US1530040A - Loom feeler - Google Patents

Description

March 17, 1925. 1,530,040

A. H. DUVAL Loom FEELER Filed Nov. 8, 1922 2 Sheets-Sheet l March 17, 1925. 1,530,040

A. H. DUVAL Loon FEELER Filed Nov. a, 1922 2 'sheets-sheet 2 Patented Mar. 17, 1925.

ARMAND HECTOR DUVAL, OF WALTHAM, `MASSCHUSETTS.

nooivr ritenne..

Application mea November s, 1922. semi No. 5995707.

To all ywhmn-fitfmag/ concern: Be it known that I, ARMAND Hnoron mt, a citizen ofthe United States, residing at Valtham, kin the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Loom 'Feelers, of which the following is a specification. l y

This invention relates to bobbin feeler mechanism for looms wherein it is desired to `reduce the wast-e on the running bobbin to the minimum. l

It is an object of the invention to produce awfeeler of this class that is simple, `eiiicient, andclieap to manufacture, and which is-composed, of very few part-s. Q y

A further `object Vof the tinvention is to so simplify the structure of the feeler, that feeler .brackets already in existence may be rapidly equipped therewith but slight expense-and very littleloss of time. i

Another .object of the invention 1s to produce a feeler of thisclass having a bobbin contact member which is `normally out of but, tending to assume `bobbin transferring position, but which `is restrained therefrom until cont-act actually takes place and the contact member has been moved forwardly.

lt is not known that a .feeler has everv beeny used .wherein i the bobbin contact y memi i ber is-normally,heldout of bobbin transferring position, but whiehis always under the influence of an actuator; spring, `to immediately move it into' such position at.the proper time and which is normally held outof bobbin transferring position byiadevice which causessaid-Inember to be Ireset after eachbobbin transfer.y

Nor is it known that 4a lfeeler yhasever been used having as small ,a `number of parts which can be attached to existing devicessuch asl` the feeler bracket and slide.

The-inventionfurther consists in certain novel'ifeatures of construction and ,arrangement of parts which will be fully `under-- stood from a. description of the ydrawings and the claims hereinafterj given.

Of the drawings: Figure l represents in top plan view a sufficient portion of a loom with the invention applied thereto to enable it to be understood.

Figure 2 an enlarged top plan View of y such a l the feeder shown in contact with a full bobbin. f

Figure 3 a Side elevation of the feeler shown in Figure 2.

Figure 4 a partial view of the feeler as shown in Figure 2 but showing the position it would assume when in contact with a nearly spent bobbin and `about to cause bobbin transfer.

Like characters represent like parts throughout the several figures of the drawings.

Referring to the drawings: The draw-` ings herewith show the invention as applied.`

to the well ,known Northrop loom wherein the battery l() is provided with a plurality of full ,bobbins l1 awaiting their turn to be transferred to the shuttle l2.

The transfer of a bobbin may be initiated by atilling feeler which in lsome instances is set to eject abobbin, and supply a fully one just before complete exhaustion of the ejected bobbin.

The present invention contemplates a filling feeler of such construction vthat af bobbin transfer is not effected by the lfeeler until ya portion at least of the running bobbin has beenexhausted to such extent that the barrel thereof is met by the feeler contact-member. y

It will alsorbe understood that it is intended to cagusefbobbin transfer just before complete exhaustion of the ruiming bobbin transfer as provision is made to bare the said ybarrel at the feeler contact point and cause the transfer while there is still a sufficient: 1quantity of yarn on the bobbin to complete at least one pick4 of the shuttle.

At the left side of the loom vandfast to the lock plate 13 is a feeler carrying bracket of box-like structure la andof al design welllnown in the art. I

Mounted in said bracket `14E is the usual slide member 15 which is normally held in the position shown in Figures l and 2 by thespring 1.6. n

Fivotally mounted to the said slide is a bobbin contact member 17 upon which the tension of the spring 18 is always exerted, tending to move said member into the position shown in Figure 4.

