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 modification to the 40/50 HP chassis sparking plug box spanner to prevent it from jamming.
| Identifier | ExFiles\Box 20\8\ Scan052 | |
| Date | 8th January 1924 | |
| EP.{G. Eric Platford - Chief Quality Engineer} c. Hs.{Lord Ernest Hives - Chair} c. BY/HEB.{H. Biraben} X1027 BY/C9/H.{Arthur M. Hanbury - Head Complaints} 8.,1. 24. 40/50. HP. CHASSIS. SPARKING PLUG BOX SPANNERS. With reference to EP{G. Eric Platford - Chief Quality Engineer}/Thn4/H.{Arthur M. Hanbury - Head Complaints} 20. 12. 23, we have looked into the complaint and find that the trouble is in connection with the sparking plugs adjacent to the water jacket covers on the top of the cylinders. Owing to the length of hexagon formed in the box spanner the latter can drop right down over the sparking plug and jamb between the latter and the water jacket cover, thus preventing the spanner from being turned, therefore we are arranging to have the length of hexagon reduced in the box spanner to prevent this. BY/C. | ||