve assembly comprises the stein B upon which is confined a compression spring C seated upon a Specification of Letters Patent.

Patented Nov. 1S, 1919.`

1919. Serial No. 291,899.

washer D, and the washer D being held in position by a pin E. Normally the spring seat washer D rests uponthe pin E under the pressure of the spring C. A valve tap pet comprising what is known as a cam fol-r lower F fitted with a tappet head G is shown in operative position adapted to reciprocate the valve stem B.

It is often required to dismantle the valve assembly and in so doing a tool is necessarily required to lift the spring seat washe1 upwardly against the pressure of the spring` C so that the retaining means such as E may be removed.

This tool essentially comprises a handle and avalve lifting fork fitted with accessory parts to carry out the aforesaid purpose. A pair of bars :2 are fixed in spaced relation and have outwardly curved eXtre1nities 3. A lifting post 4c is pivotally conlined between the space bars upon a screw or bolt 5, and this bar is provided with a.

number of holes such that the bars may be adjusted upwardly or downwardly thereonr for the purpose of obtaining the appropriate working height of the bars or lifting members 2. The upper edge of the lifting bars are notched as designated by the reference character 6. A pawl 7 is pivotally carried upon the upper end of the lifting post and has its lower free end shaped to engage the notches of the lifting members. The forward extremities of the lifting members are spread out in the form of a fork and adapted to encompass the spring seating washer of the valve assembly. Each forward extremity of the lifting members or lifting bars is provided with an integrally formed lug 9, such that the lugs will be brought into position underneath the seat washer as shown in Fig. 3.

A handle l0 is pivotally confined between the rear ends of the lifting bars upon a bolt or screw 1l. This handle is provided with a forward edge 13 which lies in contact with a bolt 12. A lower edge 14 is provided on a handle and may be brought into engagement with the bolt l2 by removing the bolt ll and reversing the position of the handle. Thus the valve lifter can' be used in angular position as shown on the drawings for getting into places where a short handle would be required. Where there is sufiicient room for the handle to be used in eX tended position the handle may be reversed which will bring the lower edge into lifting engagement with the bolt 12, and cause the handle to assume a horizontal position.

A retaining hook comprising members 1G and 17 is connected with the lifting post and adapted to be hooked around the valve tappet. The member 17 is provided with a hook 1S which is passed through a hole 19 formed in the lifting post. The head is passed through the hole and the member 17 reversed which locks the device in the lifting post. The hook 16 is screw-threaded up into a tapped bore formed in the member 17. The outer end of the hook 16 is turned in the form of a hook and adapted to lie in gripping position with the valve tappet.

The device will be applied to the tappet assembly as shown in the drawings and downward pressure brought to bear upon the handle. {This lifts the. spring seat washer off of the pin E which readily permits the mechanic to dismantle the valve. In the same way the valve is replaced in the engine. The members 16 and 17 of the retaining hook may be lengthened or shortened up by screw-threading the member 16 inwardly or outwardly within the meinber 17. Thus an appropriate operating position can be secured for 'the lifting post. Then the handle is pushed downwardly against the compression of the spring (l the pawl 7 will be engaged in the notched faces of the lifting bars to hold the lifting bars in upward position against the spring. rThis permits the mechanic using the tool to have both hands free for dismantling the valve.

This form of valve lifter or valve jack will make for the ease and convenience in overhauling automobile engines. The tool is universal in character and will be found to adapt itself to a great variety of makes and models of engines.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent is:

1. In a valve lifter tool, comprising in tombination; a pair of spaced lifting bars, a handle carried therebetween, a lifting post confined between the bars, and a retaining hook mounted on the lifting post.

2.111 a valve lifter tool, comprising in combination; a pair of spaced lifting bars, a handle carried therebetween, a lifting post confined between the bars, a retaining hook mounted on the lifting bars, and lugs formed on the lifting bars to engage a spring seat washer of the valve assembly to be dismantled.

neaafies 3. A valve lifter, comprising in combination; a pair of spaced lifter bars, a handle pivotally mounted therebetween with a forward edge, a bolt passed through the lifting bars and engaged by the forward edge of the handle, a lifting post pivotally confined between the lifting bars, and a retaining hook pivotally attached to the lifting post.

l, A valve lifting tool, comprising in combination; a pair of spaced lifting bars, one end of said bars curved outwardly to form areceiving fork to encompass a valve, a handle employed in connection with the lifting bars, a lifting post pivotally attached to the lifting bars, a pawl carried by the lifting post for holding the lifting bars in upwardly supporting relation, a retaining hook member, and a head formed on the retaining hook member adapted to be passed through a bore in the lifting post for confining the retaining hook in position.

ln a valve lifter tool, a pair of spaced lifting bars, a handle carried therebetween, said handle having a beveled extremity, a bolt passed through the spaced lifting bars and engaged by the beveled extremity of the handle such that the handle may be reversed in position with the spaced lifting bars to change the angular relation. between said handle and lifting bars, a lifting post confined between the bars, and a retaining hook mounted on the lifting post.

6. In a valve lifter tool, a pair of spaced lifting bars, a handle carried therebetween, said handle having a beveled extremity, a bolt passed through thespaced lifting bars and engaged by the beveled extremity of the handle such that the handle may be reversed in position with the-spaced lifting bars to change the angular relation between said handle and lifting bars, a lifting post confined between the bars, and a retaining hook mounted on the lifting post, and a pawl associated with the lifting post and lifting bars to hold the lifting bar in set position. T. In a valve lifter tool, a notched lifting bar, a lifting post pivotally mounted on the lifting bar, a pawl pivoted on the lifting post to engage the notched lifting bar, a handle carried on the lifting bar, and an adjustable retaining hook associa-ted with the lifting post to constrain said post in proper vertically alined relation to a valve to be lifted. Y

JOHN WALLACE HARSLEY. MILTGN PHILIP APGAR.