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).
Telegram feedback on synchromesh, gearboxes, and servo mechanisms.
| Identifier | ExFiles\Box 15\5\ Scan273 | |
| Date | 5th May 1932 | |
| Handwritten top: X7310, Hs{Lord Ernest Hives - Chair}, Y634, Y5310 To E.{Mr Elliott - Chief Engineer} from Eg. Copy to Mar. Hs.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} W. for DA.{Bernard Day - Chassis Design} re Synchromesh. I have received a telegram from R.{Sir Henry Royce} which reads as follows: SINCE REVERSE GIVES OPPORTUNITY FOR CRITICISM ALTER ALL SIZES TO DOUBLE TRAVEL ON PINION BUT NOT OF LEVER PEREGRINE AND BENSPORTS BOXES EXACTLY THE SAME GEARS DIFFERENT BACK AXLE RATIOS SUGGEST SIMPLE FORWARD SERVO FOR THESE DOUBT IF SYNCHROMESH EFFECTIVE ON SECOND ALSO IMPOSSIBLE WITH PRESENT SERVO DRIVE STOP TRANSMISSION VIBRATION (?) (VIBRATION) SUSPECT CRANKSHAFT DAMPERS INEFFECTIVE IF ENGINE FREE IN BEARINGS LOVELY GRILLS SHOULD MEASURE ANGLE OF TORSIONAL SWING AT HALF PERIOD CONSIDER CRY CENTRIFUGAL NECESSARY GENERAL SITUATION REGRET DEPARTED FROM MY IMPRESSION SINCE CONFIRMED SEE LETTER POSTED TODAY SWEEP AWAY RATHER THAN ADD MORE GADGETS. The first part evidently deals with our strong criticism of the inability to change from second to first without making a terrible noise. Please let me know whether this removes the criticism. The second point evidently means that "Peregrine" and Bensport gearboxes should be exactly the same instead of "Peregrine" being based on J.III. This is what I understood at Derby last week was your recommendation. I gather that R.{Sir Henry Royce} is saying that both these cars should have a simple forward servo whereas I believe the original intention was to do without this. I should be glad to hear from you on this point as well. Regarding synchromesh being ineffective on second also impossible with present servo I do not understand why it should be ineffective as we know that other people such as Cadillac are using it.. The point about it being impossible with the present | ||