US940656A

US940656A - Take-up mechanism for knitting-machines.

Info

Publication number: US940656A
Application number: US39827507A
Authority: US
Inventors: George Lawson Ballard
Original assignee: Wildman Manufacturing Co
Current assignee: Wildman Manufacturing Co
Priority date: 1907-10-19
Filing date: 1907-10-19
Publication date: 1909-11-23
Anticipated expiration: 1926-11-23

Description

G. L. BALLARD. TAKE-UP MECHANISM FOR KNITTING MACHINES. APPLIOATION FILED OCT. 19, 1907.

Patented Nov. 23, 190.9.

2 SHEETS-SHEET 1 llllllllllmll 1720672, my of WW .%MWMV% G. L. BALLARD. TAKE-UP MECHANISM FOR KNITTING MACHINES.

APPLIGATION FILED OCT. 19, 1907.

Patented Nov. 23, 1909.

2 SHEETSSHEET 2.

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%MZ%%MWWV%M GEORGE LAWSON BALLJARI), F NORBISTOWN, PENITSYLVANIA, ASSIQNOB. 1'0 "Wfikll MAN MFG. G66, Q3. NGEEJSTGWN, PENNSEELVANEA.

TAKE-UQ1KEECHANISTMI FGR KNIT TING-ii/ZAGHENES.

LARD, a subject of the King of England, to

siding at Norristown, Pennsylvania, have invented certain new and usefui Improvements in TakeUp Mechanism for Knitting- Machines. of which the following is s specification.

It is the object of my a take up for knitting machines Which may be applied either to the form of machine requirlng a revolving take up, thst is, one revolving with the lmitting head or one which may be supported on the fixed frame, said take up having take up rolls carried by pivoted arms and being thus of a gravity take up character, the action of suioqrolis and their oivotccl arms-however, control-ling the pressure between. certain friction our faces at the drive to reguicte the rotation.

of the rolls according to the requirements due to variations in the tension of the fabric passing from the. needles.

The invention consists in the fest s end combinhtion end arrangement of: pa .1? hereinafter described and pointed out in the claims.

in the accompanying drawings, Figure 1 is a side elevation of my invention. 2 isc. piun View of the bracket at one cud of the take up roiis w. i the parts associated therewith. 8 is front view of th hangers with the rolis in piece and showing also the driving; mechanism. Fig. at is a. View of e deteii srt.

The take up rois l, 1.. are ioui-usleti in arms 3 which are fixed by set screws 4 to arod' or shaft 5 g'ourncleii in standards 5. 7, at 8. The scicl steucisrcis 6 anti. 7 may depend from the rotary knitting head and at their lower ends they'heve attached; thereto the take up rim Well imown iiithis The centerr'of he said shaft, or in other Words the pivot point of the arms, which support the take no roi s, is at. or very close to the pleas of the poi t Where the Worm. and mm wheel 15.? mesh with each other. The worm "Whee is on the shaft of one of the take uproiis end the Worm 9 is on the drive shaft 1'? and is driven therefrom through friction members 20-22 hereinafterrefer-ref: to,..sssocisteti with the l drive shaft 12.7.

flne of the arms of the pivoted frame made up by the ssici arms 3 and their cross shaft 5, is connected by s. iinlt 11 with e invention to provide $pecifieetio21 of Letters Retest, Patented Piot 2-3 jitl'fitI-Bi; implication filed octo'oer i=5, 199?. I

Serial No. seems.

lever 12, pivoted to a bracket 13 st 1 said bracket being fixed to the hanger or stones" urd 6. This lever'hcs an adjustable screw 15 bearing on the rod. 16, which passes clown through the hollow upper end of the verticsl drive shaft 17, to which power. is applied from the rotary motion; of the knittingme- N the lever 12 is subjected to a downward stress this to its spring 12* and the Weight of the roils 1. When so pressec i upon the friction ciuteh member $20 presses harder upon the lower clutch member 22, which is con- :cected to the driving worse 9, through the hollow stem portion 22' and thus the takeup rolls will be driven with greater power. The spring 12* for pressing the lever is ar-- ranged in a. boxing or bracket fixed to the standard 6 and is adjusted by a screw 23. The screw is held in its adjusted position by a. bin 24: which is pressed by a spring The Worm 9 is loose on the drive shaft. is

sprin is arranged at 26 upon which the pivoted trains or arms res to sustain the Weight thereof and, provide it resilient cushion.

When the tekeup is Working normally,

the spriug is adjusted to set the ports of the :frictifon drive under such pressure to cause the tske-up rolls to take care of the fabric it is produced normally. ii, however a. heavy Welt arrives at the take-up roils end will not go through "immediately, then the moment this occurs the arms upon which the take-up rolls are supported will tend to move down by gravity and by the nicely ad justed force of the spring acting on the lever 12, and thus will set ports oi the friction drive hunter together, thus driving the lOilS with more power to force the Welt tl'uiougii.

The downward tenoieucy of the pivoted arms carrying the tskemp toils, when a Welt arrives and Wiii set go through is dueto the fact that the fabric is lengthening c116. easing up het'vveen the take-up roiis mod the needies during the time the vault remains before the take-up rolls end hence the pivoted arms With the rolls will tend to fall, In other Words, when the take up rolls cease to perform their taking up action, due to an obstruction arriving thereat, more power is applied at once by the spring and the Weight oi? the arts, which then is allowed to act or rather become effective because the suspended relation the rolls to the fabric or to the needles has. been disturbed. It now the rolls are taking up the fabric too rapidly and placing too niuch tension therein, the rolls Will tend to creep up cm the fabric because of their pivoted. supporting arms and this will be against the pressure or the spring 12 Which Will therefore yield and sumthe friction drive members to loosen up and thus reduce the drive.

