Improvements in the Construction of Guide-blades and Vanes for Turbine Motors.

Abstract

Abstract 6640. Belliss & Morcom, and Morcom, R. K. March 19. Elastic-fluid turbines.-Relates to making and fixing blades for turbine rotors and stators. Thin metal stampings are bent so as to form the front and back plates or surfaces a, b, Figs. 1, 2 and 9, of two'adjacent blades connected by a foot c, the plates being also united by one or more thin distance-pieces g; the back plate may have a strengthening-rib b<2>. The blades are formed by assembling a number of these blade elements, the feet being secured in undercut grooves by bifurcated retaining-blocks e and a stringer f, which spreads the fangs and flattens the arched foot. The widths of the front and back plates may vary so that the edge of the blade, which may be sharpened, may have one or two thicknesses of metal. Composite blade elements are stamped out of a composite metal sheet, for example from a steel strip A, Fig. 7, and a copper strip B welded or brazed together so that the stamping has an erosionresisting front plate a and a bendable back-plate b and foot c.

Inventors

No inventors recorded.

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