US1247187A - Clamp for quilting-frames. - Google Patents

Description

F. M. WARREN,

CtAMPFOR QUILTING FRAMES. APPLICATION FILED JUNE 21.1916- 1,2%7,187. Patented N0v.'20,1917. I

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FRANCIS MARION WARREN, or noLnorIo, ALABAMA.

CLAMP FOR QUILTING-FRAMES.

' Specification of Letters Patent.

Patented Nov.'20, 1917.

Application filed June 27, 1916. Serial No. 106,208;

To all whom it may concern Be it known that I, FRANCIS M. WARREN, a citizen of the United States, and resident of Eclectic, in the county of Elmore and State of Alabama, have invented a certain new and useful Improvement in Clamps for Quilting-Frames, of which the following is a specification.

My present invention relates to frames used in stretching fabric, such as in quilting or stretching curtains, and more particularly to an improved clamp for holding the longitudinal and transverse frame members in rigid adjusted positions.

The principal objects of my invention are to provide a clamp of the character described, which will effectively hold the frame members in rigid engagement one with another, and in such a manner as to enable the user to quickly make adjustments, such as rolling the fabric upon one of the transverse members, or move said transverse member toward the end portion of the longitudinal member when stretching curtains; and, to provide clamps of the character described which present no sharp edges or sharp projections belowrthe lower frame edges. In this connection, serious accidents have resulted when pins or other elements now in common use, have been used to hold the frame members in adjusted position, such elements projecting below the bottom frame members, where they are apt to be engaged by children passing beneath said frame, or the hands of the operators, when quilting near the abut-ting portions of the frame members. These pins or other elements, being out of the normal line of vision, are dangerous devices, and it is one of the principal objects of my invention to provide a clamp, which when used, will avoid such accidents.

Other objects of my invention are to provide clamps of the character described which may be used with common stock material, such as scantlings, and which require no grooving, boring, or other specific workings; and, clamps which are inexpensive to manufacture, efiective, and durable.

Further objects of my invention will appear in the following detailed description, taken in connection with the accompanying drawing, forming a part of this specification, and in which drawing:

Figure 1 is a perspective view of the end portions of the frame members, showing a clamp constructed according to my invention applied thereto.

Fig. 2 is a central longitudinal sectional view through the clamp and the abutting frame members.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2, looking in the direction of the arrow.

In the drawing, where similar characters refer to similar parts throughout the views,

A designates a longitudinal frame member;

B a transverse member; and C, a clamp constructed according to my invention, embodying a member I D embracing frame member A, a member E engaging the upper face of frame member B, as well as the upper face of frame member A, and F means for clamping members D and E together.

As to the frame members A and B, it is to be observed that they require no grooves or bores, but may be more rails or scantlings of any practical dimensions.

Referring first to the clamp member ,0, it includes a body 4 adapted to embrace the member A, and in the example shown, is V may be formed integral with body 4, if de-' sired.

With reference to clamp member E, it is preferably formed of an elongated strip of metal formed to provide a main body portion 10 and downwardly extending angular end portions 11 and 12. It is preferred to,

form member E of yieldable metal in order that the body 10 may be clamped in tight engagement with the upper face of frame member B, as hereinafter described. The end portion 12 is provided with a plurality of teeth 13 adapted to engage in the upper face of member A, and lugs 14 may be provided extending downwardly from end por tion 12, with the teeth 13 therebetween, said lugs to retain body 10 longitudinally of frame member A. The end portion 11 is disposed laterally of frame member B, and serves to hold said member adjacent the clamp member D.

The body 10 is provided with a perforation 15 through which the stem 9 extends, said stem, in combination with a nut 16, comprising the means F for coupling and drawing the clamp members D and E together.

In assembling the clamp into operative relation to the frame members A and B, the clamp member l) is first slipped upon the end portion of member A, and nut 16 raised su'liiciently to permit of the insertion of frame member B below body 10 of clamp member E and into engagement with clamp member D. The nut 16 is then turned tightly into engagement with the upper face of body 10, which causes the teeth 13 to engage in the upper face of frame member A and draw the body 10 into close engagement with the upper face of frame member B. When adjustment is desired, the operator has merely to loosen nut 16 and slide the clamp, together with frame member B longitudinally of member A. In this connection, the end portion 11 serves to carry member B with the clamp and movement may be imparted to the clamp, or to the member B, and all of the parts move in unison. After the desired adjustment has been obtained, the nut 16 is again turned tight. If it is desired to wind fabric upon the frame member B, the operator has merely to raise nut 16 suiiiciently to permit of removal of the clamp member from operative relation to frame member B and the latter may then be rotated, or the nut 16 may be moved sutficiently to permit of rotation of frame member B beneath the body 10.

Changes in details may be made without departing from the spirit or scope of my invention; but,

I claim 1. A clamp of the character described, comprising in combination, a collar adapted to encircle a longitudinal member, an upright screw-threaded stem projecting from said collar, a yieldable .elongated plate adapted for engagement at one end across a transverse member at one side of the collar and provided with downwardly extending angular end portions projecting in the same direction, one of said end portions being provided with teeth for engagement with said longitudinal member at the opposite side of the collar and the other end portion being adapted to engage and hold said transverse member, said plate being perforated intermediate its ends to receive the said stem, and a nut for said stem to bind the plate and the collar against said members.

2. A clamp for crossed-members comprising a collar adapted to engage the lower member and having an upwardly extending stein, an elongated plate apertured inter mediate its ends to receive said stem and adapted for engagement at one end over the upper member at one side of the collar and having a clown-turned opposite end pro vided with teeth adapted to engage the lower member in spaced relation to the opposite side of the collar and further provided with depending lugs at the opposite sides of the teeth to engage the opposite sides of the lower member and prevent the lateral displacement of the plate, and a nut on said stem for drawing the collar and plate together to bind the opposite ends of the latter against said members.

3. A clamp for crossed-members comprising a plate provided with a downturned end having teeth to engage the lower member and provided with depending lugs at the opposite sides of the teeth for engagement with the lower member to prevent the lateral displacement of the plate, said plate being provided with a downturned portion at its opposite end adapted to engage over the upper member, and a clamping device carried by the lower member adjacent to said opposite end of the plate and engaging the latter thereat to swing the free end of the plate and bind it against said upper member.

FRANCIS MARION WARREN.

t'lopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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