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
The effectiveness of air cleaners for carburettor intakes, citing findings from Leyland Motors Ltd.1st Aug 1928Box 135 \ 4  scan0108
Inquiry to The S.U. Company regarding a proprietary air cleaner used on a horizontal carburetter.13th Jul 1931Box 135 \ 4  scan0109
Letter from The S.U. Company regarding a recommended air cleaner for a carburetter.14th Jul 1931Box 135 \ 4  scan0110
Inquiry to F. Smith & Sons for particulars of an air cleaner for an S.U. carburetter.16th Jul 1931Box 135 \ 4  scan0111
Letter from Frank Smith & Co. about supplying an AFN.type air filter for trial and asking to confirm intake dimensions.18th Jul 1931Box 135 \ 4  scan0112
Advertising brochure for the 'Smith' air filter with silencer and warning whistle.18th Jul 1931Box 135 \ 4  scan0113
The 'Smith' Air Filter with Silencer & Warning Whistle, its function, and maintenance.20th Jul 1931Box 135 \ 4  scan0114
Letter to F. Smith & Co. requesting a sample air cleaner for trial, specifying the carburetter dimensions.20th Jul 1931Box 135 \ 4  scan0115
Letter from Frank Smith & Co. following up on an AF3N 1.7 air filter sent to the Experimental Department.9th Oct 1931Box 135 \ 4  scan0116
Letter to Frank Smith & Co. regarding air filter testing and a request for a similar type with a sketch attached.12th Oct 1931Box 135 \ 4  scan0117
Blueprint for an Air Silencer for a S.U. 1 7/8 Carburettor.10th Oct 1931Box 135 \ 4  scan0118
Letter from Frank Smith & Co. regarding the development and supply of an air filter for an S.U. carburetter.13th Oct 1931Box 135 \ 4  scan0119
Delivery note from Frank Smith & Co. for air filters sent for trial.13th Oct 1931Box 135 \ 4  scan0120
Letter from Frank Smith & Co. regarding the supply, pricing, and specifications of AF3N air filters for use with S.U. carburettors.21th Dec 1931Box 135 \ 4  scan0121
Letter to Frank Smith & Co requesting a quotation for air filters and wire wool filtering medium pads.28th Dec 1931Box 135 \ 4  scan0122
The preparation of wire and worsted material for air filters.23th Nov 1932Box 135 \ 4  scan0123
Potential choking of Voke's air filters on Bentleys and a proposal to test oil carb cleaners for the Phantom III model in Africa.25th Jan 1937Box 135 \ 4  scan0124
Request to place an official order for four Burgess Air Filters for experimental testing.17th Feb 1937Box 135 \ 4  scan0125
Two revised designs for the 'A.C.' bye-pass filter mounting to address failures experienced during testing.9th Apr 1938Box 135 \ 4  scan0126
Standardisation and pricing of Vokes and Burges filter elements.12th May 1938Box 135 \ 4  scan0127
Letter from Air-Maze (Great Britain) Ltd. promoting their air filters and flame arresters.25th Aug 1938Box 135 \ 4  scan0128
Letter to Air Maze Ltd. arranging a meeting with Mr. Walton regarding Air-Maze Filters.5th Sep 1938Box 135 \ 4  scan0129
Letter from Air-Maze (Great Britain) Ltd. offering to demonstrate an Air-Maze filter.5th Dec 1938Box 135 \ 4  scan0130
Promotional leaflet for Air-Maze air filters, outlining their benefits, types, and applications.5th Dec 1938Box 135 \ 4  scan0131
Advertising brochure for Air-Maze air filters, detailing the Oil Bath and Unimaze types.7th Dec 1938Box 135 \ 4  scan0132
Letter from the Experimental Department to Air Maze Ltd. arranging a meeting.7th Dec 1938Box 135 \ 4  scan0133
Letter from Air-Maze (Great Britain) Ltd. arranging a meeting for the following Wednesday.12th Dec 1938Box 135 \ 4  scan0134
Letter from Air-Maze confirming the production of a sample oil bath air filter and future quotations.20th Dec 1938Box 135 \ 4  scan0135
Letter from Air-Maze (Great Britain) Limited discussing the design of an oil bath filter for a 25/30 HP unit.20th Dec 1938Box 135 \ 4  scan0136
Continuation sheet of a letter from W.F. McGloon, Sales Manager of Air-Maze (Great Britain) Limited.13th Jan 1939Box 135 \ 4  scan0137
Letter to Air-Maze Ltd. from the Experimental Department requesting an air filter for testing purposes.13th Jan 1939Box 135 \ 4  scan0138
Letter from Air-Maze (Great Britain) Limited confirming the production of an Air-Maze Oil bath filter.18th Jan 1939Box 135 \ 4  scan0139
