US1058292A - Shuttle-checking mechanism for looms. - Google Patents

Description

l Patented Apr. 8,1913. 2 SHEETS-SHEET 1.

C. H DRAPER & J. NORTHROP.-

' SHUTTLE CHECKING MECHANISM FOR LOOMS. APPLIQA TI ON FILED FEB. 161 1911. 1,058,292.-

- mentors CZa reHD/zz Jcr QM. m X mm. 4 A r a witness es:

0. H. DRAPER & J. NORTHROP. SHUTTLE CHECKING MECHANISM FOR LQOMS.

APPLICATION FILED FEB. 16, 1911.

Patented Apr. 8, 1913.

2 SHEETS-SHEET 2.

limeenn and the United ipensle, in the eennty lite EvZlHSSi-RClUASGttS, i improvement in Shuttle enanism 301 Looms of which 6e- "pini n in eenneotion l ii-Wings, is

n the drawings "1 liei'einei ter described more particularly to A prepei pesitioning of stint it is pie reel n the opposite sine at: the importance of thee insuring groper hex 11g f the shuttle in a common loein is well 11ml XTl by those the 213m and failure in this i'eg'etd :1v recognized sen {'08 of warp laresl: u iile nncl xpen In filling re ing loon'is, tee iin' nnrtenee of prop neg shuttle becomes einplmsizecl "is-e no in positive for the action of nis 11g: mechanism either replen breakage oceui, en of e loom, th om one snut- .e (0.11 ene in the sense it would H be as the lay sition in its forward moveof the cloth. It is l :ewn to those familiar art, that owing to one 01' may: eat n t, 2. causes, the operation of the lean: \eries and the effective-action of 1e picking means on the shuttle is not tmiam, Hi 1 the shuttle does not tn result teat 'e vs enter the shuttle box 'et the opposite e of the 10011) when tlieiley is in the same position of its forward 'mwementn If, for I lance, the pick is e- Week one or relatively nen-efiective, the shuttle will ente'f the opposite box relatively later in the forward movement of the lay; While, on the other hand, if the pick is relatively strong efiective the shuttle will entepthe opp0- site be relatively earlier in the forward eement of the lay. 111 the first case the tle may not fully enter the sex in eppw end PIITPOSQS theiprovision st'erting forward; and Fig to the usual r, WhEEL'QZLS in the v.

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in both loom.

flYith the above generally stated in V18??? tlie present inventionlnis for its aims of means Whereby to apply to the shuttle as it enters the box, achecking action proportional to the picldngenergy oi momentum of the shuttle and to issue proper bexine: 0f the shu tle flVlEili-QZfl" the pesition of the lay wl'ien "he slinttleenters the box, all of which will here lllfifC-l" more fully appear, anal be clefinitelv painted out by the olaiins I In the drawn s which illustrate a con venient time of means for carrying the invention into preotieel etfect,-Figure 1 represents 111 plan View sutlicient of the front'po'aftion oi loom to inzike clear the use of the gresent invention; Fig? is it sec-- tion. on line 53 -2 lllg. *1, showing nne form 01" the invention and the position at the parts when the ley is in full forward position; Fig. 3 is a Vlfi'W similar to that of Fig" 2 showing the relation-of parts when the law is in substantially rear positien s ncl 4; is e similar View skewing the lay in center position, the full lines indicating the lay as moving forward. and. the tlottetl lines as moving reei ward.

The leoni frame 1, the breast teem the lay 3 and its mounting, the crank .Sln 4, t-he'cl'ank 5., and the connecting rod -6 jun ing the crank and laynleff be of, any 1152131 or desired form and construction. The lay 3 maybe previklecl with usual shuttle boxes 7 one at each aid of the lay, as indicated in Fig. 1. showm the shuttle boxes are-each provided with a fixed front wall 8 a rear binder 9 which is pivoted at its outer end 10 to the lay or one of its adjunc but it is to be understood that the inven' In the particular construction 95 tion is not re--109 stricted in these respects and that the shuttle sexes may be variously modified Within the true scope of the lnv'entlon. The floor or lower Wall of each shuttle box 13 shown as having a slot 11 for the passage of the picker stick 12, Fig. 1, which by its movement longitudinally ot the 'laycauses the picker 13 to act upon and throw or pick the shuttle l iall as is 1510111111011 undefined )bvw ly;

