. The Ontario high school physics. igh as ,007mm, has been obtained with a mercurypump. It requires a good pump of thevalved type to give an exhaustion of 1 mm. 135. Bunsen Jet Pump. Bunsen devised a simple and con-venient form of pump, which is much used inlaboratories where a moderate exhaustionis required, as for hastening the process offiltration. In this pump (Fig. 151) waterunder a pressure of more than one atmos-phere is forced into a jet through a tubenozzle N. The air is carried along by thewater and is thus withdrawn from anyvessel connected with the offset tube A. 136. The Hydr
. The Ontario high school physics. igh as ,007mm, has been obtained with a mercurypump. It requires a good pump of thevalved type to give an exhaustion of 1 mm. 135. Bunsen Jet Pump. Bunsen devised a simple and con-venient form of pump, which is much used inlaboratories where a moderate exhaustionis required, as for hastening the process offiltration. In this pump (Fig. 151) waterunder a pressure of more than one atmos-phere is forced into a jet through a tubenozzle N. The air is carried along by thewater and is thus withdrawn from anyvessel connected with the offset tube A. 136. The Hydraulic Air-Compressor. Anapplication of the principle involved in theinstruments just described is to be seen inthe great air-compressor at Ragged Chutes,on the Montreal River, eight miles south-west from Cobalt,the centre of the great mining region in northern Ontario. Fio. 15C. — Sprengel air-pump. A, reservoir intowhich mercury is , {jlass tube of smallbore, about one metrelon^; B, vessel fromwhich air is to be Fig. 151.—Bunsen jetpump. 122 APPLICATIONS OF THE LAWS OF GASES A cement dam 660 feet long across the river raises the levelof the water. By a large tube A (Fig. 152) the water is ledinto two vertical pipes P (only oneshown in the figure), 16 feet in dia-meter, into each of which is fitted aframework holding 66 intake pipesa, a, 14 inches in diameter. Thewater-line is about 10 or 12 inchesabove the top of the nest of intakepipes. In descending the water forms
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectphysics
