US1924382A

US1924382A - Finishing welt

Info

Publication number: US1924382A
Application number: US574159A
Authority: US
Inventors: Robert C Schemmel
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-11-10
Filing date: 1931-11-10
Publication date: 1933-08-29
Anticipated expiration: 1950-08-29

Description

Aug. 2.9, 1933. R C, SCHEMMEL' 1,924,382

FINISHING WELT Filed Nov. 10, 1931 Patented Aug. 29, 1933 UNTED STATES PATENT Friet Application November 10, 1931 Serial No. 574,159 4 2 claims. (o1. 15s- 184)Y My invention relates to finishing welts and similar trimming strips of the type used in furniture and automobile body building to overlie and conceal the raw meeting edges of covering fabric materials.

The invention contemplates an improvement in finishing wel-ts of the blind nail type and has for an object the provision of such a welt with permanently secured interwoven wire means functioning to maintain the hinged flap of the welt securely down in contact with the base thereof when the welt is applied in operative position.

A further object is to provide a welt of the class indicated in which the wire is interwoven with a textile fabric formed of fibrous threads, the wire and fibrous threads combining to provide a skirt or flange capable of being easily and securely united to a bead ller or core by means of adhesive. v

A further object is to provide a welt of the class described in which the bead filler covering material comprises a woven fabric body having a pair of integrally united skirt portions of r unequal widths which combine to receive a bead filler, the wider skirt being folded around the iilier and adhesively secured to the narrow skirt, which is itself directly secured by adhesive to the ller.

A further object is to provide a simple, inexpensive and compact assembly of materials forming a blind nail finishing welt, including a pliable wire element disposed across the hinge line common to the base and iiap portions of the welt, the wire being adapted to be folded down upon itself around a curve of extremely short radius as distinguished from the curves of longer` radius .used in the welts of the prior art.

Other and further important objects and advantages of the invention will be sufciently apparent from the detailed description hereinafter.

In the drawing which forms part of this r application for Letters Patent, and in which the same reference character designates the same part in the several views,

Figure l is a top plan view of a length of covering fabric showing the body and two skirt portions;

Fig. 2 is a cross sectional View taken on the line 2 2 of Fig. 1;

Fig. 3 is a cross sectional view on an enlarged scale of the fabric shown in Figs. 1 and 2, illustrating the manner in which the bead fillers are associated therewith;

Fig. 4 is a similar cross sectional view of the part shown in Fig. S showing afurther step in the process of assembling the parts;

'Fig 5 is a perspective view with one end in cross section of a completed Welt applied to a 30 support;`

Fig. 6 is a top plan view similar to Fig. l, showing a modified form of covering fabric; and l Fig. '7 is a cross sectional view taken on the 65 line 7 7 of Fig. 6.

The welt includes a base portion adapted to receive nails, tacks or the like for fastening the same in position on a support, and a flap portion, including a bead filler, hinged to the'base 70 portion and adapted to be lifted 'therefrom When the tacks are applied and driven home through the base, and subsequently to be folded down thereupon to cover and conceal the tacks.

Referring now to the drawing, the covering material forming the base and enveloping they bead ller to form the flap comprises a strip of woven threads of cotton or the like disposed in the form of a main body portion l, a relatively narrow skirt 2 anda relatively widev skirt 3. The two skirts branch from the main body along va common line 4. A pliable wire element is woven into the narrow skirt 2 and the adjacent portion of the main body l, thus extending across the line 4 for a purpose hereinafter eX- 8 plained. The wire element is conveniently provided in the form of a continuous length of wire 5 which is folded back and forth upon itself across the line 4 and interwoven securely with the fibrous threads of the skirt 2 and the ad- 90 jacent portion of the main body l.

A relatively large bead ller 6, preferably of half-cylindrical shape, is associated with the covering fabric to provide the bead flap of the 95 welt. As shown in Fig. 3 the filler 6 is received between the two skirts of the covering fabric, with its under surface adhesively secured to the upper surface of the narrow, wire-containing skirt, while the wider skirt, devoid of wire, overlies the upper surface of the filler and has its free vouter margin adhesively secured to the under surface of the narrow skirt 2. 1f desired, adhesive may be employed to secure the major portion of the skirt 3 to the upper surface of 105 the filler 6, but I have found that this additional adhesive is not required, since the bond between the skirt 2 and the filler, in combination with that uniting the skirt 2 and the outer margin of ehe skirt 3, is sufficient to unite the fill entire assembly of both skirts and Vthe filler with great security and permanency.

