US1138015A - Jacquard embroidery-machine. - Google Patents

Description

H. SAURER.

JACQUARD EMBROIDERY MACHINE.

APPLICATION FILED JUNE I0, 1913. 1,1 38,01 5. Patented May 4, 1915.

4 SHEETS-SHEET l.

llllis W W'W THE NORRIS PETERS C0, PHOTO-LlfHu. WASHINGTON D. u

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H. SAURER.

JACQUARD EMBROIDERY MACHINE.

APPLICATION FILED JUNE 10. I913. 1,138,015., Patented May 4, 1915.

4 SHE ETS-SHEET 2.

1H5 NORRIS PETERS CO, PHOTO-H1140 WASHINGTON. D. C.

H. SAURER.

Patented May 4, 1915.

fHE NORRIS F'E"'*ES CO.. PHOTO-LITHO. WASHINGTON. 0. C4

H. SAURER.

JACQUARD EMBROIDERY MACHINE.

APPLICATION FILED JUNE 10. 1913.

1,138,015. Patented May 4,1915.

'6. h. 7 an. W sow-m 3 W THE NORRIS PETERS CO.. FHOTO LITHOU WASHINGTONv Dv C.

UNITED STATES PATENT OFFICE.

I-IIPPOLYT SAURER, OF ARBON, SWITZERLAND.

JACQUARD EMBROIDERY-MACHINE.

Application filed June 10, 1913.

To all whom it may concern:

Be it known that I, Hirromrr SAURER, a citizen of the Republic of Switzerland, residing at Arbon, Switzerland, have invented new and useful Improvements in Jacquard Embroidery-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part-of this specification.

Jacquard embroidery machines are usually provided with means for piercing holes in the fabric which is to be embroidered and is stretched on the embroidery frame. Such means comprise perforators or borers arranged to pierce the fabric several times in quick succession at the same place while the frame and the fabric are stationary, holes being thereby formed in the fabric. If a hole longer than the diameter of the perforator is to be made the perforator is first operated to form a hole in the manner just described while the frame is stationary, and then the frame is displaced, when the per forator is withdrawn from the fabric and is stationary, and thereafter the perforator is operated as before to form. another hole adjacent to and touching the hole prevlously made, the second hole being dlsplacedwith respect to. the first. This operation 1s repeated as many times as may be required to form a hole of the desired length. Usually the controlling mechanismpr acquard and the mechanisms for actuating the perforators and for shifting the embroidery frame are so arranged and interrelated that the perforating can be effected only when the embroidery frame is stationary and that the embroidery frame can be shifted only when the perforators are withdrawn from the fabric and are at rest. In accordance with the present invention, however, the mechanism for actuating the perforators is so constructed and such means are provided, all under the control of the automat or jacquard, that when a long hole, that is, a hole which has a length greater than the diameter of a perforator, is to be formed the timing of the operation of the perforatlng mechanism can be arranged so as to take place simultaneously with the movement of the fabric frame, whereby each perforator,

Specification of Letters Patent.

Patented May a, 1915.

Serial No. 772,743.

having as usual a prismatic cross section with Keen edges, acts during the movement of the fabric and while it penetrates the fabric with a sawing or cutting action. In this way the amount of time required for the formation of a long hole is greatly reduced as compared with present methods, since the formation of the length takes place simultaneously with the movement of the fabric frame instead of requiring, as heretofore, the hole forming operation and the frame or fabric moving operation to be intermitted alternately.

The invention will be more fully ex: plained hereinafter with reference to the accompanying drawings in which two embodiments of the invention are illustrated, one being shown in Figures 15 and the other in Figs. 612.

