US1063492A

US1063492A - Jacquard embroidering-machine.

Info

Publication number: US1063492A
Application number: US704105A
Authority: US
Inventors: Robert Zahn
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-02-05
Filing date: 1912-06-17
Publication date: 1913-06-03
Anticipated expiration: 1930-06-03

Description

R. ZAHN. JACQUARD BMBROIDERING MACHINE.

APPLICATION FILED JUNE 17, 1912.

Patented June 3, 1913.,

mmm.

STATE@ PATENT @Fh-1113112.

JACQUARD EMBRGEEXNGMHNE.

origina; application ales seaman' telo, serias. no. @nasca Divas-a and this appncanon and .iw 1 1912. serial ne. malos.

To all whom it may conf-cm.' y b Be it known that 1, ROBERT ZAHN, a subliect of the German Emperor, residing at lllauen, Kingdom of Saxony, Germany, have invented certain new and useful improvements in Jacquard E1nbroidering-Machines, of which the following is a specification.

The invention relates to em roidering machines of the automatic type and more particularly to= a mechanism tor adding up or totalling the large and the Ismail move-l ments of the embroidery frame'and l1s a division lfrom the application 542,305 tiled lieb. the 5th, 1910, patented July 2, 1912, No. 1,031,159. The transmission of movement to the embroidery frame in different directions is effected automatically in the manner described and illustrated in .the above named original application by means of jacquard controlled allotting members.

1n the accompanying drawing which forms a part of this specification and in which similar reference characters denote comel spending parts, a lateral elevation is shown, illustrating more or less diagrannnatically an automatic embroidering machine according to this invention.

With reference to the drawing l denotes a horizontal slide and 11 a vertical slide. From these slides tbe various movements are transmitted to the embroidery frame (not shown) by means vof a toothed slide 6,

.coperating with gear wheels 61 and rack ai,

as ful-ly described and shown in my Letters Patent above referred to and whereby tire direction of movements is detcrmir'ied. The' slides are operated from allotting members comprising horizontal and vertical coupling rods, 2, 21 which are pivotally connected to rocking levers 3, 31 in such a manner that the coupling rods 2, 21 are' given diderent throws, according as they are arranged farther from or neare to the fulcrums 11, 411 of their respective levers 3,31. The coupling rods are actuated by bars 5, 51 to be coupled to their respective slides 1, 11. For coinbining or totaling thc different. movements imparted to said slides 1, 11 l provide the following mechanism. Between the slide tail 11l and the toothed slide 6 from which latter movement is transmitted to the aiore# Spcoica tion of Lettere Patent..

vas the' slide 1.

are respectively carried by the tail 1 ot slide 1 and by the slide 6. The upper odg.; of the plate 7 carries a flange 12 which capable of sliding longitudinally in :i groove 131 provided in a bar 13 formed at the tail end of the slide 11. On the slide 1 being reciprocated the flange 12 will be caused to slide in the groove 131 and on the slide 11 being reciprocated the two slides l, t3 are caused to approach or to move away from one another. I

The operation of this mechanism is as follows :4 Assuming that the slide 1, 11 is caused to perform a horizontal movement while the slide 11, 13, is stationary. The flange 12 is thus caused .to reciprocate in the groove 131 of the piece 13 of the slide and the slide 0 is made to travel exactly the same distance Supposing now the slide 1, 1n to be stationary and the slide 11, 13 to be Gti caused to make a vertical movement, it'will be seen that plate 7 will reciprocate on the blocks 10, 11 in the respective slots 8, 9 whereby the'slide 6 will receive a fraction of the moyement of the slide 11, 13, the ratio between the two movements depending upon the angle of inclination of the slots S, 9.. Assuming now this ratio to be 1:10

'and the slides 1, 1a to travel horizontally a 'distance of say 5 mm. and simultaneously ,the slide 11, 13 to perform a vertical movement of say 3 mm. These two movements are both transmitted to the slide 6 which is thus moved to the extent of 5.3 mm. owing to the throw of 5 min. being directly transmitted to the slide 6, whereas the throw of 3 nun. owing tothe inclination of theA slots 8, 9de reduced to the tenth part of the movement performed by the slide 11, 13. In this manner the throwot' the slide' (3 may be varied at will vaccording to the operation of Athe bars 5 and 51 bringing about the coupling of the rods 2,21 under the action ofv the jacquard mechanism. Its shortest dis-f,

placement 0.1 mm. 4the slide 6 receives in the event of the

slide

1, 1 being stationary and the slide 11, 13 being' drawn down by the coupling rod 21 which in the drawing is farthest to the left, that is to say, which is nearest the fulcrum 41.' A throw of 0.9 mm.v is transmitted to the slide 6 upon the slide `1, 11l being again stationary while the slide 11, 13 is drawn down by the coupling rod 21 which in the drawing is farthest to the right, that is to say, remotest from the amples and the question as to whether the largest 9.9 min. dependsv entirely on circunif'ulcruni 41. The throw ofthe slide 6 comes l min. when the slide l, 13 is stationary and slide 1, lL1 is moved to the right by the coupling rod 2 which in the drawing occupies the lowermost position. The largest possible throw of the slide is 9.9 mm. and is attained when both slides l, l and 1, i3 are moved by the couplingr rods 2 and 2l respectively which are remotest from thel respective fulcrums 4, 4*.

The above numbers are of course mere exlshortest throw should be 0.1 mm. and the stances and on the minimum throw chosen under particular conditions herein.- Thus ifpfor instance, for the Aminimum throw 0.25 anni. is chosen the corresponding maximum throw would be 24.75 mm.

What I claim and desire to secure by Letters Patent is:

1. -In an automatic embroidery machine l l,mechanism for combining the various movei ments of said allotting members and eomi 4-prising an intermediate member provided with oblique guides and movable parallel to the direction ot movement of the driven member, said intermediate member beiiwi journalcd in one of the allotting members with which it is movable in a transverse direction relative to said driven member.

2. In an automatic embroideryv machine, the combination with jacquard controlled horizontal and vertical allotting members and a'driven member, ot a mechanism for' combining the different movements of said allotting ineinbeis and comprising an interinediate member between said allotting members and said driven member having slots at an acute angle with respect to each other, blocks carried by one of said allotting members and by said driven member and engaging said slots` and a connection between said intermediate member and said other allottinpT member, whereby the intermediate member is caused to move transversel)v to the first named allotting member and driven member to draw the same together or apart and which permits the said intermediate member to move parallel to the said first named allotting member and said driven member.

In testimony whereof I aflix' my signature in presence of two witnesses.

Y ROBERT ZAHN. 'itnesses A. Civii'ris lto'iii, Ronicii'r Il. Ninn.