US1367893A - Machine for spinning artificial silk - Google Patents

Description

E. RITTENHOUSE. MACHINE FOR SPINNING ARTIFICIAL SILK.

APPLICATION FILED MAY 20, I918.

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IAZTQ naw/Er E. RITTENHOUSE. MACHINE FOR SPINNING ARTIFICIAL SILK. APPLICATION FILEDMAY 20, 1918.

1,367,893. Patented Feb. 8, 1921.

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EDWARD BITTENHOUSE, 0F IPHILADELPHIA, PENNSYLVANIA.

MACHINE FOB SPINNING ARTIFICIAL SILK. v

Specification of Letters Patent.

Application filed May 20, 1918. Serial No. 235,669.

To all whom it may concern:

Be it known that I, EDWARD Rrr'rnN- HOUSE, of 2561 N. Front St., Philadelphia-, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Machines for Spinning Artificial Silk, whereof the following is a specification, reference being had to the accompanying drawings.

The invention relates to machines for suitable coagulating solution, are subsequently directed, by means of a guide, to a central point within the spinning or receiving box. rotating at a very high speed.

As a result of the linear speed of the bunched strands and the cooperation of centrifugal force due to the box rotation, the said strands are twisted into a single thread and simultaneously built up in the form of a cake against the inner surface of the box. When the box is filled, it is necessary to replace the same, and this operation, in existing spinning machinery of-this Eharacter. requires a considerable time period. thereby greatly reducing production, until a new box is substituted. Moreover, in order to accomplish th s. the spindle must be brought to a standstill and this is usually accomplished byv stopping the primary drive.

In order to overcome these difficulties I have provided an interchanging mechanism which includes a turntable upon which two or more spindles are mounted. ,This turntable is so arranged that it may be readily swung to withdraw a filled box from active position and substitute an empty one in 'place thereof, with a comparatively small loss of time. means also" being provided for the automatic coupling or uncoupling of the spindles from the driving means. The invention al o comprehends means for auto matically locking the turntable in fixed po-' sition when aspindle has been brought to active. position in alinement with the thread guide and the driving means. v i

The foregoing will be better understood by reference to the following description and the accompanying drawings in which Figure I is a cross sectional elevation through a portionof a spinning machine conveniently illustrating m invention and Fig. II is a plan section 0 the same as viewed in the direction of the arrows II-II in Fig. I.

As herein shown, the machine comprises a framework so arranged as to afford a sup- .port fora double row of twisting devices comprehensively indicated at 1-1, each se- Patented Feb. 8, 19211. p

ries being, directly supported upon longitudinal channel beams 22, forming a part of the said frame work. Each of these twisting devices includes a turntable'3, centrally pivoted upon a stud 4, fixed to the channel 2. .Since these spinning devices are similar in construction, further description will be referred to in'the singular for convenience of explanation.

Rotatively supported in suitable bearings integrally formed with the turntable are a plurality of spindles 55, in this instance two in number. Spindles 55. are provided at their lower ends with friction disks 66. which. depending upon the position of the turntable, are alternatively adaptedto engage with a similar friction disk 7, mounted upon a line shaft 8, running lengthwise of the machine and constantly rotated by any suitable )driving means not shown.

The peripheries of the disk'6. are beveled as shown. so as to facilitate their riding over the periphery of the driving disk 7 in the.-

course of being shifted to active position as above noted. As will be seen from Fig. I,

a slight vertical play is allowed the spindles 5-5. for this purpose. the frictional contact between the cooperative disks being maintained under the influence of gravity.

Each spindle is surmounted by an annular seat or collar 10, for supporting the receiving box 11, a central stud 12. (serving to prevent displacement. The bunched strands of celIulose. after passing through the coagulating bath. as hereinbefore explained, are

directed. by means of a guide 13. preferably of glass and centrallv suspended over the w receiving box 11, to the interior ofthe latter.

, Centrifugal force due to the high rotative speed of the box 11, causes the yarn to be thrown against the inner vertical face of the box 11. By virtue of an attendant vertical reciprocation of the guide 18, through means to be later described, the yarn is collected in the form of an annular cake C,

' movements of the guide.

taking the shape of the internal contour of the box 11. The rate of the feeding of the cellulose is so related with respect to the speed of rotation of the receiving box 11, that a twisting of the strands into a single thread or yarn is accomplished in a manner already so well known in this art as to obviate any further detailed description.

