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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).
Design and materials for a bonnet with fixed side plates for model 1-B-50.

Identifier  ExFiles\Box 112\3\  scan0040
Date  9th April 1938
  
BY/RS.{Sir Henry Royce's Secretary} (struck through)
c. Rm.{William Robotham - Chief Engineer}
c. Rm{William Robotham - Chief Engineer}/Std. (struck through)
c. DA{Bernard Day - Chassis Design}/HV. (struck through)

DA.{Bernard Day - Chassis Design}6/G.9.4.38.

----- 805.

h/new (handwritten)
Rm{William Robotham - Chief Engineer}/Std (handwritten)

BONNET WITH FIXED SIDE PLATES - 1-B-50.

We send herewith FD.{Frank Dodd - Bodies}145 shewing the top portion of the bonnet with fixed side plates for 1-B-50. The Rover design has been copied as closely as conditions would permit.

The top plates should be made from Lysaghts Silver bright sheet steel .036 thick, which is the Rover gauge. The top hinge is made of standard Widney Section cut and adapted as drawn, and following the design of F.CD.338 of Bentley 111.

The catches for the top plates have been obtained from the Rover Co. and two sets have been handed to Rm{William Robotham - Chief Engineer}/Std.

The reinforcing beam at the top of the side plate is attached to the latter by drive screws as on the Rover bonnet, and we do not wish these to be departed from without a trial, as we believe in such places they are very satisfactory.

The scheme for the fixed side plates is well in hand.

DA.{Bernard Day - Chassis Design}
  
  


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