US1116161A - Speed-changing and stopping device for knitting-machines. - Google Patents

Description

H. SWINGLEHURSI'.

SPEED CHANGING AND STOPPING DEVICE FOR- KNITTINGI MAGHINES.

APPLICATION FILED JULY 13,1912.

1,116,161. Patented Nov.8,1914.

w INVENTOR HARRY wrrNEssEs l ewlNL HuRs BY HPS fa/LL ATToRNi-:w

g o2 g3# te n APPLICATION FILED JULY 13.1912.

Patented NOV. 3, 1914 z V uuviinrroFz VM4444 HARRY SWINGLEHURST [3'- A BY HlsgATToRNEY H. SWINGLEHURST.

SPEED CHANGING AND STOPPING DEVICE FOR KNITTING MACHINES.

APPLICATION FILED JULY 113, 1912.

Patented Nov. 3, 1914,

3 SHEBTS--SHBET 3.

WITN E SBE 5 @r-Dm@ m f INVENTOR HARRY SWINGLEHURST BY HIS ATTORNEY 'the iframe 1.

no e

'A'EIS OFFCE.

EMRK SWINul-LEHURnT, OF PHILADELPHIA, PENNSYLVANIA, ASSLGNOR TO SCOTT & W'LLIAMS, INCORPORATED, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

initier-lei.

Specification. of Letters Patent.

Patenten n uv. 3, 1914.

Application and July 1s, 1912. serial No. 709,280.

ile, it known that l, HARRY Swmemsrimts'r, a. citizen of the United States, residing in thiladelpllia, lemiavlvania, have invented certain lmproveimnts iu S eed- ("hangglngr and Stopping Devices for (nittingiliacl'lines, of which the following is a specification.

The object of my invention is to provide cflicicnt mechanism for stopping the operation of a knitting machine, and for automatically changing the speed of movement ot the machine atr a predetermined time or times. This object I attain in the nntnn'er hereinafter set forth, reference being had to the accompanying drawings, in whleh Figure 1 is a view, partly in side elevation and partly in section, of speed rhanging mechanism for knitting machines conslruct ed in accordance with my invention; Fig. 2 is an end View looking in the direction of the arrow Fig. 1; Fig. 3 is a transverse section on the line a-o, Fig. 1, looking in the direction ofthe arrow y. and Flc. 4 is a transverse section on the line omc, fig. l, looking in the direction oi? the arrow w.

In the drawing, 1. represents the supportingr framework of the machine, and L the driving sha l't which is mounted in suitable bearings `in said framework 1 and in a bracket B projecting therefrom. Mounted upon and tree to turn on thc"shatt 2 is a. sleeve Ll, and mounted upon and free to turn on the latter sleeve is another sleeve 5. 'lo the stoere #t is -eecured a pulley (i and to the sleeve 5 secured a similar pulley T, a third pulley ti being Secured directly to the shaft 2, as shown in Fig'. 1. Secured to o r ferne ing part ot the sleeve 4 is a spur pinion t), which meshes with a spur wheel 1() which is' free to turn on a stud il projecting from Securcdto the inner side of the spur Wheel 10 is. a pinion 12, which meshes with a spur wheel 13, the latter beine: secured to a pulley 14 which is secured to the shaft Q. lVhen the driving belt is u lon the pulley 8 power will be imparted directly to the shaft 2 and the latter will be rotated at full speed. lf, however, the belt shifted onto the adjacent pulley tl power will then bh transmitted to the shaft 2 through the medium of the shaft `rl, spur pinion i), spin' wheel 1U, spur pinion 12, spur 4 wheel 13, and pulley 14, and said spur gears and pinlons are, so proportioned as to reduce the speed at which the shaft 2 willthen be rotated. The pulley 7 is a loose pulley and when the drivingr belt is shifted onto the same the transmission of power to the shaft 2 will cease and the movement of the machine will be arrested.

The above mechanism will be recognized as an intance of a well known form of power re ense and speed-changing gearing, as shown, for instance, in the patent to George D. Mayo, No. 726,178, dated April e1, 1903.

