US963761A

US963761A - Sole-sewing machine.

Info

Publication number: US963761A
Application number: US41035008A
Authority: US
Inventors: John B Hadaway
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1908-01-11
Filing date: 1908-01-11
Publication date: 1910-07-12
Anticipated expiration: 1927-07-12

Description

J. B. HADAWAY.

SOLE. SEWING MACHINE.

I APPLIOATION FILED JAN. 11, 1908.

963,761. g Patented July 12, 1910.

minesses: H [naenfbrv W W 7 J. B. HADAWAY. SOLE SEWING MAGHINE.

APPLICATION FILED JAN.11, 1908.

Patented July 12, 1910.

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NITE STATES PATENT orricn.

JOHN B. HAIDAWAY, OF BROCKTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

soLn-snwlne MACHINE.

Specification of Letters Patent.

Patented July 12, 1910.

' the following to be a full clear, and exact ment for sole sewing machines by which a description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to an attachstitch-receiving groove or channel may be cut in the upper surface of the welt in advance of the needle so that the stitches which secure the outsole and Welt can be sunk below the upper surface of the welt at the fore part of the shoe, and the subsequent operation of forming ornamental indentations on the welt can be performed by an ordinary indenting Wheel Without danger of injuring the stitches of the seam. Welt channeling attachments of this character as heretofore constructed have been provided with a chan-, neling knife which during its operation upon the sole is held in fixed position above the surface of the Work support and the channel has been cut by the movement of the Welt against the stationary knife during the feed of the shoe. During the feed the work is held but lightly against the Work support and variations in the depth of the groove cut' by the channeling knife are therefore liable to occurlgl-1 The resistance offered by the stationary ife also puts additional and objectionable strain upon the feeding devices.

It is accordingly an object of the present invention to provide a welt channelin attachment having its parts so constructe and arranged that the channel may be uniformly and accurately cut, thus insuring the proper sinking of the seam below the surface of the Welt with a' minimum depth of cut and resulting weakening of the welt.

A further object is to provide a channeling attachment by which the Welt may be channeled without putting additional and objectionable strain upon the feeding devices.

With these objects in view one of the priniipal features of the present invention contemplates so operating the channeling knife that it moves with thework during the feed and-in the opposite direction during the intervals between the feeding movements of the work. The channeling knife is preferably thus operated by mounting it upon the feed slide of the machine to which the attachment is applied and so arranging it that it may be projected above the surface of the work support in advance of and in alinement with the needle. ,lVith the knife thus mounted it will move forwardwith the welt during the feed of the work so that it will put no strain upon the feeding devices at this time, and during the return stroke of the feed slide the knife will act to cut the channel in the welt. At this time the work is held firmly clamped against the upper surfacerof the work support so that the surface of the welt is accurately and firmly positioned against the work support and the channel will therefore be accurately cut to a uniform depth during each return stroke of the feed slide. This manner of mounting the channeling knife also enables the knife to be rigidly supported comparatively close to the cutting point so that there is no danger that the knife support Will spring or yield during the cutting and cause an inaccurate forming of the channel. The cutter may also be arranged to work within the usual slot formed in the work support for the passage of the needle and awl so that the welt is accurately supported and positioned on opposite sides of the knife, thus contributing to the uniform action of the knife upon the welt.

The channeling knife maybe secured on the feed slide in any suitable manner so far as the broader aspects of theinvention are concerned. It is preferred however, to so mount the knife, that it may be withdrawn below or projected above tlie'surface of the work support, and to so connect the knife I carrier with the device for operating the gage which is'brouglrt intonaction in sew ing about the forepart' of the shoethat the kmfewill be projected above the work sup port. when this gage is moved into operative" position, and will be withdrawn below the uppersurface of the work support when; this age is withdrawn. a a c The! invention will bereadily understood from an inspection of the accompanying drawingsyin Which Figure 1 shows a front elevation of the feed slide of a shoe sewing machine with the present intention applied thereto; Fig. 2 is l a plan view partly in section of the'mechanism shown in Fig. 1, together with portions of .the shoe sewing machine; Fig. 3 is an .end elevation partly in section of the mechanism shown in Fig. 1, looking toward the right, the awl segment being removed;.and Fig. 4 is a perspectiveview of the channeling knife.

As shown inthe drawings the invention is applied to a machine such as disclosed in my Patent No. 704,458, dated, July 8, 1902, to which referencemay be had for a detail description .of the constr'uction and mode of operation of the parts which are not hereinafter specifically described.

The curved hook needle 1, the anal seg ment 2, the edge gage 3, the feed slide 4, the lever 5 for adjusting the feed and moving the edge gage 3 into and out of position to guide the work, are all constructed, a r an ed and operate in the manner fully disclosed in the patent above referred to. The work support (5 of the usual construction, and is provided with a slot 7 throu h which the awl and needle work during the sewing operation, the upper surface of the work sup port on opposite sides of the slot being in the same plane, so that the welt is accurately supported on opposite. sides of the slot.

