1
Improvements in or connected with air brakes for aircraft. Petters, Geoffrey Terence Roland Hill, June 15, 1931: GB350504-A (2 worldwide citation)

350,504. Air brakes for aeroplanes. PETTERS, Ltd. and HILL, G. T. R., Westland Aircraft Works, Yeovil, Somerset. Jan. 15, 1930, No. 1456. [Class 4.] In air brakes of the type comprising a hinged resistance surface the hinge is movable so that the resistance to angular adjustment is counteracted by p ...


2
Air brakes for aeroplanes. William Edrington Gray, June 8, 1931: GB350028-A

350,028. Aeroplane air brakes. GRAY, W. E., 8A, Bank Parade, Edgware, Middlesex. March 6, 1930, No. 15174/31. Divided on 350,475. [Class 4.] A parachute air brake for reducing the landing run of an aeroplane is arranged to be automatically released on contact of the machine with the ground. A parach ...


3
Air brakes for aeroplanes. William Edrington Gray, June 8, 1931: GB350475-A

350,475. Air brakes for aeroplanes. GRAY, W. E., 8A, Bank Parade, Edgware, Middlesex. March 6, 1930, No. 7408. [Class 4.] An aeroplane which is provided with one or more parachutes which can be released to act as air brakes has one parachute 4, Fig. 2, attached by two separate means, the normal one ...



Click the thumbnails below to visualize the patent trend.