US1599021A - Plier wrench - Google Patents

Description

W. T. LONG ,Sept 7 1926.

PLIER WRENCH Filed April 9, 1924 Lil) g; moved out of engagement Patented Sept. 7, 19276.

FICE.

WILLIAM T. LONG, OF PUYALLUP, WASHINGTON, ASSIGNOR TO 'W'.

H; HURT, oF

LONG BEACH, CALIFORNIA.

PLIER WRENCH.

Application led April 9,

This invention relates to an improved plier wrench and seeks, among other objects, to provide a simple and convenient hand tool which may be used as a pair of pliers, as a wrench, and as a hand vise. i

The invention seeks, as a further object, to provide a tool wherein a lirm grip may be had upon the work and wherein the movableY jaw of the device willk partake of rectilinear movement with respect to the ,fixed jaw.

And the invention seeks, as a still further object to provide a device whereinby properly manipulating the hand levers of the tool, the movable jaw of the device will be automatically freed for unrestrained indeendent movement with respect to the lixed Jaw so that the movable jaw may be manually adjusted Vor may be shiftedby simply turning the device over when the movable jaw 'will shift by gravity. o

Other and incidental objects will appear hereinafter.

In the drawings:v Y Figure' 1 is a side elevation of my improved tool ,partly broken away and illustrated in section,

Figure 2 is a horizontal sectional view on the line 2-2 of Figure 1, looking in they direction of the arrows, y

Figure 3 Vis a fragrnentary vertical sectional 4view particularly showing the movable j aw of the device, U

Figure 4 is a Vview similar to Figure 3, showing the feed dogof the movable jaw therewith,

Figure 5 is a fragmentary side elevation showing a slight modification of the invention, and n Figure 6 is a fragmentary sectional view on the line 6 6 of Figure 5, looking in the direction of the arrows.

Referrino` now more particularly to the drawings, employ a lever or stock 10 substantially V-shaped in cross section throughout the major portion of its length so that the lever is thus provided with a reduced inner edge and pivoted upon said lever is a coacting channel-shaped lever 11.Y At its forward end.. the lever 11 is provided with ears 12 straddling the lever 10 and extending through said ears and through'the latter lever is a pin 13 pivotally mount-ing the lever 11. At its forward end, the lever 10 is formedrwitha head 14, atvone end of which is provided a forwardly directed jaw 15.

1924. Serial No. 705,308.

As best brought out in Figures 2, 3 and 4 of the drawings, the head is channeled to deline parallel side plates 16 and opening into the space between the plates is a recess 17 lin the forward -end of the lever 10. Opening into said recess is a cavity 1S above and forwardly of which is a shoulder 19, while at the bottom of the recessis provided a flat shoulder 20.

Mounted upon the head 14 to coact with the iixed jaw l5 is a movable jaw 2l onwhich is formed a shank plate 22. The shank plate is kfreely received between the side platesY 16 of the head and is enlarged at opposite sides thereof to form a substantially cylindrical guide rib 23 snugly but slidably iittingin grooves 24 in the inner faces of the plates Formed on the guide'rib at its inner side, is a rack 25 extending from end to end of the vrib and accommodated in the."

recess 17 to cooperate with said rack is a dog- 26 which is provided with teeth to engage the teeth of the rack. Extending through the ears 12 of the` lever 11 transversely through the recess Y is a pin 2T mounting the dog and formed on the dog at its lower end is a forwardly directedtoe 28.

ressing the dog into engagement with said rack is a fiat spring 29. At one end this spring is formed with a crook 30 which snugly fits within the cavity 18 of the lever 10 tov expand thereagainst for removably supporting the springto extend across the shoulder 19 and bear at its free end against the rear edge of the dog. It is observed that the channel, the recess and the cavity formed in the head 14 are in communication,that

- the shoulder 19 is disposed intermediate the recess 17 and the cavity 18 and thatthe de pending toe 28 of the dog 26 ycoacts with the shoulder 20. Extending' transversely between the sideplates 16 of the head 14 at their lower forward corn-ers is a removable pin 31 limiting the jaw 21 against nient. p

As best brought out in Figures l, 3 and 4 of the drawings, the forward edges of the side plates 16 are formed to slope downwardly and rearwardly away from the adjacent face of the jaw 15 while the forwardedge of the shank plate 22 of the jaw `21 is formed to pivotally i displace slope upwardly and rearwardly in reverse K are ceac- ting jaw members 32 and 33 respectively. These jaw members are formed with ears Si to straddle the jaws and extending througjh said ears and through the jaws are pins detachably connecting said members with the jaws. fit its inner end, the jaw member 32 is provided with an upturned lug 3G which is snugly received between the side plates 1G to rest flat against the rear edge ot the jaw la, while the jaw member 33 is similarly provided at its inner edge with down turned lugs 23T to bear against the rear edge ot the jaw 2l at opposite sides ot the shank plate QQ.

