Patent GB-190930521-A (GB)
Title: Improvements in and relating to Aeroplanes, Airships and the like.
Inventor: BANKI DONAT
IPC: B64C17/00
Filed: 1909-12-30
Granted: 1910-12-30
Abstract: 30,521. Bßnki, D. Nov. 5, [Convention date]. Steering and balancing.- In an automatic control mechanism for flying-machines comprising a gravity-actuated regulator which operates on the slide valve of a fluid pressure motor actuating the balancing-planes, the motor and controlling mechanism are pivotally mounted on the flying-machine, and can be adjusted manually to vary the normal incidence of the machine. The regulator h, Fig. 1, is mounted on a lever 6 pivoted at k to a lever l connected to the piston-rod 1 ot the auxiliary motor a, and is linked by a rod 2 to the slide valves n. When the machine tilts, fluid under pressure is admitted by one of the valves to one side of the piston b which is moved to actuate the balancing-planes. At the same time, the point of support k of the regulator is moved in the same direction as the piston so that the valves n are moved back to a central position and the movement of the piston is stopped. A float contained in a cylindrical vessel may be used in place of the pendulum h; or, the regulator may consist of a pipe 4, Fig..3, containing liquid and provided at its ends with diaphragms 5 connected together and to the controlling-lever 6. The controlling-devices are pivoted at d, Fig. 1, to the frame of the machine, and are tilted by a hand-lever 7. The Specification in the original form, as open to inspection under Section 91 (3) (a), comprises also the following subject-matter. The regulator may be modified to prevent accelerations of the machine from affecting the controlling- apparatus. A ball or other valve m, Fig. 4<a>, (Cancelled), is inserted in the pipe 4, Fig. 3, between the diaphragms 5. When an acceleration takes place, the ball is forced against a seating on the pipe and closes it so that the inertia of the fluid in the regulator is prevented from acting on the diaphragm. In order to obtain a sufficient power for actuating the planes, and also a proper sensitiveness of the apparatus, two fluid-pressure motors arranged in series are employed. The first motor is provided with a distributor e', j<1>, Fig. 6<a> (Cancelled), of small diameter, and the piston b<1> is connected to the distributor e, f of large dimensions corresponding to the power required. The apparatus can be used for longitudinal or transverse stability. In an example shown in Fig. 6 (Cancelled), the apparatus is designed to actuate the lateral balancing-members which are connected to cords C<1>, C<2> passed around a pulley B. The shaft A of the pulley B is connected to the cross-head H of the piston of the actuating-motor a, which is controlled as previously described by a fluid regulator having diaphragms N<1>, N<2>. The link s t actuating the distributor e f is connected by a rod d to the pulley B so that movement of the pulley moves back the distributor to its central position. The motor and regulator are carried by a lever D which is adjusted by cords E<1>, E<2> to vary the normal incidence of the machine. The lever D is normally loose on the shaft A of the pulley B, but can be connected to the pulley by a spring bolt when it is desired to actuate the balancing- members manually. This subject-matter does not appear in the Specification as accepted.