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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Weight savings achieved and proposed for tool kit items like box spanners and a Dunlop jack.5th Mar 1935Box 155 \ 4  scan0115
Proposals to revise the Bentley tool kit to save weight and lighten the Dunlop jack.18th Mar 1935Box 155 \ 4  scan0116
Proposed weight savings for the Bentley Tool Kit, specifically the wheel spanner and hammer.3rd Apr 1935Box 155 \ 4  scan0117
Proposed saving on the Bentley Tool Kit, referencing previous designs for the wheel spanner and hammer.3rd Apr 1935Box 155 \ 4  scan0118
Inquiry for further information about the lightened Dunlop jack for the Bentley Tool Kit.26th Apr 1935Box 155 \ 4  scan0119
Inquiry regarding the implementation date for the revised Bentley tool kit scheme.15th May 1935Box 155 \ 4  scan0120
Introduction of a revised Bentley tool kit for the 'F' series and the rejection of a lightened jack.16th May 1935Box 155 \ 4  scan0121
The introduction of a revised Bentley Tool Kit for the 'F' series.22th May 1935Box 155 \ 4  scan0122
Design of double-ended jaw spanners for car tool kits.11th Sep 1935Box 155 \ 4  scan0123
The four different spanner sizes required for the rear axle of the Phantom III and the proposed deletion of a specific key.5th Feb 1936Box 155 \ 4  scan0124
Request to include a specific tappet spanner in the tool kits for Phantom III & 25 HP cars.5th Mar 1936Box 155 \ 4  scan0125
The inclusion of a .015' feeler gauge in the tool kits for the 4¼ Litre Bentley.9th Mar 1936Box 155 \ 4  scan0126
Removal of the Schrader Universal pump connection from tool kits to reduce chassis costs.3rd Apr 1936Box 155 \ 4  scan0127
Recommendation to remove the Schrader Universal pump connection from all tool kits as it is deemed unnecessary.8th Apr 1936Box 155 \ 4  scan0128
Instructing the removal of the Schrader Universal Pump Connection from spares equipment once stock is depleted.15th Apr 1936Box 155 \ 4  scan0129
Removing the distributor cam on Bentley and 20/25 HP cars, warning against bending the spindle by using a screwdriver.12th Jun 1936Box 155 \ 4  scan0130
Removal of the distributor cam on Bentley and 25/30HP cars and clarifying the number of cam extractors available.12th Jun 1936Box 155 \ 4  scan0131
Instructions for a flexible petrol can nozzle for Phantom III and Bentley chassis tool kits.3rd Feb 1937Box 155 \ 4  scan0132
Throttle body distortion in a 4.25-litre Bentley, potentially caused by non-standard spanners and washer design.8th Jun 1937Box 155 \ 4  scan0133
Blueprint of a throttle flange joint for 4 1/4 Litre and 3 1/2 Litre engines.6th Dec 1937Box 155 \ 4  scan0134
Proposed list of tools and prices for the Bentley 50 tool kit.6th Dec 1937Box 155 \ 4  scan0135
Priced list of various spanners, bars, and tools.6th Dec 1937Box 155 \ 4  scan0136
Cost savings on the standard Bentley tool kit and spares by omitting or changing certain items.3rd Feb 1938Box 155 \ 4  scan0137
List of tools to form the Wraith tool kit.3rd Feb 1938Box 155 \ 4  scan0138
Requesting an order for six sets of spanners and tools for the Wraith III chassis.9th Feb 1938Box 155 \ 4  scan0139
Method for housing tool kits on the new Bentley S.B.J. body.20th Sep 1938Box 155 \ 4  scan0140
Photograph of a car's rear, featuring a boot lid that folds down into a luggage rack.20th Sep 1938Box 155 \ 4  scan0141
Rear view of a saloon car showing the open boot lid with an integrated toolkit.22th Sep 1938Box 155 \ 4  scan0142
Letter from coachbuilder Park Ward & Co. Ltd. concerning the method for housing tool kits.22th Sep 1938Box 155 \ 4  scan0143
List of tools deleted from the Bentley V standard tool kit.5th Apr 1939Box 155 \ 4  scan0144
List of tools to be carried in the Bentley V car.5th Apr 1939Box 155 \ 4  scan0145
List of tools and spares for garage use for the Bentley V model, including spares for spring gaiters.5th Apr 1939Box 155 \ 4  scan0146
Covering note for a proposed list of tools and spares for the Bentley V.26th Jun 1939Box 155 \ 4  scan0147
Rationalisation of tool kits for different car models.22th Jan 1940Box 155 \ 4  scan0148
