Rolls-Royce Archives
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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 from The Automotive Engineering Company Ltd. regarding a self-adjusting piston for a 40/50 HP engine.

Identifier  ExFiles\Box 148\3\  scan0055
Date  23th October 1928
  
X1506
TELEPHONES: POPESGROVE { 2206. 2207. 2208.
TELEGRAMS: AUTOMOTIVE, POPESGROVE 2206.
(PATENT NO 200718.)
B.H.B. SELF-ADJUSTING PISTONS,
PATENTED IN GREAT BRITAIN, CANADA, U.S.A. FRANCE, BELGIUM, ITALY, AUSTRIA & GERMANY.
PROPRIETORS:
THE AUTOMOTIVE ENGINEERING COMPANY, LTD
DIRECTORS { H.S.HEWITT, MANAGING DIRECTOR. J.W.UPCOTT. S.C.S.HICKSON.
REGISTERED OFFICE.
The Green,
Twickenham,
Middlesex.
OUR REF. E.D.
YOUR REF. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG.
October 23rd.1928.
Messrs.Rolls Royce Ltd.,
DERBY.
Expl.Dept.
Dear Sirs,
For the attention of Mr. W.A.Robotham.
Further to our Mr.Hewitt's letter of the 20th.inst., concerning the Piston for your 40/50 h.p. Engine, we enclose herewith a sketch showing the essentials of the B.H.B. type.
The design as shown will weigh approximately, in a casting made from Alum. L.8., 1 3/4 to 2 lbs., bare.
We shall be pleased to receive a completed drawing of your own design of Piston to enable us to go more fully into these figures, as of course it is very difficult for us to give you any other than an approximate weight, owing to the sketch which was sent to us affording very little information.
Yours faithfully,
FOR THE AUTOMOTIVE ENGINEERING COMPANY LTD.
  
  


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