GB505431A - Improvements relating to hinge mountings for doors, panels, hatchways or the like - Google Patents

Abstract

505,431. Hinges &c. ; controlling aircraft. HUDSON, R. J. H. Oct. 7, 1937, Nos. 27298/37 and 23853/38. [Class 65 (ii)] [Also in Group XXXIII] A door is mounted so that it is displaced bodily outwards either during or before the normal swinging door-opening movement. Hinge mountings as shown in Fig. 1A, comprise an arm 3 pivoted to the door post, about an axis a, a T-shaped swivel part 4 pivoted to the arm 3 about an axis b and a plate upon the door carrying the second pivotal axis c of the part 4. With these mountings, a door, in opening, is first moved bodily outwards, the arms 3 turning outwards until they rest upon stops 6 and the axes b of a pair of mountings are in line. The door can then be swung in normal fashion about the axis b. The arms 3 may be cranked so as to permit the door to swing through 180 degrees. A second form of mounting comprises an arm 3, Figs. 3B, 3C a T-shaped swivel-part 4 mounted in the arm 3 on an axis b, which is at right-angles to the axis a and a socket plate 7 on the door which receives the part 4 in an oblique direction In a third form, the axis b, Fig. 4A, is inclined to the axis a. With hinge mountings of the second and third forms, the outward displacement of the door takes plate simultaneously with the swinging movement. The mountings are applicable to hatchways and to the mounting of flaps upon aircraft wings so that as a flap swings a gap is produced between itself and the trailing edge of the wing.