US1636899A

US1636899A - Feeler mechanism for looms

Info

Publication number: US1636899A
Application number: US157152A
Authority: US
Inventors: Edward A Cunniff
Original assignee: Draper Corp
Current assignee: Draper Corp
Priority date: 1926-12-27
Filing date: 1926-12-27
Publication date: 1927-07-26
Anticipated expiration: 1944-07-26

Description

Jul 26 1927.

y E. A. CUNNIFF FEELER MECHANISM FOR LOOMS Filed Dec. 27. 1926 2 Sheets-Sheet 1 k 2 9 T, 1 4 an. M

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ATTdRA/EY July 26, '1927.

A. CUNNIF F FEELER MECHANISM FOR LOOMS Filed De0. 27. 1926 2 Sheets-Sheet 2 Patented July 26, 1927.

UNITED STATES PATENT OFFICE.

EDW'ARD A. CUNNIFF, OF WALTHAM, INTASSAGHUSETTS, ASSIG-NOR TO DRAPER COR- ]?OR-ATION, 0F HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

"' FEELER MECHANISM FOR LOOIVIS.

Application filed December 27, 1926. Serial No. 157,152.

This invention relates to filling replenishing looms, and more particularly to the feeler mechanism now usually employed in such looms for changing the operative condition of the loom on the occurrence of substantial exhaustion of filling.

lThere the feeler mechanism is located at the replenisiiing side of the loom, it has heretofore been proposed to employed two feeler members, one of which is fixed to a slideand the other of which is pivotally mounted thereon, and in such cases the fixed feeler member has been so located with respect to the filling carrier and the filling thereon that it would engage the filling on each detecting beat and sink into the filling to permit the pivoted feeler member to enthe filling and be held from pivotal movement thereby on each detecting beat until substantial exhaustion thereof. In such cases the fixed feelermember has been located nearer the tip of the bobbin than the pivoted feeler member, with the result that the recurring contacts of the fixed feeler member with the filling has resulted in in ury to the filling. This is particularly observable where the filling'is of fine count or in the form of silk or artificial sill: or the like, and the marks left upon the filling by the fixed feeler member have been the cause of producing a. different surface to the fabric when the yarn which has been engaged by the fixed feeler member has been woven into the cloth.

()ne of the objects of the present invention is to avoid this objectionable condition where the feeler mechanism'is mounted at the re plenishing side of the loom and to provide the fixed and pivoted feeler member support-' ed by the feeler slide in such corelated relation to the filling carrier or bobbin in the shuttle that the fixed feeler member will be held from engagement with the filling on detecting beats by the pivoted feeler member until substantial exhaustion of filling, whereupon. the fixed feeler member will engage the filling carrier without having pre viously' engaged the filling, with the injurious efiects resulting therefrom.

in ace rdance with the present invention, the fixed feeler member is carried by the feeler slide in a position opposite to the conical winds adjacent the head or" the filling carrier, and the pivoted feeler member is as sociated therewith nearer the tip of the filling carrier and for movement towards the tip of the carrier when the filling is substantially exhausted. Under these conditions, only the filling engaging end of the pivoted feeler member will contact with the filling on each detecting heat, so that the injury heretofore resulting by the penetration of the fixed feeler member into the filling is avoided.

, The invention and new combination of parts and novel, features thereof will best be made clear from the following descrip tion and the accompanying drawings of one good form thereof.

In the drawings:

Fig. 1 is a sectional elevation of portions of a loom at-the replenishing side, provided with the present invention;

Fig. 2 is a plan view with parts broken away showing the relation of .parts during detecting beats with a working supply of filling in the shuttle;

'Fig. Sis a. plan view with some of the parts broken away and others omitted, showing more particularly the relation of the two feeler members when the filling is substantially exhausted on a detecting beat; and

Fig. l is a view'similar to that of Fig. 3, showing the pivoted feeler member as having been displaced towards the tip of the bobbin on detecting beat with the filling substantially exhausted.

