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).
Rolls-Royce Experimental Archives                
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DescriptionDateIdentifier
Confirmation of wire regarding the construction of an open body for chassis 23-EX by Carlton Carriage.20th Dec 1928Box 14 \ 8  Scan101
Problems with coachbuilder-supplied bodies for 'SS' chassis.27th Dec 1928Box 14 \ 8  Scan102
Letter addressing inaccuracies in subframes and the plan to correct them during the Christmas holiday.31th Dec 1928Box 14 \ 8  Scan103
Note confirming the delivery of a sub-frame for a 23-EX Open Tourer to the Carlton Carriage Company.31th Dec 1928Box 14 \ 8  Scan104
'SS' engine mounting, vibrations, and potential alternatives to the standard Phantom chassis.1st Apr 1929Box 14 \ 8  Scan105
'SS' and 20 HP engine mounting, frame flexibility, vibrations, and proposed rubber-based solutions.4th Jan 1929Box 14 \ 8  Scan106
Design of an engine mounting back plate and rubber supports.23th Jan 1929Box 14 \ 8  Scan107
Design and potential improvements for car and aero engine mountings.23th Jan 1929Box 14 \ 8  Scan108
Technical memorandum detailing the design and installation of the 'SS' engine mounting and rear engine feet.28th Jan 1929Box 14 \ 8  Scan109
Design details and sales viability for an SS chassis open touring body.1st Feb 1929Box 14 \ 8  Scan110
Design and challenges of an 'SS' engine mounting system, considering dampers, rubber, and frame stiffness.1st Feb 1929Box 14 \ 8  Scan111
Agreed modifications to subframes for SS and India bodies.5th Feb 1929Box 14 \ 8  Scan112
Gearbox removal by lifting the body, and the design of the front crossmember.14th Feb 1929Box 14 \ 8  Scan113
Recommendation for a detachable front subframe cross-member to facilitate gearbox removal.14th Feb 1929Box 14 \ 8  Scan114
Urgent requirements for a side wheel carrier and a detachable cross member.1st Mar 1929Box 14 \ 8  Scan115
Letter to Messrs. Barker & Co. Ltd. confirming the collection of a sub-frame for experimental chassis No. 24-EX.3rd Mar 1929Box 14 \ 8  Scan116
Investigation and proposed trial of tubular cross members to eliminate radiator 'shimmy' on an SS frame.11th Mar 1929Box 14 \ 8  Scan117
Delay in modifications for the 'SS' car for France and the feasibility of production.14th Mar 1929Box 14 \ 8  Scan118
Copy of a telegram instructing a change in frame design from a cross member to large tubes.14th Mar 1929Box 14 \ 8  Scan119
Chassis stiffness, periodicity, and testing methods for the 20 HP & SS Chassis.14th Mar 1929Box 14 \ 8  Scan120
Continued note on the performance characteristics of smaller road wheels.22th Mar 1929Box 14 \ 8  Scan121
Confirming instructions from a telegram regarding chassis modifications, spring stiffness, and connecting rods.22th Mar 1929Box 14 \ 8  Scan122
Use of tubular cross members to improve chassis stiffness and manage vibration.25th Mar 1929Box 14 \ 8  Scan123
With diagram detailing modifications to 'SS' short chassis frame side members.27th Mar 1929Box 14 \ 8  Scan124
Requesting the manual production of 4 sets of 'SS' tubular cross members due to a four-week delivery delay for parts for experimental cars.27th Mar 1929Box 14 \ 8  Scan125
Modified 20 HP car, chassis 14-G-4, detailing performance improvements and arranging a comparison test.28th Mar 1929Box 14 \ 8  Scan126
Modifications to an S.S. exhaust, its application to the 20 HP model, and arranging a performance test.4th Apr 1929Box 14 \ 8  Scan127
Alterations to the 'S.S' short chassis frame side members.4th Apr 1929Box 14 \ 8  Scan128
Proposed modifications to the 'SS' exhaust system and L.H. control.13th Apr 1929Box 14 \ 8  Scan129
Requesting the creation of urgent linen tracings from drawings for a publication on body subframes.22th Apr 1929Box 14 \ 8  Scan130
Chassis weight distribution for an 'SS' model car under different conditions.23th Apr 1929Box 14 \ 8  Scan131
The dispatch of blueprints and drawings for body/subframes to coachbuilders.29th Apr 1929Box 14 \ 8  Scan132
Difficulties and solutions for mounting subframes on S.S. bodies.1st May 1929Box 14 \ 8  Scan133
