US1904543A

US1904543A - Finishing welt

Info

Publication number: US1904543A
Application number: US491771A
Authority: US
Inventors: Robert C Schemmel
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-10-28
Filing date: 1930-10-28
Publication date: 1933-04-18
Anticipated expiration: 1950-04-18

Description

April 18, 1933 R. c. SCHEMMEL. 1,904,543

FINISHING' WELT Filed Oct. 28, 1930 2 Sheets-Sheet `l April 18, 1933. R. C. SCHEMMEL 1,904,543V

FINISHING WELT Filed O'Ct. 28., 1930 2 SheeLS---Sheekl 2 Patented Apr. 18, 1933 OFFICE ROBERT C. SUHEMMEL, F UNION CITY, INDIANA FINISHING- WELT Application led October 28, 1930. Serial No. 491,771.

My invention relates to finishing welts of the type extensively used in the automobile body and furniture industries for Covering the meeting edges of fabrics and in general serving as trimming elements.

My invention relates more particularly to a blind nail type of welt, i. e., a finishing strip having two principal portions, one a tack receiving base, through which nails,

tacks, or analogous fastening means are adapted to be passed to secure the welt in position upon a support, and the other a flap which is hinged to the tack receiving base and adapted to be opened away from the base prior to the tack inserting operation, and afterwards to be folded down into con tacting relation with the base to conceal the tack heads.

One object of my present invention is to y provide a Welt of the character indicated which contains means inherent in the welt itself to maintain the flap permanently in contacting relation with the base.

Another object is to provide a blind nail welt having all the efficiency, durability and attractiveness of the welts of the prior art, which may be manufactured expeditiously and at considerably reduced cost.

More specifically the present inventionY constitutes an improvement in the type of welt covered by my United States Letters Patent No. 1,528,699 issued on March 3, 1925, and contemplates a welt embodying in part a'wire fabric of the type shown in my said patent, and in part also a plain fibrous fabric of the type commonly used in the manufacture of welts.

An especial object of the present invention is to provide a welt having all the efficiency 40 of the welt described in my said prior patent but which may be more economically manufactured.

, To vthis end my present invention conteniplates the manufacture of a weltout of a minimum of the more expensive wire fabric, which is confined to those portions of the welt where the function of the wire fabric is important, the remaining portions of the welt being formed of wireless or plain ii brous fabric.

A further object is to provide a welt which is less bulky and cumbersome than welts in which all the fabric covering contains Wires, so that the subject of the present invention may more readily and neatly be disposed about curves, and may exhibit, when disposed about a transverse curve of relatively short radius, a minimum lof puckering and distortion.

Other and further objects of the present invention `will be suiiciently evident from a consideration of the accompanying drawings and the detailed description hereinafter.

In the drawings. which form part of this application for Letters Patent and in which the same reference character designates the same part in the several views,

Figure l illustrates an initial step in the production of a preferred form of welt made according to the presentv invention;

Fig. 2 illustrates a second step in this ess;

Fig. 3 illustrates a further step;

Fig. 4 is a perspective View Ywith one end in section, of the preferred form of Welt made according to the method shown in Figures l to 3;

Fig. 5 is a perspective view, with one end in section, of a slightly modified form of welt, showing the welt in its opened up condition, ready to receive the fastening tacks;

Figs. 6, 7, 8 and 9 are inverted perspective views, each with one end in section, of certain modifications. Y

Referring now to the drawings and firstto Sheet l thereof, the reference numeral 1 designates a strip of wire fabric, which is substantially identical with that disclosed in my prior Patent No. 1,528,699. That is to say, the strip l consists of a textile fabric procformed in general of woven fibrous threads of cotton or the like, but having certain of the weft threads, i. e., those which extend through the narrow dimension of the strip. formed of a pliable wire 2. This wire may be of copper, annealed iron, or the like, so that the fabric which contains it may be folded transversely across the wires and may be retained in its folded condition by the pliability of the wires. The wires 2 are spaced regularly apart in the fabric by intervening fibrous weft threads. The ratio of wire to fibrous weft threads will depend entirely'upon the stiffness desired in the fabric, and in actual practice may be as one to five or more.

The wire fabric l carries a coating of leatherizing dope or similar finishing so'that the fabric is indistinguishable in appearance from a plain fibrous fabric of similar weight and finish. It is to be understood that the term wire fabric as used in the claims is intended to cover the type of fabric which has just been described, and all equivalents thereof.

The reference numeral 3 designates a plain fibrous fabric, i. e., one which is formed entrelyl of interwoven fibrous threads and contains no wire threads. The fibrous fabric is preferably leatherized t-o conform in appearance to the fabric l, but may if desired be made to contrast therewith by use of a different finishing color, weave or the like. It is to be understood that the term fibrous fabric. used in the claim is intended to cover any suitable welt fabric which is devoid of pliable wire.

