Abstract: The present invention provides a therapeutic and sports device with a frame including four pivotably interconnected parts comprising: lower, upper, front and rear frame parts, the lower frame part being mounted between the front frame part and the rear frame part by first and second joint respectively; a stand to which supports the lower and front frame parts at a rotation bearing and third joint respectively; a saddle carried on the upper frame part; pedals attached to the lower frame part; a drive wheel for driving a flywheel, the drive wheel being pivotably mounted to the lower frame part; a crankshaft which is immovably connected to the drive wheel at a crankshaft bearing; and a connecting rod connected to the crankshaft at a crankshaft connecting rod bearing and connected to the stand at a stationary connecting rod bearing, the distance between the crankshaft bearing and a line connecting the rotation bearing and the third joint and the distance between the stationary bearing and the rotation bearing bei

Abstract: A method and apparatus for obtaining dissolved, suspended or chemically bound substances from a liquid by passing the liquid upwardly through a bed of adsorbent particles in an upwardly extending channel, the liquid flow rate being such that the particles are fluidized and the liquid flowing initially through a device providing a resistance to flow whereby the flow is stabilized and the particles move slowly within the flow through the channel.

Abstract: A two-wheeled vehicle similar to a bicycle has a frame comprising four pivotably interconnected frame members of which the lower one is provided with a bearing for a sprocket wheel of a chain drive. A crank arm is connected to the sprocket wheel and cooperates with a connecting rod pivotably connected to the upper frame member carrying a saddle. Pedals are mounted on the lower frame member or the front frame member, the latter guiding the steering handle and the front wheel fork. The driving torque is achieved by alternatively shifting the weight between the saddle and the pedals. The saddle moves up and down reciprocally to the pedals and the steering handle forth and back giving the illusion of riding on horseback. The same structural principle is suitable also for a home-trainer.

Abstract: Water is passed from a relative flow thereof in a horizontal direction, into a substantially vertical passage and through a bed of absorption material in a fluidized state, in order to extract a substance from the water. The static pressure of the water is increased by passing the water through a diffuser means before it passes into the vertical passage.

Abstract: A two-wheeled vehicle similar to a bicycle has a frame comprising four pivotably interconnected frame members of which the lower one is provided with a bearing for a sprocket wheel of a chain drive. A crank arm is connected to the sprocket wheel and cooperates with a connecting rod pivotably connected to the upper frame member carrying a saddle. Pedals are mounted on the lower frame member or the front frame member, the latter guiding the steering handle and the front wheel fork. The driving torque is achieved by alternatively shifting the weight between the saddle and the pedals. The saddle moves up and down reciprocally to the pedals and the steering handle forth and back giving the illusion of riding on horseback. The same structural principle is suitable also for a home-trainer.