Ammunition and explosive-charge making – Loading fireworks and bursting charges – Placing bursting charge in projectile
Patent
1985-02-20
1987-08-25
Lechert, Jr., Stephen J.
Ammunition and explosive-charge making
Loading fireworks and bursting charges
Placing bursting charge in projectile
86 201, 86 29, 86 30, 86 33, 102430, 141 73, F42B 300, F42B 3302, C06D 108
Patent
active
046884653
ABSTRACT:
The present invention relates to a method and an apparatus for production of cartridged propellant charges for barrel weapons with charge weights up to 1.4 kg/liter.
According to the invention, more granular or particle-shaped propellant powder is driven down or compacted than can be housed in free-running condition within the same volume by means of a piston or plunger (6) in a single stage down into a case (4) the inside of which is coated with a friction-reducing coating. The piston or plunger (6) can then be provided with an elastically deformable leading part (7) of e.g. rubber and/or with a conically tipped leading end (7a). According to one variant of the invention the powder is pressed down into a bag (12, 13) of combustible fibre material which has been inserted in advance down into the case (4) coated internally with a friction-reducing coating or which has itself been impregnated with a friction-reducing coating.
The invention also enables the powder to be compacted to advantage at a temperature that is higher than the room temperature.
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Bjorkqvist Nils-Gunnar
Bjorn Lars-Erik
Melhus Ulf
Olsson Mats
Taylor Dennis
Aktiebolaget Bofors
Lechert Jr. Stephen J.
Locker Howard J.
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