US2418079A - Bobbin holder - Google Patents

Description

March 25, 1947. J. a LEAKE BOBBIE HOLDER Filed June 21, 1945 2 Shun-Shut l Map lied/Te.

25, 1947. I LEAKE 2,418,079

BOBBIN HOLDER Filed June 21, 1945 2 Sheets-Sheet 2 I ni'entor flit M25." 63519.

Patented Mar. 25, 1947 UNITED STATES PATENT OFFICE BOBBIN HOLDER Joseph E. Leake, Fall River, Mass.

Application June 21, 1945, Serial No 600,783

4 Claims. 1

This invention relates to means for holding the lowermost filling carrier or bobbin in a magazine loom, so as to prevent its rotation or oscillation prior to being transferred into the shuttle of the loom.

In magazine looms, filling carriers or bobbins are placed in a rotating battery or magazine and the ends from the carriers are'wound around the axis on which the battery plates are mounted, so as to provide an end, which can be used by the thread grippers ior gripping the ends when the filling carrier is transferred into the shuttle upon the ex huastion of the filling on the preceding carrier.

It has been experienced, heretofore, that vibration in the loom causes rotation or oscillation of the lowermost filling carrier in the magazine 100m prior to its transfer to the shuttle, and the end of the thread extending therefrom will become broken so that when the filling carrier is transferred into the shuttle, the end will not be engaged by the thread gripper and the loom will cease operating. I

The primary object of this invention is to provide improved means for holding the lowermost filling carrier or bobbin in a magazine Prior to its transfer into the shuttle of the loom. so that the filling carrier cannot oscillate or rotate prior to its transfer into the shuttle.

A further object of this invention is to provide an improved bobbin holder "for normally engaging the lowermost filling carrier or bobbin in a loom magazine, said holder being carried by the transfer arm of the loom and being automatically operable thereby to disengage from said bobbin upon actuation of the transfer arm to transfer the filling carrier or bobbin into the shuttle.

Still further objects of the invention are to provide a bobbin holder which is or extremely simple and durable construction, which includes an efiicient and readily renewable bobbin-engaging element, and which includes simple and efilcient guiding and supporting means adapted to coact with a flange of the battery stand.

The exact nature of the present invention will become apparent from the following description when considered in connection with the accompanying drawings.

In the drawings- Figure l is a transverse sectional view through the battery and lay of a magazine loom, showing the present invention applied thereto.

Figure 2 is a sectional plan view taken on line 2-2 of Figure 1, but showing the lay disposed in a position for receiving a bobbin or filling carrier of the magazine.

Figure 3 is'an elevation taken on line 33 of Figure 1.

Figure 4 is a central longitudinal sectional view or the holder per se, drawn on an enlarged scale and taken substantially on line 4-4 of Figure 1. I

Figure 5 is a fragmentary rear elevational view showing an end portion of the holder illustrated in Figure 4.

Referring in detail to the drawings, the numeral l 0 denotes a conventional battery stand for a battery loom, which has rotatably mounted therein battery plates I i and I2. which are spaced from each other for supporting the filling carriers I 4. When a filling carrier l4 reaches its lowermost position, where it is to be transferred into the shuttle, there is a tendency for the filling carrier to oscillate or-rotate, thereby breaking the end of the yarn and causing the loom to stop or a mi-s-pick to occur in the cloth which is being woven. It is necessary, therefore, to provide a holder which presses against the lowermost bobbin and prevents it from oscillating or rotating, due to vibration. In order to accomplish this result, I have provided a bobbin holder l5 which has a resilient element l6 at one end for normally engaging the filling on the lowermost filling carrier It. The other end of the holder i5 is pivoted upon the pin H which is rotatably mounted in the lower end of a leg iii of the usual transfer member 20. The usual dog 2| is fixed on pin i1 and is adapted to be normally held in the full-line position of Figure l.

