Abstract: A cable clamp moulded in one piece from plastics material comprising first and second clamping limbs (11, 11') extending in side-by-side relation and joined at respective opposite ends by first and second tool bearing portions (12, 13). Each clamping limb (11, 11') comprising a rigid portion (14, 14') joined to the first tool bearing portion (12) by a web hinge (16 or 16') at one end of the limb (11 or 11') and joined by another web hinge (19 or 19') to a flexible wire engaging portion (15, 15') adjacent the second bearing portion (13) such that on urging the tool bearing portions (12, 13) together, the clamping limbs are changed from erect to collapsed clamping conditions with deformation of the wire engaging portions (15, 15') into clamping engagement with wires. A latching tongue 25 is received in a latching eye (36) to latch the cable clamp in the clamping condition.

Abstract: A vertically and horizontally movable arm structure for fluid transfer is provided with a tubular member for linear oscillation of a holder for a fluid probe; the tubular member can additionally form a conduit for lead wire connected to the fluid probe. Sensors for the vertical position of the arm and the conductor leads from the sensors can be separately mounted and routed so that the sensor leads do not kink or interfere with the motion of the arm.