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).
Numbered list of technical notes and queries regarding automotive components and design.
| Identifier | ExFiles\Box 124\3\ scan0417 | |
| Date | 16th October 1936 | |
| -2- (13) Pistons have head deflection groove above top ring. Two scraper rings; other two tapered. Gap .010 to .018, side .0015 to .003. Handwritten: Gry{Shadwell Grylls} to enquire why Handwritten Initials: Mths.{Reg Matthews} (14) Taper valve for shock absorbers. Lightened pistons. Handwritten: Keep on Handwritten Initials: Los. (15) Rubber rear shock absorber link. Handwritten: Keep on Handwritten Initials: Los. (16) Rear axle construction. Built up Banjo type. Handwritten Initials: Gry.{Shadwell Grylls} (17) All hydraulic brakes. Note layout for future reference. Why not a cable parking brake. We should experiment with this. At least gets hand brake out of way of men getting in car. Handwritten Initials: A.F.N. (18) Spark plugs well into cylinder. Handwritten Initials: Wst. Swdl.{Len H. Swindell} (19) Flywheel weights. How do these compare with ours. Handwritten Initials: Gry.{Shadwell Grylls} Ll.Smith. (20) Aluminium rocker shaft brackets to reduce valve running clearance. Should be adapted immediately to 25/30 and tested. Handwritten Initials: Swdl.{Len H. Swindell} (21) How does Buick valve timing compare with our own ? Handwritten Initials: Ll.Smith. (22) Adjustment of headlamp beam from outside. Handwritten Initials: Wst. (23) Page 200. Vacuum advance + centrifugal advance. What economy advantage should we gain through increased advance at part throttle openings ? Can we test Chevrolet with and without ? Handwritten Initials: Swdl.{Len H. Swindell} West. Dodd. (24) Starting with Solenoid relay and with a geared starter motor. We note they get a ratio of 17.55 - 1. We ought to have a cost analysis of the two schemes. Vacuum gear disengagement seems a sound scheme to prevent insertion of starter when engine is running. Handwritten Initials: West. | ||