US2610534A - Slidable outer jaw plier-type wrench - Google Patents

Description

Sept. 16, 1952 sHAFF 2,610,534

SLIDABLE OUTER JAW, FLIER-TYPE WRENCH Filed June 14, 1948 INVENTOR. E/WZJZ H 65% ATTORNEY- Patented Sept. 16, 1952 frssri r err-1 E spinner-s ower: JAW Prise-T ers "WRENCH v w iii male. sine, Spring-' ake ,,Micl-1 J.

Application Ji'lne 1 4, 1948; "Swish-Notifies This inventionrelates to improvements in slidable outerjaw plier-type wrench.v

The main" objects-of this inventionare:

First, to :provide awrench havin'gaaiwide rang'e ofadjustment which isfleasily and quickly manipulatedan'd a't the s'a'me timehas every: eflective gripping engagement with thefwork.

Second, to "provide a'wrenchioi this -type which may-be formed ofcoinparatively IightIs'tOcK- and at the same time iis'strongan'd rdurabler Third, to-provide a wrench-having the'sead vantages which may :be economically produced and-sis very:convenient to" operate.

Further objects :relatingito "details and economies of the invention :will' a pearirrom": the description to follow. .The invention repainted: out in theclaims.

Preferred embodiments 'o'fthe invention are illustrated. in the accompanying drawings, "in which:

Fig. 1 is a side-elevational view 'o'fmy wrench ShOWII'in'0105BdlPOSifiOIIBy fUH iines and' inlop'e'n position bydotted lines.

Fig. 2 is an under edge elevatioriai viewlooking from the left of Figs. .l and 3i Fig. 3 is a fragmentary *view maimy i-nlong'i tudinal section, parts: being shown in fiull "lines for convenience .inillustraticin'.

Fig.4 is a cros's'seotional view on e1ine corre= spending to line 4 4 orFig. ;3;rthe= adjustmg=nut being shown in fulllines.

Theembodiment of .my i 'inventicin i1mstrated comprises a tubular handle li oi fl ttened cross section havinga longitudinal s1Ut '2 'On'its u'I1der side and opposed side-openings ":3 The outer 'jaw member :4 *comprises ajaw sane shank 6 s'lidably fitting within th'ehandle. .This outer-3 aw member isprovided with"a threadediinnef portion 1 en: gaged by the adjusting inut 8 wlflch' projects through the'aside openings 3 to facilitat'e adjustim'e-ntof the nut. The?nutfsustains'the erid thrust on the .jawmember.

The. inner jaw 9', "which-intheembodiment illustrated isfori'ned as assheet metaismmpingns forkedor bifurcated't'o provide-arm's "I I! which embrace and are pivoted to the handleat TI. The actuating lever Iiis providedwithiafi outwardly offset forward end 13, pivoted to the inner: iewaat 1 4; The toggle link l 5 is' pivoted within the handle at I6 and is' ipivotally connected to the actuatingi lever, whieh-is-of 'iriwardlyfacing channelisectiomat|1.- The'pi ot-FI ispos'itione'd so tha'tthe li'nk' I 5 mainly-collapsesinthe handle fihrbughi the slo't' 2 theredr when helever'is in actuatediipositioniaisis shownifi e Claims. (or- 81 343 The pivot l1 swings across aaxplaneextending through the pivots I 4 andal fi so that when the lever is-in' actuated position .a' locking. toggle is provid'edfor holding' the .jaw' :in its :closed 'or actuated position. A coil spring. 1:8 is arranged on the pivot IA andbis provided .with a'terminal arm -i9 engaging' theljaw and a'iterminai arm'ifll engaging the actuating lever so "that "the. spring tends to' op'enthe jaw whentthe tog gle is broken. The "operating lever :is' .of such cross section as to embrace-the inner edgeofithe handle-when in actuat'ed position and totproviide-an' efie'ctive gripelement, that .is, the handle and thelever are both grasped in the .manipulation off-the wrench after theijawtis -zelos'ed.

