Abstract: The tool gripping and releasing devices carried by the indexing turret head of a radial component insertion machine are air operated and sealed connections are selectively established between stationary and rotating air transfer rings. Supplied pressurized air leaves the stationary air transfer plate via blind bores and then forces its way through small apertures in gaskets which close these blind bores. The gasket material is deformed into sealing engagement with the rotating air transfer ring establishing a connection with the air inlet thereof.

Abstract: A bonding wedge (1) for an ultrasonic bonder, in particular an aluminium thick wire bonder, with a wire guide in the form of a through-passage (3) extending in the wire direction obliquely from above to the pressing face (2). A plastics sleeve (11) through which the bonding wire (4) is guided is introduced in the through-passage (3) to reduce significantly the frictional resistance of the bonding wire (4) in the region of the through-passage (3) and to reduce significantly the abrasion of aluminium.

Abstract: Apparatus for handling electronic components comprises a pick-up head 16 including a housing 74 and a tool comprising a elongated support member 80 (providing pick-up mechanism 84,98) mounted in the housing 74 for rotation about an axis D of the head 16 and for axial movement. A sleeve 122 and member 124 are rotatable with the tool but axially movable relative to the member 80. Clutch mechanism comprises a clutch pad 130 between a surface 132 of the housing 74 and a surface 128 of the member 124 and a spring 134 urging the surfaces 128, 132 and pad 130 together, locking the tool against rotation. Axial pressure on the sleeve 122 disengages the clutch permitting rotation of the tool which is effected through the sleeve 122. Several heads 16 mounted on a carousel 14 for movement from a pick-up station 26 through orientation stations 42, 48, to a placement station 50.