Blueprint detailing the design and dimensions of a Water Venturimeter.
| Identifier | ExFiles\Box 24\5\ Scan152 | |
| Date | 16th July 1928 guessed | |
| WATER VENTURIMETER. SWEATED TOGETHER LAW OF VENTURI Q GALL/MIN = 8.64√H OR 9" DEFLN = 25.92 GAL/MIN H = INS OF Hg. SECTION. "A.A." THESE HOLES MUST BE IN LINE. 4 HOLES .0625 DIA: EQUALLY SPACED. .500 PARALLEL EQUAL ON EACH SIDE OF HOLES. PARALLEL BORE. THE BORE TO BE PERFECTLY SMOOTH & CONCENTRIC WHEN BUILT UP. THE CHANGE FROM THE PARALLEL BORES TO TAPER SHOULD NOT BE SHARP BUT HAVE A SLIGHT RADIUS. Dimensions: 1.500 DIA:, 1.250 DIA:, 2.200 DIA:, A, .325, .0625 DIA: HOLE, 2.250, .250, .125 RAD., .050, .600, .250, 1.500 DIA, .500, 1.500, .500, .700, 4.250, 4.750, 1.250 | ||
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).