Abstract: An abrading tool for finishing surfaces comprising, in one embodiment (5), one or more sanding fingers (20) keyed to a rotatable disc (15). A biasing spring (65), disposed proximate each sanding finger (20), tends to force the sanding fingers (20) towards the surface to be finished by biasing the sanding fingers (20) towards a position which is vertical or substantially perpendicular to the disc (15).

Abstract: An abrading tool having, in one embodiment (280), at least one abrasive member (20) carried by a rotatable disc (285). A flexible elastomeric biasing spring (290) imparts a force upon the abrasive member (20) to urge the abrasive member (20) to a position which is substantially perpendicular to the disc (285). An adjuster (295) modifies the biasing force by changing the position at which a transverse bar (340) abuttingly contacts the biasing spring (290). The adjuster (295) eliminates the necessity of changing the rotational speed of the disc (285), abrasive characteristics of the abrasive member (20) or feed rate of the tool (280) in order to modify the sanding performance characteristics of the tool (280).

Abstract: The invention is embodied in a method and apparatus for fabricating an improved solar cell module. The apparatus includes a supply drum for feeding a flexible strip having deposited thereon etched electrical circuitry, a supply drum for feeding into overlying engagement with the flexible strip a flexible tape having a pair of exposed tacky surfaces, and a plurality of rams for receiving and depositing a plurality of solar cells in side-by-side relation on an exposed tacky surface of the tape in electrical contacting engagement with the etched circuitry.