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
Outlining issues with Fafnir ball bearings received, detailing why they are unsuitable compared to company specifications.1st Aug 1920Box 20 \ 7  Scan100
Procurement of Hoffmann ball bearings from America and clarifying the number of bearings in a set.1st Aug 1920Box 20 \ 7  Scan101
Cover memo requesting remarks on an attached copy of a letter from America.5th Nov 1920Box 20 \ 7  Scan102
Letter to the Managing Director discussing replies from Derby regarding steering troubles and the quality and design of various ball bearings.16th Oct 1920Box 20 \ 7  Scan103
Page 2 of a letter to Mr. Claude Johnson regarding the price of ball bearings.16th Oct 1920Box 20 \ 7  Scan104
Extract regarding the use of Hess Bright standard steel cage bearings in all four road wheels.1st Jun 1921Box 20 \ 7  Scan105
Inter-office correspondence discussing the cost of special thrust bearings and recommending alternative standard bearings.27th Jun 1921Box 20 \ 7  Scan106
Use of 'Radax' type bearings for clutches and comparing bearing standards.20th Jul 1921Box 20 \ 7  Scan107
Covering memo for an attached letter from Springfield concerning Ball Bearings.20th Jul 1921Box 20 \ 7  Scan108
Letter discussing the issues and costs of using special inch-size ball bearings versus standard millimetre bearings.27th Jun 1921Box 20 \ 7  Scan109
Letter regarding inch size bearings and enclosing leaves from an S.A.E. handbook.23th Nov 1921Box 20 \ 7  Scan110
Policy on using metric versus inch-sized ball bearings for American production.23th Nov 1921Box 20 \ 7  Scan111
Future use of metric dimensions over English standard inch dimensions in design.23th Nov 1921Box 20 \ 7  Scan112
Letter from a supplier inquiring about a mailing list for an engineering catalog and its updates.25th Sep 1922Box 20 \ 7  Scan113
The successful testing of a New Departure No. 306 rear axle bevel pinion thrust bearing.13th Oct 1925Box 20 \ 7  Scan114
Tests of a 20 HP rear axle bevel pinion thrust.12th Jun 1925Box 20 \ 7  Scan115
Comparing wear and performance data for different thrust bearing designs.12th Jun 1925Box 20 \ 7  Scan116
Proposed modifications to the rear axle centre casing, including bearing changes and experimental lightening of the differential.12th Oct 1927Box 20 \ 7  Scan117
Erecting a hypoid axle with a 1' offset and the necessary adaptations for a New Departure bearing.14th Jan 1928Box 20 \ 7  Scan118
Proposal and alternative suggestions for a new bearing and oil retaining devices on a 1-inch offset hypoid rear axle.28th Feb 1928Box 20 \ 7  Scan119
Typed memo discussing the components and oil retaining properties of a 1' offset hypoid gear.5th Mar 1928Box 20 \ 7  Scan120
Preference for a 'New Departure' type bearing over a 'Schatz' bearing, with suggestions for fitting and oil retention.14th Feb 1928Box 20 \ 7  Scan121
Continuation page of a note discussing the specifics of bearings, oil retention, and water exclusion.23th Nov 1928Box 20 \ 7  Scan122
Request to order New Departure type thrust bearings for the 20 HP pinion.23th Nov 1928Box 20 \ 7  Scan123
List of spares supplied with the chassis for American production models.26th May 1921Box 20 \ 8  Scan001
Design modifications to a two-fold leather tool wallet, including replacing straps with handles.2nd Feb 1920Box 20 \ 8  Scan002
Update to the design of a leather tool wallet to accommodate an extra pair of pliers.19th Feb 1920Box 20 \ 8  Scan003
Contents of the leather tool wallet, specifically the number of pliers.23th Feb 1920Box 20 \ 8  Scan004
Comments and proposed solutions for issues with rear shock absorbers.31th May 1920Box 20 \ 8  Scan005
Proposal for a tool wallet from Messrs Peter Haworth & Sons.1st Jun 1920Box 20 \ 8  Scan006
Designing a special combined spanner for the rear shock absorber and thermostat controls.8th Jun 1920Box 20 \ 8  Scan007
Sheradising process as a permanent anti-rust finish for tool kit spanners.9th Jun 1920Box 20 \ 8  Scan008
Optional extras like leather spring gaiters, mascots, and tool wallets, suggesting material changes due to cost.29th Oct 1920Box 20 \ 8  Scan009
