P. J. Geary

• Instrument ball bearings
• Determination of moisture in solids
• Flexure devices: pivots, movements, suspensions
• Fluid film bearings
• Knife-edge bearings
• Magnetic and electric suspensions
• Measurement of moisture in solids
• Torsion devices
• Torsion Devices. A survey of their design, construction, and use (B.S.I.R.A. Survey of Instrument Parts. no. 3.)