Patent GB-191225348-A (GB)
Title: Improvements in Safety Balanced Air Machines.
Inventor: ABSALOM GEORGE MAHLON
IPC: B64C1/00
Filed: 1912-11-05
Granted: 1913-12-05
Abstract: 25,348. Absalom, G. M. Nov. 5. Aerial machines without aerostats.-In a machine of the aeroplane type, the car is suspended from the plane frame so as to provide a low centre of gravity of the machine, and means are provided for adjusting the planes relatively to the car about longitudinal and transverse axes. Adjustable propellers are mounted at the sides of the plane frame, and a main propeller is carried by a longitudinally extending support which is pivotally mounted about a transverse axis on the car frame. The carriage for running on land carries a vertical plane at the rear, and is adjustable about a vertical axis for steering in the air and on land. Steering and balancing ; propelling; aerial machines adapted to travel also on land ; planes, arrangement of.-The frame 33 carrying the supporting-planes 52 is pivoted at 32 to a frame 31 which is pivoted about a transverse axis 30 to the frame 2 of the car, so that the planes can be adjusted about longitudinal and transverse axes under the control of the aviator. Adjustment of the planes about the longitudinallyarranged pivots 32 is effected by a band-wheel 45, which drives, through worm gear, a pinion engaging a rack 39 on the lower part of a semicircular bar 37 attached at its ends to the frame 33. Adjustment of the planes about the transverse pivots 30 is effected by rods 80, 81 secured to the front and back of the frame 31 and connected by a link 84 to a lever 83 pivoted at its upper end to the car frame 2. The lever is adjusted by a link 87 connected to an arm 86 secured to a shaft 85 carrying notched disks 88, 89. A spring pawl 90 is adapted to engage with the disks 88 to lock the shaft. A hand-lever 91, free on the shaft 85, is adapted to be connected to the shaft by a tooth engaging the disk 89 so that the shaft can be turned manually. Mounted in brackets at the sides of the plane frame 33 are adjustable screw propellers, the shafts 65, Fig. 5, of which are carried by arms 66 secured to a toothed ring 62 mounted on an annular support 61. The propellers are driven by the shaft 69, and the rings 62 on the two sides of the machine can be simultaneously adjusted by pinions on a transverse shaft 71 which is actuated by the aviator through worm gear. The shaft 96, Fig. 3, of the main propeller is carried by a frame 93 mounted on the transverse shaft 30 within the frame 31. The frame 93 is adjustable about the shaft 30, to vary the direction of the thrust of the propeller, by links 98, 99 which which are operated through worm gear from the hand-wheel 108. The motor may be arranged on the front part of the frame 93, to balance the weight of the propeller about the shaft 30. The lower frame 1, carrying at its forward end the land-wheels and at its rear end vertical and horizontal vanes, is adjustable about a central vertical axis 12 for steering either on the ground or in the air. A gear wheel 13 on the shaft 12 is rotated by a wheel on a shaft 15 turned by a hand-lever 21 having a pawl 20 which co-operates with a toothed wheel 19<a> secured to the shaft. A brake shoe 19 on the shaft 15 prevents too free a movement of the lower carriage. Planes, construction of.-The planes comprise sheets of fabric 52, Fig. 1, stretched between levers 50, pivoted at 51 to the extremities of the frame 33. The levers are maintained in the extended position by struts 53, the upper ends of which engage with sockets 55 on the lever.