Bonas Machine Company Limited

Mike Wardle

A motive assembly for moving a plurality of warp yarns ( ) in a loom between upper and lower shed positions, the motive assembly including a plurality of selectively controllable ultrasonic cyclic motors ( ), each of which is drivingly connected to one or a group of said warp yarns ( ) for moving the warp yarn(s) ( ) between upper and lower shed positions.

Motive drive for warp selection

An electronic jacquard including a plurality of elongate heald hooks ( ) movable longitudinally between upper and lower shed positions and a plurality of electrically operable selection devices ( ) for co-operation with the heald hooks ( ) for selectively retaining the heald hooks ( ) at one of said shed positions, each selection device including a latch ( ) movable between a latched position and a non-latched position, the latch ( ) when at said latched position being capable of latching engagement with the heald hook ( ) in order to retain it at said shed position, and an ultrasonic cyclic motor ( ), preferably a piezo-electric motor, drivingly arranged to move the latch ( ) from its non-latched position to its latched position.

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County Durham, United Kingdom

Mike Wardle