USRE434E - Improvement in cxrding-engines - Google Patents

Description

diereinafter. .f

ITED STATES PATENT OFFICE.

A. D. SHATTUGK, OF GRAFTON, MASSACHUSETTS |MFaim/smeert IN CAaDiNe-ENGiNi-:s

Specification forming part of Letters Patent To all whom it may concern l l Be it known thatI, A. D. Slmr'rncir, ot'

` Grafton, in the county oi' \Voreester and State of Massachusetts, have invented certain Improvenients in Gaming-Engines, of' which the following is a t'ull,vcle ar, and exact description, reference being had tothe annexed drawings, making par-t of this specification, in which- Figure l is a front View; Fig'. 2, an end View; Fig. 3, details which will be referred t0 I will here give a ew delinitionsA-necessary -to aproper understanding ot' the subject.y

` Thef` small fcylinders of carding-engines which operate in conjunction with the main strippers,'aecording to the nature of vtheir operation with respect. to each other or uponI A. Ajvorker ,first runs slower than its cylinder-'g second, its teeth are. set against the cylinder-teeth; third, it is cleaned of itscottou by'agstripper, from which the cotton vis taken again by the cylinder;

Anoier first runs slower than its vcylinder second, its teeth are set against the cylinder-teeth; third, itis cleaned of its cotton,

If.; by a: comb or by a stripper. ,A

" 'A'stripper first runs faster than its cylindcr5 second, its teeth are set with the cylinder-teeth; third, it may be cleaned of its cotton by another stripper, or by adoiier, or --by a cylinder.

Tlieabove terms are used with sole refer- -nce to the action of the cylinders 'for the time being, or to their action upon the particular-eylinder with which they are running in'y connection, the same cylinder being at the vsame .time of one characteras-respects its No. 15,781, dated September 225, 1356; Rcissue'No. 434, dated March 10, 1857.

bythe maincylinder; or the main cylinder may become a doiicr and receive cot-ton from a stripper that has operated upon anyv other cylinder of the card.

In cardinmen in'es as ordinaril Ycon strueted and operated the main cylinder is cleared or stripped by hand at intervals, the card being stoppedl at the time for the purpose. Upon every such occasion, and after cach stripping,

the operation 'of the card is modified and a variation in the sheet is the consequence. This variation or unevenness ofthe sh ect runs through the Whole subsequent preparation of the cotton, and is even felt to a certain extent 'in the thread which is ultimately produced.

Efforts have `been made to do away with the necessity of hand strippingI to avoid thev objections to which this method is liable by fth,c .emnloyinen t Q ,astrippercylinder which alternately runs faster- 4andslewerthan the main cylinder, so that the stripper alternately strips the main cylinder and` 'in' turn is stripped thereby as-the relativeiyelocity ot' the two change. It is. evident, however, that a card thus constructed and operated cannot produce an even and uniform sheet, as at one time the stripper is taking cotton oii' the main cylinder and at another is returning it thereto.

The object of thelirst part of my invention is to remedy in a degree this disadvantage by the use of two strippiiig-cylinders, which are caused to run with a variable speed alter-A nately taster'and slower than the other, and at a velocity alternately above and below that of the main cylinder. By this arrangement,

one or other of them is constantly stripping' vthe main cylinder whilethe other is being,`

stripped by the main cylinder, as may beseen by reference to the accompanying drawings, in which- A is the main cylinder, and B and G the two ,variable cylinders, whicli vhen taken outof their connection with the doiier l? and Worker.

0 show one operation vof thisA improvement, which will be hereinafter more fully set forth.

- The cylinders B and (inlayv be: placed upon the card in positions remote fromeachv other, and

the result specified Will-.still be attained.

The second part of my invent-ion'eii'ectnally.l

obviates the abovenamed objection, and eonn sists in the use of a doft'er inconnection with one or'more strippingicylinders, whereby au uninterrupted and continuous movement of --thc cotttn or other liber is attaincdin its proeressthrough thev card, which secures uniformity in the sheet.

' When a single stripper 1s employed, whether it run at a constant or vvariable spced,the

doit'er is used running at a constant "speed, and is stripped bythe main cylinder. Where ,two strippers are employed, they may be caused to run. with a variable speed alternately faster and slower than the other, and at a velocity alternately aboveand below that of the main cylinder, and thus oney or other pt' them is constantly stripping,` the main cylinder, while the cotton taken oft' is instantly returned to the main cylinder either by the doii'er or by tat one yot' the strippers which at the timein "y be running slower than the cylinderl and acting as a doer to the other stripper, as seen by reference tothe accompanying drawin gs 5 or a stripperto the main 'cylinder may be stripped by another cylinder which shall take the ber to the main cylinder, the main cylinder acting as a doiier.

it, as khas heretofore been practiced. thev stripper is `placed to the rear of the worker, the `cotton taken up by the latter is 4carried over and return ed to the mainccylindcr ata point behind that 'fz om which itis taken oii', so that the same fibers, even after they 'may have been suiiciently carded and opened,

arc again and again submitted to the action ot' theV same worker, whereby Ithe staple isin! jured by repeated working and the capabilities ofthe machine materially lessened.

