US1620601A - Loom attachment - Google Patents

Description

March 8, 1927. 1,620,601-

A. GAGNON LOOM ATTACHMENT Filed June 5, 1926 2 Sheets-Sheet 1 attozmaq March 8, 1927. 1,620.6o1

A. GAGNON LQOM ATTACHMENT Fiied June 5, 1926 2 Sheets-Sheet 2 Patented Mar. 8, 1927.

UNITET: STATES ARCHIE GAGNON, OF PAWTUCKET, RHODE T r rinks;

ISLAND, ASSIGNOR 0F ONE- HALF TO CHARLES GREENHALGH, O]? PA.VJT'UCI IE1, RHODE ISLAND.

LOOM ATTACHMENT.

Application filed June 3,

contact with the bobbin, due to the swing of the lay, upon the yarn or filling reaching a predetermined diameter effects operation ofa replenishing device to place either a newshuttle with a full bobbin, or a full bobbin, in the shuttle'of the loom.

The primary object of the invention 1s to provide a device of this character which has improved means for preventing constant contact of the feeler with the bobbin throughout the motion of the lay, or for bringing the feeler into periodic engagement with the yarn, and more specially for per mitting the feelerto contactwith the yarn but one in thirty picks until the yarn reaches a predetermined diameter just prior to'its depletion.

A further object'of the invention 1s to providean attachment of the type set forth, which is of simple, economical and compact construction, positive in operation and capable of being easily and quickly applied to the .loom.

In the drawings Fig. 1 is a perspective view or" the invention;

Fig. 2 is a detail view of the takeup worm gear showing the invention as assoclated therewith.

Figs. 3, 4c, 5, are detail views showing the feeler and the bobbin yarn during the variousstages of depletion of the yarn; and l Fig. 6, is a detail view of the bevelled end of the operating rod for the feeler.

In proceeding in accordance with the pres ent invention a dog 1 is secured to a side face of the take-upwor1n gear 2 so as to project at one end beyond the worm teeth. A horizontal bracket 3 is suitably attached to'the lower part of the loom and a horizontal bracket 41- is likewise attached to the top part of the loom. The brackets are perforated to slidably support a vertical rod 5, the latter having its lower-portion otl'set at 5 and havingits lower end fiattened and bent at substantially right angles to form a finger 6 the free end of which is in the path of movement of the dog 1. A collar 7 is adjustably mounted on the offset part 5 of the rod and is engaged by one 1926; Serial no. 112,423.

end of the coil spring 8 which latter surrounds theoffset part 5 of therod-,the other end of the spring seating on the lower bracket 3. The upper free end of the rod 5 is tapered or beveled as indicated at 9." Thefeeler F has a notch lO formed in aside thereofin which the beveled end 9 of therod 5 is received, the notch forming a transversely disposed wall or abutment with i which the beveled end 9 of the rod 5 en gages.

In operation and as heretofore: practised in the art, the take-up worm 'gear'Q'makes one revolution in'approximately thirty picks of the loom, that-is to say thefeeler F contacts with the yarn on the bobbin approxi-* mately thirty times to one complete revolution of the gear. This has been found to be detrimental in that such contact injures the yarn on the bobbin, and to overcome this objection it will .be seen that by the present invention, the dog 1 uponthegear 2 engaging the finger 6 of the rod 5, depresses the latter thereby releasing the feeler. The feelerthen contacts with the practically full bobbin and isimmediately returned to position out of engagement with the yarn upon the rod beingv released by reason of the rotation of the gear 2, whereby the upper end of the'rod enters the-notch 10 in the side of the ieeler and is moved by the bevelled end S ot the rod out of contact with the yarn,-until the rotating movement of gear. 2again brings the dog 1 into engage ment with the finger 6 to release the feeler, whereupon the latter will repeat its above described action until the diameter of the yarn on the bobbin has decreased to that shown in Fig. 5. Thereupon the teeler contacts with the top of the rod and slides thereover, and maintainingits engagement with the yarn until the diameter of the latter reaches the point wherethe change motion is brought into'action and either a new shuttle with a full bobbin or a new bobbin to the shuttle in the loom is supplied.

