Abstract: A drying machine for the heating and drying of wet, comminuted materials comprises a stationary housing with a rotary, hollow rotor (1) with the admission and conducting away of a heating medium, and where the rotor has a number of annular drying elements (2) with heating channels (3), and comprises a number of lifting elements (4) secured by welding along the circumference of the drying elements. The lifting elements are plate items which extend over at least two consecutive drying elements, and consist of a lifting part (8) and a deflection part (7).

Abstract: A drier for the heating and drying of wet, comminuted organic materials comprises a stationary housing with a revolving, hollow axle or rotor (1) with inlet and outlet for a heating medium, and where the rotor has a number of annular drying elements (2) disposed at intervals. The drying elements (2) are heated by the heating medium through heat channels (3). On or between the drying elements, lifting elements (4) are disposed along the circumference. Adjacent lifting elements are disposed in a displaced manner from each other to the same side along the outer periphery of the annular elements (2), so that the leading edges (11) extend along a helical line. The drier hereby provides an improved drying and mixing and has a better efficiency. Furthermore, one can determine how quickly the material being dried shall travel forwards, or how long it shall remain in a certain zone. The invention also relates to a lifting element for the drier.

Abstract: A system for cooling and freezing goods by cooled air is described, in which a series of large, rectangular plates carrying the goods pass over a first roller track into an ascending lift in a freezing room. The lift successively receives the plates and carries them stepwise to the top of the freezing room where the plates are carried over in a descending lift, which is operated in time with the ascending lift, and which successively deposits the plates on a second roller track for removal from the freezing room.

Abstract: A refrigeration plant of the absorption type in which the chilled surfaces of the absorber, condenser, and other coolers comprise water-sprinkled tube batteries, said batteries being arranged vertically and in parallel and having a common sprinkling system for distributing the water as a film on the outside of the tubes.