F - Mech Eng,Light,Heat,Weapons – 41 – A
Patent
F - Mech Eng,Light,Heat,Weapons
41
A
89/8
F41A 19/31 (2006.01)
Patent
CA 1187319
ABSTRACT "Automatic fire-arm". The fire-arm includes a casing to which a bar- rel is fixed, and a chamber formed in the casing adja- cent the breech of the barrel, in which a bolt carrying a firing pin is movably mounted. The bolt is movable through the effect of the pressure of gases produced during firing from a forward or closing position, in which it closes the breech, to a withdrawn or open po- sition against the action of resilient means which bias it into the closing position. Within the chamber is mounted a hammer block which is movable between a withdrawn or arming position and a forward or striking position in which it is able to act on the firing pin. Resilient means bias the hammer block into the forward striking position. The fire-arm further includes: - a movable retaining member which is able to adopt a rest position in which it allows the joint movement of the bolt and the hammer block from their respective forward positions to their respective with- drawn positions, and a working or retaining position in which it retains the hammer block substantially in its withdrawn position when the bolt is moved towards its forward closing position. The retaining member is mo- ved from the rest position to the working position by the movement of the bolt towards its withdrawn position and is moved from the retaining position to the rest position only when the bolt is in the last part of its closing movement. A control member, which is control- led by the trigger, cooperates with the retaining member and is able to adopt a rest position in which it holds the retaining member in the working position, when the trigger is released, and a working position in which it allows the movement of the retaining member from the working position to the rest position, when the trigger is pulled. (Figure 1)
402434
Mccarthy Tetrault Llp
Sites - Societa Italiana Tecnologie Speciali S.r.l.
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