US1777681A

US1777681A - Spool support for knitting machines

Info

Publication number: US1777681A
Application number: US415660A
Authority: US
Inventors: Stanley R Shelmire
Original assignee: STANDARDTRUMP BROS MACHINE COM
Current assignee: STANDARDTRUMP BROS MACHINE Co; STANDARDTRUMP BROS MACHINE COM
Priority date: 1929-12-21
Filing date: 1929-12-21
Publication date: 1930-10-07
Anticipated expiration: 1947-10-07

Description

O 1930. s. R. SHELMIRE SPOOL SUPPORT FOR KNITTING MACHINES Filed Dec. 21, 1929 2 sheets -sheet l i if relatively ,direct path to the yarn fingers PatentedO ctEZ i930 I i f u NITED-STAT'ES STANLEY a. snnmviinnor WIL ING ON, DELA ARE, Assmnon To gunman TRUMP Bites. MACHINE COMPANY, or WILMINGTON, nnnnwnnn, A coarone'rrou or DELAWARE sroon surronci'ron KNITrriNG Mrioninns Application filed December 21, 1929. Serial No. 4 5,660..

fThisinve ntion relatesto alknittingmechanism and has particularreference to a. rack for supporting spools ofyarntobe used by the machine. The invention is advantageously applied to the mounting of spools of yarn from which the'wrapping fingers "of ajknittingmechanism are fed.

In using a number of wrapping fingers in a knitting mechanism, it is necessary to provlde indivldual yarns therefor. Accordlngly,' any elaborate design requiresthe provision of a larger number ofspools to carry thevariousyarns. The. racks heretofore K used for this purpose are provided with pine. pointing inwardly toward the knitting mech anism so as to obtain a rather-direct feed of the yarns from the spools to thefingers. While this latter objectis accomplished, the X arrangement of the. pins makes. it very diffcult to replace the spools and thread the p v the drawlngs, forthesake of clearness,only

yarns through the guides'to the fingersi It is the primary object of the present invention to provide a rack on which the spools may be mounted with a mimmuminconvenience and furthermore from which the yarns may be readily threaded through" suitable 'guides to the fingers. More specific objects offthe invention relate to the provision of guiding means whereby the yarns take a andthrough or about which the yarnsmay be very readily threaded. Another advan-. tage of the invention resides in the increased visibility of the spools whereby an operator can readily detect a spool which is nearly exhausted and must be replaced.

The specific objects of he invention and their accomplishment willbe apparent from i i as the following description read in connection i with the accompanying drawings in which Fig.1 is a front elevation of a knitting mechanism w1th one of the improved spool racks mounted thereon, the same. being pars f ti fly in section to illustrate :the paths of the yarns Fig. 2 is a plan viewdof the same partly.

broken away;

Figvdis a side view looking in the dire tion of the arrow dinFig. 1; u t

Fig. 4 is a transverse section of thepin supporting plate of the rack; and

PATENT fOF FI -C E'J Fig, 5 is a sectional detail View showin the mountingof one ofthe removable gui 7 ,usualfashi0n by means not a lug-carrying cylinder 5. These fingers arearranged on a: carrier which isdesigned to have a shogging movement to bring each finger into position. to cooperatewith variousv needles.

Securedto a portion ofthe frame of knitting machine is a bracket havingftwo sidewardly extending

arms

6 and 6, on each ofwhieh may befmounted a spool rack. In

one of these racksis illustrated. Each rack comprises ahorizontal bar 7 which is secured to one of the-

arms

6 or 6 by means of bolts 8%passing upwardly through; an elongated slot. 10 therein. The provision of this elongated slot makes-it possible to move the rack forwardly or rearwardly of the knitting machine so that itwillbe out of the way of an operator as much as possible. For example, ifno yarn. fingers are being used, the rack is moved to its extreme rear:- wardposition'. If only afew yarn fingers areused, the spools'are mounted onthe for- Ward pins of the rack, whiehmr y be moved slightly forwardly to bring the spools that. are being used opposite the fingers which. they feed. On the other hand,1if a large number of spools are beinguse'd, therack may be moved. forwardly so asto bring the center of the aggregate number of spools carried thereby opposite the knitting [instrumentalitiesi whereby the various yarns are arranged so as to have paths-of minimum length. i t y Mounted on the bar 7 are suitable support.-

ing brackets which support aplate 12arid to receive spools of yarn so that they extend upwardly and outwardly relatively to the knitting instrumentalities. These pins are split in the usual fashion so to form spring prongs relcasably engaging the yarn spools 18. The pins 16 are preferably arranged in rearwardly extending parallel rows, the pins in adjacent rows being staggered, as will be clear from Fig. 3.

The upright side members 14 releasably carry rearwardly extending rods 20, there being preferably one rod for each of the rows of pins, the rod corresponding to each row being outwardly of and over its row. Extending between the side members above the rods 20 is a spring 22 having the same number of convolutions as there are pins 16. Inwardly of this spring are

rods

24, 26 and 28 arranged as illustrated and inwardly of these rods is a second spring 30 similar to spring 22. A number of thread guiding holes are provided in a circular disc 32 located directly above the wrapping fingers.

