| Description | Date | Identifier | |
| Page two of a document discussing the effect of a small temperature difference on comfort. | 18th Aug 1910 | Box 75 \ 4 scan0026 | |
| Test report on modifying floorboards and bonnet to manage engine heat and airflow. | 19th Dec 1911 | Box 75 \ 4 scan0027 | |
| The testing of double floor boards and their temperature. | 29th Dec 1911 | Box 75 \ 4 scan0028 | |
| Temperature tests with different dashboard and floorboard configurations. | 21th Dec 1911 | Box 75 \ 4 scan0029 | |
| Adopting a standard design for a ventilator stop. | 6th Oct 1911 | Box 75 \ 4 scan0030 | |
| Replying to an attached document, covering floorboard ventilation, pneumatic suspension, and carburetter adjustment. | 6th Oct 1911 | Box 75 \ 4 scan0031 | |
| Instruction regarding the construction of a double floorboard with a space for ventilation. | 23th Oct 1911 | Box 75 \ 4 scan0032 | |
| Instructions for ventilating floorboards on Chassis 1714, involving a double floorboard design with a space between. | 24th Oct 1911 | Box 75 \ 4 scan0033 | |
| Request to consider various types of ventilators and submit drawings for cooling the front seats in summer. | 14th Nov 1911 | Box 75 \ 4 scan0034 | |
| Suggestion for a ventilator opening where the dashboard joins the windscreen. | 17th Nov 1911 | Box 75 \ 4 scan0035 | |
| Requesting an enquiry into fitting gas-tight floor-boards to every chassis. | 1st Nov 1911 | Box 75 \ 4 scan0036 | |
| Meeting minute discussing the feasibility and testing of different floor board designs. | 8th Dec 1911 | Box 75 \ 4 scan0037 | |
| Clarifying a misunderstanding regarding the practicability of a scheme for gas-tight floor boards. | 8th Dec 1911 | Box 75 \ 4 scan0038 | |
| Copy of Minute 3 from the 69th Technical Committee meeting discussing ventilator designs. | 19th Dec 1911 | Box 75 \ 4 scan0039 | |
| Committee agreement on incorporating a change into Mr Spinney's design and abandoning the scheme for double floor boards. | 19th Oct 1911 | Box 75 \ 4 scan0040 | |
| Typed document page discussing a solution to a difficulty concerning a bonnet. | 20th Dec 1911 | Box 75 \ 4 scan0041 | |
| Meeting minute discussing methods to reduce heat transfer from the engine to the front seats. | 20th Dec 1911 | Box 75 \ 4 scan0042 | |
| Minutes of the 84th Meeting, concerning the feasibility of fitting gas-tight floorboards. | 30th Dec 1911 | Box 75 \ 4 scan0043 | |
| Meeting minute regarding the heating of floorboards in the driver's seat. | 4th Jan 1912 | Box 75 \ 4 scan0044 | |
| Letter to M. S. Napier inquiring about a patent for a special ventilation system seen at the Olympia Show. | 9th Jan 1912 | Box 75 \ 4 scan0045 | |
| Letter to S. Napier Esq. requesting that he provide the company with required information. | 9th Jan 1912 | Box 75 \ 4 scan0046 | |
| Letter from D. Napier & Son to Rolls-Royce regarding the bodywork and a ventilating device on a car exhibited at the Olympia Show. | 11th Jan 1912 | Box 75 \ 4 scan0047 | |
| To Mr Spinney relaying Mr Johnson's congratulations on a scheme concerning hot air from the bonnet and front seat heating. | 12th Jan 1912 | Box 75 \ 4 scan0048 | |
| Letter to Messrs D. Napier & Son Ltd. acknowledging receipt of information regarding an Olympia Show Chassis. | 12th Jan 1912 | Box 75 \ 4 scan0049 | |
| Enquiry to Mulliner Ltd. regarding patents for a car body ventilation system seen at the Olympia Show. | 2nd Feb 1912 | Box 75 \ 4 scan0050 | |
| Page two of a letter to Messrs Mulliner Ltd. | 2nd Feb 1912 | Box 75 \ 4 scan0051 | |
| Letter to Messrs S. F. Edge Ltd. regarding insulated bodies. | 9th Feb 1912 | Box 75 \ 4 scan0052 | |
| Requesting a scheme to overcome the heating of the front seats on the 'Sluggard Type of Car'. | 2nd Mar 1912 | Box 75 \ 4 scan0053 | |
| Ventilators in dashboard open & closed with new scheme of louvres in engine guard. | 4th Apr 1912 | Box 75 \ 4 scan0054 | |
| Committee meeting discussing methods to prevent dust from entering the carburetter. | 21th Mar 1912 | Box 75 \ 4 scan0055 | |
| Results of testing a new front floor board isolation scheme. | 21th Mar 1912 | Box 75 \ 4 scan0056 | |
| Difficulties with a scheme and the option of altering existing cars in response to complaints. | 23th Mar 1912 | Box 75 \ 4 scan0057 | |
| Design of engine guards and an experimental isolation scheme on London-Edinburgh type cars. | 23th Mar 1912 | Box 75 \ 4 scan0058 | |
