Rolls-Royce Archives
         « Prev  Box Series  Next »        

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 for G. A. high-tension waterproof magnetos, detailing features and specifications for types D1 and D2.

Identifier  ExFiles\Box 4\5\  05-page102
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.

MAGNETO type D 1 for Motorcycles 2 cylinders up to 2 1/2 H.{Arthur M. Hanbury - Head Complaints} P.
This Magneto may be driven either at crankshaft speed (thus missing one spark at the exhaust and rendering starting of engine easier) or at 1/2 the speed of crankshaft
MEASUREMENTS IN MILLIMETERS
Type A B C D E F G H
D 1 41 58 9 15.5 34.5 36.5 30.25 166
Type I J K L M N O P
D 1 9.2 11.6 35 114.5 55.5 75 77 57

MAGNETO type D 2 for 2 cylinders Motorcycles up to 5 H.{Arthur M. Hanbury - Head Complaints} P.
This Magneto should be driven at crankshaft speed in the case of a two cylinders horizontal engine, and at 1/2 the speed of crankshaft on a two cyl. V.{VIENNA} agape engine
MEASUREMENTS IN MILLIMETERS
Type A B C D E F G H I J
D 2 41 58 9 38.5 54.5 16.5 30.25 166 9.2 11.6
Type K L M N O P Q R S
D 2 35 114.5 75 95 105 77 24.5 36 57

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


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