From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Page describing the Lovejoy hydraulic damper with a technical diagram.
| Identifier | ExFiles\Box 178\1\ img166 | |
| Date | 22th June 1926 | |
| - 12 - Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/T22.6.26. Exactly similar types of damper are the Derihon and the Berkshire and both suffer from the same disadvantages. (d) Dampers having fixed minimum loading obtained by spring controlled valves. (i) The Lovejoy dampers. The best known hydraulic damper with a spring loaded valve is the "Lovejoy" manufactured in America. This is a two stage, fixed loading single acting shock damper. They also market a single stage model. The essential details are a piston actuated by a crank and link. [Diagram Text] GLAND FREE FROM PRESSURE LIGHT LOAD HEAVY LOAD STRAP CONNECTION RETURN SPRING SUCTION VALVE ADMITTING OIL TO CHAMBER WHEN SPRING IS COMPRESSED The connection to the axle is by a flexible strap. When the axle rises the internal spring pushes the piston upwards, and contd. | ||