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

Fig. IC.

[Fig. IC.] represents a double lift single cylinder Jacquard machine as built by Thomas Halton, Philadelphia, attached to a regular broad loom, (Knowles or Crompton), and tied-up for upholstery work. The griffe-bars in this Jacquard machine are constructed of such height that when lifted they never rise above the crooks of the hooks, which are thrown out of operation by the descent of the other griffe.

Fig. C. Fig. CI. Fig. CII.

[Fig. C.], hooks at rest.

[Fig. CI.], hooks 1 and 3, etc., raised, = 2 and 4, etc., at rest.

[Fig. CII.], hooks 2 and 4, etc., raised, = 1 and 3, etc., at rest.

II. Double Lift Double Cylinder Jacquard Machine.

The principle of this machine consists in the combination of two separate Jacquard machines. Two hooks (one of each machine) are connected to one leash of the Jacquard harness, and as each machine is operated alternately, a high speed is attained, which is the purpose of the machine. For example: 140 picks per minute (speed of loom) only requires 70 picks per minute from each part of the double lift double cylinder.