Letter from Air-Maze (Great Britain) Limited regarding a delay in manufacturing a non-standard oil bath filter sample.6th Feb 1939Box 135 \ 4  scan0140
Letter from Air-Maze to the Experimental Department confirming completion and proposing delivery of an oil bath filter.18th Apr 1939Box 135 \ 4  scan0141
Letter from Air-Maze (Great Britain) Limited regarding air filters and an attached blueprint for an aircraft filter panel.21th Apr 1939Box 135 \ 4  scan0142
Letter from Air-Maze (Great Britain) Limited concerning a sample oil bath filter, including instructions and pricing.29th Apr 1939Box 135 \ 4  scan0143
Letter from Air-Maze following up on the performance of an oil bath air filter being tested on an experimental chassis.19th Jun 1939Box 135 \ 4  scan0144
Letter to Air-Maze Ltd. explaining a delay in testing their oil bath filter.24th Jun 1939Box 135 \ 4  scan0145
Letter from Air-Maze (Great Britain) Limited acknowledging correspondence.27th Jun 1939Box 135 \ 4  scan0146
Letter from Air-Maze (Great Britain) Limited proposing a meeting in Derby.24th Nov 1939Box 135 \ 4  scan0147
Letter from Air-Maze (Great Britain) Limited regarding a sample oil bath air filter and a handwritten response.5th Dec 1939Box 135 \ 4  scan0148
Letter from Air-Maze (Great Britain) Limited regarding tests on an oil-washing type filter.20th Jun 1940Box 135 \ 4  scan0149
Letter to Air-Maze, Limited, regarding a sample air filter and the halt of motor car development due to the war.23th Jun 1940Box 135 \ 4  scan0150
Letter from Air-Maze (Great Britain) Limited concerning an Air-Maze air filter for a 25-HP engine unit.3rd Jul 1940Box 135 \ 4  scan0151
Letter to Air-Maze Ltd. explaining that their cleaner cannot be installed due to altered engine mountings.7th Jul 1940Box 135 \ 4  scan0152
Request to borrow an AutoKlean filter from the Experimental Test Beds.22th Jul 1940Box 135 \ 4  scan0153
Arranging a visit from a representative of Air-Maze Ltd. to Derby.26th Jun 1941Box 135 \ 4  scan0154
Modifications to front timing gears to resolve trouble and expense.11th Apr 1911Box 136 \ 1  scan0001
To Mr. Swetnam requesting instructions be sent to the shop to produce a set of heavier bronze engine gears.22th Sep 1911Box 136 \ 1  scan0002
Meeting minutes discussing the delivery of engine gears and a design for a wheel withdrawal device.23th Oct 1911Box 136 \ 1  scan0003
The design of engine gears, specifically requesting a device for withdrawing the wheel from the camshaft.23th Oct 1911Box 136 \ 1  scan0004
Meeting minutes regarding the production status of brass and iron timing gears for the 1900 Series.13th Nov 1911Box 136 \ 1  scan0005
Test report on Cast Iron and Phosphor Bronze gears.11th Oct 1911Box 136 \ 1  scan0006
Meeting minutes discussing the testing of bronze versus cast iron timing gears for the 1900 series.30th Nov 1911Box 136 \ 1  scan0007
Meeting minute extract regarding the testing of bronze and cast iron timing gears for the 1900 series.7th Dec 1911Box 136 \ 1  scan0008
Meeting note discussing a report on noisy engine gears and the lengthy experiments required to find a solution.8th Dec 1911Box 136 \ 1  scan0009
Meeting notes regarding the testing of cast iron timing gears for the 1900 series and the delivery of more material.28th Dec 1911Box 136 \ 1  scan0010
Record card detailing the supply and status of C.S. timing gears to the Test Department.29th Dec 1911Box 136 \ 1  scan0011
Meeting minutes discussing the issue of noisy engine gears and ongoing tests with alternative materials.4th Jan 1912Box 136 \ 1  scan0012
Gear stripping failure on car No. 763 and the decision to design a spring drive to isolate crankshaft vibration.24th Apr 1912Box 136 \ 1  scan0013
Potential change to the timing gear case and base chamber and its associated cost.26th Aug 1912Box 136 \ 1  scan0014
Small tooth sewing wheels in chrome nickel steel.26th Aug 1912Box 136 \ 1  scan0015
Noisy paper timing gears on Chassis 2090 E. and the hope for new helical gears.20th Dec 1912Box 136 \ 1  scan0016
The timing gears of experimental chassis number 1649.23th Sep 1913Box 136 \ 1  scan0017
