| Description | Date | Identifier | |
| Technical notes on component issues including air escape holes, brake lubrication, ball studs, shock absorbers, and water pumps. | 1st Feb 1929 | Box 27 \ 1 Scan040 | |
| Lubrication methods for front pivots, axle control, and the design of drip plugs. | 1st Feb 1929 | Box 27 \ 1 Scan041 | |
| Pipe sealing methods and a comparison of different automatic chassis lubrication systems. | 1st Feb 1929 | Box 27 \ 1 Scan042 | |
| Letter discussing valve leakage, vacuum-feed systems, alternative engine-drive schemes, and chassis lubrication. | 2nd Feb 1929 | Box 27 \ 1 Scan043 | |
| Cover letter from Rolls Royce of America forwarding previously forgotten enclosures regarding central lubrication. | 2nd Feb 1929 | Box 27 \ 1 Scan044 | |
| The testing of special Luvax oil for the Bijur system. | 4th Feb 1929 | Box 27 \ 1 Scan045 | |
| Letter from Luvax Limited regarding a memorandum on oils for Luvax-Bijur lubricating systems and an offer of assistance. | 22th Jan 1929 | Box 27 \ 1 Scan046 | |
| Required properties for lubricating oils used in the Luvax-Bijur chassis system. | 2nd Feb 1929 | Box 27 \ 1 Scan047 | |
| Practicality of Bijur valves and restrictors for the SS and G4 central oiling system. | 2nd Feb 1929 | Box 27 \ 1 Scan048 | |
| The performance of foot-operated pumps for centralised lubrication systems. | 2nd Jan 1929 | Box 27 \ 1 Scan049 | |
| Comparative analysis of different pump types, including various Bijur models, detailing their pumping capacities, efficiency, and bore/stroke ratios. | 2nd Jan 1929 | Box 27 \ 1 Scan050 | |
| Design considerations and comparisons for various mechanical components. | 2nd Jan 1929 | Box 27 \ 1 Scan051 | |
| The use of a ball valve to improve pump efficiency by excluding air from the system. | 29th Jan 1929 | Box 27 \ 1 Scan052 | |
| Blueprint drawing for a piston for an oil pump. | 29th Jan 1929 | Box 27 \ 1 Scan053 | |
| Page with a purple ink stamp from the print room. | 15th Feb 1929 | Box 27 \ 1 Scan054 | |
| Letter to Tecalemit Ltd. regarding the unsuitability of their pump and parts for the sender's chassis. | 12th Mar 1929 | Box 27 \ 1 Scan055 | |
| Requesting an order of Wakefield's Castrol 'R' oil for delivery to France and for experimental use. | 13th Mar 1929 | Box 27 \ 1 Scan056 | |
| From Roy discussing lubrication systems and suitable oil grades with Price's Oil Company and Luvax Limited. | 13th Mar 1929 | Box 27 \ 1 Scan057 | |
| Various updates and proposals for the 'SS' Chassis, including chassis numbers X.3806, X.7770, and X.7420. | 6th Feb 1929 | Box 27 \ 1 Scan058 | |
| Testing and checking the main Bijur oiling system for leaks. | 6th Feb 1929 | Box 27 \ 1 Scan059 | |
| Letter proposing a visit to Mr. H.W. Pitt of Luvax Ltd. | 8th Feb 1929 | Box 27 \ 1 Scan060 | |
| Carburetion and cold starting tests for the SS chassis. | 2nd Feb 1929 | Box 27 \ 1 Scan061 | |
| Letter to Luvax Ltd. regarding sending 12 Banjos and fittings for testing on complete plugs. | 13th Feb 1929 | Box 27 \ 1 Scan062 | |
| Letter from the American branch to the UK branch discussing issues and attempts with one-shot spring lubrication systems. | 14th Feb 1929 | Box 27 \ 1 Scan063 | |
| Proposals and effects of different spring lubrication methods, including the Bijur system and accumulators. | 14th Feb 1929 | Box 27 \ 1 Scan064 | |
