1295 



JACQUARD-LOOM 5 



To form these card-slips, an ingenious apparatus is employed, by which the proper 

 steel punches required for the piercing of each distinct card are placed in their relative 

 situations preparatory to the operation of piercing, and also by its means a card may 

 be punched with any number of holes at one operation. This disposition of the punches 

 is effected by means of rods connected to cords disposed in a frame, in the nature of 

 a false simple, on which the pattern of the work to be performed is first read in. 



These improved pierced cards, slips, or pasteboards, apply to a weaving apparatus, 

 which is so arranged that a figure to be wrought can be extended to any distance along 

 the loom, and by that means the loom is rendered capable of producing broad-figured 

 works ; having the long lever G placed in such a situation that it affords power to the 

 foot of the weaver, and by this means enables him to draw the heaviest morintures 

 and figured works, without the assistance of a draw-boy. 



The machinery for arranging the punches consists of a frame with four upright 

 standards and cross-pieces, which contains a series of endless cords passing under a 

 wooden roller at bottom, and over pulleys at the top. These pulleys are mounted on 

 axles in two frames, placed obliquely over the top of the standard frame, which pulley- 

 frames constitute the table commonly used by weavers. 



In order better to explain these endless cords, fig. 1295 represents a single endless 

 cord, 1 1, which is here shown in operation, and part of another endless cord, 2 2, 

 shown stationary. There must be as many endless cords in this frame as needles in 

 the weaving-loom, a is the wooden cylinder, revolving upon its axis at the lower part 

 of the standards ; b b, the two pulleys of the pulley-frames above, over which the 

 individual endless cord passes ; c is a small transverse ring. To each of these ring's a 

 weight is suspended by a single thread, for the 

 purpose of giving tension to the endless cord, d is 

 a board resembling a common comber-bar, which 

 is supported by the cross-bars of the standard 

 frame, and is pierced with holes, in situation and 

 number corresponding with the perpendicular 

 threads that pass through them; which board 

 keeps the threads distinct from each other. 



At e, the endless cord passes through the eyes 

 of wires resembling needles, which are contained 

 in a wooden box placed in front of the machine, 

 and shown in this figure in section only. These 

 wires are called the punch-projectors; they are 

 guided and supported by horizontal rods and 

 vertical pins, the latter of which pass through 

 loops formed at the hinder part of the respective 

 wires. At /are two horizontal rods extending the 

 whole width of the machine, for the purpose of 

 producing the cross in the cords ; g is a thick brass 

 plate, extending along in front of the machine, and 

 lying close to the box which holds the punch- 

 projectors; this plate g, shown also in section, 

 is called the punch-holder ; it contains the same 

 number of apertures as there are punch-projectors, 

 and disposed so as to correspond with each other. 

 In each of these apertures, there is a punch for the 

 pxirpose of piercing the cards, slips, or pasteboards 

 with holes ; h is a thick steel plate of the same size as g, and shown likewise in section, 

 corresponding also in its number of apertures, and their disposition, with the punch- 

 projectors and the punch-holder. This plate h, is called the punch-receiver. 



The object of this machine is to transfer such of the punches as may be required for 

 piercing any individual card from the punch-holder, g, into the punch-receiver, h ; when 

 they will be properly situated, and ready for piercing the individual card or slip with 

 such holes as have been read in upon the machine, and are required for permitting the 

 warp threads to be withdrawn in the loom, when this card is brought against the ends 

 of the needles. The process of transferring the patterns to the punches will be effected 

 in the following manner : 



The pattern is to be read in, according to the ordinary mode, as in a false simple, 

 upon the endless cords below the rods /, and passed tinder the revolving wooden 

 cylinder a, to a sufficient height for a person in front of the machine to reach conve- 

 niently. He there takes the upper threads of the pattern, called the beard, and draws 

 them forward so as to introduce a stick behind the cords thus advanced, as shown by 

 clots, for the purpose of keeping them separate from the cords which are not intended to 

 be operated upon. All the punch-proj ectors which are connected with the cords brought 



