. Appleton's dictionary of machines, mechanics, engine-work, and engineering. rotary steam-engine and pump.—Within a cylindrical case a solid or hollow drum A,Fig. 3136, is made to revolve, the sides of which are fitted to move close to those of the case. Threeprojecting pieces or pistons, of the same width as the drum, are secured to or cast on its periphery •they are at equal distances from each other, and their extremities sweep close round the inner edgeof the case, as shown in the figure. The periphery of the drum revolves in contact with that of asmaller cylinder B, from which a portion
. Appleton's dictionary of machines, mechanics, engine-work, and engineering. rotary steam-engine and pump.—Within a cylindrical case a solid or hollow drum A,Fig. 3136, is made to revolve, the sides of which are fitted to move close to those of the case. Threeprojecting pieces or pistons, of the same width as the drum, are secured to or cast on its periphery •they are at equal distances from each other, and their extremities sweep close round the inner edgeof the case, as shown in the figure. The periphery of the drum revolves in contact with that of asmaller cylinder B, from which a portion is cut off to form a groove or recess sufficiently deep to re-ceive within it each piston as it moves past. The diameter of the small cylinder is just one-third thatof the drum. The axles of both are continued through one or both sides of the case, and the openingsmade tight with stuffing-boxes. On one end of each axle is fixed a toothed wheel of the same diam-eter as its respective cylinder; and these are so geered into one another, that when the crank attached
Size: 1595px × 1567px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
