Rolls-Royce Archives
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).
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DescriptionDateIdentifier
Ongoing issues and potential solutions for steering control rattles.27th Jan 1921Box 38 \ 1  Scan078
The failure and weakness of steering gear aluminium boxes.24th Mar 1921Box 38 \ 1  Scan079
The failure of steering gear aluminium boxes.31th Mar 1921Box 38 \ 1  Scan080
Failure of steering gear aluminium boxes and a request for further examination.7th Apr 1921Box 38 \ 1  Scan081
The despatch of a broken steering box to Mr. Royce.20th Jun 1921Box 38 \ 1  Scan082
Failure of 40/50 steering boxes and the need for a design change to prevent sudden breakage.20th Jun 1921Box 38 \ 1  Scan083
Failure of 40/50 model steering boxes.27th Jun 1921Box 38 \ 1  Scan084
Requesting that steering boxes be cast bigger to avoid internal 'hacking' away to get clearance.28th Jun 1921Box 38 \ 1  Scan085
Forwarding a copy of another memo from Paris concerning steering nuts, requesting comments.13th Jul 1921Box 38 \ 1  Scan086
The strength of steering nut housings, identified as a weak point.6th Jul 1921Box 38 \ 1  Scan087
Strengthened rocker arm in the steering box.7th Feb 1922Box 38 \ 1  Scan088
Production issues, part quantities, and scrapping costs for Rocker Arms.13th Feb 1922Box 38 \ 1  Scan089
Summary of correspondence regarding the implementation of a strengthened rocker arm in a steering box.22th Feb 1922Box 38 \ 1  Scan090
Standardization of a strengthened rocker arm for the steering box, considering existing stock and potential safety risks.2nd Mar 1922Box 38 \ 1  Scan091
Use of old versus new strengthened Rocker Arms in the Steering Box.2nd Mar 1922Box 38 \ 1  Scan092
Conference on strengthened rocker arms in steering boxes and using up existing stock.11th Mar 1922Box 38 \ 1  Scan093
Complaint from America about a cracked steering column tube on chassis 51-UB due to a manufacturing defect.23th Aug 1922Box 38 \ 1  Scan094
Investigation into a faulty steering column on a pre-war chassis, including changes to the manufacturing process.25th Aug 1922Box 38 \ 1  Scan095
Steering performance, comparing setups with and without radius rods fitted.6th Sep 1922Box 38 \ 1  Scan096
Issues of slackness in steering box bearings, detailing a customer complaint and proposing component replacement and further investigation.5th Oct 1922Box 38 \ 1  Scan097
Mr. Royce's requested modifications to the steering wheel for the 6.EX car.4th Nov 1922Box 38 \ 1  Scan098
Steering box failures on the 40/50 chassis and proposing a material change to aluminium bronze.11th Dec 1922Box 38 \ 1  Scan099
Letter reporting repeated failures of steering boxes and suggesting the part is proving to be very weak.4th Dec 1922Box 38 \ 1  Scan100
Letter regarding the frequent failure of steering boxes on several cars after minor impacts.12th Dec 1922Box 38 \ 1  Scan101
Standardisation proposal for the Aluminium Bronze Steering Box to overcome failures.12th Dec 1922Box 38 \ 1  Scan102
Steering box failures and recommending a material change from aluminium to aluminium-bronze.12th Dec 1922Box 38 \ 1  Scan103
Standardisation sheets, modifications to the 40/50 chassis, and aero engine work.14th Dec 1922Box 38 \ 1  Scan104
Mr. Royce's requested modifications for an 18-inch steering wheel model.16th Dec 1922Box 38 \ 1  Scan105
Steering wobble, the effect of radius rods, pivot splaying and tyre springiness.20th Dec 1922Box 38 \ 1  Scan106
From B.J. to Hs. regarding Mr. Royce's disagreement with Standardisation Sheet No. 3465 for an Aluminium Bronze Steering Box.1st Jan 1928Box 38 \ 1  Scan107
Steering characteristics, specifically the lack of self-centering and the effects of plain thrust and radius rods.1st Jan 1923Box 38 \ 1  Scan108
Technical analysis of steering column friction, road shock, and pivot design.9th Jan 1923Box 38 \ 1  Scan109
Record of load tests performed on a standard steering system with a diagram.9th Jan 1923Box 38 \ 1  Scan110
