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
New procedure for boring the Wraith crankcase to incline the bottom tappets.10th Aug 1937Box 132 \ 3  scan0071
Decisions and further alterations required for the Wraith III crankcase pattern to reach its final production form.12th Aug 1937Box 132 \ 3  scan0072
Drawing of the Wraith III crankcase, detailing the wheelcase and clutch case contours.17th Aug 1937Box 132 \ 3  scan0073
Instructions and drawing list for a crankcase conversion experiment on the Wraith III chassis.17th Aug 1937Box 132 \ 3  scan0074
Listing new blue prints for the Phantom III Chassis relating to the standardization of solid rockers.26th Aug 1937Box 132 \ 3  scan0075
Modifications to the Wraith III front crankcase facing and related components.28th Aug 1937Box 132 \ 3  scan0076
Modifications to the Wraith III's rear crankcase flange, clutch casing, and pedals.28th Aug 1937Box 132 \ 3  scan0077
Instructions for the production of 6 sets of Wheelcase & Fittings for the Wraith III Chassis.16th Oct 1937Box 132 \ 3  scan0078
List of tracings for the Wraith III Chassis crankcase and bearings, for revision or addition of operations.26th Oct 1937Box 132 \ 3  scan0079
Continued list of engine components with part numbers and a production instruction.26th Oct 1937Box 132 \ 3  scan0080
Request to modify the Wraith III crankcase pattern, reverting from stud bosses to bolts.29th Oct 1937Box 132 \ 3  scan0081
The replacement of tracings for the Wraith III Chassis crankcase and bearings.12th Nov 1937Box 132 \ 3  scan0082
Simplification and foundry economies of removing water connection passages from the Phantom 111 upper crankcase.21th Dec 1937Box 132 \ 3  scan0083
Revised torque reaction damper for a Wraith III to suit a modified crankcase.18th Jan 1938Box 132 \ 3  scan0084
Confirming a hold on scheme ECD.396 for the Wraith III revised torque reaction damper, pending experimentation with a rubber replacement.20th Jan 1938Box 132 \ 3  scan0085
Deletion of the front engine support feet for the Wraith III crankcase.11th Feb 1938Box 132 \ 3  scan0086
Fitment of bearing caps on a Wraith crankcase.15th Feb 1938Box 132 \ 3  scan0087
Request to modify the Wraith III crankcase to improve clearance for a box spanner.2nd Mar 1938Box 132 \ 3  scan0088
Instructions for modifying a Bentley III engine to accommodate thin strip bearings.5th Mar 1938Box 132 \ 3  scan0089
Box spanner clearances for the Wraith III crankcase and requesting modifications.7th Mar 1938Box 132 \ 3  scan0090
Blueprint comparing box spanner clearances for the 25/30 & Bentley II against the Wraith & Bentley III models.10th Mar 1938Box 132 \ 3  scan0091
The design and specifications for the Bentley 50 crankcase and crankshaft.10th Mar 1938Box 132 \ 3  scan0092
Drawing for the Bentley 50 Crankcase & Bearings.10th Mar 1938Box 132 \ 3  scan0093
Modification to the Wraith III crankcase for a new box spanner.15th Mar 1938Box 132 \ 3  scan0094
Spanner clearances for the Wraith III crankcase, criticizing the supplied box spanner and advising against minimal clearances.21th Mar 1938Box 132 \ 3  scan0095
Alterations to the Phantom III crankcase and crankshaft for a 15,000 miles test car.2nd May 1938Box 132 \ 3  scan0096
Instruction to make the crankcase and bearings for the Wraith 'B' Series (101-300) without liners or shims.3rd May 1938Box 132 \ 3  scan0097
Instruction for a revised mounting for the A.C. Filter on the Wraith III and Bentley III chassis, detailing new and obsolete parts.16th May 1938Box 132 \ 3  scan0098
Confirming the manufacturing feasibility of connection E.76930 as a hot brass pressing and outlining cost savings.27th Jun 1938Box 132 \ 3  scan0099
New design for a crankcase rear end cover and oil retainer for the Wraith III.28th Jun 1938Box 132 \ 3  scan0100
Comparison of the time, metal removal, and tool changes for drilling the Wraith versus Bentley crankcase top half.7th Jul 1938Box 132 \ 3  scan0101
Analysis of the Wraith Crankcase manufacturing process, detailing increased operating time and costs and proposing design simplification.2nd Aug 1938Box 132 \ 3  scan0102
