Abstract: An assembly for making accurate mixtures of liquid components and feeding that liquid mixture to the inlet port of a sprayer. The assembly includes a container of stiff polymeric material comprising a side wall with a frusto conical inner surface, and a bottom wall at the bottom end of the side wall opposite a top end of the side wall that defines an opening into a cavity in the container. A flexible liner positioned within the cavity in the container has an outer surface corresponding in shape to the inner surface of the container, an inner surface defining a cavity in the liner, and an annular lip along the top end of the side wall defining an opening into the cavity in the liner.

Abstract: A hanger comprising a base having a supported surface adapted to be positioned along a generally vertical surface, and an elongate peg having one end mounted on the base with a portion of the peg projecting from an outer surface of the base opposite its supported surface generally at a right angle with respect to the supported surface of the base. The peg has an axially extending surface portion adapted to be positioned uppermost when the supported surface of the base is positioned along a generally vertical surface, which axially extending surface portion restricts free movement axially of the peg of sheets of paper around and hanging on the peg. That axially extending surface portion can be defined by a layer of adhesive on the peg or by closely spaced sharp edges on the peg. Such sharp edges could be on screw threads around the peg, ridges extending transversely across the peg, serrations formed on the peg, or by abrasive granules adhered along the peg.

Abstract: An sanding/polishing apparatus which has a motor including a body and a working head which is mounted on the body for sanding/polishing movement relative to the body and to a surface to be treated and includes means for attachment of an abrasive or polishing material to the working head. A feed line is provided in the motor for directing a cold gas flow through the body and working head to the surface to be treated, and a cold gas flow is fed to that feed line through a vortex tube mounted on the body that significantly reduces the temperature of the air delivered to the feed line.