Abstract: In the method of increasing the detonation energy in an electromagnetic fuze system of a low-acceleration projectile a detonator generator which is held in an inactive or rest position by an elastic force, is accelerated along a predetermined travel path in the rear portion of a housing at the onset of the firing acceleration. The detonator generator is accelerated such that the detonator generator impacts upon an impact body which is provided with a central bore. As a result, a reaction member of the detonator generator inactivates its mechanical safety device and is accelerated, thus providing the detonation energy. In the retarding phase the detonator generator is returned into its original position by means of the elastic force and thus is ready for detonation. In comparison to known methods and apparatus there can thus be dispensed with an external power supply, whereby safety is increased with respect to maintenance, tests and firing.
Abstract: A method for reducing the volatile component content of crude high molecular weight polyesters containing said component. The method comprises first contacting the crude polyester with steam, or a mixture of steam and inert gas and/or air, at a temperature of 100.degree. to 245.degree. C. to form a partially treated polyester. The second step comprises further contacting the product of the first step with an inert gas and/or air at a temperature of 200.degree. to 245.degree. C. to produce the purified polyester.In particular, the method is intended for use with such polyesters as polyethylene terephthalate which contains acetaldehyde as the undesired volatile component.A new method of analysis useful in the foregoing process is also disclosed. The products of the new process are primarily intended for use in the manufacture of plastic bottles or similar containers for use in the foodstuffs industry.
April 21, 1983
Date of Patent:
May 27, 1986
Hussain El-Ghatta, Hans-Werner Philipp, Richard Sailer, Bruno Domeisen
Abstract: The invention is directed to the provision of a safety device to prevent premature detonation of ammunition, particularly low spin projectiles of the type in which a primer pellet is positioned in a rotor which rotates from an unarmed to an armed position upon firing. The safety device is biased under the action of the spring to project into a groove in the rotor so as to be engageable with an end face of the groove. If the projectile is fired with normal acceleration, the resulting force will cause the safety device to become disengaged from the groove in the rotor against the action of the spring. If acceleration is below normal, the safety device will engage the rotor and lock it in an unarmed position. An inertial mass lock is also provided as an additional measure against accidental or premature arming of the projectile.
Abstract: The instant invention relates to thermoplastically processable polyamides which are rendered flame retardant by means of a new flame retarding agent; the conversion product of cyanuric acid and triazine compounds having free --NH.sub.2 in a molar ratio of at least 2 triazine nuclei per mole of cyanuric acid. The properties of polyamide thermoplasts are changed only slightly through the incorporation of the new flame retarding agent.