Proposal for a revised car tool kit for various models, including a list of discarded tools and specific spanner alterations.22th Jan 1940Box 155 \ 4  scan0149
Special tool for the Silver Ghost chassis and attached lists for tool kits and spares.22th Jan 1940Box 155 \ 4  scan0150
Suggested tool kit list with part numbers and notes on required changes.22th Jan 1940Box 155 \ 4  scan0151
List of discarded tools, spares, and accessories.22th Jan 1940Box 155 \ 4  scan0152
List of parts included in the Continental Spares Kit.22th Jan 1940Box 155 \ 4  scan0153
Requesting an inquiry to Armstrong, Stevens & Son regarding the supply of various spanners.4th Mar 1940Box 155 \ 4  scan0154
The storage of road tools in experimental cars.5th Apr 1940Box 155 \ 4  scan0155
List of requested inspection tools for the Chassis Section, including itemized costs.11th Feb 1941Box 155 \ 4  scan0156
The unsatisfactory progress by Motor Panels Coventry in locating and storing press tools for B.V. bodies.28th Feb 1941Box 155 \ 4  scan0157
Letter to Motor Body Panels Ltd. regarding missing, misplaced, and rusting tools for B.V. bodies and requesting information for future production.28th Feb 1941Box 155 \ 4  scan0158
Letter regarding the unsatisfactory condition and storage of tools, emphasizing the need for proper care.28th Feb 1941Box 155 \ 4  scan0159
Requesting feedback and remarks on an R.P. Adjustable Thermostat.4th May 1929Box 156 \ 1  scan0001
Requesting a test of an R.P. adjustable thermostat's opening characteristics.7th May 1929Box 156 \ 1  scan0002
Testing status of an R.P. Adjustable Thermostat.29th May 1929Box 156 \ 1  scan0003
Laboratory report on the calibration of an R.P. Adjustable thermostat, noting an inability to test under a water head and observations of a lag in operation.7th May 1929Box 156 \ 1  scan0004
Hand-drawn diagram illustrating the operational range and settings of a valve.13th May 1929Box 156 \ 1  scan0005
Forwarding a copy of a letter from the R.P. Adjustable Thermostat Co. Ltd.13th May 1929Box 156 \ 1  scan0006
Letter from The R.P. Adjustable Thermostat Co. Ltd. regarding continued tests and a potential spring tension issue.10th May 1929Box 156 \ 1  scan0007
Promotional leaflet for the R.P. Adjustable Thermostat, an aftermarket device to control engine temperature.10th May 1929Box 156 \ 1  scan0008
Leaflet detailing the features, operation, fitting instructions, and price of the 'R.P.' Adjustable Thermostat.2nd Feb 1929Box 156 \ 1  scan0009
Article reprint discussing the performance and fuel economy benefits of the 'R.P.' Adjustable Thermostat.2nd Feb 1929Box 156 \ 1  scan0010
Extract from a newspaper article by the Earl of March detailing the benefits of fitting an adjustable thermostat to a car.10th Feb 1929Box 156 \ 1  scan0011
Cablegram from Segrave in Daytona Beach confirming the satisfactory function of a thermostat.12th Mar 1929Box 156 \ 1  scan0012
Advertisement and fitting guide for the R.P. Adjustable Thermostat and Dashboard Thermometer.26th Jun 1929Box 156 \ 1  scan0013
Unsatisfactory adjustable thermostat returned to stores after testing.26th Jun 1929Box 156 \ 1  scan0014
Faults with an R.P. Adjustable Thermostat, specifically a spring issue causing flutter, and suggesting a modification.1st Jun 1929Box 156 \ 1  scan0015
'R.P.' Patent Thermostatic Vacuum-Operated Shutters offered by The Houdaille Hydraulic Suspension Co., Ltd.14th Oct 1930Box 156 \ 1  scan0016
Letter from The Houdaille Hydraulic Suspension Co. regarding their patent thermostatic vacuum-operated shutters.13th Oct 1930Box 156 \ 1  scan0017
From The Houdaille Hydraulic Suspension Co. detailing the 'R.P.' patent thermostatic-vacuum control for radiator shutters.1st Oct 1930Box 156 \ 1  scan0018
Scheme for thermostat vacuum-operated shutters and arranging a visit to a stand at Olympia.18th Oct 1930Box 156 \ 1  scan0019
Further information received from suppliers about thermostat vacuum-operated shutters.20th Oct 1930Box 156 \ 1  scan0020
Letter from The Houdaille Hydraulic Suspension Co., Ltd. regarding a patent thermostat vacuum control for radiator shutters.18th Oct 1930Box 156 \ 1  scan0021
Article discussing the development and operation of suction-operated radiator shutters.14th Oct 1930Box 156 \ 1  scan0022