A distinctive advantage oi the welt which forms the subject or" this application for Letters Patent resides in the'novel association of fibrous threads and metallic wire woven together in the skirt 2, whereby the fibrous thread components and the skirt 2 adapt the skirt to be securely bonded by adhesive to the ller S inY a union which is far superior to any which has been heretofore attainable directly between a bead iiller and wire not associated with iibrous threads. It will be appreciated oi course that the interwoven condition of the wire and the brous threads in the skirt 2 eiectually prevents separation of the wire out of the skirt. The fibrous threads of the skirt 2 4unite through the medium of an additional adhesive coating with the free outer margin of the skirt. The assembly of both skirts and the interposed ller 6 is thus permanently and securely united.

The free outer edge of the main body portion 1 is folded back upon itseli, conveniently around a second and preferably smaller iller 7, to forni a multi-ply base portion 8, through which nails, tacks or equivalent fastening means 9 are adapted to `be passed 'for 'the purpose oi securing the welt to a support l0. The assembly oi ller 6 and

skirts

2 and 3 provides a ilap il which isv hinged to the base S substantially along the line 4. in practice, the lap 1l is -folded down into contact with the base 8 aiter the fastening elements 9 have been driven home therethrough, the wire material serving to maintain the flap and base in contactinfT relation. ,Y

It will be noted that welts constructed in the manner hereinabove described include a pliable wire ply made integral with the welt covering material and consequently not liable to separation therefrom.

In addition, the wire material incorporated in the welt to secure the flap and base in contacting relation is entirely concealed within the welt structure, being located wholly beneath the ilap ll when the welt is in applied condition.

Furthermore, since both ci the folded plies of the wire material underlie the bead iiLer 6, the wire is 'folded down upon itself around a curve 12 of extremely short radius, thus differing from wire-ply-containing welts of the prior art wherein the wire ply is carried. around the upper suriace oi the flap bead ller. lt will be obvious that the fold in the wire of the present invention is adapted to approach the character of a distinct crease and thus to a muohsuperior degree serve to hold the flap tightly down upon the base.

It will be noted also that the integral, onepiece constructionrof the welt covering material permits the assembly of the severalvelements oi the welt without the use of stitching. While a line of stitching may, if desired, be passed through the plural plies of the base, such stitching is not required, the adhesive coating used in the base and on the skirt surfaces ,being suflcient to bond the several parts of the welt together. l

Practice of the modiiied form lci the invention shown in Figs. andl 'l results in a slight economy of the fibrous thread usedvin the fabrication of the covering material, since this modiiication of the invention contemplates terminating the fibrous thread constituent of the skirt 2 short of the edge of the wire material of the skirt. It will be understood that the free outer margin of the wide skirt 3 is adhesively united to the fibrous thread portion of the narrow skirt 2 or Figs. 6 andy 7, in exactly the same manner as shown in the disclosure of the preferred ,form of the invention.

t will be understood that the invention is shown in this application for Letters Patent in certain preferred forms oi embodiment only,

`merely by way oi exemplincation. The invention is capable of embodiment in other'and fur- 100 ther modified forms, and all such modifications to the extent that 'they embody the principles of the invention as pointed out in the appended claims, are to be deemed within the scope and purviewlthereoi.

l claim:

l. A niehing welt comprising a unitary strip oi woven fabric having a main body and havinga relatively wide skirt and a narrow skirt branching from the body along a common line 11D and integrally interwoven with the main body,

a iiller secured between said skirts to provide a Jdep, the nn body the strip being folded over on eli to provide a two-ply base, the iiap being :folded over on the base. and being hinged thereto along the line common to the main body and the two skirts, a layer of pliable wire being woven into the narrow skirt and a portion `only oi the main body adjacent said line.

2. A finishing welt having a twc-ply base and a beaded ilap hinged thereto,` the base comprising a unitary strip oi woven fabric folded upon itself, one oi the two plies being ldivided at its free edge into two branching skirts each integrally interwoven with said ply, one skirt being relatively wide and the other being narrow, a plurality of lengths of pliable wire being woven into the narrow skirt and a narrow adjacent portion oi` the base, said wires crossing the free edge oi the base, and a iiller secured between said skirts and adapted to hinge along the ree edge of vthe base constituting the beaded flap. Y

ROBERT C. sCHEMMEL.