Air shaft

Details Air shaft Air shaft

B - Operations, Transporting

65

H

242/74.1

B65H 75/18 (2006.01) B23B 31/40 (2006.01) B65H 75/24 (2006.01) F16D 25/065 (2006.01)

Patent

CA 1128912

ABSTRACT OF THE DISCLOSURE An expansible shaft including a hollow axially-extending body and operatively coupled core engaging and retracting sections within the body. The core engaging section includes a core engager movable relative to the body in a direction generally perpendicular to the axis of the body and bias- ed towards a core engagement position in which it projects beyond the wall of the body; and the retracting section includes an actuator arranged to over- come the bias and move the core engager radially inwardly from its core en- gagement position.

330102

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