US1142119A - Welt laying and attaching machine. - Google Patents

Description

A.'H. PRENZEL. WELT LAYING A-ND ATTACHING MACHINE. APPLICATION FILEDAUGYJTE: 1913. 1,1 1 9., Patented June 8, 191,5.

3 SHEETS-SHEET 1.

H. PRENZEL. WELT LAYING AND ATTACHING MACHINE. APPLICATION FILED Aue.15. 191s.

Patented J 11110 8, 1915.

3 SHEETS-SHEET 2- Al H. PRENZEL.

WELT LAYING AND ATTACHlNG MACHINE. APPLICATION FILED AUG.15. 1913.

1 1423 119., V Patented June 8, 1915.

' 3 SHEETSSHEET 3- iiDAfd H, PRENZEL, F HALIFAX, PENNSYLVANIA, ASSIGNOR TO UNITED SHOE Application filed August 15, 1913.

To all one it may concern I Be it known that I, ADAM H. PREXZl-JL, a citizen of the United States, residing at anew, in the county of Dauphin and State i'ennsylvania, have invented certain new and useful improvements in Vlelt Laying and Attaching Machines; and 1 do hereby declare the following to be a full, clear, and i let description of the invention, such as ill enable others skilled in the art to which it appertains to make and use the same.

illiis invention relates to-welt laying and attaching machines and more particularly to such machines adapted to lay and attach a welt to an outsole before it is incorporated in a shoe.

in the manufacture of some types of shoes, known generally as false Welts, in which the shoe is so constructed as to give the ap- ""1 pearance of being a Goodyear welt although some other method of making it is.-

nsed, piece of welting is attached to the n'iargin of the cutsole on the flesh side or to the lasted ripper, prior to assembling the outsoie and upper. In some of these false Welt shoes the waiting extends merely around the forepart, as in a Goodyear welt shoe, While in otl-iers the welting is continuous extending completely around the sole. In making the latter type of false welt shoe which may he termed a turn welt some diihculty has be n experienced in severing the strip of weaving in such manner that the meeting point on the sole between the two welt ends is inconspicuous The objects of the present invention are to overcome this diliiculty and to insure that a mininnnn amount of Welting is used in at taching a welt on any particular sole.

In accordance with these objects a feature of the invention contemplates the provision, in combination with suitable. devices or mechanism for attaching the waiting to the outsole. of means for supporting the sole and guiding the waiting, and a welt severing device, preferably arranged and operating to sevoi'the welt strip on a bevel. such that the two ends of the portion of the welt at tachr-d to the sole will meet and present to the eye a continuous and unbroken grain surface. I

A fiu'taer feature of the invention con- =euiplatci =c provision of means for inditing to in. operative the time at which the welt strip should be severed in order to CHL'NERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEVT WELT LAYING AND ATTACHING MACHINE.

- Specification of Letters Patent.

- Patented June 8, 1915 Serial No. 784,908.

,use just the amount necessary to produce an exact meeting of the two welt ends and thus avoid waste.

To the accomplishment of these objects and such others as may hereinafter appear, as will readily'bc understood by those skilled in the art, the invention comprises the features and combinations of parts hereinafter described and then particularly pointed out in the appended claims.

In the preferred form of the invention the welting is secured to the outsole by stitching and this form is illustrated in the accompanying drawings, in which:

Figure 1 is a front elevation of a portion of a solo sewing machine embodying the present invention, showing also a sole in po sition on the sole supporting table, and a pioce'of welting being led into position be-' neath the sole to be secured to its flesh side; Fig. 2 is a side elevation of the parts shown in Fig. 1; Fig. 3 is a detailed view, in plan, of the parts forming the present invention, detached from the sole sewing machine, showing also a sole, marked on its grain side, in position to start the welt attaching operation Fig. 4; is a detail, in longitudinal section, showing the mounting of the welt severing knife on the sole support, and its operating mechanism; Fig. 5 is a detail, in longitudinal section, through the adjusting devices for accommodating varying widths of welting and for guiding the sole so as to place the line of fastcnings relatively nearer to or farther from the edge of the sole; and Fig. dis a plan of a turn outsole, having an edge lip cut and upturned, with a continuous welt stitched in the angle between the lip and feather by a sole sewing machine having the present invention incorporated therein.

