Abstract: An adaptor for a honey extractor which is normally manually operable by hand cranking a drive shaft allows it to be operated by a power drill. The adaptor engages the drive shaft axially of the honey extractor after removal of the handle which is used fo manual operation to connect the drive shaft to a power drill. The adaptor is conveniently a socket to engage an end of the drive shaft,the socket having a prong for insertion in the chuck of a power drill.

Abstract: Modular display booth units are made from an upstanding bent sheet body portion located at its top and bottom in respective depending and upstanding lips of counter top and tray portions. Inside the body portions, rails extend from side to side. Hooked ends latch into latching apertures in the side wall and the side wall of any adjacent unit to link them together. Special angled joining units are provided to allow the units to be joined to form elongate assemblies of varying configuration.

Abstract: A non-releasable mechanical join useful for permanent joins of plastics material cartons is formed by a row of a plurality of engagement tabs interlocked in a complementary row of slots. The engagement tabs have heads able to pass through the slots in one direction but unable to return in the other direction. The tab heads may be formed as arrowheads, the barbs of which act against edges of the slots are convexly arcuate towards the approaching arrowheads. This may help to provide secure engagement. The greater number of tabs and slots, the greater may be the permanence of the join.

Abstract: A system is provided for tracking the three-dimensional position of an object within a three-dimensional region by triangulation techniques to generate signals corresponding to such three-dimensional positions. The signals may be used to drive a music synthesizer. Triangulation may be by the use of at least three spaced apart ultrasound emitters cooperating with ultrasound receivers located on a body moving in the three-dimensional region. The position of each ultrasound receiver is calculable by triangulation from data from ultrasound pulses received by the receiver from the emitters. A sound map may be made of the region so that similar signals may drive the synthesizer differently for different sub-regions.

Abstract: The invention concerns a multi function steering mechanism having a non-rotatable display panel located within the rim of the steering wheel. Wires of a wiring truss to the display panel are continuous through a hollow non-rotatable support member for the display panel. A rotatably steering link is off set from the support shaft and geared to a cylindrical gear hub of the steering wheel which is rotatably supported on either the support column or onto an outer housing for the mechanism. The support member, steering link and wheel, with or without the actual display panel, may be provided as a replacement unit for a conventionally mounted steering wheel.