the present in-' an ing side will be provided with the usual exit for the filling carrier, but as thisisold and Fig. 1, having a dagger 17, under certa-in tact with the bunter 18 connected t'o the knock-off lever 19, pivoted at 20 to thebreast beam 2, the-other end of said knock-off lever being disposed to bear upon the shipper its usual holding notch 22 to cause loom stoppage,- as will be fully .understood by those skilled inthe art. The protector rod 16 is normally under the control of'a spring 23, Fig. 1, one end of which is secured to the rod by a collar 24 and the other end wherebf is secured to one of the bearings 15, the construction being such that said spring nor mally acts to raise the dagger, when the latter is free to respond to the demands of the spring, and placethe end thereof in position I to contact with the bunter 18 on the forv ward movement of the lay.

Secured to the lay adjacent each shuttle box is a bracket 25, to eachof which is pivotally connected a device to act upon the adjacent shuttle binder to check the shuttle as it enters the box. This device may for convenience of identification be herein termed the shuttle checking-pressure trans mitter, and in the form shown it comprises a finger 26, the upper end of which is adapted to bear upon the adjacent binder, and an arm .27 extending beneath the lay. Sa1d thereof, the construction being such thatshould ashutt-le be roperly boxed in one of.- the shuttle boxes, t e finger 26 of' the ad a- IY fcent shuttle checking-pressure transmitter would befmoved backward turning about the axis 28, raisingthe arm 27. and, through the toe 29, turning the'protector shaft to depress the dagger 17 sothat on the forwardv I movement of the lay, the end oflthedagger Will not contact .with thetbunter. Should,

however, the shuttle not enter the boxsufli- I ciently to move the adjacent finger 26ba'ckward as described, the arm 27 will not'ilift the toe 29, arid on the forward movemgnt of the lay the dagger will contact nth th e-bun- I ter, and cause'loom stoppage. I

.. It is not essential to the present invention that the protector rod, dagg er, and hunter I be arranged in the partlcular' relation stated, nor that the rod. be dzrectly under the well known, its detail showing and descripconditions to be described adapted to conhandle 21, Figs. 1 and'2,'and detach it from shuttle checklng pressure transmitters, I

30, is. preferably, though not of necessi pressure arm, and since the arms and their .be the same, a

.wise' unsupported. The rod 35 passes up finger and arm are connected to move in '30- secured to' the shuttle checking-pressure;

- und/er and lifts or, supports the weight of the pressure arm. When the lay is nearer its control of the shuttle checking-pressure transmitter, because the only essential with relation to the dagger and its cooperating parts is that when ashuttle is' properly boxed as the'lay beats up the loomwill not kn ck-off, but when a shuttle fails to box, and lvarp breakage is liable to occur by reason thereof, that the dagger 'will'be positioned to knock-off the'loom asthe lay heats up.- Obviously, this'efleot can be vari a5: ously secured and, broadly speaking, is'not' new, so that any appropriate devices may be employed" without departing from the true scope of the invention, aswi ll later appear.

Depending from the arm'27of each of th atyeach side of the loom, is a hanger 30, T r'ying a pin 31 and a roll 32.. This haI jr" made'integral with its arm 27. Pivota mounted on eachside of the m frame a 33 is an arm 34,-which for convenience of; identification may be herein referred to as a? operations on opposite sides of the loo'mmay description of one will be suflicient. The pressure arm 34- 'extends' forwardfrom its pivotal support 33, and atgits front 'end engages asupporting and adjusting rod 95" 3,5. In the form of the invention illustrated,

the rod 35 passes through aperforation' in the enlarged end 36 of the pressure arm, and f has a head 3'Z, 0n which the end of the pres sure arm may rest when said arm is other-' wardfthrough a bracket secured to the I loom fra me, and-isprovided with Sua ue I adjusting means for adjusting the position of the head 37 and Derforcethe height: at 5 which the-end of thefpressure arm 34: may be held for a purpose that will presently appear. In the form ofthe device illustrated I by Figs. 1 to 4 inclusive, the jadjustability of the head 37 secured by a nut 39 screw threaded upon the rod 35 and the top of'the bracket 38.

