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).
Diagram showing the specifications of an Alfred Herbert Ltd. N°9 Horizontal Milling Machine.
| Identifier | ExFiles\Box 76\2\ scan0049 | |
| Date | 27th August 1913 guessed | |
| ALFRED HERBERT LTD. N°9 HORIZONTAL MILLING MACHINE. MILLER MACHINES IN WORKS. R-R N°: 148 DEPT.: MILLING NOTES :- 4½" DIA: 6½" N°11 B & S TAPER TRAVERSE 10" VERT ADJT. 18" 3 1/16" 2 5/8 CRS. T-Slot dimensions: 1¼", ¾", ⅞", ⅝", ⅞", 7/16", ⅝", ¼" 2½" WIDTH FROM COLUMN TO ARM BRACE. WORKING SURFACE 42" x 12" 11 13/16" 19½" MAX HEIGHT MIN 1" 34" MAX FEED N° OF SPINDLE SPEEDS 16 RANGE 13.5 TO 524 N° OF FEEDS 16 X 1593 WHS | ||