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
Confirming the issue of four blueprints for an Inlet Pipe (Ex.S.1346) for the Bentley V. Chassis.30th Dec 1938Box 99 \ 1  scan0036
Requesting instruction to release altered drawings for the B.V. Induction System, deleting automatic devices and retaining hand control.25th Feb 1939Box 99 \ 1  scan0037
The issue of blueprints for a modernised induction pipe (EXS.1507) for the Bentley V chassis.1st Mar 1939Box 99 \ 1  scan0038
Cancelling instructions for a hand mixture control and reverting to the automatic starting carburetter.13th Mar 1939Box 99 \ 1  scan0039
Issuing blueprints for a Support Bracket for the Carburettor Air Silencer on a Bentley V Chassis.17th Mar 1939Box 99 \ 1  scan0040
Modifications to the engine controls for the Bentley V model.21th Mar 1939Box 99 \ 1  scan0041
Agreeing to proposals concerning the B.V. Induction System.22th Mar 1939Box 99 \ 1  scan0042
Request for a revised scheme for the B.V. Induction System to incorporate fully automatic mixture control on S.U. carburettors.1st Apr 1939Box 99 \ 1  scan0043
Specification sheet for the S.U. Carburetter Type H.4 with an automatic starting device.19th Apr 1939Box 99 \ 1  scan0044
Modification to the throttle controls on the Bentley V engine to cure a persistent rattle.21th Apr 1939Box 99 \ 1  scan0045
Modification of throttle controls for the Bentley V engine to cure a rattle.21th Apr 1939Box 99 \ 1  scan0046
Instruction to hold up the supply of S.U. Carburetter and Induction Pipe for the Bentley 5 model.26th Apr 1939Box 99 \ 1  scan0047
Proposing a modified throttle control scheme for Bentley V cars for production.3rd May 1939Box 99 \ 1  scan0048
Requesting a drawing for an alteration to the Bentley V automatic carburation system to improve fuel distribution.12th May 1939Box 99 \ 1  scan0049
New design for a Bentley V induction manifold with a cast-in starter passage.25th May 1939Box 99 \ 1  scan0050
Modifications to the Bentley V S.U. starter carburetter to prevent it from freezing up.25th May 1939Box 99 \ 1  scan0051
Modification of the induction pipe and starter carburetter connections using a cast starter passage.2nd Jun 1939Box 99 \ 1  scan0052
Fitting induction manifolds (EB.4995) for production confirmation trials.30th Jun 1939Box 99 \ 1  scan0053
Request to revert modifications to S.U. Startex Needles due to the new design being useless.10th Jul 1939Box 99 \ 1  scan0054
Requesting a report on the B.V. starting carburetter and induction pipe programme.3rd Aug 1939Box 99 \ 1  scan0055
Modification to the cast-in starter passage for the B.V. model, highlighting the process for production parts.22th Aug 1939Box 99 \ 1  scan0056
Comparison of two inlet pipe designs for the B.V. induction system to improve starting mixture distribution.22th Aug 1939Box 99 \ 1  scan0057
Modifications to induction pipes on early production Corniche units.22th Aug 1939Box 99 \ 1  scan0058
Hole to be added to the cast-in starter passage for the B.V. and Corniche models.23th Aug 1939Box 99 \ 1  scan0059
Summary report on the disadvantages of the Bentley V. S.U. Startex Carburetter and proposed solutions.21th Feb 1940Box 99 \ 1  scan0060
The disadvantages and potential modifications for the Bentley V, S.U. Startex carburetter.21th Feb 1940Box 99 \ 1  scan0061
Carburetter modifications and design considerations to prevent icing and improve starting.1st Aug 1940Box 99 \ 1  scan0062
Analysis of engine starting problems, including freezing in rich positions and bad fuel distribution.21th Feb 1940Box 99 \ 1  scan0063
Schematic comparing the Standard S.U. Startex with two proposed antifreeze schemes.16th Feb 1940Box 99 \ 1  scan0064
Requesting a covering order for an anticipated charge for an instrument overhaul.28th Mar 1940Box 99 \ 1  scan0065
Request for details on the Startex anti-freeze scheme for the Bentley V S.U. Startex Carburetter.13th May 1940Box 99 \ 1  scan0066
Freezing defect in the B.V. starting carburettor and the decision to implement Scheme 1.25th Apr 1940Box 99 \ 1  scan0067
