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).
Design changes for a new dashboard vacuum tank, including its capacity, tap type, and the addition of a drain plug.
| Identifier | WestWitteringFiles\O\January1926-March1926\ Scan4 | |
| Date | 8th January 1926 | |
| TO BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} [TO BY.{R.W. Bailey - Chief Engineer} is struck through] Copy to - HS.{Lord Ernest Hives - Chair} [HS.{Lord Ernest Hives - Chair} is struck through] ORIGINAL [Stamped] DA{Bernard Day - Chassis Design}5/M8.1.26. [Handwritten]: K4400 EAC.8. VACUUM TANK. We send herewith N. sch: 2108. [Handwritten 'X7510' and crossed out 'X7500' next to 2108] shewing the vacuum tank suitable for the new dashboard. It will be noticed that it no longer goes through the dashboard, and so a certain amount of body trouble is eliminated. The capacity as drawn is slightly less than before as R.{Sir Henry Royce} considers that we shall shortly be making use of a vacuum pump in place of the induction pipe suction. The first cars can however be run without this pump if necessary. R.{Sir Henry Royce} wishes to use a cork faced tap in place of the present needle valve, and we have taken our particulars off Benton & Stone's catalogue - tap No.3069., being the particular one of which we have had a sample. We should like you to see whether Benton & Stone would make us a tap as we have designed it, making use of the rotor of 3069. We have added a drain plug and sediment collecting sump as we believe there is a certain demand for this, and it will be noticed that the petrol can now be turned off from the rear of the dash. DA.{Bernard Day - Chassis Design} | ||