US1129262A - Circular-knitting machine. - Google Patents

Description

F. WILGO MB. GIRCULAE'KNITTING MACHINE. APPLICATION FILED APR, 20, 1914.

Patented Feb. 23, 1915 3 SHEETSSHEET l.

GIRGULQR KNITTING MACHINE.

APPLICATION FILED APR. 20, '1914.

l St

F. WILGQMB. CIRCULAR KNITTENG MACHINE, APPLICATION FILED 5 33.20, 1914.

Patented Feb. 28, 1915.

spring for each of the yarn fingers.

FRANK '"WILCOMB, OF PAEVTUCKET. ESLJZND, AS33181? FACTURING COMPANY, OF CENTRAL FALL-S RHGDE- ISLA'HVD, CUREDRATIGN OE RHQDE ISLAND.

CIRCULAR-KNZTTING MACHINE.

To all re/ 10m. it may concern:

Be itknown that I, FRANK VVILCOMB, citizen of the United States, residing at Pawtucltct, Rhode Island, have invented certain new and useful Improvements in Circular- Knitting Machines, of which the following is a specification.

My invention comprises an organization for operating the yarn feed fingers of a circular stocking knitting machine and it consists in the features and combination and :urangementof parts hereinafter described and particnlarly pointed out in the claims.

In the drawi igs Figure 1 is a front view of a knitting head with my improvement attached. Fig. 2 is a plan view. of the yarn finger lifting levers. and associated parts. the latch ring together with the yarn fingers carried thereby being omitted. Fig. 3 is a view looking from the right'of Fig. 1 with the knitting head omitted. Figs. -l and show in plan and in side elevation a guide box for lifting pins. 6 is a detail view of the lifting pin for the splicing yarn finger. Figs. T to 10 are details.

In the drawings 1 is the knitting head. This may be of various types, spring needle r latch needle but for convenience I show the general form known as the Banner, be-i ing disclosed in Letters Patent of the United States granted to Hemphill No. 93333-3, dated September 7, 1909.

2 is the latch ring which is movable in relation to the knitting head in the ordinary manner, being pivotally mounted oil' to one side so that it may be swung upwardly and backwardlv to permit access to the needles for transferring or other purposes well understood by lznitters. This latch ring carries pivotally mounted thereon at 3 a series of yarn fingers, one of these i being shown in Fig. 1 in its elevated or out of work position while another finger 5 is shown in dotted lines in its lowered position to deliver its yarn to the needles-this finger being for the splicing yarn for making the high splice and double sole. Each of the' yarn fingers is under pressure of a lever 6. these levers being pivoted at 6 to an extension of the latch ring and acted on. by a spring 7 suitably mounted in the latch ring there being one of these levers 6 with its Each yarnfinger is swung upwardly to its inoperative or out of work position by a lever .20. Figs. 1; 2 and Specification of Letters Patent. Patent-9d i733} 23 1915 Application filed April 20. 191-1. Serial No. 833,268.

8 one for each varn and these levers are pivotally mounted at 9 to a standard 10 suitably mounted on the fixed base 11 of the knitting head. This standard, as in common practice, serves as a support for the latch ring, said ring having an adjustable screw stop 12 to bear on the top of the standard 13. These levers are raised by pins ll. 14 guided vertically in a box or matrix fixed to the standard 10. Fig. shows in plan the standard 16 with the levers 8 and it will be seen that there are six of these and consequently in the present example of my invention there are six yarn fingers.

The matrix or box 15 for guiding the lifting 79 pins it may heof various forms and the pins also may be of various shapes, but in. the particular construction shown the guide box is made up of separate pieces or sections 15', fitting against each other at their lower 7 sections or leaves are also formed'with gig guide ways 16 for the lifting pins and while these pins may be of various shapes, as above indicated, in the particular construction shown they are square in cross section and the guide ways 1G are formed to corre- 35 spend. The separate sections of the matrix or guide box are held "together bypins 17, Fig. l shown in dotted lines.

The lifting pins'are arranged in. echelon and the pin l-l which raises the splicinggo yarn guide through the lever 8 at the rear is thicker tl 'in any'of the other pins and at its lower end it has a notch- 18 in its side face which receives the end of an arm 19,

hereinafter "referred to for raisin and lowering thefpin. The pin is also raised by a pattern controller lever :20 and there a. lever like. this one for each o the other lifting pins, these other levers being marked 20 extend substantially horizontally to the front of the machine and arepi'otallv mounted on a rod 21 held by a post fixed to the base-plate of the machine. These-levers-are operated by wires one of which is shown at23 in Fig. 3. These wires extend down at the front of the machine outside the frame and at their lower ends these wires are connected to levers like thepattern levers f of the Hemphill patent above men- These levers 2 and 10o v fingers will be in or out of work. -While the leg, heel and toe are being imit the lever 20 is ,operated by the described connections 1 leading to the patterndrum to hold the pin 1-1? l p-and. thus the-splicing yarn finger 5' will he held lip-out of work. When the high ,sp'lice or double soleis to be knit, however, the lever is operated to allow the pin 14* tobe lowered and the spring 7 come E g-spending to thesplicing yarnfinger oper-.

