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).
Comparing Morse roller chains with competitors like Reynolds and those used in Cadillac and Lincoln vehicles.
| Identifier | ExFiles\Box 173\2\ img146 | |
| Date | 17th February 1934 guessed | |
| VI. The Morse people do not like the roller chain as made by Reynolds and used in England, they say it is more sensitive to accurate manufacture & less silent. The Chain used on the Cadillac is shown on Page 7, .375 pitch but for exact particulars as manufactured in England refer to Letchworth. The lay out is substantially as shown on the Lincoln & Pierce Arrow Schemes enclosed. The Morse people consider that the self adjuster prolongs the life of the Chain enormously because it never allows it to get slack, the Cadillac people confirm this, that their front ends stay quiet. With regard to speed, Cadillacs run up to 5000 R.P.M. in short bursts, and have 100 hours endurance at 4250 R.P.M. Morse say they are not frightened of 6000 R.P.M. I apologise for writing so fully on this, but the money we spend getting timing gears quiet and the dissatisfaction often caused is the justification. The Morse Co. claim that do not require Spring driven crankshaft pinions or balanced Cams are | ||