`In the normal position of the feeler7 however, the said member 17' is preventedv from assuming the said position by a combined vstop and resetting plate 19 which is adjustably secured to the feeler bracket 14 by one of the usual or existing bracket screws 2O.

The member 17 at the bobbin end may be provided with a toothed contact surface 21 for a purpose to be described and at its other end having an upstanding portion 22 adapted to abut the inclined edge 23 of the stop plate y19, which normally prevents the member from being swung to the position seen in Figure 4.

Slidably .mounted in a suitable guide 24 of the bracket 14 is an intermediate member 25 which is adapted to be met and actuated by the portion 221 at a certain time, and which in turn n'iay actuate a pivoted spring pressed lever 26 normally held in the position shown in Figure 1.

c The lever 26 in turn coacts with a cani surface, not shown, of a pivoted lever 27 the end 28 of which is adapted to be depressed upon feeler actuation, to lower the lever 29 or the end thereof into the path of a regularly moving part of the loom such as a dog 30 carried by the weft hammer 31.

In this instance the lever 29 is pivoted to a lever 32 and rests upon the end 28 of the lever 27, the said lever 32 being fast upon the starting shaft 33, a partial rotation of which, as is well known, causes the transferring means of the battery to be positioned for actuation.

As the invention does not include the devices which are intermediate the feeler and the battery or magazine, it is obvious that any suitable combination of devices may be used which may derive their movement from the feeler.

In order to permit the bobbin contact member 17 of the feeler to be engaged by the running bobbin B, the shuttle box wall 35 and shuttle wall are provided with entrance slots 36, and 37, respectively.

During the regular running of the loom with a full bobbin in the shuttle, on each forward beat of the lay when the shuttle is in the left hand box, the feeler will enter the slots 36 and 37 and the member 17 will meet the yarn of the bobbin and the teeth 21 will sink into it.

The lay will continue its forward movement forcing the slide 15, throughits connection with the said member 17, against the spring 16, and the portion 22 will be caused to travel forwardly while maintaining its relative position with the slide shown in Figure 2.

At this time and in fact at all times the spring 18 is exerting its power to swing the member 17 into the Aposition shown in Figure 4, but as before stated the teeth 21 are now engaged with the yarn on the bobbin on the beat up of the lay and prevent the swinging movement.

If, however, the yarn on the bobbin has been exhausted to a point wherein the bare barrel of the bobbin is exposed as shown in Figure 4, the 'teeth will then find nothing to grip and the spring will exert its power, and as the slide 15 is forced forwardly the portion 22 instead of moving in a straight line as before, will be gradually swung toward the member 25', or as rapidly as the speed of the lay and the incline 23 permits, until it is in position to strike said member 25 forcing it forward, and through the devices previously explained cause a bobbin transfer. f

lVhen the transfer has been completed and the lay moves rearwardly the slide 15 will follow it to the extent of its own movement, under the action of the spring 16, and in so doing the portion 22 will be caused to travel along the incline 23 toward the free end thereof which action resets the feeler member 17 to its normal position, as seen in Figures 1 and 2. y

Having described the invention I claim:

A loom fee-ler of the class described, comprising existing elements such as a feeler bracket and a feeler carrier slide mounted in said bracket and normally under the control of a spring in said bracket, all as used on existing looms, in combination with a bobbin contact memberpivoted midway of its length on said carrier slide and having f its rear end extending forward end upwardly turned to engage a cam plate; a spring on said slide normally holdingsaid contact member and said plate in engagement;a cam plateadjustably secured to said bracket by an existing screw, said plate projecting rearwardly and laterally to overlie said slide and forward portion of said contact member and providing al cam surface to co-operate with the upwardly turned end of said contact to normally retain said member inv bobbin feelin@ position and to yreset said member after beyond it, and its bolpbbin transfer; aI second slide member" overlying said carrier slide mounted in an existing guide way of said bracket and adapted to be actuated by the upturned end ofsaid Contact member; and means coacting with said second slide member to effect bobbin transfer.

ARMAND HECTOR DUVAL.

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