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).
Experiments conducted on various types of cutout contact points.
| Identifier | ExFiles\Box 50\1\ Scan110 | |
| Date | 24th February 1926 | |
| E.F.C. X4105 24.2.26. X.4105 - CUTOUT CONTACT POINTS EXPERIMENTS. --------------------------------------- 8-GIII. A type rubbing contacts. 9-GIII. Reynold contact points and rigid fixed contact point support. 10-GIII. Spring with .150" neck, rigid backing, rigid fixed contact point support, and Reynold contact points. 11-GIII. Spring with .150" neck, rigid backing, and rigid fixed contact point support. 44-PK. Spring with .137" neck, rigid backing and rigid fixed contact point support. 98-NK. Spring with .150" neck rigid backing and rigid fixed contact point support. 7-EX. Spring with .150" neck, rigid backing and rigid fixed contact point support. 8-EX. Reybold contact points and rigid fixed contact point support. 10-EX. Spring with .137" neck, rigid backing and rigid fixed contact point support. --------- EFC. {E. Fowler Clarke - Electrical Engineer} | ||