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THE PERFORATED BOARD.

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Fig. II.

The perforated bottom board, through which the neck-cords are passed, contains one hole for every hook in the machine, and is illustrated in Fig. II. separately. It shows the following measurements:

Entire width of board = 8 inches.
Entire length of board = 12 inches.
Thickness of board = ¾ inches.
Distance of holes from each centre, {a, in length of board, 0.27 inch. (See l to b.)
{b, in width of board,⅞ inch. (See m to w.)

Distance of first row from the part of the frame illustrated in Fig. I., 2–¾ inches. Distance of first row from the rear part of the frame, 2–½ inches.

This board is fastened by screws to the frame at places indicated in Fig. I. by 11 and 12.

The Jacquard Machine Analyzed and Explained

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