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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).
Blueprints for various inlet and induction pipes for the Bentley 50 chassis.

Identifier  ExFiles\Box 112\1\  scan0013
Date  15th June 1938
  
808
HPS.{Horace Percy Smith - Experimental Factory Mgr}
c. Rm.{William Robotham - Chief Engineer}
c. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}
c. BY/CS.
Piles
BY/Ald.{F. Allwood - Experimental Design}30/G.15.6.38.
SWDL{Len H. Swindell}

BENTLEY 50. CHASSIS.

INLET PIPES - SECTION 5070.

Please receive herewith two blueprints of each of the following, with an extra print of parts marked @ :-

S.CD.695 Built-up Induction Pipes (for single or dual downdraught carburetters).

S.CD.696 Built-up Induction Pipes (for two single downdraught carburetters).

@x.S.807 Inlet Pipe - Front. 1 off.
@x.S.808 Inlet Pipe Rear. 1 off.
@x.S.809 Hot Spot Chamber (Single Downdraught) 1 off.
@x.S.810 End Plug. 2 off.
@x.S.811 Blanking-off Plug. 2 off.
@x.S.812 Base Flange. 2 off.
@x.S.813 Base Flange. 2 off.
@x.S.814 Coupling. 2 off.
Ex.S.815 Plate for Induction Pipe Centre. .375 dia. hole. 1 off.
Ex.S.816 Plate for Induction Pipe Centre. .500 dia. hole. 1 off.
Ex.S.817 Plate for Induction Pipe Centre. .750 dia. hole. 1 off.
Ex.S.818 Plate for Induction Pipe Centre. 1.000 dia. hole. 1 off.
Ex.S.819 Plate for Induction Pipe Centre. 1.750 dia. hole. 1 off.

The above is as requested by memo Rm.{William Robotham - Chief Engineer}4/R.21.5.38. to provide a built up induction pipe for alternative schemes, suggested on Rm{William Robotham - Chief Engineer}/CTS{C. Trot Salt - Carburation}'s note of the 21st. ult.

Kindly instruct one set.

We attach to Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} and BY/CS's copies, a blueprint of S.CD.695/6.

Will BY/CS. please instruct the necessary studs, nuts and washers, which appear on the cylinder head.

Ald{F. Allwood - Experimental Design}
BY/Ald.{F. Allwood - Experimental Design}
  
  


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