7 ANTI-FRICTION BEARINGS FOR MACHINES, BEARINGS, JOURNALS, ROLLER BEARINGS, AND SHAFT BEARINGS, LOW-FRICTION SLEEVE, BALL AND SOCKET BEARINGS AND ACTUATOR NUTS, ROD ENDS FITTED WITH LOWFRICTION AND ANTI-FRICTION BALL AND SOCKET BEARINGS, SHAFT HANGERS AND TAKE-UPS; CLOSING COLLARS FOR AXLES AND SHAFTS; SHAFT COUPLINGS-NAMELY, DISC COUPLINGS, ROLLER CHAIN COUPLINGS AND ELASTOMER COUPLINGS; [ AGITATORS FOR AGITATING CONCRETE DURING TRANSPORT, CONCRETE MIXERS; ROAD CRUSHERS, ROAD ROLLERS DRIVEN BY PETROL, ROAD MAKING MACHINES DRIVEN BY PETROL-NAMELY, CONCRETE RECEIVING, SPREADING, SMOOTHING AND FINISHING MACHINES TRAVELLING ON SIDE FORMS OR WITH SIDE FORMS; MACHINES WHICH ARE SELF-PROPELLED FOR COMPACTING THE SOIL FOR ROADWAYS, MACHINES WHICH ARE SELF-PROPELLED FOR MIXING SOIL STABILIZERS WITH THE SOIL IN ROAD CONSTRUCTION, MACHINES WHICH ARE SELF-PROPELLED FOR SPREADING, PUNCTURING, CRUSHING AND COMPACTING TRASH AND WASTE MATERIALS FOR FILLING OVER A LAND AREA; REPAIR PARTS FOR AGRICULTURAL MACHINERY, ] CHAIN ELEVATORS, [ AND IMPLEMENTS OF THE LARGER KIND-NAMELY, ] DRIVE AND CONVEYING CHAIN AND FLIGHTS, [ CHAFF CUTTER BLADES, HAY KNIVES, TELESCOPIC DRIVE, LINES WITH CARDAN JOINTS, MOWING MACHINE KNIVES, CULTIVATING MACHINE PRONGS; ] BELT CONVEYORS, BUCKET ELEVATORS, [ CONVEYORS WORN MACHINERY, ENDLESS BUCKET CONVEYORS, ] AND PARTS THEREOF; [ AND CONVEYORS FOR GATHERING, CONVEYING, ELEVATING, SORTING, DISTRIBUTING AND DELIVERY OF ARTICLES, BAGS, BOXES, PACKAGES, SHEETS, PALLETS AND LUGGAGE-NAMELY, BELT CONVEYORS, GRAVITY AND LIVE-ROLL CONVEYORS, BALL TRANSFER TABLES, ROTARY AND MOVING TABLES, CHAIN CONVEYORS AND CHAIN LIFTS; CONVEYORS OF THE TYPE WICH VIBRATE TO CONVEY THE SUPPORTED BULK MATERIAL OR ARTICLES; CRUSHING MACHINES, CRUSHING PLANTS, CRUSHING ROLLS, STONE CRUSHING MACHINES, GRINDING MILLS, HAMMER MILLS; SHAKING SIEVES-NAMELY, VIBRATING SCREENS AND BAR SCREENS FOR CLASSIFYING OR SEPARATING ORE AND BULK MATERIAL; EXCAVATION HOISTS, MACHINERY FOR ORE TREATMENT, DRUM, SIEVES FOR MINES, WINDLASSES: MACHINES FOR INSTALLING AND MAINTAINING RAILROAD TRACKS, MACHINES FOR LAYING RAILS; ] SHAFT COLLARS, FREE WHEEL CLUTCHES, CHANGE SPEED GEARING FOR MACHINERY, GEARING, TRANSMISSION AND GEARING AND GEAR BOXES NOT FOR LAND VEHICLES, GEAR WHEELS FOR MACHINERY; DRIVING AND POWER TRANSMISSION CHAINS NOT FOR LAND VEHICLES, DRIVING PULLEYS INCLUDING SPROCKETS [ ; HYDRAULIC TRANSMISSION GEAR COMPRISING CYLINDERS WITH PISTONS AND PISTON RODS, ROTARY PUMPS, HYDRAULIC ENGINES, ANNULAR VALVES, BY-PASS VALVES, PRESSURE VALVES, PRESSURE REDUCTION VALVES TO BE PARTS OF MACHINES; AND PORTABLE AND STATIONARY CONCRETE BATCH PLANTS ]