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).
Four unusual features of a new hydraulic shock damper design.
| Identifier | WestWitteringFiles\N\October1925-December1925\ Scan103 | |
| Date | 20th November 1925 | |
| TO - DA.{Bernard Day - Chassis Design} FROM R.{Sir Henry Royce} C. to CG. RH.{R. Hollingworth} HS.{Lord Ernest Hives - Chair} Mr. Claremont. ORIGINAL R1/M20.11.25. re. RR. HYDRAULIC SHOCK DAMPERS. X235 / X8520 There are some particulars in connection with the above, which form a combination of parts which are unusual, and a copy of the design (blue print) should be sent to Mr. Claremont, with descriptive notes as to where it varies from those already made by other people - (1) Double unequal damping. (2) Forced filling. (3) Low pressure restriction to expel air, with (4) Ball valve to admit oil freely in case of deficiency, this drawing from lowest part of reservoir. R.{Sir Henry Royce} RECEIVED | ||