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Publication numberUS2027534 A
Publication typeGrant
Publication dateJan 14, 1936
Filing dateAug 5, 1933
Priority dateAug 5, 1933
Publication numberUS 2027534 A, US 2027534A, US-A-2027534, US2027534 A, US2027534A
InventorsIngersoll Charles B
Original AssigneeIngersoll Charles B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Stud bolt wrench
US 2027534 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Jan. 14, 1936. C, B ,NGERSCQLL 2,027,534

STUD BOLT WRENCH Filed Aug. 5, 1953 l 1-TE" 7 l CHARLES E Iou Patented Jan. 14, 1936 UNITED STATES PATENT OFFICE Application August 5,

1 Claim.

This invention relates to improvements in wrenches for securely gripping rounded articles and while intended for use generally Wherever it may be advantageously applied, it is particularly 5 adapted for use as a wrench for rotating stud bolts.

Objects of the invention are to provide a Wrench of simple construction which can be economically manufactured, which may be conveniently used to operate a stud bolt and which will be very eicient in operation.

Other objects are to provide a wrench which may be quickly and conveniently placed over the end of a stud bolt, rod, pipe or other member of rounded cross section and which will securely grip and hold said member against a relative turning movement in either direction; may be operated without marring the threads or otherwise materially injuring the member.

An additional object is to provide a wrench head of the class above indicated having a casing with a wrench engaging face and to provide a plurality of gripping elements of different sizes which may be interchangeably used to fit bolts or other rounded members of different sizes.

The above objects are accomplished and additional ends are attained by the novel construction, combination and arrangement of parts hereinafter described and illustrated in the accompanying drawing in which there is shown a preferred embodiment of the invention, it being 'understood that the invention is capable of various adaptations and that changes and modications may be made or resort had to substitutions which come within the scope of the claim hereunto appen-ded.

In the drawing:

Figure l is a side elevational view of a wrench constructed in accordance With this invention,

4,0 Figure 2 is a side elevational'view of the core employed in carrying out the invention,

Figure 3 is a plan View taken from the inner end of the core,

Figure 4 is a plan view of the barrel taken with core removed,

Figure 5 is a cross sectional View taken as indicated by the lines 5 5 of Figure l, and showing the elements in an inoperative position,

Figure 6 is a similar View showing the elements in an operative position,

Figure 7 is a central, longitudinal, sectional View showing the wrench positioned on a stud bolt.

Proceeding now to a detailed description of the invention with reference to the particular adap..

1933, Serial No. 683,833

tation thereof disclosed in the drawing, the numeral I0 denotes a shell or casing having a cavity Il in one end thereof and having a reduced end portion I2 of hexagonal or other suitable shape adapted to be engaged by a wrench or other tool. The cavity II is formed With hexagonally arranged walls, the corners being rounded to form clearance space for the rollers hereinafter described. The Walls of the cavity II are provided with longitudinal, parallel ribs and grooves I3. The reduced end portion I2 is provided with an axial socket I4 of square or other polygonal shape adapted to receive the head of a wrench handle which is of similar cross sectional shape. The numeral I5 denotes a cylindrical core which is adapted to loosely t in the hexagonal cavity II of the shell I0. The core I5 is provided at the outer edge thereof with a flange I6 which overlaps the axial face of the shell.

The numeral Il denotes an axial bore which extends through the core I5 and is adapted to receive the stud I8 or other member to be operated upon. The core I5 is also provided with three bores I9 which extend into the core I5 from the inner end thereof to a plane in spaced relation to the outer face of the core. The bores I9 are formed in parallel relation t0 the center bore l1 and are equally spaced around said center bore Il. The bores I9 are of suflicient diameter to form a slot 20 in the wall of the bore I1 and to form a relatively larger slot in the outer circumferential face thereof.

The numeral 2l denotes rollers which are adapted to loosely fit in the bores i9. The rollers 2I are provided over the circumferential face thereof with closely spaced, longitudinal ribs 22 and corresponding grooves which are adapted to mesh With' the ribs I3 in the Walls of the cavity II. Each roller 2l is provided with an annular groove 25 and the core I5 with an annular groove 26 in which there is positioned a spring ring 2l. The ring being seated in the groove 26 and entered in the outwardly presented portion of each groove 25 in each roller 2| to yieldably hold the rollers 2l in an inward position.

The core I5 is provided adjacent the rear end thereof with an annular groove 2S in which there is positioned a split spring ring 29 Which has a slightly larger outside diameter than the core, and which is adapted to engage in the groove 30 to yieldably hold the core in an operative position therein.

It will be seen with the rollers 2l thus positioned in the core, the same will project out wardly beyond the cylindrical face of the core I5 and inwardly beyond the wall of the center bore. The core I5 is positioned in the cavity II of the shell with the projecting portion of each roller positioned in one of the rounded corners of the cavity I I as shown in Figure 5.

The wrench is used by entering the stud or other member in the center bore I'I, the core being easily mounted on said stud I8 when the rollers 2| are positioned in the corners of said cavity II. A turning movement of the shell causes the teeth in each roller to engage the teeth I3 in the wall thus moving each roller toward the center portion of one of the sides of the wall of the cavity II,

As the central portion of each of said sides is closer to the center of the core this moves the roller inwardly and causes the same to securely grip the stud I8 or other member so that it may be operated by placing a wrench on the wrench face I2 or by placing a crank in the square socket I4.

When it is desired to release the wrench, the shell I 0 is moved back to its original position to bring the rollers 2I in the corners of the cavity, in which position the wrench may be freely moved on or from the bolt. In case it is desired to turn the bolt I8 or other member in the opposite direction, the opposite movement will cause each roller 2I to move over the adjacent wall in exactly the same manner so that the wrench may be conveniently operated to screw or unscrew a stud bolt I 2 or other member of rounded cross section.

