US1772993A

US1772993A - Embroidering machine

Info

Publication number: US1772993A
Application number: US306572A
Authority: US
Inventors: Grutter Friedrich
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-03-10
Filing date: 1928-09-17
Publication date: 1930-08-12
Anticipated expiration: 1947-08-12

Description

Aug. l2, 1930. F, GRUTTER 1,772,993

EMBROIDERING MACHINE Filed Sept. 17, 1928 2 Sheets-Sheet l 2r ,9 0 2 I8 2o 5 I 5 F n f2\ l 2? w w O" I -25 /NVE/VTR:

Aug. 12, 1930. F. GRUTTER 1,772,993

EHBROIDERING MACHINE meg sept. 17, 192e 2 sheets-sheet 2 Jresetear aeg. 'ia ieee unire gs-rares rra-nr ortica FRIEDRICH GR'TTER, OF SENNWALD, SWITZERLAND, ASSGNOR, BY MSNE ASSIGN- l MENTS, TO HENRY WACKER, F v1\T EW YORK, N. Y.

mannornnnrne MACHINE Application led September 1'?,A 1928i, Serial No. 306,572, and. in Switzerland March l10, 1928.

` rlhe present invention relates to a machine for producing a plush-like covering on webs of fabric by means of reciprocating thread needles associated with ailo'op holder each of which needles 'for the purpose of forming loops pierces the web of fabric. It is known to arrange a series of loop holders turnably or movably in guides, that is to say displaceplaceable in guides are distanced so far fromI the plane of the web of fabric to be treated that small loops such as required for the legs.

of house shoes or for embroidered trimmings cannot be executed therewith.

in contradistinction to the known constructions the present invention provides for a series of loop holders to be mounted on a common support,""which`for the purpose of holding the thread loops temporarily by y means of the loop holders performs the movementsrequired therefor. Y

This construction enables the production of thread loops of equal lengths in any size consequently also of relatively small loops.

The drawing serves for ,the illustration of one constructional example of the subject l matter of the invention, wherein Fig.. 1 is a side `,elevation of a two level embroidering machine with the upper part removed, partly in section;

Fig. 2 is an elevation of a detail of Fig. 1 in sec-tionl on line ll-ll of l? ig. t on a larger scale;

Fig. 8 is a section on line lll-lll of lti 2; I

\ m g. 1 is a partial side view from the left hand side of Fig. 2;

l* gs. 5 and 6 showperspective views which serve for explaining the manner of opere1 ation. Y

Referring to the drawing yC denotes the main driving shaft of a two level shuttle embroidering machine alteredr for the present purpose. D is an eccentric for the actuation of a lever 15 which' imparts an up and down movement .to the device for holding the f imparts a reciprocating' movement to they needle bars 1 which carry the needles 2.

rlhe two reciprocating needle bars 1 are equipped with 'thread needles 2 arranged in the Vmanner to repeat the stitch. To the frame rails 8 of the machine, by means of supports 4:, two rules 5 are secured one of which is associated with the irst level and the other with thefsecond level. 0n the two rules 5, opposite the needles 2 holders 6 are arranged vto which, by means of a screw 7, a' small cantilever 8 is secured. 'lhe cantilevers 8 on their end adjacent the web of fabric A to be treated are provided with a head 9 which serves as a back stop for the web of fabric A iXed in the web frame of the machine (not shown) while the needle '.2

pierces the web of fabric. Ylhe distance of Ithe individual stops 8, 9 from the web of fabric A is adjustable at therule 5, in that each holder 6 is secured to the rule by means of a set screw l0.

Above eachl of the two frame rails 3, further, a rule Y1l is arranged, which is secured to supporting pins,12, a plurality of which are provided over the whole length of the L.

rule. lhe individual supporting pin 12 is -f'lhe coupling member 16 has a groove into which projects apin 17 ofan arm 18'.

rlfhe arms 18 of one and the same level are secured to a. common shaft 19. The individual shaft 12 is carried in bearing supports20 secured to the respective standard posts of the Imachine. The two shafts 19 are intercomu nected by rods 21v linked to the end oil levers 21 secured tothe shafts 19. 'lhe lower shaft 19 on its end shown in lllig. lis provided with a handle-bar 22 by means olz which this shaft is adapted to be turned in order to enable a longitudinal displacement oi? the pins 12 in the guide members 13 in either direction to a greater or smaller extent. Thereby the dis-` tance ot the rule l1 trom the plane et the web of fabric is adjustable and correspondingly also the loop holders 23 mounted on the rule 11, for the purpose ot regulating the length et the loops. Vllhe number ci loop holders is equal to the number of 'thread' needles. 'lhe individual loop holder 23 is formed by an offset, pointed round bar and adjustable in the vertical direction relatively to a carrier pin 25 by means oil a screw 24.