The rods 20 may be releasably held in the side members 14 in any suitable manner, for example, as illustrated in Fig 5, in which pins 34, pressed inwardly by springs 36, are provided with sockets arranged to embrace the ends of the rods 20, the other ends of the rods being received in sockets in the opposite side member 14. Inward movement of the pins 34 is limited by transverse pins 38.

It will. be obvious from the above that the replacement of spools of yarn upon the pins 16 may be very readily effected by removal of the rods 20 so as to open up the entire space outwardly and above the pins to an operator. In replacing the bobbins there is no interference by the operating parts of a machine. After the spools have been located on the pins, the rods 20 may be replaced individually, for example, the uppermost rod may be put in place and the yarn from each spool in the upper row drawn thereunder, then between convolutions of the spring 22, then alternately under and oyer the

rods

24, 26 and 28 between convolutions of spring 30 and through a guide eye in the disc 32 to the proper wrapping finger. After all of the yarns in the top row have thus been threaded, the next lower rod may be put into place and the yarns from the second row of spools similarly threaded.

The provision of

springs

22 and 30 permits a very simple threading of the yarns which are kept separate not only through the springs but also in their passage about the

rods

24, 26 and 28. which are so arranged as to impart frictional tension upon the yarns suflicient to prevent their becoming too loose.

If any one of the spools becomes exhausted before the others in its row, it is only necessary to lift the rod 20 thereabove and replace it by a loaded spool. In this operation 1 there is relatively little displacement of the other yarns from spools in the same row. The replacement of the rod 20 brings all of these yarns into their proper positions.

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

1. In combination with a knitting mechanism having knitting instrumentalities, a rack including spool supporting pins at one side of the knitting instrumentalities and extending outwardly and upwardly relatively thereto and means for guiding yarns from the spools on said pins upwardly and then laterally and downwardly to the knitting instrumentalities.

2. In combination with a knitting mechanism having knitting instrumentalities, a rack including spool supporting pins at one side of the' knitting instrumentalities and extending outwardly and upwardly relatively thereto, and means for guiding yarns from the spools including at least one rod extending transversely over the pins and about which the yarns may be extended.

3. In combination with a knitting mechanism having knitting instrumentalities, a rack including spool supporting pins at one side of the knitting instrumentalities and extending outwardly and upwardly relative- 1y thereto, and means for guiding yarns from the spools including atleast one removable rod extending transversely over the pins and about which the yarns may be extended.

4. In combination with a knitting mechanism having knitting instrumentalities, a rack including spool supporting pins at one side of the knitting instrumentalities and extending outwardly and upwardly relatively thereto and means for guiding yarns from the spools including a plurality of rods extending transve'rsely over the pins and about which the yarns may be extended,

5. In combination with a knitting mechanism having knitting instrumentalities, rack including spool supporting pins at one side of the knitting instrumentalities and extending outwardly and upwardly relatively thereto and means for guiding yarns from the spools including a plurality of removable rods extending transversely over the pins and about which the yarns may be extended.

6. In combination with a knitting mechanism having knitting instrumentalities, a rack including spool supporting pins at one side of the knitting instrumentalities and extending outwardly and upwardly relatively thereto, said rack being adjustable in a direction from front to rear of the knitting instrumentalities, and means for guiding yarns from the spools on said pins upwardly and then laterally and downwardly to the knitting instrumentalities. V

'Z. In combination with a knitting mechanism having knitting instrumentalities, a rack including spool supporting pins at one sideof the knitting instrumentalities and extending outwardly and upwardly relatively thereto and means for guiding yarns from the spools including a spring between the convolutions of which theyarns may pass.

8. In combination with a knitting mechanism having knitting instrumentalities, a

rack including spool supporting pins at one side of the knitting instrumentalities and eX- tending outwardly and upwardly relatively thereto and means -for guiding'yarns from Y the spools including at least one rod extending transversely over the pins and a spring above the rod whereby a yarn may pass about the rod and thence between convolutions of the spring.

9. In combination with a knitting mecha nism having knitting instrumentalities, a rack including spool supporting plns at one side of the knittlng instrumentalitles and extending outwardly and upwardly relatively thereto and means for guiding yarns from the spools including at least one rod extending transversely over the pins, a spring above the rod, and a pluralityoit rods associated with the spring, whereby a yarn may pass about the first rod, between convolutions of the spring and thence alternately under and over the rods.

10. In combination with a knitting mech-I anism having knitting inst-rumentalities, a

rack including spool supporting pins at one side of the knitting instrumentalities and extending outwardly and upwardly relatively thereto and means for guiding yarns from the spools including at least one rod extending transversely over the pins, a spring above the rod, a plurality of rods associated with the spring, and a secondspring, whereby a yarn may pass about the first rod, between convolutions of the first spring and thence alternately under and over the rods and between convolutions of the second spring.

11. In combination with aknitting mechanism having knitting instrumentalit-ies, a rack including spool supporting pins, and a helical spring between the convolutions of which may be guided yarns from the spools on their way to the knitting instrumentalities. V

12. In combination with a knitting mechanism having knitting instrumentalities, a

. rack including spool supporting pins,a rod,

and a helical spring extending along and adjacent the rod whereby yarns may be guided between the convolutions of the spring and thence in contact with the rod on their way from the spools to the knitting instrumentalities.

In testimony of which invention, I have hereunto set my hand, atWilmington, Del.,

on this 17th day of December, 1929. a

STANLEYR. SHELMIRE.