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).
Request to determine the pull transmitted by a Whittle Vee Belt under specific running conditions.
| Identifier | ExFiles\Box 55\2\ Scan025 | |
| Date | 19th July 1913 | |
| R.R. 222a (150 m) (XX.79. 8.7.13) E.P. 4584. C O P Y R.142 19-7-13. Mr. Wormald Mr. Mercer. Whittle Vee Belt. X.493. Will you please find what pull on HP a 5/8" Whittle Vee Belt will transmit when running quite slack, with slack side on top, whem a 6" pulley on motor runs at 750 revs. per. min. and drives an 18" pulley on a brake apparatus, the centre distance being 33". [Handwritten annotations on diagram] 18" wood pulley in brake apparatus 6" pulley on motor 33" about 1 HP req'd (Sg {Arthur F. Sidgreaves - MD} 'd) J.A.M. [Watermark] DICKINSON BOND 1804 MADE AT CROXLEY | ||