초록 ▼

A breech assembly for a muzzle loader. A breech block is fitted into the gunstock and receives the barrel. The breech block includes a first bulkhead disposed over the barrel breech end and has a first bore with an axis parallel to the barrel axis. The breech block includes a second bulkhead spaced

A breech assembly for a muzzle loader. A breech block is fitted into the gunstock and receives the barrel. The breech block includes a first bulkhead disposed over the barrel breech end and has a first bore with an axis parallel to the barrel axis. The breech block includes a second bulkhead spaced from the first bulkhead creating a space there between. The second bulkhead has a second bore in axial alignment with the first bore and the breech block includes a vertically disposed chimney bore communicating between the bottom of the space and the outside atmosphere. A nipple is disposed in the bore facing the space and has a third bore sized to releasably receive a percussion cap. The nipple has a fourth bore communicating between the bottom of the third bore and the barrel interior. A cylindrical sliding sleeve is disposed within the second bore and is slidable between closed and retracted positions. The sliding sleeve has means in the sidewalls for the passage of gases therethrough from the nipple to the chimney bore when the sliding sleeve is in the closed position. A cylindrical firing pin assembly is disposed within the sliding sleeve and is slidable between closed and retracted positions. The firing pin assembly has an axial fifth bore with a firing pin slidably disposed therein and spring means for biasing it towards the nipple. A trigger assembly holds and releases the firing pin against the force of the spring means.

대표청구항 ▼

In a muzzle loader having a barrel with a breech end, an improved breech assembly comprising: (a) a breech block member adapted to be fitted into a gunstock and to receive the barrel in combination with the gunstock, said breech block member including a first bulkhead disposed over the breech end of

In a muzzle loader having a barrel with a breech end, an improved breech assembly comprising: (a) a breech block member adapted to be fitted into a gunstock and to receive the barrel in combination with the gunstock, said breech block member including a first bulkhead disposed over the breech end of the barrel, said first bulkhead having a first bore therein having an axis parallel to the axis of the barrel, said breech block member further including a second bulkhead spaced from said first bulkhead to create a space therebetween, said second bulkhead having a second bore therein in axial alignment with said first bore, said breech block member additionally including a vertically disposed chimney bore communicating between the bottom of said space and the outside atmosphere; (b) a nipple member disposed in said first bore, said nipple member having a third bore therein having an axis parallel to the axis of the barrel and facing into said space, said third bore being sized to releasably receive a percussion cap therein, said nipple member further having a fourth bore therein communicating between the bottom of said third bore and the interior of the barrel at the breech end thereof whereby a percussion cap detonated in said third bore will in turn detonate gunpowder disposed in the barrel; (c) a cylindrical sliding sleeve disposed within said second bore, said sliding sleeve being slidable between a closed position against said first bulkhead to cover said space and said nipple member and a retracted position spaced from said first bulkhead to expose said space and said nipple member, said sliding sleeve having means in the sidewalls thereof for the passage of gases therethrough from said nipple member to said chimney bore when said sliding sleeve is in said closed position; (d) a cylindrical firing pin assembly disposed within said sliding sleeve, said firing pin assembly being slidable between a closed position close adjacent said nipple member and a retracted position spaced from said nipple member to expose said nipple member, said firing pin assembly having an axial fifth bore therethrough and including a firing pin slidably disposed within said fifth bore and spring bias means for urging said firing pin towards said nipple member; and, (e) trigger means disposed in said breech block member for holding said firing pin retracted from said nipple member against the bias force of said spring bias means and for releasing said firing pin to move towards said nipple member from the bias force of said spring bias means.