Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1984-10-03
1986-01-28
Rosenbaum, Mark
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29 235, 29557, 29DIG26, 415184, 415186, 415191, 415217, B23P 1502
Patent
active
045661669
ABSTRACT:
A method for manufacturing stay rings for a family of hydraulic turbine installations is disclosed. The stay ring comprises a plurality of stay vanes axially extending between two concentric ring members. Stay vanes are formed from flat plates and aligned circumferentially on the rings with radially outer leading edges presenting an intake angle acceptable for any turbine installation within a predetermined family of turbine installations. The vanes are sized such that their length measured from the leading edge to a trailing edge is such that the vane presents a discharge angle equal to a predetermined minimum discharge angle for the family of turbine installations for a given turbine installation. A desired discharge angle corresponding with a desired power output is predetermined and the trailing edges of the stay vanes are trimmed an amount sufficient for the stay vanes to present the desired discharge angle.
REFERENCES:
patent: 1900144 (1933-03-01), White
patent: 2977088 (1961-03-01), Buchi
patent: 3005618 (1961-10-01), Buchi
patent: 3176960 (1965-04-01), Sproule
patent: 3440969 (1969-04-01), Kondo
patent: 4473931 (1984-10-01), Komatsu
Allis-Chalmers Corporation
Conrad Timothy R.
Rosenbaum Mark
Streich Arthur M.
Wallace Ronald S.
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