In the present instance, I have shown the jaw members as provided with teeth to engage the worl; but, of course, these jaws may be otherwise roughened or may be smooth, as may be desired. Secured at one end within the lever ll is a longitudinally bowed i'lat spring 8S which is arranged to extend forwardly and is notched at its iree end to straddle the inner edge oic the lever so that the spring will thus coaet between the leaves i'for swinging the lever il away from the lever 10.

As will' now be seen in view of the 'foregoing description7 the dog QG provides .a connection between the lever il and the jaw 21 so that when the lever ll is swung' toward the lever l0, the dog will Yfunction to shiift the movable jaw 2l toward the lined jaw i5 for gripping the worlr. Upon the release of the lever 11, the spring 8S will immediately Yfunction to return the lever and since the dog is tightly held against the rael by the spring Q9, the dog will serve to return the jaw 2l to its position away irom the jaw i5. By pushing upon the jaw 2l, this jaw may be manually shifted toward the fixed jaw and thus initially adjusted with respect thereto, the rack 25 riding over the dog 2G as the movable aw is shifted. However, the movable jaw cannot, as will be seen, be adjusted away from the lined jaw without the release of the dog. To accomplish this release ot the dog, the lever 1l is, as shown in Figure l, swung beyond its normal position away from the lever lO. Then in normal position the lever 11 is at the end of its throw by the spring 38. As will be seen, when the lever 1l is moved toward the lever 10, the pawl Q6 is shifted upwardly away Yfrom the shoulder 20 while when the lever ll is released, the pawl is 'etui-ned so that, shown in Figure 3, the toe 2S of the dog abuts said shoulder tor limiting the lever at the end ot its throw by the spring 38. However, when the lever l1 is then further swung manually away from the lever 10, the pivotal center ot' the pawl is swung further downward toward the shoulder 2() with the result that, as shown inl Figure d, the pawl is rocked, by reason of the engagement of the toe 28 thereof with the shoulder 20, away trom the rack 25, iiexing the spring Q9. T he movable jaw 2i is then, ot course, 'freed tor manual adjustment either towardwor away from the tixed jaw 15 and, if desired, shitting ot the jaw may be accomplished simply by turning the tool over so that the movable jaw will gravitate either toward or away from the iixed jaw as desired. ln operating the tool on a nut, for instance, the jaws may be released by simply relieving the grip on the levers l0 and il when the jaws will spread sutliciently to permit the tool to be swung for a new hold. I accordingly provide a particularly eil'ective structure for the purpose set forth and a tool well adapted Jfor a wide variety ot' uses.

lnFigures 5- and G of the drawings, I have illustrated a slight modiiieation oi the invention wherein the jaws 39 and Ll-O of the tool are provided at their outer ends with teeth all in the rear of which said jaws are Yformed with smooth faces adapted to grip a nut without mutilation thereof. Formed in adjacent side 'faces of' the jaws are longitudinally tapered dove-tail slots l2 and removably wedged in said slots arc coacting cutters d8, the confronting faces of the jaws, at said slots, being provided with mating channels all to accomodate the object to be severed by the cutters. Gtlierwise, the modified structure is identical with the preferred embodiment of the invention and further description is accordingly believed unnecessary. y

Having thus described the invention, what I claim is:

A tool orp the character specified comprising a lined handle member having a head at one end terminating in a jaw and formed with a communicating channel, recess and cavity, the recess having al shouldel1 upon the forward portion of its bottom and there being another shoulder intermediate the recess and cavity, a movable jaw mounted in the channeled head and having its rear portion toothed to provide a rack, a pin supported in the head upon opposite sides oi the channel to prevent displacement ot the movable jaw and limit its outward movement, an operating member pivoted to the head, a dog pivoted to the operating member and having a depending toe to eoact with the said first mentioned shoulder to disengage the dog from the movable jaw whereby the latter may be freely adjusted, and a flat spring crooked at one end and fitted into tie said cavity and having its opposite end engaging the dog and retained in place by the said second mentioned shoulder.

In testimony whereof atiiX my signature.

vWILLIAM T. LONG. [ns]

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