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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).
Technical brochure detailing the features, types, and measurements of G.A. high-tension waterproof magnetos.

Identifier  ExFiles\Box 4\5\  05-page104
Date  18th November 1920 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.

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.

TYPES of the G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams}
Waterproof Oscillating Magnetos
Oscillation of Arm : 30°
Type HSO is suitable for engines up to 8 HP
Type HRO is suitable for engines up to 12 HP

MEASUREMENTS in MILLIMETERS

[Table 1]
Type, A, B, C, D, E, F, G, H, I, J, K, L, M, N
HSO, 35,5, 26,5, 85, 28,5, 20,5, 12, 14,5, 50, 4, 66,5, 222,5, 153, 146,5, 30
HRO, 35,5, 26,5, 85, 28,5, 20,5, 12, 14,5, 50, 4, 66,5, 222,5, 153, 168, 30

[Table 2]
Type, O, P, Q, R, S, T, U, V, W, X, Y, Z, a, b, c
HSO, 45, 179, 209, 16, 10, 82, 84, 61,5, 66, 45,5, 107, 12, 15, 13,5, 16
HRO, 45, 198,5, 228,5, 16, 10, 82, 84, 61,5, 66, 45,5, 107, 12, 15, 13,5, 16

G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} Magnetos :: Electric lighting :: JARNAC Carburetters :: ARECAL :: Refrigerators :: Feet warmer :: Pumps :: Sheet-iron.
  
  


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