Helge C C Kartman, Jorgen Vorup: Roller mill. F L Smidth, Pennie & Edmonds, May 22, 1979: US04155511 (6 worldwide citation)

A vertical roller mill resting on a mill foundation is disclosed in which a rotatable grinding table having an endless grinding path is driven by a driving mechanism located beneath the grinding table and in which the grinding table rotates on bearing means which are mounted on generally vertical su ...

Helge C C Kartman: Roller mill. F L Smidth & Co, Pennie & Edmonds, May 31, 1983: US04385730 (4 worldwide citation)

A nozzle ring assembly for use around a circular grinding path of a roller mill of the kind comprising a grinding table which is rotatable about a vertical axis, and grinding rollers urged against the grinding table. The nozzle ring assembly comprises a nozzle ring with circumferentially spaced guid ...