Ordnance – Automatic – Firing device operation or control
Patent
1985-12-06
1987-10-06
Bentley, Stephen C.
Ordnance
Automatic
Firing device operation or control
89142, F41C 1706, F41C 506
Patent
active
046974954
ABSTRACT:
A tripping mechanism is disclosed for the conversion of automatic rifles of the so-called closed-bolt type to rifles of the open-bolt type. The components of the mechanism are premounted within a box-like support which is readily insertable in the trip box of a conventional automatic rifle. The mechanism includes a trigger, a trip block for arresting the bolt carriage in the open, armed position, a connecting rod attached to and displaceable with the trigger and cooperating with the trip block during the disengagement of the bolt carriage from its blocked position, a safety bolt operating also as selector of the firing mode by cooperating with a lever, a lever for engaging the trigger during the automatic, continuous firing mode, and, finally, a safety block for arresting the bolt carriage in the event of accidental disengagement from the trip block.
REFERENCES:
patent: 1911494 (1933-05-01), Floyd
patent: 2058746 (1936-10-01), Westinger
patent: 2324125 (1943-07-01), Van Horn et al.
patent: 3446114 (1969-03-01), Ketterer
Bentley Stephen C.
Fabrica d'Armi P.Beretta S.p.A.
Johnson Stephen M.
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