Abstract: A pair of filter cloths including a feed passage connector for a plate-type filter press is disclosed herein. The filter cloths include first and second tubular members each having opposed first and second free ends and through bores extending continuously from the first free end to the second free end of each of the first and second members. The first free end of the first member is connected to the first filter cloth with the respective cylindrical bore in coaxial alignment with the first feed opening and the second free end of the second member is connected to the second filter cloth. A third tubular member is provided having opposed third and fourth free ends and a radially outer surface and a central bore defining a feed passage. The radially outer surface of the third member is snugly received coaxially within the through bores of the first and second members to sealingly interconnect the first member to the second member.

Abstract: An incandescent mantle tie cord comprises a continuous multifilament first core of a refractory fiber, a second core of another continuous multifilament yarn and an outer sheath of staple fibers wrapped about said first and second cores.

Abstract: A conveyor surface composed of a single belt, a plurality of belts or of other structures such as a plurality of panels or other moving surface, or a fixed surface over which sheets of non-conductive material as paper or textiles can be caused to travel or can slide. The surface is composed of two sets of areas, intermingled in one of several ways, the two sets of areas being of material of opposite electrostatic properties (spaced apart on the triboelectric scale) so that when a sheet is conveyed the two sets of areas develop opposite electrostatic reaction to the sheet to give an overall zero or near-zero electrostatic resultant force on the sheet or other item being conveyed.