Abstract: The transmission is for transmitting a reciprocating pedal movement into a rotational movement and comprises a pair of pedals suspended for reciprocating movement, two rotating cam members (29) rotating around respective cam axes (33), each rotating cam member (29) having a peripheral cam surface (31), the rotating cam members (29) being coupled to a rotating member (35) through a respective one-way clutch. Flexible tension members (63) are connecting either pedal to a respective one of the rotating cam members (29), which are eccentric to provide for a gearing ratio between angular movement of the rotating cam member (29) and translational movement of the respective pedal to vary, such that the gearing ratio has a minimum value when the pedal is in an intermediate position between its extended position and its retracted position, and major values when the pedal is in its retracted or extended position.

Abstract: The transmission is for transmitting a reciprocating pedal movement into a rotational movement and comprises a pair of pedals suspended for reciprocating movement, two rotating cam members (29) rotating around respective cam axes (33), each rotating cam member (29) having a peripheral cam surface (31), the rotating cam members (29) being coupled to a rotating member (35) through a respective one-way clutch. Flexible tension members (63) are connecting either pedal to a respective one of the rotating cam members (29), which are eccentric to provide for a gearing ratio between angular movement of the rotating cam member (29) and translational movement of the respective pedal to vary, such that the gearing ratio has a minimum value when the pedal is in an intermediate position between its extended position and its retracted position, and major values when the pedal is in its retracted or extended position.

Abstract: A drainage system is provided that comprises a gully having a circumferential side wall, an outlet and a vortex brake with a vortex chamber having a chamber wall with a peripheral inlet opening and a central outlet opening, the vortex brake being arranged in the gully so that a flow path from the inside of the gully to the outlet leads through the vortex brake, and a drainpipe is connected to the outlet. The vortex brake is arranged in the gully so as to be non-demountable, and the vortex brake is provided with a flushing access having a hose connection.

Abstract: A vortex brake (4) for a liquid drainage system has a vortex chamber (5), an inlet section (6) and an outlet (12), wherein liquid can flow into the inlet section (6), through this into the vortex chamber (5), through this and out through the outlet (12). The vortex chamber (5) has a side wall (9), following a conical face, and a base wall (11). The conical face has a cone axis (10), and the outlet (12) is located at an apex of the conical face. The inlet section (6) has side walls (14) and a bottom wall (15) that extend mutually in parallel in a direction of flow (16) in the inlet section (6), and a ceiling. Said ceiling having a converging ceiling portion, which extends between a first and a second end of the ceiling portion, and which, in said direction of flow, extends converging towards the bottom wall (15).

Abstract: A drainage system is provided that comprises a gully having a circumferential side wall, an outlet and a vortex brake with a vortex chamber having a chamber wall with a peripheral inlet opening and a central outlet opening, the vortex brake being arranged in the gully so that a flow path from the inside of the gully to the outlet leads through the vortex brake, and a drainpipe is connected to the outlet. The vortex brake is arranged in the gully so as to be non-demountable, and the vortex brake is provided with a flushing access having a hose connection.