A spring 40 surrounds the-rod 35 to cushion the upward movement of the pressure arm 34k, said spring being preferably sustained'in position from the under side of the bracket 38, as indicated by Figs. 2, 3, and 4. The under surface of the arm 34 is disposed above the pin 31 androll 32 of the hanger I I I resting upon transmittenthe partsbeing so related 1; during a portion of the backward and f ward movement of the lay, the roll32 rides rear position, the roll'.32 sustains the weight of the pressure arm 34 at a point nearer the pivot 33 of said arm, with the result thattheweight or gravity of the pressure arm acting I upon the shuttlechecking-pressure trans is ice ' masses with greater leverage transmits to the binder 9 i s greater pressure- As the lay moves forward the roll travels along" the under surface of the pressure arm 34% there-- by constantly diminishing the leverage of" the pressure arm upon'the transmitter.

Bearing in mind that the shuttle will reach the box at the opposite side of the loom a time in the forward movement. of the lay dependent upon the power or energy or the pick, and that under a weak pick the shuttle will enter the opposite box later and under a relatively strong pick will enter erget-ic checking action.

the box earlier, it will be seen that the device described presents means that will act-upon the shuttle to check the same with a force proportional to the force of the pick or mo mentum of the shuttle. Should the shuttle be driven across the lay with great energy, it will reach the opposite box sooner and when the lay is nearer its rear position, but at such time the pressure arm through the shuttle checking-pressure transmitter is act- 'ing upon the binder with greater energy, so

that the highly energetic shuttle as it enters the box is met by a correspondingly highly energetic checking action of the binder with the result that it is stopped and boxed in proper position. On the other hand should the shuttle be driven across the lay with less energ Y or by a so called weak pick it will reach the opposite box more'ta-rdily and y when the lay is. farther forward, At such time, however, the pressure arnn is acting upon the binder through the shuttle check ing-pressure transmitter with less\pres sure,; so that the less energetic shuttle a'siit enters the box is met by a correspondinglyiless en- F r0111 the character of the invention thus far set forth, it will be noted that when the shuttle reaches the opposite box it shill be met by a shuttle checking force corresponding with the energy of movement 01"", 1110- mentum of the sh'utl-la -aaad whether this be relatively small pr great the shuttle will always enter the box to the desired extent and be properly positioned therein without rebound. it will also be noted that the force of the checking-action decreases gradually' as thelay moves from its'rear toward frond position and whether the shuttle enters tho box early 01' late, due to its varying energy of movement under varying conditions in the effective picking action, itwill be proprly received by and stopped in proper position in the shuttle box. .When the pressure arm rises under the lifting action of the shuttle checking-pressure transmitter any overthrow. or excessive rising movement of the pressure arm is overcome and cushioned 'by the spring on the rod 35. j

It becomes desirable at times to regulate the checking action-upon the shuttle, even though the present device insures proper boxing of the shuttle regardless of the efiectirecnergy of the pick. To effect this in looms heretofore it was necessary for the loom fixerto stop the loom and adjust the walls of the shuttle box, the picker strap, or other part, and then'st-art the loom and observe the efiectof his adjustment. present device, however, this is unnecessary because by adjusting the rod 35, which can be done while the loom is operating, the action of the shuttle check can be regulated to suit theruuning condition of the loom. The under surface'of the pressure arm preferably formed with a ridingportion 41 to engage andride'upon the roll 32 during that portion of thelay movement when the In the picking action. of the shuttle must be commenced and completed, so that as the lay moves back and during the time the shuttle is to start on its excursion, the actionof the pressure arm 15 at first least and then graduallylncreases until 1t reaches a maximum at the rear position of the lay. 'lhenas the lay;

starts forward the action. of the pressure arm gradually becomes less and less, until at the expiration of the time when the shuttle must have completed its excursion, the roll 32 passes from contact- With the pressure arm and the shuttle is held in the box by the light pressure of. the binder.

arm 27, hanger 30 and the light spring acting on the protector rod. Thus when the shuttle is finally boxed it is lightly held, so that in-a filling replenishing loom it maybe moved, it necessary, by the incoming car- This light pressure may be secured by the weight of the.

rier to properly receive the base of the bobbin between the usual holding jaws of is generic in character and not restricted.

thereto; and eliective operation of the invention will be secured though the parts and their relation may be variously changed or modified. F or instance, the lmoclooli device \might be otherwise operated or the binder might be otherwise arranged and disposed. It has not been deemed necessary to specitioally mention the various causes which influence or modify the picking action and I carries variations. in the moving energy or momentum of the-shuttle and its consequent arrival in the opposite box at different po sitions of lay movement and with dilieront degrees of energy, as these matters are well understood by those familiar with the art,

and the present invention acts to secure the ends stated irrespective of the cause of such variations.

