[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 268
Figure i. the tube, into the upper cylinder, when it immedi-ately overbalances the lower, and both rotate aboutthe pivot. Their rotation is sufficient to set inmotion the clockwork, and start the bell ringing. 266 ELECTRICITY AND ITS The device can, of course, be adapted to electricbells equally… … Figure 2. but where it is not desired to sound an alarm at adistance, the clockwork is held preferable, on ac-count of its simplicity, cheapness and portability.The clockwork is entirely encased by the gong, RECENT APPLICATIONS. 267 and is wound by means of it, so that no key is re-quired. The…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
