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Publication numberUS1409878 A
Publication typeGrant
Publication dateMar 14, 1922
Filing dateSep 14, 1920
Priority dateSep 14, 1920
Publication numberUS 1409878 A, US 1409878A, US-A-1409878, US1409878 A, US1409878A
InventorsLester Mainland Charles
Original AssigneeLester Mainland Charles
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Valve-lifter guide
US 1409878 A
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Description  (OCR text may contain errors)




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Specification of Letters Patent.

Patented Mar. 14, 192'.

Application filed September 14, 1920. Serial Nb. 419,281.

relation to a lifter guide," especially designed for use in connection with the tappet valves of an internal combustion engine.

The invention broadly contemplates a guide for reciprocating members, provided with means which improves the working and increases the life'of both the member and the guide.

Another obj ect of the invention is to provide an adjustable means for a guide which automatically compensatesfor wean on both the reciprocating member and the guide:

A more specific ob ect of the invention is to provide'in combination with the lifter guide of a valve, means which silences and .prevents rattling, due to vibration resulting from wear.

A further object in view resides in the provision of a silencing and wear compensating means of this character whic is removable whereby to admit of replacement or repair of the means when worn.

A; still further object of the'invention is to i parent from the following detailed descrip-' tion, reference is had to the accompanying drawings forming a part of this application, and in which: 7

Figure 1 is a diagrammatic fragmentary sectional view ofa tappet-valve, push rod,

lifter guide and cam, said lifter'guide being constructed in accordance with the inventit i1 is a horizontal sectional view reference, 10 designates a tappet valve hav ing the usual valve stem 11, the lower extremity of which is received by the push rod 12'which is bifurcated at its lower extremity as at 13 to provide a bearing for the roller 14. A cam shaft 15 of usual'constructioii provided with a cam 16 serves to intermitten'tly lift the valve.

ln'the usual-form of lifter guides, it hasbeen found thatthe push rod and the guide due to constant operation become worn after continued use, to such an extent that lost motion results in rattling, In order to compensate for this wear and silence'the operation of the tappet valve, means is provided for automatically taking up the wear. Inthe improved form of lifter guide 17, the same is recessed as at 18, and a removable section 19, is arranged in said recess. able section and the lifter guide arep'rovitied with registering exterior grooves'20-20 and grooves and embraces both the removable section and the guide atthis point. If desired, the extremities of the ring may be turned in as at 22 to bite into and grip either the guide or the removable section.

In positioning the guide on the'push rod, it is desirable to arrange the recess and .removable section on the side onwhich the cam 16 strikes the roller, as it has been found that the wear usually occurs on this side.

By this arrangement it will be seen that the resilient ring will exert a tension to normally effect the contraction of the guide and section 18 on the push rod for the purpose of automatically taking up wear. When the-push rod, guide and its removable section have becomeworn to such an extent that the confronting faces of the removable section and the guide abut, the removable section may be taken off and its confronting. face round to admit of its further use.

From the foregoing it will be seen that asimple and effective means for overcoming the disadvantages of the present type of guide is provided, but it is understood that no limitation is necessarily made to the precise structurai details, as the right to embodiments other than those actually illustrated herein is reserved to the fuil extent indicated by the general meaning of the terms iii-which claims areexpressed and by variations in the phrasin of the same.

Having thus described my invention, It

The removv a split resilient ring 21 is arranged in said new and desire to L sleet:

able sect-i011.

2. valve lii guide, comprising a tubular member liming an axial recess therein, s section arranged in said recess, and resilienl; means embracing?" and searching respectively "with lhe lu uler member and.

secure by Lesguide member and removguide for push reds comprising effecting relative axial messes said section for normally pressing said seclion against the valve lifter whereby to compenssle for wear on the valve lifter, the section, and said guide.

3. The comhinatien with e velve lifter inch-of a guide therefor, comprising :i tubuler neinber having an axial recess, a movsble ection mounted. in said recess, and resilient means for removsbly retaining said sect-ion in saidrecess and eiiecting movement ef the same E0 exert a pressure on the lifter rod whereby e0 compense'he for wear on said elements,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4361120 *May 2, 1980Nov 30, 1982Sealed Power CorporationRoller tappet and method of making same
US5010856 *Oct 15, 1990Apr 30, 1991Ford Motor CompanyEngine finger follower type rocker arm assembly
US6871622Oct 18, 2002Mar 29, 2005Maclean-Fogg CompanyLeakdown plunger
US7028654Oct 18, 2002Apr 18, 2006The Maclean-Fogg CompanyMetering socket
US7128034Oct 18, 2002Oct 31, 2006Maclean-Fogg CompanyValve lifter body
US7191745Oct 18, 2002Mar 20, 2007Maclean-Fogg CompanyValve operating assembly
US7273026Oct 18, 2002Sep 25, 2007Maclean-Fogg CompanyRoller follower body
US7281329Feb 2, 2004Oct 16, 2007Maclean-Fogg CompanyMethod for fabricating a roller follower assembly
US7284520Mar 8, 2007Oct 23, 2007Maclean-Fogg CompanyValve lifter body and method of manufacture
U.S. Classification384/28, 123/90.48, 123/90.49
International ClassificationF01L1/14
Cooperative ClassificationF01L1/14
European ClassificationF01L1/14