Abstract: A jaw crusher assembly comprising a jaw crushing apparatus and a service platform. The jaw crushing apparatus having first and second opposing jaws, each opposing jaw having a crushing face. The crushing faces opposing each other in an oblique relationship when the opposing jaws are in an at least partially opened state. The service platform provides at least two service configurations within the opposing jaws and being operable between a first service configuration and a second service configuration by rotation of the service platform.

Abstract: An improved active grate consisting of at least two elongated rockers positioned parallel to one and another, each rocker having a lower surface and an upper surface and configured to rotate back and forth about their longitudinal axis. Each individual rocker is further configured to rotate in the opposite direction of the adjacent rockers such that any pair of adjacent rockers alternately forms a void allowing material to pass through active grate when rotating in one direction into a first position, and closes the void when rotated in the opposite direction in a second position. The active grate finds particular utility in a combined gasification/vitrification waste treatment system, where it is used to pass partially oxidized materials from a gasification chamber to a vitrification chamber. The rockers include a coolant loop through the longitudinal axis of the rockers.

Abstract: A rock and ore pulverizer or crusher device having a generally cylindrical elongate mortar defining a crushing chamber. The mortar is rockable or oscillable by means of a cradle which is driven through an eccentric drive apparatus. A generally cylindrical elongate pestle is secured within the mortar and independently retained therein by a flexible cable and swivel arrangement. The head end of the pestle is preferably tapered and provided with grooves to retain the material fed into the device. The entire device is installed at a desired inclination and material is introduced into a feed trough ahead of the pestle to be crushed as the material moves along the pestle and relative motion is imparted between.