US1651167A - Yarn-dyeing machine - Google Patents

Description

Nov. 29, 1927, 1,651,167

H. M. VAN ALSTYNE ET AL YARN DYEING MACHINE.

Filed Oct. 1, 1926 2v sheets-Sheet l xv I v Q RD WI INVENTOR HMmgvAzsmE WITNESSES MZITEEBELL ATTORNEYS;

Nov. 29, 1927. 1,651,167

v H. M. VAN ALSTYNE ET AL YARN DYEING MACHINE I Filed Oct. 1, 1926 2 Sheets-Sheet 2 H E EMY-M IIII ERIIN- SEE WITNES INVENTOR r fz'M VAN ALSTYNE ad Z7. MLTERBELL ATTORNEYS.

Patented Nov. 29, 1927.

A UNITED STATES PATENT OFFICE.

HOWARD MALCOLM VAN ALSTYNE AND WALTER BELL, OF BENSSELAER, NEW YORK.

YARN-DYEING MACHINE.

Application filed October 1, 1926. Serial No. 138,922.

The present invention is primarily concerned with the provision of-that class of dyeing machines used for dyeing alternate sections of a length of thread or yarn passed through the machine and leaving alternate sections free from dye, although the machine may, if desired, be used for continuously dyeing a length of yarn passed theret-hrough.

The machines which have been previously used or designed for this purpose have been subject to several outstanding defects which render them unsatisfactory from a. commercial standpoint. In the first place, the action of the thread or yarn while being wound and rewound throws off lint and the conventional types of dyeing machines are so constructed that they have a. series of openings which quickly become clogged with the lint. In our machine all of the openings are covered to prevent clogging, and, incidentally, to prevent loss by evaporation of the alcohol with which the dye is cut. In the conventional machines it is also impossible to change the touch or pressure of the thread on the dye pad While the machine is in motion. This contact may be changed at will with our machine, a feature particularly valuable when running samples.

Another object of the invention is to provide a machine of simple, practical construction having only one moving part for each thread and preferably with that part moving in a smooth rotary manner.

v Another object is to provide a machine which is rugged and durable in use, in which minor variations in thread contact may be readily adjusted, in which the dye pads may be chan ed withease and expedition, and in which t e cleaning and recharging of the machine for different dye colors may be quickly and conveniently efl'ected.

In the preferred embodiment of the invention, the thread or yarn running through the machine is moved into and out of contact with the dye pads by means of parts which are operated by the movement of the thread itself, or, in other: words, the movement of the thread into and out of cbntact with the pads is effected or controlled by thread-operated mechanism. The importance of this feature will be evident upon consideration of the fact that there is a constant change inthread speed on all winders or spinners due to the constant increase in bobbin diameters as the thread is wound upon it and to the conical shape of the core upon which the thread is wound. In machines of the conventional type where the intervals at which the thread is lifted are uniform, the pattern of the dyed thread is materially affected by the variation of thread speed.

With the above noted and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of arts as will be more fully hereinafter descri ed.

The invention may be better understood spinning or winding machine and is adapted" to effect dyeing of the yarn as the latter is passe-d from one bobbin to another of the spinning or winding machine. The yarn only alternate lengths of which are dyed, is commonly woven or knitted to produce a speckled or mottled effect in the woven goods.

'We have not shown any means for supporting the machine in proper relation to the spinner or winding machine, but it will be evident that this support may be had in any desired manner and by any desired means in accordance with the particular type of machine with which the dyer is to be associated.

The machine includes an elongated hollow cylindrical body 10 the endspf which are closed by suitable caps 11 and 12. The cap 12 is in the nature of a T-coupling and through this cap a pipe 13 enters the cylinder 10, this pipe receiving dye under pressure through a supply line 14. Nipples 15 screwed into the top of the cylinder 10 at proper intervals are adapted to support dye pads 16, the pads being clamped in position on the nipples by caps 17 having slots 18 therein exposing the intermediate portion of justing screw 23 passed through the cap 11 is formed with a cylindrical bore 24 guiding the valve stem 25. An expansible spring 26 encircles the stem between the screw 23'and valve 22 and may have its tension .properly adjusted by turning the screw 23.

Split collars 27 encircle the cylindrical body and are retained in place by screws 28 or other suitable means, said collars preferably carrying three supporting arms. @ne supporting arm 29, projects rearwardly from the body 10 and co-operates with similar arms in supporting a bar 30 in which a number of screws 31 are vertically adjustable, carrying thread guides 32 at their upper ends. Another arm, 33, depends from the body 10 and co-operates with one ormore similar arms to provide a bearing for a shaft '34; upon which the ends of arms 35 are adjustably mounted. 'lhe free ends of the arms 35 carry conventional tensioning discs 36.

