Abstract: The compounds of the invention are represented by the following general structure 1

Abstract: A mounting means for connecting a broom handle (18) to a broom head (10). The mounting means includes a bracket (15) non-rotatably connected to the broom head (10). The bracket is also pivotally connected to said handle (18) about an axis (19) which is substantially at right angles to the main axis of the broom head (10) and is angled with respect to the axis of the handle (18) and broom head (10) so that greater manoeuvability of the broom is achieved.

Abstract: A multiple site probe for simultaneous probing of multiple chip site clusters of pads. The multiple site probe assembly includes a mounting plate having a plurality of groups of adjustably mounted probes thereon. A plurality of cams cooperate with cam followers associated with individual groups of probes, each of the cam and cam followers having a displacement which is dependent upon its distance from a predetermined and fixed reference relative to the mounting plate. An actuator is connected to the cams so as to effect simultaneous actuation of the cams and to allow for differential displacement of each group of the groups of probes so as to compensate for accumulated tolerances and/or shrinkage of the substrate.