Abstract: A wet-cleaning apparatus for the wet cleaning of a floor surface includes a hand-guidance part, which is connected for pivoting articulation, about at least two joint axes, to a floor part, which in an operating state rests on the floor surface, and is in torque-transmitting operative connection with the floor part. At least one floor-treatment tool is arranged on the floor part and has two disc tools, which in the operating state rest on the floor surface, can be rotated in opposite directions by at least one drive and are arranged and/or configured such that, in the operating state, there is permanent linear propulsion along a cleaning direction onto the floor part. A suction-bar arrangement is arranged behind the floor-treatment tool, as seen in relation to the cleaning direction, and is intended for the suction removal of liquid from the floor surface.

Abstract: Surface-treatment appliance having a base arrangement, which in a functional position can be displaced on a surface which is to be treated, and having a guide part articulated on the base arrangement and intended for controlling the base arrangement manually. An arcuate guide is provided on the base arrangement, on which can be displaced in a linear manner a carriage body. The carriage body is connected to the guide part and is supported on the arcuate guide, at least in the radial direction, by at least two supporting points, which are spaced apart from one another along the arcuate guide.

Abstract: A hand-guided floor treatment device includes a bottom part, which includes at least one tool which is rotatable on a floor by a drive, as well as a guide part which includes at least one handle and is connected to the bottom part by an articulated arrangement which is developed in such a manner that the guide part, proceeding from a perpendicular, is pivotable in relation to the perpendicular in angular positions rotating in all directions and is operatively connected to the bottom part so as to transmit torque in an angularly limited manner in each angular position in relation to the perpendicular. The at least one rotatable tool is arranged in such a manner on the bottom part that when the floor treatment device is operating the at least one rotatable tool exerts permanent linear propulsion on the bottom part.

Abstract: The invention relates to a handheld floor treatment device, comprising a floor part (1), which has a liquid supply (11), and a liquid in-take (13) and a structurally separated suction unit that contains at least one suction turbine (17). The invention further relates to a handheld floor treatment device, comprising a floor part (1) having a bow (5), which encompasses the floor part (1) at least in some sections and which is connected to the floor part (1) by means of a first joint (4) that can be adjusted in the treatment direction (6), and further comprising a guide part (2) attached to the bow (5), the guide part having a handle (3).

Abstract: The invention relates to a handheld floor treatment device, comprising a floor part (1), which has a liquid supply (11), and a liquid in-take (13) and a structurally separated suction unit that contains at least one suction turbine (17). The invention further relates to a handheld floor treatment device, comprising a floor part (1) having a bow (5), which encompasses the floor part (1) at least in some sections and which is connected to the floor part (1) by means of a first joint (4) that can be adjusted in the treatment direction (6), and further comprising a guide part (2) attached to the bow (5), the guide part having a handle (3).

Abstract: The invention concerns to a device for fixing conductor tracks on at least one first main-surface of at least one solar cell.

Abstract: The invention concerns to a solar cell-string, wherein a “string” describes a series of solar cells which are connected by electrical conducting strips.

Abstract: The invention concerns to a device for fixing conductor tracks on at least one first main-surface of at least one solar cell.

Abstract: The invention concerns a photovoltaic module with a transparent cover, that forms a first main surface of the module, a protective layer, that runs parallel and with a distance to the cover and forms a second main surface of the module, a first adhesive layer between the cover and a photovoltaic layer formed from a multitude of cells, a second adhesive layer between the protective layer and the photovoltaic layer, wherein the first and second adhesive layer are extending into an area between the cells of the photovoltaic layer and around the cells and are projecting the module circumferentially at the edge by 0.1 to 3 mm.

Abstract: The invention relates to a photovoltaic module. Such a photovoltaic module is also referred to as a “string” and consists of a plurality of plate-shaped cells, what are known as solar cells, which are arranged at a distance from each other and flush with each other.

Abstract: A multi-plate friction clutch for a motor vehicle to automatically engage normally driven wheels with wheels which are not normally driven includes a fluid pressure piston/cylinder for engaging the plates connected to a pressure line and a discharge line through two rotary valves. One valve is formed by an inner plate carrier rotatable on a drive shaft through an angle .alpha. and the other valve is formed by a sleeve around the shaft and rotatable with respect to a fixed housing through an angle .beta.. The cylinder is selectively pressurized or de-pressurized through bores, ducts, ports and line systems in dependence or the relative rotary movements of the valves.An over-ride valve is provided.