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).
Record of specifications and instructions for Aluminium Zephyr Pistons, models E.10915 and E.11640.
| Identifier | ExFiles\Box 181\M11\ img022 | |
| Date | 16th October 1917 | |
| X.2369. - ALUMINIUM ZEPHYR PISTONS FOR STANDARD CAR. X.2369A.- Pistons E.10915 with 6 Upper Rings and 1 Scraper Ring with no skirt below bottom Ring. Rings 4 & 6 Pinned (to super sheet E10937) X.2369B.- Piston E.11640 with 6 Upper Rings and 1 Scraper Ring and with Skirt below bottom Ring. Rings 4 & 6 Pinned. (to 2nd column of super sheet E10937) E.{Mr Elliott - Chief Engineer} to Ry. to inst. piston with no skirt below scraper ring to LeC.602. E1/W19716. By.{R.W. Bailey - Chief Engineer} to C.O. to inst. piston E.10915 (1set experimental and 1 set for Commander Briggs' car). By2/C7816. EFC. to Works 10 PCs. for 14 complete pistons E.10915 EFC5/DB{Donald Bastow - Suspensions}21816. EFC. to Works increasing number off from 14 to 20 pistons E.10915. EFC2/DB{Donald Bastow - Suspensions}28816. R.{Sir Henry Royce} to Ry. C.O. Works Urging above. Ry/ST5/DB{Donald Bastow - Suspensions}2916. E.{Mr Elliott - Chief Engineer} to Ry. to inst. similar piston, but with skirt below scraper ring, and to pin rings 4 & 6 instead of 5 & 6. E2/W21016. By.{R.W. Bailey - Chief Engineer} to C.O. Works to fit one set of pistons E.10915 to 7CA. By/ST4/DB{Donald Bastow - Suspensions}161X17 EFC. to Works instructing alteration 1230 E.{Mr Elliott - Chief Engineer} for pinning rings 4 & 6. EFC3/MP201016. By.{R.W. Bailey - Chief Engineer} to C.O. to inst. E.11640 with skirt below bottom ring. One set for 7CA. One set in reserve. By/St7/DB{Donald Bastow - Suspensions}231016. EFC. to Works 11 PCs. for 12 complete pistons E.11640. EFC3/MP151016. | ||