One-piece locking and releasing hub actuated with thrust-multipl

Details One-piece locking and releasing hub actuated with thrust-multipl One-piece locking and releasing hub actuated with thrust-multipl

1977-05-09

1979-03-06

Kundrat, Andrew V.

Joints and connections

Split end with laterally movable opposed portions

With separate force-applying means

403354, 403373, 85 1R, F16B 202

Patent

active

041428110

ABSTRACT:
Hub which may be integral with a pulley, gear, sprocket, etc. has keyhole slots extending radially from its bore into a hub body lengthwise of the hub, with a perpendicular screw and sleeve screw across said slots to compress them and reduce the hub bore opening to clamp the hub onto a shaft, and to expand such slots to release the hub from the shaft; a headless screw immobilized in threads below the slot extends into the coaxial sleeve screw above the slot having external and internal threads of different but proximate pitch, rotation of which applies greatly multiplied thrust upon the screw to push or pull the hub body below the slot; other embodiments include an internal annular slot in the hub bore compressed by an axially placed screw assembly or screw along, and diametral slots similarly compressed and expanded, and a dual thread screw with differential pitch.

REFERENCES:
patent: 1447448 (1923-03-01), Walch
patent: 2042783 (1936-06-01), Hall
patent: 2999394 (1961-09-01), Firth
patent: 3267519 (1966-08-01), Albert
patent: 3281170 (1966-10-01), Kaplan
patent: 3445130 (1969-05-01), Obenshain
patent: 3461769 (1969-08-01), Brosseit
patent: 3724367 (1973-04-01), Pasinski
patent: 3876318 (1975-04-01), Crispell

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