LUBRICATING APPARATUS-NAMELY, VALVES, PIPE COUPLINGS, PIPE FITTINGS, HOSE AND HOSE FITTINGS FOR USE IN LUBRICATING SYSTEMS, LUBRICATING NIPPLES, LUBRICATION FITTINGS ADAPTED TO BE SECURED TO MACHINES AND THE LIKE, SWING ARMS AND BRACKETS FOR HOSES AND PIPES USED IN LUBRICATING SYSTEMS, GREASE GUNS, MECHANICAL LUBRICATORS, LUBRICANT COMPRESSORS, LUBRICANT PUMPS, REELS FOR HOSES IN LUBRICATING APPARATUS, AND LUBRICATING SYSTEMS COMPRISING FITTINGS, CONNECTIONS, AND LUBRICANT PUMPS OR COMPRESSORS; OIL SPRAYING MACHINES; [ APPARATUS FOR FLUSHING USED LUBRICANT FROM GEAR CASES; ] MECHANICAL APPARATUS FOR EMPTYING GREASE CONTAINERS; [ AUTOMATIC REFUELING NOZZLES FOR FILLING LIQUID FUEL TANKS; ] LIFTS FOR LAND VEHICLES; LIFTING JACKS; AXLE STANDS; [ GARAGE TURNTABLES; TIRE CUTTING MACHINES; TOWING POLES FOR VEHICLES; CONVEYORS FOR MOVING A VEHICLE PAST STATIONS AT WHICH THE VEHICLE IS SERVICED BY OILING, ] GREASING, [ WASHING, POLISHING ] AND THE LIKE; [ CENTRIFUGING MACHINES; ] CLEANING MACHINES; WASHING MACHINES FOR INDUSTRIAL PURPOSES AND FOR LAND VEHICLES; HYDRAULIC PRESSES; AND PARTS FOR ALL SUCH GOODS