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
Coachwork modifications and delivery schedule for the first EAC. 8 chassis destined for France.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan46
Proposing to fit a rubber upward stop to the accelerator pedal, referencing scheme 2142.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan47
Sending scheme 2140 for a modified rear axle tube suitable for a 58' track, including a new stress diagram.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan48
Confirming the dispatch of all required information to construct the first E.A.C. 8 chassis.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan49
Need to stiffen the 20HP steering column and proposing design solutions.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan50
Suggestions to remedy oscillation in a hydraulic shock absorber by modifying the valve and piston guide.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan51
Valve design to prevent a piston effect and issues with trapped air in the oil circulation.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan52
Proposing a scheme for constructing a brake pedal and asking for feedback on manufacturing.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan53
Telegram requesting a copy of a later telegram concerning a twenty horse power steering system.10th Feb 1926West Wittering \ O \ January1926-March1926  Scan54
Issues and proposed solutions for Phantom & Goshawk oil relief valves.13th Feb 1926West Wittering \ O \ January1926-March1926  Scan55
Urgently needed hydraulic shock dampers, proposing three novel combinations for patenting.13th Feb 1926West Wittering \ O \ January1926-March1926  Scan56
List of features for double-acting shock dampers with unequal action, with reference to an attached sketch.1st Feb 1937West Wittering \ O \ January1926-March1926  Scan57
Diagrams and notes concerning a hydraulic damper system with relief valves and a detailed vent mechanism.1st Feb 1937West Wittering \ O \ January1926-March1926  Scan58
With sketches proposing design modifications for a petrol filler and gauge assembly.15th Feb 1926West Wittering \ O \ January1926-March1926  Scan59
Design review memo with a sketch, discussing component simplicity, a petrol gauge, and a tank filter.18th Feb 1938West Wittering \ O \ January1926-March1926  Scan60
EAC controls, including magneto controls, column controls, and ball joint designs.15th Feb 1926West Wittering \ O \ January1926-March1926  Scan61
Alternative schemes for a frame gusset on the second cross member.17th Feb 1926West Wittering \ O \ January1926-March1926  Scan62
Design schemes for a rear spring front anchorage, pending feedback from Mr. Royce.17th Feb 1926West Wittering \ O \ January1926-March1926  Scan63
Testing and stiffness of a new 20HP steering column.18th Feb 1926West Wittering \ O \ January1926-March1926  Scan64
Telegram advising that a 'Torpedo' model will not be ready on Friday and a new date will follow.16th Feb 1926West Wittering \ O \ January1926-March1926  Scan65
Practical semi-automatic brake adjustment system using a fine ratchet mechanism.1st Feb 1926West Wittering \ O \ January1926-March1926  Scan66
Benefits of hydraulic shock dampers, tyre pressures, and a proposed design change to the relief valve.19th Feb 1926West Wittering \ O \ January1926-March1926  Scan67
Sending scheme 2147 showing the 20HP cast dash for the 'B' type steering.19th Feb 1926West Wittering \ O \ January1926-March1926  Scan68
Engineering schemes and experiments for heating the throttles on the Phantom model.19th Feb 1926West Wittering \ O \ January1926-March1926  Scan69
Superheated water scheme for engine jackets and the merits of an exhaust-heated throttle.19th Feb 1926West Wittering \ O \ January1926-March1926  Scan70
Scheme 2146 for a cast dashboard for the 20HP 'D' type steering model.19th Feb 1926West Wittering \ O \ January1926-March1926  Scan71
Design improvements for step irons, wing stays, spare wheel and luggage carriers.19th Feb 1926West Wittering \ O \ January1926-March1926  Scan72
Inquiring about the proposed standardization of Phantom oil relief valves and reporting progress on a new guideless valve design.2nd Feb 1926West Wittering \ O \ January1926-March1926  Scan73
Modifications to hydraulic shock dampers regarding valve chattering, oil filters, and material choice.22th Feb 1926West Wittering \ O \ January1926-March1926  Scan74
Test for a lighter Phantom engine using shorter rods to reduce weight and crankcase height.23th Feb 1926West Wittering \ O \ January1926-March1926  Scan75
Proposing a chassis test for a Phantom cylinder head with opposed sparking plugs to investigate engine popping.23th Feb 1926West Wittering \ O \ January1926-March1926  Scan76
Tests and modifications for Phantom induction pipes to overcome fuel separation issues.24th Feb 1926West Wittering \ O \ January1926-March1926  Scan77
Improvements to the Phantom's suspension system, comparing it to the Silver Ghost.25th Feb 1926West Wittering \ O \ January1926-March1926  Scan78
