US467429A - Shoe-sewing machine - Google Patents

Description

4 Sheets--Sheet 1.

(No Model.)

W. Y. OBER.

SHOE SEWING MACHINE.

(No Model.) 4 Sheets-Sheet 2.

W. Y. OBER.

. SHOE SEWING MACHINE.

No 467,429. Patented Jan. 19, 1892.

(No Model.) 4 Sheets-Sheet 3.-

W. Y. OBER.

sEoE SEWING MACHINE.

No..467,429. Patented Jan. 19, 1892.

N l? F nl l (No Model.) 4 Sheets-Sheet 4.

W. Y. BER. SHOE SEWING MAGHINE.

N04. 467,429.V Patented Jan. 19, 1892.

F, (shown in dotted lines in Figs. l, 5, and 7,) which is surrounded by a strap F', having its upper end adjustably connected to a rocking needle-carrier F, pivoted yin a suitable manner to the upper end of the head B. In Fig. 9 I have shown the said needle-carrier as provided with a horizontal short sleeve f, journaled in a horizontal perforation in the head B, and held in position by means of a nut f. The needle-carrier may, however, be pivoted to the head B in any other suitable or equivalent manner, as may be desired.

F3 is the curved-hook needle, secured to the needle-carrier in any suitable manner. It will thus be seen that an oscillating or rocking motion is automatically imparted to the needle from the rotary driving-shaft C.

G is the cast-off, forming a part of a disk or washer G', which is held frictionally in con tact with the side of the needle-carrier F, as shown in Fig. i), preferably by having a pin or spindle g attached to said disk G', and inserted loosely through the needle carrier sleeve f and provided with a coiled tensionspring g and an adjustable nut g for regulating the friction between the cut-off plate and needle-carrier, as fully shown in Fig. 9. The cast-off is intermittently rocked forward and back by means of two projections ff on the needle-carrier coming in contact with a lip or projection g3 on the cast-off disk G', as shown in Figs. 2, 5, and 9.

II is the curved presser-foot secured to or made in one piece with the handle I-I, the hub of which is loosely j ournaled on the needle-carrier sleeve f or otherwise hung on the same axis with the needle-carrier and cast-off that is mounted concentrically with said needle-carrier and cast off, as shown in Fig. 9.

The presser-foot II is normally held in operative position preferably by the infiuence of a spring h, secured to the head B or other stationary part of the machine and havin g its free end preferably pressing against a projection 77, on the handle Il', as shown in Fig. 5. The presser-foot is withdrawn from the work by taking hold of the handle Il and pushing it backward. The presser-foot is automatically moved out from the work bythe needle-carrier while the feed takes place, as is common in machines of this kind, and for this purpose I prefer to arrange a pin or projection on the needle carrier adapted to enter a slot or groove in the presser-foot lever or in any other desirable or suitable manner.

The mechanism for operating the thread guide or looper is constructed as follows: In one piece with the cam E or secured to it or the drivin g-shaft C is a cam-disk I, having a duplex cam-groove I', against which is held and guided a projection t" on the lower end of the thread-guide lever i, as shown in Figs. 2 and 5. The said lever lis guided in a forked rocking pin or stud z" loosely pivoted to the head B, so as to permit said levert' to slide up and down in said stud and to rock on it as a ica/4.29

fulcrum when actuated by the duplex camgroove I. The lower end of the lever z' is held against the bottom of the duplex cam-groove I by the influence of a suitable spring I, one end of which is preferably secured to the head B and having its free end pressing against the side of the said lever 1l between its fulcrul'n-guidei and lower end, as shown in Figs. 2 and 5.

I3 is the perforated thread-guide attached in a suitable manner to the upper end of the lever i, as shown in Figs..2 and 5. By this mechanism a proper movement is imparted to the thread-guide for the purpose of making a chain-stitch in connection with the needle and its cast-off.

To the under side of the upper end of the head B is secured in a detachable manner the welt-guide K, having a groove or recess 7c for receiving the welt L, which is passed through a perforation d8 inthe awl-feed-carrying arm D5 before being laid in the grooved weltguide K 7s, as shown in Figs. 2, S, G, and 7.

The welt may be fed from a reel, as is usual in a welt-sewing machine, such device being, however, not shown in the drawings.

Then it is desired to use the machine for sewing turned shoes, no welt being used, the welt-guide is removed and a solid-work sup-V port K substituted, as shown in Fig. S.

In Fig. l, M is the Wax-pot, as usual, through which the thread N is guided on its way to the thread-guide. In connection with the machine any of the usual tension and take-np devices maybe used without departing from the essence of my invention, and need therefore not be described, as they are well known in the art, and form no part of my present invention. i

In Figs. 4 and S, O represents the Wooden last, P the channeled insole, and Q the upper lasted upon the last, as usual.

The operation of the machine is as follows: For welt-sewing the welt is placed in its guide and the lasted shoe having the channeled insole, as described, is held by the operator against the welt-guide and the presserfoot placed in the channel of the insole, as shown in Fig. it, after which the machine is set in operation, causing a single-thread chain-stitch to be made through the bottom of the channel of the insole, the upper, and the welt, the chain of the stitch being laid in the bottom of the channel, and during such operation the awl enters and perforates the insole, upper, and welt, then feeds by moving sidewise until the awl comes within the path of the needle, when it automatically withdraws from the work and moves back to its original position, during which time the chainstitch is made by the needle, cast-off, and thread-guide, and after the stitch is made the awl again enters the work, feeds it, and so on during the operation of the machine, The action of the presser-foot is the same as on other machines of this nature.

