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).
Specification sheet detailing the features and dimensions of G.A. high-tension waterproof magnetos.
| Identifier | ExFiles\Box 4\5\ 05-page100 | |
| Date | 15th May 1909 guessed | |
| SPECIAL FEATURES of the G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} High tension Waterproof Magnetos Design. Silent running. Ease of maintenance. Maximum efficiency. Ease of dismantling & repair. Rotation both ways. All types of G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} Magnetos are fitted with: (a) an indicator showing, at any moment, the next cylinder to fire. (b) an automatic timing device. N. B. — The attention of manufacturers is drawn to the fact that by a simple adjustment the armature of any of the G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} Magnetos may be made to revolve in either a clockwise or an anticlockwise direction. Description of the different Types of our waterproof magnetos for single cylinder engines G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} They may be driven either at crankshaft speed (thus missing one spark at exhaust and rendering starting of engine easier) or at 1/2 the speed of crankshaft. The type G S 1 driven at engine speed is suitable for 4 H.{Arthur M. Hanbury - Head Complaints} P. " G R 1 " " " " 6 H.{Arthur M. Hanbury - Head Complaints} P. " H S 1 " " " " 9 H.{Arthur M. Hanbury - Head Complaints} P. " H R 1 " " " " 12 H.{Arthur M. Hanbury - Head Complaints} P. Should the magnetos be driven at 1/2 speed of engine, type G R 1 should be used for 4 H.{Arthur M. Hanbury - Head Complaints} P. and H S 1 for 6 H.{Arthur M. Hanbury - Head Complaints} P. and H R 1 for 9 H P. MEASUREMENTS IN MILLIMETERS [Technical Drawings of Magneto] Text near drawings: Right angle wheel stand for types HS{Lord Ernest Hives - Chair} and HR. Round adjust. wheel stand for types GS and HS.{Lord Ernest Hives - Chair} Right angle or round adjust. wheel stand for types GR{George Ratcliffe} and HR. Entr'axe des vis de fixations de 10 m/m Largeur totale TABLE 1: Types | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O GS1 | 134 | 127 | 15 | 24 | 7 | 43,5 | 85 | 7 | 35,5 | 93,5 | 63 | 29,5 | 12 | 167,5 GR{George Ratcliffe}1 | 143 | 136 | 15 | 24 | 7 | 43,5 | 85 | 7 | 35,5 | 58 | 20 | 24 | 12 | 175,5 HS{Lord Ernest Hives - Chair}1 | 153 | 146,5 | 15 | 24 | 7 | 50 | 64 | 67 | 7 | 35,5 | 26,5 | 85 | 35 | 15,5 | 193,5 HR1 | 175 | 148 | 15 | 24 | 7 | 50 | 64 | 67 | 7 | 35,5 | 26,5 | 85 | 35 | 15,5 | 193,5 TABLE 2: Types | P | Q | R | S | T | U | V | W | X | Y | Z | a | b | c | d GS1 | 55,5 | 75 | 27 | 38 | 96 | 15 | 14 | 185,5 | 56 | 42 | 32,5 | 12 | 15 | 43,5 GR{George Ratcliffe}1 | 55,5 | 77 | 29 | 38 | 105 | 15 | 14 | 193,5 | 56 | 55 | 32,5 | 12 | 15 | 43,5 HS{Lord Ernest Hives - Chair}1 | 55 | 55,5 | 80 | 82 | 45 | 108 | 15 | 14 | 211,5 | 56 | 55 | 30,5 | 12 | 15 | 61,5 HR1 | 55 | 55,5 | 80 | 84 | 35 | 128 | 15 | 18 | 221,5 | 56 | 55 | 30,5 | 12 | 15 | 61,5 Footer Text: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} Magnetos :: Electric lighting :: JARNAC Carburetters :: Arecal :: Refrigerators :: Foot warmer :: Pumps :: Sheet-iron. | ||