In the drawingsFig. l is a view in front elevation of so much of a jacquard embroidery machine as is necessary to enable the application of the invention thereto to be understood. Fig. 2 is a top view of the mechanism shown in Fig. 1, some of the parts which are not necessary to the understanding of the invention being omitted. Fig. 3 is a face view of the cam which actuates the perforating devices with some of its associated parts. Fig. 4 is a view in longitudinal sectional elevation on the plane indicated by the line X Y of Fig. 3. Fig. 5 is a view generally similar to Fig. 3 but showing the cam in a different position. Fig. 6 is a view in end elevation of a portion of an embroidery machine, illustrating the application thereto of another embodiment of the invention. Fig. 7 is a view in transverse section of a part of the automat or jacquard mechanism which may be employed either with the construction shown in Fig. 1 or that shown in Fig. 6. Fig. 8 is a view in front elevation of the mechanism shown in Fig. 6, together with the automat or jacquard mechanism, portions of which are indicated by dotted lines. Fig. 9 is a face view cated at A, the frame in which is stretched the fabric at G, and the fabric to be. ems broidered at S. The frame may be displaced or shifted in any suitable manner from the automat A by means of a rack 3 and a rod 4, as disclosed, for example, in an application for Letters Patent of the'United States, Serial N 0. 633,962, filed June 19, 1911. The jacquard needles are also selected and moved underthe control of the jacquard card in any suitable manner and the frame 71 (Fig. 8) in which they are mounted may also be moved in 'theusual manner, as by means of cam disks 2 on the shaft 1, so that, as determined by the jacquard needles, the oneor the other of the shafts 5, 6, 7, 8, 9, 10 actuated forthe performance of the special function inaugurated by it. The shaft 1 of the automat or jacquard mechanism'may be driven by means of a sprocket wheel 11, chain 12 and sprocket Wheel '13 from the shaft 14, which in turn is driven by a chaindrive 15 16 from the shaft 17, provided as usual with pulleys 18 and 19. A sleeve 20 is mounted on the shaft 14 and is adapted to have limited longitudinal and rotary movement thereon, having a long spiral groove engaged by a long spiral thread 21 on the shaft. The sleeve is supported and guided in the hub 22 of a cam disk 23 whichv a variable portion with recesses 26 27 and 28 of greater radial distance from the axis of the shaft than the concentric portion. A roller 29, axially movable in the end of a lever 30, is adapted to be engaged in the groove of the cam, disk 23. The lever arm 30 is secured to a shaft 32 which is mounted in a standard 31 and has secured at its other end a lever'arm 33. Thelatter is pivotally connected at its outer en'dto a slotted lever 34, in the slot of which is engaged a slide block 35,pivotally connected to a lever 36 which can be oscillated for the purpose of changing the position of the slide blockin the slot and therefore the position of the fulcrum of the lever 34. The other end of the lever 34 is pivotallyconnected to the rod Y 37 which is operatively connected through the crank shafts 38 and arms 39 to the rods 40 which carry the rails 41 to which are secured the forators 42, It will be evident that when the roller 29 is engaged in the cam groove the perforators '42 will be moved to and fro three times as the roller 29 traverses the recesses 26 27 and 28 and that when the roller traverses the concentric portion of the cam groove no movement of the perforators takes place. Ordinarily a movement of the embroidery frame can take placev only when the roller 29 is in the con- 7 centric portion of the cam groove and while the roller remains in engagement with the cam groove. A change in the timing of the operation of the perforators, so that it can take place at the same time with the move ment of the embroidery frame, can be efiected in a simple manner by shifting the cam disk 23 through "180 about its axis so that the roller 29 shall traverse the recessed portion 26, 27 and 28 of the cam groove at the time when the movement of the embroidery spect to the shaft 14 which is necessary to effect a change in the timing of the operation of perforating with respect to the operation of shifting the fabric frame is efiected through the cooperation of the long spiral thread 21 on the shaft 14 with the sleeve 20 when the latter is shifted longitudinally. This longitudinal shifting is effectedv through the engagement with a circumferential groove44 on the sleeve 20 of a roller 45 on a lever arm 46 which is secured to a sleeve shaft 47. A second arm 48 on the sleeve shaft 47 is connected by a rod 49 with a crank arm' 50 on a shaft 51 which,

