US1674217A - Circular-knitting frame - Google Patents

Description

June 19,1928. 1,674,217

F. NEVEUX CIRCULAR KNITTING FRAME Filed March 9, 1923 l u I v @34 [iii Z fir7fiWw Patented J 19523: i

.aonruna'ro xmvnux, or' mvom, ITALY, AssIGNon 'r0 0. m. 1. m. ormcnm ccanton nnos'rnm MOGLIERIA, or roam, ITALY, A comr.

oIncuLan-xm'rrmo FRAME.

Application filed March 9, 1923, Serial No. 624,003, and in Italy March 17, 1922.

Knitting frames heretofore used, with inclined loop wheels of the French type, i. e.

in knitting machines with inclined loop wheels the knocking over device could not be suitably-located internally of the loo wheel in order to operatethe movable sin ers as reqilired b the elastic nature of woolen and silk threa s.

.Th'e first object of this invention'is 'to enable the knocking over cam or other device to knock over the stitchin the same instant in which the loop is being released by the movable sinker in the loop wheel. Such an object is realized according to this invention by suitably shapingthe movable sinkers and applying a fixed presser in lieu oi the usual rotating presser. The shape of the movable sinkers is therefore the mainobject of the present invention. I

Furthermore, since the fixed presser, under which the'needles pass and have their beards pressed, would not permit the knitting of twilled or ribbed work, as said presser would y press all the needle beards, the present 111 vention has for a further object the provision of a sort of movable additional heel or tail-piece to be applied to a certain number of the movable sinkers in the loop wheel, as desired in connection with the work tobe manufactured, that will serv'e as intermedi- 5 ate members between "the fixed presser and needle beards, sothat said presserwill 0 erate said tailpieces to press the correspon ing needle beards. v

Figure 1 shows the special sinker accord mg'to the resent invention, Fig. '2 shows a sinker-modified by the addition of the movable heel, Figs. '3 and-4 are respectively. a side elevation and a sectional vertical view taken. on line A -A Fig. 3 of said additional' heel. Fig. 5 shows the machine and an upper notch 2 near one end, engaging a the usual knitting machines with radial loop wheels, 15 Le of the German circular type. However,-.

successively and indis'crimate,

to be operate helical spring; 23.

the manner in which the invention is used thereon. Fig. 6 is a view of. a portion of Fig- 5 on an enlarged scale showing the relative positions of the sinkers, the needles, the knocking-over devices and the stationary cam 20. K

Referring first to Figs 1, each of the sinkers is shaped as a blade 1 horizontally mounted in the loop wheel, provided with.

rotatable plate 3 on the loop whee said plate keeping the sinkers in position to oscillateabout its periphery. The sinkers are arranged and kept in the position described about the plate 3 by means of a helical spring 4 bent to form a ring, whileanother helical spring 5 similarly arranged enga es all of the movable sinkers 'near the middle transversal plane, so as to press them against the edge of another disc 3' in the loop wheel, said second disc being shown in Fig. 5 of the drawing.

I In Fig. 5, 14 is a rotating drum carrying on its upper face a series of circumferem' tially arranged needles 15. The loop wheel consisting of rotatable disks 3 and 3' and sinkers 1, is mounted upon a shaft 25, which in turn is rotatably supported by a "stationa ary bracket 16 and isldriven from the drum 14 by means of the rack 17 and gear 18. A. fixed cam 19 is arranged to extend downwardly above the sinkers in their lower po sition and to force them down between the needles to form the loops; Since the loo wheel rotates on an axis which is incline relatively to the radius .of the drum 14 the threadwill be drawn under the beards of the needles without the usual longitudinal movement of the sinkers. A .second stationary cam or pressei' 20 is arranged to extend downwardly from. the frame 16 and to press down the beards of the needles in I the region offrecess 7 of the sinkers. The usual knockin' -over devices 21 are arranged dby ,the fixedmember 22 to 100 in the' same instant knock over the stitches as the loops are being released-bythe movable sinkers. The knocking-over devices are maintained in position onthe drum bya The sinkers are hook-shaped at '6 at their opposite end, said hooks being, turned outwardly as regards the loop wheel, and .as the drawing shows the lowermost sinker in the wheel, the hook shown in the drawingturns no .wheel downward. The sinkers are acted upon at their forward ends above the hook shaped portion 6 b a cam 19, designed to force them into t e spaces betwen adjacent needies, 80 as to form loops and displace them I towards the needle beards where the newlyformed loops will be landed by the loops of the fabric upon operation of the knocking over device 21.

