<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>TRANSPORTING</text> </titlePart> <titlePart> <text>RAILWAYS</text> </titlePart> In this class, the following expression is used with the meaning indicated: "railway systems" covers: systems in which trains or individual passenger vehicles or load carriers run on, or are guided by, ground or elevated tracks defined by rails, ropes, cables, or other guiding elements for wheels, rollers, or sliding anti-friction devices (permanently attached to a continuous traction element ); systems in which carriers or impellers for persons or loads are attached to, e.g. suspended from, a guided traction rope or cable which determines their path of movement (chain conveyers, scraper conveyers , ); power and free systems of either of the above types in which vehicles, load-carriers, or loads may be selectively coupled to, or uncoupled from, continuous traction members, e.g. cables, chains. <titlePart> <text>SHIFTING OR SHUNTING OF RAIL VEHICLES</text> <entryReference>shifting vehicles in general <sref ref="B60S"/></entryReference> <entryReference>marshalling systems <sref ref="B61B"/></entryReference> </titlePart> <titlePart> <text>Turntables</text> </titlePart> <titlePart> <text>Traversers</text> </titlePart> <titlePart> <text>Transporting rail vehicles on other rail vehicles or dollies</text> <entryReference>shunting <sref ref="B61J0003000000"/></entryReference> </titlePart> <titlePart> <text>Turntables</text> </titlePart> <titlePart> <text>Integral stops</text> </titlePart> <titlePart> <text>of normal railroad type</text> </titlePart> <titlePart> <text>for railways with suspended vehicles, e.g. aerial rope railways</text> </titlePart> <titlePart> <text>for connecting inclined tracks or tracks of different height</text> <entryReference>wagon elevators <sref ref="B66"/></entryReference> </titlePart> <titlePart> <text>Traversers</text> </titlePart> <titlePart> <text>Rollers or devices for shifting or transporting rail vehicles on rails</text> </titlePart> <titlePart> <text>Shunting or short-distance haulage devices</text> </titlePart> <titlePart> <text>Similar devices for hauling trains on steep gradients or as starting aids</text> </titlePart> <titlePart> <text>Car-propelling devices therefor</text> <entryReference>overhead travelling cranes combined with auxiliary means for shunting railway vehicles <sref ref="B66C0017260000"/></entryReference> <entryReference>capstans <sref ref="B66D"/></entryReference> </titlePart> <titlePart> <text>Gravity shunting humps</text> <entryReference>track brakes or retarding apparatus fixed to permanent way <sref ref="B61K0007020000"/></entryReference> </titlePart> <titlePart> <text>Car-shunting or haulage devices with cable traction or endless-chain driving means</text> </titlePart> <titlePart> <text>with vehicle-engaging truck or carriage</text> </titlePart> <titlePart> <text>Devices with reciprocated pushing bars or like driving mechanisms combined with the track for shunting or hauling cars</text> <entryReference>railway systems of this kind <sref ref="B61B0013120000"/></entryReference> </titlePart> <titlePart> <text>Car-shunting or positioning devices with pinchbar action</text> <entryReference>pinchbars, crowbars in general <sref ref="B66F0015000000"/></entryReference> </titlePart> <titlePart> <text>Self-propelled tractors or pushing vehicles, e.g. mules</text> <entryReference>with cable traction <sref ref="B61J0003060000"/></entryReference> </titlePart> <titlePart> <text>Subject matter not provided for in other groups of this subclass</text> </titlePart>