US1261006A - Wrench. - Google Patents

Description

A. H'. BARTELT.

WRENCH.

APPLICATION FILED AUG. I3. i917.

Lm. melma Apr. 2,1918.

lvvverrfnv@ Qua, H. @Meer nnrrn ARTHUR n. ranfrnnr, or MrLwAUKEn, wisconsin.

WRENCH.

ree- Leos j To all whom t may concern.'

Be it llznown that I, ARTHURAH. Barrena?, a citizen ofthe United States, and `resident of Milwaukee, in the county of Milwaukee and State of `".Viscolisin, have invented new `and vuseful Improvf-nnents in 2ldlrenches, of which the followingis a description, rererence being had to the accompanying drawina's, which are a part of this specification.

The invention relates tov wrenches and i more particularly to a wrench for use in making` the adj ustmcnt'of an ordinary form of tappet valve.

The ordinary form of tappet Vvalve which is frequently used` in automobile engines consists of the valve and a cam operated tappet device consisting of a main body portion and an adjusting `screw which is secured in adjusted` position with respect Vto the main portion by a lock nut. In making the adjustment 0fV thistype of valve it is necessary to loosen thelocl nut and then turn the adjusting screw to proper position and'holdboth Vit and the main body portion of the tappetv device against movement while theV lool; nut is being tightened up. Fon merly ithas been necessary to employ two operators to aecomplishthe adjustment, be-

causejof the .two `parts to beA heldand the" lock nut to be moved and toobvrate this difficulty I haveprovided a wrench whereby the` adjustment of. the falve maybe accomplished easily and quickly by one man as the wrench held in one hand, holds the main `body of the Atappet device and the adjusting screw in adjustedposition while the operator tightens upon the lock nut with a. wrench held in theV other hand. j l

The invention `further consists in the several features hereinafter set forth. j

In the drawings:

Figure 1 is aperspective view of the del vice embodying the invention together with a viewrof the valve, parts being; broken away and parts being` shown in section;

Fig. 2 is a side View of the device, parts being shown in section;

Fig. 3 is a plan view of the device embodying the 4invention.`

In Figs. 1 and 2 I have illustrated `a common form of tappet valve in connection with which my wrench is to be used for adjusting the valve. This consists of a valve member having a head 11 and stem 5, a bearing sleeve 6, a tappet member 7 slidably and rotatably mounted in said sleeve and carry i Specification of Letters Patent.

LPatented Apr. 2, 191 S.

Application filed August 13, 1917. Serial No. 185,914.

. ingl a round flat head S which contacts with a cam 9 on the valve shaft 10, an ad]listing` screw 11 having;l threaded engagement with the upper end of the member 7 and a nut 121er locking the screw in adjusted position, the upper end of the member 7 alo having' flat faces 13 fol-receiving; a wrench to hold said member 7 against turning movement when the valve is being' adjusted. Tappet valves of this kind are set so that there will be a slight clearance between the end of the stem 5 and the head of the screw 11 when the lowest portion ofthe cam 9 is in contact with the head S. Heretofore, it has been necessary for two persons to make the adjustment `each person havinga wrench, one to engage the flat faces 13 of thc member 7 and the other to engage the` head of the screw`11 and then one of the persons uses another wrench to turn. the loclr nut `12 to secure the parts in adjusted position. lith the present device one person with one hand wrench 18,V which holds the screw 11, by

means of screw bolts 19 which pass through threadedapertures 2O in the handle through apertures 20 in the wrench 17 and carry clamping' nuts 21 and 22 for holdingV the wrench 17 clamped between them. Thilo for any. given malte of valve it will be understood that this adjustable connection might not be necessary however to permit the tool to be used on different makes of valve it is necessary to vary the distance between the wrenches 17 and 18 as the distance between the top of the tappet member 7 and the adjusting' screw 11 varies.

The wrench 18 is for engaging the head of the screw 11 and since the faces of the polygonal head of the screw will'not always lie in the same place with the faces 13 on the member 7 and since the relative sizes of these surfaces to be engaged dilfer it is necessary to provide an adjustable connection between this wrench and wrench 17. This adjustable connection is formed by a bolt 23 having a squared portion 24 slidably wrench 15 to tighten the nut 12 to secure the mounted in a transverse slot 25 in the handle 16, 'an adjustable clamping member or nut 26 mounted on the bolt, the shank 27 of the wrench having a longitudinally eX- tending slot 2S therein for receivin the bolt 23, the wrench being held at di erent positions of angular adjustment and different distances with respect to the handle 16 by moving the bolt 23 in the slot 25 and the wrench 18 with respect to said bolt and securing it in adjusted position between the handle and the nut 26. The slot 28 is open so that the wrench may be easily removed and turned over to increase the radius of turning of the wrench.

With this construction the operator adjusts the wrenches 17 and 18 at the proper distance with respect to each other to it the i.: particular make of valve so that the wrench 17 will lie in the vplane of the faces 13 on the member 7 when the wrench 18 lies in the plane of the head of the screw 11. For a given make of valve this adjustment need only be made once and of course the wrench 17 and handle 16 might be made integral to space the wrench 18 at a liXed distance from the Wrench 17 for any given make of valve. The wrench 18 is then adjusted so as to properly engage the head of the screw 11 by loosening up the nut 26 and moving the wrench with respect to the bolt 23 andthe bolt 23 with respect to the handle 16 and then tightening up on the bolt 23. The tool is then brought up so that the wrench 17 engages the faces 13 oi the member 7 and wrench 18 the head of the screw 11 and said parts being held by the wrench in one hand, the operator uses his other hand to loosen the lock nut 12 as by using a wrench 15. When the nut 12 is loosened, the operator adjusts the position of the head of the screw 11 with respect to the end of the valve stem 5 so as to provide a slight clearancetherebetween when the valve is closed. This adjustment for clearance having been accomplished the parts 11 and 7 are held against movement by the operator with one hand through the use of my wrench, while with the other hand the operator manipulates the Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of latenta.Y j

parts 11 and 7 in adjusted position.

The invention `thus exemplifies a simple and ellicient form of tool well adapted for the purposes desired.

What I claim as my invention is:

1. In a device of the character described, the combination of a pair of wrenches Xedly secured together in sidewise spaced relation,

one of said wrenches being angularly adjustable with respect to the other for simultaneous use of both wrenches.

2. In a device of the character described, i

the combination of. a pair of wrenches ad- Y justably xedly secured together in sidewise spaced relation, one of said wrenches being angularly adjustable with respect to the other tor simultaneous use of both wrenches.

3. In a device ot' the character described, the combination 4of a handle, a pairof sidewise spaced apart wrenches lixedly secured thereto, one of said wrenches being adjustable lengthwise and angularly with respect to said handle.

Il. In afdevice of the character' described7 the combination of a handle having a transverse slot therein, a wrench having a lengthwise slot therein, a clamping member passing through said slots to secure said wrench 'to said handle, a second wrench, and means for adjustably securing said second wrench to the handle in spaced relation to the first wrench. j

5. In a device of the character described, the combination of a pair of wrenches, means Ario'idl connected to one of said wrenches and adjustably. secured to the other wrench for holding saidwrenches in adjustable sidewise spaced relation with respect to each other. j Y

6. In a device of the character described the combination of a'member, a wrench secured thereto for lengthwise and angular adjustment with respect thereto, a second wrench, and means for adjustably ixedly securing said second wrench to said member in sidewise spaced relation to the rst` wrench.

In testimony whereof, I aHX my signature. l ARTHUR I-I. BARTELT.

Washington, D. C.

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