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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).
The examination and noted faults of a failed Bentley petrol pump RB.2005.

Identifier  ExFiles\Box 131\2\  scan0044
Date  8th September 1937
  
To BY.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}
c. to Rm{William Robotham - Chief Engineer}/Dixon,
c. to Mx.{John H Maddocks - Chief Proving Officer}

Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}19/N.8.9.37.

Re: Bentley Pump RB.{R. Bowen}2005.

I am forwarding a petrol pump G5.S.C. taken out of stock for Dixon's examination. This pump, direct from the S.U. Co. failed entirely on the o.s. and the n.s. was a minimum delivery. I dismantled the pump to find the cause, it being the latest we know of.

The following features were noted:-

(1) Wood shavings in valve chamber. (The pumps are still being sent out unprotected).

(2) O.S. stroke set too short.

(3) The armature is badly out of truth with the spindle.

(4) Fibre washer on end of field lug, put on lop sided, making a foul of the armature.

(5) Brass washers too small in dia. for locating armature on n.s. and o.s. After cleaning and re-erecting the output is below our standard minimum.

Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}
  
  


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