US51095A - Improvement in looms for weaving embroidered fabrics - Google Patents

Description

UNITED STATES PATENT OFFICE.

J. G. SPITZLL, OF MILLVILLE, MASSACHUSETTS.

iIMPROVMENT IN LOOMS FOR WEAVING EMBROIDERED-FABRICS.

Specification forming part of Letters Patent No. 51,095, (lated November 21, 1865. y

.To all whom it may concern Beit known that I, J. G. SPITZLI, of Millville, in the county ot' Worcester and State of Massachusetts, have invented a new and Iinproved Loom for Embroidery; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use dle-har is secured, and witha suitable mechanism for turning the pattern-Wheel in such a manner that by the action of the pins in the pattern-wheel on the spring-arms therequired position is given tothe needle-bar and needles, and by screwing or pushing the pins in or out the patternwheel can be adjusted for different patterns.

A represents a frame, made of cast-iron or other suitable material, in the ordinary form of frames for looms. The bottom rails of this frame are provided with boxes for a shaft or rod, a,which forms the bearin gs for the swords supporting the lay or batteri B. This batt-en is constructed with shuttleboxes b b', one at each end, and with a shuttle-race, 5*, in the ordinary manner; but between the shuttle-race and the reed is a slotor gap, c, extending throughout the entire length of the hatten. Through this slot rise two arms, C C', which are pivoted to alongitudinal rod,d, which connects the swords near their bottom ends. The arms C G extend some distance above the batten, and are supported from their upperends by means of spiral springs e e or other equivalent connections in the needle-bar D. This bar is prevented from rising beyond a certain point by hooks f f', secured in the top shell, E,ot` the hatten, and it is guided and prevented from swaying to and fro by L-shaped guidepieces g" g', which catch over the outer edges .of the arms C C', as clearly shown in Fig. l

ofthe drawings, and it is further guided by slotted pieces h It', which are tirnily secured to the top shell, E..

From the lower edge of the bar D project a series of needlesnt, with their eyes below, and through the eyes ot' these needles is drawn the embroidering mattrial.

A lising-and-falling motion is imparted to l the needle-bar by means of two double-arrned levers, F F',whicl1 have their fulcra on pivots t' t', secured in brackets d* di", which are firmly fastened to the rod d. Theinnerends of these levers connect by means of cords k k with the periphery of a drum, G, in such a manner that by turning the drum in the direction of the arrow marked on it in Fig. l the outer ends 'of said levers are depressed. Said outer ends connect, by rods l Zor any other suitable connection, with the needle-bar D, and it` the same are depressed the needle-bar is drawn down against the action of the springs c c', but as soon as the inner ends of said levers are released the needle-bar is free to follow the action of said springs, and it rises to its original position, carrying with it the levers F F and causing the drum Gr to turn to its originalv position. The needle-bar also has a traversing motion in a horizontal or slightlycurved direction, imparted to it by the action Vot" the pattern-wheel H on one of the arms, C. This arm is provided with a cam or projection, m, and said projection is forced against the periphery of the pattern-wheel bya spring, n, extending from the arm C' to the sword next to it. The pattern-wheel rotates ou an axle, o, which has its bearings in two bars, p p, extending from onesword to the other, and securedl to said swords by screws or other suitable means. From the circumference of said pattern-wheel projecta series of radiating pins, g, of an equal lei1gtl1,'and arranged so that their length from the circumference of 'the wheel can be regulated at pleasure. By

imparting to the pattern-wheel an intermittent rotary motion the pins g are successively brought opposite the cam m, and the position ot' the needle-bar hanges according` to the different lengths of said pins. By this m0- tion of the needlebar the threads passing through the eyes of the needles n are-put into the warp of the fabric, which is at the same time being woven upon the loom iu such iigures or lines as the pattern-wheel may determine, and by using two or more. needle-bars and a corresponding num her of pattern-wheels, or one patternlwheel with acorresponding number of sets of pins, patterns of any desirable shape may be produced in the fabric as the weavin g proceeds.

The pattern-wheel receives'its motion by the action of a gravitatin'g hook-catch, r, which is pivoted to a lever, s, and catches over pins t projecting from thefront side of the wheel. The lever s has its fulcrum on the axle of the wheel, and from its lower end extends a cord, u, to the circumference ot' the drum G. ^By turning this drum in the direction marked on it in Fig. 1 the lever oscillates and the hook Vris moved in the direction of thearrow marked near-it in Fig. 1, and on releasing the drum the lever sis drawn back by the action of a spring, o, and the pattern-wheel is caused to rotate in the direction of the arrow marked on it in Fig. 1.

The spring v is guided on a pin,c, which extends from a bracket secured to the front bar, p, and itsl power is so adjusted that it'eft'ects the desired motion of the pattern-wheel after the hook-catch has taken a fresh hold, in the manner previously explained.

It will be noticed that the levers F,F, and s derive their motion from one and the same drum, G, and consequently the downward motion of the needle-bar and its traversing motion take place simultaneously, and the embroidering-'thieads are put into the fabric at the proper intervals,the depression of the needle-bar being necessary in order to bring the embroidering-threads down in thc same place' with the warp-threads.

The motion of the drum G may be elected by hand or foot power, or in power-looms it may be produced by suitable mechanism connccting the same with the working parts ot' the loom.

A suitable friction applied to a pulley on the shaft'o of the' pattern-wheel prevents the same from turning spontaneously, and retains it in` drawings.` As the hatten swings back and forth the bar b2, with the pins a?, rises and falls, and the shuttle is prevented from 'running into the embroidering-threads.

I claim as new and desire to secure by Letters Patent- 1. The pattern-wheel H, composed` of a scriesof adjustable pins, q, in combination with a suitable mechanism forturning the same, and with oscillating spring-arms,to which one or more needle-bars are attached, substantially as and for the'purpose specified.

2. The combination of the pattern-wheel H, needle-bar D, and pins a?, all arranged and operating substantially as and for the purposes speci'tied.

` J. G. s PITZLI.

Witnesses:

. M. M. LIVINGSTON,

C. L. ToPLIFF.

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