GB402225A - Apparatus for the automatic operation of the vertical and transverse stabilising of aircraft - Google Patents

Abstract

402,225. Clinometers. MESSGERATE BOYKOW GES., Goerz Allee, Zehlendorf, Berlin. - (Assignees of Boykow, J. M. ; 2A, Fontanestrasse, West Lichterfelde, Berlin.) Oct. 14, 1932, No. 28769. Convention date, Oct. 14, 1931. [Class 97 (ii).] An aircraft is provided with two bodies each containing two symmetrically disposed nozzles, one pair being in a vertical plane and directed upwards and downwards and the other pair being in a horizontal plane, these nozzles through differential manometers automatically controlling the elevator and ailerons or adjusting an indicator on the dashboard. Two streamlined bodies having symmetrically disposed nozzle openings d<1>, d<11> are arranged on the wings, one with its plane ofsymmetry parallel to a horizontal plane and the other with its plane parallel to a vertical longitudinal plane. The nozzle throats are connected to capsules m<1>, m<2> which normally hold a pointer z in mid position between contact strips c, Fig. 3, carried by a spindle b which is constrained by a spring f, levers g, and a crank n to assume a normal position. Any movement of the pointer z energizes magnets e<1>, e<2> to move the spindle b in a direction to follow up the pointer, this motion being damped by a fluid friction device p, this friction device also resisting the return motion produced by the spring f. Simultaneously, rotary magnets control air-valves of cylinders acting upon the elevator or aileron controls. As applied to an indicating instrument, the pointers z act through devices similar to that shown in Fig. 3 upon rotary magnets T', T', Fig. 5. The magnet T' rotates a semicircular disc S, the top edge of which represents the horizon, by means of links r<1>, r<2>, r<3> in front of a disc representing the sky. The magnet T<1> raises and lowers the disc S by means of a lever u<3> link u<2> and angle lever u<1> centred on the axis of the magnet T2. In front of the disc S is a transparent disc having an outline of the bonnet g of the machine. The disc S may bear a photographic representation of the ground. A pointer may be moved transversely across the instrument in response to a turn indicator.