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Publication numberUS153206 A
Publication typeGrant
Publication dateJul 21, 1874
Filing dateFeb 24, 1874
Publication numberUS 153206 A, US 153206A, US-A-153206, US153206 A, US153206A
InventorsCobnelius S. Van Wagkweb
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in joiners clamps
US 153206 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

c.vs. VAN wAauNEnv.

` loiners Clamps.

Patented'luly 21,1874.

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Specification forming part of Letters Patent No. 153,206, dated July 21, 1874; application filed February 24, 1874.

To all whom it may concern:

Be it known that I, CORNELIUS S. VAN WAGONER, of Brooklyn, in the county of Kings and State of New York, have invented an Improvement in J oiners Clamps, of which the following is a specification:

My invention relates to an improvement in what is known to the trade as joiners7 clamps, particularly to that class which have a movable or adjustable arm, on the end of which is 4a screw; and the invention consists in forming the mortise in the arm, where the beam passes through it, of such a shape as to bring the bearing-points thereof nearer together, and

consequently nearer to the central axial line of the arm.

Figure l is a side elevation of a clamp embodying my invention. Fig. 2 is a central vertical section of the same. Fig. 3 is an under-side view of the arm. Fig. 4 is a section through the line a b in Fig. 3.

A is the beam, provided with central side ribs f, curved at its lower end, provided with a fixed jaw, g, at its bottom, and a cap, O, at its top. A cross-section through the beam A on the plane of line 1/ y, Fig. l, will give the cruciform shape shown at J in Fig. 3. B is the arm, one end of which is provided with a binding-screw, C, having an adjustable head or presser-plate, Vh, between which and the lxed jaw g any object, E, is held and compressed. The part L of the arm B is enlarged ,and perforated with an opening, J, of a crucilform shape, as shown in Fig. 3, and in size a little larger than the beam A, so as to slide easily up and down the latter when held at right angles to it, or in the position shown in Fig. l. The sides of the opening J in the arm B are not made parallel all the way through,

as in the usual manner. The two lower lefthand central corners are cut away at a bevel, as shown in Figs. 3 and 4:, up to about the center of the arm, as shown at c to a in Fig. 4., and the two upper right-hand central corners are cut away in a similar manner, as shown at b to b in the same ligure. The lower lefthandend c of opening J is also cut away at a bevel, as shown at t n in plan in Fig. 3, and in section in Fig. 4, while at el it is not cut away. Cutting awaylthe bottom of the opening at t 'n gives a double hold or gripe to that part of the arm, making it less liable to slip on the beam than when it presents a plain at surface parallel to the back of the beam. i.

It will been that when an object, E, is placed upon the xed jaw g, in order to hold it there preparatory to tightening the screw C, we have only to push the arm B, slightly inclined, down the beam A, until the object E is held in place, as shown in Figs. 1 and 2, when it may be further compressed by turning` the screw C to any extent required. One or two reverse turns of the screw C will loosen the hold or gripe of the arm, so that it can be pushed higher up the beam, to release one article from the clamp or to insert another.

I claim as my inventiony The clamp-arm B, provided with the mortise J, and having bearing-points a b and upper and lower bearing-surfaces c d, in combination with the beam A, having side projections f, all constructed and operating as and for the purpose herein set forth.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2431833 *Nov 13, 1945Dec 2, 1947Simpson Herbert AAdjustable jar top remover
US2439151 *Sep 13, 1944Apr 6, 1948Viktor SpinnlerAdjustable clamping fixture for workbenches
US2986184 *May 12, 1959May 30, 1961Curtis Leslie MShank gripping wire frame clamp
US3002480 *Mar 17, 1959Oct 3, 1961Lee Topping HunterShipbuilding tool
US3102723 *Oct 7, 1960Sep 3, 1963Vaudreuil Edgar GC-clamp
US5692734 *Nov 25, 1994Dec 2, 1997American Tool Companies, Inc.Clamp structure
US5928231 *May 10, 1996Jul 27, 1999Klein; Jean-MichelImplantable osteosynthesis device
US6367787Mar 1, 2000Apr 9, 2002American Tool Companies, Inc.Hand clamp
US6412767Mar 6, 1998Jul 2, 2002American Tool Companies, Inc.Clamping jaw
US7159859Oct 3, 2003Jan 9, 2007Irwin Industrial Tool CompanyPipe clamp with releasable clamp body
US7699297Jul 25, 2002Apr 20, 2010Irwin Industrial Tool CompanyIncreased and variable force and multi-speed clamps
US7735813Nov 7, 2007Jun 15, 2010Irwin Industrial Tools GmbhClamping or spreading tool
US7815175Oct 19, 2010Irwin Industrial Tool CompanyIncreased and variable force and multi-speed clamps
US8074340Dec 13, 2011Irwin Industrial Tool CompanyIncreased and variable force and multi-speed clamps
US8240647May 5, 2010Aug 14, 2012Irwin Industrial Tools GmbhClamping or spreading tool
US8590871Dec 7, 2009Nov 26, 2013Irwin Industrial Tool CompanyClamping and or spreading tool
US8702076Sep 12, 2011Apr 22, 2014Irwin Industrial Tool Company, Inc.Increased and variable force and multi-speed clamps
US20050082728 *Jul 25, 2002Apr 21, 2005Cicenas Chris W.Increased and variable force and multi-speed clamps
US20050156368 *Oct 3, 2003Jul 21, 2005Fuller Anthony B.Pipe clamp with releasable clamp body
US20080053262 *Nov 7, 2007Mar 6, 2008Irwin Industrial Tool CompanyClamping or Spreading Tool
US20080106016 *Oct 30, 2007May 8, 2008Cicenas Chris WIncreased and Variable Force and Multi-Speed Clamps
US20100084798 *Apr 8, 2010Irwin Industrial Tool CompanyClamping and or spreading tool
US20100156013 *Mar 1, 2010Jun 24, 2010Irwin Industrial Tool Company, Inc.Increased and variable force and multi-speed clamps
US20100276860 *Nov 4, 2010Irwin Industrial Tools GmbhClamping or spreading tool
EP0980299A1 *Mar 5, 1999Feb 23, 2000American Tool Companies Inc.Adjustable clamping jaw
Cooperative ClassificationB25B5/102