US852598A - Sewing and embroidering machine. - Google Patents

Description

PATENTED MAY 7, 1907.

R. GORNELY. SEWING AND BMBROIDBRING MACHINE.

APPLIdATIoy .rILEn 00T.21,1905.

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PATENTED MAY 7 R. GORNELY. SEWING AND EMBROIDERING MACHINE.

APPLICATION FILED 0GT.21,1905;

2 SHEBTS-SHBET 2- IIAAIIAAAAAAAAAA ROBERT O ORNELY, OF PARIS, FRANCE.

SEWING AND EMBROIDERBNG MACHINE.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed October 2]., 1905. Serial No. 283,866.

To a who/11, it may cancel-mi Be it known that I, RoBERT CORNELY, a resident of Paris, France, have invented a new and useful Improvement in Sewing and 3 Embroidering Machines, which is fully set forth in the following specification.

The present invention relates to sewing or embroidering machines, and has for its object the provision of a machine wherein the movement of the needle is automatically stopped at any'predetermine'd time.

The ordinary lock-stitch sewing machines are frequently employed for producing embroidery work, which is accomplished by stopping the feed motion of the machine, at which time the cloth to be embroidered, and which is secured to a suitable frame, is moved by the operator according to the design which is to be embroidered; and by moving the embroidery frame a certain length of thread is. drawn through the eye of the needle at each stitch of the machine. But this drawing of the thread through the needle, while the latter is in constant motion, prevents a regular feed of the thread to the cloth and results in the production of im erfect embroidery, particularly in view of t 16181013 that the frame has to be moved very rapidly during the short space of time that the point of the needle is above the cloth. The operation of the embroidery frame while the needle stitches at high speed requires a skilled o )erator, as the needle might bend or break if its point is still engaged in the cloth when. the frame is moved. And it is therefore the particular object of the present invention to automatically and suddenly arrest the movement of the needle at regular intervals, for instance, after each first, second, third or fourth, etc. stitch, while. the needle is in its highest position, so that the operator can move the embroidery frame freely at regular intervals when the needle is thus in its highest position above the cloth, the present invention obviating the necessity for highly skilled operators. In order to obtain this self-acting and periodical stop motion, use is made of the construction which is shown and described in U. S. Letters Patent granted to Anl oine Bomiaz, Nov. 10th, 1868, No. 83,910, but which stop motion is not self-acting or automatic and has to be operated either by hand or by foot, such as by mechanism shown and described in Letters Patent No. 182,804 of October 3d, 1876, granted to Emil Cornely.

by reference to the accompanying drawings, wherein Figure 1 is a general view of a sewing machine. equipped with. my improved construction; Fig. 2 is an enlarged detailed view; Fig 3 is a view similar to liig. 2, with the parts in a different position; Figs. 4, 5, 6 7 and 8 are details. 4 v

. Referring to the drawings, a drive wheel 2 is secured to a hollow shaft 8 in which is lodged the end of main shaft 1 of the machine. A cam 4 on the main shaft 1 is arranged to slide longitudinally-on said shaft the cam 4 has been pushed to the right under the influence of spring 8, so that stud 5 enters an aperture in disk 11 which latter is secured to the hollow. shaft 3; the drive wheel 2 and shaft 1 being thus coupled together for the operation of the machine. But when the rod 10 is released, spring 17 forces said rod upward into the position represented in Fig, 2 and the lever 7, which has been shifted from the osition shown in Fig, 3 to that shown in ig. 2 by the action ofvthe cam 4, striking against the upper end of rod 10, moves cam 4 to the left, drawing the pin 5 of said cam out of disk 11, and shaft 1 is thus instantaneously uncoupled from the fly Wheel 2 andftlie machine is stopped. The mechanism as thus far described is found in the patents heretofore referred to. i

For the purpose of rendering the construction self-acting in order that the machine may stop automatically at regular intervals, such as after each first, second, third, fourth etc., stitches, and to throw it again automatically in gear, the drive wheel 2 is provided with a gear wheel 12 which meshes with a gear wheel 14 of (for instance) double the diameter (Fig. 4), mounted on one end of a counter-shaft, and a cam 15 is secured on the. other end of said shaft and bears upon a roller 16 of rod 10. Thus after eachv revolution of wheel'Z, rod 10 is pressed downward into the The invention will be better understood l position represented in Fig. 3 and the shift wheel 2 and the machine performs one sin le.

stitch; but after the next following revo ution of the drive wheel 2, the roller 16 is rei leased from the ressure of cam 15 and spring 17 drives the rod 10 upward into the position represented in Fig. 2 and the shaft 1 is instantaneously uncoupled from wheel 2 and the motion of the machine is sto ped. At the next following stitch the mac me is set into operation again and is stopped each alternate turn of the drive wheel 2-. During these periods of rest, the needle of the machine is always at its highest position above the cloth, so that the operator can easily move the cloth frame 24 according to the design to be embroidered, and can also easily draw the thread through the needle to so ply the required length to the work. Accor mg to the diameters of the gearings 12 and 14, the said stoppings and corresponding startings of the machine can be effected each first, second, third, fourth, etc., stitch or revolution of the drive wheel.

