Abstract: An articulated robot has an arm and two forearms which are articulated to the arm about the same axis and controlled by an independent means.

Abstract: The casing of an arm of an articulated robot has a shell-like structure which serves a load-bearing function and houses a module containing the motor unit and related transmission.

Abstract: Two electrical cables of an articulated robot arm are in the form of helical cords which lengthen and shorten respectively during the rotation of the arm.

Abstract: A wrist for an articulated robot has an operative member which is rotatable about three mutually perpendicular axes and three motor units each of which can cause the operative member to rotate about only one of the three axes without causing any rotation about the other axes.

Abstract: A measuring machine provides a base provided with a measurement plane and first guide means defining a first longitudinal axis with respect to the measurement plane itself, a first portal-type carriage slidable along such first guide means and provided with second guide means defining a second axis extending transversely with respect to the measurement plane, a second carriage movable on such second guide means and provided with third guide means defining a third axis orthogonal to the measurement plane, a measurement head provided with a feeler carried by the second carriage and movable with respect to it along the axis by hand grip means fixed to the second carriage and provided with at least one actuating element for manual control of the translation of the measurement head and transmission means for coupling the actuation element to the measurement head.

Abstract: The machine substantially comprises a support element of tubular form within the interior of which a column is axially movable in a first direction, a first carriage movable in a second direction orthogonal to the first and to which the said support element is pivoted to allow rotation about an axis parallel to the second direction, and an arm one end of which is fixed to the column and the axis of which is disposed in a third direction, orthogonal to the other two; the machine further includes a second carriage movable on the arm in the third direction, which is provided with attachment means for a bar to which is fixed a feeler device.

Abstract: A device for controlling the rectilinear translation of a movable member, comprises a screw engaged by a nut having cooperatingly shaped thread surfaces the dimensions of which are such that there is a radial clearance between the screw and the nut and an axial clearance between adjacent helical flanks of the screw and the nut. The nut is provided with radial passages communicating with the chambers defining the radial clearances, which can be put into communication with a source of compressed gas enabling the formation of an air cushion or air bearing between the two relatively movable members thereby reducing the turning moment necessary for effecting rectilinear movement of the movable member.