| Letter discussing a potential automatic lubrication system using an accumulator for road springs. | 14th Feb 1929 | Box 27 \ 1 Scan065 | |
| Developments and faults in the Bijur Automatic Lubricating Systems. | 14th Feb 1929 | Box 27 \ 1 Scan066 | |
| Merits of continuous versus intermittent automatic chassis lubrication systems. | 14th Feb 1929 | Box 27 \ 1 Scan067 | |
| Letter requesting further details on the Bijur central lubrication system. | 14th Feb 1929 | Box 27 \ 1 Scan068 | |
| Typed document discussing issues with air in an oil system, pressure maintenance, and potential leaks. | 14th Feb 1929 | Box 27 \ 1 Scan069 | |
| Oil viscosity, lubrication systems, and component failures like drip plugs and pumps. | 14th Feb 1929 | Box 27 \ 1 Scan070 | |
| Continued discussion on issues with banjo washer seals, leak tracing, and oil flow through drip plugs in various weather conditions. | 16th Feb 1929 | Box 27 \ 1 Scan071 | |
| Letter to Luvax Ltd. concerning the unsatisfactory calibration of supplied drip plugs for the Bijur system. | 16th Feb 1929 | Box 27 \ 1 Scan072 | |
| Modifications for oil conveyance and lever geometry in the 'SS' Servo Mechanism. | 14th Feb 1929 | Box 27 \ 1 Scan073 | |
| Letter from Luvax Limited regarding tests on banjo fittings and the suitability of piping for their lubrication system. | 14th Feb 1929 | Box 27 \ 1 Scan074 | |
| Letter from Bijur Lubricating Corp. to Luvax Ltd. discussing the use of hard versus soft tubing for chassis piping. | 4th Feb 1929 | Box 27 \ 1 Scan075 | |
| Letter from Bijur Lubricating Corp. to Luvax Ltd. discussing the use of hard versus soft tubing for chassis piping. | 4th Feb 1929 | Box 27 \ 1 Scan076 | |
| Comparing specifications for different dashboard pumps used in centralised chassis lubrication systems. | 15th Feb 1929 | Box 27 \ 1 Scan077 | |
| Chassis lubrication pump issues and proposed modifications. | 2nd Feb 1929 | Box 27 \ 1 Scan078 | |
| Head valve, pedal pressure, and comparing different design schemes. | 19th Feb 1929 | Box 27 \ 1 Scan079 | |
| Central lubrication system pressures, pump capacity, and mileage intervals. | 19th Feb 1929 | Box 27 \ 1 Scan080 | |
| Typed report on the performance and design of a pump system, including a hand-drawn diagram. | 19th Feb 1929 | Box 27 \ 1 Scan081 | |
| Oil system, discussing improvements to reduce viscosity loss and issues with valves, drip plugs, and pedal pressure. | 8th Feb 1929 | Box 27 \ 1 Scan082 | |
| Verifying the water pump on the 20 HP and 'SS' models will not use the Bijur oiling system, but a standard grease lubricator instead. | 8th Feb 1929 | Box 27 \ 1 Scan083 | |
| Internal memorandum discussing the pressure specifications of a spring-controlled valve. | 19th Feb 1929 | Box 27 \ 1 Scan084 | |
| Outlining problems with the Bijur Luvax lubrication system, focusing on design, manufacturing, and material hardness. | 19th Feb 1929 | Box 27 \ 1 Scan085 | |
| Revised list of Luvax drip plugs for central lubrication, showing quantities per chassis for 'SS' and India specifications. | 2nd Feb 1929 | Box 27 \ 1 Scan086 | |
| Letter to Luvax Ltd. regarding an order for two complete sets of drip plugs and their calibration requirements. | 20th Feb 1929 | Box 27 \ 1 Scan087 | |
| Design improvements for a drip plug and retaining cap to prevent dislodging. | 20th Feb 1929 | Box 27 \ 1 Scan088 | |
| Urgent request to return unreliable drip plugs from Messrs. Luvax and order new sets for car 21-EX. | 20th Feb 1929 | Box 27 \ 1 Scan089 | |