Modification to the S.U. Startex carburetter to prevent freezing up.29th May 1940Box 99 \ 1  scan0068
Bentley publicity, car trials, and gearbox modifications.13th Feb 1941Box 99 \ 1  scan0069
Correspondence with S.U. Carburetter Co. Ltd. regarding throttle body distortion and potential reversion to original type carburettors for the Bentley V.16th Feb 1941Box 99 \ 1  scan0070
Confirming a discussion about B.V. Carburation and potential reversion to B.II carburetters.27th Feb 1941Box 99 \ 1  scan0071
The agreed test programme for carburetter performance on the Bentley V model.28th Feb 1941Box 99 \ 1  scan0072
Request to the S.U. Carburetter Co Ltd. for the supply of specific carburetter needles.25th Mar 1941Box 99 \ 1  scan0073
Outlining the next steps for testing B.V. carburation systems.2nd Jul 1941Box 99 \ 1  scan0074
Arguing against making the Bentley III flywheel and clutch identical with the Wraith III, recommending the retention of the standard 10' clutch.21th Apr 1937Box 99 \ 1  scan0075
Short memo regarding the specifications for the Bentley III clutch.23th Aug 1937Box 99 \ 1  scan0076
The design of the clutch casing and clutch actuation for the Bentley 111 model.23th Aug 1937Box 99 \ 1  scan0077
The Bentley 111 Clutch Casing and Clutch Actuation.25th Aug 1937Box 99 \ 1  scan0078
The clutch assembly for the Wraith III and Bentley III models.11th Nov 1937Box 99 \ 1  scan0079
Modifications to the crankcase and clutch casing for the Wraith and Bentley 111 models.10th Mar 1938Box 99 \ 1  scan0080
Comparing a 10-inch and 11-inch clutch for the Bentley III & 50 chassis, recommending the smaller size.5th Aug 1938Box 99 \ 1  scan0081
Instruction memo regarding the fitting of a new flexible flywheel and clutch to a chassis unit.9th Aug 1938Box 99 \ 1  scan0082
The flywheel and clutch, specifically changing from an 11-inch to a 10-inch clutch on Bentley units.26th Oct 1938Box 99 \ 1  scan0083
B.III and B.50 flywheel and clutch.2nd Nov 1938Box 99 \ 1  scan0084
Confirming receipt of Bentley III 'Top Dog' clutch facings and requesting an official order.7th Nov 1938Box 99 \ 1  scan0085
Flywheels for B.III units numbers 6 and 7.11th Nov 1938Box 99 \ 1  scan0086
Confirming an agreement to fit a Wraith type standard flywheel and clutch to get an engine running, with a request for a future replacement.16th Nov 1938Box 99 \ 1  scan0087
Fitting a new clutch pedal mechanism to car 9.B.V.22th Dec 1938Box 99 \ 1  scan0088
To hold the sinking of dies for a Bentley V clutch pedal due to a contemplated alteration.4th Jan 1939Box 99 \ 1  scan0089
Production of B.V. Flywheels and their required components from specific forgings.11th Jan 1939Box 99 \ 1  scan0090
Requesting new drawings for a flexible flywheel and 10 inch clutch for experimental production.13th Jan 1939Box 99 \ 1  scan0091
Instruction to fit a flexible flywheel with a 10' Long clutch to Unit B.V.4, Chassis 9.B.V.27th Feb 1939Box 99 \ 1  scan0092
Alterations for a flexible flywheel disc for a Bentley V, including a sketch.20th Apr 1939Box 99 \ 1  scan0093
Requesting the preparation and testing of a new flat disc flywheel for a Bentley V engine.26th Apr 1939Box 99 \ 1  scan0094
Drawing for a special spigot bearing housing for the Bentley V flywheel.8th Jul 1939Box 99 \ 1  scan0095
Alteration instructions for the Bentley V. Clutch friction face, part number GB.4416.17th Jul 1939Box 99 \ 1  scan0096
Letter to Borg & Beck Co. Ltd. regarding difficulties with a new 10' Long Clutch.18th Aug 1939Box 99 \ 1  scan0097
Issues and agreed arrangements for the Bentley V Long 10' Clutch with supplier Borg & Beck.17th Aug 1939Box 99 \ 1  scan0098
Difficulties with balancing clutches due to flywheel hole inconsistencies and cover pressing distortion.17th Aug 1939Box 99 \ 1  scan0099
Requesting the thrust race to be changed on car 10-B-V.8th Apr 1940Box 99 \ 1  scan0100
Confirming the replacement of a failed clutch throwout bearing and modification of the trunnion housing.13th Apr 1940Box 99 \ 1  scan0101
Testing 10' clutch discs to diagnose and resolve transmission rattle issues.30th Jun 1941Box 99 \ 1  scan0102