The beltshipper 15 is carried by a rod 1G suitably guided in a bearing 17 on the main trame, and said shipper has an arm 18 (Fig. 3) carrying a rod 19 which is guided in a bearing 20 on the bracket 3 so asto steady the shi `per in its movements. The 4inner end of he shipper rod 16 carries a stud 21 which is adapted to the forked upper end of a shipper lever Q2, the latter beiner pivotally mounted to provide a movable 'liulcrum at its lower end upon a slide .23 which can move to and fro upon a stud 24 projecting from the frame 1, the sleeve being prevented from turning,r on said stud by means of pins 25 projecting from said stud and entering,y slots 2t! formed in the opposite sides ot' the sleeve, as shown in Fig. 4.

lhe shipper lever 22 has cheek pieces 27 disposed on opposite sides of an anti-frietiou roher Q8 carried by the lower arm of a trip lever ltl'which is pivotally mounted upon a stud 30 carried by n projecting bracket 31 on the frame 1, the upper arm of said lever E25) beingr pivotally connected to the outer end of a link 32 whose inner end has u Infojet-ting pin 33 which, when the trip lever 2S) is in the position shown 'in Fig. 1 contacts with the hub 34 of a sector-shaped arm :l5 scoured to n short transverse shaft thi. which is adapted to n bem-ino' projecting from the trame l, this shaft a so carrying the usual lever 3T, whereby the sto )page of the machine 'by hand is effected. The upper t'acc ot' the arm 35 is cam-shaped. as shown at 18, and engages with the bent. lower end lff of an nprirrht shaft -10 which is mounted in a suitable hearing in the. top of the supporting freine 'l enel ie aoteel upon liy the usual fabric or weetecleteotor 'actuated needle-protector or knock-olif device oit a knitting machine, socle, tor instance, as that shown 1n the potentie li. WV. Scott and l-l. Swingleliuret No., @799ML clatefl July 30,

A sfiring el, ooileci around tlie stud 30 and having an arm ll eotingmupon a boss t2 projeoting 'from the lower end ot the lever 29, tends to move said lever in the direction of the arrow, Fig. l, but this niovernent is nor- Inally resisted by reason oit the .tact that the link 32 is normally lielci in the position shown in Fig. l becanee oit' its support by a lug @r3 on the ieee o tlie arm 35. when., liowever, saiol erin is elepresaerlu either logT the action of the linool'oo ill oaf by tlie manipulation of the lever 3l' tlieef'upport of the lug 43 is removedn from the linlr 32 ancl the latter is permitted to drop so as to carry its pin 33 below the .liii'o Se of tlie anni 35, and the lever 29 is tlien tree to beinovetl by its spring il so ae to turn upon ie pivot stoel 30 and, y engageru t ol the venti-fiiotion roller 28 with the, oeeltjpieoes 2'? o! the shi per lever Quiiiove letter eo ae to shirt tlie drivin@` beit from 'the pulley 35 or the pulley 6, wicli it niej] et the time loe occupying, onto the looee pulley 7 The means for one? the erm 35, end thus permitting v of ,tile loelt through the ineclinrn o t ie trip lever 299 ll term emergency t' they not employed flnri e j operation of tlie inacliine. W i, iron/"everj the eliiztt-v ing of the belt from one pulley to another has to be etiected tintin one orderly operan tion of the ineeliine tlie trip lever 29 remains locked in position on Sturt 30, anni the anti-friction roller constitutes the tuleruni upon which tlie lever 22 swings.4 lt/ovenient ot this character is: inno parted to the shipper lever' loy ineens of a 'cam drum l5 wliiclo acte upon sleeve through the mediuinot e, lever andi connecting rod 47, sei lever i6 being ipivotally mounted at one ontlopen a progecting lug.

48 on the iframe 1,' and being pivotally colti nectecl at its opposite end to tlie rod 4&75 said lever carrying, at an interrncfliate point a.

projecting pin 49 which engages with the cam slot in the vairain 'l-i, es eiiown in Fig. l. g'lhe configuration of tliis earn slot will ole end upon the shifting movements of the eljt required at any particular time in the operation or the machine. li, "for instance, tliejsipeed of movement of the machine is to be reluoed at a certain point in the cycle of operations` peri-'orin' by the machine, say whenr themachineis changing irom rotary 'to to-anfl-tro or reciprocating knitting, the