Instructions and sketch for testing a steering column under load.9th Jan 1923Box 38 \ 1  Scan111
Comparison of the 40/50 HP steering system with the Delage steering system.10th Jan 1925Box 38 \ 1  Scan112
Report comparing steering effort and road shock transmission between a Delage car and a 40/50 HP model.10th Jan 1925Box 38 \ 1  Scan113
Steering effort tests comparing a 40/50 model, an R.R. model, and a Delage car.13th Jan 1923Box 38 \ 1  Scan114
Pivot inclination angles on front axles for 'Stork', 'Heron', and 'Goshawk' models, referencing wobbling issues and Delage steering.13th Jan 1923Box 38 \ 1  Scan115
Query for particulars of a Delage steering system for comparative calculations against a 40/50 model.15th Jan 1923Box 38 \ 1  Scan116
Design changes to the 'Seagull' steering box, moving to a worm and worm-wheel system.15th Jan 1923Box 38 \ 1  Scan117
Test procedure for a rig designed to test the efficiency of carrying trunnions in the 40/50 steering box.19th Jan 1923Box 38 \ 1  Scan118
The successful implementation of a solid steering nut on the 40/50 model.22th Jan 1923Box 38 \ 1  Scan119
Alterations to a steering mechanism, including abandoning certain components and correcting geometric errors.29th Jan 1923Box 38 \ 1  Scan120
Despatch of a wooden model steering wheel for inspection.3rd Mar 1923Box 38 \ 1  Scan121
New wooden model of a 40/50 steering wheel, considered an improvement.13th Mar 1923Box 38 \ 1  Scan122
Design and standardization of a larger 40/50 steering wheel, comparing it to the Goshawk model.1st Apr 1923Box 38 \ 1  Scan123
Recommendation to make the 17.5-inch celluloid covered steering wheel for the 40/50 model a standard feature.6th Jul 1923Box 38 \ 1  Scan124
The standardisation of an improved taper type ball end for the 40/50 chassis and the required modifications to steering levers.24th Sep 1923Box 38 \ 1  Scan125
Standardisation of a washer for the steering box stud.26th Sep 1923Box 38 \ 1  Scan126
Standardisation of a steering wheel by adding a collar to the spokes to improve finish and appearance.25th Sep 1923Box 38 \ 1  Scan127
Standardisation of a steering box with more room to avoid hand-work.25th Sep 1923Box 38 \ 1  Scan128
Proposed alteration to the steering wheel design for the 40/50 HP chassis and arranging a road test.10th Dec 1923Box 38 \ 1  Scan129
Proposal to standardise the 18-inch Dover type steering wheel for the 40/50HP chassis, including corrections to drawings.12th Dec 1923Box 38 \ 1  Scan130
Design flaws of a proposed larger steering wheel after road testing on a 107-MG vehicle.28th Dec 1923Box 38 \ 1  Scan131
Feedback on a proposed larger steering wheel for the 40/50 HP model.3rd Jan 1924Box 38 \ 1  Scan132
Standardisation document for an improved design of a steering wheel, increasing its diameter.8th Dec 1923Box 38 \ 1  Scan133
Standardisation document for an improved design of steering wheel.8th Dec 1923Box 38 \ 1  Scan134
The specifications for a larger steering wheel for the 40/50 HP model.14th Jan 1924Box 38 \ 1  Scan135
Improved steering wheel design, returning an incomplete sheet and awaiting a new sample.14th Jan 1924Box 38 \ 1  Scan136
New larger diameter 40/50 steering wheel with a thicker rim and rounded spokes.14th Jan 1924Box 38 \ 1  Scan137
Analysis of the factors causing steering wheel movements at high speeds on rough roads.26th Mar 1924Box 38 \ 1  Scan138
Analysis of steering dynamics, including gyroscopic effects, wheel inertia, and front axle anchorage.26th Mar 1924Box 38 \ 1  Scan139
Causes of and solutions for road shocks in car steering systems, including pivot points and wheel design.29th Mar 1924Box 38 \ 1  Scan140
Steering tests for a 40/50 car fitted with a front axle and disc wheels.1st Apr 1924Box 38 \ 1  Scan141
Steering shock when driving over obstacles.1st Apr 1924Box 38 \ 1  Scan142
Steering tests and issues with low-speed wobbles.12th Jul 1923Box 38 \ 1  Scan143
