摘要:
The invention relates to a projectile including a cylindrical receiving chamber (4) delimited by an interior wall (3) for a braking parachute (17) which can be ejected by way of a piston (9) that is longitudinally displaceable in the projectile, with the piston (9) being chargeable by an ignitable pyrotechnic charge (10). The braking parachute (17) is encased in a longitudinally divided sleeve (18) one side of which is in engagement with the piston (9). In order to completely or partially recover the projectile and not to impede deployment of the braking parachute (17), it is provided that the rear of the receiving chamber (4) is sealed by a cover (23) which can be ejected by way of the piston (9), is equipped with a rotational imbalance (26) and is in engagement with the other side of the sleeve (18). The braking parachute (17) is fastened to the piston (9). The projectile or a part (1) thereof connected with projectile components to be recovered is provided with a catch ring (21) disposed at the rear exit end of the receiving chamber (4) for the piston (9). The sleeve (18) is able to pass through the catch ring. Guides (19, 28) for the sleeve (18) are provided at the interior wall (3) of the receiving chamber (4).
摘要:
The invention provides a climbing framework for erecting concrete forms in the manufacture of straight or curved reinforced concrete walls, with anchoring members for removably anchoring the climbing framework to the wall, and with anchoring elements which as the wall is built, section by section, can be detached from one section and moved up for manufacture of the next-higher section.
摘要:
The invention relates to novel polyurea- and/or polyurethane polyorganosiloxane compounds, processes for the preparation thereof, and their use and novel reactive 1- or 2-component systems and cured compositions therefrom. The compounds preferably contain repeating units of the formula (2): in the polyurea- and/or polyurethane polyorganosiloxane backbone. The polyurea- and/or polyurethane polyorganosiloxane compounds can also contain polyether segments in the backbone.
摘要:
The invention relates to novel polyurea- and/or polyurethane-polyorganosiloxane compounds, processes for the preparation thereof, and their use and novel reactive 1- or 2-component systems and cured compositions therefrom.
摘要:
A method of providing a high-explosive projectile with desired areas of fragmentation includes the following steps: securing a steel plate component in a circumferentially extending recess in the outer surface of a projectile body; directing an energy beam to outer surface portions of the steel plate component; heating, by the energy beam, narrow zones to a temperature above the melting temperature of the steel plate component to a predetermined depth thereof; and cooling the heated zones for effecting structural metallurgical changes in the steel plate component for obtaining the desired areas of fragmentation.
摘要:
A propellant igniter assembly includes a housing having ignition channels for the passage of an ignition flame through the housing; an igniter part accommodated in the housing; and a booster part accommodated in the housing and frontally adjoining the igniter part. The booster part has a booster charge which includes a first partial booster charge adjoining the igniter part and composed of a readily ignitable substance and a second partial booster charge adjoining the first partial booster charge and being separated thereby from the igniter part. The second partial booster charge entirely obturates all the ignition channels. The second partial booster charge has a burning behavior and a mechanical stability such that the ignition channels remain obturated for a short duration even after ignition of the second partial booster charge, whereby a firing impact is first retained in the booster part and is subsequently abruptly released in a concentrated form through the ignition channels.
摘要:
A sabot for a subcaliber projectile, preferably an arrow projectile, having an essentially cylindrical guide gage (8) of a lightweight material and a tail-side drive element (14) detachably connected thereto for tail-side support of the projectile body (1). The guide cage (8) has a radially inwardly-extending support wall (12) for supporting a projectile body (1) disposed therein in its forward to central region, and the drive element is a propelling disk (14) that is received by a circumferential or annular groove (13) in the tail region of the guide cage (8), which is segmented in the axial direction of the projectile body (1). As a result, a further reduction in weight can be accomplished with simpler fragmenting of the sabot that practically does not impair the projectile at all.
摘要:
The invention concerns polysiloxane compounds as W/O-emulsifiers, in textile softeners, antifoams, foam stabilizers and agriculture chemicals, in particular as W/O-emulsifiers for cosmetic uses.
摘要:
The invention relates to novel polycarbonate- and/or polyurethane-polyorganosiloxane compounds, processes for their preparation, their use, precursors for their preparation and reactive compositions which contain the precursors.
摘要:
The invention concerns polysiloxane compounds as W/O-emulsifiers, in textile softeners, antifoams, foam stabilizers and agriculture chemicals, in particular as W/O-emulsifiers for cosmetic uses.