Abstract: A wave energy converter comprises a space truss having vertical frames between which a plurality of floats are placed, generators and means for converting the vertical reciprocating movement of the floats into a unidirectional rotation of the of the generator shaft on which a flywheel is fixed. This means has a gearing converting alternate rotation of its input shaft into unidirectional rotation of its output shaft provided with an overrunning clutch on which the flywheel is mounted. The flywheel stabilizes the rotation of the generator shaft and together with the overrunning clutch lets the float to sink to initial position.

Abstract: A Wankel-type rotary engine comprising a longitudinal housing divided on two parts by a partition having a window, a rotor passed through the window and engaged with an end wall sliding in the cavity, and forming together with the cavity, end wall and partition working chambers, and a means for moving the rotor along the cavity.

Abstract: The heat engine cycle for four-stroke and six-stroke engines essentially increasing their efficiency, stipulates cessation of suction of a charge before a piston of the engine reaches bottom dead center during the suction stroke and ignited in proportionally decreased volume of combustion chamber. The central angle of a sector of the cams on which their lobes are located is decreased in the inventive engine.

Abstract: A chewing toothbrush consists of a plurality of upper and lower base members, transverse carriers fixed on their front and tongue sides, extending towards the opposite base members and having ends protruding over the upper base members and under the lower base members and provided with bristles, and means for connecting the base members in elastic unit The means may consist of the balloon with the compressed air attached to the base members.

Abstract: A torpedo comprises an outer cylindrical casing, an inner narrowing casing forming a passage and having an inlet and an outlet coinciding with the outer casing, a rocket engine having an annular exhaust nozzle directed into the rear portion of the passage, perforations in the inner and the outer casings and canals communicating the nozzle with the spaces adjoining perforations.

Abstract: An automatic umbrella has a telescopic stick, a frame carrying a canopy and connected to the stick by rings, automatic closing and opening means, a case connected to the lower tube of the stick, and means for twisting the folds of the canopy. Means for twisting the folds may have a thread provided on the middle tube of the stick, and a notch provided on the lower tube of the stick and engaging with the thread.

Abstract: An automatic transmission has at least one wheel member provided with a plurality of turnable blades and vane members located between discs of the wheel and connected by a turning mechanism. Each of the blades is turnable about an axis of a curved surface which describes the respective blade.

Abstract: An automatic transmission has a driving shaft and a driven shaft rotatable about an axis of the transmission, a first gear drive including central gears mounted on the shafts and satellite gears engaging with the central gears, a second gear drive including central gears and gyroscopic satellite gears engaging the central gears of the second gear drive and mounted on a carrier, elements connecting the gear drives with one another and transmitting gyroscopic moments from the second gear drive to the first gear drive, and a reactor engaging the central gears of the second gyroscopic gear drive.

Abstract: A rotary engine has covers spaced from one another, rotors located between the covers and planetating in different phases, gearings for synchronizing planetating of the rotors and including first and second gears, a plurality of carriers each connected with the rotors planetating in the same phase and planetating with the same, eccentric shafts arranged to support the carriers during their planetating; elements for connecting said covers with one another.

Abstract: A bracelet, for example, for a watch has two spring elements arranged in two longitudinal rows and connected with one another by a plurality of transverse connecting elements. The connecting elements may overlap one another. The bracelet may be made of a one piece blank by stamping and subsequent bending of respective parts thereof.

Abstract: A rotary machine has a plurality of rotors rolling over one another and defining therebetween and end covers at least one working chamber, and at least one sealing plate at at least one side of the rotors and arranged so that an opposite side of the sealing plate communicates with the working cavity and the working medium flowing to the opposite side of the sealing plate presses the latter against one end face of the rotors. Insert members of bearing have conical surfaces receiving the shaft and can turn about their axes to compensate for wear.

Abstract: A rotary machine, such as a rotary engine, a rotary pump and the like, has a plurality of rotors which are so arranged and shaped that they roll over one another and together bound a permanently closed during rotation, working chamber. This working chamber is closed peripherally by the rotors, and axially by covers. The shape of the rotors may be formed by an inner envelope of a square which is connected with an inner larger circle rolling over a smaller circle. The shape of the rotors may also be produced by an inner envelope of a triangle whose inner larger circle rolls over a smaller circle.