USRE2906E - of francis d - Google Patents

Description

UNITED STATES PATENT OEEIC1 `V. N. ELY, OF STRATFORD, CONNECTICUT, ASSIGNEE, BY MESNE ASSIGl MENTS, OF FRANCIS D. BALLOU.

IMPROVEMENT IN MECHANISM FOR BOOT AND SHOE SEWING MACHINES Specification forming part of Letters Patent No. 34,903, dated J annary 2Q, 1361 reissueA No. 2,906, dated March 31, 1868.

To all whom it may concern:

Be it known that I, FRANCIS D. BALLOU, of Abington, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Sewing-Machines for Sewing on Boots and Shoes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings forrning a part of this speeiication, in which- Figure l represents a side elevation of that portion of the sewing-machine constituting my invention, showing in red lines a portion of the upper, outer sole, and welt in the position to be operated upon by the awl and needle, when the shoe is inverted or the sole is uppermost in the maehine. Fig. 2 is a front view of Fig. 1. Fig. 3 is a top view of Figs. l and 2, with the parts in the same relative position with each other as in the preceding tigures. Fi g2 4 represents an ordinary boot or shoe. Fig. 5 is a view of the pressure-bar of Figs. 1 2, and 3, opener, and revolving disk, showing their relative position when. the sole of the shoe is down or in an opposite position to that in Fig. 1.

Similar letters of reference indicate corresponding parts in the several gures above referred to.

The drawings do not represent the needle nor the awl, nor any of the devices for forming the stitch, as the several parts to be L:laimed may be used with any suitable sewing mechanism for carrying wax-thread.

This invention does not refer to the devices forformingany particular stitch, but to devices for presenting the work to the awl and needle in a proper manner for stitching the welt to the outer sole.

.This invention is also closely connected with my patent of January `10. 1860, for making sewed boots and shoes.

Where the welt is stitched to the upper previously to putting on the outer sole, then the outer sole is stitched to the welt4 from the outside ofthe shoe or boot by my present improvements, and it is for the purpose of perfecting the operation of making stitched boots and shoes by my machinery.

a throat for the purpose of allowing The object of my improvements in making stitched boots or shoes by sewing mechanism is to hold the work down on the table or bed-plate of the machine as near the awland needle as possible, and to keep the channel formed on the outside of the outer sole open, so that the seam willfollow closely in this channel; that the raised lip of the channel may be pressed down after the shoe is nished, and present a neat appearance, the stitching had been done by hand. It fur- .ther provides for stitching the shanks of the `boot or shoe, in which operation the work can be presented to the awl and needle with great facility; and it provides for keeping the upper back from the needles, and for .guiding the channel to receive the same through the machinefand for sewing light. and heavy,

- large or small work, all as will be hereinafter described and represented.

To enable others skilled in the art to fully understand my invention, I will proceed to describe its construction and operation.

In the drawings, A represents the bed-plate or table of the machine, the front end of which `is curved out, as represented by the drawings,

Fig. 3, for the purpose of bringing the work up close under the needle and awl, (which latter parts are not shown,) for stitching the shanks of the boot or shoe from the points a to b of Fig. 4. On the rounded end of table A is secur'ed'a curved plate, B, with a lip or standard, c, projecting up from it a'suitable distance, against which standard or lip is placed the edge of the upper during the operation of sewing', in Fig. 1. press back the upper to prevent the awl or needle from coming in contact with it, and operates as a support to the work.. Its

done. The work often requires to rest upon a comparatively small surface as the stitchin g progresses. The curved plate or guard B is bent ont from the edge of the table, forming the awl and needle to pass freely down ybetweei: this plate and table. By changing the' plate B and 'using others of dii'erent thickness, they may be used as gages for determining the space required between the upper leather and This lip serves to height `may be regulated according to the work to be t be acted .upon by a ,spring,"ifx' necessary,l

carrying 011 its lower end-two adjustable ibot-pieces, C C', they inner` one, Gi, being straight and parallel with .the rod D, and

the other one, O, is slightly bentF inward or toward that lettered C. AThese shoes 'arefboth bent forward, as clearly', shown'lin Figs 2, and have their `lower edgesparallel with the-surface of table A. `The shoe (l is placed directly overthe stendardo. f.,plate B, while the shoe `C( is directly over the outer edge ofl a revolv- "f Jing', disk, E, as 'shown-,byI Fig. 1., 'Thesevtwo shoes C` Cif; vare intendedto-holdthe work l'down fir'njly nponthe A,.n'i'ovable. disk and `standard,cA of platelB, sogthathin `,the upward.

