US1880756A - Method of and device for stock fitting - Google Patents

Description

Oct. 4, 1932. M. F. BROGAN ,8 ,7

METHOD OF AND DEVICE FOR STOCK FITTING Filed Aug. 10, 1926 Fig.1.

Patented Oct. 4, 1932 UNITED STATES PATENT 'QF MICHAEL :r. BRGGAN, or LAWRENGE, vmssaonusngrrs, assrcuon T UNITED siren MACHINERY conrona rrou, or 'PATERSON, NEW .zrnnsnr, A'oonronArIoNor-nnw JERSEY 7 METHOD OF AND DEVICE FOR STOCK FITTING Application filed August 10, 1926. Serial No. 128,400..

particularly concerned with the fitting of .out-' soles for use in making McKay sewed shoes. In the manufacture of McKay sewed shoes it is customary .to prepare the outsole for attachment to the upper by forming a channel and a channel flap in the tread face side of the sole and cutting into the sole material beneath the channel flap to form a groove to receive the sole attaching stitches. Whilethe results obtained by the practice of this. method are generally satisfactory it sometimes happens, particularly when thin soles are being operated upon, that the cutting of the stitch-receiving groove disadvantageously weakens the sole in the region through which the stitches are to pass. 1

In view of the foregoing, one object of the present invention is to avoid danger of weakening a sole as a result of the formation of a stitch-receiving groove therein. 1

With this object in view, onevfeature .of the invention consists in the provision of a -k-nife for cutting a piece of stock, and means on the knife for pressing a groove in the-surface out by the knife. As herein shown, the groove forming means is designed particularly to form a. stitch-receiving groove within the channel of a shoe sole and to this end it comprises a small projection formed on a channel knife of a type customarily employed in sole channeling machines, said projection being constructed and arranged for indenting or pressing the groove in the channeled portion ofthe sole beneath the channel flap. In

the illustrated machine, :the channeling and 5 ting edge and isadapted :to form-the groove without weakening the sole by the rmoval .of

above indicated,bycompressingorconsolidating the material. and compacting the fibres thereof in the immediate vicinity of the wall ofthe groove. v

Preferably, although not necessarily, the opposite sides of the groove forming projec, tion are tapered or beveled both forwardly toward the cutting edge of the knife and downwardly from the lower face ofthe knife so that the forward portion of the projection somewhat closely resembles the bowof a boat inshape, havinga more or less sharply de fined ridge for initiating the pressing orin- ,denting' action of the projection. Thus the projection is enabled the more readily to embed itself in the ,sole material and to apply arubbing grooverforming pressure thereto.

. In another aspect the invention provides an improved method of grooving sh-0e soles which consists in operating progressively along the mar in of. a sole to form a channel and a channel fiap, and simultaneously grooving the margin of the sole beneath the channel flap without removing material therefrom.

Invention isalso to be. recognized in the provision of a new article of manufacture :COIIlPIlSlIlg a shoe sole having a marg nal groove at ones1de,a flat surface opposite the.

groove at the opposite side .of the sole, and a region between .the grooveand said flat surface in .whiohthe sole material isabnorinal- 1y compacted or consolidated. v

Theinvention will be explained with reference to the accompanying drawing, in which Fig. l is a fragmentary view, partially in invention andillustrating' the operation of the machi-neupon a sole;

Fig. 2 is a detailed view in side elevation and on an enlarged scale of a portion of the .soleiohanneling and grooving device shown infFig. 1-; p

Fig. .3 is a sectional view taken along the line III'III of Fig; 2

Fig. 4: is a bottom'plan view of the device shown in Fig.2; material therefrom'but, on the contrary as Fig. 5 is an end elevational View .of the device; and 6 is a perspective view of a portion of aisole after the sole hasbeen operside elevation and partially n section, of a T ichanneling machine embodying the present 614, granted Oct. 3, 1911, on application of' H. V. WVinter. The lower feed wheel of this machine is indicated at 6, the upper feed wheel at 8, and the edge gage roll at 10. These parts are constructed, arranged and operated as fully described in saidpatent. Secured to a channel knife holder 12 of the usual construction, by means of suitably arranged bolts 14, is a channel knife 16 of the drag cut type. As described in the Letters Patent above referred to the lower feed roll 6 is unyieldingly mounted whilethe upper feed roll, together with the channel knife carrier 12, is yieldingly pressed toward the lower feed roll. The knife 16 is provided with the usual depending cutting blade 18 (Figs; 25). The blade 18 is shaped to provide a fiat 'lower surface 19 and the blade is sharpened at one side to provide-a horizontal cutting edge 20. The machine is adapted to operate upon a sole S, which, as illustrated, is to be fitted for use'in a McKay sewed shoe, and the knife16 is adapted to form a channel and a channel flap such as indicated respectively at 22 and 24 in Fig. 6. Means is also provided on the knife 16 for forming a stitch-receiving groove 26 in the material beneath the channel flap 24:.

