US1704804A - Knitting machine - Google Patents

Description

March 12, 1929. ,1. E. MOORE 1,704,804

KNITTING MACHINE Filed March 5, 1927 5 Sheets-Sheet 1 FIGJ.

INVENTOR March 12 1929.

J. E MOORE KNITTING MACHINE Filed March 1927 5 Sheets-Sheet INVI'ZNTOIZ March 12, 1929. J,E MOORE 1,704,804

KNITTING MACHINE Filed March 5, 1927 s Sheets$heet 5 IN VEN TOR March 12, 1929. J. E. MOORE KNITTINGIIMACHINE Filed March 1927 5 Sheets-Sheet 4 March 12, 1929. .1. E. MOORE KNITTING MACHINE 5 Sheets-Sheet Filed March 192 Patented Mar. 12, 1929.

UNITED STATE'SK JOHN nanasrmooan; or sonmoa'r, ENGLAND.

KNITTING MACHINE.

-Appl1cat1on fled liarch 3, 1927, Serial No. 172,385, and in Great Britain March 8, 1926.

This invention relates to the manufacture of cloth wherein the warp threads are secured to the weft threads by lock loops and has for its chief object to enable it to be 5 made more quickly with a view to obtaining increased production. It is primarily intended for manufacturing cotton' waste cloths such as are used for cleaning purposes, butvariousother kindsof cloth'can 1 be manufactured in the same manner.

According to this invention the weft is caused to traverse the warp threads in one direction, each warp thread being crotcheted -.or lock looped around the weft thread after 1 the latter has'b'een placed in osition. If a number of sets of warp threa s are arranged side b side they are traversed by a number of we t feeds which successively follow one another, the ends of the weft bein out be-' tween each. two adjacent sets to pro uce separate widths of cloth.

In order that the said invention may be clearly understood and readily carried into effect, the same is described more fully with brackets e carried by reference to the accompanying drawings,

Fig. 1 is an elevation of part of a machine for manufacturing cloth in accordance with, this invention. 1

Fig. 2 is a' Ian of'part of the machine with portions roken away.

Fig. 3 is an elevation of part of the machine with a portion broken away.

Fi 4 is a vertical section taken approxl- 'matefy on line 4-4 of Fig. 2 of part of the machine.

Fig. 5 is an elevation of a warp creel and letting-off motion; a r

Fig. 6 is an elevation. showing a construction of part of Fig. 5 and a weft cutting "appliance.

' Fig. 7 is an elevation of a cloth beam and mechanism for rotating it. Fig. 8 isa plan of part of two cam plates. Fig. 9 is a detached viewof a knitting needle element drawn to a larger scale. F Fig. 10 is a se'ction taken on line 10-10 of ig. 11 is an end elevation of the needle 0. element, and

Figs. 12 to 19 are progressive-views showing a warp thread bein crotcheted or look loo ed around a weft thread.

