US58836A - Improvement in modes of producing vari egated threads - Google Patents

Description

wing/JMJ N.PETERS, PHOTLITHcGRAPHER. WASHINGTON, u C.

UNTED STATES PATENT OFFICE.

ROBERT KERSHAVV, OF PHILADELPHIA, PENNSYLVANIA.

kIMPROVEIVI ENT IN MODES OF PRODUCING VARIEGATED THREADS.

Specificationforming part of Letters Patent No. 55,836, dated October 16, 1866.

To alt whom it may Concern.-

Be it known that I, ROBERT Kitnsnnw, of Philadelphia, Pennsylvania, have invented a Mode or Process of Producing Variegated Threads; and I do hereby declare the following to be a full, clear, and cXact description of the same, reference being had to the aecompanying drawings, and to the letters of reference marked thereon.

My invention relates to the production of variegated threads to be used in the manufacture of variegated textile fabrics; and my invention consists in producing a variegated thread by imparting to a central thread, or to a guide which conveys a wrapping-thread to the central thread, such a varying', irregular, intermittent, or reversing traversing motion as will cause the wrappillg-thread to be wound on the central thread in differentquantities at different points.

In order to enable others skilled in the art to practice my invention, I will now proceed to describe certain mechanism by which it may be carried into effect.

On reference to the accompanying drawings which form a part of this speciiication, Figure l is a side elevation of a machine for carrying out my mode of producing varie-- gated threads; Fig. 2, a sectional elevation; Fig. 3, a plan view; Fig. 4, a detached view of part of the machine, and Fig. 5 a sectional view of Fi 4. f

Similar letters refer to similar parts throughout the several views.

A is the base of the machine, to which are secured the side frames, B and B', and between the latter extend shelves or platforms C and D. In the side frames turn shafts F, G, H, and to the former is secured a roller, E, on which bears a detachable presser-roller, E', the journals of the latter projecting into slots c in the side frames. On one end of the shaft F is a pinion, I), the teeth of which are adapted to those of a sectional pinion, c, secured to the driving-shaft G, and on the outer end of the latter is a grooved pulley, d. On the shaft H are two grooved pulleys, e and f, and round the latter and round the pulley d extends a band, g.

In suitable bearings in the base-plate A and ,in the platform C turns a vertical spindle, I,

round a grooved pulley, h, on which and round the pulley c passes a band, g.

In the platform O is secured a ring, K, on which slides the usual traveler 1', and on the upper end of the shaft or spindle I, which projects through the ring K, is a detachable spool, L.

To the platform D, directly above the spindle I, is secured a plate, M, in the outer end of which is an opening a, and to the upper side ofthe plate is fastened the lower end ot' an inclined split tube, N, in which are slots s s.

To the platform D is secured a rod, O, for a purpose described hereinafter.

The devices above described, with the exception of the tube N and the sectional pinion c, are similar to those used in an ordinary twisting-machine.

The thread or cord to be spun or twisted is conducted from between the feed-rollers E E', through the tube N, opening a, and traveler t', to the spool L.

.As the spool L revolves, the traveler i will be carried rapidly round on the ring K, and the thread or cord x will be twisted or spun in a manner too well known to those familiar with this class of machines to need particular description.

A spool, Y, containing a thread, y, of any suitable color, is placed on the rod O, and the thread from the spool is passed through the slots in the tube N and secured to the cord w. As the cord is spun or twisted the thread'y is lapped round it, a knot, u, being thus formed on the cord at a point opposite the slot s.

When the teeth of the sectional pinion c are brought into contact with those of the pinion b the roller E will be caused to turn a portion of a revolution, and the cord rv will be passed quickly downward through the tube N for a short distance, and will then again be held stationary until the teeth of the pinion c are again brought into contact with those of the pinion b.

As the cord .fr passes quickly through the tube N the thread y will be lapped spirally round the cord instead of being formed into a knot. A second knot, however, will be formed as before the instant the cord w is again stationary. As the cord a is twisted and fed intermittent-ly to the spool L, as described, the

thread y is lapped on the same in alternate knots and spirals, and a variegated thread of the character shown in Fig. ft is thus produced.

rEhe distance between the knots is regulated by the amount of traverse imparted to the cord by the action ofthe rollers, while the size ot' the knots is determined bythe thickness of the thread y, the rapidity of the spinning or twisting motion imparted to the cord x, andthe length of time the latter is held stationary.

The cord ac may consist of two or more strands of different colors.l Two different colored threads, i may also be introduced together through lthe same slot s, or separately through slots opposite each other in different sides of the tube N. i

A thread having the knots alternately of different colors may be produced by introducing a thread, y, of one color through the slot S and another thread of a different color through the slot s', as shown in Fig. 5.

By using a tine thread, y, and imparting a tight tension to the same, it may be so buried .in the cord x as only to appear at points where but at different degrees of speed, another variety of thread being thus produced.

When it is desired to lap a thread round a Zephyr or other cord, which, when in a iinished state, should be loosely twisted, a tight twist isvrst imparted to the cord. It is then introduced into the machine and untwisted as it passes through the tube N, thethread y being lapped round the cord during the untwisting ot the latter.

Although I have illustrated and described `peculiar mechanism for carrying out my in- Producing a variegated thread by imparting to a central thread, or to a guide which conveys a lapping thread to the central thread, such a varying, irregular, intermittent, or reversing traversing motion as will cause the lapping thread to bc wound on the central thread in different quantities at different points.

In testimony whereof I have signed myname to this specification in the presence of two subscribin g witnesses.

ROBERT KERSHAV.

Witnesses:

CHARLES E. FOSTER, JOHN WHITE.

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