Abstract: The invention relates to a sheeted roll (100), an apparatus (300) for sheeting such a roll (100) and a method for sheeting a roll. According to the invention, the sheeted roll (100) comprises a roll core (110) having at least one sheet of material removably attachable thereon and subsequent sheets of material then being removably attachable on previous sheets of material on the roll core (110), said at least one sheet and subsequent sheets of material providing an adhesive surface holding the sheets to one another on said roll core (110). The sheeted rolls according to the invention are used, in particular, for cleaning surfaces or for dispensing photosensitive emulsions onto a circuit board.

Abstract: A contact cleaning machine for removing particulates and other undesirable debris from the surfaces of articles moving along a curved path under the cleaning machine, without disturbing the orientation of the articles which cannot be clamped against movement. Cleaning is performed by a roller (22) which is mounted in the machine to roll across the tops of articles as they pass underneath. The peripheral surface (28) of the roller is coated with a tacky adhesive to lift off the undesirable particles. To avoid the roller applying differential forces to the article, the roller is made conical and convergent towards the axis of curvature of the path followed by the article. The avoidance of differential forces on the unclamped articles eliminates any tendency for the cleaning roller to turn the articles.

Abstract: A laminate such as a PCB material is formed by stacking resin impregnated prepreg sheets (10) between copper foils (12), applying heat and pressure around the periphery of the stack to form an edge-sealed unit, and subjecting a number of such units to a lay-up process in a separate clean area into which they are introduced via surface-cleaning means.

Abstract: Apparatus and method for cleaning conveyor systems, particularly for removing dust and other contaminants from optical processing equipment. A rigid or flexible sheet is coated on one or both faces with a tacky elastomer which is preferably a silicone. The sheet is moved over or through the conveyor system in place of a conveyed article, so that contaminants adhere to the elastomer and are ultimately removed from the conveyor along with the cleaning sheet. The invention is particularly applicable to cleaning conveyors transporting photographs and photo-tools, and to cleaning reprographic equipment incorporating paper transport rollers, eg photocopiers, facsimile machines, and desk-top printers.