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                
Choose Archive


Browsing Records        Page 402 of 2367        Sort by   Box   Date   Description

Filter      from        to             identifier   [all]
DescriptionDateIdentifier
Proposed experimental design for brake covers to prevent mud and stone ingress.21th Jul 1925Box 32 \ 2  Scan077
Proposed simple cover design for the 40/50 HP rear brakes.1st Jul 1925Box 32 \ 2  Scan078
Semi-hydraulic brake system, noting a similar design by the Sunbeam Co. and questioning the patentability of their own design.17th Oct 1932Box 32 \ 2  Scan079
Potential substitution of Duralumin with hard rolled aluminium sheet for Brake Cover Plates to achieve a cost saving.16th Dec 1932Box 32 \ 2  Scan080
Running aluminium brake carrier plates on cars in France.15th Feb 1933Box 32 \ 2  Scan081
Test report on the extension of two Bensport front brake ropes under sustained load.11th May 1933Box 32 \ 2  Scan082
Analysis of an uncompensated braking system with mathematical formulas and test results.25th Sep 1933Box 32 \ 2  Scan083
Proposal to redesign the front brake equaliser mechanism for improved efficiency and lower cost.25th Sep 1933Box 32 \ 2  Scan084
Requesting a valve modification to resolve an issue with brake thumps.13th Oct 1933Box 32 \ 2  Scan085
Blueprint of a valve for a front brake dashpot, including specifications for an internal spring.13th Oct 1933Box 32 \ 2  Scan086
Blueprint of a Type 33 steering axle with 45 Hispano brakes.12th Apr 1923Box 32 \ 2  Scan087
Pricing and discount information for Wakefields Castrol Racing Oil.8th Dec 1911Box 32 \ 3  Scan001
Letter from C.C. Wakefield & Co requesting an appointment for their representative, Mr. Still.29th Jul 1912Box 32 \ 3  Scan002
Letter from C.C. Wakefield & Co. proposing a 10,000-mile trial of their motor oil.7th Aug 1912Box 32 \ 3  Scan003
Letter detailing proposed modifications to a crankshaft and flywheel to reduce vibration and increase power, with an attached internal handwritten note.22th Jul 1912Box 32 \ 3  Scan004
Letter to C. C. Wakefield & Co. requesting samples of touring and racing oil for testing.29th Aug 1912Box 32 \ 3  Scan005
Letter from C.C. Wakefield & Co. sending two motor oils for testing and detailing the properties of their touring oil.31th Aug 1912Box 32 \ 3  Scan006
Letter from C.C. Wakefield & Co. regarding the performance of their product in various race cars.31th Aug 1912Box 32 \ 3  Scan007
Sending two samples of Wakefield's oils, a racing and a touring oil, to Prices for analysis.17th Sep 1912Box 32 \ 3  Scan008
Letter to C.C. Wakefield & Co. confirming receipt of two types of oil for testing purposes.17th Sep 1912Box 32 \ 3  Scan009
Letter from Price's Patent Candle Company regarding the analysis of Wakefield's Racing and Touring Oil samples.11th Oct 1912Box 32 \ 3  Scan010
Laboratory report from Price's Patent Candle Company comparing the properties of various motor oils.10th Oct 1912Box 32 \ 3  Scan011
Departmental memo comparing the properties of Wakefield's Racing and Touring Oils against Price's Motorine 'B' oil.15th Oct 1912Box 32 \ 3  Scan012
Departmental memo discussing the stability and fatty acid content of Wakefield's Oils.15th Oct 1912Box 32 \ 3  Scan013
Return of Price's report on Wakefields oils.24th Oct 1912Box 32 \ 3  Scan014
Departmental memo forwarding correspondence and reports concerning the tests of Wakefields Oils.31th Jan 1913Box 32 \ 3  Scan015
Internal query regarding the suitability of Wakefield's Castrol heavy 'A' Lubricating oil for six-cylinder engines.12th Aug 1913Box 32 \ 3  Scan016
Responding to a query about Wakefield's Oil, stating it has not been tested but can be obtained for testing purposes.13th Aug 1913Box 32 \ 3  Scan017
Letter from L.C. Seligmann & Co. inquiring about the recommended use of Wakefield Castrol oil.4th Nov 1913Box 32 \ 3  Scan018
Standardisation of Castrol oil for car engines.22th Sep 1919Box 32 \ 3  Scan019
The performance of Wakefield's Castrol lubricating oil in experimental cars.1st Jun 1920Box 32 \ 3  Scan020
The performance of Castrol oil compared to other oils, particularly regarding its low setting point and carbon formation.8th Jun 1920Box 32 \ 3  Scan021
