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 of a luggage grid and a rear apron for a car.14th Aug 1930Box 13 \ 6  06-page35
Revised design for a Type 4 luggage carrier and rear apron.1st Dec 1930Box 13 \ 6  06-page36
Design and fitting of a revised Type 4 luggage carrier and rear apron, noting an issue with the tail lamp position.31th Dec 1930Box 13 \ 6  06-page37
New dies and associated costs for a revised luggage carrier and rear apron on the Phantom II.2nd Jan 1931Box 13 \ 6  06-page38
Modifications to castings, production timelines, and the position of the rear lamp.5th Jan 1931Box 13 \ 6  06-page39
Revised Type 4 luggage grid and number plate placement.5th Jan 1931Box 13 \ 6  06-page40
Design and demand for the Phantom II revised type luggage carrier and rear apron.12th Jan 1931Box 13 \ 6  06-page41
Design of a revised luggage carrier for the Phantom II model, comparing it to American designs.19th Jan 1931Box 13 \ 6  06-page42
Design and market appeal of an American-style folding arm luggage carrier.22th Jan 1931Box 13 \ 6  06-page43
Advantages and disadvantages of a revised Phantom II luggage grid design.23th Jan 1931Box 13 \ 6  06-page44
Policy and technical challenges of supplying a rear apron for a revised Type 4 luggage grid.2nd Jun 1931Box 13 \ 6  06-page45
Standardisation of a rear apron and luggage grid for the Phantom II chassis, considering the placement of a spare wheel.10th Feb 1931Box 13 \ 6  06-page46
Follow-up communication regarding the delayed sample of a Phantom II rear apron and revised luggage grid.27th Feb 1931Box 13 \ 6  06-page47
Programme outlining the standards and future designs for wheel carriers and luggage grids on P.2 and 20/25 models.7th May 1931Box 13 \ 6  06-page48
Standards and recommendations for carrying spare wheels on various models.7th May 1931Box 13 \ 6  06-page49
The introduction of a new luggage grid and rear apron for the 40/50 HP model.16th May 1931Box 13 \ 6  06-page50
The completion of a car with a Phantom II luggage grid and a West Wittering design rear apron, to be sent for inspection.20th May 1931Box 13 \ 6  06-page51
P.II. luggage grid and a request for the car to be sent for inspection.28th May 1931Box 13 \ 6  06-page52
Arranging a car for testing at Brooklands in relation to a Phantom II luggage grid.30th May 1931Box 13 \ 6  06-page53
Seeking sales approval for the design of an improved luggage grid and rear apron.11th Jun 1931Box 13 \ 6  06-page54
Approval, design, and fitting of an improved luggage grid and rear apron for various car chassis.13th Jun 1931Box 13 \ 6  06-page55
Technical memorandum detailing criticisms and proposed modifications for a new type of luggage grid.17th Jun 1931Box 13 \ 6  06-page56
Critique of a new luggage grid, covering fitting, fixing method, and handle design.17th Jun 1931Box 13 \ 6  06-page57
Design details for a new Type 4 luggage grid, scheme 3032.23th Jun 1931Box 13 \ 6  06-page58
Recommendations and alterations for a new type of luggage grid.24th Jun 1931Box 13 \ 6  06-page59
Request to produce a set of prototype metal luggage grid handles for approval before manufacturing the final version in Bakelite.30th Jun 1931Box 13 \ 6  06-page60
Standardisation document for an improved luggage grid.16th Jun 1931Box 13 \ 6  06-page61
Preliminary scheme for luggage carriers on Phantom II and 20/25 models.22th Dec 1933Box 13 \ 6  06-page62
Arrangements for an improved luggage carrier for the Phantom II and 20/25 models.28th Dec 1933Box 13 \ 6  06-page63
From R. to Hs. about completing a Phantom car following a telephone message, with a note on clutch trouble.29th May 1926Box 13 \ 7  07-page001
Issues with an experimental 12-EX clutch, its design, and potential material solutions.31th May 1926Box 13 \ 7  07-page002
Potential modifications to the clutch to reduce its moment of inertia.10th Jun 1926Box 13 \ 7  07-page003
Proposal from Mr. Royce to use Kelmit metal bushes to prevent squeaking in the Phantom clutch lever fulcrums.1st Jul 1926Box 13 \ 7  07-page004
On a lightened flywheel and clutch fitted to vehicle 12 EX, detailing an experiment, fabric dimensions, and test results.26th Jun 1926Box 13 \ 7  07-page005