' Such a displacement is usually effected by means of a horizontal cam causing eac sinker: in the loop wheel to move en dwise in its plane, say radially of the knitting machine or axially as regards the loop wheel; this working however does materially hinder the speed of the machine.

The knittin machines of the type disclosed herein 0 not require any longitudinal displacements of sinkers, since the loop I orms a rotatable unity, turning on an axis inclined as regards the knitting needles thus enablng the highest speeds to be attained. Sinkers are arranged on the loop wheel with their notches or indentations 2 engaging the edge of the plate 3, so that the lowermost sinkerwill be at any time radially disposed of the knitting machine, so as to be easily inserted between two adjacent needles.

By this arrangement, in the knitting machine with inclined 100 wheels, the advantage is obtained that t e sinkers automatica 1y, due solely to the rotation of the loopwheel, force the loops from their initial lace:i on the shank of the needle toward the ar a Referring now to Fi 1, showing the par-. ticular shape of the sin er which is the prin-.

cipal ob'ect of this invention, this sinker is provide with the usual parts 1, 2, 3, 4, 5, 6

provided with heels or tail pieces 8 (see Figs. 2, 3 and 4), each having a air of holes 9 and 10 and referably groove lengthwise at the underside as shown at 11 in Fi 4.

A pivot pin 12 fitsin the hole 10, while a relatively small pin 13 extends into the hole 9, thus allowing the tail-piece to oscillate freely between the positions indicated rwell known in the knittin art.

spectively in solid and in dotted lines in Fig. 2. By thus providing the loop wheel with sinkers shaped as shown in Fig. 1 and certain others shaped as shown in Fig. 2, the needlebeards are not indiscriminately pressed down by the fixed presser and it is possible to make any desirable ornamental or fancy work. This will act selectively on needles to produce ornamental stitches as is The sinkers are arranged in the loop wheel at a distance apart from each other, so as to allow a slight clearance between their front ortions for the needle beards, this space bemg suflicient also to permit the use of sinkers with tail-pieces, as shown in Fig. 2, each tail piece being in the same vertical plane as the needle beard to be pressed. The tail-. pieces will thus take the pressure of the fixed presser and close the needle beard in 7 ers constructed to permit the beard presser to directly contact with the needles, and

other sinkers disposed at. intervals provided with a recess'near the forward ends thereof as. I

and provided with an oscillating tail-piece at one side, this tail-piece acting as an intermediate member between the fixed presser. and certain of the needle beards. 1

2. In circular knitting machines of the French type having a loop wheel for sinking loops with a knocking-over device and a fixed presser adjacent said loop wheel,

sinkers constructed to permit the beard presser to directly contact with the needles, and other sinkers disposed at intervals provided with a pair of laterally extending pins and an oscillating tail-piece having a hole fitting one of the pins on the sinker and another hole loosely surrounding the other pin to allow the tail-piece to oscillate freely around the first-mentioned pin, the tail pieces actin as intermediate members be tween the iiired presser and certain of the. needle beards.

In witness whereof, I have hereunto signed my namein the presence of two subscribing witnesses.

FORTUNATO fixed presser adjacent said loop wheel, sink- GERTHFKGATE er ceeeec'ri'ee.

w re No. 1,674,217. Granted the 19, ms, to

westerners Neverix.

lit is hereby certified that the name ct the-assignee in the above numbered patent, was erroneously written endprinted as "0. I. M. Otticina Meccanica itedustria Moglieria'Y, whereas sai d'neme should have been written and printed as "G. M. l. M. ()tticina'hicccanica ihdustria Ma'glieria", as shown by the records of assignments in this office; and that the said Letters Patent shouid be read with this correction therein that the same may conform to the record of the ease in the Patent Office.

Signed/and sealed this 28th day of August, A. D. 1928.

. Y r M. J. Moore,

(Seal) Acting Commissioner of iatents.

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