Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1978-10-18
1981-04-21
Hall, Carl E.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29 33T, 29727, 228 7, 228183, 408 1R, 408 3, B23P 1526
Patent
active
042624029
ABSTRACT:
A servicing machine for a steam generator is accurately set up in the generator channel head with a pivoted arm mounted for rotation in a plane parallel to the tubesheet. The angular position of the arm, the longitudinal position of a carriage mounted on the arm and the vertical position of a platform on the carriage are remotely controlled to maneuver a probe used in mapping the precise location of the thousands of holes in the tubesheet. Various operations are then performed at each precise hole location by tools carried by the arm mounted carriage to prepare for installation of new tubing. The operation of a pair of remotely controlled pivoted arms, one on each side of the channel head divider plate, is coordinated to automatically position the ends of U-shaped tubes in corresponding holes in the tubesheet on opposite sides of the divider plate and to secure the same in place.
REFERENCES:
patent: 2922332 (1960-01-01), Lentz et al.
patent: 3598978 (1971-08-01), Rempert
patent: 3633011 (1972-01-01), Bederman et al.
patent: 3764775 (1973-10-01), Hasslinger et al.
patent: 3898440 (1975-08-01), Fukuma et al.
patent: 3973859 (1976-08-01), Huber et al.
patent: 4011437 (1977-03-01), Hohn
patent: 4018346 (1977-04-01), Leshem et al.
Castner Raymond P.
Cooper Jr. Frank W.
Abeles Daniel C.
Hall Carl E.
Westinghouse Electric Corp.
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