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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Copy of a letter from Long Manufacturing to Borg & Beck detailing an investigation into a complaint about clutch components.6th Mar 1941Box 130 \ 3  scan0196
Analysis of clutch performance, discussing deflection tests, design modifications, and a review of performance graphs.6th Mar 1941Box 130 \ 3  scan0197
Letter from Borg-Warner Corporation discussing clutch cushioning, anti-squeak plates, and manufacturing.6th Mar 1941Box 130 \ 3  scan0198
Checks on a 10CF coverplate assembly, focusing on deflection from spring load and centrifugal force.6th Mar 1941Box 130 \ 3  scan0199
List of checks and measurements for spinner and lever components, with a comparison to Cadillac design.3rd Mar 1937Box 130 \ 3  scan0200
Data sheet with a table and graph illustrating the centrifugal force curve on a production release lever.3rd Mar 1937Box 130 \ 3  scan0201
Technical drawing of a clutch coverplate assembly, showing the pressure plate and release lever unit.1st Feb 1941Box 130 \ 3  scan0202
Visit to Borg & Beck discussing clutch cover plate deflection tests and correspondence with the Long Manufacturing Co.24th May 1941Box 130 \ 3  scan0203
Report discussing clutch assembly designs and specifications with suppliers Long Company and Borg & Beck.24th May 1941Box 130 \ 3  scan0204
Clutch design and performance following a visit to Borg & Beck.25th May 1941Box 130 \ 3  scan0205
Clarifying requirements for Order No. A.36320 for a 7 1/4' Borg & Beck Clutch.28th May 1941Box 130 \ 3  scan0206
Letter to Messrs. Borg & Beck Ltd. requesting the supply of sample clutch components.29th May 1941Box 130 \ 3  scan0207
Requesting the return of three 7 1/2' Borg & Beck clutch discs for exchange.13th Jun 1941Box 130 \ 3  scan0208
Letter to Borg & Beck, Ltd. regarding the exchange of three 7 1/4' clutch discs for 'Borglite' discs.13th Jun 1941Box 130 \ 3  scan0209
Clutch friction, transmission rattles in 4-cylinder engines, and the 'Myth' project.30th Jun 1944Box 130 \ 3  scan0210
Investigation into transmission rattle caused by 10' clutch discs and proposed solutions.30th Jun 1941Box 130 \ 3  scan0211
Graph showing the results of a torsional deflection test on a 10-inch clutch disc.27th Jun 1941Box 130 \ 3  scan0212
Record of a drawing for the Borg & Beck 9' C.F. Long Type Clutch for the Junior Range.10th Jul 1941Box 130 \ 3  scan0213
Dispatch request to send a car flywheel to Messrs. Borg & Beck Co. Ltd. for balancing and setting a clutch.26th Jul 1941Box 130 \ 3  scan0214
Letter to Messrs. Borg & Beck Co. Ltd. confirming a flywheel is being sent for balancing a 10' C.F. clutch assembly.26th Jul 1941Box 130 \ 3  scan0215
Letter from Borg & Beck Company Ltd. regarding the forwarding of a flywheel to balance a Special 10.C.F. Clutch assembly.31th Jul 1941Box 130 \ 3  scan0216
Letter from Borg & Beck regarding difficulty obtaining clutch facings from America and requesting a flywheel be redrilled.13th Oct 1941Box 130 \ 3  scan0217
Quarterly complaints report regarding Bentley vehicles, focusing on brake issues and poor slow running.8th Jun 1936Box 130 \ 4  scan0001
Various vehicle faults and assigning responsibility for investigation.8th Jun 1936Box 130 \ 4  scan0002
Rattles from shock absorber connections and concerns about defective sparking plugs.8th Jun 1936Box 130 \ 4  scan0003
Listing prevalent complaints for Bentley vehicles for the quarter ending June 30th, 1936.6th Jul 1937Box 130 \ 4  scan0004
List of Bentley quarterly complaints, modifications, and repetition complaints from June 1936.7th Jul 1936Box 130 \ 4  scan0005
Performance issues with headlamp cross-members and Wilmot Breedon bumpers.7th Jul 1936Box 130 \ 4  scan0006
Index sheet for a report on Bentley quarterly complaints, listing subjects and corresponding page numbers.6th Jul 1936Box 130 \ 4  scan0007
Requesting the return of the Bentley Quarterly Complaints list for the quarter ending June 30th, 1936.18th Jul 1936Box 130 \ 4  scan0008
Cover letter for the quarterly complaints report regarding the 20/25 HP and Phantom II models.28th Jul 1936Box 130 \ 4  scan0009
