Abstract: This invention provides two broad features. First, there is a firearm having a movable ramp (20) for receiving a cartridge (12a) stripped from a magazine (10) thereon. The ramp (20) is situated behind and below the firing chamber (28) and is movable between a tilted position, in which the ramp (20) guides the cartridge (12a) upward as it advances towards the chamber, and an elevated position, in which it supports the cartridge (12a) in alignment with the chamber (28). The firearm includes a slide-bolt assembly for advancing cartridges (12a) into the chamber, and the ramp (20) and the slide-bolt assembly engage each other such that the ramp (20) moves to the elevated position as the slide-bolt assembly moves towards the chamber (28). Second, there is a firearm adapted for a dual clip (116a, 118a) magazine (100) so that either of two different types of cartridges (102a, 10 4a) may be chosen for firing.

Abstract: This invention provides two broad features. First, there is a firearm having a movable ramp (20) for receiving a cartridge (12a) stripped from a magazine (10) thereon. The ramp (20) is situated behind and below the firing chamber (28) and is movable between a tilted position, in which the ramp (20) guides the cartridge (12a) upward as it advances towards the chamber, and an elevated position, in which it supports the cartridge (12a) in alignment with the chamber (28). The firearm includes a slide-bolt assembly for advancing cartridges (12a) into the chamber, and the ramp (20) and the slide-bolt assembly engage each other such that the ramp (20) moves to the elevated position as the slide-bolt assembly moves towards the chamber (28). Second, there is a firearm adapted for a dual clip (116a, 118a) magazine (100) so that either of two different types of cartridges (102a, 104a) may be chosen for firing.

Abstract: An exercise apparatus features a mechanical arrangement in which the motion of a rotary passive resistance device is translated to bi-directional linear motion. The apparatus has a central columnar structure on which a traveler assembly is carried for movement in a generally vertical plane. The traveler assembly has a horizontal bar, mounted between arms, through which the one exercising applies effort to the apparatus. A counterweight is provided to balance the weight of the traveler assembly. First and second cables extend respectively up and down from the traveler assembly, across idler pulleys, and then respectively down and up to a common rotatably mounted drum assembly. Thus, movement of the traveler assembly results in winding of one cable onto the drum assembly, while the other is unwound. A rotary passive resistance device, preferably a magnetic particle brake, is connected to the drum to provide a controllable force which the user must overcome.