Overcoming difficulties experienced when mounting the first bodies.13th May 1929Box 14 \ 8  Scan134
Secret memo regarding the issuance of prints for SS cars to coachbuilders, detailing chassis and steering specifications.13th May 1929Box 14 \ 8  Scan135
Chassis modifications related to steerings, scuttle, dash, and subframe members, with instructions for coachbuilders.13th May 1929Box 14 \ 8  Scan136
Tracings, a dimensional change for secrecy, and coordination for S.S. bodies being built in Paris.29th May 1929Box 14 \ 8  Scan137
Erection instructions and sub-frame particulars for 'WJ' Series Chassis trial cars.29th May 1929Box 14 \ 8  Scan138
Modification of three subframes from left-hand to right-hand chassis specification.30th May 1929Box 14 \ 8  Scan139
Conversion, handling, and numbering of S.S. Subframes for various experimental chassis.30th May 1929Box 14 \ 8  Scan140
Preparation of name plates and interim stamping of S.S. Subframes.31th May 1929Box 14 \ 8  Scan141
The allocation and modification of S.S. sub-frames for experimental chassis models 24-EX, 25-EX, and 26-EX.3rd Jun 1929Box 14 \ 8  Scan142
Design and function of 'SS' engine feet for vibration isolation using compressed rubber.14th Jun 1929Box 14 \ 8  Scan143
Blueprint for a rubber engine feet distance piece.14th Jun 1929Box 14 \ 8  Scan144
The back of a document with a purple ink date stamp.14th Jun 1929Box 14 \ 8  Scan145
Engine suspension issues with rubber mounts and a note on reverting to fabric engine couplings.21th Jun 1929Box 14 \ 8  Scan146
The failures of fabric couplings and testing of alternative riveting methods to improve durability.21th Jun 1929Box 14 \ 8  Scan147
List of answers to questions about the weight, performance, and fitting of body subframes.21th Jun 1929Box 14 \ 8  Scan148
Page 4 of a report on vehicle construction, covering jigs, subframe mounting, sealing, and door adjustments.2nd May 1929Box 14 \ 8  Scan149
Agreed modifications to subframes for mounting SS and India bodies onto chassis.2nd May 1929Box 14 \ 8  Scan150
Difficulties of fitting coachbuilt S.S. bodies and proposing a chassis-like rig to ensure a proper fit.22th Apr 1929Box 14 \ 8  Scan151
Scheme to supply subframe brackets and templates to coachbuilders for correct fitting.29th Apr 1929Box 14 \ 8  Scan152
Subframe and chassis interchangeability for S.S. models and the relationship with coachbuilders.29th Apr 1929Box 14 \ 8  Scan153
Challenges of providing information to coachbuilders for new car bodies due to secrecy and experimental drawings.1st May 1929Box 14 \ 8  Scan154
Difficulties with mounting subframes for S.S. bodies and proposed solutions.1st May 1929Box 14 \ 8  Scan155
Blueprint of a mechanical component with handwritten annotations suggesting modifications.21th Jun 1929Box 14 \ 8  Scan156
Secret memo discussing subframe and chassis interchangeability for 'S.S.' bodies.28th Apr 1929Box 14 \ 8  Scan157
Process of providing information to coachbuilders for mounting vehicle bodies.29th Apr 1929Box 14 \ 8  Scan158
Letter from the American branch asking a series of questions about the design and effects of a body subframe.10th Jun 1929Box 14 \ 8  Scan159
The second page of a letter from Maurice Olley posing questions about subframe design and implementation.1st Jul 1929Box 14 \ 8  Scan160
On improvements to 'SS' cars, remaining issues with noise and fumes, and proposed comparative tests against a Phantom.1st Jul 1929Box 14 \ 8  Scan161
Wheel arch clearance issues and testing for the 'WJ' series.9th Mar 1929Box 14 \ 8  Scan162
Instructions for modifying wheel arches on bodies under construction and future testing proposals.1st Sep 1929Box 14 \ 8  Scan163
Troubles and investigations into rear wheel arch clearance, comparing the W.J. series and Phantom chassis.5th Sep 1929Box 14 \ 8  Scan164
Vehicle roll testing, spring deflection, and wheel arch clearance for the Phantom and other models.5th Sep 1929Box 14 \ 8  Scan165
Insufficient rear axle clearance on the Phantom II chassis due to sub-frame fixing issues.26th Sep 1929Box 14 \ 8  Scan166
