2. For a 600 Machine (French Index).
The centre of the pegs are 3-5/8´´ apart. Width of cards, 3-3/8´´, allowing 1/4´´ for distance between 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, 14-5/8´´. Length of card, 16-7/8´´.
3. For an Ingrain Carpet Machine (American Index).
The centre of the pegs are 3´´ from each other. Width of cards 2-3/4´´, allowing 1/4´´ for the 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, 11-3/8´´. Length of card, 13-1/4´´.
B. Lacing of Jacquard Cards by Machine.
Different styles of machines are constructed for doing this work, among which we find machines requiring two needles for each series of holes in the Jacquard cards, and machines using one shuttle in connection with each needle. The Jacquard cards mostly needed are for machines containing 400, 600, etc., hooks and needles.
The Jacquard cards for these sizes have three series of lace-holes, and the number of needles, or needles and shuttles, used in the machine, is proportionally increased.
The Method of using Two Needles for Lacing each Series of Holes
Is the one most extensively employed, hence we will take this machine (W. P. Uhlinger, Phila., builder,) for the subject.