Reynolds, Osborne, 1842-1912, Brightmore, Arthur William, 1864-, Moorby, William Henry, 1872- · Cambridge [Eng.] The University Press · leaf 161
luid to enter, the fluid escaping from the casing through the holes or open-ings in the ends of the casing. The spiral plates may be made moveable, sothat the size of the passages may be adjusted, and the fluid may be intro-duced between them in any convenient manner. The accompanying sheet of 144… … ^^?^