US1724454A - Finishing welt - Google Patents

Description

Aug. 13, 1929. s. H. CLARK K 1,724,454

FINISHING WELT Filed Deo. 12, 1928 me/nto@ Patented, Aug. i3, ieee.,

d UNITED STEWT i: t. 1.

Application filed December la,

My invent-ion relates to welts, gimps and bindings, but more particularly to finishing welts, used primarily for trimming automobiles, both upon their exterior and interior surfaces, wherever a bindingy or tape-like covering strip is required or desired, for overlapping seams, or otherwise concealing raw edges of the trim. It is applicable also to various more or less analogous uses, such as the trimming, finishing and ornamentat-ion of furniture for example, and is of the blind nail or concealed nail type of welt as exemplified by various United States pat ents, including that Numbered 1,226,600, is-

sued May 15, 1917,-to Robert C. Schemmel,

of Union City, Indiana.

rlhe present. invention, in its broadest sense employse body port-ion or core of resilient material and of unitary formation,

such as rubber or other flexible substances, divided by a side kerf into a base and a flap portion capable of automatically resuming their normal close together relation after they have been momentarily deformed for the passing of fastening means through the base, and in addition contemplates covering means for suitably ornamenting the core or body portion in harmonious accord with the upholstery of the automobile or other vehicle in process of manufacture or repairs.

The invention therefore has for an object the-- production of finishing welt suitable for blind nailing consist-ing of two elements only, that is to say, a resilient body portion or core and an enclosing cover or envelope which follows the contour of said bod This invention has for a further object the production of a finishing welt which is extremely economical in cost of manufacture, eiiicient in its use and operation, and attractive in appearance. lVith the foregoing and other objects in view, the invention will be hereinafter particularly described and later pointed out by the lclaims following.

In the accompanying drawings which form part -of this application for Letters Patent, and whereon corresponding numerals indicate like parts in theseveral views:

` Figure l is a view in` perspective of a small section of welt detached;

Figure 2 is a transverse sectional view of the welt in the process of attachment, being open for reception of an attaching tack or Serial No. ,518.

nail whereby it is secured in operative position;

Figure '3 is also a transverse .cross sectional view showing the welt applied; and

Figure 4 is one of many modied forms of this welt detached.

Reference had to the drawings and numerals' thereon, 1 indicates the core of my lmproved form of welt, preferably made of rubber, quickly and cheaply extruded from a suitable steel die. The core 1 however, may be made om other and any lem'ble material, capable of being deformed as indicated by Figure 2, for purposes of receiving fastening tacks 2, and of then automatically resuming its closed and normal position, as indicated by Figure 3, thus concealing the tack 2 by which secured.

rlhe body of the welt, as clearly shown in the accompanying drawings, comprises a core kerfed at one side to provide a base portion 3, merging into a continuous overlying iap 4 of unitary construction, havlng at the bottom of the kerf where these two portions intersect a longitudinal continuous pocket 5 designed and adapted to facilitate the hinging of Hap 4 upon base 3.

outer covering 6 for the body' 1 is provided, which follows the surfafze coniiguration of elements 3 and 4, completely` enveloping them as shown, and this covering-may be of leather, imitation leather, or of any suitable fabric best suited'to har-' monize with upholstery of the vehicle., or for the particular job upon which `the welt is to be used.

ln one 'embodiment of the invention, as shown by Figures 1, 2 and 3 of the drawings, a relatively small longitudinal and continuous side bead 7 is employed adjacent to which the overlapping and tack concealing flap 4 abutswhen in its closed and normal position as shown.

The said Hap 4 may obviously be of any desired cross sectional form. It may be merely a. ,flat flap doubled upon a base 3 \of like fom, or preferably of a half round shape as 'shown, but in any event connected at one longitudinal edge which lconstitutes a hinge element, to permit the Hap 4 during introduction of ,the fastening tacks 2.

This being substantially the construction of my invention, its use and'operation are so self-evident that a detailed description thereof is hardl required. It will be noted however, that ap 4 automatically resumes its normal closed position, as indicated by Figures 1 and 3, after being forcibly lifted or deformed as indicated by Figure 2, for the introduction of tacks 2, or other fastening means, and that during this operation the continuous longitudinal weakening groove 5 greatly facilitates this hinge action.

Figure 4 represents' a slightly modified form of the present invention wherein the principle of operation is the same, and wherein the longitudinal bead 7 is omitted, in other respects this construction being the same -as that hereinbefore described.

1. A finishing welt including a resilient core kerfed inwardly at a side thereof to provide a base and an upper iap normally in closed `yrelation but deformable to allow fastening -means to be passed through the base, the resilience of the core being sufcient to cause the flap to spring back to its normally closed relation with the base and thereby cover and conceal the fastening means when said flap is released after completion of the fastening operation. Y 2. A finishing welt including a resilien core of unitary construction, substantially half round in section and kerfed at a side thereof to provide a base and an upper ap normally in closed relation but deformable to allow fastening means to be passed through the base, the resilience of the core being sulicient to cause the flap to spring back to its normally closed relation with the with a covering of flexible material encasing the core, the longitudinal edges of said covering being concealed `within the kerf.

4. A finishing welt including a resilient core having a substantiallyplane bottom surface and a curved upper surface, said' core being kerfed -inwardly from a side thereof in aplane parallel with its bottom 'base portion and a flap portion normally in closed relation but adapted to be spread apart forthe insertion of fastening means thro h the base portion.

surface whereby the core is divided into a In like manner other and various modi- 5. finishing welt including a resilient"v core having a substantially plane bottom surface and a curved upper surface, said core being provided with a kerf extending inwardly from one side thereof in a plane substantially parallel'with the bottom sur- 'face of the core, whereby the core is divided into a base portion and a flap portion, in combination with a covering of flexible niaterial encasing the core and terminatfgig in longitudinal edges within the kerf.

A finishing welt including a resilient core kerfed inwardly at a side thereof to divide the core into a base portion and a fiap portion, each-provided with an oppositely disposed flat surface, the resilience of the core being sufficient to allow saidrportions to be sprung apart to enableea headed fastening tack to be passed through the base portion and then to spring together when released to cause said fiat surfaces to bear against and conceal the head of said fastening tack.

lIii testimony whereof I affix my signature.

STEWART HARVEY CLARK.

Images