The loom frame has mounted thereon'the stand 1 from which extends the stud 2 on whichthetransferrer 3 is mounted, it being understood that upon operation-of the trans ferrcr, a freslrfilling carrier will be taken from a suitable hopper, as usual in this class of looms, and transferred to the shuttle. It has not been'deemed necessary herein to show the hopper anddetails of the mechanism for'operating the transferrer on substantial exhaustion of filling, because such parts are now well known and the details thereof form no essentia part of the pres ent invention.

The transferrer 3 is normally under the influence of a spring 5 serving to hold it in its upper or inoperative position, and extending downwardly from the transferrer is the arm 6 to which may be pivoted at 7 theusual Lil dog 8 adapted to be engaged by a bunter 9 on the lay 10 upon indication of substantial exhaustion of filling, to thereby operate the transferrer and effect the transfer of a fresh filling carrier to the shuttle. Tie lay 10 has the usual opening 11 for the passage of the discharged filling carrier, and the shuttle 12 is similarly provided with an opening 13 for like purpose. The shuttle, also, is provided with the usual bobbin holdin jaws 14: for the support of the filling carrier or bobbin 15, and the front wall of the shuttle has an opening 16 which registers with a similar opening in the front wall of the shuttle box when the shuttle is properly positioned in the replenishing box. These parts, also, may be of usual construction as now well understood in the art. 7

Mounted upon the loom frame or a bracket secured thereto is the feeler stand 1'7, shown in the present instance as being secured in place by a bolt 18 and adjustable at its rear end portion by an adjusting bolt 19 acting in opposition to the spring 20; These parts may likewise be of usual construction.

Mounted on the loom frame at the replenishing side and adjacent the feeler stand is a bracket 21 having a slot 22 in which the actuator is movable, and the actuator 23 is pivotally supported at 24 by a movable member, as usual in this class of machines, to call for replenishment of filling when the actuator movement is arrested, but since the details of this mechanism form'no essential partof the present invention, further description thereof appears unnecessary, the essentials being that-when the actuator 23 is arrested on a detecting beat, as will herein after appear, replenishment of filling is ini tiated. li'founted in

suitable bearings

25 and 26 is the shaft 27 having the upwardly extending .arm 28 secured thereto and connected with a rod 29, the rear end portion of which adapted to project across the opening 22 in the bracket 21 in the path of the actuator when detection of substantial exhaustion of filling is made, as will later appear, and the shaft 2? is normally under the influence of a spring 30 which projects the rod 29 nornially into its rearward position in the path of the actuator.

lvlounted upon the feeler stand 17 is the feeler slide 31 normally under the influence of a spring 32 for yieldingly forcing the slide rearwardly. The spring 32 is shown as coiled about the rod 33 and bears atits rear end upon the projection 34: extending from the feeler slide, while its front end portion rests against the front wall of the feeler stand, as at 35, or, it may be, against the front end of the covering cap 36, as indicated in Figs. 3 and 4. To limit the rearward movement of the slide 31 a suitable.

stop is provided which, in the present in stance, consists of a shoulder 37 adapted to be engaged by a projection 38 extending from the slide. The cap or cover 36 may be secured to the feeler stand by suitable screws or bolts 39.

Carried by the feeler slide 31 is the fixed feeler member 4:0, the rearwardly extending end ll of which is positioned opposite the conicalwinds 422 on the filling carrier or bobbin adjacent the head portion thereof, and, as indicated in Fig. 2, such conical winds of fillingare of increasing diameter from the head portion of the bobbin or filling carrier to the point where they merge into the regular wind.

Pivotally mounted on the feeler slide 31 at the point a3 is the pivoted feeler member 44-, which, as shown, has an ar ii 45 extending laterally of the slide 31 and is connected at 4:6 to a rod 47, the front end portion of which pivotally connected at as to the arm as, s cured to and rising from the shaft 27, the result being that the pivoted feeler member is normally under the influence of the spring 30 tending to swing the pivoted feeler member on its pivotal connection with the feeler slide and limited in such tendency by engage ment of the end of the rod 29 with the rear wall of the slot 22 in the bracket 21.

