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).
Modifications to a Goshawk 11 luggage grid based on experience.
| Identifier | WestWitteringFiles\K\September1923\ Scan93 | |
| Date | 1st September 1923 | |
| TO BY FROM DA.{Bernard Day - Chassis Design} c. to EH. [struck through] c. to WCR. c. to HS.{Lord Ernest Hives - Chair} ORIGINAL DA{Bernard Day - Chassis Design}1/126. 9. 23. LUGGAGE GRID - GOSHAWK 11. Y3524 We send herewith N.Sch. 1448. shewing certain modifications to the standard luggage grid which have been suggested by experience. It is found that the narrow rails tend to eat into the luggage with the motion from the road, and we accordingly suggest that the back, centre, and front rails should be made of an angle section giving a fairly broad surface for the luggage to rest on, and we think this should be sufficient without similarly modifying the sides. Another point which was found was that the back part of the luggage grid tended to move upwards under vibration and cause the luggage to strike the body. This is overcome by the proposed hinge pin and wing nut, which when it is not in use is turned round at right angles and locked out of the way. A further improvement is the higher body-guard. It was found that with the original height of body-guard, if two suit-cases or trunks were used, the upper one was liable to move and hit the body. This should be obviated by the proposed tall body-guard, and in order that this may not be unsightly we suggest that it should be arranged to fold down. We should like all the joints to have considerably more friction than the specimens we saw here. We think this may be due to the use of very weak Thackeray washers of Terry's make, and that it probably would be better to use the Grover washer as shewn on this scheme. We are expecting that a load of about 10 lbs. both to move the back portion of the grid and also to move the body-guard will be required. We should of course like an experimental grid made before the modifications shewn on this drawing are put into production. We should like one grid fitted onto Mr. Royce's enclosed car, and another one sent to Sales for their examination. It will be noticed that new stampings are required throughout but we expect to use up all existing stampings before this new design is standardised. DA.{Bernard Day - Chassis Design} | ||