US1431527A

US1431527A - Framing clamp

Info

Publication number: US1431527A
Application number: US441249A
Authority: US
Inventors: Thomas H Kane
Original assignee: Truscon Steel Co
Current assignee: Truscon Steel Co
Priority date: 1921-01-31
Filing date: 1921-01-31
Publication date: 1922-10-10
Anticipated expiration: 1939-10-10

Description

T. H. KANE.

FRAMING CLAMP.

APPLICATION FILED JAN-31,1921

1A3 Lmn Patented. 00. 10,1922,

2 SHEETSSHEET I.

w o a N T. H. KANE.

FRAMING CLAMP.

APPLICATION FILED JAN.3 .1921.

Patented Oct. 110, 1922..

FHUMAS H. AWE, 0F YOUNGSTUFT, UHIU, FIG'NOF' TO THE "FRUSCON STEEL CUM- FANY, 0F YOUNG-S N, OHIU, A CURFQRATION 0F QHJEO.

FRAMING UlrhlllF.

application lflledl January 311, real. aerial Ito. 441349.

To all whom it may concern:

Be it known that l, 'lrros. H. NE, a citizen of the United States, residing at oustown, in the county of 'll/lahoning and of Ohio, have invented certain new and useful Improvement in Framing Clamps, of which the following is a specification.

' This inventionrelates to an improved; framing clamp for connecting crossing ele- -ments such as the structural members in a ,combination and arran ement of fireproof building construction.

A. primary object of the invention is to provide a clamp of a simple and practical construction capable of being readily used as a securing means for clampin together structural parts, and to that en it is intended to be especially useful as a framing clamp for connecting the metallic strujc- 7 tural parts in a fireproof building operation, to thereby avoid the use of bolts or rivets and obviating the customary drilling or welding operations with their consequent expense in time and labor. It is also the purpose of the invention to provide a clamp of the type referred to which will connect the assembled parts in a thoroughly practical and rigid manner and also to provide a clam which ma be easily and quickly applied by unskilled labor in the operation of holding together such structural parts. as beams, studs, bars and the like. Also the invention contemplates a framing clamp which functions very efiectively in connecting together the vertical frame bars of curtain walls, with the sill angles in building construction.

A further object of the invention is to provide a clamp whose parts may be readily assembled and applied and euickly adjusted into the desired position or holding the structural parts together.-.

With the above and other objects in view, which will more readily appear asthe nature of the invention is better understood, the same consists in the novel construction,

v arts hereinafter more full escribed, illustrated and claimed' In the accompanying drawings v Figure 1 is a side-elevation of one embodiment of the invention applied to crossing structural members.

Figure 2 is a horizontal sectional view taken on the line an of Figure 1..

Figure 3 is an elevation of one side of the body or fulcrum element of the clamp shown in' Figures 1 and 2.

Figure 4 is a top plan: view of a modified Figure 7 1s a view illustrating the apclamp. p Figure 8 is a horizontal sectional view taken on the line 8-8 of Figure 7 Figure 9-is an end elevation of the members constituting the framework engaging clip gfsthe type of clamp shown in Figures an v Figure 10 is a perspective view of the combined key and clamp element used in Figures 7, 8 and 9,

Figure 11 includes side elevations of the 'members of the clip shown in Figure 9.

Similar reference numerals designate corresponding. parts throughout the several figures of the drawings.

As previously indicated, the present invention primarily contemplates a simple and economical framing clamp for securely holding together crossing members at their points of intersection, and !is of special utility as a clamp for the structural frame plicationof a still further modified type of v elements of, fireproof buildings, as shown 5 for example in my pending application Serial No. 434044 filed December 30,1920.

lln carrying forward the general objects of the invention, a clamp is provided which in all of its embodiments, includescertain essential elements cooperating to securely bind or connect the crossed parts or members to be united and to that end, the clamp preferably includes in combination, a clip element designated generally asA, a clamp-l ing plate 15, and a locking'or tensioning device C which may be quickly assembledand applied by unskilled workmen and readily adjusted to final'posi'tion.

Referring first to the embodiment shown in Figures 1 to 3 inclusive, that form of the invention includes a clip element Aof substantially Ill-shaped formation, having the inturned relatively contractible hookshaped ends 1 for engaging with the flanges 'of an l-r a or the like, while the body one end with the offset bearing foot 6, while the edges of the flanges 5 at the opposite end of the plate constitute a bearing 6 for 'engaging with the member 3/ disposed at right angles to the structural member 00. When the clamping plate is assembled in operation relative to the clip, the said side flanges 5 also cooperate with the shanks of the hooks 1 to prevent the same from spreading.

