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Publication numberUS1619749 A
Publication typeGrant
Publication dateMar 1, 1927
Filing dateJan 29, 1926
Priority dateJan 29, 1926
Publication numberUS 1619749 A, US 1619749A, US-A-1619749, US1619749 A, US1619749A
InventorsRichard Murray
Original AssigneeRichard Murray
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Clamp
US 1619749 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 1,1927. 1,619,749

R. MURRAY CLAMP Filed Jan. 29, 1926- I INVENTOR z'olari Warm A'ITORNE z Patented Mar. 1, 1927.

UNITED STATES wane rss'r cr s s.

RICHARD MURRAY, NEVT YORK, N. 'Y

CLAMP.

Application filed January 29, 1926. serial no. 24,581.

jaw. members into predetermined spaced re-' lation and for retaining the same in such position; a further object being to provide a clamp of the class described. one part of which issu'bstantially T-shaped in form, one end of the crosshead of said part forming a j aw, and another jaw detachably and adjust ably mounted with relation to the shank of the first named part, and the other end of the crosshe'ad of the first named part having a lever pivotally and detachably' coupled therewith, and means interposed between the second jaw and said lever for moving and retaining the jaws of the clampin fixed relation; and with these andother objects in view, the invention consists in a clamp of the class and for the purpose specified, which is simple in construction and operation, and efiicient in use, and which is con structed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying' drawing forms a part in which the separate parts of myimprovement are designated by suitable reference characters in each of the views, and in which-.-

F ig. 1 is a side View of a clamp made according to my invention and showing the same in operative position.

Fig. 2 is a-view similar to Fig. 1 but showing the several parts of the clamp in open position.

Fig. 3 is a section 'on the line 3'3 of Fig. 1; and,

Fig. a is a perspective detail view showing a slight modification.

My improved clamp as shown in the accompanying' drawing comprises two jaw parts 5 and 6f, the part 5 asshown in Figs.

. 1 and 2 of the drawing being in the form of a T-shaped member comprising a crosshe'ad 7 to the central portion of whlch 1s fixed shank 8 arranged at right angles to the cro'sshead and composed of separate parts 8 andS positionedat opposite sides or the crosshead 7. The part 8 is provided at its free end with an aperture 9 opening outwardly through the end thereof, and one wall or said aperture is provided with a plurality of notches or recesses 10 adapted to receive a pin, bolt or rivet 11 secured to the central portion oi the jaw member 6 This pin or bolt also passes through an elongated aperture 12 formed in the part 8 and in longitudinal alinenient with the aperture 9 and the notches or recesses 10 therein. This aperture 12 may, if desired, be formed similar to the aperture The parts 8" and 8 are also preferably retained in spaced relation adjacent the apertures 9 and 12 by a block 3 secured therebetween.

The ends or the jaw members 5 and 6 are preferably provided with wide faces formed by angle iron plates 13, secured thereto as seen in Figs. 1, 2 and 3 of the drawing to provide a comparatively wide bearing race therefor. In the use or the clamp, the crosshead 7 of the jaw member 5' is provided with an aperture 14 opening through one side edge thereof asclearly seen in Figs. 1 and 2 ofthe drawing, A lever 15, provided at its free end witha pin' 16, is pivotally mountedin connection with the crosshead 7 by passing the pin 16 into the aperture 14, the shank of the pin 16 being fiattenedfto permit of its passage through the outlet of said aperture and to key the lever 15 against displacement unless moved into such position 1 as to permit the passage" of the pin through the outlet as will be apparent.

The lever 15 is provided adjacent the pivot 16 with an elongated aperture 17, one wall or which is provided with spaced notches 18 which are positioned below the longitudinal central plane or the lever and below such plane extending through the a'linlr lever 19, the link arm or which is provided at its end with ascrew or bolt 20 adapted to pass through the aperture 17 and operate in the notches or recesses 18 thereof. A winged nut 21 is employed to retain the ilink lever 19 against displacement from the lever 15. The short end of the link lever 19 is provided with a spring keeper or catch 22 into which thelever 15 is adapted to pass, and by means of which said lever is held against displacement when the clamp is in operative position as seen in Fig. 1 of the drawing.

In Fig. 4 of the drawing, I have shown a slight modification in which the shank part 8, consisting of the parts 8 and 8 are pivoted to the crosshead 7 as seen at 23 in stead of being riveted or fixedly secured thereto as shown in Figs. 1 and 2 of the drawing. It will be understood that I am not necessarily limited to any specific manner of constructing the separate parts of my improved clamp, nor to the proportionate dimensions thereof herein shown and described. I

In the drawing, I have shown for the purpose of illustrating one use of my invention, the side wall members 24 and 25 of a concrete mold or form such as em ployed in the construction of buildings or the walls of buildings. My improved clamp or a number of these clamps may be used on that part of the mold or formed wall structure just above a concrete body 26, formed thereby for the purpose of retaining the walls'24 and 25 in spaced rela- 7 tion, or for moving the same into proper position if bulged. It will be apparent that in the use ofmy improved clamp, and in applying the same to the walls 2% and 25, theparts will be moved into the position shown in Fig. .2 of the drawing, after which the'lever 15 is moved downwardly, which operation forces the link lever 19 laterally and downwardly and swings the jaw 6 or the face thereof inwardly into en-.

gagement with the wall 25. In the downward movement of the lever 15, it willbe noted that the pivot pin 20 passes the dead center position between the pivots formed by the pin 16, and the pivotal connection of the jaw 6'with the link lever 19, and the parts are retained in operative position, the keeper 22 also aiding to retain the lever 15 in position. i

It will also be understood that the pivot pins 11 and 20 may be adjusted into any of the notches or recesses 1018 respectively, but when it is desired to retain the jaws 5 and 6 in parallel relation, said pins are placed in correspondingnotches as in the illustration given, both pins being located in the second notch from the left. However, this arrangement may be changed tosuit other conditions or uses of the clamp.

