<titlePart> <text>SECTION B <emdash/> PERFORMING OPERATIONS</text> </titlePart> <titlePart> <text>TRANSPORTING</text> </titlePart> LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION Method General operations by centrifugal force, using centrifuges or free-vortex apparatus using magnetic or electrostatic effect Apparatus General operations by centrifugal force, using centrifuges or free-vortex apparatus , using magnetic or electrostatic effect SOLID/LIQUID OR SOLID/GAS SEPARATION Method General operations by centrifugal force using centrifuges or free-vortex apparatus using magnetic or electrostatic effect Apparatus General operations by centrifugal force using centrifuges or free-vortex apparatus , using magnetic or electrostatic effect SOLID/SOLID SEPARATION Method Dry methods material in bulk Individual sorting Screening, sifting, pneumatic sorting using pneumatic tables or jigs by magnetic or electrostatic effect by centrifugal force using centrifuges or free-vortex apparatus Wet methods General operations flotation, differential sedimentation screening Combinations Dry methods - wet methods Apparatus Dry methods material in bulk Individual sorting Screening, sifting, pneumatic sorting using pneumatic tables or jigs by magnetic or electrostatic effect by centrifugal force using centrifuges or free-vortex apparatus , Wet methods General operations flotation, differential sedimentation screening Combinations Dry methods - wet methods <titlePart> <text>SHAPING</text> </titlePart> <titlePart> <text>HAND TOOLS</text> </titlePart> <titlePart> <text>PORTABLE POWER-DRIVEN TOOLS</text> </titlePart> <titlePart> <text>HANDLES FOR HAND IMPLEMENTS</text> </titlePart> <titlePart> <text>WORKSHOP EQUIPMENT</text> </titlePart> <titlePart> <text>MANIPULATORS</text> </titlePart> In this class, the following term is used with the meaning indicated: "portable" includes suspension for easy manual handling, e.g. in connection with spring-suspended portable apparatus for use along assembly lines. <titlePart> <text>PERCUSSIVE TOOLS</text> <entryReference>percussive machines for forging <sref ref="B21J"/></entryReference> <entryReference>hand-held drilling machines, in general <sref ref="B23B0045000000"/>, for wood <sref ref="B27C0003080000"/></entryReference> <entryReference>percussion drilling of earth or rock <sref ref="E21B"/></entryReference> </titlePart> TOOLS DISTINGUISHED BY OPERATIVE METHOD HAMMERS, CHISELS, PUNCHES, OR PICKS DETAILS OR ACCESSORIES <titlePart> <text>Hand hammers</text> </titlePart> <titlePart> <text>Hammer heads of special shape or materials</text> </titlePart> <titlePart> <text>Inserts or attachments forming the striking part of hammer heads</text> <entryReference><mref ref="B25D0001080000" endRef="B25D0001140000"/> take precedence</entryReference> </titlePart> <titlePart> <text>with provision for withdrawing or holding nails or spikes</text> </titlePart> <titlePart> <text>Magnetic holders</text> </titlePart> <titlePart> <text>having deformable heads</text> <entryReference><sref ref="B25D0001120000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>having work protector surrounding faces</text> <entryReference><sref ref="B25D0001120000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>having shock-absorbing means</text> </titlePart> <titlePart> <text>having plural striking faces</text> </titlePart> <titlePart> <text>having the impacting head in the form of a sleeve slidable on a shaft, e.g. hammers for driving a valve or draw-off tube into a barrel</text> </titlePart> <titlePart> <text>Hand chisels</text> <entryReference>mortise chisels <sref ref="B27G0017080000"/></entryReference> </titlePart> <titlePart> <text>Centre punches</text> </titlePart> <titlePart> <text>Automatic centre punches</text> </titlePart> <titlePart> <text>Picks</text> <entryReference>combined with other tools <sref ref="B25F"/></entryReference> </titlePart> <titlePart> <text>Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously</text> <entryReference>centrifugal or rotary impact type <sref ref="B25D0015000000"/></entryReference> <entryReference>portable non-percussive drilling tools driven by fluid pressure or pneumatic power <sref ref="B23B0045040000"/></entryReference> </titlePart> <titlePart> <text>of