Abstract: A method for controlling a power tool includes ascertaining a workpiece characteristic of the workpiece to be processed from previously acquired measured values, determining the workpiece material from the workpiece characteristic of the workpiece to be processed, specifying initial values, which are suitable for processing the workpiece made of the determined workpiece material using the power tool, for machine parameters such as feed, speed, and torque, storing the initial values for putting the power tool into operation with machine parameters set to the initial values and/or putting the power tool into operation with machine parameters set to the initial values. A cooling constant is ascertained according to the Newtonian cooling law as the workpiece characteristic of the workpiece to be processed. To ascertain the cooling constant, the ambient temperature is measured, the workpiece is heated, and the actual temperature of the workpiece is measured, whereupon the cooling constant is computed.

Abstract: A distance combat means for non-lethal exposure of the human or animal body to an irritant is provided. The distance combat means comprises a housing (2,4) containing at least an irritant (5), a propellant (3), and moreover at least a medical adhesive (7), namely a cyanoacrylate preparation, polyvinylpyrrolidone or cellulose nitrate. The irritant may be 2-chlorobenzylidene malonic acid dinitrile (CS), ?-chloroacetophenone (CN) or capsaicin (CPS).

Abstract: A string reel (1) for being mounted on a cutting head of a string trimmer in a rotatable manner in mowing operation. The string reel (1) is constructed as an exchangeable wearing part, onto which a number of mowing string strands (2) is wound up, for example two mowing string strands (2), so that in mowing operation each free thread end is pulled radially outwards by centrifugal force and the piece of thread pulled outwards by the rotary movement in mowing operation and located at the free thread end can knock off plant stalks. The mowing string strands (2) have a greater length than the respective thread piece pulled outwards in mowing operation at the free thread end, so that the number of mowing string strands (2) can be pulled out at the free thread end after wear of the thread piece.

Abstract: In a respiratory protection mask with a face mask part (2) and, associated with the latter, an air disinfection device (3) comprising a housing (4) exhibiting an input communicating with the environment, and further an output communicating with the internal area of the face mask part (2) and whose internal area is designed as an air irradiation chamber (16) provided with at least one LED light source (6) emitting UV light, a high user-friendliness is achieved in that the LED light source (6) is arranged on a slide (7) which is detachably receivable in an associated frame (8) provided on the housing side and open towards the air irradiation chamber (16).

Abstract: A miter saw and a workpiece support are provided. The workpiece support has a circular disc-shaped turntable penetrated by a saw blade slot serving as a passage for the saw blade lowered into the working position, a holder on one side for fastening the saw unit, and a radial arm which extends the turntable and the saw blade slot in the longitudinal direction of the slot radially outwards on a side opposite the holder. A radial arm connection is provided, on which the radial arm is detachably and co-rotatably attached to the turntable, or on which a radially outer radial arm outer portion of the radial arm is detachably and co-rotatably attached to a radially inner radial arm inner portion of the radial arm formed integrally with the turntable. The miter saw has blade that can be moved transversely and lowered from a position above the workpiece support.

Abstract: A hand-held electric hammer includes a handle arrangement on a tool carrier shank in which a striking mechanism actuated by an electric motor is accommodated and at the lower end of which a tool holder is arranged, which is suitable for receiving a tool attachment in the form of a spade blade, a demolition chisel, or a PVC scraper. The handle arrangement is designed as a T-shaped T-handle seated on the tool carrier shank, so that on both sides of the tool carrier shank there are two handles for both a left and a right hand of a user, whereby in the lower half of the tool carrier shank an additional handle stub is attached protruding in parallel with the T-handle from the tool carrier shank, which allows the electric hammer to be gripped with one hand on the T-handle and with the other hand on the additional handle stub.

Abstract: The invention is concerned with a shielding device (1) for shielding a saw blade (3) or band of a sawing machine against access by an operator and against ejection of workpiece parts, which can be attached to the sawing machine in such a way that, in a working position, it covers the saw blade (3) or band towards the operator. The shielding device (1) comprises a temperature monitoring unit (2) which has a temperature sensor (4). The invention is characterized in that the temperature sensor (4) operates without contact and, with the shielding device (1) mounted on the sawing machine and located in the working position, is directed towards the toothing of the saw blade (3) or band, and a display device (5) displays the surface temperature detected by the temperature sensor (4) on the surface of the toothing of the saw blade (3), wherein the temperature monitoring unit (2) is formed as an autarkic operating unit and is mounted on the shielding device (1) such that it is detachable by an operator without tools.

Abstract: A method for controlling a power tool includes ascertaining a workpiece characteristic of the workpiece to be processed from previously acquired measured values, determining the workpiece material from the workpiece characteristic of the workpiece to be processed, specifying initial values, which are suitable for processing the workpiece made of the determined workpiece material using the power tool, for machine parameters such as feed, speed, and torque, storing the initial values for putting the power tool into operation with machine parameters set to the initial values and/or putting the power tool into operation with machine parameters set to the initial values. A cooling constant is ascertained according to the Newtonian cooling law as the workpiece characteristic of the workpiece to be processed. To ascertain the cooling constant, the ambient temperature is measured, the workpiece is heated, and the actual temperature of the workpiece is measured, whereupon the cooling constant is computed.

