US2121994A - Stop feed plug for textile knitting machines - Google Patents

Description

June 28, 1938. c. STRZALKOWSKI I 2,121,994

' STOP FEED PLUG FOR TEXTILE KNITTING MACHI NES Original Filed Feb. 10, 19:56

INVENTOR jAnother object o'fnmyninvention'is Patented June 28, 1938 v ensues S t rz"allrowski,f Milwaukee; wish; 7T

10,1936, Serial N .1, 63,195

I This invention appertains to knitting' niachines, and more particularly to pa novel appli- ,a ncefr use in conjunction withfullsfashiond stocking knitting: machines.

U As is .Wellknown' the standard a,-

chine generally", includes" (for. the ,Le gge rZQ I eighteen stockingknittingsectionS and each settion embodies seven or more, thrfead"carriers. Considerable Waste takes place' wl'1 enf ailiread breaks, as it is desirable:tocontinuethe knitting operation, and all of the legs or'ffeet (as thec'ase may be) on the machine are made befor attmpt- ,ing to remedy ,the break; and thus; the knitting ioperation and theflieed' of .the thread; continues Ionthe sectionhavingthe broken thr'ead. Con sequen'tly, the stocking knitted by the section with the broken thread isruined and muStdbe dis- "carded as waste. Als'o,1 the' broken thread is" liable to become entangled, necessitating the'rerthreadling ofthesection, whichis a lengthy andtedious op ati n. 1 It is, therefore, one offthe primaryobjectsof my'invention to provide novel means ,rorspopping 'the feed of the thread atjth'ei thread'fcarriers of M ,one section, of the knitting machine when a thread i "breaks in said section tofeffejctivelypreventsthe 'waste of thread and the necessity of, r-threadin'g thejsection. .r

I ,Another salient objectf o fjmy invention" is the I provision of means associatedwithfthfthread -50 ,carriers for engaging the threadv i nf'the' thread gui e tubes .of the carriers randflwithoutlnjury I against movement and displacement,

985 'a member entirelyindependent of sth e fknitting machine adapted to be manually' 'place' d j on and removed from the machine rorqrr etion ny a;- 7

'ga'ging'the thread and the thread arrler, wherebyno obstructions orprojeotingj portions will be formed on thethread-carrier, the memberbeing formed from cushionin material sojthatinjury to the thread and the thread-carrier nfill be prevented. I I j I f' ;Y Y

A'jfurther objector myinventionfl is the pr o vIi r 45 sion of removable members adapted'to be wedged into the guide tubes of the carrier s' ror firmly' 60 with full-fashioned st ocking knitting machines,

to said tubes, sonas toyfirmjly'hold the hr s which will be vdurable and eflicient in use, one that lfbejsimplel and easyjto manufacture, and one hi canbe placed upon themarketat an exv itl'i' t. ester and .otller objects in view,f, t he in- 5 .vention consists in t'lie novel construction, ar-

-,.r em nt nd ier ati n of'par asw be jhe'rei'nafter mbr specifically; described, claimed,

"and v ustrated" e accom panying I drawing in .v ,10 Figu re l isa fragmentary PBISPGCHVB'VIQW of apart; of onesection or. a fullf fasliionedfistock- .ing knitting; machine.

Figur e'Zis 1a fragmentarygdetail, side elevation illustrating the normal position 'of a thread "on 195 thethreaducarrienand'in'the guide tube. I I

i'Fi'gure" is" a fragmentary side elevation of a thread carrien withfthe guidejtube in section, showing I one of: my improved devices in position sure 4 is an enlarged, detailjfront elevation of one or; the "improved plugs.- j

' [Figu e- 411s 'a v1ew' similar to Figure 4:, "show:-

i "a s li'ghtly'rnodified form thereof.

igures isf a side elevation of a further form 25 "gj t o' the drawing in 5 detail, wherein "similar; reference characters designate correspondingfpartsthroughout the several views, the "letter Mfgenerally indicates'a'iragment of a sec- 650 of aipliig] {which "can be utilized;

" Reierrl t a full fas'hio'ned stocking knitting machine This machine M'is of the usual or any de'siredst dam-construction, and only a sumcientportion of the machine has been shown to lllust'rat he'disebf myimproved appliance.

if -ustrated,' themachine embodies the, bed and frame 2-,"m"-rro'nt (if-Which traverses a plurality of thread carriers--55"Thesecarriers 5 lay tfie-threadupon the sinkers 3 and'dividers 4 along needles 6." Theknock-over bits 1 are shown E Fji urelbelow'the' dividers and sinkers. Each thradcarrier' 5 includes a guide tube 8 for the "threads- 9.1) 1 I I I Th'e inner surface or bore o f the guide tube 8 is highly polished so'a's to prevent injury to 'the thread'and to facilitate easy travel of the thread through the "tubeli As 'set' forth'a'bov; When a thread breaks in one 7 {section of the stocking knitting machine, the ma- 1 chine 'is allowed to run'until all'of the stockings '50 'are knitted on the machine, which results in the feeding of the thread to the section in which'the broken"thread'occurs; resulting in'great waste of material.

