Abstract: A self-orienting twin castor with a braking assembly is provided. A main body of the castor rotatably mates with a base of an installation device. The body has a through hole for rotatably accommodating a shaft having two coupling ends for respective wheels, with play along a vertical direction. Elastic means are arranged within a transverse channel of the through hole of the body. The main body has two tubular lateral portions, which are coaxial with the through hole and adapted to accommodate a sleeve of a respective wheel fitted on a coupling end of the shaft. A portion of the castor has, along its inner surface, at least one radially protruding slider parallel to the axis of the shaft.

Abstract: A self-orienting twin castor with braking assembly comprising a main body, designed for rotary mating with the base of an installation device. The body is provided with at least one through hole for accommodating rotatably, with play along a substantially vertical direction, a shaft that has two coupling ends for respective wheels; elastic means are arranged within a transverse channel of the through hole of the body; the main body comprises two tubular lateral portions, which are coaxial with the hole and are adapted to accommodate a sleeve of a respective wheel which is fitted on a coupling end of the shaft accommodated in the hole; at least one portion comprises, along its inner surface, at least one radially protruding slider, which is shaped and parallel to the axis of the shaft.

Abstract: A fire fighting device having a probe for monitoring the temperature in a fire-risk area; a tank for supplying an extinguishing substance; and a dispenser for feeding the extinguishing substance from the tank to the fire-risk area; the fire fighting device also having a control connecting the probe to the tank, and which produces a chemical reaction inside the tank.

Abstract: A self-orienting caster for pieces of furniture and the like, comprising at least one wheel which is supported so that it can rotate about a horizontal axis by a supporting structure which has a vertical cylindrical recess which is open upward and is axially offset with respect to said horizontal axis and constitutes said seat in which a pivot for the pivoting of the caster can rotate, the pivot being insertable in a receptacle of the piece of furniture onto which the caster is to be fitted, the supporting structure comprising two mutually opposite annular flanges, which form respective circular and coaxial holes, a tubular body whose opposite ends are rigidly coupled to the inner edges of the holes and form externally, between the flanges, a rolling track for a supporting bearing for the wheel, respective extensions being monolithically rigidly coupled to the flanges and being mutually associable so as to form the seat which is designed to receive the pivot for the pivoting of the wheel.

Abstract: A self-orienting caster for pieces of furniture, comprising a pair of wheels, which are supported so that they can rotate about a horizontal axis by a supporting body, which has a cylindrical recess that has a vertical axis and is open upward and axially offset with respect to the horizontal axis, and in which a pivot for the caster is inserted rotatably, the pivot being insertable in a receptacle of the piece of furniture in which the caster is to be fitted, further comprising a through seat formed in the body, a tubular element that is driven through the seat coaxially to the horizontal axis and has two cylindrical tubular portions that lie on opposite sides of the body in order to rotatably support the wheels, devices for the axial and rotational locking of the tubular element in the seat and devices for retaining the wheels on the tubular portions.

Abstract: A self-orienting caster, constituted by at least one wheel, which can rotate on a shaft driven horizontally through the seat of a support provided with a vertical recess open upward and offset axially with respect to the shaft and in which a caster pivoting pivot rotates that is provided with first and second portions insertable in a seat of a furniture piece, the second portion having an end stem with reduced diameter forming a shoulder, a bush fixed axially on the stem and forming an annular groove for accommodating, without play, an elastic ring that presses by expanding against the wall of the recess.

Abstract: A self-orientating twin castor of the type that comprises: a supporting body, having a substantially vertical wall; a slot, vertically elongated and passing through the wall; a shaft, driven through the slot; a pair of wheels associated with the opposite ends of the shaft; a vertical receptacle, which is provided in the wall and is axially offset with respect to the shaft; a pivot, being rotatable in the receptacle for connecting the castor to a piece of furniture; two tubular portions, which protrude from opposite sides of the vertical wall and are substantially coaxial to the shaft; a substantially vertical hole, which is provided in the wall above the slot and is connected thereto; a spring, accommodated in the hole and acting on the shaft; the hole being open upwards and closed by a closure element which acts as abutment for the spring.

Abstract: A self-orientating twin castor of the type that comprises: a supporting body, having a substantially vertical wall; a slot, vertically elongated and passing through the wall; a shaft, driven through the slot; a pair of wheels associated with the opposite ends of the shaft; a vertical receptacle, which is provided in the wall and is axially offset with respect to the shaft; a pivot, being rotatable in the receptacle for connecting the castor to a piece of furniture; two tubular portions, which protrude from opposite sides of the vertical wall and are substantially coaxial to the shaft; a substantially vertical hole, which is provided in the wall above the slot and is connected thereto; a spring, accommodated in the hole and acting on the shaft; the hole being open upwards and closed by a closure element which acts as abutment for the spring.

Abstract: Braking device for a self-orientating twin castor composed of two wheels which are rotatably mounted at the opposite ends of a spindle that is driven through a seat of a support which is composed of a vertical wall that lies between the wheels and in which a cylindrical recess is formed with a vertical axis that is eccentric with respect to the spindle. The recess is open in an upward region for the engagement of a pivot for mounting the castor in a piece of furniture, and a lever element is provided which can be coupled to the wall so that it can oscillate between two positions about an axis that is parallel to the spindle. The lever element includes an arm for blocking the wheels, which lies between the wheels, and an actuation arm, which can be accessed by a user.

Abstract: The self-orientatable twin castor has a support made of plastics for a pair of coaxial wheels. The support is constituted by a tubular hub with which a substantially semicircular wall, arranged in the median plane of the castor, is rigidly associated in a perpendicular manner. A semi-cylindrical casing made of metal is associated with the edge of the wall and has wings for positioning and retaining it on the edge of the semi-circular wall.

Abstract: A self-orientatable twin wheel which includes a support which supports a pivot upon which are mounted a pair of wheels. The pair of wheels are provided with hollow tangs into which the pivot is inserted. Bushes with inner and outer collars are interposed between the pivot and tangs. The inner and outer collars engage with grooves provided in the pivot and tangs.