26,924. Sturgess, G., and Sturgess, C. Dec. 11. Aerial machines without aerostats; adapted to travel also on land.-Relates to an arrangement whereby aerial machines are adapted to travel also on roads, which is shown as applied to existing machines and also to a machine with shortened transverse planes provided with additional supporting-surfaces carried by the road wheels ; these supporting-surfaces are capable of being tilted or warped, or the structure may be rotated so that the planes beat the air, steering being effected by a vertical rudder or by varying the plane of action of the screw propellers. As applied to a bi-plane of the Wright type, Fig. 1, the device comprises one or two tyred wheels A<1>, which encircle the main planes A of the machine and run on rollers B carried by the framework. Shock of landing, deadening.- When one road wheel only is used, the skates C are kept off the ground by runners D carried by pivoted rods D', depressed through the medium of compression springs D<7>, which serve to absorb the shock of landing. Aeroplanes.-In order that the width of the machine may be diminished, additional planes are carried between two wheels which can roll on the road. The main planes K, upon the lower one of which the aviator sits, are fixed between two disks J supported on a divided hollow shaft F, Fig. 6. Around the disks J are two floating wings M running on rollers M'. Mounted free in the rings M are spindles N<2> of additional planes N, which may be divided at N<1>. The planes are normally all horizontal, being kept so by an endless chain H<2>, which passes over chain-wheels H<1> on the axes N<2> and over a chain-wheel H on the central axis F<8>. The planes may rotate round the central axis in either direction in response to wind currents. Steering is effected (1) by tilting or warping the planes N, (2) by means of a vertical rudder operated by a foot-lever, (3) by altering the plane of action of the screw propellers. (1) The planes N may be tilted or warped by means of the chain H<2>. The chain-wheels H, H<1> are rotated through bevel-gearing when the hand-wheel F<3>, Fig. 6, is pushed or pulled, and the planes N are therefore tilted equally. By turning the hand-wheel F<3>, the shafts N<2> carrying the planes N, and consequently the planes, are twisted. (2) The vertical rudder Q and a rest-wheel Q<2> are turned by ropes Q<3> passing over pulleys Q<4>, Q<5> and through the hollow shafts F<5>, F<8> to a foot-lever Q<6>, Fig. 3. (3) The screw propellers 0, driven by engines O<4> through bevel-gearing partly carried by the shaft F, are mounted on shafts O<0> in a bearing O<5> pivoted on the shaft F. By means of a worm O<7> and wormwheel O<6> operated by a hand-wheel O<9> the bearing and propeller can be turned about the shaft F. Propelling.-The screw propellers may be supplemented by driving the rings M by any suitable means so that the planes N paddle or beat the air.