. Practical physical chemistry . the thermostat, and the open endof the tube, which passes up above the surfaceof the water, is attached either to a supply ofcompressed air, or to a blower. The ring oftubing in the bath is pierced at intervals by anumber of pin-holes, through which the air can escape andthus stir the water. A convenient water-blower can be fitted up as shown inFig. 21. Into the neck of a moderately large aspirating bottle,a, are fitted air-tight, by means of a rubber stopper, the filterpump b, connected with the water supply, and the outlet tube , carrying air with it,
. Practical physical chemistry . the thermostat, and the open endof the tube, which passes up above the surfaceof the water, is attached either to a supply ofcompressed air, or to a blower. The ring oftubing in the bath is pierced at intervals by anumber of pin-holes, through which the air can escape andthus stir the water. A convenient water-blower can be fitted up as shown inFig. 21. Into the neck of a moderately large aspirating bottle,a, are fitted air-tight, by means of a rubber stopper, the filterpump b, connected with the water supply, and the outlet tube , carrying air with it, passes into the bottle, where thewater collects while the air passes out through c. The pressure yji Fig. 20. THERMOSTATS 77 is regulated by regulating the flow of water through the tap d(which can also be replaced by india-rubber tubing and ascrew-clip). In general, however, a mechanical stirrer driven by a waterturbine, hot-air engine, or electric motor, will be found mostconvenient. These stirrers may be of very varied form,. Fig. 21.
Size: 1017px × 2458px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondonnewyorklongm
