American School of Correspondence · Chicago, American school of correspondence · leaf 241
g between two rolls connected with opposite poles of an elec-tric generator, prevent the flow of the electric current. As longas the sliver is between these rolls, the stop motion remains in-operative, but should it break and allow the rolls to come together,the circuit is completed and the machine… … Fig. 145. Magnet Box for Electric Back Stop Motion. ducted by means of rods, or wires, from the generator, which isconveniently located and is usually furnished for a certain numberof deliveries of drawing. The positive pole or wire, A^, is indicated by the sign -|- andthe negative wire, Z^, by the…
Textile industry and fabrics
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