Comparison of the New Phantom's road noise and performance against the Silver Ghost model.29th Feb 1928West Wittering \ O \ January1926-March1926  Scan79
On replacing 20.HP. rear axle thrust bearings and improving parts production.25th Feb 1926West Wittering \ O \ January1926-March1926  Scan80
Failure of a hydraulic shock damper link, proposing design improvements, and considering its application on various axles.25th Feb 1926West Wittering \ O \ January1926-March1926  Scan81
Alternative design for the front end of the rear spring and comparing it with the 20HP scheme.26th Feb 1926West Wittering \ O \ January1926-March1926  Scan82
Effectiveness of hydraulic shock dampers for reducing high-speed steering wobble and planning further tests.26th Feb 1926West Wittering \ O \ January1926-March1926  Scan83
Oil leak issue in shock dampers and proposing a temporary fix with a sketch.2nd Feb 1926West Wittering \ O \ January1926-March1926  Scan84
Accessibility issues with a new shock damper valve and requesting a design modification.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan85
Intended mounting of the 'India Cast Dash' to avoid developing strains.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan86
Advocating for the adoption of hydraulic shock dampers, semi-balloon tyres, and a lighter front axle for Phantom & Goshawk models.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan87
Dashboard rigidity and a proposed modification to its fixings.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan88
Comparative testing and production delays of back axle controls for the Phantom model.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan89
Improvements and standardisation for a combined rear petrol tank, carrier, and guard.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan90
Blueprint with revised proposals for a lighter Phantom engine with an aluminium cylinder head and block.27th Feb 1926West Wittering \ O \ January1926-March1926  Scan91
Hydraulic shock dampers, discussing a broken link, potential improvements, and a comparison with a Lanchester patent.3rd Mar 1926West Wittering \ O \ January1926-March1926  Scan92
Instructions for modifications to the gearbox and engine starter.1st Mar 1926West Wittering \ O \ January1926-March1926  Scan93
Progress on a lighter clutch, flywheel, propeller shaft, joints, and gearbox modifications.9th Mar 1938West Wittering \ O \ January1926-March1926  Scan94
Oil leakage issues and proposed modifications for hydraulic shock dampers.3rd Mar 1926West Wittering \ O \ January1926-March1926  Scan95
Proposed modifications to the 20HP induction and exhaust pipes with a strengthened flange.2nd Mar 1926West Wittering \ O \ January1926-March1926  Scan96
Design improvements for hydraulic shock dampers, including valve and filter modifications.1st Mar 1926West Wittering \ O \ January1926-March1926  Scan97
Protecting a central piston from grit using gauze filters.1st Nov 1936West Wittering \ O \ January1926-March1926  Scan98
Revisions to a petrol tank's side filler and vent pipe based on new instructions.2nd Mar 1926West Wittering \ O \ January1926-March1926  Scan99
Working on shock dampers locally, sending proposals for a 40/50 back axle, and awaiting details for an EAC 7 car test run.2nd Mar 1926West Wittering \ O \ January1926-March1926  Scan100
Design of oil relief valves and the challenges related to the flexibility of bow springs.3rd Mar 1926West Wittering \ O \ January1926-March1926  Scan101
One-piece bow springs, materials, valve accessibility, and instructions for pump casing works.1st Mar 1928West Wittering \ O \ January1926-March1926  Scan102
Sending drawings for a 20HP oil pump relief valve and an alternative scheme.4th Mar 1926West Wittering \ O \ January1926-March1926  Scan103
Suggested improvements to hydraulic shock dampers, including referencing N. scheme 2153.4th Mar 1926West Wittering \ O \ January1926-March1926  Scan104
Patent and modifications for friction in suspension links for the 4-wheel brake balancing gear on the New Phantom.4th Mar 1926West Wittering \ O \ January1926-March1926  Scan105
Four recent modifications and improvements made to the New Phantom steering system.4th Mar 1926West Wittering \ O \ January1926-March1926  Scan106
Potential design improvements for a worm and nut mechanism, including oil retention and comparison with a Hispano design.4th Mar 1926West Wittering \ O \ January1926-March1926  Scan107
The status and collection of experimental torpedo and cabriolet bodies from Barkers.4th Mar 1926West Wittering \ O \ January1926-March1926  Scan108
Potential solutions for oil loss in hydraulic shock dampers, including a diagram.5th Mar 1926West Wittering \ O \ January1926-March1926  Scan109
Design proposal for a double valve, including a cross-section diagram and discussion of its features.8th May 1936West Wittering \ O \ January1926-March1926  Scan110
List detailing specifications for experimental cars designated E.A.C. 1 through 6.5th Mar 1926West Wittering \ O \ January1926-March1926  Scan111
List of specifications for various car models and their revisions, noted as page 2.6th Mar 1926West Wittering \ O \ January1926-March1926  Scan112