The sale of rights for the R.P. Adjustable Thermostat from Houdaille to S. Smith & Sons.14th May 1931Box 156 \ 1  scan0023
Letter from Crosby Valve & Engineering Co Ltd regarding a misunderstanding about the operating temperature of radiator thermostats.9th Feb 1933Box 156 \ 1  scan0024
Letter from Crosby Valve & Engineering Co. Ltd. detailing the results and methodology of thermostat testing.9th Feb 1933Box 156 \ 1  scan0025
The despatch of sample thermostats to The Crosby Valve & Engineering Co.16th Feb 1933Box 156 \ 1  scan0026
Letter to The Crosby Valve & Engineering Co regarding testing and fitting issues with six sample thermostats.16th Feb 1933Box 156 \ 1  scan0027
Letter from Crosby Valve & Engineering Co Ltd regarding the return of sample thermostats.17th Feb 1933Box 156 \ 1  scan0028
Blueprint showing a cross-section and top view of a mechanical assembly.17th Feb 1933Box 156 \ 1  scan0029
Blueprint showing a section and plan view of a friction-style shock absorber with a lever arm.17th Feb 1933Box 156 \ 1  scan0030
Instruction sheet for the R.P. Adjustable Thermostat and Smith's engine temperature thermometers.17th Feb 1933Box 156 \ 1  scan0031
Fitting instructions for a Smith Radiator Thermometer and associated gauges.17th Feb 1933Box 156 \ 1  scan0032
Adjustment and fitting instructions for the Smith 'R.P.' Adjustable Thermostat.17th Feb 1933Box 156 \ 1  scan0033
Informational leaflet with fitting instructions for a Smith R.P. Adjustable Thermostat.9th Jan 1934Box 156 \ 1  scan0034
Test report comparing 'Packless Gland Co.' and 'Smith's Standard' calorstats.9th Jan 1934Box 156 \ 1  scan0035
Graph from calorstat tests comparing a Smith's standard production model with a packless gland type.27th Dec 1933Box 156 \ 1  scan0036
Graph comparing the performance of Smith's 'H' filling and 'Packless Gland' type calorstats after 10,000 miles.27th Dec 1933Box 156 \ 1  scan0037
Diagram illustrating the operation and applied loads of a thermostat-controlled shutter mechanism.5th Jul 1934Box 156 \ 1  scan0038
Experimental modifications to the Bentley Water Temperature Regulator to avoid corrosion.5th Jul 1934Box 156 \ 1  scan0039
Tests and modifications to a Bentley Thermostat.6th Jul 1934Box 156 \ 1  scan0040
Testing of thermostats for Bentley cars, which were found to be reading high.6th Jul 1934Box 156 \ 1  scan0041
Bentley thermostats, their specifications, and anticipated performance compared to radiator shutters.12th Jul 1934Box 156 \ 1  scan0042
Design alterations and testing for Bentley thermostats and air intake systems.13th Jul 1934Box 156 \ 1  scan0043
Letter from Corfield Ltd. regarding the development and potential application of Rototherm bi-metal thermometers for motor cars.1st Sep 1934Box 156 \ 1  scan0044
Advertisement leaflet for Rototherm thermometers, comparing them to older mercury-based models.1st Sep 1934Box 156 \ 1  scan0045
Advertising leaflet for the Rototherm dial thermometer, detailing its advantages and various models.1st Sep 1934Box 156 \ 1  scan0046
Product leaflet advertising the 'Rototherm', a new thermometer with a speedometer-style dial.17th May 1934Box 156 \ 1  scan0047
Drawing illustrating various types and configurations of dial gauges and fittings.17th May 1934Box 156 \ 1  scan0048
Quotation request form for a Rototherm dial indicating thermometer.17th May 1934Box 156 \ 1  scan0049
Technical data sheet for Rototherm dial indicating thermometers.20th Dec 1933Box 156 \ 1  scan0050
Report from the National Physical Laboratory on the examination of a Fahrenheit scale thermometer.20th Dec 1933Box 156 \ 1  scan0051
Report from the National Physical Laboratory on the examination and calibration of a Fahrenheit scale thermometer.20th Dec 1933Box 156 \ 1  scan0052
The purchase of a Rototherm Thermometer from Corfield Ltd.4th Sep 1934Box 156 \ 1  scan0053
Requesting a study into bi-metal thermostats for hot spot control and a review of radiator designs.21th Nov 1934Box 156 \ 1  scan0054
Internal request to the Order Office to purchase the book 'Thermostats'.21th Nov 1934Box 156 \ 1  scan0055


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