Abstract: An apparatus is disclosed for internally holding an at least partially hollow substrate having at least one open end. The apparatus includes a member defining a fluid passageway, a normally inflated porous material mounted on the member in communication with the fluid passageway of the member, and a mechanism, in communication with the member, for deflating the porous material, the deflating mechanism being de-energized in response to the porous material being disposed into the opening in the substrate for enabling the porous material to return to being normally inflated to hold the substrate.

Abstract: An alloy treatment process is disclosed which comprises providing particles of an alloy comprising amorphous selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof, the particles having an average particle size of at least about 300 micrometers and an average weight of less than about 1000 mg, forming crystalline nuclei on at least the surface of the particles while maintaining the substantial surface integrity of the particles, heating the particles to an initial temperature between about 50.degree. C. and about 80.degree. C. for at least about 30 minutes to form a thin, substantially continuous layer of crystalline material on the surface of the particles while maintaining the core of selenium alloy in the particles in an amorphous state, and rapidly heating the particles to at least a second temperature below the softening temperature of the particles that is at least 20.degree. C. higher than the initial temperature and between about 85.degree. C.

Abstract: A web having phosphor particles uniformly distributed on at least one outer surface of the web, the phosphor particles being substantially white or colorless under ambient room light illumination and which upon excitation by ultraviolet light phosphoresces to emit visible radiation having a wavelength between about 400 nanometers and about 500 nanometers for a detactable period after ultraviolet excitation.