Abstract: The device contains a frame, a refrigeration mechanism with an evaporator, a mechanism to slightly defrost the ice formed around the protruding parts and to cause it to fall off, a water tank that is movably mounted on the frame, a water supply pipe which is located above the tank, a mechanism for moving the tank from an uppermost position around the above-mentioned protruding parts to a lowest position and vice versa, a mechanism for controlling the refrigeration mechanism and control the mechanism for moving the tank, and an upper grid that is hingedly mounted on the frame, is pushed up by the movement of the tank from its lowest to its uppermost position and protrudes before the uppermost position of the tank on the top in such a manner between the downward directed protruding parts of the evaporator that, when ice cubes are formed around these protruding parts already situated above all these ice cubes and cannot go down as long as all ice cubes have not fallen off, while the mechanism which controls the

Abstract: Water from a water tank is sprayed through spraying openings against a plate and ends, projecting underneath the plate, of metal rods. These rods are clamped between line portions through which cooling liquid flows in opposite directions. The excess water returns to water tank over a collecting tray provided with an outlet. A movable water-guiding member is mounted underneath this outlet and is connected to a float in the water tank. When nearly enough ice has been formed, the water level in the tank has so fallen that the float brings the movable member in a position whereby it diverts water to a discharge pipe. The minimum level in tank, with which the cooling cycle is stopped and fresh water is supplied to tank over the first mentioned plate, is then quickly reached.

Abstract: The apparatus for making ice blocks comprises a hollow body containing projecting parts faced downwards. Referigerating fluid and heating fluid are circulated separately through this body. A tray is around the projecting parts in its uppermost position. This tray is supported by a mechanism between an uppermost and a lowermost position and a water supply line comprising a cock opens into said tray. When ice has formed on the projecting parts, an electric circuit is closed and the cock opens for some time. Thus the tray falls. In the lowermost position water flows away out of the tray and therefore the tray rises up to its uppermost position.