Abstract: An exemplary embodiment of the invention relates to determining aimpoint relative to a target located within a firing range. The target can be either fixed or moving, and if the target is moving then it can be mounted on tracks or controlled by servomechanisms. In addition to aimpoint, predicted projectile effects and personnel performance can be calculated for evaluation and for training. The firing range is mapped so that placement of infrared emitters is associated with specific targets. Placement of the emitter external to the target perimeter produces accurate results so long as the emitter is within the field of view of a camera mounted upon the projectile launcher. The invention results in large firing ranges with the ability to place targets wherever desired without decreasing aimpoint measurement accuracy.

Abstract: A die top assembly engaging with a rotating wheel (not shown) of a continuous extrusion apparatus includes a die top (22) formed with a part cylindrical face (34) coacting with the wheel cylindrical surface and is positioned in a shoe held in contact with the wheel. The die top (22), which is required to resist the very high extrusion pressure forces, is carried on a support block (30) and, at the face remote from the part cylindrical face (34), is formed with a recess (50) accommodating a die support ring (54) and spacer (52). Ports (28) registering with circumferential grooves in the rotating wheel extend from the part cylindrical face (34) to a semitoroidal channel (44) and extrudate supply chamber (46) extending around a central boss (80). A central mandrel die piece (72) is secured in position by means of a bolt (76) threaded into a blind bore (78) in the boss (80) and coacts with a cylindrical die (56) to form an extrusion orifice (86).

Abstract: A reflective safety device is provided which consists of an article made of light reflecting material worn on a person at night, so that the person can be seen by the lights of a motor vehicle to prevent accidents.