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Publication numberUS2514130 A
Publication typeGrant
Publication dateJul 4, 1950
Filing dateJun 20, 1944
Priority dateJun 20, 1944
Publication numberUS 2514130 A, US 2514130A, US-A-2514130, US2514130 A, US2514130A
InventorsJones Harold T
Original AssigneeJones Harold T
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Locking wrench and pliers
US 2514130 A
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Description  (OCR text may contain errors)

July 4, 1950 H. T. JONES LOCKING WRENCH AND PLIERS Filed June 20, 1944 uvvav 70R 'fihROLD 7'; -JONES ,4 rrokwvn Patented July 4, 1950 UNITED STATES PATENT OFFICE LOCKING WRENCH AND PLIERS &

Harold T. Jones, Vallejo, Calif.

Application June 20, 1944, Serial No. 541.222

Claims. (01. 81-84) This invention relates to wrenches or pliers of the type having besides a pair of plier-like handles, a toggle lever brought into action when gripping a nut or other object so as to greatly multiply the pressure of the gripping jaws.

The principal object of the present invention is to provide improvements over the construction of such a wrench shown in U. S. Patent No. 2,280,005 whereby the toggle lever action is improved.

Speciflc features of the improvement will appear in the following description and accompanying drawings.

In the drawings Fig. 1 is a side view of the wrench with the forward sides of the channel shaped handles broken away to reveal the toggle lever action positioned between them'.

Fig. 2 is a cross section of Fig. 1 taken along the line 22 of Fig. I.

Fig. 3 is a detached perspective view of the toggle pivot block.

The general construction of the tool follows the showing of the U. S. patent above mentioned in that it comprises preferably a pair of pipe wrench-like jaws l and 2 transversely pivoted together at 3 and with one of the plier-like handles l extending rigidly from jaw I, while the other handle 5 is transversely pivoted at its inner end as at 6 to a rearward extension I of the other jaw 2.

Both handles are preferably of more or less hollow channel or U-shape in cross section arranged in confronting relation as indicated, and a coiled tension spring 8 hooked at one end as at 9 through an opening near the center of the fixed handle and at its other or forward end to a small apertured lug ill on jaw 2 tends to resiliently pull the jaws open.

Within the confronting hollow handles is a lever l I cooperating with handle 5 to form a pair of toggle levers. Lever I I normally extends at an angle between the handles with its opposite ends positioned respectively within the channels of the two handles and with its forward end transversely pivoted as at [2 to handle 5 and its opposite or outer end transversely pivoted to the inner end of an adjusting screw l3 longitudinally screwed into the outer end of handle 4 which is made tubular for a distance adjacent the end and threaded to receive the screw as indicated, but except for this tubular threaded portion 4' the handle 4 is a. freely open channel on it under side as indicated in the drawings.

The pivotal connection of 'toggle lever II to the screw comprises drilling a hole longitudinally in the inner end of the screw I3 and revolvably fitting therein a. pin H having an enlarged head or block [5 at its end against which the end of the screw bears. This head is of a size and form to fit within the channel of the handle so as to be slidable therealong and in contact with the underside of the channel as at l8 as the screw is turned.

The head ii of the pin II is flattened at opposite sides and is transversely pivoted to the end of the lever as by a pin IS, the end of the lever being shown bifurcated at IT to straddle opposite flat sides of the head l5, or the head may be bifurcated and the end of the lever solid if desired.

The toggle lever II is provided with a foot I! at an intermediate point in its length which is directed into the channel of the lower handle 5 to rest upon a releasing lever 20 which is preferably of sheet metal of generally U-shaped cross section to easily flt within the handle and is kept in place by a transversely extending pin 2i secured to the side walls of handle 5 and working freely in a slot 22 in the side walls 23 of the releasing lever. The lever extends forward of this pin a relatively short distance so that its forward end 24 pivots or iulcrums against the handle 5 when the outer or rearward end 25 of the releasing lever is lifted or pulled toward handle l, the releasing lever being extended rearwardly beyond the handle 5 to make it accessible to a finger of the hand holding the plier-like handles when engaging a nut or other object X between the jaws l and 2 so that the grip may be instantly released at any time upon pulling the releasing lever.

