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
SPONTAN automatic one-pedal gearless control system.21th Sep 1931Box 41 \ 4  Scan032
Booklet for the Spontan automatic one-pedal gearless control system for motor cars.21th Sep 1931Box 41 \ 4  Scan033
Booklet for the Spontan automatic one-pedal gearless control system for motor cars.21th Sep 1931Box 41 \ 4  Scan034
Photograph of the Spontan transmission and brake fitted to an Essex Super Six engine.21th Sep 1931Box 41 \ 4  Scan035
The Spontan automatic one-pedal gearless control system for motor cars.21th Sep 1931Box 41 \ 4  Scan036
Booklet describing the operation and benefits of the 'Spontan' single-pedal automatic gear system.21th Sep 1931Box 41 \ 4  Scan037
Description of the principal parts and function of the Spontan transmission system, including a diagram.21th Sep 1931Box 41 \ 4  Scan038
Technical description of the Spontan roller clutch mechanism and its operation.21th Sep 1931Box 41 \ 4  Scan039
Technical description and theoretical considerations of the 'Spontan' transmission system.21th Sep 1931Box 41 \ 4  Scan040
Explanation with diagrams of torque impulses and the smoothening action of flywheels and pendulum wheels.21th Sep 1931Box 41 \ 4  Scan041
Technical description and analysis of the 'Spontan' transmission system, detailing its operation and performance characteristics with graphs.21th Sep 1931Box 41 \ 4  Scan042
Detailed description and explanation of the Spontan transmission system, including a diagram.21th Sep 1931Box 41 \ 4  Scan043
Description of a damping flywheel assembly and its components, illustrated with diagrams and a photograph of the vehicle interior.21th Sep 1931Box 41 \ 4  Scan044
Pages from a manual describing the 'Spontan' transmission system's components and operation.21th Sep 1931Box 41 \ 4  Scan045
Explanation of the reversing sleeves, clutch rollers, and braking mechanism with associated diagrams.21th Sep 1931Box 41 \ 4  Scan046
Two-page description of the operation and features of the Spontan Braking System.21th Sep 1931Box 41 \ 4  Scan047
Description of the Spontan braking system and independent hand brake, with accompanying diagrams.21th Sep 1931Box 41 \ 4  Scan048
Detailed description of the Spontan braking system, its operation, cooling, and interaction with other components.21th Sep 1931Box 41 \ 4  Scan049
The operation, advantages, and development of the 'Spontan' braking system and transmission.21th Sep 1931Box 41 \ 4  Scan050
Printer's mark on the cover or end page of a document, printed in Stockholm.21th Sep 1931Box 41 \ 4  Scan051
Request for comments on a proposed modification to valve covers, including a hand-drawn sketch.27th Sep 1919Box 41 \ 4  Scan052
Technical memo concerning parts and modifications for the American Model, specifically related to pipes and silencers.27th Sep 1919Box 41 \ 4  Scan053
Policy for manufacturing right and left hand chassis for the American market.31th Oct 1919Box 41 \ 4  Scan054
Decision by Mr. Royce to eliminate the use of specific steel castings on the chassis.22th May 1920Box 41 \ 4  Scan055
The Swan Inlet Manifold, attaching a copy of a letter and an S.A.E. Journal extract.11th Mar 1924Box 41 \ 4  Scan056
Letter discussing the Swan Inlet Manifold, suggesting experiments based on its success in Buick cars.26th Feb 1924Box 41 \ 4  Scan057
Modifications to the exhaust system silencer for American cars.16th Sep 1925Box 41 \ 4  Scan058
Steering issues on Springfield chassis models, particularly related to low-pressure tyres and steering gear modifications.8th Aug 1927Box 41 \ 4  Scan059
Technical report on brake mechanism clanking and exhaust banging issues.8th Aug 1927Box 41 \ 4  Scan060
Continued document discussing the benefits of an engine governor and throttle system.9th Aug 1929Box 41 \ 4  Scan061
Letter from Rolls Royce of America detailing a design simplification for a silencer to reduce rattles and production cost.9th Aug 1929Box 41 \ 4  Scan062
Design considerations for post-war chassis, including hydraulic dampers, tyre sizes, and bodywork.3rd Oct 1916Box 41 \ 4  Scan063
Proposal to purchase two second-hand car bodies for 'After the War' chassis.11th Oct 1916Box 41 \ 4  Scan064
