Railway junction points tongue layout - has mitre jointed rail ends and tongue ends converging at acute angle

摘要

Two pairs of tongues are used in the main and branching track. They comprise tongues swivelling sideways together, arrestable with the ends of the main track rails when aligned, in junction points, with mitred rail joints. The ends (1',2') of the rails (1,2) converge at an acute angle, symmetrically to their centre line. The adjacent ends (3'-6') of the tongues (3-6) converge outwardly at an acute angle. The former are able to swivel elastically sideways, and the tongues are able to swivel elastically sideways overall. Rail ends may be outwardly arched, and tongue ends are correspondingly shaped which permits easy travel from back to tongues.