POINTLESS SWITCH Russian patent published in 2002 - IPC

FIELD: railway transport; switches. SUBSTANCE: proposed switch has movable rails of main track placed on rail base and drive including motor and operating mechanism for moving rails from one extreme position into the other. Number of forming stops for movable rails for each of two extreme positions is secured on rail base. Movable rail operating mechanism is made in form of screw pair including driving member-screw connected by one end through worm reduction gear with motor, and other end fitted in thrust bearing. Mechanism is provided also with driven member - carriage. The latter has pin fitted into socket of tie-rod located between movable rails and pivotally-connected by ends on necks of movable rails. Mechanism is furnished additionally with two carriage travel adjusters, each being installed on rail base at ends of screw and provided with pedestal-nut with stop screw and hollow adjusting screw turned into pedestal-nut coaxially with screw opposite to carriage. Movable rails displacement mechanism is installed under rail base. EFFECT: provision of reliable fastening of pointless switch on rail base and possibility of adjustment of butt joints of movable rails with rails secured on rails base. 3 dwg