The pivoted feeler a l has the extended toothed feeling end 50, as indicated more clearly in Figs. 3 and 4t, and such toothed end in y j'ireferably be formed of fibroid or other material non-injurious to the filling, and since the rear end of the pivoted feeler is of considerable length, the recurring contacts of the filling with the pivoted feeler will not injuriously affect the filling, as would the end of the fixed feeler by penetration there-of.

As indicated, the end ll of the fixed feeler member i0 is extended rearwardly beyond the end of the pivoted feeler member, but since the fixed feeler member is supported by the feeler slide opposite the conical winds at the base of the filling carrier or bobbin, the end of the fixed feeler member will not contact with the filling during detecting beats with working supply of filling in the shuttle, whereas, the end of the pivoted feeler member will engage the filling and effect frontward moven'ient of the slide on eachdetecting beat until substantial exhaustion of filling, whereupon, the end of the fixed feeler member at) will engage the filling carrier or bobbin and effect frontward movement of the slide with-out engagement of the end of the pivoted feeler member with the filling carrier or bobbin, thereby freeing the pivoted feeler member for its swinging movement towards the tip of the bobbin.

As the feeler slide is moved frontwardly by the fixed feeler member ll) when filling is substantially exhausted on a detecting beat, as indicated in Figs. 3 and l, the

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spring 30 will act through the rod 47 to swing the pivoted feeler member and cause the rod 29 to be interposed into the path of the actuator 23, to thereby call for replenishment of filling.

During normal weaving operations with a working supply of filling in the shuttle, the filling will be engaged by the end of the pivoted feeler member and be held from swinging movement by such engagement during the beatup movement of the lay, while the fixed feeler member will not engage the filling or filling carrier. Under these conditions, as the pivoted feeler member thus moves the feeler slide frontwardly, the rod 29 will be withdrawn from the path of the actuator 23 and the loom will continue to operate without replenishment. lVhen, however, the filling has become substantially exhausted, as indicated in Figs. 3 and'el, the end of the fixed feeler member will engage the filling carrier, thus relieving the pivoted feeler member from engagement therewith and replenishmentwill be called as hereinbefore described.

lVhere the feeler mechanism is located at the replenishing side of the loom, it is necessary to withdraw the feelers from the shuttle during replenishment, in order that a fresh filling carrier may be transferred to the shuttle, and to this end the pin connecting the arm 6 of the transferrer and the dog 8 is extended laterally, as indicated more clearly in Figs. 3 and 4;, and when the transferrer is operated, the pin 7 will engage the projection 51 connected to the feeler slide 31 to thereby withdraw the feelers frontwardly out of the shuttle.

It may be desirable at times to adjust the pivotal connection of the arm i7 with the pivoted feeler 44, and as one means of thus effecting the adjustment, the laterally extending arm 45 of the feeler is provided with two or more holes 52 which may be engaged by the connection 46 as circumstances dictate.

From the construction described it will be apparent that the fixed feeler member does not engage the filling or filling carrier on detecting beats when a working supply of filling is in the shuttle, and only engages the filling carrier when the filling is substantially exhausted, thereby obviating any injury to the filling during the weaving operation, even though the filling be of fine count, silk, or rayon, or the like.

Inasmuch as the diameter of filling carriers may vary and consequently the frontward movement of the slide by the fixed feeler member be altered, the rod d7 connecting the pivoted feeler with the shaft 27, which has a predetermined rotative movement by the rod 29 striking the rear wall of the slot 22 in the stand 21, should be capable of a lengthwise spring action, and this is effected in the present instance of the invention by the bend 53 formed in the rod 47.

What is claimed is:

1. In a filling replenishing loom, the coin bination of a feeler stand supported from the loom frame at the replenishing side thereof, a feeler slide mounted on the feeler stand, a pivoted feeler member mounted on the feeler slide for side slipping movement towards the tip of the filling carrier and held from such movement by engagement with the filling on each detecting beat until substantial exhaustion thereof, a fixed feeler member carried by the feeler slide and extending rearwardly beyond the end of the pivoted feeler member opposite the conical winds of filling and held from engagement with the filling 011 detecting beats by the pivoted feeler member until substantial exhaustion of filling and thereupon adapted to be engaged by a surface within the shuttle on a detecting beat, means controlled by the pivoted feeler member for initiating replenishment of filling and means for withdrawing the feelers frontwardly on replenishment of filling.

