US33556A - Improvement in sewing-machines - Google Patents

Description

C. G. MANN.

Sewing Machine. No. 33,556, A Patented-Oct. 22, 1861.

UNITED STATES CHARLES Gr. MANN, OF \VALPOLE,

ASSIGNOR TO ALFRED B. ELY, OF

NEWTON, MASSACHUSETTS.

lMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Letters Patent N0. 33,556., dated October 22, 1861.

To all whom it may concern...

Be it known that I, CHARLES Gr. MANN, of \Valpole, in the county of Norfolk and State of Massachusetts, have invented an Improved Embroidering Attachment for Sewing- Machines. of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a view of a sewing-machine with my improvements attached; Fig. 2, details, to be referred to hereinafter.

The object of my present invention is to produce a machine for embroideringt-that is, for

. sewing onto the surface of a piece of cloth or other article silk or other thread, braid, or cord, using a varying number and a variety of colors of such threads, cords, or braids to produce various patterns. Iam aware that for this purposea mechanism hasbeen attached to an ordinary sewing machine, which, by means of two vibrating arms, threw two cords or braids alternately beneath the needle, so that they were sewed down onto the cloth by it, producing a species of embroidery. This, however, was quite limited in the variety of efiect produced, only using two cords.

My invention consists in a shaft (supported in a suitable frame attached to a sewing-machine) which is placed in such a positionand at such an angle to the bed or table of the sewing-machine on which the cloth to be sewed is placed, or is so furnished with take-ups, that the several cords which are delivered from the periphery of a circle or ends ofarms at the 4 lower end of this shaft may all incline equally stand and use my invention, 1 will describe the manner in whichI have carried out the same.

In the said drawings, A represents the bed or table of a sewing-machine, from which rises the upright B, lrom which project thearms O, which carry the presser-bar a and needlebar b, the needle being operated by an eccentric pin, 0,011 a disk or cam, D, driven by a hand-wheel or a treadle. The sewing mechanism, being such as is now in general use, need not be here described.

To one side ofthe arms 0 is attached a frame, E, which carries in suitable bearings ate? and e a hollow shaft, F, inclined at an angle of about forty five degrees to the path of the needle-bar b and to the table A, on which the cloth or other article to be embroidered is placed. Collars 3 and 4: on the shaft maintain it in position. From the lower end of this shaft projects a series of hollow arms, 1 2 3 4 5 6, each of which carries a thread or cord led from a corresponding spool, f, carried on alight frame, 0, on top of the shaft. The threads 1 2 3 4 5 6 (which may be of any variety of colors) from the various spoolsfare led down through the hollow shaft Randeachoneisthreaded through one of the hollow arms. (A small bent wire will be found convenient for threading them.) It is then led down to the cloth on the table A in such a position that the needle of the sewing-machine will sew it down onto the surface of the cloth. The inclined position of the shaft F allows'the various threads 1 2 3 4, &c., to have an equal inclination toward the point where the needle penetrates the cloth, and

consequently an equal tension may be kept on the threads without the need of any take-up device.

. Instead of the hollow arms 1 2 3 4 5 6, a disk may be used with the required number of holes in its periphery, and in some cases a solid shaft may be used, the threads leading down to the disk at its lower end on the outsideof the shaft.

By revolving the shaft F a greater or less amount in one direction or the other as the sewing proceeds, and by varying the respective positions of spools fofdifterent-colored threads, and also by changing the number of threads delivered from the shaft, a great variety of embroidery may be made.

I have here shown one way in which the shaft F may be revolved by the sewing-machine a sixth of a revolution at each stitch, and may be changed to revolve an equal amount in the opposite direction. Other mechanical devices, however, may be adopted for giving these revolutions to the shaft F without departing from the spirit of my invention. I will now describe the one here shown. To the upright B of the frame of the sewing-machine is pivoted at g a bell-crank, H, the lower arm, -1, of which is held in contact with the edge of the cam D by a spring, 71, attached to the frame-work.

Theother arm, 2, has pivoted to its end one end of a bent lever, I, which is pivoted at -i to the frame E. The other end of this lever is connected with a frame, G, which is hung on the shaft F, but vibrates freely on it. To this frame G is pivoted at 7 a double-hooked pawl, l, which engages with a cog-wheel, m, attached to the shaft F. A dog, at, which is held by a spring, 0, holds the pawl lover to one side or the other of its pivot, and thus causes one or the other ofits arms 1 or 2 to engage with the wheel m, so that the same vibrations of the frame G will revolve the shaft F in either direction, as required. Acam-wheel, L, (in red, Fig. 2,) attached to the shaft F, immediately above the wheel m, serves to regulate the amount of the revolution of the shaft F, and stop it at the exact point in the following manner: To an arm, 0', projecting from the top of the frame E, is pivoted, at 8, alever, M, which carries at its outer end a grooved wheel or pulley, s, which is held in contact with the edge of the cam L by a spring, t, and drops in one of the notches or recesses 9 in the cam.

When it is required to give the shaft F a greater or less amount of revolution the wheel m and the cam-wheel L will be changed for others having a different number of teeth or recesses.

l/Vhat I claim as my invention, and desire to secure by Letters Patent, is-

Delivering threads, braids, or cords in the path of and before the needle of a sewing-machine (for the purpose of having the same sewed or embroidered upon cloth or other substance) through or by means of a shaft rotating continuously or alternately, and operating substantially as described.

CHAS. G. MANN.

\Vituesses:

Tries. R. ROAGH, P. E. TESOHEMAOHER.

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