The machine, in which the present invention has been embodied for the purposes of illustration and explanation, is of thosame general type as that shown and described in Letters Patent of the United States No. 473,870, dated April 26, 1892, to The Goodyear Shoe Machinery Company of Hartford, Connecticut, on an application of Z. T. French and lV. C. Meyer. The curved hook needle 1, the presser foot 2, the awl'3, the awl segment 4, the upright 5 carrying the awl segment and mounted on the feed slide 6, and the feed changing lever 7 may be, and preferably are substantially as in the French and Meyer patent above referred. to. The shank portion 8 of the work support, that is, the portion by which. it is secured. on the machine frame, is the same esin said Letters Patent of the United States hereinbefore referred to, but the Work support itself has heenchanged so as to provide a suitable surface for supporting the flat sole to which the Welt is to be attached and for housing the knife by means of which the strip of Welting is severed. To this end the Work support is enlarged in the form of a rectangular block 9 at the right hand end of which, viewing Fig. 1, there is provided, ex tending in the line of feed, a Welt guide 10 (Figs. 2 and 4) over which there is secured, by means of screws, a plate 1 which forms a fiat table for supporting the sole. The block 9 also provided. with a dovetailed Way 12 (Figs. 1 and 2') extending across the block in line with the needle and swl. the bottom of this Way, at its inner end, is the usual opening 13 (Figs. 8 and 5) for the needle and. owl. Seeted in the Way 12 is a slide 14 (Figs. 1 and 5) having formed therein an aperture 15 above the opening 13 but somewhat wider than said opening, and

provided at its inner end. with a gage 16 for the edge of the sole and welt. Above the slide lei is a. plate 17 (Figs. 1 and 5) edjustable towerd and from the edge gage 1.6 in the doveteiled way. Both the slide 14 end plate 17 are held fest in any position of adjustment in the Way 12 by means of s set screw 18 (Fig. 5). An adjustment of the slide 14: in. the Way 1% permits the line of stitching, or other welt attaching fastenings, to he placed nearer or rarther from the ed of the sole. An adjustment of the plate 17 .in theway 12 varies the width of opening between the late and ed e "see thus me ing care of difierent Widths o weltiiig. The

variation in the Widths of the opening; 13 and aperture 15 permits adjustment of the slide 14%- Without interfering with the operation of? the needle and ewl.

Beneath the sole supporting table 11, and in advance of the ewl and needle, there is mounted on the block 9 a support 19 for the welt severing knife. This support is attee-lied to the underside of the hlocl: 9 by means of screws 20, and its underside, where it projects ehove'the plane of the block 9,

I is utilized to form one side of the doveteiled tion in the bottom of the Welt guide. This guide finger is neverwithdrawn from its slot. To further assist in guiding the l-rn'ife 21in its movement across the welt guide, the support 19 has mounted thereon a. plate '28 (Figs. 1, 2 and 4) the upper edge of this.

plate and the underside of the Work table 11 forming it way in which the knife may slide. In order to actuate the knife its shank is provided with a block 2'. hevin formed therein a ,slot 28 which is engegei by apin 29 on the underside of one end ol? a. centrally pivoted-lever 30, the other end of said lever being elongated'into an opereting handle 31 (Figs. 1, 2 3). The lever 86 is mounted on thesupport 19 by means of a pivot pin 32 and is normally maintained in the osition shown in Figs. 3 end i by means 0 a coiled spring 33 surrounding the pivot of the lever and'heving one end secured to the support 19 and its other end secured to the lever. The movement of the knife 21 toward the left in Fig.

fl, under the influence of the spring 33, is

Conveniently mounted on the frame oi.

the machine is an arm 8% provided etits upper side withe pin 35 beneath which the strip of Welting may be led. from the Welt reel, or other means for supporting it, on its way to the Welt guide if end the stitch-form iiig mechanism. The forward 831501 the armfi is provided with two sole marking devices 36 which are spaced apart a dis-- tense equal to the distance between the zip-- per edge of the lmife blade 25 and the plane of operation of the needle 1 for a "purpose which will he, made clear in connection with tlge descriptio ii oi the operation of the c me.

The resser foot 22, secured to the usual presser "foot lever 37, is provided with an euierged bearing surface, as best shown. in Figs. 1 and 3, for holding the sole upon the table 11 as it is fed through the machine past the stitch-forming mechanism. Projecting forwardly from the presser foot across the sole and in the plane of operation of the stitch-forming inezhssiien, is on indi'ceting W finger 88 for, use in connection with the marking fingers 36 as will now be explained.

In operating the machine to sew a welt completely around a sole, in the manner shown in- Fig. 6, the sole is first brought to the-marking fingers 36and its grain side at any desired place, usually at the inside Y shank, is drawn across these fingers so as to produce two marks on the margin of the sole Such as are indicated by the lines o and Z) (Figs. 3 and 6). These marks a and b are used, in the operation of attaching the welt to the outsole, as the starting mark and finishing mark respectively. To attach the welt, the sole, after being marked, is placed on the work table flesh side. down, as shown in Fig. 3, with the indicating finger 38 in coincidence with the starting mark a on the grain side. The free end of the welt is thrust into the welt guide 10 and positioned below the indicating finger 38, as shown in Fig. l. The machine is then started and the stitching of the welt to the outsole continued, the work being fed by the awl 3 as usual, until the finishing mark 6 reaches a position of coincidence with the indicating finger 38. At this time the starting mark a has reached a position directly over the Welt knife 21 owing to the fact that the marking fingers 36 are spaced apart a distance equal to the distance between the knife and the indicating finger. If, then, the operative draws the handle 31 toward him at this time the welt strip is severed just at the point where enough unattached welting' is left to exactly fill the space between the finishing mark Z) and the welt end which was first secured to the sole. As a result the two ends of the welt meet and snugly fit when the indicating finger 38 again coincides with the starting mark a and the stitching is com pleted.

