<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>COUPLINGS</text> </titlePart> <titlePart> <text>DRAUGHT OR BUFFING APPLIANCES</text> <entryReference>vehicle connections in general <sref ref="B60D"/></entryReference> </titlePart> <titlePart> <text>Couplings peculiar to railway vehicles</text> </titlePart> <titlePart> <text>Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means</text> </titlePart> <titlePart> <text>having links or bars coupling or uncoupling by rotating around a transverse horizontal axis</text> </titlePart> <titlePart> <text>Operating devices therefor</text> <entryReference><sref ref="B61G0001080000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>and coupling when the coupling halves are pushed together</text> </titlePart> <titlePart> <text>Control devices therefor</text> </titlePart> <titlePart> <text>having links or bars coupling or uncoupling by rotating around a vertical axis</text> </titlePart> <titlePart> <text>Operating devices therefor</text> <entryReference><sref ref="B61G0001160000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>and coupling when the coupling halves are pushed together</text> </titlePart> <titlePart> <text>Control devices therefor</text> </titlePart> <titlePart> <text>having links or bars coupling or uncoupling by rotating axially</text> </titlePart> <titlePart> <text>Operating devices therefor</text> </titlePart> <titlePart> <text>having screws incorporated in the links for lengthening or shortening the couplings</text> </titlePart> <titlePart> <text>Operating devices therefor</text> <entryReference><sref ref="B61G0001260000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>and coupling when the coupling halves are pushed together</text> </titlePart> <titlePart> <text>Control devices therefor</text> </titlePart> <titlePart> <text>with vertical bolt or pin</text> </titlePart> <titlePart> <text>Operating devices therefor</text> </titlePart> <titlePart> <text>with horizontal bolt or pin</text> </titlePart> <titlePart> <text>Operating devices therefor</text> </titlePart> <titlePart> <text>with shackles and hooks, e.g. specially adapted for mine cars</text> </titlePart> <titlePart> <text>rotatable about line of traction, e.g. for cars which are tiltable when coupled</text> </titlePart> <titlePart> <text>with coupling bars having an enlarged or recessed end which slips into the opposite coupling part and is gripped thereby, e.g. arrow-head type</text> </titlePart> <titlePart> <text>with coupling parts having a tong-like gripping action</text> </titlePart> <titlePart> <text>Operating devices therefor</text> </titlePart> <titlePart> <text>Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements</text> </titlePart> <titlePart> <text>with interengaging movably-mounted hooks or links guided into alignment by a gathering device, e.g. "Dowty" type</text> </titlePart> <titlePart> <text>with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type</text> </titlePart> <titlePart> <text>Knuckle-locking devices</text> </titlePart> <titlePart> <text>Control devices, e.g. for uncoupling</text> </titlePart> <titlePart> <text>with coupling heads in the form of hook-like interengaging rigid jaws, e.g. "Willison" type</text> </titlePart> <titlePart> <text>Jaw-locking devices</text> </titlePart> <titlePart> <text>Control devices, e.g. for uncoupling</text> </titlePart> <titlePart> <text>with coupling heads rigidly connected by rotatable hook plates or discs and balancing links, the coupling members forming a parallelogram, e.g. "Scharfenberg" type</text> </titlePart> <titlePart> <text>Locking devices</text> </titlePart> <titlePart> <text>Control devices, e.g. for uncoupling</text> </titlePart> <titlePart> <text>with coupling heads rigidly connected by locks consisting of pivoted latches</text> </titlePart> <titlePart> <text>Latch-locking devices</text> </titlePart> <titlePart> <text>Control devices, e.g. for uncoupling</text> </titlePart> <titlePart> <text>with coupling heads rigidly connected by locks consisting of slidable pins</text> </titlePart> <titlePart> <text>with coupling heads rigidly connected by pins having locking noses which are brought into locking position by rotating the pins</text> </titlePart> <titlePart> <text>Couplings for special purposes not otherwise provided for</text> </titlePart> <titlePart> <text>for coupling articulated trains, locomotives and tenders, or the bogies of a vehicle</text> </titlePart> <titlePart> <text>Coupling by means of a single coupling bar</text> </titlePart> <titlePart> <text>Couplings preventing or limiting relative lateral movement of vehicles</text> </titlePart> <titlePart> <text>for matching couplings of different types, e.g. transitional couplings</text> </titlePart> <titlePart> <text>for, or combined with, couplings or connectors for fluid conduits or electric cables</text> </titlePart> <titlePart> <text>for fluid conduits</text> </titlePart> <titlePart> <text>for electric cables</text> </titlePart> <titlePart> <text>Details or accessories</text> </titlePart> <titlePart> <text>Hand tools for coupling or uncoupling</text> </titlePart> <titlePart> <text>Coupling or uncoupling by means of trackside apparatus</text> </titlePart> <titlePart> <text>Coupling heads constructed to facilitate alignment</text> </titlePart> <titlePart> <text>Adjustable coupling heads</text> </titlePart> <titlePart> <text>Mounting of the couplings on the vehicle</text> </titlePart> <titlePart> <text>Adjustable coupling bars, e.g. for centralisation purposes</text> </titlePart> <titlePart> <text>Safety devices</text> </titlePart> <titlePart> <text>Draught or buffing appliances peculiar to railway or tramway vehicles</text> </titlePart> <titlePart> <text>Draw-gear</text> </titlePart> <titlePart> <text>Draw-gear and non-integral buffing appliances with combined action or acting on the same spring</text> </titlePart> <titlePart> <text>Draw-gear combined with buffing appliances</text> <entryReference>continuous <sref ref="B61G0009120000"/></entryReference> </titlePart> <titlePart> <text>with rubber springs</text> </titlePart> <titlePart> <text>with fluid springs or fluid shock-absorbers</text> </titlePart> <titlePart> <text>Combinations thereof</text> </titlePart> <titlePart> <text>with separate mechanical friction shock-absorbers</text> </titlePart> <titlePart> <text>Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill</text> </titlePart> <titlePart> <text>with rubber springs</text> </titlePart> <titlePart> <text>with fluid springs or fluid shock-absorbers</text> </titlePart> <titlePart> <text>Combinations thereof</text> </titlePart> <titlePart> <text>with separate mechanical friction shock-absorbers</text> </titlePart> <titlePart> <text>Details</text> </titlePart> <titlePart> <text>Accessories</text> </titlePart> <titlePart> <text>Supporting framework, e.g. cradles</text> </titlePart> <titlePart> <text>Spring housings</text> </titlePart> <titlePart> <text>Linkages between draw-bar and framework</text> <entryReference>adjustable coupling bars <sref ref="B61G0007120000"/></entryReference> </titlePart> <titlePart> <text>Buffers</text> <entryReference>springs <sref ref="F16F"/></entryReference> </titlePart> <titlePart> <text>with metal springs</text> </titlePart> <titlePart> <text>with helical springs</text> </titlePart> <titlePart> <text>arranged to damp each other by mutual friction</text> </titlePart> <titlePart> <text>with rubber springs</text> </titlePart> <titlePart> <text>with combined rubber and metal springs</text> </titlePart> <titlePart> <text>with fluid springs or shock-absorbers</text> </titlePart> <titlePart> <text>Combinations thereof</text> </titlePart> <titlePart> <text>absorbing shocks by mechanical friction action</text> </titlePart> <titlePart> <text>Combinations of mechanical shock-absorbers and springs</text> <entryReference><sref ref="B61G0011060000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>absorbing shocks by permanent deformation of buffer element</text> </titlePart> <titlePart> <text>Details</text> </titlePart>