Whether to use new or second-hand bodies for the experimental 'After the War' chassis.12th Oct 1916Box 41 \ 4  Scan065
Letter regarding the search for a suitable car body for an 'After the War Chassis'.26th Oct 1916Box 41 \ 4  Scan066
Requesting a photograph or drawing of a Barker small four-seater body for an experimental chassis, to be sent to Mr. Royce for approval.28th Oct 1916Box 41 \ 4  Scan067
Enclosing a drawing of a torpedo body for an experimental chassis.8th Nov 1916Box 41 \ 4  Scan068
Blueprint of a two-seater open-top car with dimensional details.7th Jan 1918Box 41 \ 4  Scan069
Listing extra specifications and prices for a car body from Holmes Bros. Ltd.7th Jan 1918Box 41 \ 4  Scan070
Letter from Holmes Brothers Ltd. regarding the cost and delivery of an open touring body.9th Dec 1918Box 41 \ 4  Scan071
Limousine body for an experimental chassis, forwarding a letter from coachbuilder Barkers.25th Jan 1919Box 41 \ 4  Scan072
Letter from coachbuilder Barker & Co. Ltd. offering alternative limousine bodies for an experimental chassis.9th Jan 1919Box 41 \ 4  Scan073
Bodies for experimental cars, arranging an inspection for one and suggesting the search for another.20th Oct 1919Box 41 \ 4  Scan074
Letter from coachbuilders Barker & Co. offering four second-hand bodies for sale.21th Nov 1919Box 41 \ 4  Scan075
Letter to Barker & Co. Ltd. requesting a price for an Angus-Sanderson Torpedo 5-seater car body.22th Nov 1919Box 41 \ 4  Scan076
Letter from coachbuilder Barker & Co. quoting a price for an Angus Sanderson Body.24th Nov 1919Box 41 \ 4  Scan077
Letter from coachbuilders Barker & Co. regarding the purchase of a secondhand Torpedo Body.9th Dec 1919Box 41 \ 4  Scan078
Modifications and pricing for fitting an Angus Sanderson body with a new scuttle.2nd Dec 1919Box 41 \ 4  Scan079
Proposed alterations for American cars, focusing on luggage carriers and rear spring shackles.2nd Dec 1919Box 41 \ 4  Scan080
The body design for an experimental car, comparing long and short chassis options and considering coachbuilders.5th Dec 1919Box 41 \ 4  Scan081
Letter to Barkers (Coachbuilders) arranging the collection of a purchased Angus-Sanderson Body.30th Dec 1919Box 41 \ 4  Scan082
Letter from coachbuilders Barker & Co. regarding the collection and temporary fitting of an Angus Sanderson body to a chassis.2nd Jan 1920Box 41 \ 4  Scan083
Letter from coachbuilder Barker & Co. confirming the temporary fitting of an Angus Sanderson (Torpedo) body to a chassis.8th Jan 1920Box 41 \ 4  Scan084
Requesting a sketch of the dashboard dimensions for the 10,000-miles car to avoid delays with the coachbuilder.14th Jan 1920Box 41 \ 4  Scan085
The testing of cars with covered bodies and plans for building new experimental chassis.1st Feb 1920Box 41 \ 4  Scan086
Testing of car bodies like the Cabriolet and novelties required for American manufacture.26th Apr 1917Box 41 \ 4  Scan087
Establishing a new rule for testing cars with landaulet bodies and a full load of luggage and passengers.9th Feb 1920Box 41 \ 4  Scan088
Requesting the number of extra landaulet bodies required for testing chassis before standardisation.23th Feb 1920Box 41 \ 4  Scan089
From CJ to EH regarding the requirement for testing chassis on fully loaded landaulet bodies.23th Feb 1920Box 41 \ 4  Scan090
Instructions for testing and sourcing a suitable Landaulet Body.25th Feb 1920Box 41 \ 4  Scan091
Telephone message transcript regarding the potential purchase of a Landaulet Body.19th Feb 1920Box 41 \ 4  Scan092
Copy of a telegram concerning the availability of a landaulette body.18th Feb 1920Box 41 \ 4  Scan093
Arrangements to inspect and alter a Landaulette body for an experimental car.25th Feb 1920Box 41 \ 4  Scan094
The requirement for a chassis to be sent to coachbuilders Barkers for a Saloon Body for 10,000-mile trials.26th Feb 1920Box 41 \ 4  Scan095
Requirement for Landaulet bodies to be fitted to experimental cars for passenger comfort testing.27th Feb 1920Box 41 \ 4  Scan096
Proposal for six experimental cars, detailing their configuration, testing plan, body types, and estimated costs.27th Feb 1920Box 41 \ 4  Scan097