The box 11. is normally closed at the top by a removable cover plate 15. A central opening 16, in the plate is provided for the Said guide is fixed in the-outer end of a horizontal arm 17, supported by a vertical slide rod 18, suitably guided by the frame of the machine,

Reciprocation is imparted to the slide rod by means of an arm 19, secured upon a rock shaft 20, running along the longitudinal center of the machine and slowly oscillated by any suitable instrumentalities to effect the gradual raising and lowering of the guide as already noted.

The turntable is normally held in a locked position by a lever 21, which is adapted to engage in either of the notches 22, in the said turntable. Said lever is fulcrumed intermediate of its ends about a fixed'pivot 23, and is normally maintained by ravity in the position shown at the left of I.

In order that the lever may be released from engagement with the turntable to permit the swinging of the same, said lever is notched at itslouter end so as to be engaged by a pin 25, projecting laterally from the slide rod 18, near its lower end. Thus when it is desired to swing the turntable, the operative raises the slide rod 18, by means of I the horizontal arm 17 as a result of which,

the previous charged one is in a position to the pin 25, engages the notched end of the locking lever 21, thereby swinging the same to clear the table. Consequent upon this action, the slide rod and the guide will be .held in the raised position by virtue of the engagement of the free end of the locking lever with the under face ofthe turntable as clearly shown at the right of Fig.1. After the next notch is moved into position to register with the locking lever the parts just described will again automatically, under the influence of gravity, assume their irormal positionsas indicated at the left of It will thus be readily seen that after a new box has been brought to active position,

be readily accessible to the operative for re moving the formed cake therefrom, or replacing it by another empty box.

Owing to'the corrosive nature of the coagulating solutions, and since a certain amount of the same is invariably thrown off during the twisting, operation the movable parts of the machine are adequately protected at the top by a guard plate 30.

For the same reason, the turntable is protected by an annular flanged protective disk 31, which is supplemented by opposed arcuate guards 32, which are concentric with the centers of rotation of the'spindles and partially surround the same as shown in Fig. II.

While I have shown and described my invention as especially adaptable to artificial silk spinning machinery, it is, of course, to be understood that I .do not wish to be thus limited since various adaptations to other uses may be made and details of construction varied without departing from the spirit thereof.

of spindles; a turntable for supporting said.

spindles whereby the latter may be successively advanced to active position with re- Having thus described my invention, I

spect to said thread guide; a secondary driving disk mounted upon each spindle; a power shaft; a primary friction disk cooperative with each of said secondary driving disks only when swung to active position under the movement of the turntable.

2. In a machine of the class described, the combination of a thread guide; a series of spindles; a turntable for supporting said spindles whereby the latter may be successively advanced to active position with respect to said thread guide; means for reciprocating said thread guide with respect to the spindle to build the yarn upon the same; and means coordinated with said reciprocating means for automatically locking said turntable in fixed position.

3. In a machine of the class described, the combination of a series of spindles; a receiving box supported upon each of said spindles; a turntable for supporting said spindles whereby the said boxes may be successively advanced to active position; a thread guide having capacity for reciprocation within the said boxes; means for normally locking said turntable in fixed position; and means whereby the said turntable may be unlocked and the thread guide simultaneously withdrawn from the said boxes to permit the rotation of said turntion within the said boxes; means for nor: mally locking said turntable in .fixed posi'-- tion, including a, gravity actuated locking lever cotiperative with a series of notches in the said turntable; a slide rod for supporting said thread guide; means carried by said slide rod forengagi'ng said locking lever to release the turntable when the thread guide is withdrawn from within the boxes to permit the rotation of said table.

5. In a machine of the class described, the combination of athread guide; a series of spindles; a turntable for supporting said spindles whereby the latter may be succesfourteenth day of 'sively advanced to active position 'with respect to said thread guide; an annular rotective disk surmounting saidturntable; arcuate guards, integrally formed with said disk and spindles substantially as described and for the purpose specified.

artially surrounding the said In testimony whereof, I have signed my Y namefat Philadelgliia,

ay,1918.v

EDWARD RITTENHOUSE.

Witnessesz. a

FLORENCE GALLAGHER,

' Cms. S. Ln'rLu'roN.

Pennsylvania, this

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