Arranged parallel to rodlO, and mounted in the frame of the machine, is a rod 18 which can be pressed downward by the operator by pressure on a treadle connected with lever 19 and whiclnwhen released is forced upward by coiled spring 29 on said rod. In its highest position (Figs. 1 and 2) tooth 20 of lever 7 bears against collar or ring 22 on rod 18 and revents movementof lever 7, while in its owest position as represented in Fig. 3, the collar 22 is drawn below the tooth 20 and the lever 7 is able to swing freely on its axis 21 and the machine is set in motion.

The gears 12 and 14 can, of course, be exchanged for gears of different diameters,- so that the machine shall be thrown in and out of gear at predetermined periods.

Instead of having the rods 10 and 18 arranged one along side the other, as in Figs. 1,

a 2 and 3, they can be arranged one behind the other in bracket 30, as represented in Figs. 6, 7 and 8, where the friction roller 16 is applied to the rod 31 to work in the same manner as rod 10, and behind it operatesthe rod 32 which operates in thesame manner as the rod 18. For this purpose the lever 7 is provided with a plate 33 which engages rod 31, while thelever 7 bears against rod 32, both rods being pushed upward, respectively, by springs 34 and 35.

In order to facilitate the moving of the embroidering fram'e 24 on the table 28, said frame can be supported by friction ballsor ball bearings 26 which can roll within a re-.

cess 27 of the table 28.

What is claimed; is:

1. In a sewing or embroidering machine, the combination of stitch-forming mechanism, a driving wheel, and means for automatically stopping said stitching mechanism after each stitch and automatically starting the same after a redetermined number of revolutions of the y-wheel which latter continuously rotates.

2. In a sewing or embroidering machine,

the combination of stitch-forming mechan-' ism, driving mechanism, means'for automatically and periodically connecting and disconnecting said stitch-forming mechanism and driving means, and gearing intermediate said driving mechanism and means.

3. In a sewing or embroidering machine, the combination of stitch-forming mechanism, a driving shaft for said mechanism,

driving means for imparting movement to sald shaft, means earned by said drlving shaft for connecting said shaft and driving means, a counter-shaft, driving connections between said driving means and counter shaft, and connections between said connecting means and counter-shaft for automatically and periodically connecting and disconnecting said shaft and driving means.

4. In a sewing or embroidering machine, the combination of stitch-forming mechanism, a driving shaft for said mechanism, driving means for imparting movement to said shaft, means carried by said driving shaft for connecting said shaft and driving means, a counter-shaft, driving connections between said driving means and countershaft,'a cam mounted on said counter-shaft and connections between said cam and connectin means for automatically and periodically said shaft and driving means. Y

5. In a sewing or embroidering machine, the combination of stitch-forming mechanism, a driving shaft for said mechanism, a driving pulley for impartingmovement to said shaft, means carried by said driving shaft for connecting said shaft and pulley, a

counter-shaft, driving connections between 2 said pulley and counter-shaft, acam mount-- ed on said counter-shaft, a pivoted lever engaging said connecting means,=and connections between said cam and lever for automatically and periodically connecting and disconnecting said shaft and pulley.

6, In a sewing or embroidering machine, the combination of stitch-forming:-mechanism, a driving shaft for said mechanism, a driving pulley for imparting movement to said shaft, means carried by said driving shaft for connecting said shaft and pulley, a

counter-shaft, driving connections between said pulley and counter-shaft, a cam inounted on said counter-shaft, a pivoted; lever engaging said connecting means, and a rod normally in the path of said lever and acted upon by said cam to automatically and periodically connect and disconnect said shaft and pulley.

7. In a sewing or embroidering machine, the combination'of stitch-forming mechanism, a driving shaft for said mechanism, a

connecting and disconnecting IIO driving pulley for imparting movement to said shaft, means carried by said driving shaft for. connecting said shaft, and pulley, a counter-shaft, driving connections between said pulley and counter-shaft, connections between said means and counter-shaft for automatically and periodically connecting and disconnecting said shaft and pulley, and manually-operable means for moving said connecting device.

8. In a sewing or embroidering machine, the combination of stitch-forming mechanism, a driving shaft for said mechanism, a driving pulley for imparting movement to said shaft, means carried by said driving shaft for connecting said shaft and pulley, .a counter-shaft, driving connections between said pulley and counter-shaft, a cam mounted on said counter-shaft, connections between said cam and means for automatically and periodically connecting and disconnecting said shaft and pulley, and manually-operable means for moving said connecting device.

9. In a sewing or embroidering machine, the combination of stitch-forming mechanism,.a driving shaft for said mechanism, a driving pulley for imparting movement to saidshaft, means carried by said driving shaft for connecting said shaft and pulley, a counter-shaft, driving connections between said pulley and counter-shaft, a cam mounted on said counter-shaft, a pivoted lever engaging said connecting .means, connections between said cam and lever for automatically and periodically connecting and disconnecting said shaft and pulley, and manuallyoperable means for moving said connecting device.

10. In a sewing or embroidering machine,

- the combination of stitch-forming mechanism, a driving shaft for said mechanism, a driving pulley for imparting movement to said shaft, means carried by said driving shaft for connecting said shaft and ulley, a counter-shaft, driving connections etween said pulley and counter-shaft, a cam mounted on said counter-shaft, a pivoted lever engaging said connecting means, a rod normally in the' path of said lever and acted upon-by said cam to automatically and periodically connect and disconnect said shaft and pulley, and manually-operable means for moving said connecting device.

In testimony whereof .I have signed this specification in the presence of two subscribing witnesses.

ROBERT CORNELY.

Witnesses H. C. Coxn, JACK BAKER.

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