Abstract: The invention is concerned with a string reel (1) for being mounted on a cutting head of a string trimmer in a rotatable manner in mowing operation. The string reel (1) is constructed as an exchangeable wearing part, onto which a number of mowing string strands (2) is wound up, for example two mowing string strands (2), so that in mowing operation each free thread end is pulled radially outwards by centrifugal force and the piece of thread pulled outwards by the rotary movement in mowing operation and located at the free thread end can knock off plant stalks. The mowing string strands (2) have a greater length than the respective thread piece pulled outwards in mowing operation at the free thread end, so that the number of mowing string strands (2) can be pulled out at the free thread end after wear of the thread piece.

Abstract: A distance combat means for non-lethal exposure of the human or animal body to an irritant is provided. The distance combat means comprises a housing (2,4) containing at least an irritant (5), a propellant (3), and moreover at least a medical adhesive (7), namely a cyanoacrylate preparation, polyvinylpyrrolidone or cellulose nitrate. The irritant may be 2-chlorobenzylidene malonic acid dinitrile (CS), ?-chloroacetophenone (CN) or capsaicin (CPS).

Abstract: A miter saw and a workpiece support are provided. The workpiece support has a circular disc-shaped turntable penetrated by a saw blade slot serving as a passage for the saw blade lowered into the working position, a holder on one side for fastening the saw unit, and a radial arm which extends the turntable and the saw blade slot in the longitudinal direction of the slot radially outwards on a side opposite the holder. A radial arm connection is provided, on which the radial arm is detachably and co-rotatably attached to the turntable, or on which a radially outer radial arm outer portion of the radial arm is detachably and co-rotatably attached to a radially inner radial arm inner portion of the radial arm formed integrally with the turntable. The miter saw has blade that can be moved transversely and lowered from a position above the workpiece support.

Abstract: A push stick for a table saw and a table saw with the push stick are provided. The push stick includes a gripping possibility for a machine operator at its operator-side end. A workpiece engagement notch is formed at the push stick's workpiece-side end. The notch includes a push surface facing in an intended feed direction of the workpiece and a holding-down surface protruding therefrom at the top under a preferably right angle. The push stick includes a detection device which detects whether the push surface and the holding-down surface lie flat against the workpiece. The push stick further includes a signaling device which emits a flat contact signal when the detection device has detected a flat contact of the push surface and the holding-down surface on the workpiece. The signal therefore signals whether the push surface and the holding-down surface lie flat against the workpiece.

Abstract: A saw has a machine head mounted on a machine frame to be pivotable in a vertical plane and to be pressable downwards for sawing from a rest position and which carries a saw blade rotating for sawing. The saw has a dust collector, serving to receive the chips and dust produced during sawing, connecting to a connection socket on a saw blade cover mounted above the saw blade on the machine head, being displaceably arranged on a carriage received in a linear guide, and being connected to the connection socket via a flexible connecting line. When the machine head is pressed down, the dust collector makes a linear displacement movement, the saw blade cover and the dust collector move relative to the machine frame, and the bendability or flexibility of the connecting line between the connection socket and the dust collector compensates for the different directions of movement.

Abstract: A hand-held electric hammer includes a handle arrangement on a tool carrier shank in which a striking mechanism actuated by an electric motor is accommodated and at the lower end of which a tool holder is arranged, which is suitable for receiving a tool attachment in the form of a spade blade, a demolition chisel, or a PVC scraper. The handle arrangement is designed as a T-shaped T-handle seated on the tool carrier shank, so that on both sides of the tool carrier shank there are two handles for both a left and a right hand of a user, whereby in the lower half of the tool carrier shank an additional handle stub is attached protruding in parallel with the T-handle from the tool carrier shank, which allows the electric hammer to be gripped with one hand on the T-handle and with the other hand on the additional handle stub.

Abstract: A wood splitting device includes a base formed as a base plate with a horizontally upwardly facing wood parking surface and a wood fixing arrangement fixed to the base for fixing a piece of wood disposed on the wood parking surface. The wood splitting includes a holder for holding a compressed-air-driven striking mechanism formed as a hand-held pneumatic hammer above the fixed piece. The pneumatic hammer has an upper-side handle, an actuator arrangement, and a tool carrier shaft, at the lower end of which a tool holder for receiving a splitting attachment is arranged. The holder is formed so that the pneumatic hammer is releasably attachable thereto. A wood splitting method includes disposing of a piece of wood to be split on a wood parking surface, fixing the disposed piece of wood, moving a striking mechanism into a working position, and operating and holding down the striking mechanism.