Royal Aircraft Establishment Technical Report 67254. A theoretical investigation into the tuned Hooke's Joint Gyro by A T Hill
3 volumes, 2 files Papers relating to the Ferranti Private Venture Research and the first working oscillogyro
Analysis document by L B C Cunninghsm and M S Jones of the Royal Aircraft Establishment that confirms the theory and invention by Philpot and Mitchell recorded in British Patent 599,826. A.W.A. Paper No 14: The Theory of a Gyroscope Driven through a Hooke's Coupling and Controlled by Eddy-Current Reaction
Photocopy of the British Patent documenting the theory and invention by Philpot and Mitchell of improvements in or relating to means for controlling the orientation of gyroscopes and other rotating masses. Application Date: June 2, 1945. Complete Specification Left: July 2, 1946. Complete Specification Accepted: March 22, 1948. Photocopy of Patent Specification 599,826
Royal Aircraft Establishment Technical Report 76128. Bearing Induced Second Harmonic Error Torques in the Oscillogyro by D D Cooke