Abstract: A caravan having a lower body portion and an upper body portion with at least one hinge connecting the lower body portion to the upper body portion at one end of the caravan. The hinges connecting the upper and lower body portions allows the upper body portion to rotate relative to the lower body portion about an axis from a first position, where the upper body portion and the lower body portion are in close abutment, to a second position, where the upper body portion and the lower body portion have been rotated a predetermined distance about the hinge, so that the upper body portion is elevated above the lower body portion and no longer in close abutment to the lower body portion.

Abstract: A refuelling system for use with an aircraft, and a related a hand-held control apparatus for use in an aircraft refuelling system. The hand-held control apparatus for use in the aircraft refuelling system is intended for use in refuelling systems in which fuel is delivered to an aircraft from a location remote from the aircraft via a refuelling nozzle at an end of a hose, which is wound upon a hose reel at the remote location. The hand-held control apparatus, includes a control trigger for transmitting of an activation signal for activating a refuelling process, so that fuel is delivered from the refuelling nozzle at the end of the hose to the aircraft, along with a device for transmitting a fault signal for shutting down fuel delivery. Additionally, included is device for changing the control trigger from transmitting the activation signal to a hose reel re-wind mode, so that activating the control trigger causes a signal to be transmitted for effecting a re-wind of the hose reel.

Abstract: A method for the simultaneous production of sorbitol and either gluconolactone or gluconate from glucose and fructose. To this end to produce sorbitol and gluconolactone, glucose and fructose are reacted in the presence of a cell or cell-free extract of a bacteria, which contains the enzyme complex glucose/fructose transhydrogenase including the tightly bound co-factor(s), under condition whereby the further metabolism of gluconolactone is substantially prevented. In order to produce sorbitol and gluconate glucose and fructose are reacted in the presence of a cell or cell-free extract of a bacteria which contains an enzyme system comprising the enzyme complex glucose/fructose transhydrogenase including the tightly bound co-factor(s) and the enzyme gluconolactonase. This reaction is carried out under conditions whereby the metabolism of gluconate is substantially prevented. Preferably the bacteria used in this process is of the genus Zymomonas and most preferably of the species Zymomonas mobilis.