Short memo about a potential cabriolet body for an experimental car.25th Feb 1920Box 41 \ 4  Scan098
Options for procuring new and secondhand landaulette and cabriolet bodies for experimental cars.2nd Mar 1920Box 41 \ 4  Scan099
Requirement and acquisition of Landaulet bodies for testing experimental cars.27th Mar 1920Box 41 \ 4  Scan100
Proposal for the allocation, testing, and body types for six experimental cars, including considerations for an American chassis model.27th Feb 1920Box 41 \ 4  Scan101
The purchase of a Cabriolet body from Barkers and ordering a new Landaulette body for experimental cars.6th Mar 1920Box 41 \ 4  Scan102
Ordering of a cabriolet and landaulet test bodies, including a quote from Barker's coachbuilders.10th Mar 1920Box 41 \ 4  Scan103
The loan of chassis 53-CW to the Experimental Department and its required return to the Test Department.12th Mar 1920Box 41 \ 4  Scan104
Visit to coachbuilders Fairey & Charles regarding a landaulette body for a long chassis.12th Mar 1920Box 41 \ 4  Scan105
Clarifying that the quoted £200 price for a cabriolet test body for experimental cars does not include the cost of fitting.12th Mar 1920Box 41 \ 4  Scan106
Experimental body from Fairey & Charles, referring to a previous communication.23th May 1919Box 41 \ 4  Scan107
Query regarding what is included in the £200 price for a Cabriolet Body from Messrs. Barkers for an experimental car.15th Mar 1920Box 41 \ 4  Scan108
Requesting the urgent return of chassis 53-CW from the Test/Experimental Department.15th Mar 1920Box 41 \ 4  Scan109
Urgent need for chassis 53-CW to be returned from the Experimental Department for delivery to its owner.13th Mar 1920Box 41 \ 4  Scan110
The prompt return of Test Department chassis 53-CW.5th Mar 1920Box 41 \ 4  Scan111
Requesting a delivery update for chassis 53 CW, currently in the Experimental Department, due to owner pressure.13th Mar 1920Box 41 \ 4  Scan112
Potential purchase of a second-hand car body.15th Mar 1920Box 41 \ 4  Scan113
Inquiry regarding interest in a second-hand Barker Landaulette body from a 1913 chassis.12th Mar 1920Box 41 \ 4  Scan114
Request for a cabriolet body specification from Barker's for experimental cars.16th Mar 1920Box 41 \ 4  Scan115
Fitting of a Cabriolet body by Barkers to an experimental chassis and inquiring about its completion date.17th Mar 1920Box 41 \ 4  Scan116
Fitting cabriolet and saloon bodies to experimental car chassis and associated delays.18th Mar 1920Box 41 \ 4  Scan117
Fittings included in the price for a Test Body from Barkers.11th Nov 1920Box 41 \ 4  Scan118
Internal request to order a second-hand Cabriolet body and its parts for £200.19th Mar 1920Box 41 \ 4  Scan119
Declining the offer of a second-hand Landaulet body.19th Mar 1920Box 41 \ 4  Scan120
Handover of chassis 53-CW from the Experimental Department back to the Test Department due to delivery concerns.25th Mar 1920Box 41 \ 4  Scan121
Chassis 53-CW, following up on a request for information for the Sales Department.26th Mar 1920Box 41 \ 4  Scan122
Overdue chassis that needs to be returned to the Test Department, which is now five months late.29th Mar 1920Box 41 \ 4  Scan123
Drawing and quotation from coachbuilders Fairey & Charles for a Landaulet body for a long experimental chassis.10th Apr 1920Box 41 \ 4  Scan124
Complaints about cars being driven too fast and unsafely within the works yards.14th Apr 1920Box 41 \ 4  Scan125
Notice regarding cars speeding on works premises, outlining new rules and the threat of instant dismissal.1st Apr 1920Box 41 \ 4  Scan126
Requesting assistance in sourcing a Landaulette body for chassis testing.21th Apr 1920Box 41 \ 4  Scan127
Request for an estimate and specification for a Landaulet Body from Fairey & Charles.21th Apr 1920Box 41 \ 4  Scan128
Difficulties with supplier Fairey & Charles for a Landaulet body, and getting a drawing from Hoopers instead.6th May 1920Box 41 \ 4  Scan129
Letter discussing bodywork options and specifications for an Experimental Landaulet Car.17th May 1920Box 41 \ 4  Scan130
Loan of a car to Mr. L. Rapson and advising against using an Experimental car for competitive trials.27th May 1920Box 41 \ 4  Scan131


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