US842944A - Protector and smash-preventing mechanism for looms. - Google Patents

Description

7 PATENTED FEB. 5, 1907. v R. GROMPTON. h PROTECTOR AND $MASH PREVENTING MEOHANISMFOR LOOMS.

APPLICATION FILED MAY 19, 1906.

.' 2 SHBETB-QHBET 1.

Java-6a No. 842,944. PATENTED FEB. 5, 1907.

R. OROMPTON. PROTECTOR AND SMASH-PREVENTING MECHANISM FOR ooms.

mm mA-mnw FILED MAY 19, 1906.,

2 SHEETS-SHEET. z.

J1 I pl 1 UN ST ES v PATENT OFFICE.

RANDOLPH CROMPTON, or v voRcEsTEn, MASSACHUSETTS, ASS-IGNOR- To OROMPTON-THAYERLOOM coMP nY, or woRoEsTEn, MASSACHUSETTS,

A FIRM PROTECTOR AND SMASH-PREVENTING MECHANISMFOR-Looms.

spe cific'ation of Letters Patent. Application iiIed MayIQ; 1906.' Serial K013173661.

PatentedFeb'. I QQZQ To all whom; it fina concern;

Be it known that I, RANDOLPH CVROMPTONY,

acitizen of the 'UnitedStates; and a resident of Worcester, in the county of Worcester and State of Massachusettshrive invented an,

Improvement in Protector and [Smash-Preventing Mechanism for Looms, of which the following description, in connection with the end of the lay and a single'shuttle-box at the said shaft having a central dagger and at accompanying drawings;- is a specification, like letters on thedrawingsrepresenting like parts. I

Looms havinga shifting shuttle-box atone other end .of the lay are-commonly provided with a single shaft at the front. of the lay,

each end a finger contacting with the usual binders. of the shuttle-boxes] Whenever a shuttle is absent from. the boX in which it should be'for proper running of the loom, the .binder is-not thrown outyand a spring sur rounding the. roteotor-shaftturns the atter the layis moving forward and the loom is stopped automatically. The usual protect ing mechanism also stops the loom if for any a reason the shuttle was eft to protrude-from the box; otherwise the warp would bebrokenand a warp smash would occur.

' tie-boxes at either end and means embody ing my and the improper The obj'ect of this invention'is to prevent a loom from being started whenever'the' operae tor in supplying-a shuttle fails to place the shuttle in the taken that is to be replaced. J

The mechanism to be herein described with which I have embodiedmy invention is also so constructed that it serves the purpose of the usual protecting mechanism to protect against the absence of a shuttle from its box boxing of the shuttle to' thus avoid warp smashes. I Figure 1 in cient portion of the lay of'a loom with shutinvention attached to the lay. V Fig. 2 is a top or plan view thereof, said figure also showing part of the breast beam, the lever it should occupy as box from which the shuttle was front elevation shows a suffiofthe lniockeoff motion, and part of the shi el -handle; Fig. '3 is adiagram showing t e- I ay,, the breastrbeam; and-lever referred to forming part of the knock-'ofi motion in section, together with-the cam-shaftand' means actuated: thereby for operating theidaggers' alternately to place -them in their inoperative position; *Fig' 4 isa detail tobe referred to in the operation of the protector-rods; Fig-.- 5 shows'part-of the lay and protector-rod H chiefly to illustrate the spring for moving'the 1 protector ro-d in one direction.-'./

' represents. .65 the layeb'eam, carried by the arms A ,Inounted as'usuali-n the'l'ay-fraine. This My has, asshown at its left harid endyFigs. land 2, suitable guideways in which-is shown as slid- 4 ing a drop-boX B,'containing, as represented; .7 four'cells, saidbox'es' in practicebeing raised and; lowered by any usual shuttle boreshifti- Referring tothe drawings, A

- mg mechanism common to drop-box or fancy looms and controlledbya pattern-surface. Each of the cells of the-drop-boig. has itsown shuttle,- and the shuttles'are thrown from the drop-box to the singleibox B at the-frighthand 'endof the-lay by any usual pickerstick, as B i, when the shuttle-box. occupies a --position atthe level of the. race of. the lay. The single shuttle-box B has a picker-stick B 'to throw the shuttle therefrom back across the lay into the empty cell of the shuttle-box. The shuttle-boxes have u sualbinders'a' b. p 7 In front of the layinjsuitable bearings a and a a're mounted two protector-rods'a, b Each of these'protector-rods has afinger 2 or 2 and said fingers act, res'pectively, against the binders a b in usual manner. I j The protector-rod a has a dagger f,- and the protector-rod b a dagger e} and each protectorrod is surrounded by a suitable spring,

- The protector-rods a b have -applied to them,

respectively, arms a c said arms being fixed to said rods by suitable screws 10. The rear roc endsof these arms have. projecting pins 4, (see'Fig. 2;.) that enter slots in ears 12 atoPpoj site ends of a lever c pivoted etc on anear depending from the bear ng a. Thislever c 'is connected by a link with one end of a lever 0 mounted on a stud c of a bracketsuit-ablysecured to the loom-frame. The

lever has a roller or other stud 7, that enters a cam-groove 8 in a cam vc fast on the usual cam or cross shaft C. As the cam is rotated it moves the lever 0 and through the link c tips the lever a about its pivot, and consequently turns the protector-rods c 12 alternately, each protector-rod beingso moved that at one forward beat of the lay one dagger is elevated, the other dagger being elevated at the next beat of the lay. In otherv .words, when one dagger is lifted the other is lowered, and vice versa.

The breast-beam D has at one "end the I usual slotted and notched plate D, in which moves-the usual shipper-handle D said shipper-handle being partially shown in Fig. 2 in. the position it will occupy when the loom is running. 2 also shows a knock-off lever D pivoted at D*, said lever when struck by either dagger, as will be described,

. usual stopping mechanism to stop. the loom.

The shipper-handle and stopping mechanism are not of the essence of this lnventi'on, and

' and stopping mechanism can be used.

The. can]. referred to is constructed and timed to depress the dagger cooperatingwith the shuttle-box at the opposite. end of the loom from which the shuttle is thrown, so that said dagger is placed in its inoperative posi tiondurin the forward beat of the lav as long as theloom is running properly, or, in other words; when the shuttles are properly boxed one or'the"other of the daggers-viz., the dagger farthest-from the end of the loom where the shuttle starts-is depressed into its inoperative position as the lav is being moved forwardl by the usual pitman 1), connected with the crank-shaft pfsaid daggers being depressed alternately, according to the direction of the flight of the shuttle-and b v meansindependent of the binders that work through the lingers ofthe protector-rods to lower either detector-rod and place its dagger in its operative position to stop the loom whenever a shuttle absent from'the shuttleboX. that it should occupy when the lay is being moved forward.

The two protector-rods each having its own dagger and binder-fingers not only effect, as usual, the stopping-of the loom in' the usual manner whenever a shuttle falls to I,

enter its proper shuttle-box, but also to stop the loom whenever a shuttle is not properly boxedthat is, whenever the shuttle extends outwardly from the box into the shed.

' consequently need not be further described more than to say that any slnpper handle' loom s not stopped.

In accordance ,with this invention 1 have provided suitable dagger-depressing means, herein shown as a cam c, lever '0, link 0, and lever c for operating the two protectorshafts, so that in case the operator fails to re-' It will be understood that the shifting shuttle-box at the oppcsite end of the loom presents an empty cell in line with-the raccway of the lav, and consequently the bindera of that empty cell will occupy its inward position and the spring a of'the protector-red (L will raise the daggerf, (see dotted lines, Fig. 3,) so that as the la v is moved forward in such conditions the dagger wauld meet the lever D ,"knock'ofl and stop the loam. This of course has to be prevented, and consequently while the shuttle is being driven from thesingle-box end of the lay across the vla v to enter the empty cell Cfti'lO'IDUKitblG shuttle box the cam referred ta, acting througl'i the means described, turns the protector-rod a and depresses the daggerfl'rom the position shown in dotted lines, Fig. 3, into a position behind, the dagger e, which isde pressed by the shuttle in the cell of the single box, so that the loom is not stopped.

i-tssuiningthat the shuttle is to be thrown from a cell of the shifting shuttle-box, the shuttle, throughits binder r1, acting on the finger 2 of the protector-rod a, will turn that red and depresstho dagger f, and inasmuch as at this time there is no shuttle in the single box at the opposite end of the lav the spring I) of the protector-rod b acting normally, will turn said rod, raise the dagger e, which if not prevented would stop the loo-n1 atthe nextdorward stroke of the lay; but this stopping \of the loom is prevented by means of the cam and the devices actuated thereby that turns the'protoctor-rod 1) independently iii a direct'on to depress the dagger 0, so that the j It will be understood therefore, that these daggers are depressed alternately positively during the operation of the loom/by the dagger-ilepressing means, said means acting to depress the dagger farthest from the end of the loom from where the shuttle starts. If for any reason a shuttle has to be removed from the drop-box end of the loom andashuttle supplied in its place, the shuttle 11st be placed in the cell of the dro box fro which the shuttle was taken,

an so, also, if a shuttle is taken outof the singl box of the lay the shuttle-must be replaced in that box ;'otherwise the loom cannotbestarted. r I

It be .obvio1 1s should asliuttl'e that failed for anfifieason beremoved froma, cellof the drop-boxind be replaced in the single shuttle-boxfand sho'uld bethrown therefrom fro I pick, for thee "pt box ward position,

that the shuttle leaving the? ingle box could not enter ajcell of the movab ebexifforfany reason" the boxes were moved\th.l'q: lgh the pattern-surface, etweenf one and the next under such a condi-.

tion would beout oil w th the 1st R ofthe race. If, for instance he huttle shod f ;be re-- moved 'from-oneof th cells of the dr p box,

at theend'of the lay .and janot er shuttle to 4 take its'jplaee should be applied to the singlebox end oi-zthe 'lla" thebinder of the sing-lebox end of'the ay would be moved out-e wardly,thus depressing the dagger e; but the binderin the empty .cell of the drgp-box at the opposite end'oi the'lay oeenpymg its in-- permits/thespring a on the" pr'otectorro'd to raise the dagger f, so that the loom will beinimediately knocked off at e the next fewa'rd beat of. the lay.

I cause in: the

If thf .sh ttles fail from any single-box end of'th'e'lay and the operator should shoot a shuttlethrough the warp into" 35 r e where the shuttle ougntto. be

surrrounding the protee the their empty cell ofthe drop-boxes in line with the race have hereinshow b oth protectords,

' controlled by a single cam for moving the lever 0 made .and mounted as a whiflletree;

but my invention would notbe de'parted from if instead of one cam I 'used two cams and setthem so as to act alternately upon like levers 0 each lever being connected by a like link 0 with the rear ends of the levers c c";

The slots in the ears 12' permit the pins-4 of the levers c c to slide in said slots as a pro- .tector-rod is'moved through the action of a finger 2 or 2* on the shuttle-binder with which it coacts. v

I believe I am the first t controljthe. protector-rods independently. o the binders and. usual stopmot'ion devices to move the daggers alternately during the operation of th turn the altern 'w a 2,. In al.100

finger coacting with I o erationin case the sh bet 4.-

100111 and to place-either'dagger in a pos tion one o theboxesv should be replaced by a shuttle 'put into the other box and conse-.

quently my invention is not limited to they particular means shown and described for turning the protector-rods alternatelyto.

Iiaving described my menses, .I I claimas new and desire tosecure by'Letters raise and :lower alternately the daggers in the manner described.'-'

Patent,

ev g iW P oactlfig'wlthitheflisual binder, and means to bifmec airismcornto sto the loom in case a shuttle takclrironi 7b i dagger and .with a finger protector-rodsto place'the daggers e in their ino erative ositions, 4

bined with a lay? two protector-rods,. each prov ded with r {dagger and a finger, the

and

means. to move the pre \tge' n Wi ently to lower that dagge whichis next to the ector-i ods independend of he lay from wine pthe shuttle starts, I

3QIn aloom having a series of drop-boxes rovide'dlwith binders, a protector rod hav a finger coacting with each of said ,binders,-and a dagger, and means to turn said rod independently of-thebin'der to put its dagger;

iii-position to enable the lpoin to continue in ttlevcoming into the mply cell of the move;

properly boxed, n

orie end thereof and a single boxv at its op- ,p site end, said boxeshaving usual binders, a air of protector rods each provided with a agger, and means independent of the bind-l le' shuttle-box fails A -9 a loom-,- a ;lay..having drop-boxesat ers to place one of said aggers in position to stop 'the loornin case the operative places ashuttle in any box except that fromwhich theshuttle to be replaced was. taken.

/ In a loom h ving drop shuttle-boxes atone end, a protector-rod having a dagger that is put into loom-starting position in case the shuttleois absent from the shuttle-box,

and independentmeans for moving said. proteeter-rod to stop the loom mcase' theslnitfore starting the-loom. v

In testimony whereof I haveslgned my .name to this specification in the presence of.

twosubscribing witnesses. p RANDOLPH CROMPTQN.

Witnesses;

1 CHARLES F. ALDRICH, Rom. C.'DOUGLA S tle has .not been applied to its proper cellbe-

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