Jacquard Machines: Instruction Paper
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Оглавление
H. William Nelson. Jacquard Machines: Instruction Paper
Jacquard Machines: Instruction Paper
Table of Contents
JACQUARD MACHINES
SINGLE ACTION MACHINE
DOUBLE-LIFT AND SINGLE CYLINDER MACHINES
DOUBLE ACTION MACHINE
THE RISE AND FALL OR CLOSE SHED MACHINE
EXAMINATION PAPER
Отрывок из книги
H. William Nelson
Published by Good Press, 2021
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In the old jacquard machine the hooks rested on a perforated board, through which the neck cord passed, and the bottom of the hook was bent up about five inches, as shown in Fig. 1. Bars were passed through the turned up portion, as shown in the illustration, to prevent the hooks from turning. The bars formed a frame which was lifted when the griffe was raised.
The next hook, as shown in Fig. 2, was flat. This also rested on a perforated board, and, to assist in keeping the hook in position, the needle was twisted around the hook. This kind of hook and needle required too much time and labor when one had to be replaced.
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