Suggesting improvements and modifications needed for the standard tool kit.29th Oct 1920Box 20 \ 8  Scan010
Screw pump for lubrication and a sketch of gas pliers.29th Oct 1920Box 20 \ 8  Scan011
Dimensions and fitting of a custom tool tray for Mr. Royce's car.22th Nov 1920Box 20 \ 8  Scan012
Supply of oxidised and nickel-plated Lucas Girder Spanners, including a special order for Mr. Royce.6th Jan 1921Box 20 \ 8  Scan013
Dispatch of two Lucas Girder Spanners and instructions for billing.6th Jan 1921Box 20 \ 8  Scan014
Stating the price for Lucas Girder Spanners is 3/5d each.14th Jan 1921Box 20 \ 8  Scan015
Potential improvements and cost-saving measures for the vehicle tool kit.24th Jan 1921Box 20 \ 8  Scan016
Extract from a meeting discussing the specifications for a 40/50 HP tool kit.31th Mar 1921Box 20 \ 8  Scan017
Suggestions for the chassis tool kit and spares.27th Apr 1921Box 20 \ 8  Scan018
The tools and spares provided in a vehicle tool kit, including the potential addition of a ratchet spanner.10th Dec 1936Box 20 \ 8  Scan019
Re-tooling of a tool kit for a 40/50 chassis.27th Jun 1921Box 20 \ 8  Scan020
The tool kit for the 40/50 chassis.21th Jun 1921Box 20 \ 8  Scan021
Query regarding the difficulty of stowing the tool kit for the 40-50 chassis and a proposal to reduce its contents for touring.10th Jun 1921Box 20 \ 8  Scan022
Poor machining on a steering box nut and an incomplete tool kit for car 6.EX.2nd Nov 1921Box 20 \ 8  Scan023
Contents and potential modifications of the tool kit for the 40/50 chassis.14th Nov 1921Box 20 \ 8  Scan024
Revisions to the tool kit for the 40/50 chassis, including spanner and extractor changes.18th Nov 1921Box 20 \ 8  Scan025
Modifications to a valve grinding tool for the 50 Chassis tool kit.22th Nov 1921Box 20 \ 8  Scan026
Modifications and updates to the tool kit for the 40/50 chassis.23th Nov 1921Box 20 \ 8  Scan027
List of suggestions for improvements and additions to the vehicle tool kit, focusing on spanners and specialized tools.23th Nov 1921Box 20 \ 8  Scan028
Standardising spanner designs and requesting metal models for Mr. Royce's inspection.21th Oct 1922Box 20 \ 8  Scan029
Poor quality of Terry spanners and the decision to manufacture future spanners as stampings.24th Oct 1922Box 20 \ 8  Scan030
Requesting the order of new detachable ball bearing spanners for experimental use and comparing them to the Lucas girder.15th Jan 1923Box 20 \ 8  Scan031
Mr. Royce's preference for a dull, fettled, and sheradised finish on spanners.26th Jan 1923Box 20 \ 8  Scan032
Proposal by Mr. Royce to revise the standard set of feeler blades for 40/50 and Goshawk chassis.13th Apr 1923Box 20 \ 8  Scan033
Urging the production of a sample set of spanners for Mr. Royce.24th May 1923Box 20 \ 8  Scan034
Checklist of tools to be always kept on a 40/50 HP car, with handwritten annotations.24th May 1923Box 20 \ 8  Scan035
List of tools for a 40/50 HP car, detailing items to be left at the garage and extra tools for touring.8th Jun 1923Box 20 \ 8  Scan036
Possibility of carrying fewer tools on 40/50 and 20 HP cars to reduce weight and save space.8th Jun 1923Box 20 \ 8  Scan037
The inspection of sample spanners, detailing incorrect thicknesses and requesting corrections.12th Jun 1923Box 20 \ 8  Scan038
Correcting errors in the dimensional comparison of sample spanners, providing a new table with jaw and handle thicknesses.14th Jun 1923Box 20 \ 8  Scan039
Technical memorandum discussing manufacturing variations and machining allowances for a spanner.14th Jun 1923Box 20 \ 8  Scan040
Continued memo detailing the modification of dies to reduce machining on spanner heads.14th Jun 1923Box 20 \ 8  Scan041
Reduction of bulky tools and equipment for the 40/50 and 20 HP models.16th Jun 1923Box 20 \ 8  Scan042
Continuation page discussing punctures, and a list of tools and equipment including a hydrometer, blanking plates, and a mallet.16th Jun 1923Box 20 \ 8  Scan043
List of standard and extra touring tools to be carried on a 40/50 HP vehicle.16th Jun 1923Box 20 \ 8  Scan044
