Measuring and testing – Rotor unbalance – In situ
Patent
1988-11-22
1989-11-28
Chapman, John
Measuring and testing
Rotor unbalance
In situ
254 93H, 254122, G01M 128, B66F 500
Patent
active
048829323
ABSTRACT:
A lifting unit with an incorporated piezoelectric transducer comprises an extendable trolley (1-4) with a frontwardly tapered plan profile and is upperly provided with a flat vertical compass structure (5) which is symmetrically disposed about the main axes of the underlying trolley (1-4) and has its arms converging towards a horizontal box member (6) containing a piezoelectric transducer (15), at which the arms are linked together and at which there is provided, above the box member (6) a positionable lifting and support saddle (21) which is disposed transversely to the flat vertical compass structure (5).
REFERENCES:
patent: 2567681 (1951-09-01), Schwartz et al.
patent: 3483756 (1969-12-01), Merrill
patent: 3754447 (1973-08-01), Turton-Smith et al.
patent: 3892132 (1975-07-01), Coton
patent: 3903746 (1975-09-01), Goebel
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