US1427638A - Filling clamping and parting means for looms - Google Patents

Description

A. E. HHOADES. v FILLING CLAMPING AND PARTING MEANS FOR LOOMS.

- APPLICATION FILED AUG.23, 192i.

nveflor. Alongo En Rhkmdes byMWArJQ-M Anya Patented Aug. 29, 1922.

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ALONZO E. RI-IOADES, 01? EOPEDALE, MASSACHUSETTS, ASSIGNOR TODRAPER CORPO- RATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OFiMAINE.

FILLING CLAMLPING AND PARTING MEANS FOR LOOIES.

Specification of Letters Patent. Patented Aug. 29, 1922.

Application filed August 23, 1921. Serial No. 494,526.

T 0 all whom it may concern:

Be it known that I, ALoNzo E. RHoAons, a citizen of the United States, resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Filling Clamping and Parting Means for Looms, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to automatic filling replenishing looms in which a mechanism is provided to clamp and part adjacent the end of the shuttle the filling extending from the selvage of the cloth being woven to the filling carrier about to be abandoned.

' The object of the invention is to provide a simple and efiicient means for effecting the closing'movement of this filling clamping and parting mechanism;

, The object of the invention is further to providesuch a closing means operable only upon the actuation of the transferring means by which a fresh filling carrier is transferred from'the magazine or supply to the lay so that there will be no danger of the running filling being severed until and unless an actual operation of the transferring means takes place.

The object of the invention is further to provide such a closing means as will render unnecessary extreme accuracy in the assem bly and adjustment of the filling clamping and parting mechanism and as will give or yield upon the occurrence of any abnormal resistance to the operation of the parts.

These and other objects and features of the invention will appear more fully from the accompanying description and drawings andwill be particularly pointed out in the claims.

In the drawings:

Fig. 1 is a view in vertical cross section I looking toward the inside of the transfer end of the loom with only such portions of the mechanism shown as is necessary to a disclosure of the present invention.

' Fig. 2 is a detail in plan and partially in horizontal cross section showing the parts attached to the loom in the preferred form of the invention.

The automatic filling replenishing loom illustrated is of the well known Northrop -type and as the construction and operation of thistype of loom is familiar to those skilled 1n the art, it is unnecessary to illustrate or describe anything more than those parts particularly concerned with the present invention. So, also, the filling clamping and parting means illustrated is of a Well known and familiar type and for the same reason needs no detailed illustration or descriptlon.

In this type of loom the frame, one side of which 1 is illustrated, supports at the front the usual breast beam 2 and upon this frame swings the lay 3. The shuttle 4 is picked back and forth across the lay and is shown boxed at the transfer side of the loom. Upon this side of the loom is mounted the hopper or magazine 5' which carries the supply of fresh filling carriers one of which is illustrated as a'bobbin6 ready for transfer into th shuttle boxed therebeneath. Transfer is effected in this type of 100111 by a'transferrer arm 7 having a hub 8 journaled on a stud 9 mounted in the stand of the magazine 5 by which it is secured to the breast beam 2.

When the running filling in the shuttle weaving the cloth has become substantially exhausted, suitable and familiar mechanism forming no part of the present invention indicates the substantial exhaustion of the filling and through suitable connections rocks a rod or shaft 11 extending along the front of the loom frame. This shaft has projecting rearwardly therefrom an arm '12 engaging at its rearward end a stud 13 on a swinging shuttle feeler lt'pivoted on the frame at 15. This shuttle feeler is arranged to swing across the path of the shuttle if it is properly boxed ready for transfer, but if the shuttle is not properly boxed, then the shuttle feeler strikes the shuttle and the completion of its swinging movement is prevented. Theshuttle feeler has a slotted projection 16 cooperating with the stud 17 on a dog 18 pivoted to an arm 19 depending from the transferrer arm hub 8.

It will therefore be seen that upon the call for filling replenishment, thestarter rod 11 being rocked, the arm 12' is raised, the shuttle feeler 14 is swung rearwardly and if the shuttle is properly boxed the dog 18 is elevated into the path of a hunter 20 on the lay. Consequently, as the lay beats up, the transferrer arm 7 is swung downwardly transferring the fresh filling carrier into the shuttle on the lay and ejecting from the shuttle the substantially exhausted filling carrier. If, however, the shuttle is not properly boxed, the shuttle feeler strikes against it and consequently the movement of the parts is not sufficient to bring the dog 18 op-' posite thebunter 20 and therefore no transfer takes place. All of this 1nechanisin,construction and operation, is familiar to those skilled in the art.

