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).
Brake shoe testing, material quality, and suggesting the acquisition of a Brinnell Ball tester.
| Identifier | Morton\M16\ img058 | |
| Date | 2nd June 1913 | |
| R.R. 657. (50H) (XX. 863. 2.6.13) E.P. 4349. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). -2- Names and Indicating letter. Initial of person addressed. A Mr. ADAMS By Mr. BAILEY Bn{W.O. Bentley / Mr Barrington} Mr. BARRINGTON B Mr. BEREND Bt{Capt. J. S. Burt - Engineer} Mr. BURT Cas Miss CASWELL Cn{Mr Chamberain} Mr. CHAMBERLAIN C Mr. COWEN Cx{Major Len W. Cox - Advertising Manager} Mr. COX D Mr. DeLOOZE E Mr. ELLIOTT F Mr. FRIESE G Mr. GNAPP Hy{Tom Haldenby - Plant Engineer} Mr. HALDENBY Hm{Capt. W. Hallam - Head Repairs} Mr. HALLAM H Mr. HANBURY J Mr. JOHNSON K Mr. KILNER M Mr. MOON Na{Mr Nadin} Mr. NADIN Ny Mr. NORTHEY O Mr. OLDHAM Pn{Mr Northey} Mr. PATERSON Pd Mr. PLATFORD Rn{Mr Robinson} Mr. ROBINSON R Mr. ROYCE JR{Mr James Royce} Mr. JAMES ROYCE Sn{Mr Sanderson} Mr. SANDERSON LHS{Lord Herbert Scott} LORD HERBERT SCOTT Sp{Mr Spinney} Mr. SPINNEY V - VIENNA Whr{Mr Wheeler} Mr. WHEELER Wd{Mr Wood/Mr Whitehead} Mr. WHITEHEAD Wor{Arthur Wormald - General Works Manager} Mr. WORMALD ones being taken from a 1300 series chassis, but this instrument showed practically no difference between the old and new shoes, in fact there was as much difference in the various parts of the same shoe as there was between the two types of shoes. We are not sure however that this instrument is of any great value for testing such a comparatively soft material as cast iron, but we think, in view of the present trouble, that it might be advisable to obtain a more efficient instrument, and we would suggest the Brinnell Ball tester. Messrs Clement Bayard have one of these in use, with, we believe, satisfactory results. It is of course quite possible that the shorter life of these brake shoes is due to the difference in the quality of the drums and not the shoes at all, and we will keep this point before us in making further investigations into this matter. Experiments are in hand which should enable us to arrive at a definite policy, and we do not intend to let the matter drop This sheet must be filed with the correspondence to which it refers. | ||