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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).
Letter to Delco-Remy & Hyatt Ltd. correcting specifications for a Harrison twin flow car heater and requesting bulbs.

Identifier  ExFiles\Box 137\1\  scan0258
Date  24th March 1937
  
1138

24th March 1937

Rm{William Robotham - Chief Engineer}/Std.6/AP.

Messrs Delco-Remy & Hyatt Ltd.,
111 Grosvenor Road,
LONDON S.W.1.

Dear Sirs,

We are retaining thelast Harrison twin flow car heater) which you sent us and will forward you an official order accord-ingly. This heater is the same type as those which we have had previously from you and weighs 6 lbs. 2 ozs. not 3 lbs. 5 ozs. as stated - further its heat out-put is 8000 BTh.Us./hr. and not 11,000 BTh.Us./hr. as given in your letter (for T.D. of 120°F.{Mr Friese})

This heater has an illuminated switch, but the switch supplied by you had no bulb fitted - could you let us have six of these bulbs (screw fitting) - our official order will follow.

Yours faithfully,

FOR ROLLS-ROYCE LTD.
  
  


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