' 'In" accordance with my "invention, I provide E novel meansfor stepping the' feeding of the thread at the-thread carriers '5, so that the'thread to any I particular section can be stopped without stopping the entire knitting machine. I

In the present instance, I employ an elongated m la mas .ih three nst n Q0 movementand detachment fromthe tube;

. solid plug III, which is so shaped as to be snugly received Within a guide tube 8 against the thread 9, so as to wedge the thread therein against further movement. As shown in Figure 4, the lower end of the plug I can be slightly tapered so as to facilitate the insertion of the plug or pin with- I in the guide tube 8, and the upper end of the plug can be provided with a head I l to limit the inser-' tion of the plug in a tube and to facilitate the withdrawing of the plug from a tube after the plug has served its purpose.

As shown in Figure 4A, the head I I and apart the reference character l3. This plug is' illustrated in Figure 5 of the drawing. The upperend of the tapered plug, shown in Figure 5, is of a greater diameter than the interior diameter of the tube, and consequently the plug gradually wedges itself in place in the tube when the plug is inserted in said tube.

In order to prevent injury to the thread and to the highly polished inner surface of the tube 8, the plugs are preferably made from resilient live rubber. Obviously, when the plugs are formed from resilient rubber, the same will give when forced into a guide tube and thus will not scratch the tube or hurt the thread.

The construction of the plugs is such that the same can be cheaply made, and the same can be readily and easily inserted in the guide tubes or removed therefrom when the occasion demands.

Obviously, the invention isopen to certain modifications and changes, and the invention primarily resides in a member formed from elastic cushioning material, such as rubber, which is entirely independent of the thread-carrier and manually movable into and out of its operative engagement on the carrier, whereby no change is necessary in the carrier itself, and so that no obstructions or projecting portions will be formed on the carrier. Particular stress is laidon the fact that the member is of elastic cushioning material, in that the member will frictionally engage the carrier and thread for firmly holding the thread against movement on the carrier. This is important, as where a fine silk thread is held by metallic means rupture of the thread strands is liable to occur.

From the foregoing description, it can be se'en that I have provided an exceptionally simple and effective means for saving thread when a thread breaks in a section of a stocking knitting machine.

Changes in details may be made without-departing from the spirit or the scope of my invenvented.

3. In a full-fashioned stocking knitting ma chine, the combination with a thread carrier having a guide tube at its lower end through which the. thread .travels, of a device for wedging the thread in the guide tube against movement during the normal operation of the machine, including an elongated cylindrical body tapering toward its lower end, said body having one face thereof flattened.

4. In a full-fashioned stocking knitting machinethe combination with a thread carrier having a'guide tube at its lower end through which the thread travels, of a device for wedging the thread in the guide tube against movement during the normal operation of the machine, including an" elongated cylindrical body tapering to- ;ward its lower end, said body being formed from resilient rubber.

5. A device for stopping the feeding of thread through the guide tube of a thread carrier of a full-fashioned stocking knitting machine, comprising an elongated body manually insertible in the tube having its upper end of a greater diameter than the interior diameter of the tube with which it is to be associated.

6. A device for stopping the feeding of thread through a thread carrier of a full-fashioned stocking knitting machine, comprising an elongated body having its upper end of a greater diameter than the interior diameter of the tube with which it is to be associated, said body being formed from cushioning material.

'7. A device for stopping the feeding of thread through a thread carrier of a full-fashioned;

,its upper end toward its lower end, said body being'formed from resilient rubber and having its upper end of a greater diameter than the tube of the thread carrier with which it is to be associated.

9. In afull-fashioned hose knittingmachine, the combination with a thread-carrier having a guide through which the thread travels, of an elastic member formed from cushioning material manually movable into and out of frictional gripping contact with the carrier and thread for holding the thread against movement during normal operation of the machine, and when said member is in its frictional contact with the carrier and thread.

10. A device for stopping the feeding of thread through the guide tube of a thread-carrier of a full-fashioned stocking knitting machine comprising, a member formed from elastic cushioning material adapted to frictionally engage the carrier and thread to stop the feeding of the thread through the carrier.

CHARLES STRZALKOWSKI.

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