US1907018A - Bobbin holding device for magazines - Google Patents

Description

y 2, 1933- R. G. TURNER 1,907,018

BOBBIN HOLDING DEVICE FOR MAGAZINES Filed Aug. 3, 1931 lllllilllllh 4/ Smientor Rmhaur'd B. Turner (lttofnex; s

Fatented R ley 23, 1933 CROMPTON & KNO'WLES LOOIVI WORKS, 0F HORSES-TEE,

.PORATION OF MASSACHUSETTS TEASSACHUSETTS, A COR- BOIBBIN HOLDING DEVICE FOR MAGAZINES Application filed August 3, 1931.

This invention relates to an automatic weft replenishing loom and particularly to the magazine in which a supply of weft carriers or bobbins is held in reserve.

In certain types of magazines the bobbins are transferred directly rearward from the magazine to the shuttle necessitating openings in the rear side of the magazine to permit such rearward delivery of the bobbins.

It is the object of my present invention to provide improved and simplified. means for yieldingly preventing accidental escape of a bobbin from a magazine of this type but permitting rearward transfer and delivery of the bobbin when required.

A further object of the invention is to provide holding devices which will also prevent rotation of the bobbins in the magazine, thus avoiding entangling of the weft ends.

My invention further relates to certain arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A. preferred form of the invention is shown in the drawing, in which Fig. 1 is a plan view of parts of a weft re plenishing loom embodying my improvements and Figs. 2, 3 and 4 are sectional end elevations taken along the lines 22, 33 and 4& respectively in Fig. 1.

Referring to the drawing, 1 have shown a portion of a breast beam 10 having a magazine M mounted on and supported thereby. I have also shown shuttles S positioned in upper and lower shuttle boxes on a lay 11 having the usual forward and rearward swinging movement. Each shuttle S is retained in its shuttle box by a binder 12 having an opening 13 through which a bobbin B may be inserted. Additional openings 14: are provided in the back box plate through which the exhausted bobbins may be ejected.

The bobbins B are held in superposed position by front guideways 16 and rear guideways 17 formed in the opposite end members of the magazine M. The rear guideways 17 are broken away as indicated at 18 and 19 in Figs. 2 and 3, opposite the openings 13 in the binders 12, so that a bobbin B can be trans Serial No. 554,684.

ferred from the magazine M to the upper or lower shuttles by a direct rearward movement.

Upper and lower transferrers 20 and 21- (Figs. 2 and 3) are positioned opposite the first and third bobbins B, counting from the bottom of the magazine. Each of these transferrers is provided with a lever 25, swingmg about a fixed pivot 26 on the breast beam and having a pin and slot connection with the illTllDSfQIlGl, as indicated at 27. Each lever 25 isalso provided with a projection 30 positioned for engagement by a hook 31 pivoted at 32 on an actuating lever The lever 33 has a regular forward and rearward movement and the hooks 31 are normally held in inoperative position, as indicated in Fig. 1, by springs not shown. The hooks 31 may be selectively moved to opera tive position by rods 34 and 85, controlled by weft detecting mechanism not shown.

The transfer and weft detecting mechanisms form no part of my present invention but are of a usual commercial form.

lVith the construction thus far described, it will be evident that the bobbins B opposite the openings 18 and 19 will be liable to roll rearward through the openings if no provision is made to prevent such movement.

For this purpose I provide magnets 40, 41, 42 and 43 opposite the two ends of the 1st and 3rd bobbins B and I provide the bobbins B with butt elements 4L5 and tip elements 46 of iron or steel or some suitable magnetic metal. I also provide batteries C and D or other suitable sources of current by which the magnets are continuously energized while the loom is in operation.

The magnets 40 to 43, when thus energized, attract the metal portions 45 and 46 of the 1st and 3rd bobbins B, drawing them forward away from the openings 18 and 19 and also holding them from relative rotation.

I thus not only prevent accidental rearward escape of the bobbins through the openings 18 and 19, but I also prevent angular movement of the bobbins, due to the vibration of the loom. This is an important advantage, as such angular movement frequently causes entangling and breakage of the weft ends.

While accidental rearward escape of the bobbins is thus prevented, the bobbins are 5 yieldingly held so that transfer by one or the other of the transfer members 20 and 21 may be readily effected.

While I have shown the invention embodied in a double shuttle loom in which provision is made for transferring either the 1st or 3rd bobbin in the magazine, it will be evident that the invention is equally applicable to a single shuttle loom or to a drop box loom having a single box at the magazine end.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what I claim is I 1. In an automatic loom, a weft carrier magazine having a substantially vertical weft carrier compartment with a delivery opening in the rear wall thereof, and magnetic means to draw a bobbin forwardly and away from said opening and to hold said bobbin yieldingly from rearward displacement.

2. In an automatic loom, a weft carrier ma azine havin a substantiall vertical weft carrier compartment with a delivery opening in the rear wall thereof, and magnetic means to prevent accidental rearward escape of a bobbin through said opening, said magnetic means cooperating with a bobbin in said magazine having magnetic material in the butt and tip portions thereof.

3. In an automatic loom, a weft carrier magazine having a substantially vertical weft carrier compartment with a delivery opening in the rear wall thereof, said magazine being supplied with bobbins having portions of magnetic material in the butt and tip ends thereof, magnets mounted opposite to and forward of the magnetic portions of a bobbin positioned opposite said delivery opening, and means to energize said magnets during the operation of the loom.

4:. In an automatic loom, a weft carrier magazine having a substantially vertical weft carrier compartment with delivery openings rearward and opposite the 1st and 3rd bobbins therein, bobbins for said magazine having magnetic material in the butt and tip portions thereof, and separate magnets mounted forward of and opposite to the magnetic portions at both ends of the first and third bobbins respectively and prevent- GO igg accidental rearward displacement there- In testimony whereof I have hereunto affixed my signature.

RICHARD GREENLEAF TURNER.

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