Seeking clarification about test readings for Marles Steering, specifically regarding the mean of lubricated and unlubricated states.6th Mar 1926West Wittering \ O \ January1926-March1926  Scan113
Modifying the Phantom cylinder head for improved combustion, turbulence, and spark plug placement.6th Mar 1925West Wittering \ O \ January1926-March1926  Scan114
Technical comparison of various engine head designs to optimize gas turbulence.6th Mar 1925West Wittering \ O \ January1926-March1926  Scan115
Page (3) of a document discussing methods for producing turbulence in relation to piston and plug positioning.8th Mar 1926West Wittering \ O \ January1926-March1926  Scan116
Recommendation to use soft aluminium washers in place of fibre ones.8th Mar 1926West Wittering \ O \ January1926-March1926  Scan117
Modifications to the New Phantom spare wheel carrier to accommodate coachbuilder requirements.9th Mar 1926West Wittering \ O \ January1926-March1926  Scan118
Experiments and suggestions for the Phantom automatic ignition advance mechanism.11th Mar 1926West Wittering \ O \ January1926-March1926  Scan119
Design improvements for a Phantom Aluminium Head induction pipe bolting.10th Mar 1926West Wittering \ O \ January1926-March1926  Scan120
Drawing LeC. 2212 for a Phantom Aluminium Head, discussing modifications to flanges and sparking plug holes.10th Mar 1926West Wittering \ O \ January1926-March1926  Scan121
Experimental modifications to hydraulic shock dampers based on N. scheme 2159.1st Mar 1926West Wittering \ O \ January1926-March1926  Scan122
Design schemes for double rear brakes, awaiting further remarks before proceeding with detailing.11th Mar 1926West Wittering \ O \ January1926-March1926  Scan123
On fitting the existing New Phantom rear brakes to the first EAC. 7 model.11th Mar 1926West Wittering \ O \ January1926-March1926  Scan124
The design, operation, and advantages of a double acting autovac tank originating from Germany.12th Mar 1926West Wittering \ O \ January1926-March1926  Scan125
Improved petrol supply system and autovac device, proposing a model be sent for trial on a chassis.12th Mar 1926West Wittering \ O \ January1926-March1926  Scan126
List of design comments and proposed modifications for a hydraulic shock damper.12th Mar 1926West Wittering \ O \ January1926-March1926  Scan127
Design notes and sketches for a plug and piston valve assembly.13th Mar 1926West Wittering \ O \ January1926-March1926  Scan128
Design, materials, and lubrication for a .720 worm and nut assembly.13th Mar 1926West Wittering \ O \ January1926-March1926  Scan129
Improvements to the Phantom model's rear springs, shock dampers, and tyres.15th Mar 1926West Wittering \ O \ January1926-March1926  Scan130
Car suspension and ride comfort, discussing tyres, cushions, shock dampers, and road springs.13th Mar 1926West Wittering \ O \ January1926-March1926  Scan131
Issues with sticking Phantom oil pressure relief valves and proposed solutions.13th Mar 1926West Wittering \ O \ January1926-March1926  Scan132
Design of rear springs for the new EAC 7 frame, suggesting modifications.13th Mar 1926West Wittering \ O \ January1926-March1926  Scan133
Sticking valve on a Phantom Cutout, proposing material changes and a screw stop mechanism.15th Mar 1926West Wittering \ O \ January1926-March1926  Scan134
Telegram with handwritten instructions for improving a Phantom's suspension and comfort.16th Mar 1926West Wittering \ O \ January1926-March1926  Scan135
Post Office Telegram with a handwritten message concerning front springs and a light engine head for turbulence.16th Mar 1926West Wittering \ O \ January1926-March1926  Scan136
Telegram regarding an issue with changing shock dampers due to bolt centre measurements.6th Apr 1914West Wittering \ O \ January1926-March1926  Scan137
Improvements for car instruments, instrument boards, and petrol gauges.16th Mar 1926West Wittering \ O \ January1926-March1926  Scan139
Characteristics and performance of special Woodhead front road springs.16th Mar 1926West Wittering \ O \ January1926-March1926  Scan140
Ride comfort and springing of the Phantom model, comparing it to other models and suggesting improvements.18th Mar 1926West Wittering \ O \ January1926-March1926  Scan141
Improving vehicle suspension, discussing tyres, shock dampers, and spring design.23th Mar 1928West Wittering \ O \ January1926-March1926  Scan142
Blueprints for the Phantom oil pressure relief valve.18th Mar 1926West Wittering \ O \ January1926-March1926  Scan143
Unsatisfactory rear seat ride quality in the Phantom model and proposed testing solutions.19th Mar 1926West Wittering \ O \ January1926-March1926  Scan144
With a sketch suggesting design improvements for a hydraulic shock damper filter.19th Mar 1926West Wittering \ O \ January1926-March1926  Scan145
Investigation into the suspension differences between the Silver Ghost, 20HP, and New Phantom chassis.19th Mar 1926West Wittering \ O \ January1926-March1926  Scan146
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