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Publication numberUS1395585 A
Publication typeGrant
Publication dateNov 1, 1921
Filing dateSep 3, 1920
Publication numberUS 1395585 A, US 1395585A, US-A-1395585, US1395585 A, US1395585A
InventorsS. Kizer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1395585 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

T. s. KIZER.


1,395,585. Patented Nov. 1, 1921.

r Be it known that I, THoMAs hereinafter.




' seeker- WRENCH.

T 0 all whom it may concern."

S. KIZER, citizen of the United States, residing 'at Chattanooga, in the county of Comanche and State of Oklahoma, have invented certain wherein the wrench jaws may be readily 'positioned to accommodate different sized nuts;

the jaws together. may be increased simply by increasing the forward pressure against the jaws. I

And the invention has a still further object to provide a wrench which will be characterized by entire structural simplicity and which will provide a rugged tool. V

v Other and incidental objects will appear In the drawings; j j

Figure 1 is a perspectiveyiew ofmy im proved wrench showing the jaws thereof p j I I Fig. 2 is a vertical sectional view showing the wrench jaws retracted, this View more clearly bringing out the structural details of the wrench,

Fig; 3 is a transverse section on the line 3-3 of Fig. 2, looking in the direction of the arrows,

Fig. 4 is a perspective view showing-one of the wrench jaws in detail, and

Fig. 5 is a sectional View showing a slight modification of the invention. V

In carrying the invention into effect, I employ a hollow wrench head 10 enlarged toward its lower end and provided at its upper. end with a socket 11 for receiving a stock. Formed in the head to open'through the lower end thereof are oppositely disposed internal guide channels 12 each substantially T-shaped in cross section and the bottom walls ofwhichprovide upwardlyin clined wedging shoulders 13. Slidable upon the wrenchhead are companion jaws, let.

These jaws are preferably provided" with angular serrated jaw faces 15 and rlslng from the jaws are jaw shanks 16. The shanks 16 Specification of Letters Patent.

A further object of the inv'ention is to provide a wrenchavherein the jaws may be wedged into engagement with anut and wherein the wedging action tending to draw Patented N 0v. 1, 1921.

Application filed September 3, 1920. "(serial no. 407,840.

are tapered longitudinally and are substantially T-shap'ed in cross'section so as to slidably fit freely in the guide channel 12, the

outer SIClGS of said shanks defining upwardly inclined 'wedging' faces 17 coacting with the shoulders 13 of the channels.

said grooves are looking pins 19 slidably connecting the jaws'with the wrench head. The' aws may, of course, be shaped to fit a square nut asshown in the drawing or may be shaped to fit a hexagonal nut, and formed in the jaw shanks at their inner ends are mating recesses 20 adapted, when the jaws are fitted over a bolt to engage a nut thereon, to receive the projecting'end of the bolt.

-As will now belreadily understood in view of the preceding description, by simply holding 'the wrench head with its lower end presented downwardly, thejawsl will gravitate to projected position, the jaws being pro- H gressively spread 1n their downward movement. Consequently the jaws may then, as sugg'este'din Fig. 1, be readily engaged over a nut, when'by pre ssingdownward upon the wrench head, the shoulders 13 of the head wilhact' against the faces 17 of the jaw shanks for forcing the jaws toward each other with a wedging action and binding the aws 1n engagement with the nut, the effect the nut and, as will be seen, the grippingaction of the jaws may be increased by simply increasing the forward'thrust against the wrench head. As-will be noted, the

any inward pressure toward each other. As

willi be appreciated, this feature will be found of advantage when it is desired to simply engage the jaws about a nut without gripping the nut, mutilation being thereby avoided. I accordingly provide a highly eflective wrench structure and a socket wrench which is adapted for a wide range of use.

a slight modification of In Fig. 5 of the drawin s, I have shown this modification, a conical wrench head 21 is employed. Atits upper end this head is provided with a socket 22 asin the pre-- ferred construction, and formed in the head are inwardly converging channels corresponding to the channels 12. In these channels are mounted coacting jaws 23v slidably connected with the head by locking pins 24 corresponding to the 1 his 19" ofthe preferred construction. T e jawsf23 are 25," This ring may be moved upwardly upon the head so that the jaws maybe posltiojned downwardly to-enga e 'a nut, when the ring" may" then be 'move downwardly to'sur round the jaws, lockin the'jaws inengage ment with the nut; y iorci the ring downwardly over the j-aws,the jaw shanks mayibe relieved of any stress thereon tenda j aws'slidably connected ing' to, separate the jaws and when the" wrench is turned for rotating 'the nutthe ring will, Qf course, resist movement of the jaws away 'from each other; from the upper end portion-ofthe head i's upward displacement.

a stop pin 26 for limiting the is claiihe' asnewfist Have-w thus described the i nvlention, what" 1}. A"- wrench including "a headjprov'ided with converging shoul rs and enacting having shanks substantially triangular in e invention. In

head in the closed position of the jaws; F i ns r 1 slopingrexterior wall, coacting jaws shda with the head and cross section and provided with inclined faces coasting with saidshoulders whereby the jaws will be urged toward each other as the headis advanced upon the jaws, corresponding faces of the shanks abutting when the jaws are closed.

'2, A wrench including a head provided with guide channel's substantially T-shaped in cross section, the bottom walls of said channels providing inclined shoulders," and- ,coactingja'ws having shanks" substantially T-shaped' in section and slidabl'y fit- .tingf'in said channels, the shank'sfhavin in:

with said shou ders dined face's coactin whereby the'jawsiwi be ur ed-toward each otherasthe head is'advance'd upon the jaws. 3. A wrench including a head with inclined'shou'lders, and coacting jaws slidably' connected with thehead' and having jawshanks' rising'therefrom' and provide with inclined faces "to coa'ctwith said shoulder's whereby the jaws will be urged toward each other as the head is advanced upon the jaws, the jaw shanks havingconfronting faces disposed toabut when the jaws are closedT-andtliejjaws bein formedwitlfflat faces at-the junctionso the; shanks there provided of the'head to sustain forward thrust of'the 4.- A wrench including"a head havinila y mounted upon thefhead and having sloping exterior walls conforming to the inclination of the wall of the head, and a"lockin 'ring slidable upon said wall of the headandinovable to surround the. jaws enacting with the s10 ing walls thereof;

n'tes'timon whereofTafli'x m signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2555836 *Apr 30, 1948Jun 5, 1951Werich Herbert ASocket wrench
US2719445 *Aug 19, 1954Oct 4, 1955Giebler Walter HStud puller
US2850931 *Jan 3, 1957Sep 9, 1958James ConwayCam-closed, slidable jaw wrench
US4520698 *Jan 18, 1984Jun 4, 1985Martinmaas Werner WAdjustable socket for socket wrenches
US5509332 *Feb 28, 1994Apr 23, 1996Three Star Enterprises, Inc.Split socket
US5540124 *Jun 21, 1993Jul 30, 1996Srhoj; Edward B.Adjustable gripping device
US7311020 *Jan 20, 2006Dec 25, 2007George Stephen DTool for operating subterranean utility valves
EP2543479A1 *Jul 4, 2011Jan 9, 2013Liang, Yi-MingAdjustable socket structure
WO1994000276A1 *Jun 21, 1993Jan 6, 1994Edward Boris SrhojAdjustable gripping device
U.S. Classification81/128, 81/186, 81/112, 279/55
International ClassificationB25B13/00, B25B13/44
Cooperative ClassificationB25B13/44
European ClassificationB25B13/44