While I have shown certain details of construction for carrying my invention into spirit of my invention or sacrificing its.

advantages.

Having fully described my invention, what I claim as new and desire to'secure by Letters Patent, is

1. A clamp of the class described comprising two jaw parts, a member attached to one part and with which the other part is adjustably coupled, and means involving a lever and link lever construction independent of said member and pivotally connected to the separate jaw parts for moving said parts into predetermined position.

2. A clamp of the class described comprising two jaw parts, a member attached to one part and with which the other part is adjustably coupled, means involving a lever and link lever construction pivotally connected to the separate jaw parts for moving said parts into predetermined position, and said lever and link lever being adjustably coupled together to compensate for the adjustmentof the jaw parts with relation to each other by said member.

3. A clamp of the class described comprising two jaw' parts, meanscoupled with the central portion of one jaw part and with which the central portion of the other jaw part is adjustably and pivotally mounted, a lever pivotally'mounted to the free end of the first named jaw part, a link lever. pivotally mounted to the corresponding end of the other jaw part, and means for adjustably coupling said link lever and first named .ilever.

4. A clamp of the class described comprising two jaw parts, means coupled with the central portion of one jaw part and with which the central portion of the otherjaw part is adjustably and pivotally mounted, a lever pivotally mounted to the free end of the first named jaw part, a link lever pivotally mounted to the corresponding end of the other jaw part, means for adjustably coupling said link lever and first named lever, and means for retaining the lever and link lever in operative position when the clamp is in use.

5. A clamp of the class described comprising two jaw parts, means coupled with the central portion of 'one jaw part and with which the central portion of the other jaw part is adjustably and pivotally mounted, a lever pivotally mounted to the free end of the first named jaw part, a link lever pivotally mounted to the corresponding end of the other jaw part, means for adjustably coupling said link lever and first named lever, means for retaining the lever and link lever in operative position when the clamp is in use, and the adjustable coupling of the lever and linkvlever being produced by an aperturev inone of said parts, andhaving notches to receive the pin on the other part.

6. A clamp of the class described comprising two jaw parts, a lever pivotally mounted to the free end of one of said jaw parts, a link lever pivotally mounted to the corresponding end of the other jaw part, means for adjustably coupling said link lever and first named lever, and means on said jaw parts adjacent said levers and independent thereof for adjustably coupling said jaw parts.

7. A clamp of the class described comprising two jaw parts, a lever pivot-ally mounted to the free end of one of said jaw parts, a link lever pivotally mounted to the corresponding end of the other jaw part,

means for adjustably coupling said link lever and first named lever, means on said jaw parts adjacent said levers and independent thereof for adjustably coupling said jaw'parts, and one of said jaw parts being pivoted in connection with said last named In testimony that I claim the foregoing as my invention I have signed my name this 28th day of January, 1926.

RICHARD MURRAY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2452325 *May 10, 1946Oct 26, 1948Rosser Robert FForm-securing clamp
US2501238 *Jan 24, 1944Mar 21, 1950Lapeer Mfg CoPlier-type article-holding clamp having a spring-pressed jaw
US2610660 *Aug 3, 1950Sep 16, 1952SharmanClamp for clamping concrete forms
US2670773 *Dec 18, 1950Mar 2, 1954Avery Edward LConcrete form clamp and anchor holder
US2761475 *Apr 14, 1953Sep 4, 1956La Hayne Richard DAdjustable beam and form clamp
US2946360 *Jun 16, 1958Jul 26, 1960Solo Einar RConcrete form clamp
US3032331 *May 25, 1959May 1, 1962John T DotyPipe clamp for trimming machines
US3511467 *May 24, 1967May 12, 1970Rohrer OttoApparatus for the production of slab-shaped construction elements from pourable or castable materials
US3904235 *Jan 8, 1974Sep 9, 1975Fehr George Veighted clamp for handling buoyant materials under water
US4326703 *Aug 26, 1980Apr 27, 1982Marley William RCut log section holder for log splitting operation
US4484775 *Aug 23, 1982Nov 27, 1984The United States Of America As Represented By The Secretary Of The ArmyAdjustable smooth action linkage gripper mechanism
US5647102 *Nov 7, 1995Jul 15, 1997Guyan Machinery Co.Quick release clamp
US6814334 *Mar 6, 2000Nov 9, 2004Whitehead Richard EMethod and apparatus for limiting movement of insulation during building construction
US7314236 *Jun 27, 2003Jan 1, 2008Cascade Waterworks Manufacturing Co., Inc.Adjustable pipe repair clamp installation tool
US7364202 *Nov 4, 2003Apr 29, 2008Cascade Waterworks Manufacturing Co., Inc.Adjustable pipe repair clamp installation tool
Classifications
U.S. Classification269/209, 269/238, 269/228
International ClassificationE04G17/06, E04G17/12
Cooperative ClassificationE04G17/12
European ClassificationE04G17/12