Abstract: This invention relates to a fluid pressure device and more particularly to a fluid pressure device adapted to be attached to a paint roller applicator for supplying paint from a container to the roller applicator.

Abstract: An atomizer comprises a cylinder defining a pump chamber and containing a piston. The chamber communicates with an atomizer nozzle by a valve comprising a valve member which is opened at a predetermined liquid pressure during operation of the piston to pressurize the liquid in the pump chamber. Liquid is fed into the pump chamber through a conduit which projects upwardly into the cylinder. A sleeve rigid with the valve member or the piston engages the conduit during operation of the piston to prevent communication between the conduit and the pump chamber.

Abstract: The feed mechanism for a printing machine in which printing ink is fed into the recessed design of an intaglio printing plate includes a cylinder open at its upper end and communicating at its bottom with the recessed designs. A piston is housed in the cylinder, the lower end of which piston forms a chamber at the bottom of the cylinder. The piston rod extends above the cylinder and carries a support member at its upper end, the support member carrying a head. A second cylinder rests upon the top of the first cylinder and receives the head which is slidable therein within limits. A spring is interposed between the head and the bottom of the second cylinder. The piston and piston rod have a bore forming a second chamber provided at its upper end with an ink supply inlet. A hollow relief piston is slidable in the lower end of the bore communicating with the second chamber and communicating through inlet openings with the first chamber.