Investigation into vibration issues on the 12-EX model.1st Oct 1926Box 13 \ 7  07-page006
Testing a new serrated drive on the Phantom clutch coupling shaft.1st Oct 1926Box 13 \ 7  07-page007
Sending new schemes for a gearbox and clutch casing, detailing modifications.25th Nov 1927Box 13 \ 7  07-page008
Blueprint LeC.2520 for a Slipper Flywheel with a disc drive.6th Mar 1928Box 13 \ 7  07-page009
Standardisation of cotton duck washers for the slipping wheel in conjunction with lighter springs.30th Mar 1928Box 13 \ 7  07-page010
Questionnaire about fitting a new part to a chassis, including test dates and costs.16th May 1928Box 13 \ 7  07-page011
Modifications to the clutch thrust to make it oil retaining for the centralised chassis lubrication system.16th May 1928Box 13 \ 7  07-page012
Request to machine two flywheels as per an attached sketch to fit a 12-EX car for crankshaft testing.8th May 1928Box 13 \ 7  07-page013
The cause of unevenness in a starter gear due to a burr on the flywheel ring.22th May 1928Box 13 \ 7  07-page014
Centralised chassis lubrication for the front brake differential shaft, pedals, and clutch operating shaft.26th May 1928Box 13 \ 7  07-page015
Letter to Rolls Royce of America regarding the necessity of drilling holes in a clutch driving piece.3rd Jul 1928Box 13 \ 7  07-page016
Standardisation of chassis parts concerning the flywheel, light type clutch, serrated drive and larger clutch stop.24th Mar 1928Box 13 \ 7  07-page017
Chassis number, test date, and costs for fitting a new part.12th Nov 1928Box 13 \ 7  07-page018
Performance issue with a lightened clutch and flywheel, specifically a rusted ball race preventing proper disengagement.1st Oct 1928Box 13 \ 7  07-page019
Modifications for a lightened clutch, flywheel, and serrated universal joint.10th Oct 1928Box 13 \ 7  07-page020
Fitting a stainless steel plug to a lightened clutch and flywheel on car 12-EX before it goes to France.17th Oct 1928Box 13 \ 7  07-page021
Excessive oil in the 'SS' clutch with recommendations for modification.23th Nov 1928Box 13 \ 7  07-page022
Blueprint showing a cross-section of a mechanical assembly with an annotation for a modification.29th Nov 1928Box 13 \ 7  07-page023
Agreeing to the proposed increase in the height of a lip.29th Nov 1928Box 13 \ 7  07-page024
Progress report on a 10,000-mile test for the 'SS' model, concerning starter motor adjustments and a clutch fault investigation.21th Dec 1928Box 13 \ 7  07-page025
Suggestions for freeing the 'SS' clutch plates, deferring work until comments are received.29th Dec 1928Box 13 \ 7  07-page026
Clutch stop and control for the 'SS' Chassis, comparing it to other models.1st Jan 1929Box 13 \ 7  07-page027
Erratic behavior in 'SS' clutches due to lubrication difficulties.14th Jan 1929Box 13 \ 7  07-page028
Two proposals for improving the S.S. Clutch arrangement.17th Jan 1929Box 13 \ 7  07-page029
Design suggestions for the 'SS' clutch, focusing on bearing races and proportions.15th Feb 1929Box 13 \ 7  07-page030
Proposal for modification to a serrated universal joint and clutch shaft.19th Feb 1929Box 13 \ 7  07-page031
The improved slipper flywheel and spring drive.26th Jul 1929Box 13 \ 7  07-page032
Extract discussing the operation of the clutch brake on an S.S. Chassis.1st Aug 1929Box 13 \ 7  07-page033
Extract concerning modifications needed for the slipper flywheel clearance on an S.S. Chassis.8th Aug 1929Box 13 \ 7  07-page034
Failed modification to a 20 HP thrust bearing and the dispatch of a new nozzle.20th Aug 1929Box 13 \ 7  07-page035
Request for a report on the 20 HP gearbox freewheel and a discussion on potential clutch and flywheel design improvements.24th Aug 1929Box 13 \ 7  07-page036
The wear on trunnion shafts for the S.S. Clutch Control and its suitability for the new 20 HP car.27th Sep 1929Box 13 \ 7  07-page037
Modification to the Phantom II clutch, specifically the Ferodo riveting and damper plate adjustment.15th Oct 1929Box 13 \ 7  07-page038
Commencement of rust on Phantom II flywheel and clutch parts due to damp weather.26th Oct 1929Box 13 \ 7  07-page039
