US854860A - Tool for removing engine-valves. - Google Patents

Description

No. 854,860. PATENTED MAY 2a, 1907. 0. F. WBBBER.

TOOL FOR REMOVING ENGINE VALVES. nrmouxou FILED FEB. 1, 1907. V

WITNESSES v I INVE'ENTEQE m: NORRIS PETERS m, summon. D c. n w

' EQNEY CHRISTIAN F. WEEBER, OF ALBANY, NEW YORK.

TOOL FOR REMOVING ENGINE-VALVES.

Specification of Letters Patent.

Patented May 28, 1907.

Application filed February 1,1907. Serial No- 355,274:-

ctZZ whont it nary concern:

Be it known that I, CHRISTIAN F. WEEBER, a citizen of the United States, residing at Albany, in the county of Albany and State of New York, have invented a new and useful Tool for Removing Engine-Valves and the Like, of which the following is a specification.

My invention relates to improvements in tools for removing engine valves which are retained on their seat by springs keyed to the valve stem, and the objects of my improvements, are, first, to provide a means for compressing said spring so that the key holding ,said spring, and which is ordinarily held in place by the pressure thereof, may be easily relever to comprei of the key.

*moved% This, ordinarily, is a difficult operation' g iii some instances requiring two persons to accomplish it. This, owing to the fact that the spring on the valve stem is in strong compression, a there is no point handy as a fulcrum or which to support a said-spring for the removal Another obj so ,of my invention is to hold the engine valve upoii s seat, 'whilegfthe spring is being compressed as aforesaid. Under the usual conditions, when one seeks to compress the spring of said engine valve, the valve itselflifts from its seat, making it impossible to re the key retaining the spring. Bythemse-.of,:the tool hereinafter described "the valve'i "heldnpongilts seat at the same time that thesjiring is compressed, thus avoiding thetdifiiculty described.

Anotherobje'ct of my invention is to pro.- vide a means to hold the spring many state of compression desired without maintaining a continuous pressure by hand. g

f The tool .heigeinaftei""described has also other evident uses and applications. It may be used as a lever in many'positions where a fulcrum for the. lever is not ordinarily obtainable. For example, it may be used for removing or replacing pneumatic tires.

I attain these objegts by the mechanism illustrated'in the accompanying drawing in which,

Figure l showg-the tool as applied for the removal of an engine valve. Fig. 2 shows a detail of a portion of said tool giving an alternate construe o -efer to similar parts.

'13 shows the cylinder rtionl-t hereof cut away of an engine wi vs, (9) resting upp nits so as to show the val seat.

12 shows the valve stem with a slot therein in which a key is placed in the well known and familiar construction; said key retaining a washer (11) which retains the valve spring (10) in compression. It is evident that to remove the key'from the slot (12) it is necessary to compress said spring and at the same time prevent the valve (9) from leaving its .seat. Numerals 222 show a portion of the tool consisting of a bar having one end thereof bent into the form of a hook and adapted to be placed upon the engine valve to hold it upon its seat, as shown. Pivoted upon the straight portion of said bar (2) is a lever (78) one end thereof (8) being forked and adapted to engage the spring washer (11). 7 is the handle of the lever by means of which pressure is exerted on the spring and (4) shows a removable pin by which the lever is pivoted upon the bar (2).

A series of holes (3) are drilled in the bar so that the position of the lever upon said bar may be changed by withdrawing the pin (4) and inserting it in another hole; thus adapting the position to the lever to the length of the valve stem. Said lever has attached near the fulcrum thereof a ratchet member (6)5 Said bar is provided wit a sliding block (5) free to move longitudinally upon said bar and engage the teeth of the ratchet member (6). It is evident that when the tool is used in the position shown, and is applied to an engine valve and its accompanying spring, that when the lever (7) is pressed down and the spring is compressed by the forked end thereof (8), the ratchet member attached to said lever moves farther from the bar (2) and allows the sliding block (5)-to descend and engage the teeth of said. ratchet; thus, holding the lever in any desired position and maintaining the spring in compression without further efl ort or attention on the part of the operator. It is evident also that,under these conditions a key may be removed from or replaced in the slot (12) at the convenience of the operator.

Referring to Fig. 2-: This figure shows an alternate construction in which the ratchet teeth arepl aced on the sliding block (5) which iswed e-shaped. of the lever pivoted movabl in (4). "6.51s a pawl extending up from th ,its end adapted to engage the teeth sliding block (5). It is evident that other equivalent constructions may be used. For example, the ratchet 1,05 7 shows the handle the bar (2) by the re- IIO tooth may ho out upon the inn (2), and tho pawl pivoto l upon tho lovl'i' so as to vng'ago tho suoi'vossivo tooth ol tho ratuhvt.

I an] RUWLIU that prior to my invontion othor' tools havo hoon nsod l'or tho pni'posv ol' (-onipl'ossing tho spi'lngs ol onginn valvl-s, and

I do not claim HlHlI a tool ln-oadly.

laving now dosvi'ilwd my invontion, what l claim is,

1. ln a lnavhino ol' tlw cliai'ai-tor dusoi'ilmd, a lHLi' having one and tholvo'l lwnt to tor-1n a hook, at lovor pivoted on. tho straight portion of said bar, and a l lo('l\' sliding on said hal' adapted to lo('l\' said lover so as to withsland pressure exerted on onev ond thorvol':

2. in a tool ol the (llztl'itflttfl' desvrihod, a liar having; 01w ond thurooi bout to form a hook, a lover pivoted on the straight. portion of said bin", said lever having a ratchet than on, and a block sliding on said lH-LI' adapted to engage the teeth of said ratchet.

3. In a tool of the (diameter du-svrilmd, a inn having one end thorool hunt to lol'ni a hook, a ltVUl' pivotod on tho straight portion ol' said liar, said l(\ (l having a l'atl'hvt thvl'w on and l lovl sliding on said hai' adaplvd lo ongagv tho tooth ol'said 1'al(-lwt,a||d a nnans ol' vhanging tho position ol lhv pivot of said luvor longitudinally along said har.

l. [n a tool ol' tho -lntra0tor dosi'lihod, in onihimttion, a liar having ono 0nd lhol'vol' hunt to l'oi'ln a hook adapted to ongago tho top of an ongl'inv \:Ll'\(, a llVOl' 'pl'tottd on thv straight portion of said lHll' said lovoi' havinga i'atv-hot inoinhor in nu' its l'nlm'lnn and having ono 0nd adaptml to (engage tho spring; of an vngino valve, a Mock sliding; upon said liar and adapted to vngago tlntooth ol said rah-lint, a nwans ol vhanging' the position ol' the pivot ol' said l(\'tl' longiludinallv along said lHtIZ (IlHlS'llAN l, WlClCBlCli.

Witnesses WILLIAM W. PENNICK, MAnIon ll. FISHER.

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