US1747997A - Feeler mechanism for looms - Google Patents

Description

Feb. 18, 1930.; w SIMPSON 1,747,997

7 FEELER MECHANISM FOR LOOMS Filed May 14, 1929 MWRW ATTORNEY Patented Feb. 18, 1930 1 UNITED STATES PATENT OFFICE JESSE W. SIMPSON, OF ANDERSON, SOUTH CAROLINA, ASSIGNOR TO DRAPER CORPORA- TION, OF I-IOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE FEELER MECHANISM non LOOMS Application filed May 14, 1929. Serial No. 362,918.

This invention relates to feeler mechanisms for looms whereby the operative condition of the loom is changed when the'filling becomes substantially exhausted'in the active shuttle, and is more particularly directed to feeler mechanisms of the side slipping ype. In'the side slipping type of feeler mechanism the feeler is caused to move in a direction longitudinally of the shuttle when the filling is substantially exhausted on a detecting beat and such movement may be effected either by the frontward pressure of a surface within the shuttle, or by means which acts upon the feeler independently of the frontward pressure to cause its side slipping movement. I

The amount of waste that remains upon the carrier or bobbin when it is ejected from to the feeler its rearward movement and lateral movement into feeling position and upon frontward movement of the feeler on a detecting beat, to exert a stress tending to move the feeler in a direction longitudinally of the shuttle. t More specifically, the invention provides a pivotally mounted feeler carrier with relationto which the feeler may be moved longitudinally .on each detecting beat, and connected to the feeler is a spring which acts upon the feeler at a point back of the pivotal mounting of the feeler carrier when the feeler is in rearward position and in, front of the pivotalmounting of the feeler carrier when the feeler is-moved frontwardly on a detecting beat. a

r The invention and novel features thereof will best be made clear from the following vdescription and drawings of one good practical form thereof.v I

. In the drawings v Fig. 1 is a plan view showing a feeler mechanism containing the present invention;

' Fig. 2 is a similar view showing the relation of parts when the feeler is displaced frontwardly on the feeler carrier by a working supply of filling in the shuttle, and

Fig. 3 is a similar view showing the feeler as detecting substantial exhaustion of filling in the shuttle and the relation of parts at this time.

The invention has special advantagein a filling replenishment loom, but the replenishing mechanism and its details are not herein shown and described because they are now common in the art, and well understood.

In the illustrated embodiment of the invention, a feeler stand 1 is provided which may be secured to the front part of the loom as usual by means of a bolt 2 passing through an opening 3 in the feeler stand.

Pivotally mounted upon the feeler stand at 4 is the feeler carrier 5 having a front bearing 6 and a rear bearing 7 through which extends the feeler 8 and with reference to which the feeler may have movement towards and from the front of the loom on detecting beats.

In the present instance of the invention, and with due regard to the delicacy desired for a feeler mechanism, thefeeler is formed of wire and is mounted on the pivotal feeler carrier to extend backwardly into feeling position atsubstantially right angles to the direction of lay movement. The rear end portion of the feeler is provided with a filling feeler tooth 9 which is preferably formed by cutting the wire feeler in a diagonal direction through the entire dimensions of the feeler. So far as certain aspects of the present invention are concerned, however, the filling engaging end of the feeler may be otherwise formed.

In accordancewith the present invention end of the spring being connected to the feeler between the front and rear bearings of the feeler carrier.

As one convenient means for securing the front end portion of the spring 12 to the feeler the latter is provided with a projection or bend 13 between the front and rear bearings of the feeler carrier and the end M of the spring is secured to such bend as shown.

From the construction thus far described it will be apparent that the spring 12 will act upon the feeler back of the pivotal connection of the feeler carrier with the feeler stand when the feeler is in its rearward feeling position, as indicated in 1. I/Vhen, however, the feeler is moved frontwardly by a working supply of fillingon a detecting beat the spring 12 will be elongated as its front connection with the feeler is moved towards the front of the loom and frontward of the pivotal connection 4 of the feeler carrier with the feeler stand. with the result that at this time, as indicated in Fig. 2, the spring 12 acting upon the feeler in a rearwardly inclined direction will tend to impart to the feeler carrier a tendency to swing about its pivotal mounting. but, owning to the engagement of the toothed end of the feelerrwith the working supply of filling, the feeler carrier will be held from turning movement upon its pivotal support, notwithstanding the fact that the spring action at this time is frontward of such pivotal mounting.

When the filling has become substantially exhausted on a detecting beat, and the feeler is moved frontwardly by the'oncominglay, the parts will take the position indicated in Fig. 3, wherein the line of action of the spring laterally and rearwardly is in front of the pivotal support of the feeler carrier, thereby exerting through the feeler a turning movement of the feeler carrier and side slipping movement to the feeler itself.

The turning movement of the feeler carrier as indicated in Fig. 3 is utilized to initiate replenishment of filling and to this end the feeler carrier has connectedthereto at p 15 the transmitter 16 which will be moved longitudinally by the feeler carrier when the spring action upon the feeler frontward of the pivotal support of the carrier turns the latter to efiect s ide. slipping movement of the feeler.