List of standard and extra tools to be carried in a 20 HP car.19th Jun 1923Box 20 \ 8  Scan045
Discrepancies in the dimensions of sample spanners compared to their drawings, with suggestions for rectifying the production dies.19th Jun 1923Box 20 \ 8  Scan046
Letter from Mr. Olley to Mr. Hives discussing the contents and rationale for the chassis tool kit, including for cars exported to India.23th Jun 1923Box 20 \ 8  Scan047
List of tools with their approximate cost and the reasons for their omission from a standard kit.23th Jun 1923Box 20 \ 8  Scan048
List of spare parts with their approximate costs and reasons for omission from a standard kit.3rd Jul 1923Box 20 \ 8  Scan049
Appropriate lubrication tools and fittings for the 40/50 Hp. chassis tool kit.3rd Jul 1923Box 20 \ 8  Scan050
Customer complaint regarding the design of the 40/50 Chassis sparking plug box spanner, prompting a redesign request.29th Dec 1923Box 20 \ 8  Scan051
Design modification to the 40/50 HP chassis sparking plug box spanner to prevent it from jamming.8th Jan 1924Box 20 \ 8  Scan052
Recommending storage solutions for tools and spares on the 46-PK model and cars in general.9th Sep 1924Box 20 \ 8  Scan053
Primitive tool box design, a complaint from Mr. Royce, and a plan to create a standard, improved version.10th Sep 1924Box 20 \ 8  Scan054
The supply and storage of open spanners in new car models.16th Sep 1924Box 20 \ 8  Scan055
Design, manufacture, and inclusion of spanners in vehicle kits.6th Oct 1924Box 20 \ 8  Scan056
The material specification and testing of Tommy Bars.15th Dec 1924Box 20 \ 8  Scan057
Parts list for spanners and tools.21th May 1921Box 20 \ 8  Scan058
Parts list for various spanners and tools with material specifications and applications.22th Jun 1921Box 20 \ 8  Scan059
Follow-up letter to The Stromberg Carburetter Co. Ltd. regarding a request for two carburetters and information on a twin choke model.15th Aug 1935Box 20 \ 9  Scan001
Letter from Zenith Carburetter Co. Ltd. confirming a telephone conversation regarding a twin down-draft Stromberg carburetter.20th Aug 1935Box 20 \ 9  Scan002
Letter to The Zenith Carburetter Co. Ltd. requesting two chokes for a Stromberg DA-42 type carburetter.13th Sep 1935Box 20 \ 9  Scan003
Official order for a Stromberg carburetter and parts from The Zenith Carburetter Co. Ltd.16th Sep 1935Box 20 \ 9  Scan004
Letter to The Zenith Carburetter Co. Ltd. requesting the supply of a carburetter and spare parts.16th Sep 1935Box 20 \ 9  Scan005
Letter to The Zenith Carburetter Company regarding Stromberg carburetter positions and bench tests for the 20/25 model.17th Sep 1935Box 20 \ 9  Scan006
Letter from Zenith Carburetter Co. regarding Stromberg and Duplex carburetters and a proposed meeting.20th Sep 1935Box 20 \ 9  Scan007
The second page of a letter from The Zenith Carburetter Co. Limited.21th Sep 1935Box 20 \ 9  Scan008
Letter to The Zenith Carburetter Co. Ltd. suggesting a mid-week visit to the Derby works.21th Sep 1935Box 20 \ 9  Scan009
Letter to The Zenith Carburetter Co. Ltd. requesting Stromberg Carburetters and associated parts.21th Oct 1935Box 20 \ 9  Scan010
Letter to Zenith Carburetter Co. Ltd. arranging bench tests for a DA-42 carburetter.25th Oct 1935Box 20 \ 9  Scan011
Letter from Zenith Carburetter Co. Ltd. acknowledging an order for two DA.42 carburettors.22th Oct 1935Box 20 \ 9  Scan012
Letter from Zenith Carburetter Co. Ltd. arranging a meeting to discuss the manufacture of carburetters for a 12 cylinder engine.28th Oct 1935Box 20 \ 9  Scan013
Letter to Zenith Carburetter Co. Ltd. arranging a meeting in Derby with Mr. Turner.29th Oct 1935Box 20 \ 9  Scan014
Table of choke sizes and depression measurements for a Size 3 carburetter.29th Oct 1935Box 20 \ 9  Scan015
Requesting modifications to a duplex Stromberg carburetter for a Phantom III unit.5th Nov 1935Box 20 \ 9  Scan016
Payment for three outstanding invoices from Zenith Carburetter Co. Ltd.7th Nov 1935Box 20 \ 9  Scan017


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