Abstract: An equalizing mechanism of a welding apparatus connects an apparatus body and a fixed bracket, and includes a fixed member on the fixed bracket, and a pressure shaft on an apparatus body close to a bottom face of the fixed member. A cutout is at a position facing the fixed member A movable member on the apparatus body accommodates the fixed member. A restrictive member located by side faces of the fixed member and the movable member restricts relative movement thereof to a direction parallel to the pressure shaft. A driven lever is supported by a front portion of the fixed member to abut on an inner front face of the movable member at one end and abut on the pressure shaft at an other end. A spring between a back portion of the fixed member and an inner back face of the movable member presses the two members to move away from each other.

Abstract: A cluster linkage parallel multi-channel rotational control device comprising two or more single channel rotational control devices operatively connected by a cluster linkage assembly to a central shaft. The central shaft is attached to a control input, for example, an aircraft control input. A housing surrounds the central shaft. Each single channel rotational control device is contained within and fixed to the housing. A bearing set supports the central shaft within the housing.

Abstract: The invention concerns a control panel for a motor vehicle system comprising a housing supporting at least a double control unit formed by two rotating knobs arranged projecting relative to the housing and respectively coupled with two shafts, which are capable of being connected to the system elements. One of the shafts bears a coaxial worm screw for driving in rotation a toothed wheel about an axis orthogonal to the shaft axis, said toothed wheel capable of being functionally coupled with a first member of the system, while the other shaft is parallel to the first shaft and is capable of being functionally coupled with a second member of the system. The invention is particularly applicable to heating-ventilating and/or air conditioning systems.