| Letter to C.C. Wakefield Ltd. regarding oil grade recommendations for a Bijur central lubrication system. | 21th Feb 1929 | Box 27 \ 1 Scan090 | |
| Continued page discussing oil pump operation in cold weather and oil types for shackle pins. | 21th Feb 1929 | Box 27 \ 1 Scan091 | |
| Issues with Bijur pumps on 20 HP and 'SS' cars and a proposed modification. | 21th Feb 1929 | Box 27 \ 1 Scan092 | |
| Internal request to order 6 sets of drip plugs for the 'SS' from supplier Messrs. Luvax. | 2nd Feb 1929 | Box 27 \ 1 Scan093 | |
| Technical memo discussing design modifications for a dashboard pump. | 22th Feb 1929 | Box 27 \ 1 Scan094 | |
| Letter from C.C. Wakefield & Co. regarding suitable Castrol oil grades for a Bijur Central Lubrication system. | 23th Feb 1929 | Box 27 \ 1 Scan095 | |
| Cover note for a list showing the designation of drip-plugs for 'SS' and India 1V chassis central lubrication systems. | 2nd Feb 1929 | Box 27 \ 1 Scan096 | |
| Delivery note from C.C. Wakefield & Co. Limited for Castrol oil samples sent to the Experimental Department. | 25th Feb 1929 | Box 27 \ 1 Scan097 | |
| Field report on car repairs and modifications, including issues with a drip plug and drilling. | 26th Feb 1929 | Box 27 \ 1 Scan098 | |
| Field service report on work completed on a Bijur system, with a request for parts and updates on vehicle status. | 1st Mar 1929 | Box 27 \ 1 Scan099 | |
| Request to provide a set of pivots with an air vessel scheme for centre point lubrication for the 19-EX car. | 4th Mar 1929 | Box 27 \ 1 Scan100 | |
| Revised list of Bijur drip plugs required for the 40/50 HP SS production chassis. | 4th Mar 1929 | Box 27 \ 1 Scan101 | |
| Modification for a new Bijur oil pump and a list of S.S. drip plugs. | 1st Mar 1929 | Box 27 \ 1 Scan102 | |
| Suggested modification and lubrication scheme for Phantom spring gaiters. | 2nd Mar 1929 | Box 27 \ 1 Scan103 | |
| Letter from Tecalemit regarding chassis lubrication components and the dispatch of samples and blueprints. | 4th Mar 1929 | Box 27 \ 1 Scan104 | |
| Continuation sheet of a letter from Tecalemit to Messrs. Rolls-Royce, Ltd. | 4th Mar 1929 | Box 27 \ 1 Scan105 | |
| Blueprint showing the arrangement of a grease plug adaptor assembly. | 8th Feb 1929 | Box 27 \ 1 Scan106 | |
| Drawing detailing the method for adapting a grease feed pipe to a lubricated point. | 8th Feb 1929 | Box 27 \ 1 Scan107 | |
| Blueprint of a straight connector assembly showing its components. | 4th Feb 1929 | Box 27 \ 1 Scan108 | |
| Blueprint of an elbow connector assembly. | 11th Jan 1929 | Box 27 \ 1 Scan109 | |
| Confirming receipt of a wire regarding travel arrangements and the subsequent reply. | 6th Mar 1929 | Box 27 \ 1 Scan110 | |
| Internal request to order 6 sets of drip plugs from Messrs. Luvax for the India chassis. | 1st Mar 1929 | Box 27 \ 1 Scan111 | |
| Urgent chaser letter to supplier C.A. Vandervell & Co. Ltd. regarding a delayed order for Meter Valves and Drip Plugs. | 7th Mar 1929 | Box 27 \ 1 Scan112 | |
| Page two of a letter to Messrs. C.A. Vandervell & Co. Ltd. regarding delivery information and order priority. | 7th Mar 1929 | Box 27 \ 1 Scan113 | |
| Letter from the American branch detailing test results for central lubrication system components like drip plugs. | 8th Mar 1929 | Box 27 \ 1 Scan114 | |
| Oil system performance, addressing variations in operation and the presence of air in the system. | 8th Mar 1929 | Box 27 \ 1 Scan115 | |
