Hydraulic cut-off press

Details Hydraulic cut-off press Hydraulic cut-off press

2007-07-17

2007-07-17

Crane, Daniel C. (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

With cutting of work or product

C072S181000, C072S448000, C083S559000, C100S290000, C248S656000

Reexamination Certificate

active

11038209

ABSTRACT:
A hydraulic cut-off press includes a base, a body vertically movable along vertical tracks at the base, a plurality of raisers provided at the body in four corners, each raiser having a holder base, a raiser screw vertically mounted in the holder base and fixedly connected to the base, a transmission gear set mounted inside the holder base and meshed with the raiser screw, and an axle extended out of the holder base, a transmission system formed of transmission shafts and couplings for coupling the axles of the raisers to one another for synchronous rotation, and a motor for rotating the axle of the first raiser to move the raiser screws of the raisers to move the body to the desired elevation relative to the base.

REFERENCES:
patent: 368672 (1887-08-01), James
patent: 434011 (1890-08-01), Wrigley
patent: 2321486 (1943-06-01), Holt
patent: 3111054 (1963-11-01), Tishken
patent: 3239169 (1966-03-01), Sloyan
patent: 6182492 (2001-02-01), Raffin et al.
patent: 6378348 (2002-04-01), Katsube
patent: 6474125 (2002-11-01), Denis et al.

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