The third set of arms 37, for the split collars 27, project forwardly and are formed with hearing sleeves38 at their free ends in which bushings 39 are carried. v llhe bushings '39 are eccentrically bored for the reception r of a pulley wheel shaft l0 upon which a number of eccentric pulleys 41 are mounted. The simultaneous adjustment of the thread tensioning discs 36 may be efiected by usinga handle 45 to rotate shaft 34. Eccentric bushings 38 are rotatable in their bearings to raise or lower the pulley shaft 34 by turnin a hand wheel 46.

ien the machine is in operation the only moving parts are'the eccentric pulleys 41, and theseparts are moved by the thread 19, which, as best seen in Fig. 4, is passed between the tensi-oning discs, over the pulleys, across the dye pads, and through the guides 32, it being understood that each dye pad is alined laterally with a guide 32, pulley 4:1, and tensioning roller 36.

The operation of he device is substantially as follows:

As the threads are drawn through the machine by pulling them. from beyond the guides 32, the thread will cause the pulle s to rotate, and due to the eccentricity oft e pulleys the thread will be intermittently ifted up from the dye pad at each revolution of the pulleys. To change the relation between the periods at which the thread is dyed and the periods at which the thread is undyed it is merely necessary to raise or lower the 'glaft 40 by rotating the eccentric bushings resi e? From the foregoing description it will be evident that we have provided a machine well suited to accomplish the results set forth in the objects of the invention above noted, and a machine in-which the application of the thread to the dye pad and the lifting of the thread from the dye pad, are effected solely through parts set in motion by the thread itself.

' Various changes and alterations might be made in the construction of the device without departing from the spirit or scope of the appended claims.

- What we claim is:

1. A. thread-dyeing apparatus including a tank having openings therein, dye pads covering the openings, and a dye supply line within the tank including nozzles discharging dye under pressure against the pads.

2. A thread-dyeing apparatus including a tank having openings therein, dye pads covering the openings, a dye supply line within the tank includingnozzles discharging dye under pressure against the pads, a pressure relief valve in the dye supply line,

and a dye return line through which excess.

dye from the nozzles or dye escaping from the valve is drained from the tank.

3. A thread-dyeing apparatus, including a tank having openings therein, dye pads covering the openings, a dye supply line within the tank including nozzles discharging dye under pressure against the pads, nipples encircling the openings in the tank and supporting the dye pads, and caps screwed on to the nipples and clamping the pads in position.

4. Dyeing apparatus as described in claim 3, and wherein the caps are slotted to permit the contact'of a length of yarn with the dye pad.

' 5. Thread-dyeing apparatus including a pair of concentric tanks, the inner of which serves as a dye supply line, and caps on the ends of the outer tank, one of said caps serving as a coupling through which the dye supply line enters and excess dye is withdrawn.

- 6. Thread-dyeing apparatus including a pair of concentric tanks, the inner of which serves as a dye supply line, and caps on the ends of the outer tank, oneof said caps serving as a coupling through which the dye supply line enters and excess dye is withdrawn, the other cap carrying a relief valve 1 v of the thread for intermittently lifting the meme? thread from the pad, said means comprising an eccentric pulley rotated by the thread.

. 9. In athread-dyeing machine, a dye pad over which a length of thread is adapted to be drawn, tensioning discs through which the thread is adapted to be passed, and means interposed between the tensioning rollers and the dye pad and controlled by movement of the thread for intermittently lifting the thread from the pad.

10. In a thread-dyeing machine, a dye pad over which a length of thread is adapted to be drawn, tensioning discs through which the thread isadapted to be passed, means interposed-between the tensioning discs and the dye pad and controlled by movement of the thread for intermittently lifting the thread from the pad, and means for adjusting said lifting means-whereby to regulate the length of the intervals during which the thread is lifted.

11. In a thread-dyeing machine, a dye pad over which a length of thread is adapted to be drawn, tensioning discs through which the thread is adapted to be passed, and

means interposed between the tensioning discs and the dye pad and controlled by across which a thread is adapted to bedrawn, and means controlled by movement of the thread for intermittently lifting the thread from the pad, and means for adjusting' said lifting means while the machineis in motion, whereby to regulate the length of the intervals during which the thread is length of thread has passed thereacross, re-

gardless of the varying speed of the thread.

' HOWARD MALCOLM VAN 'ALSTYNE.

WALTER BELL.

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