The holder l5includes an elongated bar provided, at its end remote from the filling contacting element It, with an opening 22 receiving the pin I! so as to be pivotally mounted on the latter, a cotter pin 22 being used to retain the holder I5 on the pin IT. A torsion spring, considerably shorter than that commonly employed on the pin H,- may be interposed between the member l5 and the arm l9 to hold the dog 2| in its normal position, which spring is omitted for sake of clearness. Intermediate its ends, the holder I5 is provided with an inward projection 23 in which are anchored two spaced, inwardly projecting guide pins 24. The stand "I has a horizontal outwardly projecting flange at 25, and the pins 24 project above and beneath this flange 25 to guide the holder 15 when moved to bring the contact element l8 into or out of engagement withthe filling on the lowermost bobbin l4. The uppermost one of the pins 24 rests upon the flange 25 3 so as to effectively support the holder IS in proper position. The filling contacting element l8 consists of a body of soft and highly resilient material such as sponge rubber, and one end of this body is compressed and forced through a restricted opening a of a laterally directed ear 28 provided on the end of holder 15 remote from that having the pivot opening 22. The natural expansion of this member I 8 retains it in place, although it may be manually removed for renewal when necessary. It will be noted that the bobbin holder is of a unitary character and requires no separate guiding element. Also, the pins 24 may be readily disposed above and below the flange 25 when the holder I5 is placed on the pivot pin H. The transfer member 20 has the usual laterally extending end 21 which is adapted to engage the filling carrier I when a transfer is made.

In the normal operation of the loom, lay 29 oscillates back and forth and the shuttle 30 simultaneously traverses the loom to cause the filling upon the filling carrier l4 to be placed in the warp. Upon exhausting of yarn upon the filling carrier [4 which is in the shuttle 30, suitable conventional mechanism will be thrown into operation to cause the dog 2| to move to the dotted line position of Figure 1. As the lay moves to the dotted line position of Figure 1, the hunter 3|, which is secured to lay 29, will engage dog 2| to swing the transfer member 20 downwardly, which will cause the filling carried ll to be transferred into the shuttle 30. It will also be noted that shortly prior to the transfer, the bobbin holder l5 will be withdrawn from the lowermost filling carrier simultaneously with the movement of arm 21, thereby allowing transfer arm 21 to transfer the lowermost bobbin without any obstruction. Immediately after the transfer, the battery plates II and I2 rotate until the next bobbin assumes the lowermost position previously occupied by the bobbin transferred, and the members will again assume their full line positions, at which time the bobbin support will be engaging the yarn on the lowermost bobbin. The transfer arm 20 is normally held in' raised position, as shown by full lines in Figure 1, by means of a conventional torsion spring 32, which also holds member l5 against the yarn on the lowermost bobbin. The resilient element I6 is preferably constructed of special sponge rubber, is shaped so that it rests against the bobbin of filling with a very light pressure, andhas a suction action. It is also self-adjusting, due to the high resilience of this type of rubber, thus compensating for the different diameters of bobbin of filling.

From the foregoing description, it will be seen that I have provided a novel and efficient means for holding the lowermost bobbin in a magazine loom, said means being carried and operated by the transfer arm so that the-bobbin holder will not interfere with the transfer operation. Minor changes may be made in details of construction illustrated and described, such as ,fall within the scope of the invention as claimed.

What I claim is:

1. In a loom having a battery stand provided with a horizontal flange and carrying a rotary battery for holding a plurality of filling carriers, and having a lay for confining a shuttle and having a transfer mechanism including a transfer arm for transferring the lowermost filling carrier from the battery to the shuttle upon exhaustion of the filling on the carrier in the shuttle, said transfer arm having a downwardly projecting arm, a bar having one end pivotally connected to the lower end of said downwardly projecting arm, and having a member on the other end thereof for engaging the filling on the lowermost filling carrier, and a pin fixed to said bar and slidably resting on said flange of the battery stand for slidably supporting said bar intermediate its ends.

2. The construction defined in claim 1,.in com- 1 bination with a second pin fixed to saidbar, and 30 4. The construction defined in claim 1, wherein said bar has a laterally extending ear having an opening therein, and wherein the filling-engaging member comprises a body of soft, resilient material having one end highly, compressed and disposed through the opening of said ear so as to be retained in the latter by its own resiliency.

JOSEPH E. LEAKE.

REFERENCES ClI'ED file of this patent:

UNITED STATES PATENTS Number Name a Date 1,941,937 Gatlin Jan, 2, 1934 2,008,197 Anderson July 16, 1935 2,107,847 Bahan Feb. 8, 1938 2,119,034 Bahan May 31, 1938 2,355,596 Levesque Aug. 8, 1944 The following references are of record in the

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