US2621349A - Process of making slip lasted shoes - Google Patents

Description

Dec. 16, 1952 H, BlNDER 2,621,349

PROCESS 0F MAKiNG SLIP LASTED SHOES Filed Nov. 14, 1950 INVENTOR Patented Dec. 16, 1952 PROCESS OF MAKING SLIP LASTED SHOES Hyman Binder, Boston, Mass., assignor to All Time Footwear Mfg. 00., Manchester, N. H., a corporation of Massachusetts Application November 14, 1950, Serial No. 195,693

2 Claims. 1

-This invention relates to the manufacture of slip lasted shoes and comprises a novel construction and a novel shoemaking process for producin shoes of that type which presentthe appearance of a platform shoe having its margin covered with a folded binding strip or presenting a socalled mudguard eiTect. The construction and process of my invention present decided advantages in economy of manufacture by simplifying the shoemaking operations to a striking degree, and eliminating or simplifying some of the operations which have heretofore required a high degree of skill on the part of the operator.

Going more into detail, the process of my invention is characterized by the steps of adhesively attaching to the upright marginal walls of the lasted upper a pre-formed binding strip presenting a folded upper edge which is disposed contiguous to the upper, and a free margin which extends beyond the outer face of the sock lining, adhesively securing the said free margin to the outer or exposed face of the sock lining and then covering it by adhesively attaching an outsole to the shoe bottom.

Heretofore it has been the practice to stitch a binding strip together with the margin of the upper to the margin of the sock lining, then lay a platform sole on the shoe bottom and subsequently fold the binding strip over the margin of the platform sole in a cover lastingoperation. This cover lasting operation, which requires considerable skill, is now by my invention entirely eliminated. The desired folded edge effect is secured in the pre-formed binding strip which comes to the shoe manufacturer as a..complete article already for immediate application. It will be apparent that the edge of thebinding strip may be folded very much more rapidly and acourately in strip formation than it can possibly be formed in a cover lasting operation "in which one edge of the binding strip is already permanently attached to the upper and in which the folding operation depends in a large measure on the accurate shape and location of the platform which it is to enclose. Moreover, in accordance with my novel process the shoemaker is at no time hampered by a binding strip hanging upon the upper. An even more important saving is effected by the present invention in that it entirely eliminates the expense of aplatform sole while reproducing the effect of its presence in every detail.

These and other features of the invention will be best understood and appreciated from the following description of a preferredmanner'of carrying out my novel process in the production of a typical shoe, all as shown in the accompanying drawings in which:

Fig. 1 is a view in perspective of the finished shoe,

Fig. 2 is a view in elevation illustrating th step of applying the binding strip,

Fig. 3 is a plan view of the finished shoe bottom showing the outsole as broken away,

Fig. 4 is a view in perspective on anenlarged scale of the-binding strip, and

Fig. 5 is a fragmentary sectional view through the forepart of the shoe. i

In the manufacture of slip lasted shoes it is customary to stitch the margin of the upper [0 to the edge of a sock lining l l by a lin of stitching [2 which may be formed by a straight needle dry thread sewin machine.- The process of my invention follows these steps with the sole exception that the outer surface of the upper is roughened preferably by skiving in a marginal zone l3, as shown in Fig. 2, for the purpose of improving the adhesive bond to be formed subsequently with the binding strip. When the upper and the sock lining have been united in this manner, the last I! is inserted and the shoe is completed in so far as the lasting operation.

The binding strip employed in carrying out my invention is best shown in Fig. 4.] It comprises acontinuous strip l5 of upper leather, or of suitable fabric, or plastic material uniformly folded alon its upper edge 16 and having a textile reinforcing tape I! which is adhesively secured to the inner face of the binding strip as a lining and folded within the upper edge of the strip. The exposed inner face of the strip and of the reinforcing tape is provided with an adhesive coating preferably of pressure sensitive composition. This pro-formed binding strip is suppliedto the shoe manufacturer by the yard in condition for immediate use.

The binding strip may be applied to the lasted shoe as suggested in Fig. 2, the shoe being held in inverted position and the skived or roughened zone l3 having been first coated with'suitable adhesive. Startin at a point adjacent to the inside shank, the operator has merely to locate properly one end of the binding strip l5 and then progressively apply it to the upright marginal wall of. the upper with the folded edge It lying against the surface of the upper and with the free edge of the strip'projecting upwardly a substantially uniform distance above the upper face of-thesock lining ll. Fig. 2 represents a shoe with the binding strip l'5 partially applied in this manner. It shows the skived and adhesive coated zone i 3 on the side of the upper facing observer and the projecting free margin of the binding strip as already aflixed to the side of the shoe remote from the observer. It will be apparent that the operation of applying the binding strip may be very simply and accurately carried out and that the adhesiv -bond will be formed progressively by the merepressure of the operators fingers.

The binding strip is cut so that its ends may be brought into butting relation. Preferably and as herein shown, a cover tab It, also coated with adhesive, may be stapled to the marginof the upper as indicated in Fig. 2, This. tab may serve. as a match mark to indicate the initial point of contact for the binding strip, and after the binding strip has been layed, the tab is folded to cover the line of the joint.

After the binding strip has been completely applied as. above explainechits free edge is. merely wipedin over the bottom of the sock lining H to form an inturned flange I5 and. this is. adhesively and permanently united to the outer face of the sock lining. This step is suggested in. Fig. 3 in which it will be seen that the cover tab I8 is also wrapped inwardly and adhesively secured to the socklining over the joint in-the binding strip [-5. Finally, the shoe. is completed by laying and attaching an outsole l9. Usually this is incorporated in the shoe. bottom by the well-known "Compo" process of cement vattach ment under adequate pressure and time,

Having thus disclosed my invention what I claim as new and. desire to secure by Letters Patentis-z 1.. The process of making slip lasted shoes which. includes. the steps of roughing the outer marginal surface of an upper, stitching the upper to the margin of a sock lining, inserting a last in the upper, adhesively attaching to the upright marginal roughened wall of the upper while supported by the last a pre-formed binding strip presenting a folded upper edge, which is disposed contiguous to the upper, and a free margin which extends beyond the outer face of the. sock lining, adhesively securin said free margin to the sock lining and then covering it by adhesively attaching an outsole to the shoe bottom.

2. The process of making slip lasted shoes which includes the steps of stitching the margin of an upper to. the edge of a sock lining. fastening a cover-tabto the margin of the upper, in-

serting a'last in the upper, adhesively attaching to. the, upright side wall of the upper a preformed binding strip presenting a folded upper edge adjacent to the upper and a lower edge projecting beyond the sock, lining, turning the lower edge. in .overthe outer face of. the sock lining, folding they cover tab, over. they joint inthe-binding, strip, and-attaching anloutsole to the. shoe bottom.

HYMAN BINDER.

REFERENCES CITED.

The following references are of record'in the file of this patent:

UNITED STATES PATENTS- Number Name, Date.

,1,83l,349 Evans Nov. 10, 1931 1,937,074, Vicente. Nov.. 28, 1933 2,409,892. Becker -i Oct.. 22,. 1946 2,526,925 Atlas Oct.. 24, .1950 2,526,926 Atlas Oct, 24, 1950

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