From the foregoing it will be seen that the invention, in brief thus brings the feeler into periodic or intermittent engagement with the yarn and more specifically once only during a complete revolution of the take-up gear, as distinguished from the prior art in which the teeler contacts with the yarn approximatelythirty times to each revolution of such gear. The present inven times until the yarn approaches depletion.

This insures the feeler being maintained out of contact wlth the yarn for twenty nine picks. After the change motion 18 brought into plan and a full bobbin is inserted in the loom, the increased diameter of the yarn will force the teeler away from the shuttle to an extent sufficient for the end 9 of the rod to engage the notch 10 of the feeler and thereby hold the latter out of contact with the yarn.

What "I claim as new and desire to secure by Letters Patent is:

1. A loom attachment including a :teeler having a side notch, a vertically sliding spring pressed rod having a rigid vertically disposed bevelled upper end and an out wardly extending finger at its lower end, the bevelled upper endbeing formed to engage in said side notch of the teeler, spring means for upwardly tensioning the rod, and a dog formed for securement to the take-up worm gear and having an end engageable with the finger to depress the rod thereby to release the feeler upon each revolution of the gear, the bevelled end of the rod being formed to cam against and move the feeler out of engagement with the yarn upon upward movement of the rod.

2. In combination with a ieeler havin a transversely disposed wall, a bodily movzlole member having a rigid vertically disposed cam-forming portion engageable with the said wall to move the feeler away from the bobbin upon upward movement of the member, means to mount the member so that its cam-forming portion is movable to underlie the feeler, and means to periodically actuate the member to permit the t'eeler to move toward the bobbin, said wall being disposed so that as the yarn approaches depletion, the wall will be out of alinement with the cam-forming portion and the feeler will slide over the latter and be unaffected there- 3. In combination with a notched feeler and the take up gear of a loom, spring pressed bodily'depressible means having a rigid vertically disposed tapered part engageable with the wall defining the notch to cam against side wall and move the feeler away from the yarn upon each engagement there with until the latter reaches a predetermined diameter, said tapered part being movable to lie beneath the feeler, and said notch being positioned so that after the yarn reaches said predetermined diameter the notch will be out or" register with said tapered part whereby the feeler can move over said part and engage the yarn so as to bring the change motion into play upon depletion of the yarn, and means actuated by the gear to operate the depressible means upon each revolution of the gear.

4. In combination with a feeler having a transversely disposed wall, a slidable spring pressed rod having a. rigid vertically disposed cam-torming portion at its upper end engageable with the said wall to move the ieeler away from the bobbin upon upward movement or" the rod, and means to periodically actuate the rod to disengage same from and to permit the feeler to move toward the bobbin, said wall being disposed so that as the yarn approaches depletion, the wall will be out of alinement with the cam-forming portion and the spring will hold the said portion engaged with the under face of the feeler and will allow the latter to slide thereover. I

5. In combination with a feeler having an abutment, a Vertically and bodily movable member having a rigid cam part engageable with the abutment to move the feeler away from the bobbin upon upward movement of the member, said cam part being movable to lie beneath the teeler, means to periodically actuate the member to release same thereby to permit the feeler to move toward the bobbin, said abutment being disposed so as to be out of alinement with said cam' part as the bobbin approaches depletion whereby to permit the ieeler to have con tinuous engagement with the bobbin, and means to move the member upwardly.

6. In combination with a feeler having an abutment, a bodily movable tensioned member having a rigid cam part engageable with the abutment to move the feeler away from the bobbin upon engagement of the cam part with the abutment, and means to elfect periodic bodily movement of the member to release the cam part thereof from the abutment thereby to permit the teeler to move toward the bobbin, said abutment being disposed so as to be out o1 alinement with said cam part as the bobbin approaches the feeler to permit the feeler to have continuous engagement with the bobbin.

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

ARCHIE GAGNON.

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