The feeler stand 1 has a stop 17 at its front portion which is engaged by a complemental stop 18 formed on the feeler carrier when the latter is in its normal position as indicated in Fig. 2, therebylimiting the swinging 1novement of the feeler carrier when the action of i the spring 12 is exerted on the feeler rearward of the pivotal support 4 of the feeler carrier.

In order to limit the swinging movement of the feeler carrier to call for a change of filling another stop 19is formed on the feeler stand and is adapted to be engaged by a complemental stop, 20 at the rear part of the, feeler carrier, as indicated in Fig. 3, to thereby limittheswinging movement of the feeler carrier by the spring 12 whenit acts upon the feeler frontward of the pivotal support 4 of the feeler carrier, and filling is substan V the feeler tends to impart turning movement to the feeler carrier to effect side slipping movement of the feeler when the filling is substantially exhausted on a detectingbeat.

In Fig. 2the filling carrier or bobbin 21 is indicated as provided with a working supply of filling 22, while in Fig. 3, the filling carrier or bobbin 21 has had the filling sub stantially exhausted therefrom.

What is claimed is v I I 1. In a feeler mechanism for looms, the combination of apivotally mounted feeler carrier, a feeler mountedon the pivoted carrier for longitudinal movement relative thereto, a spring having one end secured at the rear of the feeler stand and its other end connected to the feeler at a point which is back of the carrier pivot when the feeler v in rearward feeling position tothereby turn. the carrier and'feelerin one direction and in front of the carrier pivot when'the feeler is moved frontwardly on a detecting beat to thereby exert a tendency for the feeler car rier and feeler to turn in an opposite direction. I 2. In a feelermechanism for looms, the combination of a pivotally mounted feeler carrier, a feeler mounted on the feeler can rier for longitudinal movement, a spring acting upon the feeler in a rearwardly inclined direction back of the pivotal mountingof the feeler carrier when the feeler is in rearward feeling position and in front of the pivotal mounting of the feeler carrier when the feeler is moved frontwardly on a detecting beat.

3. In a feelermechanism for looms, the combination of a pivotally mounted feeler carrier, a feeler mounted on the feeler carrier for longitudinal movement, a spring acting upon the feeler in a rearwardly inclined direction back of the pivotal mounting of the feeler carrier when the feeler is in rearward feeling position and in front of the pivotal mounting of the feeler carrier when the feeler is moved frontwardly on a detecting beat, and a stop for limiting the swinging movement of the'pivotally mounted feeler carrier.

4. In a feeler mechanism for looms,.the

Y combination of a pivotally mounted feeler carrier, a feeler mounted on the feeler carrier for longitudinal movement, a spring acting upon the feeler in a rearwardly inclined direction back of the pivotal mounting of the feeler carrier when the feeler is in rearward feeling position and in front of the pivotal mounting of the feeler carrier when the feeler is moved frontwardly on a detecting beat, and a transmitter connected to the feeler carrier.

5. In a feeler mechanism for looms, the combination of a feeler stand, a feeler carrier pivotally mounted on the feeler stand for swinging movement, a feeler mounted on the feeler carrier and displaced frontwardly relative thereto on detecting beats, a spring acting upon the feeler in a rearwardly inclined direction back of the pivotal mounting of the feeler carrier when the feeler is in rearward feeling position and in front of the pivotal mounting of the feeler carrier when the feeler is moved frontwardly on a detecting beat.

6. In a feeler mechanism for looms, the

combination of a feeler stand, a feeler carrier pivotally connected to the feeler stand and provided with feeler hearings in front and in rear of its pivotal connection with the feeler stand, a feeler mounted for movement toward and from the front of the loom in said bearings, a spring connected to the feeler between said bearings and acting upon the feeler in a rearwardly inclined direction back of the feeler carrier pivotal connection I when the feeler is in rearward feeling position and in a rearwardly inclined direction in front of the pivotal connection when the feeler is moved frontwardly on a detecting 7 beat.

7. In a feeler mechanism for looms, the

the feeler in a rearwardly inclined direction back of the feeler carrier pivotal connection when the feeler is in rearward feeling position and in a rearwardly inclined direction in front of the pivotal connection when the feeler in moved frontwardly on a detecting beat, and stops for limiting the swinging movement of the feeler carrier.

8. In a feeler mechanism for looms, the combination of a pivotally mounted feeler carrier, a feeler mounted on the pivoted carrier for movement towards and from the front of the loom, a pull spring connected to the feeler to move it to rearward feeling position and arranged to pull laterally upon the feeler rearward of the feeler carrier pivotal mounting when the feeler is in rearward feeling position to swing the carrier and feeler laterally to feeling position and frontward of the pivotal mounting of the feeler carrier when the feeler is moved frontwardly on a detecting beat to impart a tendency for the feeler carrier to turn on its pivotal mounting and impart side slipping stress to the feeler.

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

JESSE W. SIMPSON.

combination of a feeler stand, a feeler car-- rier pivotally connected to the feeler stand and provided withfeeler hearings in front and in rear of its pivotal connection with the feeler stand, a feeler mounted for movement toward and from the front of the loom in said bearings, a spring connected to the feeler between said bearings and acting upon

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