Fig. 334. KINNERSLEY'S THERMOMETER.
Thermometer, Kinnersley's.
A thermo-electrometer. A large glass tube is mounted on a standard and
communicates with a small tube parallel to it. Water is poured in so as
to rise in the small tube. Two wires terminating in bulbs enter the
large tube by its top and bottom. The upper wire can be adjusted by
moving up and down through a stuffing box. On discharging a Leyden jar
through the space between the knobs on the two wires the water for a
moment rises in the small tube. There is little or no accuracy in the
instrument. It is allied to the electric mortar (see Mortar, Electric)
as a demonstrative apparatus.
Synonyms--Electric Thermometer--Thermo-electrometer.
Thermo-multiplier.
A thermo-electric battery including a number of couples. The term is
generally applied to a small battery with its similar junctions facing
in one direction and used for repeating Melloni's experiments on radiant
energy, or so-called radiant heat.