Title page for the 'Brakes & Servo' section.30th Jun 1936Box 130 \ 4  scan0010
Summary of brake complaints for the 20/25 HP and Phantom II models for the six months ending June 1936.30th Jun 1936Box 130 \ 4  scan0011
Log of brake faults and subsequent repairs on various chassis, with statistical summaries.30th Jun 1936Box 130 \ 4  scan0012
Summary report of vehicle faults and repairs related to brakes and servos, organized by fault type.30th Jun 1936Box 130 \ 4  scan0013
Report listing faults, statistics, and repairs for 'Servo inefficient' and 'Servo thumps' on Phantom II chassis.30th Jun 1936Box 130 \ 4  scan0014
Title page for the 'Clutch' section of a report.30th Jun 1936Box 130 \ 4  scan0015
Summary report on total clutch complaints and clutch slips over quarterly and six-month periods.30th Jun 1936Box 130 \ 4  scan0016
Title page for the 'Engine' section.30th Jun 1936Box 130 \ 4  scan0017
Summary of engine faults and corrective actions for various chassis types over a six-month period.30th Jun 1936Box 130 \ 4  scan0018
Carburettor faults and rectifications on 20/25 HP and Phantom II chassis.30th Jun 1936Box 130 \ 4  scan0019
Engine faults, diagnoses, and resolutions for various chassis.30th Jun 1936Box 130 \ 4  scan0020
Quarterly report detailing faults and repairs for bonnet rattles, radiator leaks, water leakage, and defective thermostats.30th Jun 1936Box 130 \ 4  scan0021
Quarterly report detailing vehicle failures and corresponding repair actions.30th Jun 1936Box 130 \ 4  scan0022
Resolving noise from a flexible engine suspension by cleaning and refitting silent blocks on a 20/25 HP Chassis.30th Jun 1936Box 130 \ 4  scan0023
Title page for the 'Exhaust System' section.30th Jun 1936Box 130 \ 4  scan0024
Quarterly report summarizing vehicle exhaust system complaints and associated repairs.30th Jun 1936Box 130 \ 4  scan0025
Faults and repairs on vehicle exhaust systems over quarterly and six-month periods.30th Jun 1936Box 130 \ 4  scan0026
Cover page for a document section titled 'STEERING'.30th Jun 1936Box 130 \ 4  scan0027
Steering system faults and rectifications for 20/25 HP chassis.30th Jun 1936Box 130 \ 4  scan0028
Faults and fixes for steering knock and rattle on 20/25 HP and Phantom II chassis.30th Jun 1936Box 130 \ 4  scan0029
Title page for the section on Front Axle and Front Axle Controls.30th Jun 1936Box 130 \ 4  scan0030
Customer complaints and repairs for noisy and slack front axle controls.30th Jun 1936Box 130 \ 4  scan0031
Title page for the section on the Gearbox and Propeller Shaft.30th Jun 1936Box 130 \ 4  scan0032
Reports on resolutions for a gearbox synchromesh rattle and a hand brake/change speed lever rattle on 20/25 HP chassis.30th Jun 1936Box 130 \ 4  scan0033
Title page for the 'Rear Axle' section.30th Jun 1936Box 130 \ 4  scan0034
Faults found with rear axles, drivers, and thrust bearings on various chassis.30th Jun 1936Box 130 \ 4  scan0035
Title page for a document section on springing.30th Jun 1936Box 130 \ 4  scan0036
Faults and modifications related to vehicle spring systems.30th Jun 1936Box 130 \ 4  scan0037
Customer complaints and subsequent modifications to the suspension on two 20/25 HP chassis.30th Jun 1936Box 130 \ 4  scan0038
Title page for a document about hydraulic dampers and ride control.30th Jun 1936Box 130 \ 4  scan0039
Summary of hydraulic system complaints and their resolutions for various chassis models.30th Jun 1936Box 130 \ 4  scan0040
Faults and repairs for hydraulic dampers on Phantom II and 20/25 HP chassis.30th Jun 1936Box 130 \ 4  scan0041
Title page for a section on Electrical Installation and Accessories.30th Jun 1936Box 130 \ 4  scan0042
Dynamo, electric clock, and electric petrol gauge complaints for various chassis models.30th Jun 1936Box 130 \ 4  scan0043
Title page for a section on various accessories.30th Jun 1936Box 130 \ 4  scan0044
Speedometer and thermometer failures on 20/25 HP and Phantom II chassis.24th Jul 1936Box 130 \ 4  scan0045
Instances of slackness in the pedal mechanism over different time periods.24th Jul 1936Box 130 \ 4  scan0046
Quarterly report on complaints for the 20/25 HP and Phantom II chassis for the quarter ending June 1936.19th Aug 1936Box 130 \ 4  scan0047