The filling'extending from the selvage to the filling carrier to be abandoned must be severed and it is customary to sever it adjacent the end of the shuttle and again close to. the selvage. For the former purpose a filling clamping and parting mechanism is provided and is commonly mounted on the shuttle feeler which affords a convenient support. In the form illustrated this filling clamping and parting mechanism consists simply of a pair of fixed blades 21 secured to the upper end of the shuttle feeler and a movable blade 22 mounted between the fixed blades on a pivot The movable blade 22 is shown'as swingingupwardly at its efiective end to clamp and part the filling and consequently it may be swung to operative position by a downward pressure on its forward end 24. A pin 25 mounted in the shuttle feeler and projecting through a hole 26 in the movable blade limits the extent of the The movclosing movement of the blade. able blade is also provided at its forward end with a transversely extending pin'27 which in cooperation with the switch cam 28 pivoted at 29 on the bracket arm 30 effects the opening movement of the blade in a generally familiar manner.

'In the normal position the partsstand in position indicated in full lines in Fig. 1, the

blades 21 andv22 holding the severed filling end of the filling carrier last abandoned: Upon the call for filling replenishment, the shuttle feeler swings rearwardly, as already described, and the pin 27 riding up the for ward side of the switch cam 28 swings'the movable blade 22 to open position and the filling end held thereby drops out. The parts then swingforwardly to the position indicated in dotted lines-if the shuttle is properly boxed and the filling extending to the filling carrier about to be abandoned enters between the blades; The movable blade mustnow be closed in order to clamp and part the filling end close to the shuttle and so' that this fillin end extending to the selvage' may becarried'forward out of the way and brought into the path of the usual temple thread cutter whereby it is severed closeto the selvage. This closing movement the present invention is efiiected by means connected with thetransferrer arm so that there can be no severance of the filling unlessthetrausferrinjg mechanism is actuated.

It will also be noted that the movable blade must not move in its closing movement beyond a certain point or there will be danger of breaking or shearing off the pin 25. It is notan easy matter to assemble all the parts of the shuttle feeler, filling clamping and parting"mechanism and to adjust these parts with respect to the lay so that accuracy of the closing movement of the filling clamping and parting means under all conditions can be maintained. One feature of the invention consists in providing a yielding or give-fivay'f-eature in the means for closing the filling clamping and parting means so that under all conditions the proper closing movement may be effected and then further movement taken up by the yielding or give-way feature. Thus, not only is it unnecessary to adjust the parts with absolute accuracy but also if for any reason, any abnormal resistance occurs to the movement of the parts, this yielding or give-way feature prevents damage or breakage.

The closing means provided for this'purpose-in the preferred form illustrated comprises a bracket 31 bolted at 32 to the hub 8 of the transferrer arm and extending around the'magazine stand 10. At its inner end this bracketisprovided with alaterally projecting stud 33' on which is journaled an actuator in the form of a hub 34; 'having'a rigid arm 35 projecting rearwa-rdlyand provided with a rounded end 36 standing. directly over the forward end 24 of the movable blade when the filling clamping and parting means is in its'rearward or operative position. A helical spring 37 surrounds the stud 33 in a recess in the hub 34 and is connected at one end to the bracket31 andat the other end to the hub 34 and acts normally to hold a lug 38 projecting rearwardly from the hub against a lug 39 projecting from the bracket 31. This spring is of sufiicient strength to cause the arm 35 to movewith the transferrer arm andeifect'the closing movement of the filling clamping and parting means but is so tensioned'as to'allow the arm 35 to yield and the lugs 38 and 39 to separate if there is any abnormal resistance to the operation of the fillingclam-ping and parting means or other parts or if the movable blade comes in contact with the pin 25 before the movement of the transferrer arm has been completed.

It will therefore be seen that when the filling clamping and parting means, has moved to its rearward or operative position as the lay completes its beat=up and the hunter 20 strikes the dog 18, the transferrer arm 7 is swung downwardly carrying with'it the bracket 31 and the arm 35 so that the end 36 of the' arm strikes the end 24: of the movable blade and swings it to closing positiemthe arm 35 thereafter yielding if necessary; Thus, -v the closing movement Of the filling clamping and parting means is accurately and surely effected and only when the transferring mechanism is actually operated.

After transfer has been effected, the shuttle feeler swings forwardly in the usual manner and the pin 27 sliding down the front face of the cam 28 raises that cam about its pivot 29 and passes beneath the cam which then drops behind it to the position shown in full lines, Thus, the clamped and parted filling end is carried back and held in position to be severed close to the selvage by the usual temple thread cutter.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. An automatic filling replenishing loom comprising a magazine to contain a supply of fresh filling-carriers, a pivotally mounted transferrer arm acting when actuated to swing downwardly and transfer a fresh filling carrier from the magazine to the lay, a shuttle feeler movable toward and from the lay and acting when moved to its rearward position to effect the actuation of the blade mounted on the bracket and means permitting the actuator arm to yield upwardly and turn on its pivotal mounting upon the occurrence of any abnormal resistance, the said actuator arm, upon the actuation of the transferrer arm, striking the movable blade and moving it to closed position.

2. An automatic filling replenishing loom comprising the construction defined in claim 1 in which the bracket and the actuator are provided with co-operating stop lugs and in which a spring connects the bracket and the actuator and acts to hold the said lugs in engagement but permits the upward yielding of the actuator with respect to the bracket.

In testimony whereof, I have signed my name to this specification.

ALONZO E. RHOADES.

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