Proposed is a wheeled vehicle comprising a frame (2), at least one driving wheel (3) mounted on the frame (2) and swinging pressure levers (5) mounted on the frame (2), and connected to the driving wheel (3) by linkages (12), wherein the swinging pressure lever (5) is a two-arm lever, the first arm (6) of which is designed to apply a muscular force thereto, and a two-arm driving lever (8) is rotatably mounted on the second arm (7), wherein the linkage (12) is connected by the first arm (11) of the driving lever (8) on the first end thereof, and on the second end (28) thereof it is connected to a linkage (12) reset element (30) via a movable sleeve mounted on a shaft (14) of the driving wheel (3) and rotatable in one direction, and the second arm (15) of the driving lever (8) is connected to a driving lever (8) takeup unit.

A canopy assembly includes a canopy fabric, a plurality of tightening wires, and a fastening arrangement. The fastening arrangement includes a plurality of tension adjustment units. Each of the tension adjustment units includes a supporting frame, a ratchet gear, a main shaft connected to the ratchet gear and rotatably connected to the supporting frame, and a resilient locking member mounted on the supporting frame to move between a locked position and an unlocked position. In the locked position, the resilient locking member is pivotally moved to engage with the ratchet gear so as to limit the ratchet gear to incrementally rotate in one predetermined direction with respect to the supporting frame, When the resilient locking member is in the unlocked position, the resilient locking member is pivotally moved to disengage from the ratchet gear so as to allow the ratchet gear to freely rotate with respect to the supporting frame.

An oscillating reversible motor providing a novel means of converting oscillating motion into selectable clockwise or counterclockwise rotary motion. More particularly, the invention presents a novel approach to a foot or hand pedal driven apparatus with which a traditional rotary water propeller or other output device may be employed in both forward and reverse directions of relative motion.

A drive train for a treadle scooter using a locking roller clutch on each side of a drive wheel substantially equalizes drive line pull at actuation pulleys operatively associated with the locking roller clutches as a user pivots a rocker board having its ends attached to ends of the drive line.

An apparatus for outputting a solid material entrained in a fluid, the apparatus comprising a receptacle for receiving the solid material, an input for the fluid, an output for solid material, an auger for transporting the solid material from the receptacle to the output, a motor for driving the auger, wherein the motor comprises one or more cylinders each comprising a piston, a second input connected to the input so as to feed part of the fluid to the cylinders, where a cross section of a piston is at least 700 mm.sup.2 or wherein a drive transforming the reciprocating movement of each piston, relative to the cylinder, to rotation of the auger around the first axis, is configured to rotate the auger at least 20 degrees when a cylinder completes a cycle.

A reciprocating action drive for converting reciprocating linear motion to uni-directional rotational motion is disclosed. The reciprocating action drive has a lever arm connected to a drive shaft via a first overrunning clutch such that when the lever arm is rotated in a first direction of rotation by a reciprocating linear motion, the drive shaft is rotates in the same direction. A further overrunning clutch connects the drive shaft such that the drive shaft may rotate in the first direction with respect to the frame, but not in the second, opposite direction. Such an arrangement prevents the drive shaft being driven in the second opposite, direction with respect to the frame. This prevents the lever arms being driven to interfere with any connection they may have to a source of linear reciprocating motion, thereby avoiding damage to such a connection.

A reciprocating action drive having a magnetically sprung overrunning clutch with sprags that contain permanent magnets, is disclosed. The overrunning clutch has inner and outer shafts disposed to rotate about a common axis, and pivoting sprags that incorporate a permanent magnet, located between them. The sprags are shaped and sized, and located and sprung by magnetic attraction, such that the shafts rotate freely past each other in one direction, but lock together when attempted to be rotated in an opposite, lockup direction. A drive shaft is connected to either the inner or outer shaft of the overrunning clutch, and a lever arm is connected to the other shaft. When the lever arm is moved in a first rotational direction, the drive shaft is driven in that same direction. However, when the lever arm is moved in the opposite direction, the drive shaft is not driven as the overrunning clutch freewheels.

A drive mechanism for a medication delivery device is presented having a housing, a rotation member that rotates in a first direction with respect to the housing during setting of a dose of a medication and rotates in a second direction with respect to the housing during delivery of the dose, the second direction being opposite to the first direction. The device also has a piston rod that is displaced in a distal direction with respect to the housing for delivering the dose, a drive member which follows rotational movement of the rotation member in the second direction during delivery of the dose, and a stop member which prevents rotational movement of the drive member with respect to the housing in the first direction during setting of the dose.

A wave energy conversion arrangement comprisingat least two modules (M1, M2) each of which comprisesat least one first float (P1) and at least one second float (P2) coupled mechanically with each other by means enabling for reciprocal and independent displacing of these floats in relation to each other over a predetermined length segment along separate straight lines parallel to each other; at least one elementary energy conversion arrangement (7) using reciprocating movement of said at least one first float (P1) of a given module (M1, M2) relative to said at least one second float (P2) of this module (M1, M2), connecting means (16) for alternative detachable connecting with each other; wherein said elementary energy conversion arrangements (7) of the adjoining modules (M1, M2) are energetically coupled with each other constituting a main energy conversion arrangement (15).

A wave power generator contains: a rotary shaft, a drive gear, a rotary accelerator, and a power generation set. The rotary shaft includes a first gear set fixed by using a first bearing and includes a second gear set mounted by using a second bearing, and a fixing direction of the first bearing is opposite to the second bearing. The drive gear is disposed on the rotary shaft so as to drive the rotary shaft to rotate reciprocately, wherein a chain is connected with the drive gear so as to pull a floating member to move reciprocately. A first end of the rotary accelerator is joined with the first gear set, and a second end of the rotary accelerator is coupled with the second gear set via a clutch gear. An input end of the power generation set is in connection with an output shaft of the rotary accelerator.