Abstract: A clutch as used, for example, in vehicle drives, in particular rail vehicle drives. A clutch is specified, by way of which the electric contact between the drive side and the output side of the clutch is prevented reliably, and a simple and inexpensive method for the production thereof is also specified. The problem is solved by way of a clutch, at least consisting of a clutch half on the drive side and a clutch half on the output side, wherein at least one clutch half has at least two hollow cylinders which are arranged above one another and are arranged in a bore of the clutch half, wherein the second hollow cylinder consists of electrically insulating material, and wherein at least the first hollow cylinder, at least on its outer circumferential surface, and at least the inner circumferential surface of the bore have knurling at least in part.

Abstract: A coupling ring for couplings having at least two coupling parts. The object of the invention is to provide a coupling ring for couplings which have at least two coupling parts, which can be applied to the two coupling parts of the coupling in a simpler and easier manner during installation, in particular in the event of a repair for defects in the coupling ring designed as a wedge packet ring and in the coupling region of the wedge packet ring.

Abstract: The invention relates to the field of mechanical engineering and relates to a clutch as can be used, for example, in vehicle drives, in particular rail vehicle drives. It is the problem of the present invention to specify a clutch, by way of which the electric contact between the drive side and the output side of the clutch is prevented reliably, and to specify a simple and inexpensive method for the production thereof.

Abstract: Coupling (1) with a bellows-protected interlocking driving connection (2), at least comprising a hub (3) and a sleeve (4), wherein the driving connection (2) is arranged between the hub (3) and sleeve (4), wherein the driving connection (2) is protected by a bellows (5), wherein the bellows (5) is located in a recess (6) of the hub (3) and is fastened at one end to the sleeve end region (8) and at the other end opposite the sleeve end region (8) to the hub (3), wherein the annular recess (6) is bounded at least by an annular hub inner surface (16) directed towards the driving connection (2) and by an opposite hub outer surface (9) formed with respect to the end side (11) of the hub (3), wherein there is an annular gap (10) between the sleeve end region (8) and the hub outer surface (9) of the recess (6). The intention is to avoid dust and dirt penetrating the bellows section as wave troughs and face the hub outer surface, in the recess present with the hub in region bellows and hub outer surface.

Abstract: A short-circuit shutdown switch is disclosed having a load current path and a cutting plunger. The load current path has a separating member with a first predetermined cutting zone, a second predetermined cutting zone, and a central section positioned between the first predetermined cutting zone and the second predetermined cutting zone. The cutting plunger is positioned to cut the first predetermined cutting zone and the second predetermined cutting zone.

Abstract: Coupling (1) with a bellows-protected interlocking driving connection (2), at least comprising a hub (3) and a sleeve (4), wherein the driving connection (2) is arranged between the hub (3) and sleeve (4), wherein the driving connection (2) is protected by a bellows (5), wherein the bellows (5) is located in a recess (6) of the hub (3) and is fastened at one end to the sleeve end region (8) and at the other end opposite the sleeve end region (8) to the hub (3), wherein the annular recess (6) is bounded at least by an annular hub inner surface (16) directed towards the driving connection (2) and by an opposite hub outer surface (9) formed with respect to the end side (11) of the hub (3), wherein there is an annular gap (10) between the sleeve end region (8) and the hub outer surface (9) of the recess (6). The intention is to avoid dust and dirt penetrating the bellows section as wave troughs and face the hub outer surface, in the recess present with the hub in region bellows and hub outer surface.

Abstract: A short-circuit shutdown switch is disclosed having a load current path and a cutting plunger. The load current path has a separating member with a first predetermined cutting zone, a second predetermined cutting zone, and a central section positioned between the first predetermined cutting zone and the second predetermined cutting zone. The cutting plunger is positioned to cut the first predetermined cutting zone and the second predetermined cutting zone.

Abstract: A load-disconnecting switch has a permanent-magnetic holding circuit. A coil (5), upon excitation thereof, generates a magnetic flux that is opposite to the magnetic flux of the permanent magnet (9). The armature (6) is biassed to an open position by an armature spring (10), so that the armature spring (10), when a defined operational excitation is exceeded, detaches the armature (6) from the core (7) of the magnet system, allowing said armature to open and thereby disconnecting a switching contact (15) and a fixed contact (16). The load-disconnecting switch can be switched on again by means of a spring clip (12) acting on said armature (6).

Abstract: The load section switch is connected between a pole post (4) and a main circuit (8) with a contact arrangement (14, 15, 36). Via a manually actuated switch arm (45), the contact arrangement can be locked in its closed condition, whereby the locking ensues via a switch pawl (39). This switch pawl (39), on the other hand, is coupled to the armature (28) of an electromagnet system (26, 27). In this way, the contact arrangement can be unlocked and the circuit can be interrupted via the electromagnet system given the occurrence of a malfunction condition. Given an accident or a short, the on-board network of a motor vehicle can be quickly disconnected from the current with this section switch in order to reduce the risk of fire or to prevent a discharge of the battery given some other malfunction condition.

Abstract: A device for controlling the flow cross sections of several channels for gas flow tubes which interconnect combustion chamber portions particularly of ram jet engines comprises a polygonal rotary valve which is rotatably mounted adjacent the passages and has corner portions which move through paths which cyclically cover and open these passages. The valve is actuated by a drive which includes a drive motor and shaft which are mounted in an insulation body between the combustion chamber portions.

Abstract: A ram jet engine comprises a wall structure defining a precombustion chamber having a solid fuel which when ignited can raise fuel rich gases which flow through a valve housing passage and into a main combustion chamber where final combustion takes place. A valve is provided in the valve housing which includes a shaft portion which is driven for example by an electric motor to rotate a valve body between two end positions in which the valve body is shifted from a position substantially blocking off all flow through the valve passage to one in which it permits a maximum preselected flow. The valve body is advantageously journalled on a shaft and is provided with a hub portion which embraces the shaft and protects it from the hot gases. The valve body is shaped as a cylindrical wedge tapering from the widest portion of one end to a narrowest portion at the opposite end.

Abstract: In securing a missile to an aircraft, a socket-like recess is formed in the missile housing, a coupling head is releasably secured within the recess by a device including releasable locking members. In addition, an explosive charge is located in the device or the coupling head for displacing the coupling head out of the socket-like recess in the housing when the locking members have been disengaged from the coupling head.