The two fabrics are laid together with their longitudinal edges in abutting relation, and are then sewed together by the zigzag stitch 4, as shown in Fig. l. The united fabrics are preferably next given a coating of cement on one surface of each, and a pair of fillers are positioned on the cemented surface. The relatively large, and preferably half round filler 5 is positioned along the free edge of the wire fabric. to which it may be sewed by a line of stitching 6, and a similar, and preferably round filler 7 is laid on the fibrous fabric along a line spaced inwardly slightly from the sewed edge of the fibrous fabric. These fillers may ne of any convenient filler material, such as rubber, twisted paper or the like.

The filler 5 and its adjacent ply of wire fabric are folded over inwardly as shown in Fig. 3 so that the filler 5 may be completely enclosed by the wire fabric.. The free edge of the fibrous fabric is folded over to completely enclose the smaller filler 7 and the' free edge of the fabric is engaged by means of the adhesive coating with the surface of the sewed edge of the wire fabric. A line of stitchin 4 8 is passed through the ycontacting plies o the fabrics 3 andl 1 close the base to conceal the tack heads.

to the filler 7. The flap formed by the filler 5 and its enclosing wire fabric is next folded inwardly as shown in Fig. 4. The parts are so proportioned that this last folding operation brings the free edge of the flap closely adjacent to the inner edge of the bead formed by the filler 7 and its enclosing fabric, as shown in Fig. 4.

It will be appreciated that when the welt is to be applied the flap is lifted from the base to more or less the position shown in Fig. 3, whereupon tacks or the like are passed through the base, and following which the flap is folded down again upon By the term base is meantt-he area of fabric between the hinged edge of the flap and the inner edge of the small filler. It will be appreciated that the pliable wires which extend across the hinging connection serve to maintain the Hap in its open position when the tacks are being inserted, and in itsl closed position when the tacking operation has been completed.

It will also be appreciated that the welt construction which has been just described effects a considerable saving in the quantity of the relatively costly wire cloth required, by limiting the use of the wire cloth to the area extending across the hinging connection between the Hap and bwa.` It will also be appreciated that the construction which has been explained results in minimizing the'number ofV plies employed in the base portion, so that the resulting welt is made relatively thin, compact and flexible, and may be more readily and eflici'entlydisposed in transverse curves of short radius, without objectionable puckering and distortion.

Fie. 5 illustrates a slight modification in which the meeting edges of the two fabrics are united in a lap joint 9 by means of a single line of stitching l0 which passes through three plies of the fabric. In this type of welt the free ed e of the fabric 3 is extended to the line o hinge, and there secured by a line of stitching 1l, soy that thel base is made up of two plies of fabric presenting a finished surface on its inner side.

Fig. 6 shows a modification of Fig. 5. In Fig. 6 fabrics 3 and 1 are united as in Fig. 5, but the free edge of fabric 3 terminates short of the hinging connection between the flap and base, resulting in a slight saving of fibrous fabric 3 and an increase in. the fiexibility of the welt.

Fig. 7 shows a welt which is similar to that of Fig. 6, but in which the fabrics 3 and l are secured` together by a zigzag line of stitching l2 which unites the fabrics in a lap joint.

The welt of Fig. S is a modification in which still less of the expensive wirev fabric l is used. In this form of welt the fabrics 3 and 1 are united in a butt joint 13 by t means of a zigzag line of stitching and the smallerr iller 7 is positioned relatively remotely distant from this line of stitching, so `that the connection 13 betweenA the two fabrios occurs close to the line of hinge. The

free edge of the fabric 3 is extended to overlapthe joint l3, and two lines of stitching 8 and 11 are passed throu h the double `ply base' close to the filler 7 an the line of hinge `10 respectively, to maintain the plies of the l base in permanently associated relation.

y Fig. 9 shows a welt which is similar to that shown in Fig. 8, excepting that inFig. 9. the free edge ofthe fibrous fabric 3 is secured to the wire fabric l a zigzag line y of stitching 14., V t Y It is to be understood that I have shown and described inthis application for Let* i ters Patent my present invention in certain preferred forms of embodiment onlyand V that the disclosure is given merely as an` exemplificationof the invention. Other and f further embodiments of the invention will readily suggest themselves, and all such modications, to theextent that they incorporate the principles of the invention as pointed out in the appended claim are to be deemed within `they scope `and purview 4thereof `30. I-Iavinglthus described my present inventionfwhat I claim and desire to secure by LettersPatent is: i 1 e f A finishing Vwelt including `a yiap filler, a strip" of wire fabric and a strip of fibrous `thread fabric united by a line of stitching toprovide at least one ply of thebase por-v `tion of the welt, said strips extending in opposite directions from the line of stitch- V ing, the fibrous thread strip being folded 4,0 back onitself and secured to ,the base to form an .additional ply thereof, and the wire fabric strip `being folded around the ap filler and secured thereto to provide a t 'ap `hinged to thebase and adapted to be l y; folded.v down' thereupon.

- y In testimony whereof I aiiix my signature. l l

y ROBERT C. SCHEMMEL,

Y (5Dy