The Lacing of Cards.
Two methods are observed for lacing Jacquard cards: A, hand-lacing on a common frame; B, lacing by power.
A. Lacing of Jacquard Cards by Hand.
For this purpose the cards are put on a common frame containing on its surface pegs of a corresponding size to those used on the cylinder. The pegs on the frame are made of hard wood, and the pegs of the cylinder of brass. These pegs on the frame are located at exact distances apart, and the frames are built to hold from 30 to 50 cards, superficially arranged.
Figs. [30] and [31] illustrate the frame under S, showing at a three cards arranged for a fabric, with a twill effect from left to right; and at b the same cards arranged for a twill in the opposite direction, from right to left. These frames are arranged to slide into each, so as to adapt them to the distances of the peg-holes in the cards. To give a clear understanding as to the distance of these pegs from each other a few measures most generally used for lacing frames are given.
Fig. 30. Fig. 31.
1. For a 200 Machine (French Index.)
The centre of the pegs are 2-9/16´´ apart. Width of cards 2-5/16´´, allowing 1/4´´ for distance between the cards. Diameter of the pegs at the bottom, 3/8´´. Distance of the centre of one peg to the centre of the corresponding one across the frame, 7-1/2´´. Length of card, 9-5/8´´.