Method and apparatus for treating the surface of a synthetic elastomer workpiece to improve its ability to be coated or bonded in which the surface of the workpiece is exposed to and reacted with products generated by electrolysis at an anode in a body of aqueous electrolyte to form a surface of reacted elastomer integral with the elastomer of the workpiece. The apparatus includes an anode and a cathode mounted for immersion in a body of electrolyte, a source of electricity to create a potential...

A surface thermocouple assembly including a metal sheath having thermocouple conductors extending therethrough in spaced relation from each other and from the sheath by electrical insulating material, an opening in the sheath wall at the hot junction end and through which the conductors are extended, a ceramic plug receiving the conductors and mounted in the opening, a fusion weld of the conductors outside the plug, and a V-shaped pad with a knife-shaped edge integrally formed at the junction en...

A surface washer has a horizontal pipe member fitted with spaced nozzles and rotably attached at each end to a support movable on casters in all directions. At least three casters are employed to obtain a horizontally stable support and preferably four, with two casters supporting each end of the horizontal pipe. A hollow handle is attached to and communicates interiorly with the pipe member at one of its ends, the other end being fitted with a water hose connection. Preferably each caster is pi...

A surface thermocouple assembly including a metal sheath having thermocouple conductors extending therethrough in spaced relation from each other and from the sheath by electrical insulating material, an opening in the sheath wall at the hot junction end and through which the conductors are extended, a ceramic plug receiving the conductors and mounted in the opening, a fusion weld of the conductors outside the plug, and a V-shaped pad with a knife-shaped edge integrally formed at the junction en...

This invention relates to a paint applicator comprising an open-sided chamber adapted to slidably adhere to a surface, the open side being bridged by such surface. Means are provided for supplying paint to the chamber and the chamber is provided with a trailing panel which acts as a paint spreader when the applicator is moved relative to the surface. The panel may be urged into contact with the surface by either suction or magnetic forces and is particularly suited to painting underwater surface...

A machine for engraving surfaces which may be cylindrical, tapered or curved from a pattern which lies in a flat plane. The article to be engraved is rotated about its longitudinal axis at different speeds by frictional contact between a sheave and a stationary rod as the sheave and article are translated in direction parallel to the longitudinal axis of said rod.

A surface for ice skating purposes comprised of a multiplicity of discrete flat components formed of extruded resinous material with the same being edgewise interlocked. A lubricant of water and a glycol is applied to said surface for heat dissipation purposes, and promoting slickness.

Apparatus for measuring the surface tension of a liquid contained in a flow-through pressure vessel (60) includes a pair of tubes (50,51) having small and large orifices positioned below the surface of the liquid. A source (10) provides gas through a pressure regulator (15) and a flow regulator (30) to the tubes. The bubble rate from the orifices is controlled by needle valves (40,41) and is made independent of the pressure in the vessel by the flow regulator (30). Differential pressure transduc...

A steam surface condenser has its tube bundle arranged in a manner so as to have an outer zone of tubes for receiving cold water and surrounding an inner zone of tubes containing warmer water so that most of the condensing of the steam is in the outer zone. A gas cooling section is located in the outer zone adjacent the upper end of the tube bundle. Condensate trays are provided adjacent the cooling section at spaced points along the length of the tube bundle for receiving condensate. Conduits a...

Resistivimeter device for measuring the surface resistance of a structure coated with an inner resistive layer and an outer insulating superficial layer. This device comprises a pick-up to be placed on the structure surface and formed of a central cylindrical electrode, two intermediary annular electrodes and an outer annular electrode coaxial with the central electrode. A supply alternating voltage is applied between said central and outer electrodes, and the current thus produced is applied to...