' motionV of the awl andneedle theywill not carry the work with them.' They rest on each side of tle seam, and press upon the welt and edge of the outer sole that projects out from the upper of the shoe. .'lhe outerl shoe-plate (j serves a twofold purpose, and, besides holding the work down, it is 'intended to gage the work, so that the awl and needle will follow in the channel previously cut near the edge of the outer sole. It thus serves to determine the space required between the upper leather andthe row of stitching made through the welt and outer sole, when the shoe is presented to the machine with the sole down. These footpieees are made adjustable for the purpose of adapting the ends that rest on the work to the difference caused bythe size of the welt, there being much difference in thesize of the welt used, and by loosening the screw d the pieces may be adjusted to suit any kind of work.

For di'erent-sized shoes or boots, and when the stitching varies inits distance from the edge of the sole, or from the upper, a shoeplate, C, of a ditferent width must be used. The curve shown by Fig. 1 is given to this plate C, so that its lower edge may be brought as close to the upper as possible, so that the seam may have a strong hold 011 the welt and outer sole. In front of the shoe-plates C C', and projecting up a suitable distance above the disk E, upon which theouter sole resta, is a pointed bar, G. In Figs. l, 2, and 3 this point is shown turned down, but in Fig. 5 it is shown in operation, the point of which serves to open the channel that is previously peut around the outside, and near the edge of the outer sole.

This point is kept in such a channel, and as the work is fed up to the awl vand needle the channel is opened and kept open by the said point, so that both the awl and needle will pierce the leather through this channel, and the stitches will be sunk or drawn tightly into the channel, so that when the shoe v is iinally stitched the lip or raised portion of the leather` of the channel can be fitted down `ir' a neat and perfect manner, asinvthe-ease way, or removed from the machine.

'outer sole.

of hand-stitched work. T t will be seen that the opener G will further serve to guide the' work up to the sewing devices. The opener should im mediately precede the .L wl, so that the awl will descend and pierce the hole through the bottom of the channel, and not to one Side and thenanother. This opener Gis used when thev welt is uppermost in the machine, and when the foot-plate C is against the upper, to hold it back from the awl and needle; but ywhen the shoe is turned over or inverted, and the sole is uppermost,an opener,` G', similar to G, and serving the same purpose, is used. The opener .G is then turned down out o'f the The lip or standard c of plate B then servesto hold the upper out of the way of the awl and needle,. Fig. 1, and the -foot'bar or rod D holds the work down on the table whilethe awl and needle perform their work, both of whichwork Y, between the foot-plates C and C. 'lhe circular ,plate or revolving disk E serves, inits relation to the abovelmentioned parts, to allow the work to pass freely from the awl andneedle, for, as the work must be held downv` hard upouthe table on-aceount of its peculiar'char acter, a iixed surface for it to pass over would cause the work to draw and twist, and it would be very dicult to control the correct line for receiving the stitch; but this revolving surface, in connection with the guides and opener and presser-foot or plates, will greatly facilitate the movement of the work up to and from the awl and needle. By using these devices with the ordinary awl-feed wax-thread sewingmachine, in Ywhich a belaying double-loop stitch is formed, the work must be reversed in some cases, so that the single thread will be in the channel of the outer sole, and the double thread or stitch on the Welt. This is done for light work.

The operation of my invention may be briefly described as follows: In the operation, Fig. 5, the upper o f the boot pr shoe is held (commencing at the point a., Fig. 4:) against the foot O, the outer sole resting on the lip or post c, and the circular disk E with the opener G'`I placed in the channel previously cut in the The foot-plates are adjusted by screws so as to rest on the welt. The welt and outer sole are then stitched together in the usual manner of sewing with the awl-feed wax-thread sewing-machine. 1n operation, Figs. 1, 2, and 3, the upper leather of the boot or shoe is held (commencing at the heel at a) against the lip or post c, with the welt resting l. The foot-piece C, when constructed and arranged and used. as va guard, or guard and gage, substantially as and for thepurposes described.

2. The lip or standard'c, when constructed,

l arranged, and `used as 'a guard or gage or sup, substantially as described.'

port for the shoe,

3. The combination of a guide or guard, substantially as described, with ain opener for opening the channel for the action of thencedle, substantially as set forth. I

4. The presser D', in combination with.the` adjustable foot-pieces O and C', substantially as described.

5. The bearing-plate 'B and lip' or standard c, in combination with the presser-har, substantially as described. ,l

6. The projecting perpendicular' plate B with' standard c, substantially as-and for the pnrposes described. A i 7. The combination pf the bearing-plate-or table E withal@v up or standard 0 substantially as described.

8. `The:` combination o fthe standard c with the foot-piece C, arranged substantially as' de- -scribed, 'and for the purposes set forth.

9. The supporting, arding or guiding, and channel-openin -mec a'nism, when combined and arranged, 1n relation to each other, substantialljnas and for the purposes set forth.

y10. The projecting horizontaltable-plate A,

provided at its 'outeredge with av projecting standard, c,' and arranged vso that an opening is formed between the two for thenneedle, suby and for the purposes described. In witness whereofI have Ihereto signedtheforegoing specification.

' .F. D. BALLOU. .A

Witnesses: GEO. A. Bmx., J omi L. NASH.

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