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).
Instructions and drawings for scrubbing contact points, including a condenser contact, back-plate, and clamping bolt.
| Identifier | ExFiles\Box 35\6\ scan 046 | |
| Date | 1st June 1921 | |
| (R.R. 300 (12s) (S.C. 247. 28-1-16). H X.2894 49934 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Coverley Date: June 1 1921 Order No. SCRUBBING CONTACT POINTS Customer's No. Re: Drawing 1 - CONDENSER CONTACT (Brass): Labels: 2BA Clearance, Countersink. Dimensions: 1.250", .312" dia, .188", .500", .125" hole, .250" hole, .250", .750", .125", .062". Drawing 2 - CLAMPING BOLT: Labels: 2BA Thread. Dimensions: .250" dia, .220", .125", .125" hole, 1.250", .250". Drawing 3 - BACK - PLATE (Brass): Labels: 2BA Tapping, 2BA Clearance. Dimensions: 1.250", .500", .250", .170", .750", .125". Signed: This Sheet must be filed on completion of the work. | ||