US1843087A

US1843087A - Piping and the like

Info

Publication number: US1843087A
Application number: US460160A
Authority: US
Inventors: Edward B Luitwieler
Original assignee: American Stay Co
Current assignee: American Stay Co
Priority date: 1930-06-10
Filing date: 1930-06-10
Publication date: 1932-01-26
Anticipated expiration: 1949-01-26

Description

Jan. 26, 1932. E. la` I UITWILER PLPING AND THE LIK'E A Filed June 1o, 195o by@ @5% M7 Y Patented Jan. 26, 1932 UNITED sTATEs PATENT OFFICE EDWARD B. LU'ITWIELER, OF MALDEN, MASSACHUSETTS, ASSIGNOR TO AMERICAN STAY COMPANY, F EAST BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS PTPING AND THE LIKE Application led .Tune 10,

My invention relates to piping and similar material commonly employed for purposes of ornamentation, for example, ornamenting the edges of the uppers of shoes at the shoe openi g. f

The invention will be best understood from the following description when read in the light of the accompanying drawings, while the scope of the invention will be more particularly pointed out in the appended claims.

In the drawings Figs. 1 and 2 schematically represent one form of apparatus employed for practice of the method according to the invention;

Fig.3 is a plan of a strip of flexible material illustrating certain of the steps of the method performed by the apparatus according toFig.' 1;

Fig. 4 is a section onthe line 4 4 of Fig. 3;

Fig. 5 is a plan of the strip illustrating the subsequent operations vperformed thereon by the apparatus according to Fig. 2; and

Fig. 6 is a section on the line 6 6 of Fig. 5.

The piping made according to the invention may take various forms, for example, that indicated at the right hand side of Fig. 5 which in connection with Fig. 6 shows the piping as comprising a strip 1 of flexible material having one edge portion 3 thereof folded over and preferably cemented or otherwise secured to the body of the strip, while the other edge portion is serrated as indicated at 5, these serrations permitting the strip to be bent without buckling when Iitted to the article to which it is applied.

Preferably, in forming the piping a strip 7 of leather or other flexible material is fed through a double edge folder indicated schematically at 9 in Fig. 1 to fold the opposite edge portions 3 of the strip as indicated at the right hand side of Fig. 3 taken in connection with Fig. 4. The folds 3 may be secured to thebody of the strip in any convenient manner, but preferably, for a purpose hereinafter described, are cemented thereto by use of a Water insoluble cement, such as rubber dissolved in a volatile solvent, which may be applied to the surface of the strip prior to assing through the double edge folder.

erein, for applying the cement to the strip 1930.A serial No. 460,160,

the latter is shown as passing over a stationary surface 11 (Fig. l) with the opposite side in wiping contact with a known form of cement applier and spreader 13. After leaving the folder 9 the strip may be guided over suitable rolls 15 'to expose a considerable length of it to the air so as to permit the cement to dry and harden.

rIhe folded strip 17 preferably is then coated at the folded side thereof witha cernentitious material which when dry is nontacky, but which can be readily rendered adhesive by moistening it with water. cementitious material may be applied by use of the apparatus schematically indicated in Fig. 2, in which the strip 17 is passed over a stationary surface 19 with its opposite side in wiping contact with a known form of cement applier and spreader 21, after which the strip is passed over the rolls 23 to permit it tofdry, whereupon it passes through the serrating rolls 25 which act to sever the halves of the sheet along a serrated line 27 between the folds 3 as indicated in Fig. 5 to form two finished strips.

Preferably, the cementitious material applied to the strip by the applier and spreader 21 is pliable so as not to flake ofi' when the strip is serrated or when the finished piping is bent in being applied to the article in connection with which it is used. Also the material preferably when dry has no traces of tackiness, so that it may readily be Wound on spools without the use of protective layers of gauze for preventing the layers of piping adhering to each other. I have found that such a glue may be prepared by adding glycerin to bone glue, a satisfactory example of the composition of this glue being equal parts by weight of bone glue and water with an amount of glycerin equal to 10% the Weight of the glue. This glue is liquid at about 12()o F., at which temperature it may be applied to the strip, and when cold it forms an extremely hard non-tacky layer on the strip vand may be rendered adhesive by moistening it with water, and at the same time when hard is extremely pliable. The glue described, in common with all or most other water soluble glues, gums and the like, has

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the property when dry of forming a quick drying adhesive when moistened with water, due largely to the fact that such substances are hydroscopic, and this property is retained when the glue is compounded as above specified. In this connection it will be observed that by use of rubber cement for securing the folds to the body of the strip any possibility of loosening the folds when the glue is applied, or when the glue is softened by moistening it with Water, is effectively avoided.

It will be understood that wide deviations may be made from the forms of .the invention herein described without departing from the spirit of the invention.

Claims:

1. Piping comprising a strip of exible material one edge of which is folded over and cemented to the body of said strip with water insoluble cement and the other edge of which is so formed as to render said strip freely bendable laterally, said strip having on the side thereof on which the fold lies a layer of pliable non-tacky cementitious material capable of being made adhesive when moistened with water. t

2. Piping comprising a strip of iexible material one edge portion of which is folded over and cemented to the body of said strip with water insoluble cement and the other edge portion of which is so formed as to render said strip freely bendable laterally, said strip having on'the so formed portion thereof ,a layer of pliable non-tacky cementitious material capable' yof being made adhesive when moistened with water. 3. The method of making piping which comprises applying a rubber cement to one side of a strip of flexible material and folding the edge portions thereof'against said side, whereby to secure said edge'portions to the body of the strip, coating the folded strip on the side thereof on which the folds' lie with hot, quick drying, water soluble glue, and, upon drying of the latter, splitting the strip longitudinally thereof along a serrated line between the folded edge portions thereof. y

4. The method of making piping which comprises applying a water insoluble cement to one side of a strip of flexible material and folding the edge portions thereof against said side, whereby to secure said edge portions to the body of the strip, lcoating the folded stripon the side thereof on which the folds lie with quick drying, water soluble glue, and

EDWARD B. LUITWIELER.

upon drying of the latter, operating upon the strip between the folded edge portions thereof to divide the strip into two strips freelyk bendable laterally.

5. Piping comprising a strip of flexiblel material one edge portion of which is folded over and cemented to the body of said strip with water insoluble cement and the other edge portion of which is so formed as to render said strip freely bendable laterally, said