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 Birbys Ltd. clarifying the shape and dimensions of an interior hexagon recess for order 58209.
| Identifier | ExFiles\Box 150\3\ scan0409 | |
| Date | 26th March 1938 | |
| File Wraith Radiator CONTRACTORS TO THE ADMIRALTY, AIR MINISTRY, L.C.C, G.P.O, UNION OF SOUTH AFRICA, ETC BIRKBYS LTD LIVERSEDGE YORKSHIRE MOULDINGS POWDERS RESIN AND VARNISH FOR EVERYTHING ELECTRICAL AND 1001 OTHER USES Telephone HECKMONDWIKE 514 Telegrams 'ELO LIVERSEDGE' Directors A T BIRKBY F E BIRKBY Codes A.B.C. 5TH EDITION WESTERN UNION BROOMHALL BENTLEYS OUR REF TW/MB/SALES. YOUR REF Rm{William Robotham - Chief Engineer}/Std.1/AP. DATE 26th March 1938. Messrs. Rolls-Royce Ltd., Derby. Dear Sirs, Order No. 58209. We beg to acknowledge your letter of the 18th instant and note your remarks. These now clear up the points which we put to you but we find that there is one further point which we omitted to mention, and that is the shape of the interior recess. Your section view on the left hand top corner gives a dimension of .1" on the interior recess, measured from the top. The section itself, however, is taken across the corners of the hexagon recess and we are assuming that if the section was taken across the flats it would show a bevel of a depth of .1" as sketch herewith. Will you please confirm that this interpretation is correct. Meanwhile we are, of course, proceeding with the tool making. Yours faithfully, For BIRKBYS LIMITED. J Whitehead Technical & Designs Dept. | ||