专利名称：IMPROVEMENTS IN AND RELATING TO PYROTECHNIC DEVICES
发明人：WILLIAM RUPERT BROOKE环装
关于下雨的句子ELSTOW,ANTHONY RONALD
WITT,LEONARD MORGAN
CHANDLER,DUDLEY CHARLES MURRAY 申请号：AU1398470
申请日：19700416心累了怎么办
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公开号：AU1398470A
公开日：
佛山攻略
身上长红痣
19711021
专利内容由知识产权出版社提供
猴面小龙兰摘要：1312444 Signal devices PAINS-WESSEX Ltd 14 April 1970 [23 April 1969 9 Feb 1970] 20839/69 and 6008/70 Heading F3A A signal device compris a signal rocket 1, Fig. 1, houd in a discharge tube 2, and mechanical means 40 coupled to an igniter 6 for the rocket propellant charge 5, the mechanical means 40 being movable to effect displacement of closure means 2a of the discharge tube and to operate the igniter after displacement of the closure means. The mechanical means 40 can be unscrewed from the discharge tube and, during the rotational movement, cam followers 42 climb cams 43 thereby lifting the rocket and displacing the closure means 2a. Instead of using the rocket a parate sleeve may be ud to displace the closure means. Movement of the unscrewed mechanical means 40 away from the the discharge tube tensions a lanyard 39 and pulls a socket 37 rearwardly to a position where it releas a striker 33. A spring 38 drives the striker against a percussion cap 27. A delay fu 23, ignited by the percussion cap, ignites a primer 21 for the charge 5, via relay 22. The propellant gas from the
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charge 5 are exhausted through apertures (not shown) in the discharge tube, uncovered by rotation of the mechanical means 40, or are exhausted through the aperture remaining after the removal of the mechanical means. A flare 4 attached to a parachute 12 is ejected from the rocket along its trajectory. The igniter 6 can be carried by the rocket or by the discharge tube, in which ca, radial fins (not shown) make a sliding fit in the rocket casing 3. In another embodiment, Fig. 2, the mechanical means 40 carries a tubular member 50 which, after unscrewing of the mechanical means 40, can be slid along the discharge tube to an extent limited by a stop 51. The igniter 6 is operated before the stop is reached. No delay fu is provided, and the primer 52 is applied directly to the surface of of the rocket propellant charge 5. A polyethylene member 55 supports the nozzle 56 of the rocket and is melted by the hot combustion gas from the ignited charge 5. The signal devices are waterproof so that they can be ud at a.
申请人：PAINS-WESSEX LIMITED
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