The portion of the loop 2 of the clip element extending beyond the outer face of the wall 4 of the plate B receives a suitable wedge or equivalent locking element 7 in such a manner that when the wedge is L driven into the loop by a hammer blow, the

force of the latter will have the effect of drawing the loop of the clip through the opening or eye 3 and at the same time forcing the ends of the flanges 5 of the clamp firmly into engagement with the part 3 Thus, with the hook portions 1 of the clip in the foot 6 working in'opposition to the bearing end 6 of the clamp-ing plate B, the abutting faces of the members as and y will be securely bound and clamped together. When the wedge 7 is driven into final position,'the relative resiliency of the parts of the clamp will materially increase the grip of the hooks of the clip on the structural members by compressing the side members of the loop portion 2, thus materially augmenting the rigidity of the connection.

In the embodiment of the invention shown in Figures 4 to 6 inclusive, the same essential features are observed. In this embodiment, the clip element A is preferably .in the form of a bolt having the threads 9 while the inner end thereof is provided with the hook portions 10 for engaging with the structural member as, and the said threaded shank of the bolt projects through the opening 11 in the wall of the plate 12 which constitutes the body B of the clamp to receive the nut 13. Upon tightening the nut on the threaded portion of the shank of the bolt, the members 00 and y will be securely clamped together in the same manner as by the clamp shown in Figures 1 and 2, since the plate 11- has at one end the bearing foot 14, and at its other end the bearing edges 15.

It will also be observed that inthis form the clamping plate B is of channel formation to give the same the desired stiffness while the flanges 12 are provided at their intermediate portions'with the offset lips 12 which bear against the shanks of the hooks 10 in such a way as to prevent spreading thereof when the clip is placed under tension.

Another modified form of the invention is shown in Figures 7 to 11 inclusive wherein the clip A is held in operative position by means of a combined clamping and wedge element C In this construction, the clip element A is preferably divided into

complemental members

16 and 17, having at their inner edges the hooks 18 and 19 respectively for engaging for example with the structural member m, while their opposite edges are formed with the matching

knuckle elements

20, 20 and 21 respectively, resembling the matching knuckles of a hinge. hen in assembled relation, the

knuckle portions

20 and 20 of the member 16 will aline with the single intermediate part 21 of the member 17 to provide a continuous wedge receiving opening 2 as shown in Figure 8, and when thus properly positioned with reference to each other, the combined clamping and locking wedge element C may be inserted in position.

Upon reference to Figure 10 of the drawings, it will be observed that the wedge element C is provided with an abutment foot 22, and a cut away tapering edge portion 23 which provides a clamping edge 24 for engaging with one of the structural members 2, while the clip engaging edge 25 at the opposite side is adapted to slidably engage in the opening formed by the matching of the

knuckles

20, 20 and 21. hen the locking wedge C is driven into position, it maintains the

members

16 and 17 in assembled relation, and by reason of the taper of the members along the knuckle edges thereof, the said wedge will effectively force the members of the clamp outwardly resulting in securing clamping together the parts a: and y.

From the foregoing description and the accompanying drawings it is believed that the manner of applying the present clamp will be apparent, and it is also believed that it will be readily understood by those skilled in the 'art that all forms of the clamp are capable of simple and facile application and adjustment. And, while several forms of the invention are shown and described in the present description and drawings, it will of course be understood that other changes in the form, proportion and minor details of construction may be resorted to without departing from the spirit of the invention or scope of the appended claims.

I claim:

1. A clamp of the class described includplate thereby causing the contraction of the hook portions of the clip.

2. A clamping device including in combination with the members to be joined, a bifurcated clip having oppositely arranged hook portions adapted to engage with one of said members, a clamping plate, and means for causing the said clip and clamping plate to be shifted in opposite directions to force.

the parts to be joined rigidly together.

3. A clamping device including in combination with the members to be joined, a

bifurcated clip having relatively contracto receive a portion of the clip, and means engaging the clip and having an abutting engagement with the clamping element for shiftlng the clip and clamping element in opposite directions.

5. A clamping device including in combination with the members to be joined, a bifurcated clip having relatively contractible means for engaging with one of said members and also having. a shank portion, a clamping element having an opening for receiving the shank of the clip, and means adapted to engage with' the shank of the clip for shifting the clamping plate toward the member engaging end of the clip thereby tocause the relatively contractible means of said clip to grasp one of said members.

6. A clamping device including in combination with the members to be joined, a clip having means for engaging with one of said members and also having a shank portion, a clamping element having a hearing foot at oneend for engaging with said member engaged by the clip while the top posite end thereof is adapted to engage with the other member of the joint, said clamping element also having an opening for recelving the shank portion of the clip, and means adjustablyengaging the shank portion of the clip at one side of the clamping element for forcing the same into position to clamp the members to be joined.

7. A clamping device including in combination with the members to be joined,a clip having hooks at one end for engaging with one of the said members and having a projecting portion adapted to receive a locking device, a clamping element having an opening for receiving the said projecting portion of the clip, and a locking device carried with the said clip and engaging with the clamping element thereby to cause the contraction clip.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

v THOMAS KANE. Witnesses:

C. JLAUTEN. H. E. WHITE.

of the hooks at the end of the