. siting-through the proper lever 6 the splic ing yarn finger will .be lowered. into work.

This splicing "finger when lowered by the flowering er its pin 14* is, broughtv within 0 range' of operating mechanism which will f raise andlowerthe'splicing yarn finger as 'i :in ordinary practice. This operating mechanism consistent the arm 19, above mentiioned, which is connected'adjustably to a 1 5- vertically movable slide 2% which is guided :inthe standard 10,'being substantially in closed within. this standard as shown in dotted lines in Fig. 1.. This slide is guided by the walls of the'sta'ndard and by a gib sofheld ,betweenthe walls-of the standard by screws 26 4 The, slideiis recessed or of channel form as shown in 'dotted lines-at 27, Fig. 2, and

this portion receives the rear end of the arm as 19 whichis pivoted between the walls of this channeled part on apin 28. The rear end of the arm 19 has projections 29 borne'upon ,byfladjnstingscrews 30 held by the slide and g ,2 thus'the arm 19 can be tipped up or'down, 'igo' and thus throughits engagement with the notch 18 ofithe lifting pinl the splicing yarn finger can be adjusted accurately to its work. Thejslide 24: is operated vertically by: a cam 31 connected to the clutch block b,

' which block is similarly marked in the Hernphill patent above mentioned, the said cani bearing on a roller 3-2journaled on a pin connected with the lower end of the slide. This cam movesthc slide upwardly. 5cv while its downward movement is due to gravity assisted by the spring 7 belonging to the-splicing yarn finger and a spring 34 within the standz' rd which at its lower endbears on ashoulder of the side 24 and at its upper end bears on api'n fixed in the standard; The clutch block 5 is operated by a lever bin changing from round to recipro- 'cating knitting or the reverse; the gear 6 imparting'moveinent for round knitting to ated from a segmental gearj'ifljthese being substantially the samegas 5.1 3

' ting the leg and that the cam 81 is in its In Fig. 1 the parts are in the position for splicing,- the clutch block 2; being shifted to the right so that the drive'takes place.-

When the leg or the heel and toe is being knit the lever 20 lifts the pin 14: and this in turn lifts the splicing yarn finger by The slide 24 is limmeans of the lever 8 corresponding thereto and the lifting of the pin 14 also raises the arm 19 together with the slide 24 and thus raises the roller out of range of the cam 31, assuming that the machine is knitright hand position as shown. It will be understood that when'the. heel and toe is being knit the clutch block 5 would be shifted leftward and the cam 31 would thus be out .of the vertical plane-of the roller 32, but notwithstanding this the lever-20 would maintain the slide 10 ;and the splicing yarn finger in its elevated position to hold this yarn finger 5 out of work and thus the roller 32 would remain in its elevated position and the rightward movement of the cam 31 would not be interfered with.

As shown in Figs. 1 and 4: the'front section of the matrix or box 15 is extended downward and is provided with vertical slots in which the rear ends of the levers 20, :20 are guided and sustained against lateral displacement. It will be observed that theslide 2% provides a simple and direct form of connectionbetween the operating cam and the lifter of the splicing yarn-finger This slide while inclosed in the post is readily accessible from the open side of the thisslide carries the arm 19 this can be readily adjusted to alter the throw of the yarn splicing finger 5 by adjusting the screws abovementioned. By the use of the vertically moving li'tting pins operating-1n con- "nection with the lifting arms or levers 8, the

necessary amount of movement may be secured in lifting and lowering the yarn feed .post or standard 10 indicated at .22, and as fin ers and at the same time little room is needed and thus the mechanism is adapted vto'go onto a machine having a low needle cylinder, for lifting pins having a short stroke may be employed because themovementor these'pins ismultiplied'by thelevers" 8; The standard or post 10 carries the slideiQ hthe guide box or, matrix 15 with the ligtt 'erfpins, andthelifting -a'r1ns or levers 8' 1 and all these parts can be removed from the machine and replaced as one unit by removmg and replacing the post or standard. The standard has a foot portion shown in Fig. 3, held-by screws- 35 to the plate ll of the machine frame. it is desirable sometimes to raise the thread lingers higher or lower with reference to the top of the needles and it has been customary on the type of machine known as the Banner, to bend the levers operated by-the pattern drum to get this result. I have provided adjustable connections between the [pattern drum levers and the thread levers whereby the operator or ad juster may lengthen or shorten the links to give the thread carriers more or less movement. I have shown two forms of adjustment, either one ofwhich accomplishes the result aimed at. J