Casting issues with the Phantom III crankcase and a proposed redesign.2nd Aug 1938Box 132 \ 3  scan0103
Instructions regarding new drawings for a modified camshaft and barrel type tappets for the Bentley III and Wraith III chassis.3rd Sep 1938Box 132 \ 3  scan0104
Parts update notification for the Bentley III and 25/30 HP Chassis, detailing new drawings and required/obsolete parts for the oil system.9th Aug 1938Box 132 \ 3  scan0105
Continuation page listing parts required for Section S200.9th Aug 1938Box 132 \ 3  scan0106
Tests on crankcase ventilation to reduce acidity, corrosion, and oil leaks, with a suggested modification for B.III and Wraith models.16th Sep 1938Box 132 \ 3  scan0107
Crankcase ventilation tests conducted on Oldsmobile and Wraith engines.14th Sep 1938Box 132 \ 3  scan0108
Various breather pipe modifications and their effect on crankcase pressure.14th Sep 1938Box 132 \ 3  scan0109
Half-size scale blueprint of a Venturi Breather for a crankcase.14th Sep 1938Box 132 \ 3  scan0110
Blueprint diagram illustrating a modification to an existing breather pipe assembly.10th Aug 1938Box 132 \ 3  scan0111
Graph plotting gas flow through an Oldsmobile extractor breather against speed under three different inlet conditions.10th Aug 1938Box 132 \ 3  scan0112
Graph plotting Oldsmobile crankcase pressure in inches of water against speed in M.P.H. under four different test conditions.10th Aug 1938Box 132 \ 3  scan0113
Graph comparing crankcase breather pressures at various speeds for different breather configurations.30th Aug 1938Box 132 \ 3  scan0114
Parts list for a simplified oil filter modification on a Wraith III chassis, requesting a cost comparison against the replaced parts.30th Nov 1938Box 132 \ 3  scan0115
Continuation of a parts list for section 5000, detailing a nut and a joint washer.30th Nov 1938Box 132 \ 3  scan0116
List of parts and blueprints for the Wraith III chassis crankcase, bearings, and oil filter.6th Dec 1938Box 132 \ 3  scan0117
List of parts that are no longer required, resulting in a cost saving per chassis.6th Dec 1938Box 132 \ 3  scan0118
Lack of a Packard type crank for a Phantom III and a preference for Bowers' recommendation on balance weights.10th Dec 1938Box 132 \ 3  scan0119
Parts list for the Wraith III Crankcase, Dynamo Drive, and Wheelcase & Fittings.4th Jan 1939Box 132 \ 3  scan0120
Request for the cost of replacement parts, including a wheelcase, crankcase, and stud.4th Jan 1939Box 132 \ 3  scan0121
Crankcase and clutch cone for the Bentley 5 experimental production chassis.26th Jan 1939Box 132 \ 3  scan0122
Crankcase modification and required parts for the Bentley V chassis.17th May 1939Box 132 \ 3  scan0123
Purchase order be sent to Messrs Pickford for two crankshaft dampers.22th Feb 1940Box 132 \ 3  scan0124
Dispatch of blueprints for RE.112 and a pending modification for RE.107.27th Feb 1940Box 132 \ 3  scan0125
Alteration note for crankcase and cylinders detailing dimensional changes.15th Mar 1940Box 132 \ 3  scan0126
Alterations to the hole for the water rail on the wheelcase end, including dimensional changes and the reasons for modification.15th Mar 1940Box 132 \ 3  scan0127
Alteration note to remove surplus metal from the exhaust port due to casting build-up.21th Mar 1940Box 132 \ 3  scan0128
Alteration note for a B40 3.500 Bore engine's crankcase and cylinders.21th Mar 1940Box 132 \ 3  scan0129
The distribution of two new blueprints for a Front Bearing Bush and a Stud for the Tappet Cover.18th Mar 1940Box 132 \ 3  scan0130
Sending of blueprints for a water gallery and cylinder head joint washer.18th Mar 1940Box 132 \ 3  scan0131
Blueprints for the B.60 75 M/M Bore crankcase and cylinders.20th Mar 1940Box 132 \ 3  scan0132
Accompanying preliminary blueprints for a B. 60. 3.500 Bore crankcase and cylinders.20th Mar 1940Box 132 \ 3  scan0133
New pattern for a rationalised six-cylinder engine crank-case.28th Mar 1940Box 132 \ 3  scan0134
Alteration notice for the Crankcase & Cylinders Lop, replacing Tappet Cover EB4777 with RE 798.4th Apr 1940Box 132 \ 3  scan0135
