US1654269A - Loom - Google Patents

Description

mm. 27, 1927. 1,654,269 J. NORTHRO P LOOM Filed Aug. 16, 1921 2 Sheets-Shem a .B I w Patented Dec. 27, 1927.

1,654,269 NITED STATES PATENT' OFFICE.

JONAS NQRTHRQP, 0F HOPEDALE, MASSACHUSETTS. ASSIGNOR, BY MESNE ASEIGN- MEETS, TU DRAPER CORPORATION, OF HOPEDA-LE, MASSACHUSETTS, .4 3, GUHPURA- TIUN OF MAINE.

LOOM.

Application filed August 16,1921. Serial No. 4923,734.

The present invention relates to an improvement in looms, more particularly automatic welt replenishing looms.

it sometimes happens in replenishing the weft in automatic looms that the bobbin insorted in the shuttle by the weft replenishing; mechanism is not correctly presented nor securely held in-the shuttle, with the result that on the beat of the lay to the rear after replenishment; the bobbin moves fron lts position in the shuttle to some other position, sometimes jumping out above or below the shuttle and sometimes assuming a position at right angles to the shuttle. This sometimes prevents picking of the shuttle and then when the lay beats forward again, the bobbin strikes against the hopper and sud-- denly arrests the lay and stops the loom. ilhile this is objectionable in ordinary belt driven looms because ol: the wear on the belt and the liability of injury to the lay and to the loom as a result of this accident, it is a more serirms matter in a motor driven loom, {or in such case it mighthappen that the lay would be arrested in its forward movement before the dagger on the protector nmchanism had struck the frog to knock 0d" the loom, with the result that the loom would be stopped and, the electric motor being held stationary, the motor might be burned out.

The object of the invention is to produce an automatic loom having provision for preventinga this-inserted bobbin from assuminn such a position as to stop the lay on its forward movement before the protector mechanism would be operated. To this end the invention consists in the loom hereinalter described and particularly defined in the claims.

lo the a companying drawings illustrat the pre n' ed term of the invention, 1 a sectional elevation talren at right s to the lay showing; an end view oil oppcr and. assocated parts embodied in a loom; l5 2 a longitudinal, verticah oeo-- nal @lOidl/lfll'l oi. the with a misplaced l bbin and shuttle therein; liig. 3 is a plan t the lay a, portion of the hopper on the line file-El. ll irg. l; and Fig. dtic plan or a loom showing hopper and motor.

ent oi the invenor foot 2 on the breast beam in the usual manner. In Fig. 1 the lay beam 3 and the shuttle 4 are shown in their rear position. Supported on the lay in the usual manner is the dagger 5 of the protector mechanism adapted to cooperate with the frog h which operates to lcnoclr oil the loom, in case it is a belt driven loom, or, to open the clutch in case it is a motor driven loom. lln dot and dash lines in Fig. l is shown at ll the position of the shuttle when the lay is on its forward center, and the dash and dot circle shows the bobbin '2" when it is first inserted in the shuttle a. The bobbin l in passing from the hopper into the shuttle presses rearwardly the bobbin support it), which is pressed forward into its normal position by the spring 11, as is illustrated in the patent granted to me March 19, 1913, No. 1,259,768. The bobbin support 10 is carried by the bloclr 152, as shown in said patent. Un the rear end of this bloclr is secured a bobbin butt cover l3 which has a vertical flange- 14 by which it is secured to the end ot the block 12. it is also provided with a plate 15, extending," rearwardly as shown in Figs. 1!. and 3, which braced in its position by the flange 16 at its left-hand end, as viewed in Fig. 3. When a bobbin is inserted in the shuttle, it is inserted through the open top ot the shuttle box and occupies the dash and dot line position indicated in Fig. 8, and as the lay moves rear- .wardly, the butt of the bobbin moves under the block 12, and then under the bobbin butt cover 13, so that the bobbin is prevented from jumping out ot the shuttle in case it. shall. not have been properly 'PlilCOtl in the shuttle and secured therein by the shuttle spring.

lit will be understood that w t provided with the present inv the bobbin were in placed and the attempt d been i away from the "i I of a belt driven loom this would cause the belt to slip on the driving pulley; in the case of a motor driven loom, as illustrated in Fig. 4, it would create conditions favorable for burning out the motor. In Fig. 2 a shuttle is shown in position arrestedon its first pick awa from the replenishing side of the loom with the bobbin held in depressed position under thebobbin butt cover, and While this would arrest the shuttle and prevent the first pick from taking place, it would not stop the forward beat of the lay because the bobbin would be held down by the bobbin butt cover, with the, result that the protector mecahnism would stop the loom Without injury to the belt or motor.

Fig. 4c is a diagrammatic representation of a motor driven loom to which the invention is preferably applied, because the 1njury liable to be sufi'ered by the motor in the case of a motor driven loom is much greater than that to which the loom would be liable in case it were belt driven. The frame of the loom is indicated at 20, the breast beam at 21, the lay at 3, the motor at 22, and the hoppercor battery at 23.

Viewed in its broader aspects the present invention contemplates an automatic weft replenishing power driven loom provided with means for preventing abobbin from assuming a position in the shuttle on the rearward motion of the lay after Weft replenishment acting to stop the loom on the next forward beat of the lay and more specifically an electric motor driven loom,

having such means so as thereby to prevent endangering the motor by stopping the loom without opening the motor clutch:

Having thus described the invention, what is claimed is:

1. An automatic bobbin supply loom having. in combination, a lay, bobbin supply mechanism, means for actuating the loom.

and means mounted on a stationary part of the loom acting duringthe first rearward movement of the lay after replenishn'ient. upon the bobbins tending to assume a position to prevent picking, to prevent the bob- .for actuating the loom, and stationary n'icans for covering the bobbin butt while in the shuttle box on the weft replenishing side of the loom at all positions of the lay.

3. An automobile bobbin supply loom hav ing, incombination, a lay, an open top shuttle box bobbin supply mechanism, means for actuating the loom, said bobbin supply mechanism being provided with a portion for covering the shuttle butt while the bobbin is in the shuttle box on the weft replenishing side of the loom at all positions of the lay.

4. An auton'iatic bobbin supply loom having, in combination, a lay, bobbin supply mechanism, comprising a hopper plate, said hopper plate being provided with bobbin butt covering means for covering the bobbin butt While it is in the shuttle on the weft replenishing side of the loom at all positions ofthe lay.

5. An automatic bobbin supply loom having, in combination, a lay, bobbin supply mechanism, protector mechanism, means for actuating the loom, and means mounted on a stationary part of the loom acting during the first rearward movement of the lay after replenishment to prevent the bobbin from assuming a position on such movement of the lay liable to stop the loom by striking a stationary part of the loom on the next forward beat.

6. An automatic bobbin supply loom havmg, in combination, a lay provided with an open-top shuttle box, bobbin supply mechanism, means located above the butt of the bobbin before the shuttle is picked from the box' for preventing the bobbin from rising out of the box after the lay has moved rearwardly from its front center position.

JONAS N ORTHROP.

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