7 Drill cooling apparatus being parts of machines; heat sinks for use in machines; linking mechanisms, namely, chain conveyors; radial feeders for animals; oil separators; oil filters; anti-pollution devices for motors and engines; filters for metal cutting machines; loaders being belt conveyors; automatic conveyor installations, namely, belt conveyors; spiral conveyors being staged and segmented conveyors; grabs, namely, vices for use in the precision clamping of work pieces; industrial robots for feeding workpieces; industrial robots for transferring workpieces; industrial robot tentering machines; industrial robot machines; industrial robots with articulated arms for manipulating workpieces; industrial robots for handling rods; industrial robotic mechanisms being industrial robots for conveying; industrial robots for machine tools; industrial robots; powered metal cutting tools; tools for machine tools, namely, tool bits for machines; dies for use with machine tools; parts for power tools, namely, drill sockets; power tools, namely, thread mills; workpiece slide tables being tables specially adapted to hold powered machinery; machine guides being cutting guides as power tool accessories; rotating centres, namely, turntables and their rotating devices; tables specially adapted to hold powered machines; workpiece carriers, namely, belt conveyors; workpiece carriers, namely, chain conveyors; handling machines, automatic, namely, manipulators for forging presses; clamping tools for holding piece parts during machining; tensioning pieces, namely, clamps for use in the precision clamping of work pieces being parts of machines; tensioning heads, namely, clamps for use in the precision clamping of work pieces being parts of machines; holding devices for machine tools, namely, clamps for use in the precision clamping of work pieces; machine tool holders; tool bits for machine tools; chucks being parts of machines, namely, clamps for use in the precision clamping of work pieces; material handling machines, namely, pallet changing devices in the nature of palletizers for machine tools; oil filter adapters being parts of machine tools; clamping devices, namely, vices for use in the precision clamping of work pieces being parts of machine tools; workpiece clamping attachments being parts of machines; clamping devices for use with machine tools; metal work clamps used for holding piece parts on machine tool tables; driving devices being driving motors for machines, other than for land vehicles; drive mechanisms in the nature of drive belts for machine tools; electric drive belts drives being machine tools; spindles being parts of machines for machine tools; parts of machine tools, namely, power drill bits; machine tools for removing waste material