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).
Proposing a new rig and procedure for testing fan belts, seeking advice on the methodology.
| Identifier | ExFiles\Box 55\2\ Scan032 | |
| Date | 12th September 1913 guessed | |
| COPY. BELT TEST. X.196 M2/12913. R.{Sir Henry Royce} The present Fan Stretching Rig cannot be spared for a prolonged test, we have therefore shown a similar rig (some parts of which we can borrow from present rig) largely consisting of existing pieces. The pulleys, lever spindle support, and driving shaft are new. It is proposed to take a length of belt to give correct centre distance and give it a certain tension by means of the weight on end of lever. The lever is then to be locked in this position. The idea is to run the belt slowly then quickly and lastly slowly, to see what effect the fast speed has had on the belt. When driving the fan, should we have a pulley on the fan, driving a tachometer, and so tell the falling off in speed ?. With the dynamo should we use some lamps in series as a resistance ?. I would be glad of your advice for carrying out the test. (sgd) M.{Mr Moon / Mr Moore} | ||