The present invention is incorporated in the machine by mounting a channeling knife 8 upon the feed slide 4 and arranging the knife so that it may be projected up through the slot 7 in the work support into position where it will act during the return move-,

ment of the feed to cut a channel in the face of the welt, the depth of which will depend upon the extent to which the knife projects above the upper surface of the work support.

The channeling knife 8 is formed on the outer upturned end of a knife arm 9 which is provided with a base 10 as clearly shown in Fig. 4-. The base of the knife arm is secured to the upper end of a slide 11 which is mounted in suitable guideways formed in the standard 12 of the feed slide. The rear surface ofthe base 10 is recessed at 13 to receive a guiding rib formed on the upper end of the slide 11, and the knife arm is adiistably sec-.u'ed to the slide by a clamping screw lt nassing thiough a slot 15 in the base of the knife arm, By meansof the clamping screw and slot the knife may be adjusted vertically toyary the depth of the channel cut thereby. and when adjusted the knife arm is held tirmly on the slide 11 by the rib engaging the recess 13. The upper end of the slide 11 is arranged back of and adjacent to the work support soIt-hat the knife 8 may be carried on a short rigid arm 9 and may be rigidly supported close to the point where the cutting is )erformed. The knife is thus firmly and rigidly held during the cutting without danger of its yielding in chattering, and with a resulting uniformity in itsaction upon the Welt. The cutter acts to cut the channel in the welt during the return movement of the feed slide at which time the work is firmly clamped in position with thesurface of the well; held firmly and accurately against the surface of the work support and supported upon. opposite sides of-the groove 7 within which the channeling cutter operates so that the cutting of a channel of uniformdepth is insured. The channel is also out without putting any strain upon the feeding awl, since the cut is effected during the return of the feed slide and while the awl is out of the work.

In order that the channeling knife may be moved into and out of active position at the same times that the edge gage is moved into and out of active position, so that the channelingknife may be out of action while sewing through'the shank and may be in action during the sewing about the forepart of the shoe, the knife carrying slide it is connected with and by the lever 5 through which the edge gage is operated. The connections between the slide L1 and lever 5 consist of a lever 16, one end of which engages a recess in the slide 11 and the other end of which carries a roll 17 engaging a cam 18 which is secured to the lever The cam 18 is so shaped that when the lever 5 is mo\'ed to bring the edge gage 3 into action the lever 16 is operated to raise the knifecarrying slide 11 and project the channeling knife up through the slot 7 and into position indicated in Figs. 1 and 3. When the lever 5 is moved to withdraw the edge gage 3 from active position the cam 18 acts on the lever 16 to move the knife carrying slide 11 downward, and thus withdraw the channeling knife 8 into a position below the upper surface of the work support.

\Vhile it is preferred to mount the channeling knife upon the feed slide in the manner shownnnddescribed. and to employ the specific construction and arrangement of parts shown and described, it will be understood that this manncr of mounting and the specific construction .and arr: ngement of the parts is not essential to'the invention in its broader aspects and may be varied as found desirabhi, and to suit the requirement of the specific construction and arrangement ofthe parts of the machine to which it is desired to apply the invention.

Having explained the nature and object of the invention and specifically described one form of mechanism inwhich it may be embodied, what. i claim is:

1. sole sewing machine, having, in combination with stitch'forming and work feeding devices, a work support, a channeling knife arranged to cut a st itch-receivingchannel in the surface of the welt, and mechanism l'or moving the. knife with the work during the feed and in the opposite direction knife arranged to 'eutk -i-a stitch-receiving substantially as described.

channel in the surface 6f the welt, mechanism for moving the Qdlife with the work during the'feeding movement of the feeding devices and in the opposite direction during the return stroke of the" feeding devices,

' 3. rtsole sewing machine, having, in coms bmat ion with stitch 'forming devices a work support and feed slide, a channeling knife f mounted on the feed slide and arranged to '2 cut a stitch-receiving channel in the surface .of the welt, substantially as described.

fl. sole sewing mac ine, having, in comb nation with stitch forming devices, a slotted work support having supporting surfaces on opposite sides of the slot, a feed slide, a channeling knife mounted on the feed slide and arranged to cut a stitch-recelvlng channel 111 the surface oi the welt, and means for pro3ect1ng the knife up through the slot in the work support and withdrawing it below the surface of the 'WOIk support, substantially as described.

5. A sole sewing machine, having, in combination with stitch forming devices, a work support, a feed slide, an edge guide, a channeling knife mounted on the feed slide and arranged to cut a stitch-receiving channel in the surface-of the welt, means for moving the -edge guide into and out of active position, and for projecting the channeling knife above the surface of V the work guide and Withdrawing it below said surface, substantially as described.

In testimony whereof I afiix my signature, in presence of two Witnesses.

JQHN n. Hanawavf Witnesses FRED U. FISH,

ANNIE C. RicrrAunsoN.