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).
Series of operations and tests to diagnose and resolve steering wobble.
| Identifier | ExFiles\Box 28\4\ Scan167 | |
| Date | 27th October 1915 | |
| R.R. (tool?) (UU. 888. 15.6.14.) E.P. 6784. ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and indicating letter. Initial of person addressed. A Mr. ADAMS ... By Mr. BAILEY ... N-W Bn{W.O. Bentley / Mr Barrington} Mr. BARRINGTON ... H-Wor{Arthur Wormald - General Works Manager} B Mr. BEREND ... Bt{Capt. J. S. Burt - Engineer} Mr. BURT ... Cn{Mr Chamberain} Mr. CHAMBERLAIN ... C Mr. COWEN ... Cx{Major Len W. Cox - Advertising Manager} Mr. COX ... D Mr. DeLOOZE ... Da{Bernard Day - Chassis Design} Mr. DAY ... E Mr. ELLIOTT ... Eu EUROPE ... Hy{Tom Haldenby - Plant Engineer} Mr. HALDENBY ... Hm{Capt. W. Hallam - Head Repairs} Mr. HALLAM ... H Mr. HANBURY ... J Mr. JOHNSON ... JS{Mr Johnson's Secretary} Mr JOHNSON'S Secretary ... BJ Mr. BASIL JOHNSON ... K Mr. KILNER ... Mac{Mr Macintosh} Mr. MACKINTOSH ... Mer Mr. MERCER ... M Mr. MOON ... Na{Mr Nadin} Mr. NADIN ... PN{Mr Northey} Mr. NORTHEY ... O Mr. OLDHAM ... Pa{Mr Paterson} Mr. PATERSON ... EP{G. Eric Platford - Chief Quality Engineer} Mr. PLATFORD ... Rn{Mr Robinson} Mr. ROBINSON ... R Mr. ROYCE ... RS{Sir Henry Royce's Secretary} Mr. ROYCE'S Secretary ... 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 ... Wa{Mr Wallis} Mr. WALLIS ... Whr{Mr Wheeler} Mr. WHEELER ... Wd{Mr Wood/Mr Whitehead} Mr. WHITEHEAD ... Wor{Arthur Wormald - General Works Manager} Mr. WORMALD ... H2/EM271015 (Cont.) re Steering Wobbles (1886 - Sykes) -2- Pivot lean o/s .050, n/s .150 The following is a list of operations carried out step by step:- 1st Operation. Side play in front spring shackles taken up. Result. No improvement. Oscillations appear to be more pronounced. 2nd Operation Pivot lean corrected to .125 Result. No improvement. 2nd test with standard 895 x 135 tyres. Result Wobble still manifest but not so heavy. 3rd Operation Cross steering tube re-adjusted and new ball pins fitted. Result No improvement with either size tyres. 4th Operation "H" series steering tube fitted (sent from "W" to fit to chassis No. 2015E owner W.Whiteley for steering wobble) Result. There is a tendency for wobble to develop, but it can be definitely produced, and then stops immediately steering wheel is released 2nd test with standard 895 x 135 tyres, pivot lean .125. Result. Steering perfectly satisfactory at high and low speeds. 5th Operation. Pivot lean increased to .175 (still with "H" series tube) Result Wobble again bad and slightest resistance to steering wheel develops it 2nd test with standard 895 x 135 tyres at same pivot lean Result. Wobble does not develop and is hard to bring on. This sheet must be filed with the correspondence to which it refers. | ||