Inspection report on timing wheel sizes and the condition of related components.30th Apr 1913Box 136 \ 1  scan0018
Instructions regarding the Slipper Drive, Crank pinion springs, and Fibre Rings.30th Apr 1913Box 136 \ 1  scan0019
Standardisation proposal to cancel the covers for thrust bearings on engine gears.3rd Oct 1923Box 136 \ 1  scan0020
Proposal to increase the depth of engine timing gears to eliminate the need for topping by grinding.1st Nov 1924Box 136 \ 1  scan0021
The design and lubrication of an adjustable carrier wheel.31th Mar 1928Box 136 \ 1  scan0022
That the teeth for the Super Sports Engine timing gears be cut after assembly.28th Aug 1928Box 136 \ 1  scan0023
Alterations to engine timing with diagrams for two new proposed camshafts.30th Aug 1928Box 136 \ 1  scan0024
The manufacturing process and interchangeability of engine timing gears for a super sports car.6th Sep 1928Box 136 \ 1  scan0025
Modification to fix an oil leak from the timing gears on 'SS' engines by reducing the nozzle diameter.12th Nov 1928Box 136 \ 1  scan0026
Sketch showing a restriction in the timing gears' oil pipe for a Super Sports model.12th Nov 1928Box 136 \ 1  scan0027
The decision not to modify an oil pipe for the 'S.S.' Timing Gear lubrication.22th Nov 1928Box 136 \ 1  scan0028
Provision for end adjustment on timing gears to enable lining them up.29th Jan 1929Box 136 \ 1  scan0029
Suggestion for cheaper Peregrine timing gears using a 45° spiral angle.30th May 1932Box 136 \ 1  scan0030
Blueprint detailing the specifications and tooth profile for the Peregrine engine gears.28th Jun 1932Box 136 \ 1  scan0031
Two schemes for a Bensports timing gear layout, including details for overhead camshafts and a gear-driven blower.28th Jun 1932Box 136 \ 1  scan0032
Uncorrected blueprint for a modified stroke, crankpin diameter, and a new scheme for timing gear drives.28th Jun 1932Box 136 \ 1  scan0033
Standardisation of chassis parts report for a brake on a dynamo pinion for a 20/25 B.HP engine.11th Jul 1932Box 136 \ 1  scan0034
Implementation costs and schedule for fitting a new chassis part.16th May 1933Box 136 \ 1  scan0035
The timing for experimental car camshafts.16th May 1933Box 136 \ 1  scan0036
Causes and potential solutions for engine gear rattles.30th May 1933Box 136 \ 1  scan0037
Evaluating various design options for engine drive mechanisms, including brakes and dampers.30th May 1933Box 136 \ 1  scan0038
Letter to Messrs Lendrum & Hartman Ltd. requesting to purchase a Buick timing gear and asking for details on its material composition.2nd Jun 1933Box 136 \ 1  scan0039
Inquiry regarding the material 'Texolit' used in Buick car timing gears and its availability in the country.2nd Jun 1933Box 136 \ 1  scan0040
Urgent internal memo requesting enquiries into obtaining Texolit blanks for timing gears.2nd Jun 1933Box 136 \ 1  scan0041
Design and materials of engine timing gears from Buick and Cadillac.3rd Jun 1933Box 136 \ 1  scan0042
Illustration of a Timing Gear Case.6th Jun 1933Box 136 \ 1  scan0043
Letter from Buick concessionaires regarding a Buick Timing Gear and its Textalite component.6th Jun 1933Box 136 \ 1  scan0044
Letter of thanks to Messrs Lendrum & Hartman Ltd. for their letter and the timing gear.7th Jun 1933Box 136 \ 1  scan0045
The preparation of a modified set of Bensport timing gears for trial.7th Jun 1933Box 136 \ 1  scan0046
Invoice from Lendrum & Hartman for a Buick Camshaft Gear.13th Jun 1933Box 136 \ 1  scan0047
Order to be passed for a Buick camshaft gear.14th Jun 1933Box 136 \ 1  scan0048
Fabroil Gear samples and their material properties for testing.17th Jun 1933Box 136 \ 1  scan0049
Gear design principles and providing Fabroil material for an experiment.17th Jun 1933Box 136 \ 1  scan0050
Specifications for Bentley timing gears.22th Jun 1933Box 136 \ 1  scan0051
Modifications to a cam pinion and crankdamper to investigate engine gear rattles.23th Jun 1933Box 136 \ 1  scan0052
Drawing of a slipping inertia for a spring-driven cam pinion.26th Jun 1933Box 136 \ 1  scan0053


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