Utility machinery and associated control arrangements

Details Utility machinery and associated control arrangements Utility machinery and associated control arrangements

2006-04-11

2008-12-16

Siconolfi, Robert A (Department: 3657)

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Adjusted by power from pulley drive train

C474S029000, C474S018000

Reexamination Certificate

active

07465244

ABSTRACT:
A power transmission device for utility machinery is disclosed, the device including:a) a sleeve supporting a first sheave member having a first face;b) a hub received through said sleeve and moveable axially in relation thereto, said hub supporting a second sheave member having a second face that opposes said first face such that said first and second faces define therebetween a groove adapted to receive a belt and relative axial movement between said sleeve and said hub being adapted to vary at least one of pitch diameter and grip imparted to said belt from said sheaves; andc) an actuator mechanism adapted, through control of relative axial displacement between said sleeve and said hub, to vary at least one of said pitch and grip, said actuator mechanism comprising a control rod disposed substantially perpendicularly to the line of action of said axial displacement and connected to said hub through a link mechanism, said control rod being adapted to rotate and said link mechanism being adapted to translate rotation of said control rod into linear movement for relative axial displacement of said hub.

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