To permit opening of the-wrench withsthe hand grasping :the Wrench, :1 provide a release or trip .iever -2 I which .iszpivoted within the actu ating lever l2 and .extendsaforwardlythereim and terminates in-alaterally disposedfinger piece 24 inthe lever. This tripping lever fulcrums: at 25xon the inner side of the vhandleasoth'at'pressure on the finger' piece breaks the 'toggle,. .therebyopening the wrench "by retracting the pivoted jaw. Thisiperm'its a one hand operation, thatfisiiboth handsi'are not required toopenithe. jaws.

The shank 6 is preferably; graduated a'sindi ea'ted at 26, the graduation beingprovided with indicia 2! which facilitates: the .aadjlustment- 'of the wrench for aparticularipieceof work.

My improved wrench with" the parts: arranged asindicated andidescribe'd?isfc'apableiof'veryiwide range of adjustment and. of .u'ses,1.is' light; iand convenientlyoperated. "I have illustrated ia'nd described my inventionin a highly spracti'cal embodim'ent'there'of; I have 'not attempteditto illustrate ordescr-ibe various modifications or adaptations which I contemplate-as 'it i'sbelieved that this disclosure will enable thoseskilled in the-art to'embody or adaptmy invention as 'maybe desired.-

Having thus described" m invention, wharf claim as new and d'esire to secure "by "Letters" Patent'is: i

p 1. 'In a; wrench the combii'ia tioriof a't bular handle of flattened cross section having a longn tudihal" s'lotin its" under sideandfopposed side openings, an outer .jaw havingfa shank slidable within' sai'd handle and provided'with'athreaded portion at its inner'end, an adjustin'gnutforsaid outer jaw threaded upon its said threaded portion and disposed to project ,into jsaid opposed 'sfde openingsto-facilitate manipulation" and support the outer'jaiw in its adjustedipos'ition's; inner Jawforkedtoembrabe"said"handleaiid pivdtally mounted thereon, an actuating lever of inwardly facing channel section having an offset at its 7 slot in said handle, the pivotal connection for the forward end of said link to said lever being adapted to swing across a plane extending through the pivotal connections for the lever to the inner jaw and for the link to the handle whereby a toggle lock is provided when the lever is in actuated position, a spring arranged on the pivot connecting said actuating lever and inner jaw and having terminal arms, one of which engages the jaw and the other the lever whereby the spring acts to urge the actuating lever and inner jaw to open position, and a toggle release lever pivotally mounted within said actuating lever to fulcrum on said handle and provided with a finger piece projecting through the under side of said actuating lever adjacent its forward end, said actuating lever being of such cross section as to embrace the under side of the handle when in actuated position and constituting a grip element when in actuated position.

2. In a wrench the combination of a tubular handle of flattened cross section having a longitudinal slot in its under side and opposed side openings, an outer jaw having a shank slidable within said handle and provided with a threaded portion at its inner end, an adjusting nut for said outer jaw threaded upon its said threaded portion and disposedto project into said opposed side openings to facilitate manipulation and support the outer jaw in its adjusted positions, an inner jaw forked to embrace said handle and pivotally mounted thereon, an actuating lever of inwardly facing'channel section having an offset at its outer end pivotally connected to said inner jaw adjacent its outer end, a toggle link pivoted at its rear end within said handle and pivoted at its forward end within said lever to collapse into said slot in said handle, the pivotal connection for the forward end of said link to said lever being adapted to swing across a plane extending through the pivotal connections for the lever to the inner jaw and for the link to the handle whereby a toggle lock is provided when the lever is in actuated position, a spring arranged on the pivot connecting said actuating leverrand inner jaw and having terminal arms, one of'which engages the jaw and the other the lever whereby the spring acts to urge the actuating lever and inner jaw to open position, said actuating lever being of such cross section as to embrace the under side of the handle when in actuated position and constituting a grip element when in actuated position. 7

3. In a wrench the combination of a tubular handle of flattened cross section having a longitudinal slot in its under side and opposed side openings, an outer jaw having a shank slidable within said handle and provided with a threaded portion at its inner end, an adjusting nut for said outer jaw threaded upon its said threaded portion and disposed to project into said opposed side openings to facilitate manipulation and support the outer jaw in its adjusted positions, an inner jaw forked to embrace said handle and pivotally mounted thereon, an actuating lever of inwardly facing channel section having an offset at its outer end pivotally connected to said inner its forward end within said lever to collapse into said slot in said handle, the pivotal connection for the forward end or said link to said lever being adapted to swing across a plane extending through the pivotal connections for the lever to the inner jaw and for the link to the handle whereby a toggle lock is provided when the lever is in actuated position, said actuating lever bein of such cross section as to embrace the under side of the handle when in actuated position and constituting a grip element when in actuated position.

