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
Design note discussing variations to the frame and springs for the B.50 chassis.26th Jan 1938Box 112 \ 2  scan0096
Continued list of specifications for various vehicle components including wheels, axle, and exhaust.26th Jan 1938Box 112 \ 2  scan0097
Frame, transmission, and springs for the Bentley 50.27th Jan 1938Box 112 \ 2  scan0098
Parts and blueprint requirements for the 1st Bentley 50 frame.4th Apr 1938Box 112 \ 2  scan0099
Note regarding a blueprint for a dashboard mounting bracket to suit a Bentley 50 riveted frame.9th Apr 1938Box 112 \ 2  scan0100
Comparison of production and development costs for B.III and B.50 frames from various suppliers.11th Apr 1938Box 112 \ 2  scan0101
Request to box in the rear end of the frame for additional strength for jacking purposes.3rd May 1938Box 112 \ 2  scan0102
The principal chassis dimensions for the Bentley 50 frame.4th Jun 1938Box 112 \ 2  scan0103
Modifications required to increase the length of B.50 frames to accommodate a Straight Eight engine.29th Aug 1938Box 112 \ 2  scan0104
Requesting the attachment of steel plates to frame side members and the fitting of Woodhead springs to a chassis.7th Sep 1938Box 112 \ 2  scan0105
Frame shaking issues on the 1.B.50 model due to oscillation frequency and proposed alterations.20th Sep 1938Box 112 \ 2  scan0106
Requesting modifications to a car frame, including strengthening the front and adjusting the rear springs.27th Sep 1938Box 112 \ 2  scan0107
Weights of the B.50 and Silver Wraith frames.24th Oct 1938Box 112 \ 2  scan0108
The modification of step irons for the Bentley 50 frame.28th Oct 1938Box 112 \ 2  scan0109
With instructions for twisting and rebuilding a car frame.24th Nov 1938Box 112 \ 2  scan0110
Requesting an order for a B.50 frame with specific thickness details for the bump chassis.24th Nov 1938Box 112 \ 2  scan0111
Request to detail a longer rear bumper bracket for Bentley 50 chassis 2.B.50 due to a frame measurement discrepancy.5th Dec 1938Box 112 \ 2  scan0112
Letter to the Royal Automobile Club requesting breakdown statistics for belt drive systems.1st Nov 1937Box 112 \ 2  scan0113
Letter to the Institute of Automobile Engineers requesting statistics on the use of belt drives for water pumps and dynamos.2nd Nov 1937Box 112 \ 2  scan0114
Letter requesting statistics on the use of belt drives for water pumps and generators in British cars.2nd Nov 1937Box 112 \ 2  scan0115
Letter from The Royal Automobile Club regarding a lack of data on water pump failures due to broken belts.3rd Nov 1937Box 112 \ 2  scan0116
Letter from the Institution of Automobile Engineers responding to a request for information on cars using belt drives.3rd Nov 1937Box 112 \ 2  scan0117
Letter from the Society of Motor Manufacturers and Traders regarding an enquiry about belt drives for dynamos and water pumps.4th Nov 1937Box 112 \ 2  scan0118
Letter from The Royal Automobile Club regarding a request for data on dynamo drives.4th Nov 1937Box 112 \ 2  scan0119
Letter from The Royal Automobile Club discussing engineer feedback on belt drive performance and overheating issues.11th Nov 1937Box 112 \ 2  scan0120
Letter to the Secretary of The Royal Automobile Club thanking them for information provided.16th Nov 1937Box 112 \ 2  scan0121
Letter from The Society of Motor Manufacturers and Traders Limited providing statistics on belt drive vs. positive drive usage in cars.18th Nov 1937Box 112 \ 2  scan0122
Modified and cheaper fan mounting design for the Power Head Engine, superseding a previous version.19th May 1938Box 112 \ 2  scan0123
Notification of a new drawing for a modified fan mounting on the Bentley 50 Cast Iron Engine.13th Jun 1938Box 112 \ 2  scan0124
Request to manufacture a set of Wraith fan blades from specific material for testing on a Phantom III fan flange.9th Dec 1936Box 112 \ 2  scan0125
Oil fittings and relief valve for the Bentley 50 cast iron engine.13th Apr 1938Box 112 \ 2  scan0126
List of technical specifications for the Phoenix car, focusing on component interchangeability with other models.14th May 1937Box 112 \ 2  scan0127