2. In a filling replenishing loom, the combination of a feeler slide mounted at the replenishing side of the loom, a pivoted feeler member mounted on the slide for swinging movement towards the tip of the filling carrier and held from such movement by engagen'ient with the filling on each detecting beat until substantial exhaust-ion thereof, a fixed feeler member carried by the slide and having its end extended rearwardly beyond the end of the pivoted feeler member opposite the conical winds of filling adjacent the head of the filling carrier and held from engagement with the filling on detecting beats by the pivoted feeler member until the occurrence of substantial exhaustion of filling and thereupon adapted to engage the filling carrier, means controlled by the pivoted feeler member to initiate replenishment of filling, and means for withdrawing the feeler members frontwardly during replenishment of filling.

3. In a filling replenishing loom, the combination of a shuttle equipped with a filling carrier having its barrel provided with conical winds of filling enlarging in diameter from the head of the filling carrier, a feeler slide mounted at the replenishing side of the loom, a pivoted feeler member mounted on the slide for swinging movement towards the tip of the filling carrier and held from such movement by engagement with the filling on each detecting beat until substantial exhaustion thereof, a fixed feeler member carried by the slide in position opposite the conical winds adjacent the head of the filling carrier and held from engagement with the filling and filling carrier on detecting beats by the pivoted feeler memher until the'oecurrence of substantial exhaustion of filling, means controlled by the pivoted feeler member for initiating replenishment ot filling, and means for withdrawing the teeler members frontwardly during replenishment of filling.

4:. In a filling replenishing loom, the combination of a shuttle equipped with a filling carrier having its barrel provided with conical winds of filling enlarging in cliameter from the head of the filling carrier, a feeler slide mounted at the replenishing side of the loom, a pivoted feeler member mounted on the slide for swinging move ment to 'a ds the tip of the'filling carrier and held front. such moven'ient by engagement with the filling on each dcteotii'ie; beat until substantial exhaustion thereo t, a fixed ieeler member carried by the slide with its rear end extended beyond the filling engaging end of the pivoted teeler in position op posite the conical winds adjacent the head of the filling carrier and held from engage ment with the filling and filling carrier on detecting beats by the pivoted 'teeler member until the occurrence of substantial ex haustion of filling, means controlled by the pivoted teeler member for initiating replenishment 0t filling, and means for withdrawingthe feeler members irontwardly during .eplenislnnent 0t filling.

5. In a filling replenishing loom. the ?o*=.nbination of shuttle equipped with a filling carrier having conical winds ot filling enlarging in diameter from the head of the filling carrier, a teeler stand having a teeler slide, a pivoted iteeler member mounted on the slide to swing towards the tip of the filling carrier and held from suchmovement by engagen'ient with the filling oneach detecting beat until substantial exhaustion thereof, a fined :leeler member fixed to the slide in position opposite the conical wincs of filling adjacent the head oi the filling carrier and held from eng g-ement with the filling and filling carrier on detecting beats by the pivoted teeler member until the occurrence of substantial exhaustion of filling and thereupon engaging the filling carrier, and means controlled by the pivoted tifeele member for efi'eeting replenishment of filling on detection of substantial exhaustion thereof.

6. In a filling; replenishing loom, the combination of a shuttle equipped with a filling carrier having; conical winds of fillingenlarging in diamoter from the head of the filling carrier, at feeler stand having a teeler slide, a pivoted teeler member mounted on the slide to swing towards the tip of the filling carrier and held from such movement by engagement with the filling on each do tecting beat until substantial exhaustion thereof, a spring tending to swi the pivoted teeler on the slide as it is moved frontwardly, a fixed teeler member fixed to the slide in position opposite the conical winds of filling adjacent the head ot the filling carrier and held from engagement with the filling and filling carrier on detecting beats by the pivoted teeler member until the occurrence of substantial exhaustion of filling and thereupon engaging the filling 'i'ierv and means controlled by the pivoted eelnr member for effecting replenishn'ient oi tilling on detection of SlllJStlUltltLl exhaustion thereof.

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

EDVJARD A. GUN.