The extreme rearward or outer end of handle 5 is bent somewhat abruptly away from handle 4 as at 5' and the overlying end of lever 20 is similarly bent or formed while providing clearance 26 below the lever so that it may preferably also be rocked downward as well as upward. The fulcrum or pivotal support for such downward rocking of lever 20 may be a slight shoulder or heel in the channel of lever 20 as at 21 where the clearance 26 begins.

By the construction described the screw I3 may be longitudinally moved by turning its head [3' to adjust the jaws of the tool for thickness of the object to be gripped, and when the jaws are closed upon the object by pressing the plieriike handles towards one another the toggle lever ll will straighten out through a line drawn through the centers of pins 6, I2 and Hi to thereby develop an enormous pressure on the grip.

The length ofthe foot I! of the toggle lever is such as to permit the center of pin 12 to just pass the center line 28 so as to lock the grip upon the object when desired to thereby avoid the otherwise necessity of applying maximum hand pressure on the handles all the time. when the job being worked on is finished the locked toggle grip may be easily released by either pressing downward or pulling upward on the outer end of releasing lever 20 which upon being rocked either way will forcibly move handle I slightly outward from foot; II to carry the center of pin it back over the center line 28, so that the toggle will collapse under the eiIect of spring I as well as from the pressure of the work tending to spread the jaws, and the wrench will at once open to the dotted line position.

It is of course obvious that heel 21 on releasing lever 20 may be omitted if it is desired to have the releasing lever operate by pulling its outer end up only.

7 Having thus described my improved construction in the toggle wrench of this kind, what I claim is:

1. In a wrench comprising the combination of a handle provided with a stationary jaw, a movable jaw mounted on said handle, a toggle comprising a channel shaped handle lever pivotally engaged at one end with said movable jaw and a toggle link pivotally engaged at one end in the channel of said handle lever intermediate its ends and at its other end with said handle. the improvement which comprises a toggle release lever pivotally secured within the channel and extending longitudinally therein, the free end of said release lever extending beyond the corresponding end of the handle lever and a por tion of said release lever being engageable with said toggle link in the closed position of said handle lever to release said toggle.

2. In a wrench as set out in claim 1 the pivotal securing of said release lever being loose to permit the two way rocking of said release lever for release of the toggle upon either way of movement of said lever.

3. In a wrench as set out in claim 1 said toggle link provided with a foot in contact with the inner portion of the toggle release lever.

4. In a wrench of the type having a first member formed as an elongated handle provided with a stationary jaw at the forward end thereof, a movable jaw mounted on said member arranged to cooperate with the stationary jaw to grip an article, a toggle for operating thev movable jaw comprising a channel shaped operating lever as a toggle link pivotally engaged at its ends to the first member and said operating lever intermediate the ends thereof, the operating lever ex- .lock the toggle, the improvement which comprises; an elongated toggle release lever having a portion positioned between said first member and said operating lever and extending longitudinally and rearwardly in the space therebetween and having its forward end disposed within the channel of said operating lever and operativeiy connected thereto by pivot means, mounted for movement in a plane passing through the first member and said operating lever, the release lever having a portion projecting rearwardly beyond the rear end of said second member adapted to be engaged by a finger of the hand, the release lever having a camming portion engageable with one of said members when it is actuated.

5. In a wrench comprising the combination of a handle provided with a stationary jaw at the forward end thereof. a movable jaw mounted on said handle, a toggle comprising an elongated channel shaped handle lever pivotally engaged at the forward end thereof to said movable jaw and a, toggle link plvotally engaged at one end in the channel of said handle lever intermediate its ends and at its other end with said handle, for locking the wrench in gripping an article, the improvement which comprises; an elongated toggle release lever having a portion extending longitudinally and rearwardly in the space between the channel shaped handle lever and the toggle link, pivotally connected with one and provided with cam means engaging the other when it is rocked about its pivot, said toggle release lever having another portion projecting rearwardly beyond the rear end of the handle lever disposed in position to be engaged by a finger of the hand holding the wrench.