under the control of the automat, is rotated at the proper time througha small angle by a worm gear 52 which engages a correspond ing wormon the shaft6 of the automat. The partial rotation of the shaft 51 produces a partial rotation of the shaft 47' and a movement of the lever-arm 46 from the position shown by full lines in Fig. 4 to the position shown by dot and dash lines and the consequent longitudinal movement of the sleeve 20 produces a rotation of the cam disk 23 through 180 with respect to the shaft 14, that is, for the initial position of the shaft 14, a change of the cam from the position shown in Fig. 3 to the position shown in Fig. 5. In this position of the cam the successive piercing movements of the perforators take place while thefabric frame is moving and long holes are therefore cut in the fabric In the construction shown in Figs. 1-5 the desired change in the timing of the perforating operation is effected by the shifting of the cam 23 with respect to its driving shaft 14, but itwill be obvious that the ino desired result can be accomplished in other ways. Thus, in the construction shown in Figs. 6-12, the cam disk 23 is fast on the shaft 14 and there are supported in position for engagement with the cam groove, at 180 apart about the axis of the cam, two rollers 29 and 29 The roller 29 is brought into engagement with the cam groove when the fabric is simply to be pierced, while the roller 29 is brought into engagement with the cam groove for operating the perforators for cutting. The roller 29 is mounted on a rod 58 which is movable longitudinally in the end of a lever 5a. The latter is fixed to the shaft 32 and operates the perforators through the same connections and in the same manner as described with respect to the construction shown in Figs. 15.' The roller 29 is mounted on a rod 55 which is movable longitudinally in the end of a level 56. The latter is pivotally mounted on a stationary bearing 57 and is provided with a rearward extension 58 which is connected by the rod 59 with a lever 54. Pins 60 and 61 on the rods 53 and 55 respectively enter slotted holes in a lever 62 which is pivotally mounted on a stationary bearing 63. One end of the lever 62 is connected with a rod 64 which is pivotally attached to the middle part 65 of a lever 66. One end of the lever 66 is connected by a rod 67 with a crank 69 on a shaft 6 of the automat. The other end of the lever 66 is connected by a rod 68 with a crank 70 on a shaft 7 of the automat. The two cranks 69 and 70 are offset angularly with respect to each other so as to produce, through the described connections, the desired movement of the lever 62 in one direction or the other from its middle, neutral position shown in Figs. 6 and 10. If the shaft 7 is caused, by a hole in the jacquard card, to rotate through a small angle from the position shown in Fig. 6, then the roller 29 is moved into engagement with the cam groove in the cam disk 28, as indicated by the position of the lever 62 represented by dot and dash lines in Fig. 12, and the perforators will then be operated for piercing the fabric. If, on the other hand, the shaft 6 is caused, by a hole in the jacquard card, to rotate through a small angle from the position shown in Fig. 6, the roller 29 is moved into engagement with the cam groove, as shown in full lines in Fig. 12, and the perforators will then be operated for cutting the fabric while it is moved with the frame.

Various other mechanical devices for accomplishing the desired purpose will suggest themselves and it is to be understood therefore that the invention is not limited to the particular constructions shown and described herein.

I claim as my invention 1. In an embroidery machine the combination of perforators, an operating cam, a driving shaft therefor, transmitting mechanism between the cam and the perforators, and means for shifting the cam angularly with respect to its driving shaft.

2. In an embroidery machine the combination of perforators, an operating cam, a driving shaft therefor, a sleeve interposed between the shaft and the cam and free to move longitudinally with respect to the cam but compelled to rotate therewith and having a long spirally threaded engagement with the shaft, means to shift the sleeve longitudinally and transmitting mechanism between the cam and the perforators.

In testimony that I claim the foregoing as 7 my invention, I have signed my name in presence of two subscribing witnesses.

EUGENE SoABEL, RANDALL ATKINSON.

Qepies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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