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).
Notification of blueprints sent for new cut-out contact points to increase rigidity and lighten spring pressure.
| Identifier | ExFiles\Box 50\1\ Scan076 | |
| Date | 15th June 1925 | |
| X4105B C. EFC. {E. Fowler Clarke - Electrical Engineer} BY {R.W. Bailey - Chief Engineer} /RD2/ML15.6.25. X.4105.B - CUT-OUT CONTACT POINTS. In order to give increased rigidity to the support for the fixed contact point and also lighter spring pressure on the cut-out, we send you herewith blueprints of:- D.51400 - Spring Contact. D.51401 - Assembly of Spring Contact. D.51404 - Contact Holder. "D" Sch. 352-Rigid Support. You have, we understand springs with reduced necks already on test and we think that with this new Contact Holder, better results should be obtained. 1/8" Ross Courtney Terminal should be used in place of the standard 5/32" at this point with plain washer D.50483 in place of D.50696. BY {R.W. Bailey - Chief Engineer} /RD. | ||