Copy of a telegram from Mr. Royce regarding the use of castor oil as a lubricant.15th Mar 1915Box 32 \ 3  Scan022
Telegram with instructions regarding a defective rod, lubricant, and continued testing.19th Mar 1915Box 32 \ 3  Scan023
10,000-mile trial of Castrol lubricating oil, detailing engine condition and chemical analysis.19th Mar 1915Box 32 \ 3  Scan024
Article explaining the layout and function of the Westinghouse Morse cam-shaft drive and chain adjustment system.31th Dec 1919Box 32 \ 3  Scan025
Letter from C.C. Wakefield & Co. regarding the supply of Castrol 'R' oil in Paris for an experimental car.31th Dec 1919Box 32 \ 3  Scan026
Potential recommendation of Castrol oil for car engines, pending further testing.22th Sep 1919Box 32 \ 3  Scan027
The use of Castor Oil for lubricating the clutch.14th Nov 1919Box 32 \ 3  Scan028
Benefits of using a good quality lubricating oil like Castrol over pure mineral oil.11th Jun 1920Box 32 \ 3  Scan029
The recommendation of Castrol oil for car engines.21th Jul 1920Box 32 \ 3  Scan030
Potential use of Castrol oil as a standard practice for car engines, pending further testing.22th Sep 1919Box 32 \ 3  Scan031
The performance of Wakefields Castrol 'R' Oil in experimental car engines and gearboxes.22th Jul 1920Box 32 \ 3  Scan032
Note confirming the engine of chassis 1.EX was refilled with 'Castrol' and that Mr. Royce personally overhauled the chassis.6th Aug 1920Box 32 \ 3  Scan033
Various mechanical issues and observations for chassis 1EX.10th Aug 1920Box 32 \ 3  Scan034
Inquiry regarding the supplier and specification for a specific Castor Oil lubricant at the request of Mr. Royce.12th Aug 1920Box 32 \ 3  Scan035
Short memo specifying the use of Wakefields Castrol racing 'R' as the castor oil lubricant.1st Aug 1920Box 32 \ 3  Scan036
Coded cablegram from Springfield about purchasing Wakefield Castrol and a request to standardize it.27th Sep 1920Box 32 \ 3  Scan037
Distributing standardisation sheets for Wakefield Castrol 'R' Oil, a Whittle belt, and a silencer modification.4th Oct 1920Box 32 \ 3  Scan038
Standardisation of chassis parts concerning the use of Wakefield Castrol 'R' Oil to reduce engine wear.4th Oct 1920Box 32 \ 3  Scan039
Advantages of using high-quality, castor oil-based lubricating oils.10th Oct 1920Box 32 \ 3  Scan040
Benefits of using less castor oil, leading to reduced running costs and extended overhaul intervals.1st Oct 1920Box 32 \ 3  Scan041
Suitability and potential standardisation of Wakefields Castrol 'R' oil.13th Oct 1920Box 32 \ 3  Scan042
Letter to Wakefield & Co. seeking an expert opinion on the effects of mixing Castrol 'R' oil with ordinary mineral oil.13th Oct 1920Box 32 \ 3  Scan043
Letter from C.C. Wakefield & Co. regarding the suitability of mixing Castrol 'R' oil with other high-grade lubricants.14th Oct 1920Box 32 \ 3  Scan044
Letter from C.C. Wakefield & Co. regarding Castrol 'R' oil for use in cars.14th Oct 1920Box 32 \ 3  Scan045
Extract from a letter to the editor of 'MOTOR TRACTION' regarding lubricating oil supplies.8th Nov 1920Box 32 \ 3  Scan046
Page 2 of a letter by David J. Smith discussing experiments with graphite-based lubricating oils like Suspensol.11th Nov 1920Box 32 \ 3  Scan047
Letter to the editor of 'Motor Traction' regarding lubricating oil supplies and piston efficiency.11th Nov 1920Box 32 \ 3  Scan048
Letter detailing engine oil analysis and the performance of new piston and ring sets in vehicles.26th Oct 1920Box 32 \ 3  Scan049
Recommendation to use Wakefields Castrol 'R' Oil for the demonstration car.26th Oct 1920Box 32 \ 3  Scan050
Cylinder wear and potential solutions involving different lubricating oils, piston rings, and oil change schedules.3rd Nov 1920Box 32 \ 3  Scan051
Letter from C.C. Wakefield & Co. Limited discussing the comparative properties of paraffin and asphaltic base oils.16th Nov 1920Box 32 \ 3  Scan052
Letter from C. C. Wakefield & Co. regarding the history of mineral lubricating oils.16th Nov 1920Box 32 \ 3  Scan053
Comparison of engine starting tests using Prices' 'C' Oil and Castrol Oil on a 40/50 engine.14th Dec 1920Box 32 \ 3  Scan054
Motor starter tests comparing performance with Prices' 'C' oil and Castrol oil.11th May 1940Box 32 \ 3  Scan055
