Читать книгу The Jacquard Machine Analyzed and Explained - E. A. Posselt - Страница 9

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Besides the frame, Fig. I. illustrates: Under I. the Jacquard plunger,¾ inch diameter, for guiding the griffe (attached to its head) when raising. To strengthen the steadiness of this latter movement shoulders are attached to the frame at the three places where the plunger slides.

Height of frame at k,	= 2–¾ inches.
Height of frame at l,	= 2 inches.
Height of frame at m,	= 2 inches.

Screws, f, dotted in drawing, on head of plunger, fasten the griffe to it.

Part III. in Fig. I. illustrates the attachment for providing the lifting of the plunger in a hand-loom, likewise the griffe, etc. This consists of a triangular shaped frame 14–¼ inches high, or less, according to height of room. This part is fastened to the front part of the frame by bolts at o and p. In the slot at the top, between r and s, a wooden cylinder of 3–½ inches diameter is fastened to an iron shaft resting in the frame at t.

At 13 a leather strap is fastened to this cylinder and to the plunger 14. It will easily be seen that by turning the wooden cylinder in the direction of the arrows, 15, the plunger will be raised with the griffe fastened to its top. By reversing the action of the cylinder, the plunger and griffe will return to their previous positions. The action thus described constitutes a “single lift,” raising and lowering of plunger and griffe for each pick.