US1266747A - Automatic embroidering-machine. - Google Patents

Description

R. ZAHN, DECD. A. IIIETzscH. ADMINISTRATOR. AUTOMATIC EMBROIDERING MACHINE. APPLICATION FILED IuNE I. I9I2.

' ROBERT ZAHN, 01E PLAUEN, GERMANY; ALFRED RIE'IZSCII ADMINISTRATOR 0F SAID noteer zei-In, nisc'nnsnn.

ATOIIATIC EMBROIJDERDIG-MACHIE.

Specification of Letters Patent.

Application filed .I une I", 1912. Serial No. 701,016.

To all 'whom 'z't may concern."

Be it known that I, ROBERT ZAHN, a subject of the German Emperor, residing at Plauen, Kingdom of Saxony, Germany, have invented certain -new and usefulvllm p'ovements in Automatic Embroideringachines, of which the following is a specil `cation.

The great economic value of an automatic Y (jacquard) embroidering machine lies in that without personal or direct help in a given time and quantitatively more work is produced than with an ordinary embroidery machine and that qualitatively the work is as perfect as its pattern whose production has required much time and a skilled workman.

Yet 'the eciency of the automatic embroidering machine suers a good'deal on account of the fact that each time one set of embroidery implements is changed for another, particularly in passing from embroidering to boring, an interruption of the work is occasioned because the operating heavy'masses of one set must be arrested and those of another set started.

This invention has for its object to remove i these drawbacks and consists in that in lieu of completely arresting the operating implements the same are given short idle motions while the main shaft of the machine and all cams fixed thereon remain in action.

'Io make my invention more clearthe same is more or less diagrammatically il1us trated in the accompan in drawing forming a part of this speci cation Figure 1 be- 1n chine and Fig. 2 a similar view of some parts thereof.

With reference to the drawing 1 denotes the main shaft of the embroidering machine on which are fixed the shuttle operating cam 2, the needle operating cam 3 and the thread tension controllin cam 4. The cam 2 operates the bell crank ever 5 one arm of which is formed to a loop 51. The cam 3 operates a rod 6 which is connected to looped bell crank levers 7 and the cam 4 opf erates a' rod 8 which is connected to a looped bell crank levers 9. The boring implements e are indicated by C and the shuttles by S.

The jacquard mechanism is indicated by a boxl 10 and o erates, in well known manner, a rod 11 w 'ch is connected to one arm of a three armed lever 12. Une of the other a diagrammatic view of t e entire ma-A three arms of this leverv 12 by a rod 13 is conncted to a rod 14, which at one end is pivoted `to the shuttle guide 15 and at its other end slidably engages the loop 51 of the lever 5. rIhe third arm of the lever 12 by a rod 16 is connected to one arm of a bell crank lever 17 the other arm of which by a setof rods 18, 19, 20 and 21 is'connected to rods 22 and 23. The rod 22 is connected at one end to the needle bar 24 and at its other end it slidably engages the loop 71 of the lever 7 and the rod 23 is connected at one end to the thread take up lever 25 and at its other end slidably engages the loop 91 of the lever 9.

Thus the jacquard controlled rod 11 has link-motion connections with the various Patenten tray ai, raie.'

embroidering implements and enables the other Iimplements, as those for boring, are

rendered temporarily ineective. rlfhus when passing from embroidering to boring, the jacquard mechanism draws the rod 11 downwardly, whereby through the medium of the lever 12 and the rod 13, the rod 14 is displaced within the loop 51 toward the fulcrum of the lever 5 so that the motion of the rod due to the oscillation ofthe lever 5 by the respective cam 2, nand consequently also that ofthe shuttles S will be reduced to a minimum.

Simultaneously the rod 11 through the medium of the levers 12, 17 and rods 18, 19, 20, 21 swings the - rods 22, 23 in the loops of the bell crank levers 7 and 9 toward the fulcrums of the latter thereby shortening the stroke of the needle bars 24 and that of take-up levers25 so that their action as well as that of the shuttles during the'boring is ine'ective.

:What I claim and desire to secure by Iaetters Patent is: v

1. In an embroidering machine, embroiderin implements, perforating implements, a sing e shaft rotating continuously in one direction whereb the said implements'are operated, means including said shaft for imparting to the different parts of the embroidering implements an idle or ineffective motion without stopping the rotation of said shaft and means including said shaft for imparting an idle or ineective motion to said perforating plements without"v stopping the rotation of said shaft.

multaneously rendering ineffectivethe said i stitching mechanism needles, shuttles and take-ups,

simultaneously rendering ineffective the different parts .of the stitching mechanism without stopping the rotationof the shaft. In ajacquard embroidering machine, a stitching lmechanism including stitching needles, shuttles and take-ups, a jacquard y apparatus, a single shaft adapted to rotate contlnuously in one direction and having a series of camsfor actuating the said several parts of the -stitching mechanism and a single means actuated from rthe said jacquard apparatus for simultaneously rendering ineffective the said several parts ofthe stitching mechanism without stoppingthe rotation of said shaft.

4. In a jacquard-embroidering machine, a including stitching a yjacquard apparatus, a single shaft adapted tol rotate continuously .in one direction, a series of cams thereon for actuating the said several parts of the mechanism and a single means actuated from the said jacquard apparatus for siseveral parts of the stitching mechanism withoutstopping the rotation of said cams.

5. In an embroidering machine, driving` means, a stitching mechanism including needles, shuttles I'and thread take-ups, ad-

each of said differjustable means between ent 'implements of the stitching mechanism and said driving means and a single means for simultaneously adjusting all said aforenamed means. I

6. In anembroideringmachine, driving means, a 'stitching mechanism including needles, shuttles and thread take-ups, link motion connections between said different implements of the stitching ,mechanism and said driving means and a single means for simultaneously adjusting all said link motion connections.

7. In an embroidering machine,`a stitching mechanism including needles, shuttles and thread ftake-ups, a single continuously rotating shaft, adjustable means between each of said implements of said stitching mechanism and saidl driving shaft and a single means for 'simultaneously adjusting all said aforesaid means without stopping the rotation of said shaft. v

8. In a jacquard embroidering machine, a Lstitching mec anism, including needles, shuttles and thread take-ups, ay single continuously rotating shaft, link motion connections between said shaft and each of the implements of said stitching mechanism, and a single jacquard controlled means for simultaneously adjusting all said link motion nections. l

9. In a jacquard embroidering machine, a

stitching mechanism, including needles,

shuttles and threadtake-ups, a single contin- ROBERT ZAHN. Witnesses A. CURTIS ROTH, ROBERT H. Num.

and each of the im-` plements ofv said stitchin my signature'

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