American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 256
I can open thatsafe and not start your alarm. Suppose a isyour safe, b the battery, c the alarm box upstairs in your bed-room, p the positive pole,and n the negative; m is my battery which I AMERICAN HOROLOGICAL JOURNAL. 249 will take in, and attach the positive pole ofmine to the positive of yours… … to do is to cut off your wires at t and o, andyour alarm is held by my battery, and the safeat my disposal. To obviate this possibility, which has hithertobeen the great obstacle to the success of allelectric alarms, the inventors have devoted theirwhole energy. Not only have they lavishedupon it…
Clocks and watches
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