Abstract: A security locker is for securing articles externally on a vehicle. The locker comprises a locker having at least one opening facing the exterior of the vehicle when the locker is fitted thereto, wherein the opening provides access to the interior of the locker. A door is moveable between an open position in which the interior of the locker is accessible through the opening from outside of the vehicle when the locker is fitted thereto, and a closed position in which the locker is inaccessible. The locker includes locking device that, when activated, locks the door in a closed position to prevent unauthorized access to the locker, and when deactivated unlocks the door to enable access to the locker. An input device is operatively connected to the locking device, wherein the locking device is accessible from outside the locked vehicle and it deactivates the locking device when an identifiable code is entered to thereby allow keyless entry to the locker.

Abstract: A security locker for securing articles externally on a vehicle. The locker comprises a locker having at least one opening facing the exterior of the vehicle when the locker is fitted thereto, wherein the opening provides access to the interior of the locker. A door is moveable between an open position in which the interior of the locker is accessible through the opening from outside of the vehicle when the locker is fitted thereto, and a closed position in which the locker is inaccessible. The locker includes locking means that, when activated, locks the door in a closed position to prevent unauthorised access to the locker, and when deactivated unlocks the door to enable access to the locker. An input device is operatively connected to the locking means, wherein said locking means is accessible from outside the locked vehicle and it deactivates the locking means when an identifiable code is entered to thereby allow keyless entry to the locker.

Abstract: A method and apparatus are disclosed for continuously drying, preferably with agglomeration and/or coating and sizing, and separating a solid product from a liquid feed material, especially bauxite slurry which passes through a very sticky phase during drying, without significant encrustation of the equipment used.

Abstract: In order to control the sodium oxalate level in the liquor employed in the Bayer process for the production of alumina, a part of the spent liquor recovered from alumina trihydrate precipitation stage is concentrated by evaporation to render it supersaturated with respect to sodium oxalate. The thus concentrated liquor is then sprayed onto a packing in an enclosed space under conditions such that the supersaturation of the droplets at impact on the packing exceeds a critical supersaturation. The sprayed liquor deposits sodium oxalate on the packing and is recovered for recirculation to the process circuit.