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).
Form for recording details of magneto design and performance for a U.S.A. Bosch D.U.Z.6.
| Identifier | ExFiles\Box 49\5\ Scan218 | |
| Date | 20th April 1921 | |
| R.R. 235A (100 T) S.H. 798 10-12-20: G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 X. 4285. -1- X.430. FORM FOR RECORDING DETAILS OF MAGNETO DESIGN AND PERFORMANCE. Date :- April 20th 21. Magneto on test. Maker :- U.S.A. Bosch. X. No. :- 4285. Type :- D.U.Z.6. No.:- 3363370. (1) Weight in pounds. 14.4. (2) Remarks re mechanical and electrical design and noisiness of operation. Single magnet. No oilways. No means of lubricating distributor gear wheel bearing. One additional earthing brush. Damper ring on distributor gear wheel. Vertical working surface of distributor. Armature enclosed. H.T. brush-holder fitted with screw collar, and slip joint connected H.T. conductor. Serrated periphery of cam ring. Machine noisy at high speeds, mainly due to a rattle in the gears, but also partly from the contact breaker. (3) Radial air gap (inches) :- Unobtainable. * * * (mm) :- Contd. | ||