"Air pump" Quotes from Famous Books
 ... tray is a perforated cross-pipe that is connected with a compressed-air line. This is used when case-hardening for colors. The shop that has no air compressor may rig up a satisfactory equivalent in the shape of a low-pressure hand-operated air pump and a receiver tank, for it is not necessary to use high-pressure air for this purpose. When colors are desired on case-hardened work, the treatment in quenching is exactly the same as that previously described except that air is pumped ...
— The Working of Steel - Annealing, Heat Treating and Hardening of Carbon and Alloy Steel • Fred H. Colvin
... of a variety of accessories for internal combustion engines, including air pump for the Clerget engine, which is completely manufactured and assembled by women, largely under women supervision; and magnetos, a very important and accurate industry, before the war largely in German hands, of which women now undertake ...
— Women and War Work • Helen Fraser
... and wholesome; insomuch that it is often bought from ships which have been to India and back. Putrid water at sea is purified or rendered comparatively sweet by forcing streams of air through it by what is called an air pump. Water may be preserved sweet on long voyages, or restored when putrid, by ...
— A General History and Collection of Voyages and Travels, Volume VII • Robert Kerr
... operate under conditions analogous to those under which the same parts of a steam engine do. The air pump sucks and forces nothing but cold air, and nothing but cold air passes through the distributing slide valve. The pump and valve are therefore rendered very durable. The piston and cylinder, at the points ...
— Scientific American Supplement, No. 623, December 10, 1887 • Various
... starboard and port sides respectively for driving each screw. There are four high pressure cylinders, 36 in. in diameter; four intermediate cylinders, 52 in.; and four low pressure cylinders, 80 in.; with a stroke of 4 ft. Each set of engines has an air pump 33 in. in diameter and 2 ft. stroke, and a surface condenser having 12,800 tubes and an aggregate surface of 2250 square feet, the length of the tubes between the tube plates being 9 ft. There is also in each compartment ...
— Scientific American Supplement, No. 832, December 12, 1891 • Various
... e, linseed oil is introduced into the vessel, B, until the latter is half full, and, after this, e is closed and the worm, S, is allowed to raise the temperature to between 60 deg. and 80 deg.. Then the cock of the tube, d, which communicates with an air pump, is opened, and the pressure is diminished to about 730 mm. of mercury. At this moment the oxidizing apparatus are put in communication with an induction bobbin that is interposed in the circuit of a dynamo, while through the tube, n, there is made to enter a mixture of equal parts (in volume) ...
— Scientific American Supplement, No. 492, June 6, 1885 • Various |