Flhat is claimed is:

1. In a shuttle checking mechanism for looms, the combination of the lay and shuttle boxes, means for engaging the shuttle to check as itenters a shuttle box, means acting through said engaging means to ex ert upon the shuttle a maximum checking action when the lay/Is in extreme rear position and a progressively decreasing checking actionas the lay movesfrom said extreme rear to front position, and a device for varying the maximum and progressively decreasing action of. the. shuttle checking means during the operation of the loom.

-2. In a loom, the combination of the lay and shuttle boxes, a shuttle checking device carried by, the lay, a lever pivotally con- ,iiected to the loom frame and acting through saiddevice with varying leverage thereon in d fferent positions of the lay'to exert maximum checking energy when the lay is in back position and decreasing checking energy as the lay-moves forward.

- 3. In a loom, the combination of a lay and shuttle boxes, a shuttle checking device', means including a lever cooperating therewithand acting therethrough with a maximum;checking action when the lay is in back, position and to vary the checking energy of said device in a decreasing ratio corresponding to the picking energy of the shuttle as the "lay moves forward, and an. adjusting device adjustable during the operation of the loom for regulating the checking action of said means. Y

4. In a shuttle checking mechanism for looms, the combination of they lay and shuttls boxes, a shuttle checking device to check the shuttle as it enters a shuttle box, and a lever pivoted to the machine frame at a rear portion thereof and projecting toward the front of the loom, said lever acting through said device with varying leverage all-different positions of the layand exerting a maximum checking energy when the lay; is in back position and gradually de creasing said checkingv energy as the lay moves forward.

5.. In, a loom, the combination'of a lay, shuttle boxes having binders, means cotiperating therewith to exert a maximum,

checking energy upon the binders when the lay is in back position and to vary the checkingenergy of said binders in a decreasing ratio corresponding to the picking energy or momentum of the shuttle as the lay moves forward,-and an adjusting device at the front of the loom for regulating the checking action of said binders during the operation of the loom. I

6. In a loom, the combination of a lay and shuttle boxes, means for acting on theshuttle to check the same, a lever pivotally mounted on the loom frame. and adapted to act with varying leverage through said means from a maximum when the lay is in rear posit-ion, and means connected with the free end of said lever for regulating-its ac to the loom frame at a fixed point and adapted to bear on said part or hanger with maximum leverage when the lay is in back position and with decreasing leverage as the lay moves'forward.

8. In a -loom, the combination of a lay and shuttle box, a binder for said box to act upon the shuttle, a shuttle checking-pressure transmitter engaging said binder, a pressure arm pivoted to the loom frame back of the rearmost positioirr of the lay andacting' upon said transmitter with maximum pressure when the lay is in rearmost position and to vary the pressure of, the binder on the shuttle-in a decreasing ratio as the lay moves forward, and a device for. adjusting the action'of the pressure arm during the operation of the loom.

9. In a loom, the combination of a lay and shuttle box, a binder for said box, a shuttle checking-pressure transmitter mounted onthe lay and engaging the binder, and a pressure arm mounted on .the loom frame with its free end toward the front of the loom and acting on the transmitter to vary the pressure on .the binder in a decreasing ratio corresponding'to the picking energy of the shuttle as the lay moves for ward, and means connected with the free end of said pressure arm to vary its pressure upon the transmitter. Y

10. In a loom, the combination of a lay and shuttle boxes, means foracting on the shuttle to check the same, a lever pivoted to the loom frame and adapted to act upon the shuttle with varying leverage through said" means from a maximum with the lay in rear position, means'connected to the free end of said lever adjacent the front of the loom for adjusting the action of said lever during the operation of' the lofi'm.

In testimony whereof, we havesigned our CLARE H. DR'APER/ Jonas nonrnnor. I

' iitnessesq- WnnonLL WILLIAMS,

BEii'rHA I.- SNARE.

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