US2009174A - Bobbin receiving and guiding device for automatic looms - Google Patents

Description

July 23,1935. A. A. GORDON BOBBIN RECEIVING AND GUIDING DEVICE FOR AUTOMATIC LOOMS Original Filed July 20, 1933 2 Sheets-Sheet 1 jufly 23, 1935. A. A. GORDON 2,009,174

BOBBIN RECEIVING AND GUIDING DEVICE FOR AUTOMATIC LOOMS Original Filed July 20, 1933 2 Sheets-Sheet 2 Patented July 23, 1935 2,009,174 v 'BOBBIN RECEIVING AND GUIDING DEVICE I FOR AUTOMATIC Loo s Albert A. Gordom worcester,,Mass ass igno r to I Crompton &;Knowles Loom Works,,Worcester,

Mass.,acorporation of Massachusetts 'Original application July'20, 1933, Serial No. I

.. 681,272. Divided and this application Novem- 7 her 15, 1934, Serial No. 753,187

- 4 Claims. (o1. res-25m This:;invention relatestoautomatic looms of the bobbin changing typeandis a'division of my prior-application Serial No. 681,272, filed by me .July 20, 1933, which issued as PatentNo. 1,982,249 :on.Nov..27,.1934.- z H V i 1 The general 'objectof my invention as set forth :inthis di'visionaliapplication is to provide an improved'device for receiving and guiding the empty bobbins as they are'ejected: from the exhausted shuttles;

..My invention further relates .to arrangements and combinations of parts whichwill be hereinafter described and more particularly set forth in thelappended .claims.

5 A preferred form of the invention is shown in the drawings, in which Fig. 1 is an end view of parts of a loom, and showing the application of my invention thereto;

Fig. 2 is a front elevation of the device for directing and guiding the ejected bobbin;

Fig. 3 is an end view thereof, looking in the direction of the arrow 3 in Fig. 2, and

Fig. 4 is a detail plan view, looking in the direction of the arrow 4 in Fig. 2.

Referring to Fig. 1, I have shown portions of an automatic weft replenishing loom of the type shown in my prior patent and comprising a loom side Ill, drop boxes II, a two-cell magazine l2 and a transferrcr 13 mounted on a rod or support l4 swinging about a fixed pivot IS.

A cam I6 is mounted on the usual cam shaft l1 and engages a cam roll H! on a bell crank lever l9 mounted on a fixed pivot 20. A spring 2| holds the roll I 8 yieldingly against the cam I6.

A stud 22 in the upper end of the bell crank I9 projects into an L-shaped slot 23 in a head 24 fixed to one end of a connecting rod or link 25, which in turn is pivoted at 26 to a collar 21 fixed on the transferrer support I4.

The head 24 rests on the outer end of an arm 30, mounted on a shaft 3| rotatable in fixed bearings and extending across to the other side of the loom where it has a feeler-controlled connection to intermittently actuated operating mechanism.

Under normal conditions, the parts occupy the position indicated in Fig. 1 and the stud 22 swings idly in the segmental horizontal portion of the slot 23. Upon indication of weft exhaustion, however, the arm 30 is swung upward when the stud 22 is at the front end of the slot 23, thus causing the stud to enter the vertical forward end portion of the slot 23 and to thereafter move the head 24, rod 25, support I 4 and transferrer I3 rearward on the next oscillation of the bell crank l9 by the cam l6.

The magazine [2 is. of the previously known I type in which bobbin holders are selectively movable downward to present the lowermostbobbin ;B in the path of the transferrer l3. The movement of the bobbin'holders iscontrolled by;a 5 rock shaft orso-calledfcolor slide 4| (Fig. l) movable endways by a bell crank 42 to selectively engage .the oneor the other ,of the bobbin holders and movable angularly by the'arm 4 3 and link 44 todepress the selected bobbin holder. M 10 All of the parts thusfar described are of. the usual type as is also theoperating mechanism for the feeler cross shaft 3 I the bell crank and thelink-M. m-

A bobbin retaining device 45 (Fig. 1) is pivoted 15 at 46 on the magazine frame and is provided at its lower end with a resilient plate 4'! which yieldingly engages the bobbin B as the bobbin is moved rearward by the transferrer 13 in anticipation of transfer. 20

In looms of this type the pull-down connections to the harnesses commonly include a plurality of light wire rods 10 which extend downward just at the rear of the lay and more or less in the path of the ejected bobbins. Engagement of the 25 wires by the ejected bobbins has been found objectionable. I

It has also been found that properly retarding the rearward movement of the butt of the bobbin effects a rearward swinging movement of thertip 30 of the bobbin, which swinging movement is of substantial advantage in withdrawing the weft end upon the exhausted shuttle.

Accordingly I have provided the bobbin guiding and directing device 15 shown in detail in 35 Figs. 2 to 4. This device comprises a box, preferably of sheet metal, having a contracted depending discharge portion 16 open at its lower end and having an open frame 11 in its upper front portion through which the ejected bobbins 40 I ment of the bobbin, as indicated by the ar- 50 row b in Fig. 4.

This turning movement, as previously stated, is advantageous for withdrawing the weft end from the exhausted shuttle. The guiding and directing device 15 is mounted on a cross bar 55 80 which in turn is firmly attached to a suitable portion of the loom frame.

The device 15 and shield 19 thus act to protect the harness rods 10 and to cause a desired turning movement of the ejected bobbin, as well as guiding the. bobbins downward to the usual bobbin can or receptacle (not shown).

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:--

1. In a weft replenishing loom having a magazine and means to transfer bobbins substantially horizontally rearward from said magazine 'to a shuttle on the lay and to simultaneously eject a bobbin rearward from said shuttle, a bobbin di-, recting and guiding device at the back of the lay having the form of a container with an open front portion and with a bottom opening, one end of said device being forwardly and outwardly inclined, and a shield projecting forwardly and outwardly from said inclined end and at one end of said open front portion, said shield being positioned for engagement bythe butt of an ejected bobbin, whereby the bobbin is directed point-first into said directing and guiding device.

2. In a weft replenishing loom having a magazine and means to transfer bobbins substantially horizontally rearward from said magazine to a shuttle on the lay and to simultaneously eject a bobbin rearward from said shuttle, a bobbin directing and guiding device at the back of the lay having the form of a container with an open front portion and with a bottom opening, one

end of said device being forwardly and outwardly inclined, the top of said device being rearwardly and downwardly curved, and the lower portion of said device being contracted at the front and back and at one end toward said bottom opening.

3. In a weft replenishing loom having a. magazine and means to transfer bobbins 'substan tially horizontally rearward from said mazazine to a shuttle on the lay and to simultaneously eject a bobbin rearward from said shuttle, a bobbin directing and guiding device at the back of the lay having the form of a container with an open front portion, one end of said device being forwardly and outwardly inclined, and a shield projecting forwardly and outwardly from said inclined end and at one end of said open front portion, said shield being positioned for engagement by the butt of an ejected bobbin, whereby the bobbin is directed point-first into said directing and guiding device.

4. In a weft replenishing loom having a magazine and means to transfer bobbins substantially horizontally rearward from said magazine to a shuttle on the lay and to simultaneously eject a bobbin rearward from said shuttle, a bobbin directing and guiding device at. the back of the lay having the form of a container with an open front portion, one end of said device being forwardly and outwardly'inclined, the top of said device being rearwardly and downwardly curved, and the lower portion of said device being contracted at the front and back and at one end toward the bottom portion of said device.

ALBERT A. GORDON.

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