Steering geometry, components and potential modifications to mitigate road shocks.10th Apr 1924Box 38 \ 1  Scan144
Requesting an update on the status of the 40/50 HP steering wheel.7th May 1924Box 38 \ 1  Scan145
Receiving a larger diameter steering wheel for the 40/50 HP model to address sales criticism.12th May 1924Box 38 \ 1  Scan146
Use of floating steering pivot bushes and the superiority of grease over oil for lubrication.14th May 1924Box 38 \ 1  Scan147
Different types of steering wheels for the 40/50 HP chassis.20th May 1924Box 38 \ 1  Scan148
Larger diameter 40/50 HP chassis steering wheel sent for review by the Sales Department.27th May 1924Box 38 \ 1  Scan149
From Hs. to Roy. regarding the purchase of a small wheel for experimental purposes.11th Jun 1924Box 38 \ 1  Scan150
Request to standardise a larger steering wheel for the 40/50 HP model following a sales recommendation.18th Jun 1924Box 38 \ 1  Scan151
Standardisation document for an improved, larger diameter steering wheel.6th Dec 1923Box 38 \ 1  Scan152
Sample steering pivot bush lined with Kelmet metal.26th Sep 1924Box 38 \ 1  Scan153
Despatch of a sample steering pivot bush to Mr. Day in Canada for examination.26th Sep 1924Box 38 \ 1  Scan154
Manufacturing challenges for die-cast steering wheels and evaluating alternative suppliers.30th Jan 1925Box 38 \ 1  Scan155
Clarifying production difficulties with Silvertown and Dover steering wheels.2nd Feb 1925Box 38 \ 1  Scan156
Casting difficulties for steering wheel centres for the present design and the Dover type.2nd Feb 1925Box 38 \ 1  Scan157
Casting difficulties of die-cast versus sand-cast steering wheels.5th Feb 1925Box 38 \ 1  Scan158
Forwarding a blueprint comparing steering on the 40/50 HP chassis, with and without front wheel brakes (F.W.B.).21th Mar 1925Box 38 \ 1  Scan159
The causes and potential solutions for heavy steering issues on the 40/50 and EAC models.27th Apr 1925Box 38 \ 1  Scan160
Unfinished 40/50HP chassis steering wheel being sent for use on an experimental car.7th May 1925Box 38 \ 1  Scan161
Sourcing options, costs, and production issues for 40/50 HP steering wheels.20th May 1925Box 38 \ 1  Scan162
The quality of 40/50 HP steering wheels, proposing a move from cast centres to forged Duralumin centres.27th May 1925Box 38 \ 1  Scan163
Steering wobble problem for clients Carlos de Salamanca and the King of Spain, and a proposed patented solution.20th Jun 1925Box 38 \ 1  Scan164
Extract discussing steering box mounting issues on 40/50 and EAC models and proposed solutions.29th Apr 1925Box 38 \ 1  Scan165
Requesting a larger diameter experimental steering wheel for car 78-FW.9th Feb 1925Box 38 \ 1  Scan166
'wheel wobble' issue, requesting the chassis number for further diagnosis.16th Oct 1925Box 38 \ 1  Scan167
Diagnosing the cause of wheel wobble and illustrating a method of correction.12th Jun 1925Box 38 \ 1  Scan168
Recommendations to correct low-speed wobble and shimmy.16th Oct 1925Box 38 \ 1  Scan169
New Phantom car being taken to France for a 10,000-mile test.24th Oct 1925Box 38 \ 1  Scan170
Discussion about steering wobble issues on 'Silver Ghost' models fitted with front-wheel brakes.23th Oct 1925Box 38 \ 1  Scan171
Internal report discussing the correct phrasing for a letter to owners about front wheel balancing on Silver Ghost cars.12th Jun 1925Box 38 \ 1  Scan172
Standardisation of the steering wheel size for the New Phantom.10th Mar 1926Box 38 \ 1  Scan173
Two potential causes of steering stiffness on chassis No. 22-LC.13th Mar 1926Box 38 \ 1  Scan174
Performance data for a Silver Ghost type nut and worm with 1.125 lead.13th Mar 1926Box 38 \ 1  Scan175
Calculation sheet for a Silver Ghost type Nut & Worm with a 1.125 lead, detailing loads, efforts, and efficiencies.13th Mar 1926Box 38 \ 1  Scan176
From 'R.' to 'J.' discussing the bonding of radiator tanks to the matrix, referencing a previous memo from Mr. Wormald.19th Dec 1918Box 38 \ 2  Scan001


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