Commonwealth Scientific and Industrial Research Organisation

Fisher & Paykel Limited

Warren J Hancock

Trevor Stanley Bird

Robert Brunswick

Mark Andrew Sprey

Ian J McInnes

Stephen R Wilson

A feed transport device for moving a feed within a non-planar focal surface defined by a satellite communications antenna, comprises first and second non-linear rails, and a feed transport unit comprising a feed support member for supporting the feed, and first and second slidable members slidably mounted on said first and second rails respectively to permit each slidable member to slide along the length of its respective rail, wherein one end of the feed support member is pivotally attached, not necessarily about a single pivot axis, to the first slidable member, the other end of the feed support member is both slidably and pivotally, again not necessarily about a single axis, attached to the second slidable member, and the first and second rails are shaped and positioned to maintain the feed in, or near to, said focal plane during movement of the feed support member along the first and second rails. The feed support is provided with transverse sliding rail and a gimbal allows rotation about two perpendicular axes. The shape and position of the first and second rails and the orientation of the feed support member are chosen so as to ensure that the minimum of adjustment of the feed by the servos is required as the feed is moved along the length of the focal surface.

Feed movement mechanism and control system for a multibeam antenna

A laundry machine having an agitator shaft rotatable backwards and forwards by an electronically controlled electric motor when in a washing mode and continuously in one direction when in a spinning mode has the agitator shaft connected to an interconnecting member spaced radially from its axis engageable with a connector for a concentric spin tub shaft to carry the spin tub with it when in the spin mode. The connection between the agitator rotating system and the spin tub rotating system are effected through an energy absorbing device which absorbs energy resulting from the change in relative speeds necessary to achieve speed equalization between the two systems.

Speed equalizing means and/or laundry machines incorporating the same

Growing community of inventors

Melbourne, Australia

Warren J Hancock