HAROLD T. JONES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Seashore Sept. 25,

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US145929 *Oct 31, 1873Dec 30, 1873Himself And Hazen PImprovement in pipe-tongs
US612982 *Jul 7, 1898Oct 25, 1898 And john w
US633578 *Oct 10, 1898Sep 26, 1899Matthews A BurnsMonkey-wrench.
US952079 *Dec 14, 1908Mar 15, 1910Perfection Wrench CompanyWrench.
US2201918 *Jul 9, 1938May 21, 1940William PetersenWrench
US2284003 *Jan 21, 1941May 26, 1942Luppert Valentine CTable leaf support operating means
US2312947 *Jun 9, 1941Mar 2, 1943Westman August AWrench
US2313270 *Oct 23, 1940Mar 9, 1943Sapp Floyd BWrench
US2325245 *Oct 1, 1942Jul 27, 1943Joel HahnPlier type wrench
US2385654 *May 5, 1943Sep 25, 1945Gunnar F SeashoreWrench
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2574676 *Nov 22, 1946Nov 13, 1951Waterbury Glenn JToggle actuated plier-type wrench
US2576286 *Apr 5, 1945Nov 27, 1951Murray EisenbergQuick release attachment for vise grip pliers
US2589511 *Aug 30, 1947Mar 18, 1952Frahcis L RiceRelease mechanism for toggle actuated plier type wrenches
US2590750 *Jun 1, 1948Mar 25, 1952Bruce BurnsRelease means for toggle-actuated wrenches
US2592807 *Jan 23, 1950Apr 15, 1952Jones Harold TLocking wrench and plier
US2598650 *Jul 28, 1948May 27, 1952Seymour Smith & Son IncSnap lock pliers with unlocking lever
US2604803 *Sep 17, 1945Jul 29, 1952Glenn Mccann ForestPlier type, toggle actuated wrench
US2612806 *Sep 15, 1951Oct 7, 1952Ohman Carl LPliers
US2627774 *Apr 21, 1951Feb 10, 1953Edward Walter CharlesRelease attachment for wrenches and the like
US2664774 *Feb 7, 1952Jan 5, 1954Harvie Walter EOpening means for locking wrench type pliers
US2669145 *Oct 3, 1952Feb 16, 1954Mead Homer AReleasing device for locking pliers
US2685218 *Aug 21, 1952Aug 3, 1954Bruce BurnsToggle-actuated, plier type wrench
US2695540 *Apr 17, 1953Nov 30, 1954Berger Harold AToggle wrench
US2714828 *Nov 19, 1953Aug 9, 1955Metal Engineering CompanyJaw-adjusting means for toggleactuated pivoted jaw wrench
US2894547 *May 1, 1957Jul 14, 1959Lapeer Mfg CompanyLever unlocking means in toggle action clamping devices
US3188602 *Nov 19, 1962Jun 8, 1965Jasper Blackburn CorpParallel-groove electrical connector
US3192804 *Sep 20, 1962Jul 6, 1965Petersen MfgChain clamps
US3199062 *Mar 1, 1962Aug 3, 1965Jasper Blackburn CorpParallel groove connector for hot-stick application
US3210070 *Jun 3, 1963Oct 5, 1965Lagana Jr Biase AAutomobile body repair tool
US3262343 *Mar 27, 1964Jul 26, 1966Weller Robert WToggle wrench having automatic abutment adjusting means
US3354759 *May 3, 1966Nov 28, 1967Cook Thomas LVise grip pliers
US3395724 *Oct 22, 1965Aug 6, 1968Union Carbide CorpPiercing valve
US3791012 *May 8, 1972Feb 12, 1974Komline Sanderson Eng CorpTraction applying tool
US4238862 *Jul 13, 1978Dec 16, 1980Leatherman Timothy SPocket multiple tool
US4297756 *Mar 7, 1980Nov 3, 1981Lance Bruce JLocking wrench tool with auxiliary mechanical output
US4478114 *Sep 29, 1982Oct 23, 1984Aldo ArenaWrench with overcenter linkage
US4802390 *Mar 19, 1987Feb 7, 1989Warheit William AAuto-grip pliers
US5052251 *Sep 18, 1990Oct 1, 1991Blue Water Holding Company, Inc.Locking wrenches
US5197359 *Aug 18, 1992Mar 30, 1993Blue Water Holding Company, Inc.Locking wrenches
US5291914 *Jun 30, 1993Mar 8, 1994Milbar CorporationPiercing valve assembly for pliers