Modifications to the Phantom II clutch, including a proposal from Mr. Royce to use ferodo on the inner member.6th Nov 1929Box 13 \ 7  07-page040
New scheme for lubricating the Phantom II clutch spigot bearing.6th Nov 1929Box 13 \ 7  07-page041
Testing a modified clutch lubrication scheme for the Phantom II, which is now becoming standard.20th Nov 1929Box 13 \ 7  07-page042
Specifications for a spring behind a carrier plate on a 20-EX model.11th Mar 1930Box 13 \ 7  07-page043
Trial of two new damper springs for the Phantom II clutch.11th Mar 1930Box 13 \ 7  07-page044
Material selection for the Phantom II experimental clutch pressure plates.17th Mar 1930Box 13 \ 7  07-page045
Request to obtain three pairs of woven clutch discs and the return of a sample.21th Mar 1930Box 13 \ 7  07-page046
Alterations to the friction clutches for 45 HP & 25 HP cars, particularly for the American market.10th Jul 1930Box 13 \ 7  07-page047
Modifications to the Phantom II clutch in relation to a proposal to fit Ferodo discs.15th Jul 1930Box 13 \ 7  07-page048
Cracked cast iron clutch pressure plate from a Phantom II car.23th Jul 1930Box 13 \ 7  07-page049
Blueprint of a front C.I. pressure plate showing crack formations after failure.29th Jul 1930Box 13 \ 7  07-page050
Standardisation of chassis parts regarding the automatic oiling of the clutch spigot bearing from the gearbox.5th Jun 1930Box 13 \ 7  07-page051
Instruction regarding the clutch assembly for the first 50 N.2 series chassis.28th Aug 1930Box 13 \ 7  07-page052
40/50 clutch tests comparing the resistance to 'burning out' of different clutch linings under destructive conditions.30th Mar 1930Box 13 \ 7  07-page053
Continued memorandum discussing clutch troubles and spring inter-leaving materials, referencing American experiences.23th Aug 1930Box 13 \ 7  07-page054
Proposing a test on a Phantom clutch with new fabrics to investigate failures.23th Aug 1930Box 13 \ 7  07-page055
Destructive tests comparing the resistance to 'burning out' of a fabric-on-driven-plate clutch versus a standard clutch.30th Aug 1930Box 13 \ 7  07-page056
Spring inter-leaving material and the surprising performance of the standard clutch by American counterparts.31th Mar 1930Box 13 \ 7  07-page057
Modification to Phantom clutches involving an oil catcher to prevent lubricant from damaging the clutch fabric.1st Sep 1930Box 13 \ 7  07-page058
Further tests conducted on Standard Phantom Clutch fabrics.9th Sep 1930Box 13 \ 7  07-page059
Problems with the Phantom II left-hand chassis following a 10,000-mile endurance test.9th Sep 1930Box 13 \ 7  07-page060
Modifications for the clutch, carburetter, and brakes on experimental car models.10th Sep 1930Box 13 \ 7  07-page061
Phantom clutch failures and proposed improvements with new Ferodo material and extra rivets.10th Sep 1930Box 13 \ 7  07-page062
Ongoing clutch development issues, including problems with pressure plates, splines, and cross binding.11th Oct 1931Box 13 \ 7  07-page063
Phantom Clutch fabrics from supplier Ferodo, questioning why the company was not informed of improved materials.11th Sep 1930Box 13 \ 7  07-page064
The Phantom Clutch, questioning why supplier Ferodo did not inform the company of an improved clutch fabric.12th Sep 1930Box 13 \ 7  07-page065
Confirming verbal instructions for fitting clutches to car 23-EX and a test bed engine.15th Aug 1930Box 13 \ 7  07-page066
Comparison between two clutch types for the Phantom model, recommending to stay with the current design.15th Sep 1930Box 13 \ 7  07-page067
Clutch faults with a cast iron back plate and performance testing of a standard clutch.15th Sep 1930Box 13 \ 7  07-page068
Decision not to change the Phantom's clutch material and the need to clearly communicate this to the American company.16th Sep 1930Box 13 \ 7  07-page069
Cancellation of a standardisation sheet for Phantom Clutches based on test results.17th Sep 1930Box 13 \ 7  07-page070
Standardisation of chassis parts for the supporting stay to the clutch pedal shaft.6th Jun 1930Box 13 \ 7  07-page071


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