Graph plotting the results of a torsional deflection test on a 10 inch clutch disc.27th Jun 1941Box 99 \ 1  scan0103
Note about a connecting rod bush without shims for a Wraith III and Bentley III.8th Feb 1938Box 99 \ 1  scan0104
Wraith III and Bentley III Connecting Rods.15th Sep 1937Box 99 \ 1  scan0105
Note regarding a Wraith III or Bentley III crankshaft with Packard type balance weights.18th Jan 1938Box 99 \ 1  scan0106
Standardisation of turned finish for Wraith III and Bentley III crankshafts following a 40hr endurance test.13th May 1938Box 99 \ 1  scan0107
Concerning the Spring Drive and Crankshaft Damper for Wraith III, B.III and B.50 models.4th Aug 1938Box 99 \ 1  scan0108
Specifications for the Bentley 111 cylinder head and valves.7th Oct 1937Box 99 \ 1  scan0109
Recommendations for the Bentley III cylinder head design and testing.11th Oct 1937Box 99 \ 1  scan0110
Order request for 6 experimental cylinder head gaskets made from Klingerit 1000 material for a Bentley III.11th Oct 1937Box 99 \ 1  scan0111
Parts list concerning a modified fan adjustment for a Bentley 111 Chassis.5th Apr 1938Box 99 \ 1  scan0112
Scheme to modify fan adjustment to align with the Wraith III for experimental purposes.5th Apr 1938Box 99 \ 1  scan0113
Modified fan adjustment for the Bentley III chassis, listing required and obsolete parts.6th Apr 1938Box 99 \ 1  scan0114
Instructions regarding modifications to the Bentley III Chassis Cylinder Head for increased push rod clearance.5th Jul 1938Box 99 \ 1  scan0115
Note regarding W.III & B.III cylinder blocks, referencing another file.1st Sep 1938Box 99 \ 1  scan0116
Requesting the inclusion of modified cylinder blocks for B.III & Wraith III units to assist the foundry and create an economy in production.9th Sep 1938Box 99 \ 1  scan0117
Modification memo regarding the cylinder head gasket for the B.III and Wraith cored cylinder block.15th Sep 1938Box 99 \ 1  scan0118
Request for a new drawing for a modified and strengthened Wraith & B.III cylinder head.8th Nov 1938Box 99 \ 1  scan0119
Supply of two blueprints for a Bentley 111 cylinder head.21th Nov 1938Box 99 \ 1  scan0120
Requesting the production of new Bentley V cylinder blocks and heads from alternative alloys due to cracking issues.1st Apr 1939Box 99 \ 1  scan0121
Proposed alteration to the cylinder head of the Wraith III and Bentley III models to improve valve seat cooling.11th May 1939Box 99 \ 1  scan0122
Advisability of introducing a raised engine mounting on the Bentley.18th Jun 1937Box 99 \ 1  scan0123
Detachable rear engine support brackets for the Bentley lll.7th Oct 1937Box 99 \ 1  scan0124
Query regarding engine dimensions for a Wraith engine fitted with Bentley carburettors and air silencer.25th Oct 1937Box 99 \ 1  scan0125
Sketch of the standard Bentley carburettors, air intake, and silencer arrangement with key dimensions.16th Nov 1937Box 99 \ 1  scan0126
Variance in mathematical calculations for the Bentley III engine mounting position.16th Nov 1937Box 99 \ 1  scan0127
High front engine mounting with an offset nose for the Bentley 111.3rd Dec 1937Box 99 \ 1  scan0128
Temporary scheme for a torque re-action damper for the Bentley 111 model.9th Dec 1937Box 99 \ 1  scan0129
Revised rear engine support brackets for the Bentley 111 to suit a modified chassis frame.17th Dec 1937Box 99 \ 1  scan0130
Engine rear suspension for the first Bentley 111 chassis, model 422.21th Dec 1937Box 99 \ 1  scan0131
Requesting the use of existing standard engine rubber mountings in new designs to save time and money.17th Mar 1938Box 99 \ 1  scan0132
Proposal for the Bentley 111 engine rear suspension, referencing drawing G.CD.543 and comparing it to the Wraith III.18th Mar 1938Box 99 \ 1  scan0133
Modifications to the Bentley 111 rear engine suspension to reduce gear change lever movement.29th Aug 1938Box 99 \ 1  scan0134
Recurring breakages of Bentley III engine mounting brackets and a request for inspection.31th Oct 1938Box 99 \ 1  scan0135


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