GB199180A - Improvements in and relating to methods of manufacturing turbine elements - Google Patents

Abstract

199,180. British Thomson - Houston Co., Ltd., (General Electric Co.). April 4, 1922. Blades and spacing blocks are tightly assembled in a groove in a member which is subsequently mounted on the rotor and the edges of thte groove are turned over the spacing blocks. The blades 14, Fig. 3, are formed with tenons 16 to enter holes in the shrouding strtips and have projections 14<a> formed with a suitable tool and adapted to bite into the edges of adjacent spacing members 15, Fig. 4, when these are hammered tightly into place in a groove. 11 in a member 10 adapted subsequently to be finished to a T-section and secured to a rotor as shown in Fig. 9. The edges 13, Fig. 2, of the groove 11 are turned over the spacing blocks and the whole united by fusion of metal preferably by the method described in Specification 158,565 or by any other method. A shrouding strip 32, Fig. 9, is mounted by turning over the tenons on the blades or by welding shorter tenons in the holes in the shrouding strip. The grooved member 10, Fig. 2, and the assembled blades may be in segmental form or in complete ring form for attachment to a rotor.