Internal memorandum regarding a formal reply on the subject of 'Castrol' Oil.2nd Feb 1921Box 32 \ 3  Scan056
Recommendation to address U.S.A. customer complaints of cylinder wear by using a lubricant composed of 80-90% castor oil.8th Jun 1921Box 32 \ 3  Scan057
Letter from C.C. Wakefield & Co. listing their international arrangements for 'CASTROL' oil.17th Nov 1921Box 32 \ 3  Scan058
Letter from C.C. Wakefield & Co. Ltd. regarding international agents and the availability of Castrol oil.17th Nov 1921Box 32 \ 3  Scan059
The availability of Wakefields XL Castrol Oil in foreign countries for the 40/50 HP chassis.18th Nov 1921Box 32 \ 3  Scan060
Letter from C.C. Wakefield & Co. Ltd. to Rolls-Royce detailing their agents for 'CASTROL' oil abroad.17th Nov 1921Box 32 \ 3  Scan061
Letter from C.C. Wakefield & Co. Ltd. discussing the international distribution of 'CASTROL X.L' oil.17th Nov 1921Box 32 \ 3  Scan062
Confidential memo addressing the unauthorized publication of motor oil recommendations for the 20-HP model by Wakefield's.6th Mar 1922Box 32 \ 3  Scan063
Clarifying Wakefield Company's oil recommendations for 20-HP models.6th Mar 1922Box 32 \ 3  Scan064
Apology from Wakefield's for mistakenly referring to the 20-HP model in their price list.16th Mar 1922Box 32 \ 3  Scan065
Laboratory report comparing the properties of Adcol Light Racing Oil, Adcol Heavy Racing Oil, and Wakefield's XL Oil.28th Nov 1923Box 32 \ 3  Scan066
Dissatisfaction with Prices Oil, plans to test alternatives, and the current recommendation of Duckhams Oil to customers.18th Dec 1923Box 32 \ 3  Scan067
Recommendation to use Castrol XL oil as a suitable alternative for 40/50 HP and 20 HP cars.3rd Jun 1924Box 32 \ 3  Scan068
Increase in the price of Castrol oil.24th Jul 1924Box 32 \ 3  Scan069
Laboratory report comparing an unused and a used sample of 'Castrol' Oil.2nd Feb 1925Box 32 \ 3  Scan070
Order for a 50-gallon barrel of XL Oil to be dispatched to Mr. Lidsey in France.2nd Feb 1925Box 32 \ 3  Scan071
Letter from Wakefield & Co. (Castrol) regarding dissatisfaction with information provided for 'R' and 'XL' oils.1st Apr 1925Box 32 \ 3  Scan072
Internal request to order a 50-gallon barrel of Wakefields 'XL' Motor Oil for delivery to Chateauroux, France.6th Apr 1925Box 32 \ 3  Scan073
Letter following up on a previously promised reply and an order for France.16th Apr 1925Box 32 \ 3  Scan074
Order for two 50-gallon barrels of Wakefield's 'XL' Motor Oil for delivery to Chateauroux, France.12th May 1925Box 32 \ 3  Scan075
Letter to Messrs. C.C. Wakefield Ltd. requesting the composition particulars for 'XL' lubricating oil.21th May 1925Box 32 \ 3  Scan076
Letter from C.C. Wakefield & Co. detailing the composition of Castrol 'XL' Motor Oil.22th May 1925Box 32 \ 3  Scan077
Letter regarding the dispatch of two barrels of Castrol K.L Motor Oil to Chateauroux, France, quoting correspondence from C.C. Wakefield & Co. Ltd.6th Jun 1925Box 32 \ 3  Scan078
Letter from C.C. Wakefield & Co. regarding the supply and promotion of Castrol oil for Rolls-Royce cars on the Riviera.29th Jun 1925Box 32 \ 3  Scan079
List of garages in Marseilles, South of France, that stock Castrol oil.29th Jun 1925Box 32 \ 3  Scan080
List of agents and garages located in various cities in France, page 2.29th Jun 1925Box 32 \ 3  Scan081
Typed list of agents and garages located in various French cities.29th Jun 1925Box 32 \ 3  Scan082
Page 4 of a list of garages and mechanics located in various districts of France.29th Jun 1925Box 32 \ 3  Scan083
List of contacts and addresses in the Pyrenees regions of France, page 5.1st Sep 1925Box 32 \ 3  Scan084
Request for samples of Shell Super Light Racing Oil for analysis and testing.1st Sep 1925Box 32 \ 3  Scan085
Performance of Shell super light racing oil compared to other compound and fatty oils.24th Oct 1925Box 32 \ 3  Scan086
Inquiry about the availability of Castrol 'XL' oil in various locations in France.5th Jan 1926Box 32 \ 3  Scan087
Letter from C.C. Wakefield & Co. Ltd regarding car testing in France and a request for a list of stockists.6th Jan 1926Box 32 \ 3  Scan088
Letter from C.C. Wakefield & Co. about the availability of Castrol 'XL' motor oil in the South of France.8th Jan 1926Box 32 \ 3  Scan089


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