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).
Comparison of existing Linseed Oil and proposed Cellulose Paint treatments, detailing the operational steps, timings, and costs.
| Identifier | ExFiles\Box 148\2\ scan0002 | |
| Date | 6th October 1938 guessed | |
| COMPARISON OF OIL RESISTING PAINT AND LINSEED OIL TREATMENTS OPERATIONS EXISTING 1. Cast 2. Fettle 3. Heat Treat 4. Sand Blast 5. Spray with Linseed Oil 6. [Crossed out text: Leave to dry.] [Handwritten Annotation: STOVE 1 1/2 HRS] 7. [Handwritten Annotation: REPEAT] [A red circle with '7b' inside encompasses these changes] 8. Stove for 2 1/2 hours. [The '2' is crossed out and '2 1/2' is handwritten] 9. Cool. To Machines. PROPOSED 1. Cast 2. Fettle 3. Heat Treat 4. Sand Blast 5. Spray with Cellulose Paint. 6. Leave to dry. To Machines. OPERATING TIMES & COSTS | | Cellulose | Linseed Oil |---|---|---| | Time taken to spray all parts on one engine with (one coat of cellulose (two coats of Linseed Oil... | 35 mins. | 120 mins. | Cost of Labour... | 1/0¼d.{John DeLooze - Company Secretary} | 3/6d. | Cost of (¾ pint of Cellulose at 16/- per gallon... (1½ pints of Linseed Oil at 2/9d per gallon... | 1/6d. | 6¼d.{John DeLooze - Company Secretary} | Additional (150% overheads for Cellulose)... (180% overheads for Linseed Oil, includes baking cost | 1/6½d.{John DeLooze - Company Secretary} | 6/3½d.{John DeLooze - Company Secretary} | --- | --- | --- | [Handwritten Total] | 4/0¾d.{John DeLooze - Company Secretary} | 10/3¾d.{John DeLooze - Company Secretary} | ||