The Perforated Board
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 | = | 3/4 inches. |
| Distance of holes from each centre, | {a, in length of board, 0.27 inch. (See l to b.) | ||
| {b, in width of board, 7/8 inch. (See m to w.) | |||
Distance of first row from the part of the frame illustrated in Fig. I., 2-3/4 inches.
Distance of first row from the rear part of the frame, 2-1/2 inches.
This board is fastened by screws to the frame at places indicated in Fig. I. by 11 and 12.