Abstract: A planetary gear system comprising housing, an input shaft at one end and an output shaft at the opposite end and transmission means drivingly connecting the shafts to one another. The transmission means includes a planet support having at least two planet wheel journals mounted therein. At least one of the journals mounts a planet friction wheel adapted to contact a friction ring having at least an elastically deformable portion. Means is provided for adjusting the pressure applying relation between the planet friction wheel and the elastically deformable portion of the friction ring. This arrangement provides a multiple step gear system wherein the play in the system is minimized and the system operates at low noise levels.

Abstract: A ball bushing comprising a sleeve, a cage, inside the sleeve adapted to be mounted on a shaft member or the like. The ball bushing has formed therein a number of closed ball paths, the balls being loaded between the sleeve and the shaft in a section or zone of each ball path. The sleeve has a number of longitudinal profiles countersunk in relation to a circle circumscribing the sleeve. The profiles define internal raceways for the loaded balls. The sleeve is also characterized by a generally uniform or constant cross sectional shape along its entire length.

Abstract: A device for transforming a reciprocating linear movement into a rotary movement comprising a first member adapted for reciprocating axial movement relative to a turnable second member, means for displacing said reciprocating first member in opposite linear directions, at least a pair of annular sleeves disposed in a space between said first and second members, each sleeve having a frustoconical tapered surface confronting and adapted for torque transmitting engagement with a corresponding tapered surface on one of said members, the surface of each sleeve opposite the frustoconical surface confronting a surface of the other one of said members and guide means including at least one helical groove in one of said confronting surfaces and a guide element engageable in said grooves, actuation of said one member linearly in one axial direction causing engagement with the frustoconical surface of one sleeve to prevent turning relative to said one member and through said guide means rotation of said other member, ac

Abstract: A manual steering wheel or the like is connected through a rotatable flexible cable and a double-acting free wheeling clutch to a rotatable element controlling the position of a steering member such as a boat's rudder. A servo motor is also connected through the clutch to the rotatable element, and starting, stopping, and the direction of operation of the motor are controlled by electric pole changing spring contacts associated with the wheel. The connection of the steering wheel to the rotatable element is directly through the free wheel element of the clutch, while the servo motor is connected to the rotatable element through the other rotary element of the clutch. This permits the servo motor normally to drive the rudder in response to steering wheel motion, but direct manual steering is enabled should the servo motor operate too slowly or not at all.

Abstract: A ball bushing which comprises a sleeve and a shaft, and balls arranged therebetween. The balls are guided in a cage and, between the sleeve and shaft there are arranged load-carrying strips for the balls, characterized in that the sleeve of the ball bushing is shaped with a number of preferably circular envelope surface extending ridges showing a continuous cross-section basic profile. The interior of the sleeve is of polygon shape and in the middle of the polygon surfaces there are the apertures provided with a bottom intended to receive load-carrying strips for the balls in the loaded zone and also intended to center the cage element which in a corresponding manner is of polygon shape.

Abstract: A ball bush unit, comprising a number of ball races with balls, a holder for the balls and a casing surrounding essentially the holder and the balls, the casing and the holder showing a longitudinal slot, with the characteristic that for tightening the bush against the axle an arched washer provided with a screw is arranged on at least one side of the slot.

Abstract: An adjustable ball groove slide having a slide movable axially along a beam, with balls secured in recirculation paths between the beam and slide, and pressure members carried by the slide for partially defining said paths, with adjustment means for varying selectively the force on said pressure members and the play in the assembly of the beam, balls and slide.

Abstract: A ball bushing device adapted to be mounted on a shaft, comprising a sleeve element containing a bore defined by an interior wall surface, plural balls within the sleeve, and a raceway structure between the balls and the sleeve element, the raceway structure having curved elastic plate members and having a generally concavo-convex surface facing toward the shaft and the concave surface facing toward the sleeve element.