Improvements in and relating to the mounting of guns and other similarly mounted instruments, more particularly those used in aircraft

摘要

515,993. Aircraft gun and like turrets. BLACKBURN AIRCRAFT, Ltd., PETTY, G. E., and MILLS, A. E. March 27, 1936, No. 9142. [Class 92 (i)] Relates to mountings for guns and similarly mounted instruments on aircraft of the kind in which the gun &c. is fixed to a turret rotated by servomotors about each of two axes. According to the invention, a sight is mounted on and movable with a manually-operated servomotor controller remote from the turret which is thereby adjusted so that the gun &c. follows the movements of the controller. In the form shown, four guns a are fast with a spherical turret b trained by an electric servomotor f2, worm f and rack e' in a bearing d' which rotatably supports the electric servomotor d3 for elevating the turret about trunnions b2 by. worm d2 and toothed sector b'. During training, the trunnions move in a fixed ring e. Leads d4, f3 from the servomotors pass to the controller which is operated by the gunner who occupies a swivelling 'seat g and manipulates by a link g' a sight g5 mounted on an arm g' pivoted at g2 to the seat structure. The guns are fired by a trigger lever g6. The turret is provided with a removable cover b' and a dome h protects the sight and gunner.