"When the stripper is placed in advan ce of its w-worker, the cotton is passed directly through the machine without being carried back to bc n grain operated upon by the workers, whereby .the machine .is rendered capable of an inf locity somewhat less than that of the main cylinder by kthe band -D fro/m a pulley, E, upon theshaft. ot' the .main cylinder. lUpon vthe opposite end of themachinethese cylinders carry the cones li and Gr,'the band H which actuates them, being regularly traversed from one end of the cones to the other by the. guide I, which'. is pivoted' at m, and is moved in one direction by a cam, K,uponl the shaft of one ofthe small, cylinders, and in the opposite direction by the springt, or in any other customary and suitable manner, .The peculiar method by which this is. effected forms no part of my present invention, and vneed not be further described. Y

It is evident that as the band 1s shifted upon the cones one or other of fthe cylinders `B and C will run faster than isgdue to the inotiou of the driving-band l), and that some. device isneccssary to enable the cylinders to run' indeliendent of theirpulleys M andi-N whenever their motion is accelerated. This is et'A fectedin the following; manner: The pulleyN M and N are-connected with the "shafts ofthe cylinders by nica-ns of clutches so arranged that whenever the cylinders aredriven bytheir pulleys M and N these pulleys'are clutched with the shafts; but whenever the cyliinlers,

run faster than is due tothe motion of 'the band D their Ishafts revolve ireelywithn the pulleys. The device which I have chosen for "this purpose is represented in 3, inwhich N is the pulley, A2 the shaft of the strippin cylinder, m a pad orblock which is secured to the shaft A2 by the bent spring n, which passes through a bolt or catch, o. The spring n. revolves freely in .the block r,p1 ojecting from the shaft. When the pulley revolves faster than theshaft, its friction uponthepad draws.

the bolt o through the shaft and into'one vof the notches, s, in the wheel, and thus the latter communicates 4,its Imotion tol the.' shaft. When, however, the latter revolves faster than it is driven by .the wheelthe pad m is driven in the opposite direction, the bolt ois unlocked from the wheel, and the shaft 'revolves independentl y of the wheel. The cylinders B and G can'never revolve with a .velocity'lcss than that due to the motion of theband l). Either of them may, however, revolve with a greater velocity, as. before ei'rplained.I Suppose thc band H to be upon the large end of the conc G and the smaller end of the conc F, the cyl inder C will then run with-its inininnnn velocity, being,` driven vby the band l),and the cyl` inder B will be .driven at ainorerapid rate by. the band H, the shaft ot' this latter roll rc-v volving' freely in its pulley,.which is still dri ven at a uniforingrate by theband l), as before explained. The cylinder .B now strips the mainA cylinder, talringjotf all, or very nearly all, the cotton from its surface. As the band H is traversed backtoward the machine the velocity of the cylinder B diminishes and that of the cylinder (l increases, and when the band has arrived at the small end of the cone G the cylinder B travels wi th its minimum, and

with its maximum, velocity.. The cylinder cotton received from thc iormor onto thc main cylinder, by which it is Strippcd.

lVhcu thc cylinder .i runs at its in axinunn vclocity, as hcrctot'orc dcscrilwihit Strips thc main cylindor, and thc cotton thus tall-ru oil' by 'tbc cylinder .'l is carded onto thc cyliudcr G, which now act-s as a. doft'cr to l), and as U now runs slower than thcmain cylindcr it is stripped bythe latter, and thus thc niaiu cyl indor and. thc'cylindcr 0 arc stripped.

When tho cylinder C runs at .its maximum velocity, it strips Athc .inain cylinder and is doifcd by thc cylinder l, which in its turn is stripped by tho main cylinder. '.lhc cylindrill is now strippcd by tho in ain cylinder. 'lhns bythe uscol thc doll'or in connection with tho,

variable cyliudvrs all` thi-.sc c 'ylindcrs arc stripped und clou-ucd at short intervals 'ol' timo without occasioning any brook or uuy cvcnnrss in tho shoot, and without thc ncccs sit-y of stopping.)` thc-cugino i'or thc pui-poso.

lb will'thus bc secul tha/ta inachiuc thus a-rranged with two variablc cylinders -and anlrnl'cr bccinncs a. compound or doublc card, thc stripping' process bcing also a cardin; procrss. ln all otlicr lnothods vot cardingl hcrcintirc usod thc stripping procrsn is an interruption 'ol' thc carding procrss. A

2y thc application ol' other varialilo cylindurs in addition to those hcrciu dcscribcd tho vrai-ding,- ability oi' thc nmchiniuluy bc proportionatcly incrcascd.

'lhc third part ot' my invention will now be dcicrihcd. v

0 is a. worker, which is strippcd. by thc cyl indcr lt. This cylindcr isplaccd in advanccoif iho workor, and trons'iins thc cotton whichiti talcos from it'to thc inain cy-l-indcr at a point in adraunc ot' that lroin which it was takcn oil',

so that it is passod dirci-ily through thc nia` chino, and in no, .case is thc inalcria-l twice oporatcd upon by the Saulo workin'. v

O is a worker, occupying` a. similar position with rcspoct to its strippnr l), as will bc Soon by rolia-cuco to thc drawings. At S is rcprrsciiti-ii al workcr havin;Y itsl strippor lt bohind itin thc ordinaryinauncr, thc cotton talicu oli' by the. strippcrboingl rcturncil to thc inain cylinder at a point; hack ol" that from which it was inl-:ou olif.

vItis cvidmit- \\'ln-n thc lcyliinlors arc thus arranged that thc iibcrs arc liablc to be rcpcat-cilly talicn up and cnrricd back by thc sanno worker, as ,-hci'orr.)l cxphiincd, whichvob` stripprr li. lufiovrrn ilu` lwo workirn and S thcadvantag'ns ol'iny systvni arc incnsuri'ibly i xtl'ipprrs or (financi-:i arraiugml and oprra-ting iu. thc n ninncr substantially as hcrciu dc-- scribed, il'or 'the purposc ol' prcvcniing: tbc lilling'up ol' tbcy main rylnilrr and proilnif-inj ,r :t ullil'ol'ln Nhvoi.

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\\" i l Mossos:

J. Il. Snrru, Il. M. SMITH.

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