US5398535 *Sep 14, 1993Mar 21, 1995Giffin; Roger E.Spreader clamp for automobile body repair and the like
US5697114 *Feb 29, 1996Dec 16, 1997Bear Mgc Cutlery Co., Inc.Folding multi-tool
US5964131 *Jan 26, 1998Oct 12, 1999Valle De Oro Bank, N.A.Hand tool with sculpted handles and integral key ring
US5996451 *Jan 17, 1997Dec 7, 1999Valley De Oro Bank, N.A.Hand tool with sculpted handles and integral key ring
US6006385 *Jan 24, 1997Dec 28, 1999Kai U.S.A. Ltd.Multi-tool
US6047426 *Jan 16, 1997Apr 11, 2000Bear Mgc Cutlery Co., Inc.Folding multi-tool with adjustable pliers
US6161455 *Dec 28, 1998Dec 19, 2000Great Neck Saw Manufacturers, Inc.Adjustable plier
US6170104Apr 14, 1998Jan 9, 2001Buck Knives, Inc.Hand tool with multiple locking blades controlled by a single locking mechanism and release
US6233769Sep 12, 2000May 22, 2001Buck Knives, Inc.Hand tool with multiple locking blades controlled by a single locking mechanism and release
US6282996 *Jan 29, 1999Sep 4, 2001Leatherman Tool Group, Inc.Multipurpose locking pliers
US6357068Jan 11, 1996Mar 19, 2002Buck Knives, Inc.Combination tool with oppositely deploying handles
US6412130Mar 16, 1999Jul 2, 2002Kai U.S.A. Ltd.Multi-tool
US6430768May 16, 2001Aug 13, 2002Leatherman Tool Group, Inc.Folding multi-tool with adjustable pliers
US6487740May 1, 2001Dec 3, 2002Buck Knives, Inc.Hand tool with multiple locking blades controlled by a single locking mechanism and release
US6487941Oct 1, 2001Dec 3, 2002Great Neck Saw Manufacturers, Inc.Hand tool
US6578221Mar 28, 2001Jun 17, 2003Great Neck Saw Manufacturers, Inc.Foldable multi-tool
US6626070May 4, 2001Sep 30, 2003Irwin Industrial Tool CompanyCompound toggle link retention mechanism
US6651967Oct 5, 2001Nov 25, 2003Franklin R. BarberAlignment clamp
US6691357Mar 23, 2001Feb 17, 2004Leatherman Tool Group, Inc.Multipurpose locking pliers
US6694558Feb 5, 2003Feb 24, 2004Great Neck Saw Manufacturers, Inc.Foldable hand tool
US6718585Aug 13, 2002Apr 13, 2004Leatherman Tool Group, Inc.Folding multi-tool with adjustable pliers
US6748826Feb 21, 2002Jun 15, 2004Work Tools, Inc.Slide switch adjustable wrench
US6802094Dec 3, 2002Oct 12, 2004Leatherman Tool Group, Inc.Hand tool with multiple locking blades controlled by a single locking mechanism and release
US6983505Mar 26, 2004Jan 10, 2006Leatherman Tool Group, Inc.Folding multi-tool with adjustable pliers
US7080423Jul 16, 2004Jul 25, 2006Leatherman Tool Group, Inc.Hand tool with multiple locking blades controlled by a single locking mechanism and release
US7117771Dec 23, 2004Oct 10, 2006Smithville, LlcSelf-adjusting, locking pliers with gripping force adjustment
US7299724Jan 24, 2007Nov 27, 2007Warheit Matthew WSelf-adjusting gripping tool
US7353736Jul 27, 2005Apr 8, 2008Leatherman Tool Group, Inc.Enhanced multi-function hand tool
US7472632 *May 15, 2007Jan 6, 2009Irwin Industrial Tool CompanyLocking pliers
US7637753 *Mar 3, 2009Dec 29, 2009Harry WongGround clamp
US7921752Mar 21, 2008Apr 12, 2011Leatherman Tool Group, Inc.Enhanced multi-function hand tool
US8534168Feb 24, 2011Sep 17, 2013Joel S. MarksCompact adjustable locking pliers
US8535289Jul 25, 2012Sep 17, 2013Vincent C. ForbesVial attachment pliers
DE1271649B *Sep 5, 1963Jun 27, 1968Petersen MfgKlemmzange
Classifications
U.S. Classification81/370, 81/380, 81/155, 269/228
International ClassificationB25B7/00, B25B7/12
Cooperative ClassificationB25B7/123
European ClassificationB25B7/12B