` rlhe carrier pins 25 are arranged so as to rbe the needles 2. lduring the operation of theJ adjustable in their longitudinal direction transversely to the rule'll by means ot set screws 26; the adjustability ot the carrier pins 25 and et the loop holders 23 provided for, enables a regulation oi the position o the latter relatively to the web oil tabric A and in reference to the path through which move machine the needles 2 pierce the web el tabric il. periodically (Fig. 5) whereupon the upwardly moving loop holders 23 each time enter between the respective needle 2 and 'itS thread B in order to hold the thread .loop being created on the web ot fabric on the retraction ot the needle, whereby the length cie the loopis defined in that the individual Vloop holder 23 on its upward movement enters within the range ot 'the needle 2 behind the head 9 et the back stop in a place where the fweb o'l3 "fabric A. is supported Afterwards the holders 23, in consequence of the `downward movement or the rules 1l are retracted trom the finishedthread loops and then the web trame carrying the web oil fabric is displaced by means ci the pantograph moved according to the pattern card, whereupon the 'the stitch is also easily edectedn that the loop holders'23 and the supports 84.-9, for the web of fabric are readily detachable from the

respective rules

11 and 5. 'y The vertical rod 21 can also be arrangedto cooperate in such a manner with a scale 27 to permit reading on the length ot the thread 4loop eiectedimmediately at the point-ot an index 28 connected to the rod 2l.;

arranca ll claim: f

1. ln a machine :lor producing plush like coverings on webs of fabric, the combination ot a series oty reciprocating thread needles which for the purpose of forming loops are arranged to pierce the web of fabric, with a series ot loop holders,each thread needle being associated' with a corresponding loop holder, an adjustable common movable carrier en which said loop holders are mounted, means adapted to impart a reciprocating movement to said carrier relatively to said thread needles lor holding the thread loopsV temporarily, stationary stops 'lor the web oil 'fabric' provided within the range et movement orn the thread needles, and means to adjust said carrier relatively to said stops in order to vary the length oit, the loops.

2.I ln a machine 'lor producing plush like coverings on webs et fabric, the combination et a series of reciprocating thread needles which 'lor the purpose or forming loops are arranged to pierce the web of fabric, witha series et loop holders, each thread needle being associated with a corresponding loop holder, a common movable carrier on which said loop holders are mounted, means adapted to impart a reciprocating movement to said carrier relatively to said thread needles for holding the thread loops temporarily, and means to adjust the loop holders individually in the direction perpendicular to the plane of the web ot fabric to be treated.

3. ln a machine for producing plush like coverings on webs or fabric, the combination et a plurality of series otl reciprocating thread needles which :tor the purpose ot forming loops are arranged to pierce the web of labric, with a plurality ot series ot loop holders, each thread needle being associated with a corresponding loop holder, a plurality 'of movable carriers on which said loop holders are mounted each being common to a series of loop holders, means adapted to impart a reciprocating movement to said carriers relatively to said needles for holding the thread loops temporarily, coupling means for intcrsimultaneous adjustment of said carriers and of all of the loop holders together respectively with respect to the plane ofthe web of i'ab-' ric to be treated in order to regulate the length of they loops.

connecting said carriers, and means for the individually adjust the loop holders to and from the fabric and means to reciprocate the carrier with the loop holders thereon.

5. ln amachine-for producing loop piles on fabric lwebs,the combination with a series of reciprocating needles, a carrier, and a loop holder for each needle on the carrier; of `means to simultaneously adjust thedistance of the carrier from the fabric during the operation of the machine to vary the length of the loops and thereby the pattern effect.

d, ln a machine for producing loop piles on fabric Webs, the combination with a series of reciprocating needles, a carrier and a loop holder for each needle on the carrier; of means to simultaneously adjust the distance of the carrier from the fabric during the operation of the machine to vary the length of the loops and thereby the pattern eect, and means to individually adjust the distance of the loop holders on the carrier. f

i'. ln a machine for producing loop piles on fabric Webs, the combination With a series of reciprocating needles, a carrier, and loop holders on the carrier cooperating With the needles; of mechanism for operating the carliu rier, a scale on the machine indicating the loop lengths, an indicator on the operating mechanism associated with said scale, and manual means to Vary the distance of the carrier from the fabric to vary the loop length and indicated by said indicator and scale.

8. ln a machine for producing looppiles on fabric Webs, the combination With a series of reciprocating needles; of a series of vertically movable loop holders, one for each needle, and a series of back stops individually adjustable, each having a laterally projecting head forming an angle and over which the needle passes, said loop holdersmoving in said angle. f

ln testimony whereof l have signed my name to this specication.

rnrannrc entrrnn.