Abstract: A method for producing glass sands including the steps of crushing glass articles to convert them into fine fragments so as to form glass fragments, then agitating finely crushed glass fragments to eliminate sharp portions while at the same time forming glass fragments into glass sands with a predetermined granular configuration, then sieving foreign materials which have been entrapped into glass sands formed in a granular configuration, while at the same time sorting out glass sands according to their grain sizes.

Abstract: An apparatus for producing glass sands by a method which includes the steps of crushing glass articles to convert them into fine fragments so as to form glass fragments, then agitating finely crushed glass fragments to eliminate sharp portions while at the same time forming glass fragments into glass sands with a predetermined granular configuration, then sieving foreign materials which have been entrapped into glass sands formed in a granular configuration, while at the same time sorting out glass sands according to their grain sizes.

Abstract: Glassware such as glass bottles and the like is crushed, graded, screened and collected in accordance with the size of the crushed glass. Glassware such as glass bottles is supplied to a glassware charging frame passed to a first crusher and crushed by the first crusher. Metal is removed from the glassware crushed by the first crusher. The thus crushed glassware with iron pieces having been removed is supplied to a last crusher. Glassware crushed by the last crusher is supplied to a sieve device. The glassware crushed by the last crusher is selected in accordance with grain size by the sieve device. The glassware selected in accordance with grain size then is collected.

Abstract: An apparatus for disposing of medical industrial waste by crushing comprises an opening for use in putting the industrial waste therethrough, a door for use in opening and closing the opening, a waste conveyor unit, a crushing unit for crushing the medical industrial waste conveyed by the conveyor unit, a discharging unit for discharging the waste crushed by the crushing unit, a container for storing the crushed waste discharged from the conveyor unit, and a sterilizing unit. The crushing unit includes fixed blades and rotary blades and the crushed material discharged from the crushing unit is stored in the container as the rotary blades rotates.