Abstract: A device for pressing out and dispensing dosed quantities of flowable multi-component compounds by application of a pressure on flexible bags for the different components comprising a housing with at least two receiving spaces for the flexible bags, the end of which can be closed by a removable cover element, two plunger-like inserts guided for sliding movement in the receiving spaces, for exerting the pressure on the flexible bags, a mixing device equipped with an ejection nozzle and a drive unit comprising an electric motor and a drive spindle, which drives both the plunger-like inserts and the mixing device, is characterized by the fact that the two receiving spaces open into a mixing space accommodating the mixing device and formed in the cover element.

Abstract: An apparatus for extrusion and metered delivery of free-flowing substances, having a housing (11); having a receiving space (12), openable at least on one side, for a disposable material package; having an expulsion nozzle (13); having a compressed-air connection; and having, on the side opposite the expulsion nozzle (13), a piston that is displaceable in the direction of the expulsion nozzle (13) in the receiving space (12) or in the disposable material package, and pushes the substance ahead of it and thereby ejects it from the expulsion nozzle (13), compressed air being fed from the compressed-air connection to the side of the piston facing away from the expulsion nozzle (13), is characterized in that a compressor (30) driven by an electric motor (20) is arranged in/on the housing (11) in order to generate the compressed air.

Abstract: For a manually operated trigger or switch lever for electric appliances, particularly hand-held electric appliances, such as a portable drill, screwdriver, drilling hammer, grinder, right angle grinder, etc., which, when the appliance is started up, is shifted by the action of pressure applied by the operator and, at the same time, brings about switching processes (switching on and off, accelerating, switching over, reversing) in the appliance, at least the surface of the trigger, which comes in contact with the fingers or a portion of the hand of the operator when pressure is exerted, has at least one elastomeric coating.

Abstract: For a manually operated trigger or switch lever for electric appliances, particularly hand-held electric appliances, such as a portable drill, screwdriver, drilling hammer, grinder, right angle grinder, etc., which, when the appliance is started up, is shifted by the action of pressure applied by the operator and, at the same time, brings about switching processes (switching on and off, accelerating, switching over, reversing) in the appliance, at least the surface of the trigger, which comes in contact with the fingers or a portion of the hand of the operator when pressure is exerted, has at least one elastomeric coating.

Abstract: For the trickle resin impregnation of mainly electrical windings or of other components, electric motors, etc., containing electrical elements, a curing agent-free trickle resin is allowed to leave separately from an outlet opening to form a jet, which is flowing onto the object that is to be impregnated. Before the jet strikes the object, a curing agent may be sprayed onto the jet surface of the flowing trickle resin, so that trickle resin, mixed with curing agent, comes into contact exclusively with the object to be impregnated and not with any other object.

Abstract: For the trickle resin impregnation of mainly electrical windings or of other components, electric motors, etc., containing electrical elements, a curing agent-free trickle resin is allowed to leave separately from an outlet opening to form a jet, which is flowing onto the object that is to be impregnated. Before the jet strikes the object, a curing agent may be sprayed onto the jet surface of the flowing trickle resin, so that trickle resin, mixed with curing agent, comes into contact exclusively with the object to be impregnated and not with any other object.

Abstract: In the case of a universal electric motor for any kind of drive, with a stator package, a rotatably mounted rotor with commutator, as well as end shields on both sides that also constitute the bearings for the rotor and a switching ring that can be rotated through predetermined angular amounts and carries the (carbon) brushes, it is proposed to insert into the end shield A a closely fitting anchor block that serves for locking together the two end shields with the intervening stator package; further, the switching ring can be mounted on an external annular end face of the end shield B that also carries the switching strips or switching rails needed for switching between clockwise and counter clockwise rotation, complete with contact areas situated in the plane of the annular end face and suitable for axial contacting, the said contact areas making contact with other axial contact areas on the switching ring to establish connections with the carbon brushes.

Abstract: For the purposes of assembling an electric tool, and especially an electric hand tool such as, for example, a hand drill, a grinder or a sabre saw, it is proposed to use modular components that are to be axially inserted into and connected with each other. The components comprise a self-contained electric driving motor that supports the rotor shaft in a centered position by means of end shields on both sides that are rigidly fixed to the stator, a self-contained gearing head that is fixed to the motor, and at least a partially tubular, single piece main housing that accommodates the driving motor and the gearing head, an electric circuitry module inserted into the main housing, and a rear cover for the housing.

Abstract: It is proposed to obtain a switching device for the electrical switching (i.e. switching on and off or reversing the direction of rotation) of electric tools, especially electric hand tools such as drills, grinders and the like, by mounting a rotatable setting ring on the outer cylindrical housing of the electric tool and positioning it opposite the end shield at the B-end of the electric motor inside the housing in such a manner that inwardly pointing projections of the setting ring will grip a plate or switching ring on the electric motor and will cause the said plate or switching ring to perform a slave motion for switching the electric motor on and off or reversing its direction of rotation whenever the external setting ring is subjected to a manual rotation.

Abstract: A power-driven screwing tool comprising an electric drive motor, an adjustable depth stop, a drive shaft receiving the screwing tool and adapted for being displaced relative to the depth stop. Between the drive motor and the drive shaft, a first clutch (jaw clutch) transmits the driving torque by form-locking engagement, while a second clutch responds to the predetermined screwing depth and acts to release the form-locking engagement of the first clutch by comprising a transverse pin being engaged or disengaged by a guide pocket whose bottom surface extends at a certain inclination relative to the longitudinal axis of the drive shaft.

Abstract: In connection with a conversion set for a portable circular saw, which latter comprises a housing, an associated electric drive motor with output shaft and, if necessary, also a gear, and at least one handle, it is proposed to attach to the basic unit remaining after removal of the circular saw blade a chain-saw adapter attachment, to convert the portable circular saw in this manner into an electric chain saw and to secure the chain-saw adapter attachment in place by means of mechanical stops provided on a main bearing plate and coacting with the gear housing of the circular saw and, in the axial direction, by tightening a screw upon the output shaft of the circular saw projecting through the drive pinion for the saw chain.

Abstract: A connecting arrangement for a machine tool in which a driving element and a driven component are constrained from relative twisting by guide pins and are further coupled to transmit torque therethrough. The coupling mechanism is provided with an external release lever so that the faces of the driving and driven elements are in complete registry when so coupled.

Abstract: A connecting arrangement for a machine tool in which a driving element and a driven component are constrained from relative twisting by guide pins and are further coupled to transmit torque therethrough. The coupling mechanism is provided with an external release lever so that the faces of the driving and driven elements are in complete registry when so coupled.