US1517053A - Process of making bag frames - Google Patents

Description

11,517,053 F A FULLER PROCESS QF MAKING BAG FRAMES Filed Oct. 11 1921 ATTO/JEY Patented Nov. 25, 1924.

FRANZ A. FULLER, F NEWARK, NEW JERSEY, ASSIGNOR TO THE 3'. E. MERGOTT G0.

OF NEWARK, NEW JERSEY, A CORPORATION OF DELAWARE.

rnoonss on MAKING BAG FRAMES.

Application filed October 11, 1921.

'1 '0 all whom it may concern:

Be it known that I, FRANZ A. FULLER, a

citizen of the United States, residing in the city of Newark, in the county of Essex and State of New Jersey, have invented a certain new and useful Process of Making Bag F "ames; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others 10 skilled in the art to which it pertains to make, construct, and use the same, reference being had to the accompanying drawings, and to numerals. of reference marked thereon, forming a part of this specification. This invention has reference to improvements in the manufacture of frames for bags and purses, especially for travelling, chatelaines and similar bags.

The object of my invention is to overcome present dificulties in dispensing with the numerous simple means for connecting the pivot members with the main body of the frame section, in order to produce a bag frame with sharp angular corners, by making a frame from one piece of material,

thereby producing a neat, sharp and solid corner angle, free from open joints, and one in which the cracking or puckering of the metal at the corners. of the frame during the process of the manufacture of the same, is

entirely overcome.

This object is attained by the novel design, process, and constructions hereinafter described and shown in the accompanying drawings; forming an essential part of this disclosure, and in which Figure 1 is a fragmentary side view of a channeled blank from which the frame is made.

Figure 2 is a similar View showin a blank after the first corner operation has been completed; and

Figure 3 is a partial side, partial sectional view of a completed frame after the last or finishing operation.

The present invention, as previously stated, relates to an improved process for manufacturing frames for bags and purses, and more particularly for travelling, chatelaine and similar bags. These bag frames are in many instances, U-shaped in cross section so that the material of the bag may be secured within the frame members, and it is desirable in many instances to form the bag frames; with sharp angular corners.

Serial No. 506,967.

For reason of economy and durability it is desirable in many instances to form these frames of hard sheet metal and with the methods heretofore practiced it has been found practically impossible to form bag frames of this character by a bending operation without materially weakening the frame at the corners thereof and causing the metal to pucker at such points whichfrequently causes the bag frame to crack and also presents an unsightly appearance. To obv'ate this objection, the general practice has been to make sharp cornered bag frames of. this character, when hard metal is used, by cutting away a portion of the metal to facilitate bending of the same to form the corners thereof. This method of procedure is objectionable, however, in that a joint must be formed at the corners of the bag frame which not only materially impairs the appearance of the frame but which also opens frequently after the bag has been in use for a short period. The present method enables the formation of a bag frame of this character of hard metal and having sharp angular corners without forming any joints or seams at the corners thereof, the bag frames being formed in such a manner that no puckers or crimps are formed in the side walls thereof at the corners and that the corners thereof after the frame has been bent to its completed form, are not weakened in any way, but are equally as strong as any other portion of the frame.

In describing the process forming a part of my invention, I will simultaneously de scribe the product of the same, so that those skilled in the art to which it pertains, may gain a full knowledge of the process well as of the product.

In the drawing the numeral 10 designates the upper member of a U shaped channel having uniformly saaced parallel sides 11 enclosing a space 12 adapted to receive the edges of the bag material at its mouth or opening.

This blank is then shaped between appropriate dies to form a horizontal bar, generally designated by the numeral from which project parallel sides 1.6 at right angles to the bar, the openings or spaces being turned inward, as shown in Figure 2.

The corners are preferably extended outwardly and upwardly, being bent on axis corresponding to the planes of the center and side members, into arcu ate or similar projections l'l, the inner edges of the channels curving concentrically following the exterior, as at 18, the bending and corner formations being done at a single operation in the dies, which are so arranged as to prevent buckling or winkling the material, thereby thickening the metal of the side walls at the corners.

The next operation completes the frame member" with a. sharpcorner as illustrated in Figure 3' of the drawings by placing the blank illustrated in Figure 2 in a suitable die and subjecting the corners of the blank to a pressing" operation, the dies moving towards each other in the direction indicated by the arrows and which completes the sharp corners and prodi'ic'es a frame, eX- hibiting the highest standardof excellence.

This operation, moves and crowds the niolecnles of the thickened material of the corners illiistrated in Figure 2 into the position indicated by the dotted lines in Figure ,2, thereby producing a" sharp corner which is as strong, if not stronger, than any other portion of the frame.

By' the process described, I am enabled to,

produce a bag frame member which is composed of a single piece of metal, and without the usual open joints and angular connections, and yet, by the exercise of this process,- I am enabled to produce a tame without any waste of material and at the same time, preserve maximum strength at the hitherto weakened points in the frame.

As changes in construction could be made within the scope of the invention, it is intended that all matter contained in the foregoing description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limited sense.

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

The process of forming channeled sheet metal frames consisting in bending the channeled member at an angle to produce arc'uate corners and thereafter pressing the corners inward to form a completed member with sharp corners.

This specification signed and witnesed this sevei'it-h day of October, 1921.

' FRANZ A. FULLER.

Witnesses A. B. UNDERHILL, Fincnii C. FISCHER.

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