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).
Modifications by Lucas to improve the B40 starter relay hinge between the armature and yoke.
| Identifier | ExFiles\Box 165\7\ img020 | |
| Date | 28th December 1943 guessed | |
| MODIFICATIONS CARRIED OUT BY LUCAS TO IMPROVE B40 STARTER RELAY HINGE, BETWEEN ARMATURE AND YOKE. (a) INITIAL DESIGN OF SPRING HINGE. FRACTURE ACROSS THIS SECTION. PHOSPHOR BRONZE HINGE SPRING ARMATURE YOKE (b) 1ST MODIFICATION: NOT A SUCCESSFUL REMEDY. LAMINATED BACKING PLATE TO IMPROVE DISTRIBUTION OF STRESS AT THE BEND. (c) LATEST DESIGN OF HINGE: EXPERIMENTAL MOTORS HAVING LATEST DESIGN MARKED "MR". RETURN SPRING SPRING STEEL HINGE. PHOSPHOR BRONZE. | ||