I. Dobby Card Punching Machines.

These machines, illustrated by Fig. 1., (W. P. Uhlinger, builder), are

used for stamping cards for the smaller Jacquard machines, technically

termed “Dobbies.” They are of very compact build, and operated by

belt-power. The whole card is punched at one revolution or stroke. The

rack on top of the machine holds the design. The punches for peg-holes

and lace-holes are immovable, while the key punches act independently,

at the will of the operator. Jacquard cards for these machines are

generally composed of the strongest pasteboard, and require a very

strongly constructed machine.

The Jacquard Machine Analyzed and Explained With an appendix on the preparation of jacquard cards, and practical hints to learners of jacquard designing · 第 47 / 86 题