| Analysis of a Bijur lubrication system, discussing issues like entrapped air, leaks, and oil viscosity. | 8th Mar 1929 | Box 27 \ 1 Scan116 | |
| Technical memo discussing suitable oils, the Bijur lubrication system, drip plug failures, and banjo connections. | 8th Mar 1929 | Box 27 \ 1 Scan117 | |
| Oil pipe leak, back-pressure from banjo junctions, and oil lubrication in different temperatures. | 8th Mar 1929 | Box 27 \ 1 Scan118 | |
| Low-temperature flow test conducted on Mobiloil A and three types of Bijur oils. | 2nd Jun 1929 | Box 27 \ 1 Scan119 | |
| Technical blueprint drawing of a valve elbow adapter. | 2nd Jun 1929 | Box 27 \ 1 Scan120 | |
| Letter from Luvax Limited regarding the delayed delivery of experimental meter valves and arranging a meeting. | 8th Mar 1929 | Box 27 \ 1 Scan121 | |
| The collection of a parcel of Drip Plugs for the Experimental Department. | 9th Mar 1929 | Box 27 \ 1 Scan122 | |
| Requesting the addition of two S.1. drip plugs for the Front Anchorage lubrication on the 'SS' chassis. | 11th Mar 1929 | Box 27 \ 1 Scan123 | |
| Letter to Messrs. C.C. Wakefield regarding sending a sample of Luvax Bijur oil and upcoming performance tests of Castrola'R' oil. | 13th Mar 1929 | Box 27 \ 1 Scan124 | |
| Letter to Luvax Ltd. chasing a delayed delivery of Drip Plugs and requesting cases for testing. | 15th Mar 1929 | Box 27 \ 1 Scan125 | |
| Letter from C.C. Wakefield & Co. regarding samples of Luvax Bijur Oil and a test of Castrol 'R'. | 15th Mar 1929 | Box 27 \ 1 Scan126 | |
| Letter from Tecalemit regarding their central chassis lubrication systems and enclosed documents. | 19th Mar 1929 | Box 27 \ 1 Scan127 | |
| Letter to Messrs. Luvax Ltd. regarding a short shipment of S.2. drip plugs for 40/50 HP and 20 HP chassis. | 20th Mar 1929 | Box 27 \ 1 Scan128 | |
| Erection schedule for 'O' Series Chassis and a supply issue with Drip Plugs. | 20th Mar 1929 | Box 27 \ 1 Scan129 | |
| Sourcing of Motorine 'C' lubricant for the Luvax System via Messrs. Price. | 20th Mar 1929 | Box 27 \ 1 Scan130 | |
| Trial of 'Motorine C' and 'Castrol R' oils for central lubrication systems, particularly for cold weather performance. | 20th Mar 1929 | Box 27 \ 1 Scan131 | |
| Proposing a new central lubrication scheme for the rear axles of the 20 HP and S.S. models. | 20th Mar 1929 | Box 27 \ 1 Scan132 | |
| Letter to Luvax Ltd. regarding the manufacture, calibration, and design of drip plugs. | 21th Mar 1929 | Box 27 \ 1 Scan133 | |
| Letter from Luvax Limited regarding the supply of Meter Valves and order fulfillment. | 22th Mar 1929 | Box 27 \ 1 Scan134 | |
| Proposals for a central lubrication system, including a rear axle reservoir and the 20 HP front axle. | 22th Mar 1929 | Box 27 \ 1 Scan135 | |
| Request for a Standardisation Sheet for modifications to the 20 HP Chassis 'O' series. | 25th Mar 1929 | Box 27 \ 1 Scan136 | |
| Communication regarding the despatch and testing of a new Bijur Pump for car 22-EX. | 25th Mar 1929 | Box 27 \ 1 Scan137 | |
| Instructions regarding vehicle lubrication schedules for the pump, front axle, and rear axle. | 26th Mar 1929 | Box 27 \ 1 Scan138 | |
| Lubricant sample, MOTORINE 'A', submitted by the Prices Patent Candle Company for the Luvax Centralised Lubrication system. | 26th Mar 1929 | Box 27 \ 1 Scan139 | |
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