Abstract: A clamp is attachable to a rim or rim region of a drum, and is suited for resiliently retaining an ancillary drumstick such that a terminal end of the ancillary drumstick is positioned above a skin of the drum, and advantageously spaced apart from the skin by a selected distance, allowing a single drumstick strike to the ancillary drumstick by another drumstick held by the drummer to create multiple hits by the clamped ancillary drumstick in response to a drum strike by the hand-held drum stick.

Abstract: A clamping device has several clamping element receptacles each with a clamping element held by the clamping element receptacle. The clamping element receptacles have an inclination running obliquely to a clamping direction of the clamping device and by means of which the clamping element is guided. The clamping element has a clamping jaw support and the clamping jaw is connectable to the clamping jaw support. The clamping jaw engages in an undercut provided on the clamping jaw support and is additionally fixed by means of a positive fixing means to the clamping jaw support when it is connected to the clamping jaw support.

Abstract: Disclosed is a portable demilitarization apparatus and system for segmenting an ordnance and is comprised of a fixed housing having a gantry/robotic positioning system, a high pressure water jet cutting head, and a rotational drive subassembly and a slideable main assembly comprised of a cradle subassembly, a centering ring subassembly, a collection subassembly and a rotational drive mechanism.

Abstract: A rock holding device, which can be mounted in a rock-saw vise in such a way that rocks gripped by this device are held firm and secure so they can be sliced by a lapidary (diamond-blade) saw. The device comprises a plate having slidably mounted thereon a finger with a first bevelled surface and bars fixedly mounted on the plate and having second and third bevelled surfaces facing the first bevelled surface.