The device weighs onthe fabric and con trols the drive according as the excess tension on the fabric tends to cause the rolls to rise by creeping upon the fabric or according' as the rolls are not taking up fast enough, the latter result being -also due often to wclts. 1f the rolls tend to move down as a body due to welts or decrease in tension the sprin and Weight of the par s act to give a more pervertul driving action and it the rolls tend to move u '3 bodii due to incrciised tension the drive will be reduced.

it will be 'und -u'stcod, of course, that where Li refer herein to the tend ncy of the rolls to move up or dournl do not mean that there is any appreciable movement of the rolls vertical-ly because the friction driving surfaces of the friction drive are in contact and the el'l'ect of the action of the pa under the varying tension of the fabric is rather to increase nd decrease the press ire between the friction members to meet the require ments.

in the operation of the apparatus the rolls have a tendency to move down bodily under slackening oil the fabric, this tendency causing an increased pressure etwcen the memhers-of the drive. The spring and adjust ing screw 23 enable the operator to change the stress of pressure to which the parts are subjected and. thus the apparatus may be set to suit dillerent grades of yarns or dill crent of tension on the fabric. 01 course the stress to .vhich tl'ic rule are subjected ix due also to the fact that they here u. tendency to 'evitate.

l claimsl. in combination in at tithe-hp .1

field-63 518 urnovable support for the take-up rollers, and a. connection between the said inovable supg iort and the clutch, including a pivoted leve and a link, substantially as described.

'binat-ion in take-up for knit-- -niovable support of the t2ll-1-llp rollers, and

arranged to operate the clutch, substantially a 5 described.

In combination in a take-up "for knitting machines, take-up rollers, a. movable support therefor, Worm. earing for driving thelulm-up rollers, a drive shaft extending through the worm, clutch members on the drive shaft to connect the Worm with said shell, and a connection from the movable supportof the take-hp rolls for operating the clutch, substantially described.

3. In combination in a tal eup for knit ring machines, a pair of take-up rollers, \vorni gearing for driving the same, a vertical shaft passing through th worm, a clutch for connecting the worm. with the said shaft, and a lever extending over the shaft and comiected with the clutch for conlrolling the same, said lever being connected with the movable support oi? lhc take-up rolls, substai'itiully as described.

In combination in a take-up for knitting inau'zhines, take-up rollers, e movable su iport therefor, Worm gearing for driving the take-up rollers, a drive shaft extending through the worm, a clutch for connecting the Worm with the drive shaft, and e connection between the movable support of the take-up rollers and the said clutch, substantially es described.

8. In combination in o. take-up for knitting machines, a pair of take-up rollers, 21 support therefor under stress or tendency to move, a worm and Worm for operating the pair of rollers, a friction clutch forepthe wornne spring for applying ore to Me support and to the clutch and connections between the said support of the rollers and the spring and it lCtiQil clutch whereby variations in the tension of the fabric control, through the said take-up rolls and ir support, the pre ure between the nien'ibe of the triction cl t h, substantially .ieneliion in a l pair or trl'e up rollers, s

ee es support therefor und r stress or tendency to move, a friction clutch with means opereted thereby for operating the rollers, a spring for worm and worm Wheel, a

applying pressure to the support and mem bers of the friction clutch, and connecting means between the support and the spring and friction members, whereby variations in the tension of. the febric control, through the said take-up rolls and support, the pressure between the membersof the friction clutch, substantially as des ribed,

10. In combination with tie talrcnp roll- 'ers of e knitting machine, it support for said rollers under stress or tendency to move, means for driving; the rollers including a, friction clutch, s lever with means for pressing the members of the clutch together. means of connection between said lever and the support of the take-up rollers and. means for applying pressure to the friction clutch rollers support and the said lever, substaln tially as described.

12. In con'ibination with the take-up rollers of'ii knitting machine, means for driving the same including the intermeshing support for the rollers pivotal'ly supported with the axis of the pivot passing substantially through the intermeshing point of the worm and worm wheel, a friction clutch for driving the worm and means for coiitrolliug said clutch from the pivoted support of the tnke-up rollers, substantially as described.

In combination in a trike-up for knits tingmachines, a pair of take-up rollers, a slo. d shaft, a worm through which the shaft extends loosely, e worm wheel between the worm and telrc-up rollers, a friction clutch, one member of which is connected with the worm and the other member splined to the shaft, a movable supportfor the take-up rollers and menus controlled thereby for pressin the splined member againstt-he Worm. member, said means including the pin sliding in the upper end of the shaft and the key 18 extending through the slots in the shaft to engage the friction member, substiintially {18 described.

i i. In combination with the take up rollers of a knitting machine, it pivoted support therefor, intermeshing members for driving theseid rollers, one of said members being carried on. the pivoted suport, said sup port having the axis of its pivot passing substantially through the intern'ieshing' point of the said members, a clutch for driving the intern'ieshing members, and means for controlling the said clutch from the pivoted support of the take up rollers, substmr tially as'described.

In testimony whereof, I miix my signature in presence of two Witnesses.

GEORGE LXUVSON lALLARD.

il itnesses:

hi .xnoiu'in'r Po'r'rnn, Jimmie 1V. Fiuuous.