the tool-carrier piston type, i.e. in which the tool is connected to an impulse member</text> </titlePart> <titlePart> <text>of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member</text> </titlePart> <titlePart> <text>Means for driving the impulse member</text> </titlePart> <titlePart> <text>comprising a built-in air compressor</text> </titlePart> <titlePart> <text>comprising a built-in internal-combustion engine</text> </titlePart> <titlePart> <text>operated by combustion pressure generated by detonation of a cartridge</text> </titlePart> <titlePart> <text>comprising a built-in liquid motor</text> </titlePart> <titlePart> <text>Control devices for the reciprocating piston</text> </titlePart> <titlePart> <text>Valve arrangements therefor</text> </titlePart> <titlePart> <text>involving a piston-type slide valve</text> </titlePart> <titlePart> <text>involving a tubular-type slide valve</text> </titlePart> <titlePart> <text>involving a rotary-type slide valve</text> </titlePart> <titlePart> <text>involving a rocking-plate type valve</text> </titlePart> <titlePart> <text>Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof</text> </titlePart> <titlePart> <text>Portable percussive tools with electromotor drive</text> <entryReference>centrifugal or rotary impact type <sref ref="B25D0015000000"/></entryReference> </titlePart> <titlePart> <text>in which the tool is connected to an impulse member</text> </titlePart> <titlePart> <text>in which the tool bit or anvil is hit by an impulse member</text> </titlePart> <titlePart> <text>Means for driving the impulse member</text> </titlePart> <titlePart> <text>comprising a worm mechanism</text> </titlePart> <titlePart> <text>comprising a cam mechanism</text> </titlePart> <titlePart> <text>comprising a crank mechanism</text> </titlePart> <titlePart> <text>Portable percussive tools with electromagnetic drive</text> <entryReference><sref ref="B25D0015000000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Portable percussive tools using centrifugal or rotary impact elements</text> </titlePart> <titlePart> <text>in which the tool bit or anvil is hit by a rotary impulse member</text> </titlePart> <titlePart> <text>Portable percussive machines with superimposed rotation</text> <entryReference>portable drilling machines with superimposed percussive action <sref ref="B23B0045160000"/></entryReference> </titlePart> <titlePart> <text>Details of, or accessories for, portable power-driven percussive tools</text> <entryReference>details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed <sref ref="B25F0005000000"/></entryReference> </titlePart> <titlePart> <text>Percussive tool bits</text> <entryReference>drill bits for earth drilling <sref ref="E21B0010000000"/></entryReference> </titlePart> <titlePart> <text>Handles</text> </titlePart> <titlePart> <text>Handle mountings</text> </titlePart> <titlePart> <text>Hammer pistons</text> </titlePart> <titlePart> <text>Anvils</text> </titlePart> <titlePart> <text>Means for retaining and guiding the tool bit, e.g. chucks</text> </titlePart> <titlePart> <text>Safety devices</text> <entryReference>in general <sref ref="F16P"/></entryReference> </titlePart> <titlePart> <text>Arrangements of noise damping means</text> <entryReference>noise damping in general <sref ref="G10K0011160000"/></entryReference> </titlePart> <titlePart> <text>of exhaust silencers</text> </titlePart> <titlePart> <text>Removing or laying dust</text> <entryReference>flushing boreholes while drilling earth or rock <sref ref="E21B0021000000"/></entryReference> </titlePart> <titlePart> <text>by liquid</text> </titlePart> <titlePart> <text>by exhausting dust-loaded air</text> </titlePart> <titlePart> <text>Devices for cleaning or cooling tool or work</text> </titlePart> <titlePart> <text>using pressure fluid</text> </titlePart> <titlePart> <text>Damping the reaction force</text> </titlePart> <titlePart> <text>Lubricating</text> <entryReference>in general <sref ref="F16N"/></entryReference> </titlePart> <titlePart> <text>Supports</text> </titlePart> <titlePart> <text>Devices for holding power-driven percussive tools in working position</text> </titlePart> <titlePart> <text>Pillars and struts</text> </titlePart> <titlePart> <text>Trolleys</text> </titlePart>