US2574041A - Yarn carrier for knitting machines - Google Patents

Description

Nov. 6, 1951 J. s. KARL YARN CARRIER FOR KNITTING MACHINES Filed July 7, 1949 INVENTOR. M065; 5. KARL ,4 roe/v5) Patented Nov. 6, 1951 UNITED STATES;

FFICE.

YARN-CARRIER FOR KNITTINGWEAGHINES Josef Sylvester Karl, Athens, ,Ga;

Application July 7, 1949, Serial No; 103346.

I (01. sen- 126) Claims.

1. My invention relates particularly to carriers which run-back and-forth to deliver yarn-or thread to the knitting mechanism asin the manufacture of full-fashioned hosiery. Such devices usually have one or more introductory or receiving guides 1 which receive the yarn from tl'ie conditioning chamber and a guide tube which delivers 1 the yarn to the sinkers and dividers. Theseguides are subjected to wear bythe yarn whichfiequently results in cutting and breaking the yarn and a-consequent shut down of the machine fer-repair or replacement-of the damaged- .quateintroductory guides without disturbing the connection and adjustment of the carrier. Thesecarriersrshouldbeso constructed as to facilitate replacement-and retiiread-ing of the yarn and present a minimum frictionalresistance to the traveliof the-yarn.

I have-.-accordingly providedsuch introductory guides which are readily and quickly attachable and removable without disturbing. the adjustment of the carriers.

Fig: 1 is a front view showing. one form of .attachment of my invention applied to a conventional carrier. and rod."

Fig. 2.is an edge view of the same, the rodbeing shown in cross-section.

3l-is an enlarged cross-sectional view taken on the plane-of the line 3-3 .of Fig. 1. i

Fig. ids-an. enlarged cross-sectional viewtakeni ontheiplaneipf the line 4--4 of Fig; 1.

Fig. 5 is an exploded front view showing a modified form of attachment. 7

Fig. 6 is an enlarged cross-sectional View taken on the plane of the line 6-6 of Fig. 5.

Fig. 7 is an enlarged cross-sectional view taken on the plane of the line l! of Fig. 5.

Fig. 8 is a perspective view of another modified form of attachment.

Fig. 9 is an enlarged cross-sectional view taken on the plane of the line 9-9 of Fig. 8.

Fig. 10 is a perspective view of a fragment of a detachable bracket showing a simplified form of yarn guide at its upper end.

The carrier assembly consists of a holder plate I0 and a depending arm II. The holder plate is secured to the carrier rod l2 by screws l3, l3 and has slots li; hi-toallow for the screws [5, 15

which are seated in the upper endof the arm- I l.

A -s'trap i6 serves as a clamp by which the armisadjustably secured-to the-holder plate.

In Figs: I and 2 I have shown introductory guides- I1, I8 and !9 in the form of verticallyspaced eyelets located in the general positions ofthe' g uides commonly-providedin such carriers. These guides are carried by a bracket which is-detachabIyconnectedto'the holder plate of the carrier assembly. This bracket-has ac-rosspiece 2 Lw-ith a'hook 22 at one end engaging one edge of the plate 1 Hand a resilient latch member ZS 'at -theother-end adapted to be snapped over the opposite edgeof the holder plate; 23' has a finger piece by-which'itmay beengaged for detachment of the-bracket withall of the guides ll, lt and l9i- The vertical portion of the bracket may be-bent to conform with the angular bend in the carrier assembly which ex-- istsin many such devices. Thecross-pieoell of" the bracketmay beadj d' and down on the holder plate-above the clamp It;

The ey'eletg'uides may be formed'of any suitable materiarwhich is hard, smooth and noncorrosive, such as 'glass porcelain, carboloy or stainless steel and each may be removable?- For instance, an-eyelet may be detachably held to the bracket by a stra'p 25 which encircles the eyelet andslidingly embraces-the edgesof the vertical portion of'the bracket as'shown in Fig. as to reduce the friction, distribute the wear of the :yarn and; prolong the life of the guides.

The outlet or: delivery tube 26 is supported at the lower endtof arm. andtmay be detachably Secured in place in' any desired manner.

In the form shown in Fig. 5, the holder plate In is extended upwardly beyond theholes l3' through which the screws l3 (of Fig. 1) pass to connect to the carrier rod. The bracket 20' has spaced guides ll, [8, I9 and [9". In this case each guide is in the form of an eyelet held rotatingly but securely in place by a pin 21 which passes through ears 28 bent up from the edges of the bracket 20' and across the peripheral groove in the eyelet. The bracket may be extended down the arm H to support a guide l9 at a point above the discharge tube and the bracket may have cross pieces 2| and 29 similar to cross-piece 2| for snap-on engagement with plate It and arm II, respectively.