indicates the weft and B the warp. In

the example shown the machine is constructed to manufacture six lengths of cloth E. The rail 1) is fixed bwhere it is united with the weft threads A 'bylatch needles H, one set of needles rails k which are fixed to the stationary table F. Each needle carrier .is provided at one operation and for this purpose six separate weft supplies in the form of cops a are mounted on a rotary table'C, the weft being drawn in an axial direction from the 00 cops through guide eyes 0 Each weft thread is then taken through a lower guide eye a to a weft carrier a comprising a tube or an inverted channel shaped guide which lnclines at its forward end and is attached 66 to an arm a that is adjustably mounted on the table C. Thisweft carrier travels alon an annular space a between two rails D an to a stationary table F carried by vertical frames 7 and provided with a bearing f for a central shaft G which carries the rotary table 0, guide eyes 01 and cam plates hereinafter described.- The rail E is made in the form of a channel and carries a number of warp supporting members 6 each of which is bored at b and formed with an aperture b for the passage of a warp thread B as shown more particularly in Figs. 12 and 13. The railE is fixed to are supported from the frames ijby adjustably mounted brackets e. ach warp. thread B, comes from a bobbin 6 on a'creel bf, is taken over a ide roller 6 and between two rods 6 b. he rod b'is' stationary, and the rod 6 is moved to and fro to let off- -war'p from the bobbins as and when required during the formation of the lock loop. For this purpose the rod 6 is carried by two end frames 12 that are pivotally mounted about the rodb and moved in one direction by a ,rod 6 against the action of a spring b which moves the end frames and rod 6 in the other direction. The lower endof the rod 6 is connected to a crank-b. (Fig. 4) on a rod 6 which is free to turn in a bracket 6" that is adjustably secured to the verti- 'cal frame 7. Projecting from the rod b is a fin er 6 which is actuated by a cam b to li the rod b a number of such cams be- 1'00 ing mounted on a cam plate 6" fixed on the 1 central shaft G. Each warp thread after passing the rod 6 is threaded through the aperture 6 in the warp supporting-member being rovided for each iece of cloth. Each neele H is eccentrica ly or otherwise mounted in a needle carrier ibi slidably mounted in with a stud h which is acted upon by cam upright rods 6 which 80 surfaces h k on the underside of the table C for imparting a backward and forward movement to the-needle carrier and needle. Each cam stud is fixed on a vertical bracket 71. (Fig. 11) mounted on a sleeve 71. (Fig. 9). through which the needle carrier passes. To prevent the cam stud from turning about the axis of the needle carrier the lower end of the bracket is slotted at h (Fig. 11) to engage a guide 71, (Fig. 4) which is arranged parallel with the needle carrier. To prevent relative endwise movement of the. needle carrier and sleeve and allow the needle carrier to turn in the latter, each sleeve is slotted transversely at it" (Figs. 9 and 10) for the passage of a screw it or pin which projects through such slot. .VVhen this screw or pin is removed, the needle carrier can be drawn out of the machine. Each needle carrier is arranged to receive a partial turn in alternate directions in addition to the backward and forward movements. This is convenlently efi'ected by providing each needle carrier near its inner end with two pins h arranged at an angle to one another. These pins operate in conjunction with plane surfaces h fixed at intervals to a table 72. which is fixed on the shaft Grand rotates therewith. Fixed to thetable It above the gap which exists between each two of the sur aces h is an arm or plate'h. The pins h together with the aforesaid plane surfaces, gaps and plates causethe needles tobe turned positively in alternate directions as and when required and held ositively in the positions to which they have been turned. After each needle has completed its forward stroke and is beginning to return, it is turned over to a position in which the hook will engage a warp thread and draw it inwardly over the inner iderail the needle again turning tov cause the hook at the end to occupy its upright position onits inward stroke. The weft carrier now carries the weft past the loop of war that is suspended from the needle clear of t e end of the latch and depresses a portion of the war thread below the two guide rails leaving the weft on the top of such thread. This position is shown clearly in Fig. 12. The needle then moves outwardly V as shown in Figs. 14. and 15, the latch being turned over by the first loop as the needle slides throu h it. By. the time the needle has arrived at t e end of its outward stroke, the rear end of the weft carrier has left the needle as shown in Fig. 16-. The needle then commences its return stroke and is again turned as shown in Fig. 17 to take another loop of warp thread and drawit throu h the loop that is on the needle and whic now slips off asshown in Fig. 18, a portion of the warp thread still being retained on the hook of the needle. It will now be seen that a lock loop has been formed in the warp around the weft. As each warp thread is I drawn inwardly by the needle hook, the weft is prevented from being drawn inwardly by a series of pins d which project upwardly on the inner rail D. Afterthe weft has been deposited, it is automatically cut in suitable proximity to the edge of the cloth. For this purpose a cutter J mounted on a bracket j attached to the stationary table F may be actuated by link and lever connections j from a rod 7' that is connected at its upper end to one of the end frames b that is rocked in the manner previously described. Each time a weft carrier has trav-- ets is a rod 76 carrying a pawl k that is caused to engage its ratchet wheel by a spring M, and operating in conjunction with such pawl is a spring controlled retaining" pawl k across the top of the roller K. Passing through an e elet in a portion of the rod 70 is one end 0 a two-armed lever 10 that is pivotally mounted on the frame f. The other arm of this lever is steadied by a guide post 70 andcarries a roller is that rides over a series of cams k on a cam plate is that is rigidly fixed on the central shaft G. Each time one of these cams passes-under one of the rollers is it lifts the corresponding lever k and actuates the pawl k to advance the ratchet wheel.) When the taking up roller is made in two sections two sets of cams k are provided one set for each section the said camsbeing'so arranged that the two parts of each roller are actuated successively. The cloth passes under the taking up roller K over the rod is to a beam or cloth roller L (Figs. 1 and 7) which is 'rotatably mounted in brackets Z secured to the upright rods 0 This beam is rotated simultaneously with the taking up roller K by a pawl Z engaging a ratchet wheel Z on the beam or rotating with it and actuated by a bell crank lever Z that is maintained in contact with the lower end of the rod is by a spring I. The pawls for actuating the taking up and cloth rollers are returned to their initial positions by a spring k. If desired a friction device maybe a plied to the cloth beam L for keeping the fabric taut,

What I claim as my invention and desire to secure .by Letters Patent in the United States is :4

1. In a machine for *manufacturing'cloth of the character specified, means for guiding a circle of warp threads, means for traversmounted on a rod is which extends ing a weft thread around the circle of war threads, a circle of radially mounted latcli needles, and means for-imparting endwise reciprocating and opposite turning movements to said needles to crotchet the warp threads around the weft thread as the latter traverses the circle of warp threads.

2. In a machine for manufacturing cloth of the kind specified, means for guiding a circle of warp threads, means for traversing a weft thread around the circle of warp, threads, threads around the weft thread threads, a circle of radially mounted latch needles and. rotatableandslidable carriers for said needles, each carrier having two pins arranged at an angle to one another,

means for cizotcheting the warp? as the latter" traverses the clrcle' of -w arp threads, means and a rotary device having spaced surfaces and arms at the spaces between said surfaces, said surfaces and arms moving across opposite sides of said carriers and being adapted to contact with said pins to rotate the carriers and needles in opposite directions, and said device having means to reciprocate the needles, so that the reciprocatory and rotary movements of said needles will crotchet the warp threads around the weft thread.

4. In a machine for manufacturing cloth of' the character described, means for guiding a circle of warp threads arranged in sets for a plurality of sections of cloth,

means for traversing a weft thread around the circle of warp threads, means for crocheting the warp threads around the weft thread as the latter traverses the circle of Warp threads, means for cutting the weft thread between the sets of warp threads, and a cloth taking up motion having a plurality of sections, one for each section of cloth, operable in succession in cooperation with the second named. means.

In witness whereof I have signed this specification.

JOHN ERNEST MOORE.

Images