configuration oi' the cani elot will loe suoli as to impart a partial movement to the shipper lever 2Q at such time so es to shift the belt 68 of the rato Step by Step movement oit rotation is iin- A parteol to the drain 't5 so .as to complete one revolution ot the saine during time pertorinence of a complete cycle ot' `operations by the machine, the ineens for eecting such operation being follows: Secured to tlie olruni /l is a ratcnet-wiieei 5G, which is normally opereterl by nawl 5l pivotally mounted upon one erin oli a orenlr lever 52 whose other erin engages; a pin 53 on e lever 5i, vibrating movements being imparted to tlie latter by means of a @ein on the rotating com cylinder of the machine, or in any other suitable way. The ratchet wheel 50 turns on a stud. 55 oi large diameter secured to the :treme Il9 anrl through this stud pass two shafts 5G enel 5'?, the shaft 5@ carrying, at its inner end, a pinetucllled measuring wheel 58 Fig.. l.) which enga ee with the web of fa rie produced by t e machine and is tui-neil loy reason oit .suoli engagement with tlie web es tlie latter clescene on its way from the cylinder of the machine to tlie taire-u mechanism below the Wheel Elie shalt 56 is geared by means of e wir-eel 59 an@ spur pinion 60 to the elia-itt 5?9 wliicli carries a pattern cliain drum Si, tlfie pat-tern chain 62 lim/ing a luy 63, which, on eael'i movement ot the cliein, strikes an arm 6l oi a lever which is mounted eo to swing on a stud 65, and has another arm '6G carrying a plate 67 (Fig. l) which normally engages with the point of the pawl 5l. anallio e tlie same in position, where it ie ireetrom engagement with a low tooth 68 oi" the ratchet wheel v50 anni conesquently will not impart :my movement to the latter. l/lflienev however, tlio lug 63 strilcee tit-e lever erin te it will reise tlee eamo and 'therefore depress the arm 66 so as tol permit tire pewl to drop into engagement with the tooth 68 and start'tlie movement ofthe ratchet wheel, suoli movement beine* then continuefl by engagement of the avi/5lA with the normal or nigh teeth ot tlie w. eel,

the erin 66, when in its normal position, tailin to )revent the eure ement of? tlie owl J i l) held out of enegement with the low tootl'iV et wheel and therebv again arresttlie movement oi' time same. yo'tatioi'i ozttlieratoliet wheel 50 ie therefore etlectecl only et periodic intervals rleterniineol lov the titi malerei ieng'rlll ol'' ille plliiern. cllziin 62. Whl'lre severlll sl'liliis from one speed to another nelly lleve io be mede during ille complete cycle olf operation oi the lnllclline ille ratchet wlleel 50 may conveniently be provided wil/ll `iwo or more low il Jill G8 distributed :lrenlld ille periphery of ille Same.

The lever 37, whereby ille erm is oper lied lly llzlnd in order io eilfeelb ille ellil'i-illlr,r oi' lille belt from ll falsi pulley enio ille loose pulley in order ile slop ille lllllellille, carriel il pill 7() wlliell is intended io lle cfllllllleted 'lo ille izllleulp lever ol ille nlzlclline, so that in -ille event of :lily sudden drop of the llltiter, Snell, for insillnee, als n'liglli be caused 'ny the web 'runl'ling oil" ille needles el ille nlzlel'line, the levez' 37 will llc lctlili'lled so :le 'lo ll'lllzoulziiiclllly slop ille lnovenlenl; of lille ll'leclline.

nlllke ne clilil'll to ille nleclll'lllis-tnl lvllele ley ille clllln dlilnl fll opeelied in llcel'lrdmice with ille orderly operlliioll oli' ille lllllelline, als illis lllls; long.;- ieeell eoll'lllloll exeepl; as lllil elelllent oli llly new colllllinliiioll, lllld l do not limit illy prrflelli clllilll to llleelllll ol' illia` ellllrlleier, :le llllllly elplivillelli lees eoilld lle need l'er ille pllr'ljllrle, ller o l lilnil; lllv llrlllullr elzlinlll i-o ille pllriiilr lr elllerpfellcy devices lvllerelly illev Lrip lever il.) isz llelzueiell, ne lllelle nllly :ilse lle llllldilied il'illllollll llepl'lriiuej l'rolll ille elisenlzilll. le: illlree of illy iillvelll'lilln.

ll'le ierlll l Shipper lever l le; elllljlleyed ill Sonie of ll'ly elllill'lll does-l nel; neecllsllrily lneell e` lever 'for opel-:lling ll llcll shipper, llillce il` ill obvious lllllln lille releasingl del ice could lle elle oi ille iypl; elllplilyire :l lllllell null illll 221 peed ill-:lin would lle operetell l'ly oillcr l'lelillsl lllzln pulleys llild ll slli'lfiing llelill l. lll ll` ,f-lpeed changing ersieppillirlllecllllnir nl iior li'nili'inlj; inllellinesu llc coillllilllliioll eli :l lleli shipper, ll l-lllipper level' i'e' :lclllllling; ille saline` llllvillg: ilve fulrrullef, :l lrip lever i'llovidillgg' one o'lE seid 'lilllel'll1'lfls-, einer geney devices for relelxf-:illglj Suid lllip lever, clllll nleellllllzllll lllllrillgfil. :lcci rilllllee \viill ille orderly eperlllillll ol' ille llllu-lline. and lnllliel'lllnielln lellerelrl' wid cuni lllel'llllnislll is conrleelfed if 4ille oilllejl' l'l'llerillll ol ille :ellipper lever.

