Battery, Cautery.
A battery used for heating a platinum wire or other conductor used for
cauterization in electro-therapeutics. The term is descriptive, not
generic.
Battery, Chloric Acid.
A battery of the Bunsen type in which an acidulated solution of
potassium chlorate is used as depolarizer.
Battery, Chloride of Lime.
A battery in which bleaching powder is the excitant. The zinc electrode
is immersed in a strong solution of salt, the carbon in a porous vessel
is surrounded with fragments of carbon and is packed with chloride of
lime (bleaching powder). There is no action on open circuit. It has to
be hermetically sealed on account of the odor. Its electro-motive force
is--initial, 1.65 volts; regular, 1.5 volts.
Synonym--Niaudet's Battery.
Battery, Chromic Acid.
Properly a battery in which chromic acid is used as a depolarizer. It
includes the bichromate battery. (See Battery, Bichromate.)
Battery, Closed Circuit.
A battery adapted by its construction to maintain a current on a closed
circuit for a long time without sensible polarization. The term is
merely one of degree, for any battery becomes exhausted sooner or later.
As examples the Grove, Bunsen or Daniell batteries may be cited.