Abstract: A composition is disclosed for maximizing electrical contact between contact surfaces, consisting essentially of a volatile cleaning agent and an oxidation occluding agent. Also disclosed are applicator devices and methods for cleaning and protecting electrical contact surfaces utilizing this composition.

Abstract: A method for maximizing electrical contact between contact surfaces, consisting essentially of a volatile cleaning agent and an oxidation occluding agent. The method uses an applicator device for cleaning and protecting electrical contact surfaces utilizing this composition.

Abstract: A method and machine for recovering silver and polyester from exposed photographic X-ray film of the type having a polyester base coated with a sheath of polyvinyladine chloride and a photosensitive silver emulsion. Sheets of the film are fed through baths of hot caustic which successively remove the silver emulsion and deposit it as a sludge from which the silver is recovered and remove the polyvinyladine coating to permit the polyester to be recovered in a commercially acceptable pure form. Where the film sheets may include some acetate based film, the apparatus will distinguish between the polyester and acetate and discard the acetate bases as scrap, after the silver emulsion has been removed.

Abstract: A loading device and method for loading a muzzle loading gun. The device comprises an elongated attachment with a longitudinal bore across which is placed a frangible septum. The bore above the system is loaded with a premeasured powder charge and a projectile with wadding (if necessary). The attachment is placed on the end of the muzzle of the gun, the septum is sundered by sundering means within the attachment, the powder passes by the sundered septum and the projectile is rammed into position by a ram rod inserted through the upper open end of the bore of said attachment.