Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1979-08-31
1985-12-03
Crane, Daniel C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
415217, 415219R, 29446, B21K 300
Patent
active
RE0320420
ABSTRACT:
The stator blades of a stage of an axial flow turbo machine are assembled in an arcuate series, as by insertion of the journals at the outer ends of the blades in the stator housing. A one-piece arcuate inner shroud ring is formed with aperture spaced circumferentially comparable to the spacing of the inner ends of the blades in the series. The diameter of the apertures exceeds the diameter of the blade journals. Force is applied to the ends of the ring to control or bow the same sufficiently to permit insertion of the contracted ring into the series of blades. Upon insertion of the ring, the contracting force is relieved, permitting the ring to expand to normal contour whereby the inner journals of the blades become positioned in the apertures of the ring. Thereafter annular bearings are inserted in the space between the journals and the bores of the apertures.
REFERENCES:
patent: Re12317 (1905-02-01), Fullager
patent: 839243 (1906-12-01), Wilkinson
patent: 1158755 (1915-11-01), Weaver
patent: 1621002 (1927-03-01), Dimberg
patent: 2357139 (1944-08-01), Seme
patent: 2640679 (1953-06-01), Wheatley et al.
patent: 2856118 (1958-10-01), Smith
patent: 2931412 (1960-04-01), Wing
patent: 3071853 (1963-01-01), Price et al.
patent: 3108783 (1963-10-01), Foust et al.
Carroll Alexander A.
Sheilds J. Rodger
Crane Daniel C.
Elliott Turbomachinery Company, Inc.
Hayter Robert P.
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