Ordnance – Rocket launching – Having means restraining rocket from movement in launching...
Patent
1978-06-13
1980-01-22
Brown, David H.
Ordnance
Rocket launching
Having means restraining rocket from movement in launching...
85 77, 85 82, 403292, F16B 1306
Patent
active
041844084
ABSTRACT:
A shear pin assembly suitable for use in a rocket retention and release system is provided. Each shear pin has a head and a shank with a passageway extending axially along the length of the shear pin. In the rocket release system, the shear pin connects a shear pin ring to the rear end of the rocket. A hole to receive the shear pin is provided in both the shear pin ring and the rear end of the rocket. The hole in the ring extends completely therethrough and has a diameter less than the diameter of the hole in the rocket. The passageway in the pin has parallel sides in longitudinal cross-section at the head end of the pin and sides which taper inwardly towards the shank end of the pin at the shank end. When the pin is inserted into the holes to connect the ring and rear end of the rocket together, the pin is expanded by a mandrel so that a shank end portion of the pin in the hole of the rocket fills the cross-section of the hole. Preferably a solid plug is then inserted in the passageway of the pin by means of a punch. When inserted in the pin, the plug is located entirely in the shank end portion of the pin located in the hole in the rear end of the rocket. Preferably the outer end of the inserted plug is located just below the shear plane formed between the ring and the rocket.
REFERENCES:
patent: 1476833 (1923-12-01), Pleister
patent: 2248755 (1941-07-01), Hathorn
patent: 2366965 (1945-01-01), Johnson
patent: 3130629 (1964-04-01), Church
patent: 3605549 (1971-09-01), Moskowitz et al.
patent: 3820297 (1974-06-01), Hurd
patent: 4003288 (1977-01-01), Jeal
patent: 4026189 (1977-05-01), Akhagen et al.
patent: 4044591 (1977-08-01), Powderly
patent: 4046053 (1977-09-01), Alvi et al.
Clark Michael N.
Smith Donald L.
Brown David H.
Her Majesty the Queen in right of Canada as represented by the
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