Quarterly report from June 1936 detailing customer complaints about vehicle brakes.30th Jun 1936Box 130 \ 4  scan0048
Statistical report on various brake failures over a six-month period.30th Jun 1936Box 130 \ 4  scan0049
Quarterly statistical report on customer complaints for brakes, servos, and clutches across different vehicle models.30th Jun 1936Box 130 \ 4  scan0050
Quarterly report detailing statistics for vehicle complaints such as clutch slips, dynamo issues, and exhaust problems.30th Jun 1936Box 130 \ 4  scan0051
Faults and complaints related to exhaust systems, engine timing gears, and valves.30th Jun 1936Box 130 \ 4  scan0052
Summary of hydraulic complaints for 25 HP and Phantom II models over two quarters.30th Jun 1936Box 130 \ 4  scan0053
Tabulated analysis of vehicle faults, their frequency, and remedies over a six-month period for different car models.30th Jun 1936Box 130 \ 4  scan0054
Quarterly report summarizing vehicle faults and their respective remedies.30th Jun 1936Box 130 \ 4  scan0055
Summary report of vehicle failures by model type for the June quarter and the previous quarter.30th Jun 1936Box 130 \ 4  scan0056
Statistical report on vehicle failures over two quarters, broken down by model and fault type.30th Jun 1936Box 130 \ 4  scan0057
Quarterly statistical report on vehicle faults, categorised by model and time period, with remarks on causes and fixes.27th Aug 1936Box 130 \ 4  scan0058
Quarterly complaints for the 3 1/2 Litre Bentley Chassis, explaining the classification of issues for the quarter ending June 1936.27th Aug 1936Box 130 \ 4  scan0059
Quarterly report from June 1936 detailing customer complaints about brakes.30th Jun 1936Box 130 \ 4  scan0060
Summary report of vehicle faults and customer complaints over two quarters.30th Jun 1936Box 130 \ 4  scan0061
Summary report on brake issues, including binding and squeaking, with counts and remarks for different time periods.30th Jun 1936Box 130 \ 4  scan0062
Quarterly report summarizing common vehicle faults, their frequency, and associated remedies.30th Jun 1936Box 130 \ 4  scan0063
Customer complaints and service issues for various vehicle components over six months.30th Jun 1936Box 130 \ 4  scan0064
Statistical report on vehicle faults over a six-month period, with remarks and handwritten notes.30th Jun 1936Box 130 \ 4  scan0065
Quarterly report summarizing vehicle faults and adjustments for springing, tappets, rear axle gears, and oil leaks.30th Jun 1936Box 130 \ 4  scan0066
Quarterly report summarizing vehicle defects related to rattles, speedometers, and headlamps, with remarks on causes and actions.30th Jun 1936Box 130 \ 4  scan0067
Quarterly report on engine and electrical system faults with comparative statistics and remarks.30th Jun 1936Box 130 \ 4  scan0068
Summary of vehicle faults and complaints including steering, pinking, and oil consumption over a six-month period.30th Jun 1936Box 130 \ 4  scan0069
Summary report of vehicle faults and failures categorised over quarterly, three-month, and six-month periods.23th Oct 1936Box 130 \ 4  scan0070
Quarterly report on customer complaints for 3 1/2 and 4 1/4 litre Bentley chassis.23th Oct 1936Box 130 \ 4  scan0071
Quarterly report analyzing customer and company policy complaints about vehicle brakes for the September 1936 quarter.30th Sep 1936Box 130 \ 4  scan0072
Quarterly report summarizing various brake-related faults with numerical data and remarks.30th Sep 1936Box 130 \ 4  scan0073
Statistical report on brake squeaks and clutch issues over a six-month period.30th Sep 1936Box 130 \ 4  scan0074
Quarterly report detailing vehicle faults, their frequency, and remarks on corrective actions.30th Sep 1936Box 130 \ 4  scan0075
Summary report of component faults for radiator shutters, petrol gauges, petrol pumps, and H.T. leads.30th Sep 1936Box 130 \ 4  scan0076
Quarterly report page detailing vehicle faults, their frequencies, and remedial actions.30th Sep 1936Box 130 \ 4  scan0077
Statistical report on vehicle faults, their frequency over quarterly periods, and remarks on their causes.30th Sep 1936Box 130 \ 4  scan0078


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