Fouling issues with the rear wheel arch clearances on the Phantom II model.2nd Oct 1929Box 14 \ 8  Scan167
Wheel arch clearance issues and fouling on experimental Phantom II cars.1st Oct 1929Box 14 \ 8  Scan168
Increasing clearance by modifying the off-side rear wheel arch on chassis 20-EX.1st Oct 1929Box 14 \ 8  Scan169
Wheel arch clearance tests and solutions for brake and tyre fouling issues.1st Oct 1929Box 14 \ 8  Scan170
Recommendations for modifying subframes, brake shoe fulcrum pins and nuts, and a report on a rear spring clip fouling issue.1st Oct 1929Box 14 \ 8  Scan171
Diagram illustrating a Phantom II subframe modification to increase wheel arch clearance.1st Oct 1929Box 14 \ 8  Scan172
Diagram showing a modification to a Phantom II subframe to increase wheel arch clearance.26th Oct 1929Box 14 \ 8  Scan173
Wheel arch clearances, specifically in relation to rear seat accommodation and tyre rubbing.26th Oct 1929Box 14 \ 8  Scan174
Concerns with Coachbuilder modifications to Phantom II subframes for brake drum clearance.5th Dec 1929Box 14 \ 8  Scan175
Revised subframe design for the Phantom II, incorporating a new steering system and other modifications.7th Dec 1929Box 14 \ 8  Scan176
Phantom II subframes, attaching a copy of a report received from a tester.10th Dec 1929Box 14 \ 8  Scan177
Required modifications to the sub-frame for clearance to rear brake drums on chassis 49-WJ.10th Dec 1929Box 14 \ 8  Scan178
Various issues and recommendations regarding the Phantom II subframe.10th Dec 1929Box 14 \ 8  Scan179
Modifications to the frame and a universal subframe for various coachbuilders.14th Nov 1929Box 14 \ 8  Scan180
Decision to not alter Phantom II subframes until further notice from the Experimental Department.12th Dec 1929Box 14 \ 8  Scan181
Brake drum clearances for the Phantom II subframe and referencing a report by Mr. Goose.13th Dec 1929Box 14 \ 8  Scan182
Issues and modifications related to the Phantom II subframes.13th Dec 1929Box 14 \ 8  Scan183
Subframe clearance issues and required alterations for the Phantom II model.14th Dec 1929Box 14 \ 8  Scan184
Procedure detailing the method for testing subframe clearances.17th Dec 1929Box 14 \ 8  Scan185
Discrepancy in wheel arch clearances between experimental and production Phantom II subframes and proposing modifications.17th Dec 1929Box 14 \ 8  Scan186
Subframe modifications to prevent fouling with the wheel arch and procedures for centralisation.17th Dec 1929Box 14 \ 8  Scan187
Recommendation to use hard or insertion rubber as packing in place of the current aluminium discs for body adjustment.17th Dec 1929Box 14 \ 8  Scan188
Tests for stiffening the Phantom II frame to solve an issue described as 'radiator jellying'.18th Dec 1929Box 14 \ 8  Scan189
The testing and modification of rear wheel arch clearances on the Phantom II chassis.20th Dec 1929Box 14 \ 8  Scan190
The urgent distribution of prints for a wheel arch clearance modification to avoid a 'further catastrophe'.20th Dec 1929Box 14 \ 8  Scan191
Modifications to the Phantom IIa rear wheelarch and subframe for larger tyres and improved clearances.21th Dec 1929Box 14 \ 8  Scan192
Suggesting a note regarding the use of chains, a modification to the rear subframe support, and referencing issues with the Phantom II chassis.21th Dec 1929Box 14 \ 8  Scan193
Instructions and quality issues regarding Phantom II subframes.31th Dec 1929Box 14 \ 8  Scan194
Modifications to the Phantom II rear wheel arch clearance and subframes.23th Dec 1929Box 14 \ 8  Scan195
Proposed alterations for the rear wheel arch clearance on the Phantom II model.31th Dec 1929Box 14 \ 8  Scan196
The impossibility of removing the gearbox lid on Phantom II cars with close-coupled bodies.31th Dec 1929Box 14 \ 8  Scan197
Non-standard subframe on Phantom II chassis WJ-1.1st Jan 1930Box 14 \ 8  Scan198
Disadvantages of fitting larger section 'India' tyres over the standard Dunlop tyres.1st Jan 1930Box 14 \ 8  Scan199
Tyre specifications, discouraging larger sections and standardising on Fort tyres for 20' rims.2nd Jan 1930Box 14 \ 8  Scan200


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