For the purposeof formingthe groove 26 in the sole without removing any material from the sole so as to weaken the sole, the knife 16 is made with an integral projection 28 upon the flat lower surface 19 of the knife blade. This projection or groove forming device 28 is located a short distance back of the cutting edge of the knife 16 and is spaced inwardly a short distance from the free extremity ofthe knife blade so as to locate the groove at the proper distance from the base or root of the channel flap. The'projection 28' extends downwardly beyond the lower face 19 of the knife a distance equal to the depth of the groove which is to be formed in thesole. As best shown in Figs. 4 and 5 the opposite sides of the groove forming projection 28 are symmetrically disposed and they are inclined V or beveled both downwardly from the face of the knife blade and forwardly toward the surface 19, the inclined faces of the projection meeting so as to form a more or less sharply defined ridge or forward edge 30 which slopes toward the knife blade and is adapted to v r initiate the indenting action. '60

As a result of this formation of the projection 28 the forward end of the projection moreor less closely resembles in shape the bow of a boat and the projection is thus particularly well adapted for pressing a groove in the sole as the knife '16 operates to cut a channel therein. The

projection functions to form the groove by an indenting or pressing action as distinguished from a cutting or gouging action. The lower feed roll supports the sole unyieldingly and in such a manner as to insure that notwithstanding the indenting action of the projection 28 the surfaceopposite the groove at the flesh side of the sole will be maintained fiat and smooth even if the sole is very thin.

The above described manner of forming the groove has the advantage of abnormally compressing or compactingthe stock in theregion between the groove and the flat surface at the opposite side .of thesole instead of weakening the sole by the removal of material therefrom.

In fact, inasmuch as the material is compacted or consolidated in the vicinity of the groove bythe action of the gro'oving'device the sole may be actually strengthened or toughened in this locality so that additional resistance $35 will be offered to-strains tending to pull the sole attaching stitches through the material of the sole.- Thus this mode of grooving a sole is particularly well adapted for use in connection "with thin soles which might be unduly weakened by the cutting away of material in the-"process of forming the groove in accordance with methods heretofore prac- Having'fully described my invention, what I'claim as new and desire to secure by Letters Patent of the United States is: v A 1'. In a sole-fitting machine, in combination, a channel knife constructed and arranged to form a channel havingone side defined by a plane surface in the body of "the sole, and agrooving member shaped to operate upon said plane surface to make a stitch-recelving groove therein wlthout removing material'from the sole.

- 2. 'In a stock fitting machine, means for "feeding a piece ofstock, and a tool for si- '"m'ultaneously' forming a' channel in the stock and to produce by'pressure' a groove in a previously ungrooved portion ofthe channeled surface. j

"3.In astock fittingmachine, a knife for cutting a piece of stock, meansfor feeding the stock-past the knife, and means on the knife for-pressing, a groove in the surface cut by the knife while the stock is being fed. L-In a channeling machine, mechanism for feedinga shoe sole, and a tool for simultaneously'forming-a channel and press-r. ing a stitch-receiving groove in thechan rfleled portion of the sole as thesole is being ed. 1 1 5. Ina sole channeling machine, in combination, a channel knife, and a grooveforming member constructed and arranged to moldthe material adjacent to a channel cut in a sole by said-knife tomakea stitchforming a channel in a piece of stock, and means constructed and arranged to press a groove in a previously ungrooved side of the channel.

7. A knife for cutting a piece of stock, and means on the knife for pressing a groove in the surface cut by the knife.

8. A channel knife for making a channel and a channel flap in a shoe sole, and a projection on the knife constructed and arranged to form by pressure a groove in the material beneath the channel flap, without removing material from the sole.

9. A channel knife for cutting a, channel in a shoe sole, and a solid projection on the blade of the knife shaped to form a groove in the wall of the channel while the knife is cutting, said projection having tapering sides to facilitate the formation of the groove.

10. A channel knife for cutting a channel ina shoe sole and a projection on'the blade of the knife shaped to form a groove in the wall of the channel While the knife is cutting, said projection having sides inclined both toward the cutting edge of the knife and downwardly from the lower face of-the knife to facilitate the formation of the groove. 7

11. A channel knife for cutting a channel in a shoe sole, and a projection on the blade of the knife shaped to form a groove in the wall of the channel while the knife is cutting, said projection being shaped and arranged to provide a forward edge which slopes toward the knife blade to facilitate the forming of the channel.

12. That improvement in the art of fitting shoe soles which consists in operating progressively along the margin of a sole to form a channel and a channel flap, and forming solely bypressure a groove in the material beneath the channel flap during the progress of the channel forming operation.

13. That improvement in the art of fitting shoe soles which consists in operating progressively along the margin of a soleto form a channel and a channel flap, and simultaneously grooving the margin of the sole beneath the channel flap without removing material therefrom.

14. That improvement in the art of fitting shoe soles which consists in progressively forming a channel and a channel flap in a sole, and applying rubbing pressure to previously ungrooved material at one side of the channel to produce a stitch-receiving groove therein.

In testimony whereof I have signed my name to this specification.

MICHAEL F. BROGAN.

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