Patent ID: 7178764

Claim:
A device for operating rail switches, comprising at least a first hydraulic operating device and a second hydraulic operating device, said first hydraulic operating device and said second hydraulic operating device being mutually coupled and arranged in an offset manner in a longitudinal direction of rails, wherein said first hydraulic operating device comprises a first cylinder-piston unit ( 7 ) and said second hydraulic operating device comprises a second cylinder-piston unit ( 7 ), said first cylinder-piston unit and said second cylinder-piston unit being driven in the same direction, wherein working volumes ( 13 ) of the first cylinder-piston unit ( 7 ) and of the second cylinder-piston unit ( 7 ) each comprise a first region ( 18 ) and a second region ( 19 ) with defined cylinder cross sections, and the first region ( 18 ) contains end-position securing means ( 20 , 21 ), and the first regions ( 18 ) of the first cylinder-piston unit ( 7 ) and the first regions ( 18 ) of the second cylinder-piston unit ( 7 ) have equal cross sections, and the second regions ( 19 ) of the first cylinder-piston unit ( 7 ) have cross sections different from corresponding cross sections of the second regions ( 19 ) of the second cylinder-piston unit ( 7 ).