An improved drum rim for a drum in which a portion of the periphery of the upright section of the rim is either omitted or substantially reduced.

A drum having transparent shell and heads whereby the performer thereon can be completely viewed during his performance.

A drum set is formed from two drum shells, each having an extension member. One extension has a recess which receives the other extension to maintain the drum shells in spaced and fixed angular orientation. Ceramic, plastic and wood arrangements are described.

Polyolefin drums in which the olefin polymer has been nucleated with from 1,500 to 10,000 ppm based on the weight of the polyolefin of a nucleating agent which is a dibenzylidene derivative of sorbitol or xylitol can, when full of liquid, withstand a drop of at least 10 feet without failure.

Support for drums of various sizes and shapes comprising a shelf with three or more radial arms, a mounting element at the bottom of the shelf for mounting the support on a stand, and three or more sticks distributedly arranged at the periphery of the shelf and projecting upwards. The support allows playing the drum when the player is standing with the support being mounted on a stand, or sitting with the support standing on the floor.

A reclaiming process including providing a drum including a hollow cylindrical substrate coated with at least one electrophotographic imaging layer, the substrate having an outer surface describing a curvilinear plane, removing the imaging layer, and removing material from the substrate to a radial distance between about 10 micrometers and about 400 micrometers from the curvilinear plane to form a reclaimed substrate having a total indicated run out variation mean of less than about 160 micromet...

A crop stripper has at least one drum (6a, 6b) with several axially extending series of stripping teeth (8). The drum is rotatably in end supports. The tooth roots (26) at the ends of the drum have an edge profile inclined radially away from the adjacent supports to deflect plant stems which contact these profiles during the operation of the stripper away from the supports, so reducing the tendency for the stems to become trapped between rotor and support. A capping (32) on the support overlaps ...

A drum tensioning system adapted to place a minimum of stress on the drum shell has a plurality of C-shaped clips acting on the counterhoop to apply tension to the drum head. The head passes over a cylindrical side wall which has flanges extending radially outwardly. The tensioning bolts pass through apertures in the flanges directly beneath the C-clips and are threaded into the base of the C-clips. The C-clips and counterhoop have mating surfaces which provide stability to the system. The side ...

A photosensitive drum adapted for use in electronic copying machines and laser beam printers, the drum made of aluminum-based alloy and supporting a photosensitive recepter thereon, the aluminum-based alloy having a composition consisting essentially of 0.5 to 8.0% of Ni, and preferably, one or more additives selected from a group of 0.05 to 1.5% of Mn, 0.05 to 1.0% of Cr, 0.05 to 0.5% of Zr, 0.5% or less of Ti, 0.1% or less of B, 0.05 to 7.0% of Cu, 0.05 to 7.0% of Mg, 0.05 to 8.0% of Zn, 0.05 ...

A nesting drum and a method of making the same is provided. The drum comprises a shell which has a necking at the bottom to accommodate a double seam between the shell and the closure. The closure has a raised circular center and a plurality of ribs which re-enforce the shell to resist large loads. '