The knife 21 is preferably placed at an angle as illustrated, so as to produce a beveled cut and form a joint such as is shown at c (Fig. 6) as this type of joint where the two ends overlap is least-noticeable, but it should be understood that it is not essential that a beveled out be made. Those skilled in the art will readily reco ize that by means of the marking and indicating devices, described, an exact meeting of the two welt ends can be obtained whatever the nature of the cut and in severing the welt strip may be.

A distinct advantage in the present machine, and an important feature of the invention, is in so manipulating and severing the welt that in the finished sole the grain side of the welt, which is most conspicuous in the finished shoe, is continuous and unbroken at the joint between the two welt ends.

While the resent invention has been described as em odied in a machine for stitch &

ing the welt to the outsole, it'should be understood that it is not to be limited to attaching the welt by this type of fastening alone, as obviously the invention may be utilized in connection with machines for securing a welt to an outsole by other means than a line of stitches.

The nature and scope of the present invention having been indicated and the preferred embodiment-of the invention having. been specifically described, what is claimed as new is 1. A welt laying and attaching machine, having, in combination, welt attaching mechanism, a sole supporting table, means for feeding a sole and strip of welting past said mechanism, a knife arranged with the plane of its blade at an angle to the face of the sole for severing the welt strip on a bevel. and means for actuating the knife in a right line path transversely of the welt strip to sever it widthwise.

.2. A welt laying and attaching machine, having in combination, Welt attaching mechanism, a sole supporting table, means for feeding a sole and strip of welting beneath the sole past said mechanism, a knife beneath the sole normally retained atone edge of the welt strip, and means for advancing the knife through the Welt strip from edge to edge.

' 3. A welt laying and attaching machine, having, in combination, welt attaching mechanism, a sole supporting table, means for feeding a. sole and strip of welting bencath the sole past said mechanism, a knife blade beneaththe sole angular-1y arranged relatively to the sole face and provided with a cutting edge at one end, for severing the welt strip on a bevel, and means for advancing the knife widthwise through the welt.

4:. A welt laying and attaching machine, having, in combination, welt attaching mechanism, a sole supporting table, a welt guide beneath the table having oppositely disposed transverse slots in its side walls forming a guideway, means for simultaneously feeding a sole on the table and a welt strip through the welt guide, a knife movable acrossthe welt guide in said guideway to sever the welt strip widthwise, and means for operating the knife.

5. A welt laying and attaching machine, having, in, combination, -welt attaching mechanism, a sole supporting table, means for feeding a sole and strip of welting beneath the sole past said mechanism, a knife blade beneath the sole provided with a cutting edge at one end angularly arranged relatively to the sole face and in advance of the welt attaching mechanism for severing the welt stripon a bevel, and means for adil ancing the knife widthwise through the we t.

6. A maehine for laying and attaching a welt completely around sole, having, in combination, welt attaching mechanism, a sole supporting table, means for feeding a sole and strip of Welting past said mechanism, a knife for severing the Welt strip arranged in advance of said mechanism, means under control of the operative for operating said knife, and means for indicating to the operative the time to operate the knife in order to produce an exact meeting of the two ends of the wait attached to the sole.

7. A machine for laying and attaching a welt completely around a sole, having, in combination, Welt attaching mechanism, a sole supporting table, means for feeding a soleand strip of Welting past said mechanism, a knife for severing the welt strip arranged in advance of said mechanism, means under control of the operative for operating said knife, a device for marking the sole, and a finger past which the sole is fed for indicating to the operative, when in coincidence with the mark, the time to operate the knife in order to produce an exact meeting of the two ends oi? the welt attached to the sole.

8. A machine for laying and attaching a welt completely arofjndra sole, having, in combination, welt attzud i'ng mechanism, a sole supporting table, means for feeding a sole and strip of 'Welting past said mecha- 1 nisin a knife for sever-in the Welt stri arranged in advance ofsaid mechanism, means under control of the operative for operating said knife, a device having two marking members spaced apart a distance equal to the distance between the knife and the plane of operation of the Welt attaching inaalie mechanism for marking the sole in two places, and a finger for indicating to the operative the starting position of the sole,

guide beneath the table, knife. arranged in advance of the stitch forming mechanism,

and means for moving the knife widthwise across the welt guide to sever the Welt strip.

10. A machine for laying and attaching a welt completely around a sole, having, in combination, a table for supporting a fiat sole, stitch forming mechanism including an awl for feeding the sole and a strip of welting past said mechanism, a knife arranged in advance of said mechanism for severing the welt, means under control of the operative for-operating said knife, a

presser foot, and means including a finger on the presser foot extending-across the sole for indicating to the operative the time to operate the knife in order to produce an exact meeting of the two ends of the, Welt attached to the sole.

ADAM H. PRENZEL.

Wltnesses LU'Xfl-IER V RYAN, CLAUDE {3;RYAN,

Images