US1459445A

US1459445A - Clamp

Info

Publication number: US1459445A
Authority: US
Inventors: Elderton Robert; Clarence D Baldwin
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-09-09
Filing date: 1922-09-09
Publication date: 1923-06-19
Anticipated expiration: 1940-06-19

Description

June 19, 1923.

R. ELDERTON ET AL CLAMP" Filed sept. 9.

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Patented June 19', 1923.

' UNITED STATES.

PAT-ENT OFFICE.

CLAMP.

Application filed September 9, 1922. Serial No. 587,245.

To all whom t may concer/n:

Be it known that we, ROBERT 'ELDERTON and CLARENCE yD. BALDWIN, citizens of the United States, residing at Independence, in the county of Buchanan and State of Iowa, have invented certain new and useful Im-l provements in a Clamp, of which the following is a specification.

The present invention relates to a clamp and has for its principal object to provide a structure capable of fastening a canvas upon a concrete pavement so as to prevent the canvas from blowing therefrom during the drying process of the concrete.

Another object of the invention is to rovide a clamp of this nature which will) be simple and eflcient in construction, reliable in operation, com rativel inexpensive to manufacture, dura le, readily operated, and Well adapted to the purpose for which it is desi e i ith the above and numerous other objects in view as will appear as the description progresses, the invention resides in certain novel features of construction, and the.

combination and arrangement of rts as y will be hereinafter more fully described and claimed.

In the drawings Fi re 1 is a perspective of the clamp showing the same in use,

Figure 2 is a perspective of the clamp taken from a different angle from that shown in Figure 1,

Figure 3 is a perspective of the body of the clamp, and

i Figure 4 is a perspective of the movable aw. J Referring to the drawing in detail it will be seen that the bod 1 of the clamp is elongated being provide at one end with a right angularly extending apertured lip 2 while its other end terminates in a right angularly extendin jaw 3 which is of a bifurcated construction having disposed between its bifurcations a curved tongue 4. The jaw 3 has its bifurcations pointed so that .they may be driven inte wood or the like when found desirable or necessary and the tongue d forming part of the 'aw is preferabl constructed to engage t e edge of eitlier a Wooden or stee beam. The body 1 is provided with an elongated longitudinally extending slot 5. The movable jaw 6 is in the form of a plate having a centrally located amature 7 and at one end is provided with a T-shaped extension 8 ada ted to extend,`

through the slot in the bo y 1 asis illustrated toadvantage in Figure 2. A rod. 9 has one end. seated: within the aperture 7 of the movable' jaw 6 and passes through the aperture 10 of the lip 2 and terminates in a right angularly extendin handle member 11. A coil spring 12 is isposed about the rod 9 between the gear 2 and the movable jaw 6 tending to movethe movable jaw so that'the T-shaped extension 8 is situated at the end 'of' the slot 5 in the body 1 adjacent the fixed jaw 3.

Referring especially to Figure 1 it will be seen that a sectionv of a concrete pavement 13 has been illustrated with a sheet of canvas 14y spread thereover. Asis usual the side forml is constructed of wood and our clamp is situatedvso that the fixed jaw 3 engages the bottom edge of this side strip of the form 15, while the body 1 extendsl vertically therewith. The movable jaw 6 rests upon the canvas 14 and the spring 12 holds the movable jaw in frictional engagement with the canvas thereby preventing the Wind from blowig the same off the concrete pavement" 13. hen it is desired to release the clam all that is necessary is to pull upwar y u on the rod 9 and move the clamp slight y ownwardly so as to disengage the `tongue 4 from the form 15 whereby the fixed jaw may readily be disengaged therefrom and the entire clamp removed. This particular use of the clamp, however, has merely been 'ven (bg Way of example and it is to be un ersto that the device may be put to numerous other usages. llt is also to be understood that the particular construction which We have illustrated has also merely been given by way of example and that numerous changes in the details of construction and in the combination and arran ment of parts may be resorted to without 2- partlng from the spirit of the invention as hereinafter claimed.

Havingthus described our invention what We claim as new is 1. A clamp of the class described including a lon 'tudinally slotted body formed with a rig t angularl extending amrtured lip at one end and a xed bifurcated'jaw at its other end and a ton e disposed .between the bifurcations of the xed jaw, and a movable jaw providedwith a 'lf-Shad extension at one end projecting throng the slotted body, a rod attached at one end to the Q Lemme movable jaw and projecting through the of the body and disposed at right angles aperture of the lip on the body, a spring thereto, a Vrod attached at one end. to the disposed about the rod between the apermovable jaw and projecting through the tured lip and the movable jaw so as to noraperture of the lip onthe body, and a spring 5 mally hold the movable jaw adjacent the disposed betweenI the lip and the movable 20' xed jaw, and the other end of said rod bejavv above the rod so as. to normally hold ing curved at substantially right angles the movable jaw adjacentr the xed jaw.

, thereto for forming a handle. portion. ln testimony whereof we ax our signa- 2. A clamp 3f tllile class dscriled ncludL tures in presence of two witnesses. 10 ing a longitu ina y slotte bo y orme v with a right angularly-eXtendi-ngapertured lip at one end and a fixed jaw at its other end extendin in the same direction with the lip, Witnesses:

a movab e jaw in the form ofa plate hav- JNO. MOMILLAN, 15 ing one end thereof engageable with the slot Arm F. M