The form shown in Fig. 8 is composed of -alink 23, both ends having hooks 23 to engage pins in the levers and in the pattern drum levers 20" which are operated by the pattern drum, a portion of which is shown at 23". The link in this case is made in two parts, one part being threaded into the other part at 23* and when it is desired to vary the length of this link it is only necessary to unhook one end of the link and give it'a turn and when it is hooked into the levers no check nuts are required to hold it in its proper adjustment, the hooked end of the links fitting in the forked ends of the levers as at 20".

In the form shown in Figs. 9 and 10 the link is made with a two part coupling 36 and the two link ends are rigidly fixed to the two part coupling. One'part of the coupling is attached to one link end and the other part 88 to the other link end by striking in the metal at 39. One link end 4-0 projects through its coupling into the other coupling member and can move freely in the other half of he coupling. The two halves of the coupling are ad ustably connected by v a screw ll passing freely through one and threaded with the other, and a am screw is used in the same threaded hole with the adji 4 To get any desired length of link it is only necessary to turn the adjusting screw ll as desired, and it may be locked by tl e jam screw \Vhen so connectcd the 1 machine ma y be taken apart without changing the adjustment and there is no liability of displacement as in the form first desril'ied. When it is desired to remove the l swithout taking the machine apart it is only necessary to remove entirely the adjusting screw and thereby separating the two halves of the coupling and links and when the two halves are put together again they do not require readjustment as the jam screw determines the positioning of the halves of the coupling object a at is an adjustablelinh connection as.

Lisefide the operating ends ofthe two sets of levers,

or to provide an adjustment between the yarn finger and itsoperating connection.

lclaun:

In combination in a circular knitting pin and means for guiding the lifting pin,

substantially as described.

2. ln combination in a circular knitting machine, a plurality of yarn feed fingers, including a splicing yarn finger, a cam and cam shaft, a vertically movable slide operated bythe said cam directly, means for guiding the slide, an arm carried by the slide extending substantially horizontally, and lifting means operated by said arm to lift and lower the splicing yarn guide, said arm being adjustable vertically in relation to the yarn finger and slide, substantially as described.

3. In combination in a circular knitting machine, a plurality of yarn feed fingers, including a splicing yarn finger, a cam and cam shaft, a vertically movable slide operated by the said cam directly, means for guiding the slide, an arm carried by the slide extending substantially horizontally, and lifting means operated by said arm to lift and lower the splicing yarn guide, said arm being pivotallymounted on the slide and adjusting means for holding the arm in dif ferent angular positions about its pivot, substantial y as described.

l. ln combination in av circular knitting machine, a plurality of yarn feed fingers, including a splicing yarn finger, a vertically moving slide, a cam shaft and cam operatsaid slide directly,'means for guiding slide, a lifting pin vertically movable, a connecting the slide with said pin, and a lever for lifting the pin together with the arm and slide, said pin lifting and lowering the splicing yarn finger and the slide when it is raised and lowered by the lever, substantially as described.

5, In combination in a circular knitting machine, a plurality of yarn fingers, a series of lif ing pins movable vertically, means for guiding said lifting pins, levers inter- ;osed between the lifting pins and the, yarn feed fingers, a post supporting the pivoted levers and the guidemeans for the lifting pins, and levers for operating the lifting bins, said levers extending and operating in planes substantially at right angles to the vertical planes in which the yarn feed i more, substantially asdescribed.

. in combination in'a circular knitting ma- -.'chine a 'pluralit 'ofarn feed in ers a the 1ifting'pi-ns s'iabsF-tanti-aiiy-est luraiity. pf-"lifu ngpiiis for saidfingers, dese ztibegl i 4 r g evers between said. pins and yarn feed fin- In testimon whereoffl aflix mysig-n'atiim .gers, a box for guiding said lifting pins and. in presence 0 two witnesses. e 5 levers consisting of a series 9f sections with FRANK WILCOMB.

guides formed therein for the lifting pins Witnesses:

andseparated at their ,upper ends-tov form I H. J. GREEB,"

guide spaces for thelevers and levers for JOHN-T. Begum),

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