ln Speed ellzlllgving er Sillppinzfr roel-llu- -nl `nl 'l'or lrllilziil'lgl nlllellilles, ille l'zelllll'llllllioil ol :i fallipper leverl :i irip lever on wlliell seid Sllipper lever lilllcrlllned, rlluarlgelley slop nleellzlnisnl for eol'llrollingr` ille Alllsil'llll'l oil' Sllid irip levery l:inl l'llecllllnilliln moving in accordance willi ille orderly operlliien ol` ille meelline, :nld nleellunisrll.'lvllerellv lille Sllipper lever llllder eenirol ol" ellid elllll niecllilnisln, wllerclly ille :slli'llille: ol' ille llell muy lle ell'ecied ellllel` by silid'clllll lllecllll i'liflnl or by ille operlliion el' ille irip lever. 3. lll speed cl'lzu'lggingg or elllpp'lni;` llleellll;

'nisnl lor ll'liiiillp; lnllellil'leli, ille eoll'lllinllliolil oil il shipper lever llllvillg cheek pieces illlereon, l1 trip lever llllving e lllemller projecting lleilween Seid cl'leeli pieces :ind constituting e llllcrunl for ille Shipper lever, cem meehlv mism llloving; in accordance "with illieorderly operation of ille lnllel'lille, and ineens wherelly Seid elim mechanism is caused to operate ille Shipper lever upon. ille before-mentioned llleruln.

il. lll speed changing; or siepping xneelmV llielll lor lclliiiing nlllellines, the combination of the shipper lever, :l irip lever on which ille seine ls fulcrlulled, :l slide having piv otlll conneetil'ln with seid shipper lever, cern nleellilniein llloving in zlccordllnee with ille orderly opel-ation of ille nlllclline, and ll'lellnli whereby slllid clllnl ll'lecllilnislm is elllllsed lo ope alle l'lllid Slide, whereby the ellipper lever muy lle ellused lly the nlovelllenl; of ille slide io swing upon its fulerlnn llll ille lrip lever, or lle lense/d by tlle movelllelliy el ille irip lever io Swing upon iis fulcruel on ilie Slide.

5. ln ll power lelcllfle end ecn'lrol nlecllzl- 'llilllll illlr ll'lliliing lllzlellines7 clllergeney zlciu- :lied devices, pllllerll controlled devices. ll prever-rel a :se :ind flpeed ellllnging drive eenling, shipper nlezllll: l'or ronirl'llling; ille lill-lese end speed rllllnee, :nld :l lever conlleeied :ily elle end lo :luid shipper ineens, ai lille oiller io one ol' seid devices, :ind in ille llliddle io ille olller of Filid devices, lvllerelly ille ,ellipper lllezlnl: llllly lle independently :leiullied lily eiiller olf Suid devices.

l. lll :l lilliillingg' lllllcllille, n. `vl'lriilllle Speed nleifilllllislll, lill emergency sliep motion lllel-llllllielll rlllllprlldllg; :l pulver release devire5 :l sllipper lever lor moving ille rele-lise device, fllpllllle in elle position of shifting ille drive irelll one Speed io lllloi'ller Speed,

ellid sllipper lever llllvlng; ll nlovl'lble fillclinn, il, :epi-ille; l'lciullied lever providing iliolle elld :l 'l'rr-e ll flaring: lol llllid Sllipper le ver, :ind nlellnl-l lol' l'elneing ille spring l'lcinllied lever, in colllllinlll'ion will! pllllern eollll'olled Ineens: l'or llloving 'l'lle l'ulcrunl le illllependenlly rollilrol ille posil'ion of ille nell llllipper io vill-y ille speed.

7, lll ll ll'llilli'lllg nlllclline, eulergeziey eeiilllied slop lnolion nleellzlnisl'n conlprisine: :l power release device, o sllipper lever l'or lllovillp; ille release deviceAJ llliving ll lllevllllle 'l'ulel-ulll, :l spring llciullted lever prii'vii'lille; lli olle elld'll' 'l'ree belli-ing for seid Aellipper lever, l'llld 1n uns for rel elsing ille spring :lcll'lillied levee; in conlllillliiion with plliierllVeenirolled ineens [for nloving ille l'lllerl'llll lo indepenljlenily eollirol ille position olf ille lelclllle device.

il, .Tn n, stop motion deviee 'for knitting mzlcllillcs, ille colnllinlltion olf ll shipper leve'r` f llllline; two llllcrllllls.' ll ill-ip lever ellrrying one ol sllid :lulcrlulls :ll'ld llllving :l locking 'linie` lnellnl-l lending fo lllove ille trip lever to lopelllle the shipper lever,ll roek :shaft carry

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