While I have illustrated and described the invention as applied to a stud bolt wrench, it is understood that the same may be used in mechanical devices wherein the member I8 isa driving member and the shell I0 a driven member.

The term stud bolt employed in the foregoing description and in the following claims is intended to include a rod, pipe or any member capable of being operated in connection with the device herein disclosed.

Having thus illustrated a particular adaptation of the invention and described the same in detail, I claim:-

In a device of the character described, a head having a cavity, a plurality of cam faces on the wall of said cavity, a core mounted in said cavity for rotary movement in either direction, said core having an axially arranged bore adapted to receive a member of rounded cross section; circumferentially spaced slots in the wall of said core, rollers mounted in said slots with the axes thereof disposed in parallel relation to the axis of said core, said rollers projecting inwardly into said bore and outwardly beyond the circumferential surface of said core, a circumferentially extending channel around the intermediate portion of each roller, a coincident circumferentially extending groove around said core, a split spring ring tted in said groove and entered in the outwardly presented portion of each channel in each roller, said spring yieldably holding said roller in an inward position, said rollers adapted to grip said rounded member when moved into engagement with said cam faces by a relative turning movement of the head and core.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2613564 *Jan 3, 1949Oct 14, 1952Snap On Tools CorpAdjustable and reversible stud removers and resetters
US3889557 *Aug 14, 1974Jun 17, 1975Young Richard HStud removing tool
US4676125 *Apr 7, 1986Jun 30, 1987Ardelean Jeffrey LAdjustable socket
US4899626 *Aug 11, 1989Feb 13, 1990Kenneth LymburnerBolt or stud mounting and extracting tool
US5349887 *Jun 21, 1993Sep 27, 1994Kaye SuwaTubular pipe wrench
US6959555Aug 18, 2003Nov 1, 2005Bsst LlcHigh power density thermoelectric systems
US7111465Mar 31, 2003Sep 26, 2006Bsst LlcThermoelectrics utilizing thermal isolation
US7273981Aug 18, 2003Sep 25, 2007Bsst, Llc.Thermoelectric power generation systems
US7932460Jul 22, 2004Apr 26, 2011Zt PlusThermoelectric heterostructure assemblies element
US7942010Jul 27, 2007May 17, 2011Bsst, LlcThermoelectric power generating systems utilizing segmented thermoelectric elements
US7946120Jul 27, 2007May 24, 2011Bsst, LlcHigh capacity thermoelectric temperature control system
US8079223Aug 11, 2009Dec 20, 2011Bsst LlcHigh power density thermoelectric systems
US8495884Apr 6, 2011Jul 30, 2013Bsst, LlcThermoelectric power generating systems utilizing segmented thermoelectric elements
US8640466Jun 3, 2009Feb 4, 2014Bsst LlcThermoelectric heat pump
US8701422Jun 3, 2009Apr 22, 2014Bsst LlcThermoelectric heat pump
US8795545Mar 30, 2012Aug 5, 2014Zt PlusThermoelectric materials having porosity
US8997608 *Feb 14, 2013Apr 7, 2015ToolTech, LLCStud removal tool
US9138873 *Feb 14, 2013Sep 22, 2015ToolTech, LLCFlip socket nut removal tool
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US9306143Jul 30, 2013Apr 5, 2016Gentherm IncorporatedHigh efficiency thermoelectric generation
US9616554 *Oct 19, 2014Apr 11, 2017R. Hendrix II WilliamStud installation and removal tool and method of use
US20040031514 *Aug 18, 2003Feb 19, 2004Bell Lon E.Thermoelectric power generation systems
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US20040261829 *Jul 22, 2004Dec 30, 2004Bell Lon E.Thermoelectric heterostructure assemblies element
US20050072165 *Mar 31, 2003Apr 7, 2005Bell Lon E.Thermoelectrics utilizing thermal isolation
US20080173342 *Jul 27, 2007Jul 24, 2008Bell Lon EThermoelectric power generating systems utilizing segmented thermoelectric elements
US20090293499 *Jun 3, 2009Dec 3, 2009Bell Lon EThermoelectric heat pump
US20100031988 *Aug 11, 2009Feb 11, 2010Bell Lon EHigh power density thermoelectric systems
US20140224075 *Feb 14, 2013Aug 14, 2014ToolTech, LLCFlip socket nut removal tool
US20140224076 *Feb 14, 2013Aug 14, 2014ToolTech, LLCStud removal tool
US20160107300 *Oct 19, 2014Apr 21, 2016R. Hendrix II WilliamStud Installation and Removal Tool and Method of Use
DE3644442C1 *Dec 24, 1986Jun 9, 1988Werner Hermann Wera WerkeScrewing tool for externally threaded bolts or the like
DE4301582A1 *Jan 21, 1993Jul 22, 1993Koken Tool CoBolt driver - has three clamping rollers at 120 deg which ride on six lobed inner cam surface of socket to grip bolt head
DE10211759A1 *Mar 14, 2002Oct 9, 2003Sta Co Mettallerzeugnisse GmbhToggle lever clamping device for fixing workpieces to be processed comprises an adjusting mechanism provided with a blocking device consisting of a stationary guide surface, a rolling body, a holder, and a load-adjustable clamping part
EP0273434A1 *Dec 28, 1987Jul 6, 1988A.T. & G. Company, Inc.Driver for reinforcement bar chemical anchor
U.S. Classification81/53.2, 81/128
International ClassificationB25B23/02, B25B13/50, B25B23/10, B25B13/00
Cooperative ClassificationB25B13/5066, B25B23/103
European ClassificationB25B13/50B2C, B25B23/10C