| Cooling issue with 'slats' under the bonnet, delaying the dispatch of London-Edinburgh cars. | 6th Feb 1912 | Box 75 \ 4 scan0059 | |
| Successful testing of isolated front floorboards and the design of ventilated undershields. | 13th Apr 1912 | Box 75 \ 4 scan0060 | |
| Fitting of new engine guards to the London-Edinburgh type of car and related manufacturing challenges. | 13th Apr 1912 | Box 75 \ 4 scan0061 | |
| The implementation of new designs for the last 46 chassis of the 1900 series to avoid scrap. | 14th Dec 1911 | Box 75 \ 4 scan0062 | |
| Isolation of front floorboards. | 14th Dec 1911 | Box 75 \ 4 scan0063 | |
| Temperature test results for a 1948 h & E type vehicle under various conditions. | 17th Aug 1911 | Box 75 \ 4 scan0064 | |
| Data table of temperature and time readings from a series of cooling system tests under different configurations. | 17th Aug 1911 | Box 75 \ 4 scan0065 | |
| Record of temperature readings taken during a hill climb test of an E-type chassis from Macclesfield to the Cat & Fiddle. | 8th Sep 1911 | Box 75 \ 4 scan0066 | |
| Test log sheet recording water temperature against atmospheric temperature under different driving conditions. | 8th Sep 1911 | Box 75 \ 4 scan0067 | |
| Results from temperature tests conducted under the floorboards on various chassis, including a test on Ashbourne Hill. | 10th Aug 1908 | Box 75 \ 4 scan0068 | |
| Experiment log recording the temperature of oil in a crankchamber at various times and engine speeds. | 19th Apr 1912 | Box 75 \ 4 scan0069 | |
| Minutes of a meeting discussing the testing and standardization of new engine guards. | 19th Apr 1912 | Box 75 \ 4 scan0070 | |
| Log of temperature and performance data taken during a vehicle test run, noting conditions like inclines and crosswinds. | 2nd May 1912 | Box 75 \ 4 scan0071 | |
| Temperature test results comparing performance with a filled and unfilled dash during a hill climb. | 2nd May 1912 | Box 75 \ 4 scan0072 | |
| Temperature tests on Chassis 1948 concerning the isolation of floorboards. | 3rd May 1912 | Box 75 \ 4 scan0073 | |
| Further tests on a ventilation scheme. | 14th May 1912 | Box 75 \ 4 scan0074 | |
| Log of temperature readings from a series of vehicle ventilation tests. | 20th May 1912 | Box 75 \ 4 scan0075 | |
| Ventilation scheme and the fitment of louvred side guards on different car models. | 20th May 1912 | Box 75 \ 4 scan0076 | |
| Test report on water and floorboard temperatures with an enclosed engine. | 11th Jun 1912 | Box 75 \ 4 scan0077 | |
| Temperature readings for atmosphere, water, and floorboards under different test conditions. | 11th Jun 1912 | Box 75 \ 4 scan0078 | |
| Tabulated temperature readings for atmospheric, water, and floorboard conditions under two different test setups. | 11th Jun 1912 | Box 75 \ 4 scan0079 | |
| Temperature readings for atmosphere, water, and floorboards related to a radiator test. | 3rd May 1912 | Box 75 \ 4 scan0080 | |
| Cause of unpleasantly warm floorboards in a chassis due to hot air from the engine. | 3rd May 1912 | Box 75 \ 4 scan0081 | |
| Departmental memo discussing the efficiency of a ventilation scheme and tests on chassis 1948. | 16th Apr 1912 | Box 75 \ 4 scan0082 | |
| Ventilation scheme detailing tests carried out on chassis 1948. | 9th May 1912 | Box 75 \ 4 scan0083 | |
| Description of the methodology for temperature testing and the unreliability of floorboard temperature readings. | 9th May 1912 | Box 75 \ 4 scan0084 | |
| Tests regarding bonnet ventilation to reduce water temperature and keep floorboards cool. | 9th May 1912 | Box 75 \ 4 scan0085 | |
| Underbody airflow and ventilation to prevent exhaust fumes and road dirt from entering the vehicle. | 9th May 1912 | Box 75 \ 4 scan0086 | |
| Log of temperature readings for atmosphere, water, and floorboards. | 9th May 1912 | Box 75 \ 4 scan0087 | |
| Log of ventilation test results under different engine bay conditions. | 17th May 1912 | Box 75 \ 4 scan0088 | |
| From F.H. Royce to Claude Johnson regarding floorboard conditions and water overheating in car 1649. | 17th May 1912 | Box 75 \ 4 scan0089 | |
| Testing and decision on standardizing the isolation of front floorboards. | 20th May 1912 | Box 75 \ 4 scan0090 | |
| Summary of tests on dashboard modifications affecting vehicle temperature and interior smells. | 1st Jan 1926 | Box 75 \ 4 scan0091 | |
| Departmental memo regarding a ventilation scheme and the issue of heat and fumes from the floorboards of car 1649. | 6th Jun 1912 | Box 75 \ 4 scan0092 | |