Cost analysis for a Bentley car, proposing material substitutions to achieve an approximate 58% saving.6th Dec 1937Box 112 \ 2  scan0128
Cost analysis showing material savings and the price for Aluminizing or Nickel plating processes.9th Apr 1938Box 112 \ 2  scan0129
Alterations and instructions for the Bentley 50 exhaust system and tail pipe.9th Apr 1938Box 112 \ 2  scan0130
Modification to the exhaust fittings for the Bentley 50 chassis.17th May 1938Box 112 \ 2  scan0131
Necessary modification to the exhaust silencer support to prevent it fouling the heelboard of the rear seat.27th May 1938Box 112 \ 2  scan0132
Modifications to the Bentley 50 exhaust tail pipe to accommodate new shock dampers.11th Jun 1938Box 112 \ 2  scan0133
Requesting the fabrication and fitting of parts for a Bentley 50 exhaust system.4th Aug 1938Box 112 \ 2  scan0134
Request to try a modified exhaust system on a Bentley Car 1.B.50, deleting the rear silencer.8th Sep 1938Box 112 \ 2  scan0135
Request to build and fit a complete exhaust system to a Bentley 2.B.50.31th Oct 1938Box 112 \ 2  scan0136
Request to manufacture an experimental centre expansion box in mild steel for a Bentley 50 exhaust system.24th Nov 1938Box 112 \ 2  scan0137
Simplification of rear engine mounting for the B.50 car, referencing the Wraith and B.III frames.5th Oct 1938Box 112 \ 3  scan0001
Request for an urgent repair of a broken rear engine mounting cross member and gearbox during testing.13th Feb 1939Box 112 \ 3  scan0002
Estimated cost savings comparison for parts between the Bentley II and Bentley 50 models, without any design changes.6th Dec 1937Box 112 \ 3  scan0003
Confirming decisions on the placement and type of steering column controls for project B.50.8th Jan 1938Box 112 \ 3  scan0004
Elimination, retention, and addition of steering column controls for project B.50.8th Jan 1938Box 112 \ 3  scan0005
The testing procedure for Barker Colman taper splines on a Bentley 50.10th Feb 1938Box 112 \ 3  scan0006
Drawing of test pieces for comparing Barber Colman splines and plain taper with Woodruff keys.23th Mar 1938Box 112 \ 3  scan0007
Modifications to cross steering levers for the 1.B.50 car.23th Mar 1938Box 112 \ 3  scan0008
Request to issue cross steering levers for experiment on model 1.B.50.23th Mar 1938Box 112 \ 3  scan0009
Modification of cross steering levers for the 1.B.50 model.23th Mar 1938Box 112 \ 3  scan0010
Mounting for a steering box on the Bentley 50 steering column.7th Apr 1938Box 112 \ 3  scan0011
The proposed method for supporting the steering column on the body for the first Bentley 50.11th Apr 1938Box 112 \ 3  scan0012
Steering geometry issues and proposed solutions for B.III and B.50 chassis.24th May 1938Box 112 \ 3  scan0013
Scheme for a gastight seal for the steering column on a Bentley 50 dashboard.3rd Jun 1938Box 112 \ 3  scan0014
Internal memorandum requesting the detailing of temporary parts for an improved steering geometry.15th Jun 1938Box 112 \ 3  scan0015
Requesting an official order for 3 cams from Adamant Engineering Co. for use on a Bentley 50.22th Jun 1938Box 112 \ 3  scan0016
Letter to The Adamant Engineering Co. Ltd. requesting a trial batch of steering cams with a modified manufacturing process.22th Jun 1938Box 112 \ 3  scan0017
Steering geometry issues and wandering on B.III & B.50 models, recommending a hold on producing new steering levers until trials are complete.29th Jun 1938Box 112 \ 3  scan0018
New drawings and standard parts for an improved steering geometry on Bentley 111 and Bentley 50 models.1st Jul 1938Box 112 \ 3  scan0019
Technical memorandum detailing modifications to the B.50 steering and yoke piece dies for different caster angles.16th Sep 1938Box 112 \ 3  scan0020
Steering modifications for B.III and B.50 models, including fitting new ball joints and steering tubes.20th Sep 1938Box 112 \ 3  scan0021
Strengthened pivot for models B.111 and B.50, including changes to the yoke and stud centres.30th Sep 1938Box 112 \ 3  scan0022
Requesting a Bentley rocking shaft and steering roller follower for checking steering cams on a new machine.10th Oct 1938Box 112 \ 3  scan0023