Figs. 8 and 9 show a supporting bracket 20". V

with three spaced guides l1, l8" and I9 and a pair of cars 19* for the mounting of a fourth This latch The: eyelets: may also be freely rotatable so guide (not shown). Each of these guides consists of a hardened roller or tube 30 rotatably supported in or between ears 3| at the edges of the bracket 20". Such a tube 30 is preferably supported on a pin or pins 32. In this case the yarn is guided beneath the successive rollers to the discharge or delivery tube such as 26 in Figs. 1 and 2. A solid hardened pin may be used in place of a tube.

Instead of the eyelet guides of Figs. 1 to '7 or the roller guides of Figs. 8 and 9 the detachable bracket 35 may have yarn guides formed by bending up lugs such as shown at 36 at the upper end of the bracket in Fig. 10 and providing a smooth edged hole 31 as the guide-way for the yarn. In case the guide-way becomes worn it is a simple matter to detach the bracket and replace it with one in which the guides are all in good order.

The top guide where there is the greatest lateral swing of the yarn as the carrier moves back i and forth may be formed as shown in Figs. 1 to 7 or in Fig. 10. Some of the guides on a given bracket may be of one form and the others of another form. In any case all of the guideways, other than the discharge or delivery guide 26, will be removable and replaceable with the bracket.

It should be understood that the bracket will be constructed so as to locate the guides at the proper positions depending upon the positions in which the carrier must be used.

If anything goes wrong with one of the introductory guides, it is only necessary to detach the bracket and replace it with a perfect bracket which requires only a few seconds and does not require any readjustment of the carrier assembly. The troublesome bracket with its guides may then be repaired or discarded. These features are especially important when it is considered that there is very little room available in which to manipulate the parts. The guides being rotatable, very short and spaced apart naturally provide a minimum friction against the yarn. Such a construction is especially important when nylon yarn is used in such a machine as nylon yarn is particularly destructive of guides.

I claim:

1. In a knitting machine, a carrier rod, a carrier assembly having a holder and an adjustable carrier arm, means including clamp screws for detachably securing said holder to the carrier rod, means for adjustably securing said arm to said holder, a bracket having introductory yarn guides spaced apart vertically along said bracket, means including a hook at one edge of said bracket and a manually operable latch at the opposite edge of said bracket for detachably connecting said bracket to said carrier assembly independently of the means for securing said holder to said rod and without disturbing the adjustment of said arm and a yarn discharge tube at the lower end of said arm.

2. A carrier assembly for a knitting machine comprising a bracket having means including a hook for engaging one edge of a carrier assembly and a manually operable latch for engaging the opposite edge of the assembly for quickly and readily attaching it to such a carrier assembly and a plurality of short introductory yarn guides spaced vertically along the bracket and removable with the bracket without disturbing said assembly.

3. A carrier assembly comprising a holder plate for attachment at its upper end with a carrier rod, an arm having its upper end adjustably secured to the lower part of said plate and having a guide tube at its lower end, a bracket detachably secured to said plate, said bracket including a hook at one edge thereof and a manually operable latch at the other edge, a yarn guide'carried by said bracket adjacent the upper end thereof, a yarn guide carried by said bracket at a lower part and a third yarn guide carried by said bracket intermediate its ends.

4. A bracket for a carrier assembly having a snap-on means for attaching it to a carrier assembly, said means including a catch for engaging the carrier assembly and a latch for engaging an opposite part of said carrier assembly and having a plurality of guides carried by and removable with said bracket for guiding yarn over the assembly.

5. As an article of manufacture, a yarn carrier assembly for a knitting machine comprising a plate for attachment to a carrier rod, said plate having two spaced slots in its lower end, a carrier arm adjustably secured to said plate and a removable bracket having a cross bar and a longitudinal member, a yarn guide mounted on the upper and lower ends of said bracket, said cross bar having a hook on one end and a manually operable catch on the other end, said hook and catch member securing said bracket and its yarn guides to said assembly without disturbing the adjustment of said yarn carrier on said plate.

JOSEF SYLVESTER KARL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,887,928 Gastrich Nov. 15, 1932 2,092,619 Gastrich Sept. '7, 1937 2,145,813 Kannegieter Jan. 31, 1939 2,403,310 Staub July 2, 1946 2,437,539 King Mar. 9, 1948

Images