Cover sheet listing blueprints for B. 80 Alum Engine components.9th Apr 1940Box 132 \ 3  scan0136
Alteration notice for the B.80 crankcase and cylinders, specifying the width of camshaft bosses.10th Apr 1940Box 132 \ 3  scan0137
Request sent to Messrs. Rotax Ltd. for a service and spare manual for a Direct Cranking Starter Motor, Type E 160 C.22th Nov 1940Box 132 \ 3  scan0138
Scuttle isolation for Bensport, referencing schedule number 3486.9th Jun 1932Box 132 \ 3  scan0139
Design of the Bensport dashboard casting and its fixing to the frame.10th Sep 1932Box 132 \ 3  scan0140
Design changes to the sloping footboard for the Bensport model.12th Oct 1932Box 132 \ 3  scan0141
Modifications to the front floorboards and gearbox tower for a Bensport (B.3.) vehicle.22th Nov 1932Box 132 \ 3  scan0142
Drawings for the Bensport front floor, modified to accommodate the J.L. engine.24th Nov 1932Box 132 \ 3  scan0143
Issue with the rubber beading on a Bentley dashboard and proposing a solution using clips.13th Jul 1933Box 132 \ 3  scan0144
Standardisation report for a magnesium dashboard and clutch pit to save weight.9th Sep 1935Box 132 \ 3  scan0145
Cost comparison analysis for old and new Dashboard and Clutch Casing parts, detailing material, labour, and other charges.28th Jun 1935Box 132 \ 3  scan0146
Relocation of the 'Datum Back of Dash' line for the Wraith II model.1st Jul 1936Box 132 \ 3  scan0147
Modifications for the Wraith II dashboard, comparing its components and design to the Phantom III.15th Jul 1936Box 132 \ 3  scan0148
Method for holding rubber on the Bentley Dashboard, proposing a switch to Ferodo bonnet rests.17th Nov 1936Box 132 \ 3  scan0149
The standardization of the Ferodo bonnet rest scheme for Bentley vehicles.8th Dec 1936Box 132 \ 3  scan0150
The fitting of aluminium bonnet rest angles to the Wraith II dashboard.14th Jan 1937Box 132 \ 3  scan0151
Instructions regarding the production of a modified bonnet rest with wider interlacing strip for the Phantom III dashboard.19th Jan 1937Box 132 \ 3  scan0152
Request to despatch a model of a Bentley Scuttle to Mr. J. L. Evans at Lillie Hall.17th Mar 1937Box 132 \ 3  scan0153
Confirming the dispatch of a half section of the Bentley scuttle.17th Mar 1937Box 132 \ 3  scan0154
Modifications to the Wraith III dash brackets and accelerator pedal assembly.20th Apr 1937Box 132 \ 3  scan0155
Service complaint memo regarding Bentley instrument lighting, specifically a dark patch on the speedometer.20th May 1937Box 132 \ 3  scan0156
The testing of a wider Bentley dashboard and its potential standardisation.25th Jun 1937Box 132 \ 3  scan0157
Use of a Bentley III dashboard on the current Bentley chassis, questioning its necessity and benefit.2nd Jul 1937Box 132 \ 3  scan0158
Modified dashboard layout including component placement and cost savings.28th Sep 1937Box 132 \ 3  scan0159
Scheme document for the dashboard casting of the Bentley 111.7th Oct 1937Box 132 \ 3  scan0160
Requesting an order for six sets of parts for the oil tank on the dash of a Wraith III chassis.13th Oct 1937Box 132 \ 3  scan0161
List of blueprint and production parts for a Wraith Dashboard modification.15th Oct 1937Box 132 \ 3  scan0162
Requesting an order for 6 sets of dashboard and fitting parts for the Wraith III chassis.3rd Nov 1937Box 132 \ 3  scan0163
The Bentley 111 dashboard casting for a dropped frame.5th Nov 1937Box 132 \ 3  scan0164
Reduction of cost for the Bentley III dashboard by switching materials.26th Nov 1937Box 132 \ 3  scan0165
Modification to the Bentley dashboard, involving the deletion of cast beading.14th Jan 1938Box 132 \ 3  scan0166
Scheme detailing the left hand dash bracket and ramp board support for the Bentley 111 chassis.21th Jan 1938Box 132 \ 3  scan0167
Scheme detailing the arrangement of the engine side of the dashboard for a Bentley 111.21th Jan 1938Box 132 \ 3  scan0168
The modifications to the dashboard layout for the Wraith III model.26th Jan 1938Box 132 \ 3  scan0169
Request to Park Ward & Co. Ltd. for dashboard material and leather for a Grey Bentley.17th Feb 1938Box 132 \ 3  scan0170


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