The Jacquard Machine Analyzed and Explained / With an appendix on the preparation of jacquard cards, and practical hints to learners of jacquard designing

by E. A. Posselt

The shaded part of the drawing above the hammer represents the cylinder, i, which has its shaft for turning at m.

THE NEEDLE-BOARD.

Fig. XI.

As before mentioned, the heads of the needles are passed through the needle-board. A drawing of this board, representing the front view, is shown in [Fig. XI.] The following are the dimensions:

a to c, = 9-1/2 inches. a to b, = 2-3/8 inches.

Each side of the prism, always technically called the cylinder, has a protruding peg about 1/2 inch in length. When in contact with the needle-board these pegs enter the black holes shown upon either side in drawing. The 208 needles and holes in the present machine are represented by a small spot for the former with an outside ring for the latter.