| Departmental memo detailing test results and issues with a new Bosch magneto, R.B.F. ball bearings, air pump, and cut out mechanism. | 18th Mar 1912 | Box 75 \ 4 scan0093 | |
| Departmental memo detailing issues and potential modifications for various vehicle components. | 18th Mar 1912 | Box 75 \ 4 scan0094 | |
| Departmental memo detailing issues with the dynamo drive, lamp failures, and frame strut performance. | 18th Mar 1912 | Box 75 \ 4 scan0095 | |
| Departmental memo discussing the effects of body and frame rigidity on car springing performance during testing. | 18th Mar 1912 | Box 75 \ 4 scan0096 | |
| Scheme for ventilating the front floorboards to reduce underfloor pressure and prevent fumes from entering the cabin. | 10th Jun 1912 | Box 75 \ 4 scan0097 | |
| Typed document page, numbered as page 2, with a partial sentence. | 17th Jun 1912 | Box 75 \ 4 scan0098 | |
| The results of tests concerning the heating of floorboards on chassis 1948. | 17th Jun 1912 | Box 75 \ 4 scan0099 | |
| Temperature comparison tests between two dashboard configurations with different louvred guards. | 14th Mar 1912 | Box 75 \ 4 scan0100 | |
| Cover note sending a copy of Mr. Royce's note concerning the heating of floorboards. | 21th Jun 1912 | Box 75 \ 4 scan0101 | |
| Mr. Royce's opinion on the ventilation of floorboards and dashboards. | 22th Jun 1912 | Box 75 \ 4 scan0102 | |
| Cover letter to Mr Spinney enclosing copies of minutes from T.C. meetings. | 28th Jun 1912 | Box 75 \ 4 scan0103 | |
| Report card on body ventilation tests and their results. | 25th Jun 1912 | Box 75 \ 4 scan0104 | |
| Results of ventilation tests on a totally enclosed Limousine. | 1st Jul 1912 | Box 75 \ 4 scan0105 | |
| Temperature readings taken inside a vehicle body during a test, with accompanying observations. | 1st Jul 1912 | Box 75 \ 4 scan0106 | |
| Test report on vehicle temperatures and issues under specific operating conditions. | 1st Jul 1912 | Box 75 \ 4 scan0107 | |
| Test results documenting various temperature readings within a vehicle under specific conditions. | 1st Jul 1912 | Box 75 \ 4 scan0108 | |
| Test results for temperature readings with specific dashboard, guard, and window settings, noting a bad draught. | 1st Jul 1912 | Box 75 \ 4 scan0109 | |
| Test results for temperature readings under specific vehicle ventilation conditions, noting a bad draught. | 1st Jul 1912 | Box 75 \ 4 scan0110 | |
| Test report recording vehicle temperatures and airflow readings under specific test conditions. | 1st Jul 1912 | Box 75 \ 4 scan0111 | |
| Test results for temperatures with specific dashboard, guard, and ventilator configurations. | 1st Jul 1912 | Box 75 \ 4 scan0112 | |
| General summary of tests on water temperature and body ventilation. | 1st Jul 1912 | Box 75 \ 4 scan0113 | |
| The effect of dashboard ventilators on interior temperature and smells from hot oil. | 1st Jul 1912 | Box 75 \ 4 scan0114 | |
| Log of temperature readings from a vehicle test with ventilators and windows closed. | 1st Jul 1912 | Box 75 \ 4 scan0115 | |
| Test results for temperature and performance with a filled-in dashboard, closed ventilators, and open windows. | 1st Jul 1912 | Box 75 \ 4 scan0116 | |
| Temperature readings from a vehicle test with specific dashboard and window configurations. | 1st Jul 1912 | Box 75 \ 4 scan0117 | |
| Test results recording temperatures and timings under specific dashboard and window configurations. | 1st Jul 1912 | Box 75 \ 4 scan0118 | |
| Test results for vehicle temperatures with specific dashboard, ventilator, and window configurations. | 1st Jul 1912 | Box 75 \ 4 scan0119 | |
| Temperature readings under specific vehicle configuration and operating conditions. | 1st Jul 1912 | Box 75 \ 4 scan0120 | |
| Vehicle ventilation and temperature test with dashboard modifications. | 3rd Jul 1912 | Box 75 \ 4 scan0121 | |
| Departmental memo to Mr Royce regarding tests on a ventilation scheme, including dashboard and engine guard modifications. | 3rd Jul 1912 | Box 75 \ 4 scan0122 | |
| Page 2 of a departmental memo regarding the testing of a scheme. | 22th May 1912 | Box 75 \ 4 scan0123 | |
| Ventilation tests on a 1926 enclosed Limousine, detailing temperature readings under full load conditions. | 22th Feb 1928 | Box 75 \ 4 scan0124 | |
| Test report detailing vehicle temperature and draught conditions under different ventilation configurations. | 22th Feb 1928 | Box 75 \ 4 scan0125 | |
| | | | |
