The elements of dynamic electricity and magnetism (1903)
Atkinson, Philip. [from old catalog] · New York, D. Van Nostrand company · leaf 332
prevent fusion by the extra current at break. This bolt and anvii are insulated from the support-ing frame, while the bolt at the right is connected withit, and both are connected with the terminals of theelectric circuit. When the key is not in use the circuitis closed by a lever pushed under a… … Fig. ioi. as to have a vertical movement limited by the adjust-able screw m and stop underneath. A steel point/,attached by an adjustable screw to the bent end ofthe lever, makes contact in a little groove with theroller r, and embosses the message on a strip of papercarried between the rollers,…
Electricity · Magnetism
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