Abstract: A drum having an annular rim is connected to a pedal assembly by a clamp having an outer clamp part engaging an outer surface of the rim only at a pair of locations axially spaced along the rim and an inner clamp part generally aligned with the outer part and engaging an inner surface of the rim only at a pair of locations axially spaced along the rim and lying between the locations of the outer clamp part. The clamp parts are pressed toward each other against the respective surfaces of the rim, and a coupling secures the clamp parts to the pedal assembly.

Abstract: A drum having an annular rim is connected to a pedal assembly by a clamp having an outer clamp part engaging an outer surface of the rim only at a pair of locations axially spaced along the rim and an inner clamp part generally aligned with the outer part and engaging an inner surface of the rim only at a pair of locations axially spaced along the rim and lying between the locations of the outer clamp part. The clamp parts are pressed toward each other against the respective surfaces of the rim, and a coupling secures the clamp parts to the pedal assembly.

Abstract: A stand or tripod for receiving and holding objects, particularly musical instruments and/or accessories includes a center shaft and adjustable legs which are slidably mounted on the center shaft, wherein at least one of the legs can be swung about the center shaft. The legs are connected to sleeves arranged at the bottom end and at the top end of the shaft, wherein each sleeve is composed of a pair of sleeve members which are concentrically nested into one another.

Abstract: A swivel joint for an essentially rod-shaped object, such as, a tripod, a leg or a similar support or holder for devices, particularly for musical percussion instruments, includes two joint members which are movable relative to each other and can be locked by a clamping device. The clamping device is constructed in such a way that it can simultaneously be used for clamping the rod-shaped object. In an annular end face facing away from the stationary joint member, the ring has diametrically oppositely arranged prismatic radial recesses which correspond to openings in the wall of the sleeve. When the radial recesses and the wall openings are in an aligned position, the rod-shaped object can be inserted into the swivel joint, such that the rod-shaped object extends through the radial recesses of the ring and the axial wall openings of the sleeve.

Abstract: A membranophone includes a principal skin or head skin and a secondary skin as well as a skin tightening device and/or tuning device. The skin tightening and/or tuning device includes rod-shaped tightening elements at least for the head skin, wherein the tightening elements are arranged uniformly distributed over the outer circumference of the resonator shell of the membranophone, and wherein the tightening elements are supported by support members fastened to the resonator shell, on the one hand, and the tightening elements adjustably act through threaded members on the tightening hoop for the skin or skins, on the other hand. Damping members are arranged between the support members and the resonator shell or kettle. The skin or skins are held by winding hoops and can be tightened and, thus, tuned by means of the winding hoops and the tightening hoops relative to the opening rim of the resonator shell.

Abstract: A guide for a stack of disk-shaped elements, especially sheet metal can lids has an extruded bar formed unitarily with a hollow longitudinal guide segment having a cylindrical inner guide surface enclosing a channel in which the stack is guided and a hollow longitudinal supporting and connecting segment of box-shaped cross section connected to the guide segment and extending along the guide segment to support the guide segment.