US1742797A - Shoe-sewing machine - Google Patents

Description

Jan. 7, 1930. E. WEBB 1,742,797

SHOE SEWING mcsmm Filed June 19, 1925 2 Sheets-Sheet 1 Milka JanL7, 1930. E; wE B 1,742,797

SHOE SEWING MACHINE Filed June 19, 1925 2 Sheets-Sheet 2 Patented Jan. 7, 1930 .UNITED STATES PATENT OFFICE ELLIS WEBB, or GENEVA, New Yetex, AssIeNon 'ro' UNI-TED SHOE-MACHINERY 0011- romrron, or IPA-TERSON, NEW JERSEY, A conr'onnrron on NEW JERSEY SHOE-SEWING MACHINE Application filed June 19, 1925. Serial No. 38,331

The present invention relates to shoe sewing machines and is hereins'hown as" embodiedin a machine adapted to sew the outse'am.

which connectsthe sole and welt of a welted shoe. A Well-known type of machine for performing this operation is illustrated in the patent to Seely No. 1,348,901, dated August 10, 1920, and in the drawings accompanying this application the invention is illustrated as embodied in a machine of the type shown in this patent.

In the operation of outsole shoe sewing mathe awl is bent to one side and fails to bring the awl hole directly under the needle. As a consequence the needle, as it enters the work, does not find the awl hole, and the unperforated stock offers so much resistance to the needle that the needle or some part of the ,referred to as the edge of the sole. cordance with this feature of the invention needle actuating mechanism is broken. This difliculty is particularly noticeable where the machine is used for repair work on thick stock. To avoid this difficulty and to cause the Work to be fed in a satisfactory manner by the awl, the operator often uses a larger awl than is required for the size of needle and thread used in the machine and as a consequence produces inferior work.

The object of the present invention isto overcome this objectionable feature of outsole shoe sewing machines and to provide a construction and arrangement of parts by which the proper size of awl may be used in the machine and at the same time the work may be fed evenly and in a reliable manner to cause the awl holes to be registered accu rately in the path of the needle.

With the above object in view a feature of the present invention contemplates the provision in an outsole shoe sewing machine of a Work feeding device which is arranged to act on the outwardly'facing edge surface of the shoe sole, said surface being hereinafter In acbreadly considered the work feeding means which engages. the edge of the shoe sole may be of any suitable construction and may be combined with the operating instrumentalities of any machine adapted to form the outseam of a shoe. In its more specific aspects, however, the invention will be embodied in a construction comprising a feeding awl and a feed finger mounted on the feed slide which carries the awland supplementing the feeding action of the awl. The invention is designed primarily for use in an outsole shoe sewing machine provided with an edge gauge to bear against the edge of the shoe sole in proximity to the path of the needle and position the work properly with relation to the needle transversely of the direction of feed,

and when embodied in such a machine a fea-- ture of the invention contemplates mounting the feed finger on the awl feed slide of the machine and arranging it to engage the sole edge in line with the edge gauge transversely of the direction of feed. 7

p The invention will be clearly understood from an inspection of the accompanying drawings, which illustrate a form of the invention embodied in an outsole shoe sewing niachineof the type disclosed in the patent to Seely' above referred to.

I Referring to the drawings, Fig. 1 is a view in side elevation of the machine; Fig. 2 is a detail perspective view of the feeding finger which is arranged to act on the edge of the shoe sole; Fig. 3 is] a view in front elevation of aportionof, the machine illustrated in Fig. 1; and Fig. 4 is a detail plan View illustratingparticularly the work feeding devices of the machine.

' The curved hook needle of the machine illustrated in the drawings is indicated at 6, the curved awl at 8', the fixed work support at 10, and the presser foot at .12, these parts, and other parts. of the machine not; herein specifically referred to, being constructed and arranged to operate as is usual" in this type of machine. I

The feeding slide upon which the awl is During the operation of the machine opposite sides of the sole, that is, the upper side of the Welt and the thread surface of the outsole, are engaged by the presser foot and work support, and the work is fed over the work support intermittently to bring successive awl holes into the path of the needle by the reciprocations of the feed slide 14. During this feed movement of the work the position of the work with relation to the needle transversely of the direction of feed is determined by a fixed edge gauge 22 with which the work support 10 is provided on its upper surface in line with the needle slot transversely of the direction of feed. As heretofore constructed and operated, machines of this type have re-- lied upon the awl to feed the work, and as has above been stated, this has often proved a source of trouble and has occasioned frequent breakage of needles or other parts of the machine, or has led to the use of unnecessarily large awls with the consequent production of inferior work. The feeding device illustrated in the drawings, by which an accurate and reliable feed movement of the work is seinto the awl segment stud. The head 24 of the finger is recessed on its under side and rests on the uper surface of the edge gauge 22 withthe prongs or teeth 26 extending =slightly beyond the front surface of the gauge, as indicated in Figs. 1 and 4. The teeth 26 of the finger are thus yieldingly supported in a position to engage the edge of the shoe sole whenthe'shoe is placed in position in the machine with the sole edge against the edge gauge.

During each forward reciprocation of the feed slide, the teeth 26 of the feed finger grip firmly the edge of the sole, and as the feed finger moves with the slide in unison with the awl the work is fed a distance equal to the full reciprocation of the feed slide, and the awl hole is positioned accurately in line with the needle. All

danger of bending the awl is thus avoided. An awl of a size corresponding to that ofv the needle and thread can be used and the thickest work within the capacity of the been thus described,

port and a presser foot arranged to engage opposlte sides of the sole, a feed slide, an awl mounted on the feed slide, and a feed finger mounted on the feed slide arranged to grlipthe outwardly facing edge surface of the so e.

. 2. An outsole shoe sewing machine having, 1n combination, stitch forming devices including a curved hook needle, a work support and a presserfoot arranged to .engage op-' posite sides of the sole, a feed slide, an awl mounted on the feed slide, an edge gauge, and a feed finger mounted on the feed slide arranged to act on the outwardly facing edge surfaceof the sole in 'line with the edge gauge transversely of the direction of feed.

3. An outsole shoe sewing machine having, 1n combination, stitch forming devices, a work support fixed in the direction of feed, a work feeding awl, and a feeding device arranged to act on the outwardly facing edge surface of the shoe sole and supplement the feeding action of the awl.

4. An outsole shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a work support and a presser foot fixed in the direction of feed arranged to engage opposite sides ofthe sole, a feed slide, an awl mounted on the feed slide, and a feed finger yieldinglymounted

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