US2489323A

US2489323A - Clamp

Info

Publication number: US2489323A
Application number: US616941A
Authority: US
Inventors: Peter M Rasmussen
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-09-17
Filing date: 1945-09-17
Publication date: 1949-11-29
Anticipated expiration: 1966-11-29

Description

Nov. 29, 1949 P. M. RASMUSSEN CLAMP Filed Sept. 17, 1945 INVENTOR. PETER M. RASMUSSEN ATTORNEY.

Patented Nov. 29, 1949 U NI TED STAT ES E F'I CE.

CLAMP Peter M. Rasmussen, New York, N. Y.

Application September 17, 1945, Serial No. 616,941

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 3 Claims.

This invention relates to a clamp for attaching a horizontal beam to a vertical post.

An object of this invention is to provide a clamp that will secure a horizontal beam to a vertical post and will permit rapid detachment.

Further objects and advantages of this invention, as well as its construction, arrangement and operation, will be apparent from the following description and claims in connection with the accompanying drawings, in which Fig. 1 is a front elevation of the fastener;

Fig. 2 is a front elevation of the bracket; and

Fig. 3 is an isometric view showing the arm of the clamp in use.

A preferred embodiment of the invention is illustrated in Figs. 1, 2 and 3 wherein the arm of the clamp is designated generally by reference character H3. Arm Iii is made of strip metal and is bent to provide a horizontal member ll. Depending from one end of horizontal member II is a vertical member l2 and depending from the other end of horizontal member II is a vertical member l3. Connected to the lower extremity of vertical member i3 is a horizontal offset member l4 from the outer end of which depends a third vertical member l5, which terminates in a loop Hi, the end of the loop l6 being welded to the vertical member I5.

The arm Ii! is pivoted to a bracket 20 that is fastened to the post 42 by means of screws (not shown) that pass through apertures 22 in a plate or vertical member 2|. Vertical member 2| has outwardly extending flanges 23 that have upper and lower bolt-holes 2424.

A bolt 30 passes through the lower of the boltholes 24 and through the loop IE to provide a pivotal attachment of the arm I to the bracket Zil, a nut (not shown) on the end of bolt 30 bein utilized to attach the arm It) to the bracket 2|].

Vertical member l of arm ID is confined between vertical member 2| of bracket 20 and a lock bolt 32 that passes through the upper bolthole 24.

A chain 33 can be attached to lock bolt 32 as by welding and fastened to post 42 by a staple 34 to prevent misplacement of the lock bolt 32.

In the operation of the device, beam 40 is placed in the notch 4| of the post 42 and the arm I0 is pivoted about the bolt 30 so that offset portion l4 rests on the top 43 of post 42 and the members ll, [2 and I3 encompass beam 40, said members having suiflcient resilience to be forced over beam 40 and to resume the shape illustrated. Lock bolt 32 is then inserted through upper bolthole 24 to hold the arm rigidly in place.

Various modifications and changes can be made in the subject device without departing from the scope of the invention.

The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

I claim:

1. A clamp for attaching a horizontal beam to a vertical post notched at its upper end, the beam being disposed in the notch, comprising a strip having an elongated horizontal member, two vertical members rigidly secured to and depending from opposite ends of said horizontal member, a second horizontal member offset from the lower end of one of said vertical members, a third vertical member depending from the outer extremity of said offset member, said third vertical member terminating in a loop at its lower end, a bracket for attachment to the side of the post, said bracket having a vertical member, parallel flanges projecting from the edges of said vertical member, said flanges having upper and lower bolt-holes, a bolt passing through the lower of said bolt-holes and through said loop, a nut on said bolt, a second bolt passing through the upper of said bolt-holes, said third vertical member being disposed between said flanges and also between said vertical member of said bracket and said second bolt.

2. A clamp for securing a beam on a post comprising a metal strip, leg members secured rigidly to and depending from opposite ends of said strip, an ofiset member secured rigidly to and depending from the end of one of said leg members parallel to said strip, a foot member secured rigidly to and depending from the end of said oiiset member and terminating in a loop at its end, a bracket adapted to be attached to such post, said bracket comprising a plate having parallel flanges projecting therefrom, a first bolt passing through first bolt-holes in said flanges and said loop to carry said foot member rotatably, and a second bolt secured removably in second bolt-holes in said flanges to secure said foot member against said plate.

3. A clamp for securing a beam on a post comprising a metal strip bent to define a generally U-shaped member having one leg including an offset portion and a foot depending from the end of said oflset portion and terminating in a loop, a bracket adapted to be attached to such post, said bracket comprising a plate having parallel flanges projecting therefrom, a first bolt passing through first bolt-holes in said flanges and said loop to carry said strip rotatably, and a second bolt secured removably in second b01t-h01es in said flanges to secure said foot against said plate.

PETER M. RASMUSSEN.

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

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