The steering column for Bentley 50 and Wraith 80 models, specifically the F.CD.1007 rubber-mounted steering box.9th Nov 1938Box 112 \ 3  scan0024
Temporary change to the steering mounting for B.V., 50, & Silver Wraith chassis.16th Dec 1938Box 112 \ 3  scan0025
Adjustment of front wheel toe-in for the B.V., 50 & Silver Wraith chassis to reduce tyre wear.16th Dec 1938Box 112 \ 3  scan0026
Parts and blueprints for the B.V. B.50 and Silver Wraith steering column and box.31th Dec 1938Box 112 \ 3  scan0027
The dispatch of blueprints for Bentley V Chassis steering column parts.31th Jan 1939Box 112 \ 3  scan0028
Confirmation memo regarding the replacement of bakelite steering components with standard bronze parts.19th Apr 1939Box 112 \ 3  scan0029
Request to modify yokes for a B.50 steering system to test a new castor angle.21th Apr 1939Box 112 \ 3  scan0030
Request to produce a set of front axle yokes for a Bentley 50 Chassis, referencing a memo to provide a specific castor angle.22th Apr 1939Box 112 \ 3  scan0031
Modifications to B.V. & 50 steering for increased tyre clearance.4th May 1939Box 112 \ 3  scan0032
Instructions for the creation and modification of a B.50 petrol tank to fit R.R. type shock dampers.13th Jun 1938Box 112 \ 3  scan0033
Suggesting a modification to the petrol tank air vent pipe scheme to prevent leaks and save cost.11th Oct 1938Box 112 \ 3  scan0034
Instructions for fitting an AC mechanical petrol pump and keeping the existing pump as a standby.27th Mar 1939Box 112 \ 3  scan0035
Requesting the replacement of a petrol tank and the wiring of its K.S. petrol gauge.2nd Jun 1939Box 112 \ 3  scan0036
Investigation into the failure of the 'B' side of a 2.B.50 petrol pump.30th Dec 1940Box 112 \ 3  scan0037
Modifications to an 8-cylinder engine camshaft, advising a delay for new camforms.30th Sep 1938Box 112 \ 3  scan0038
Official order for silver finish steel sheets for a B.50 bonnet.16th Mar 1938Box 112 \ 3  scan0039
Design and materials for a bonnet with fixed side plates for model 1-B-50.9th Apr 1938Box 112 \ 3  scan0040
Instructions for fixing the bonnet side plate for the B.50 model, detailing the procedure for a Rover type bonnet.12th Apr 1938Box 112 \ 3  scan0041
Design memo detailing a scheme for the Bonnet Valance Strip for the B.50 model.13th Apr 1938Box 112 \ 3  scan0042
The dimensions, shape, and instructions for the B.50 bonnet layout.20th Apr 1938Box 112 \ 3  scan0043
Confirming production arrangements for the B.50 Rover Type Bonnet.11th May 1938Box 112 \ 3  scan0044
Issuance of new drawings for the Bentley 50, Bonnet Section 5260.20th May 1938Box 112 \ 3  scan0045
New blueprints for the Bentley 50 chassis bonnet.21th May 1938Box 112 \ 3  scan0046
Design, requirements, and interchangeability of bonnets for the B.50 and B.3 models.2nd Jun 1938Box 112 \ 3  scan0047
Provision and fitting of a non-standard bonnet rest strip.29th Jun 1938Box 112 \ 3  scan0048
Notes and considerations regarding the assembly of a detachable-sided steel bonnet.30th Jun 1938Box 112 \ 3  scan0049
Side strip components and a comparative analysis of bonnet weights.30th Jun 1938Box 112 \ 3  scan0050
Report comparing the orthodox and Rover type bonnets for B.III & B.50 car models.21th Sep 1938Box 112 \ 3  scan0051
Comparison of orthodox and Rover type bonnets regarding weight, cost, and user convenience.21th Sep 1938Box 112 \ 3  scan0052
Comparing various bonnet designs and proposing a revised scheme for the B.50 Rover type bonnet.21th Sep 1938Box 112 \ 3  scan0053
Design and cost of bonnet fasteners for B.III & B.50 type cars.7th Nov 1938Box 112 \ 3  scan0054
The procurement of bonnets for 8.B.V. & 2.B.50 cars.15th Nov 1938Box 112 \ 3  scan0055
Distributing blueprints for new bonnet side plate details for the Bentley V Chassis.18th Nov 1938Box 112 \ 3  scan0056
Inspection report with criticisms on a new bonnet design for B.V. and B.70 chassis.2nd Dec 1938Box 112 \ 3  scan0057
Bonnet design issues and proposed modifications for various car models.2nd Dec 1938Box 112 \ 3  scan0058


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