. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . ine consists, as its name implies, ofa system of parts contained within a sphere, and so united as to enable them under the actionof steam-pressure to impart rotary motion to a shaft. It is an engine that seems peculiarlysuitable for high-speed direct driving. It is tlie invention of Mr. Beauchamp Tower, to whomthe idea of its construction originally occurred through watching the relative motions of thethree parts c
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . ine consists, as its name implies, ofa system of parts contained within a sphere, and so united as to enable them under the actionof steam-pressure to impart rotary motion to a shaft. It is an engine that seems peculiarlysuitable for high-speed direct driving. It is tlie invention of Mr. Beauchamp Tower, to whomthe idea of its construction originally occurred through watching the relative motions of thethree parts connwsing a universal joint. Geometrical Construction: Considered geometrically, the three elementary moving partsof which the engine is composed are, a pair of quarter-spheres A and B. with a circular diskPoi infinitesimal thickness interposed between them, the diameter of the disk being the sameas that of the sphere of which they are sectors. The straight edges of the sectors are hingedon opposite sides of the disk along diameters at right angles to each other, as illustrated inthe diagram, Fig. 1, in which the disk P, being seen edgewise, appears as a straight edge Fio. 1. Fig. 5
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