After the l IOO IIO

welt has been sewed on it is cut oft, the presser-foot released, the shoe removed, and another placed in position to be sewed.

The machine is very siinplein construction and operation, is composed of a very few parts, is very convenient and practical, and by its use strong and accurate workmanship is obtained in a very rapid manner.

Having thus fully described the nature, construction, and operation of my invent-ion, I wish to secure by Letters Patent and claiml. In a Welt-sewing machine, the combina,- tion, with a stationary head B and an oscillating needle-carrier, presser-foot, and cast-oft, all pivotally mounted on the stationary head, of a laterally-swinging arin D5, the oscillating awl-carrier D3,pivoted directly to the upper end of the laterally-swinging arm and moving therewith in the arc of a circle of which the pivot of the arm is the center, a drivingshaft having a series of cams, and connections for imparting motion from the cams to the needle-carrier, presser-foot, and cast-off, transmitting lateral feed motion to the swinging arm and oscillating the awl-carrier thereupon as the awl-carrier moves in the arc of a circle with thevarm, substantially as described.

2. In a welt-sewing machine, a stationary head having secured to it a grooved weltguide and having pivoted to its upper end a needle-carrier, presser-foot, and cast-off, a

pivoted laterally-swinging arm, and an oscillating awl-carrier pivoted directly to the upper end of the arm and swinging therewith in the arc of a circle of which the pivot of the arm is the center, combined with a series of cams on the driving-shaft, and connections which impart motion from said cams to the individual members of the stitch-forming and feed mechanism, transmit the lateral feed motion to the swinging arm and oscillate the awl-carrier thereupon as such awl-carrier moves in the arc of a circle with the arm, substantially as described.

3. In a welt-sewing machine, a rocking needie-carrier, presser-foot, and cast-off, a pivoted laterally-swinging arm D5, and an oscillatng awl-carrier pivoted directly to the upper end of the swinging arm and moving therewith in thev arc'of a circle of which the pivot of the arm is the center, combined with a series of cams on the diivingshaft, and connections for imparting motion from said cams to the individual members of the stitcht'orming and feed mechanism and transmitting the lateral feed motion to the swinging arm and oscillating the awl-carrier thereupon as such awl-carrier swings in the arc of a circle with the arm, substantially as described.

4. In a welt-sewing machine, the combination of a pivoted laterally-swinging arm D5 and an oscillating awl-carrier D3, pivoted directly to the upper end of the arm and swinging therewith in t-he arc of a circle of which the pivot of the arm is the center, with a drivin g-shaft, and means, substantially as described, for swinging the arm laterally and oscillating the awl-carrier thereupon as such awl-carrier moves in the arc of a circle with the arm, substantially as described.

5. In a welt-sewing machine, the combination, with a driving-shaft having cams, of a pivoted laterally-swinging arm Di, and an oscillating awl-carrier D3, pivoted directly to the upper end of the arm and swinging therewith in the arc of a circle, a guide-block D", loosely mounted on the driving-shaft, a forked slide D', engaging the guide-block and acted upon by a cam on the driving-shaft, and a link c connecting the forked slide with the oscillating awl -carrieig substantially as described.

G. In a welt-sewing machine, the combination, with a driving-shaft C, having cams and E, the stationary head B, and the oscillating needle-carrier, presser-foot, and castoff, all pivotally mounted on the head, of the laterally-swinging arm D5, having the vertical pin d5, journalcd in the stationary head and provided at its lower extremity with a lever D, acted upon by one of the cainson the driving-shaft, an oscillating awl-carrier D3, pivoted directly to the upper end of the arm and swinging therewith in the arc of a circle, a guide-block D, loosely niountedon the driving-shaft, a forked slide D,engaging the guide-block and acted upon by the other cam of the driving-shaft, a link d, connected with the forked slide and having a universaljoint attachment to the oscillating awt-carrier, and connections for oscillating the needle-carrier, presser-foot, and cast-off, substantially as described.

7. In a welt-sewing machine, the combination, with a stationary head B, having a needle` cari-ier, a presser-foot, and a cast-off, of a laterally-swinging arin D5, having a vertical pin d, journaled in the stationary head and provided at its lower extremity with a horizontal lever D6, a driving-shaft having cams, one of which acts upon the said lever to move it 1n IOO IIO

one direction, a spring E for retracting the lever after it has been moved by the cam, an

oscillating awl-carrier D3, pivoted directly to the upper end of the swinging arm and moving therewith in the arc of a circle, a guideblock D", mounted on the driving-shaft, a slide D', engaging the guide-block and .acted upon by the other cam of the driving-shaft, and a link d, connecting the slide with the oscillating awl-carrier, substantially as described.

In testimony whereof I have signed my naine to this specification, in the presence of two subscribing witnesses, on this 29th dlay of December, A. D. 1890.

WILLIAM Y. ODER.

NVitiiesses:

ALBAN ANDRN, ALICE A. PERKINS.

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