[Illustration: 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.
" length " = 12 "
Thickness " = 3/4 "
Distance of {_a_, in length of board, 0.27 inch. (See _l_ to _b_.)
holes from {
each centre, {_b_, in width " 7/8 " (See _m_ to _w_.)
" first row from the part of the frame illustrated
in Fig. I., 2-3/4 inches.
" " " " 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.