GB555514A - Improvements in the mounting of ailerons, and like control members for aeroplanes and hinges therefor - Google Patents

Abstract

555,514. Hinges &c. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Feb. 26, 1942, No. 2526. [Class 65 (ii)] [Also in Group XXXIII] Control surfaces such as ailerons, elevators or rudders are mounted upon a wing or other support by a hinge of which one member is permanently secured to one of the parts to be connected while the other member of the hinge is secured to the other part in a readily detachalbe manner whereby the control surface can be readily mounted and demounted. In the aileron mounting shown, the hinge comprises a lever 4 pivoted by a self-aligning anti-friction bearing 12 upon a pivot 13 carried by a pair of brackets 5 secured to the spar 6 of the wing 1, the bolts 15 for these brackets passing through angle brackets 17 of the spar. The rear' arm of the lever 4 forms a spigot 3 adapted detachably to enter a socket formed by a block 11 secured to a frame member 27 of the aileron .2. The spigot is secured in the socket and thus the aileron to the wing in a readily detachable manner by a nut on the end 3a of the lever, access to the nut being obtained through an aperture in the under surface of the aileron. The forward arms of the levers of the two hinges extends into the wing and serve respectively for attachment of the operating member and of a balancing weight. To facilitate the mounting of the aileron, a spring clip 21 on the frame member 27 U-shaped in plan is adapted to receive a lug 22 on the lever 4. Plates 19 extending between the brackets 5 serve as stops to limit the pivotal movement of the aileron and to protect the bearing 12.