4. In a wrench the combination of a tubular handle of flattened cross section having a longitudinal slot in its under side and opposed side openings, an outer jaw having a shank slidable Within said handle, an adjusting nut having threaded engagement with said shank and disposed to project into said opposed side openings to facilitate manipulation and support the outer jaw in its adjusted positions, an inner jaw pivotally mounted on said handle, an actuating lever of inwardly facing channel section having an offset at its outerend pivotally connected to said inner jaw adjacent its outer end, a toggle link pivoted at its rear endwithin saidhandle and pivoted at its forward end within said lever to collapse into said slot in said handle, the pivotal connection for the'forward end of said link to said lever being adapted to swing across a plane extending through the pivotal connections for the lever to the inner jaw and for the link to the handle whereby a toggle lock is provided when the lever is in actuated position, a spring acting to urge the actuating lever and inner jaw to open position, and a toggle release lever pivotally mounted within said actuating lever to engage said handle and provided with a finger piece projecting through the under side of said actuating lever adjacent its inner end, said actuating lever being of such cross section as to embrace thev under side of the handle when in actuated position and constituting a grip element when in actuated position.

5. In a wrench the combination or a tubular handle of flattened cross section having a longitudinal slot in its underside and opposed side openings, an outer jaw having a shank slidable within said handle, an adjusting nut having threaded engagement with said shank and disposed to project into said opposed side openings to facilitate manipulation and support the outer jaw in its adjusted positions, an inner jaw having a fixed pivotal connection to said handle, an actuating'lever of inwardly facing channel section having an offset at its outer end pivotally connected to said inner jaw adjacent its outer end, and a toggle link having a fixed pivotal connection at its rear. end within said handle directly to said handle and pivoted at its forward end within said lever to collapse into said slot in said handle, the pivotal connection for the forward end of saidlink to said lever being adapted to swim across a plane extending through the pivotal connections for the lever to the inner jaw and for the link to the handle whereby a toggle lock isprovided when the lever is in actuated position, 7

r 6. Ina wrench the combination of a handle, an outer jaw having a shank slidable within said handle, an adjusting nut for said outer jaw having threaded engagement therewith disposed to project from said handle to facilitate manipulajaw adjacent its outer end, a toggle link pivoted at its rear end'within said handle and pivoted at tion and to support the outer jaw in its adjusted positions, aninner jawhaving a'fixed pivotal connection to said handle at its forward end, an actuating leverpi'votally connected to said inner jaw at a point spaced from its connection to said handle, a toggle link having a fixed pivotal connection at its rear to said handle directly to said handle and pivoted at its forward end to said lever, the pivotal connection for the forward end of said link to said'lever being adapted to swing across a plane extending through the pivotal connections for the lever to the inner jaw and for the link to the handle whereby a toggle lock is provided when the lever is in actuated position, and a toggle release lever pivotally mounted on said actuating lever to engage on said handle and provided with a finger piece projecting through the said actuating lever adjacent its forward end.

ERNEST H. SHAFF.

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

UNITED STATES PATENTS Number Name Date 5 9,252 Shepard Nov. 21, 1893 952,079 McIntire Mar. 15, 1910 2,312,947 Westman Mar. 2, 1943 2,313,270 Sapp Mar. 9, 1943 2,443,153 Wells June 8, 1948 2,471,734 Fischer May 31, 1949 2,481,435 Meunier Sept. 6, 1949 2,489,895 Kash Nov. 29, 1949 2,500,590 Ward et a1 Mar. 14, 1950 2,533,817 Koskinen Dec. 12, 1950

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