Abstract:
A cartridge is described having a cartridge casing (1) and having a propellant cup (4), which is inserted in the cartridge casing (1), receives a sub-caliber projectile (5) in a formfitting manner, and is manufactured from plastic, and which separates the projectile (5) from the propellant charge in the cartridge casing (1) and has axial separation points (15) along its jacket (10). To ensure an advantageous length for the projectile, it is suggested that the propellant cup (5) have at least one pocket (9), extending in a cavity between the projectile (5) and the cartridge casing (1) and/or in a cavity of the projectile (5) and open toward the base (2) of the cartridge casing (1), for receiving a part of the propellant charge.
Abstract:
A telescopic boom (1) for a vehicle (25) or a hoist with a storage rack (6) for at least two box girders (2, 3) guided displaceably in one another in the direction of their longitudinal axes, which are mounted to pivot about a horizontal pivot axle (5) in the storage rack (6) and which can be displaced reciprocally by means of a servo-drive (19) is described. In order to create advantageous structural conditions it is proposed that the longitudinal axles of the box girders (2, 3) form an upwards arched arc of a circle (4) which runs concentrically to a common axis parallel to the pivot axis (5).
Abstract:
A motor and/or generator functioning according to the reluctance principle, has stator sectors distributed over the circumference of the rotor, each with radially projecting pole shanks around which a concentrated exciter coil part is wrapped. The pole shanks are connected by a short-circuit yoke, in that the pole shanks are laterally offset at an angle relative to the radial center line of symmetry of the stator sector in question. This allows a significant reduction in the structural size, while guaranteeing the operational effectiveness.
Abstract:
In a radial blower with two blower wheels (2, 3) fastened axially in tandem on one shaft end each of the interposed drive motor (b 1) with one blower blade circle (21, 31 respectively) held at a radial distance from the hub (26, 36) on the blower shaft side, the operating noise is to be reduced by simple arrangement while maintaining a high output yield; to this end it is proposed to connect the blower blade ring (21 and 31 respectively) of each blower wheel (2, 3) via spokes (22 to 25, and 32 to 35 respectively) leaving free tangential spaces and to arrange the spokes (22 to 25) of the one blower wheel (2) relative to the spokes (32 to 35) of the other blower wheel, as seen in the axial direction (blower shaft 4) in the gaps (circumferential angle of rotation .alpha.) relative to each other in the circumferential direction.
Abstract:
A pneumatic hammer comprises a rigid unit of construction, which comprises a housing, a handle, an operating cylinder resiliently supported in the housing, and a tool holder for receiving a tool movable in a striking direction by the operating cylinder. The operating cylinder is axially movable in the housing relative to the tool holder. Compressed air is supplied to the operating cylinder, and a damping spring acts upon the tool holder in a direction opposite to the striking direction.
Abstract:
A loading device for containers comprises a pair of like loading units to be mounted on a vehicle frame having a longitudinally extending center axis. Each loading unit comprises a bracket, a telescopic column supported on the bracket for pivoting about a common swivel axis defined by the longitudinally extending center axis, the telescopic column consisting of a lower leg portion and an extendable head portion, an operating cylinder acting on the leg portion of the telescopic column at each side thereof, a longitudinally adjustable supporting leg pivotally mounted at each side of the bracket, a cantilever arm carried by the head portion of the telescopic column and adapted to perform a swivel movement to both sides of the telescopic column about a swivel axis extending parallel to the swivel axis of the telescopic column, the cantilever arm comprising an abutment for the connection of a load receiving element, and limit stops on the head portion of the telescopic column for the rigid support of respective swivel positions of the cantilever arm on both sides of the telescopic column.
Abstract:
A dc commutator motor can be switched off when the motor rotor is short-circuited by the rotor's coming to a halt, by an operating switch (10). The switch is provided in the line connecting the brushes to a radio suppression network in a compact and simple design. The switch is operated by an ac voltage induced when the motor is running, with a frequency corresponding to the motor speed. A sensing winding connected to the operating switch for inducing the operating ac voltage is wound preferably around a radio interference suppression choke of the radio suppression network.
Abstract:
A loading device for containers (C) comprises a pair of loading units (2), each having a telescopic column (4) supported on a bracket (3) so as to be swivelled about a common swivel axis (I). The telescopic column consists of a lower portion (9), an upper portion (11) and a column cylinder (17) moving the upper portion (11) with respect to the lower portion (9). Actuating cylinders (5) are connected to the lower portion (9) on both sides, and the upper portion (11) accommodates an extension arm (14) which can be swivelled about a swivel axis (III) parallel to the swivel axis (I) of the telescopic column. To expand the loading possibilities, the upper portion (11) carries a column head (12) which forms a slot-shaped swivel guide (18) with cam tracks (19) limiting the swivelling of the extension arm (14). The extension arm (14) has guide members (20) and is pivotally connected with a sliding piece (13) movably seated inside the upper portion (11) which opens towards the swivel guide (18), where a constriction (21) is provided between the cam tracks (19), so that the guide members (20) of the extension arm (14) aligned in a position stretched with respect to the telescopic column (4) simultaneously contact both cam tracks (19), and on the side of the upper portion the column cylinder (17) acts on the sliding piece (13) which can be moved upwards along a path limited by a stop.
Abstract:
An expansion projectile (1) with a projectile body (2) forms a central arbor (3) at its end face and a collar (4) coaxially surrounding the arbor (3), where the collar (4) has an outer shape (6) tapering towards the free collar edge (5), and between collar (4) and arbor (3) there is provided a cavity (7) open towards the front. In order to achieve a monobloc projectile free from lead with a high efficiency and a wide range of applications in an economic way, the arbor (3) consists of shaft (31) and tip (32) the collar (4) touches the arbor (3) at least in the transition area (33) between shaft (31) and tip (32), and the arbor (3) protrudes at least up to the axial height of the collar edge (5).
Abstract:
In the case of a stator-excited starter-generator, a permanent magnet arrangement, which is magnetized in the opposite direction to the winding excitation, and has yoke overhangs which are radial with respect to the adjacent sector stator elements, is arranged in the axial separating space of two sector stator elements, which are arranged axially one behind the other each stator element is winding-excited by an excitation winding part of opposite polarity.