| Description | Date | Identifier | |
| Letter discussing issues and modifications related to central chassis lubrication on the front axle. | 31th Aug 1928 | Box 26 \ 5 Scan190 | |
| Lubrication issues and proposed solutions for the front axle, dampers, and connecting links. | 31th Aug 1928 | Box 26 \ 5 Scan191 | |
| The concluding page of a letter regarding a gland scheme for a damper arm. | 26th Jul 1926 | Box 26 \ 5 Scan192 | |
| Blueprint drawing for a 5/16 union nipple. | 26th Jul 1926 | Box 26 \ 5 Scan193 | |
| Outlining the use of drip plugs for centralised lubrication on various vehicle units. | 13th Sep 1928 | Box 26 \ 5 Scan194 | |
| Maintenance bulletin detailing the lubrication process for the front axle. | 15th Sep 1928 | Box 26 \ 5 Scan195 | |
| Page from a maintenance bulletin detailing the lubrication process for the front axle assembly. | 15th Sep 1928 | Box 26 \ 5 Scan196 | |
| Maintenance bulletin page detailing lubrication and component updates for front axles. | 15th Sep 1928 | Box 26 \ 5 Scan197 | |
| Technical drawing of an overflow pipe for an axle pivot, including dimensions and assembly instructions. | 15th Sep 1928 | Box 26 \ 5 Scan198 | |
| Cross-sectional diagrams illustrating the front axle pivot lubrication and overflow pipe. | 15th Sep 1928 | Box 26 \ 5 Scan199 | |
| Diagrams illustrating the front axle lubrication system, including the overflow pipe and axle pivot. | 18th Sep 1928 | Box 26 \ 5 Scan200 | |
| Viability and schedule for fitting centralised lubrication systems to the 'H' (Phantom) and 'O' series cars. | 18th Sep 1928 | Box 26 \ 5 Scan201 | |
| Blueprint for a 'KTB' Type 'K' Drip Plug, showing dimensions and a table of part numbers. | 10th Feb 1928 | Box 26 \ 5 Scan202 | |
| Blueprint for a 'KLA' Type 'K' drip plug. | 10th Feb 1928 | Box 26 \ 5 Scan203 | |
| Blueprint for a 'KTA' Type 'K' drip plug with a table of corresponding part numbers. | 10th Feb 1928 | Box 26 \ 5 Scan204 | |
| Blueprint of a Bowden control assembly. | 7th Dec 1938 | Box 26 \ 5 Scan205 | |
| The reverse side of a document with a purple 'Received' date stamp. | 28th Dec 1926 | Box 26 \ 5 Scan206 | |
| The unsatisfactory operation of the central lubrication pump on the Phantom Chassis 12-EX. | 1st Oct 1928 | Box 26 \ 5 Scan207 | |
| Centralised chassis lubrication for the pendulum lever. | 10th Oct 1928 | Box 26 \ 5 Scan208 | |
| Single-point lubrication system for the front axle. | 31th Oct 1928 | Box 26 \ 5 Scan209 | |
| Outlining two proposals for creating an oil reserve in the front axle pivot pins for a centralised chassis lubrication system. | 11th Nov 1928 | Box 26 \ 5 Scan210 | |
| Inquiring about the necessity of fitting air vessels to the rear axle for the centralised chassis lubrication system. | 9th Nov 1928 | Box 26 \ 5 Scan211 | |
| The requirement for air vessels on the rear axle for the centralised lubrication system. | 20th Nov 1928 | Box 26 \ 5 Scan212 | |
| Proposing a solution to eliminate road spring squeaks using felt pads and the central Bijur lubrication system. | 20th Nov 1928 | Box 26 \ 5 Scan213 | |
| On securing the 'SS' Bijur lubrication oil piping to prevent noise from vibration. | 28th Nov 1928 | Box 26 \ 5 Scan214 | |
| The accelerator pedal bearing lubrication and the plating of Bijur oil pipes for the 'SS' model. | 28th Nov 1928 | Box 26 \ 5 Scan215 | |
| Urgent request to issue instructions for a new oil scheme for the ball ends of six 'SS' cars. | 1st Dec 1928 | Box 26 \ 5 Scan216 | |
| Requesting particulars on a reported leak in the pump of the central lubrication scheme. | 18th Dec 1928 | Box 26 \ 5 Scan217 | |
| And discussing experiments for improving 'SS' front spring lubrication. | 20th Dec 1928 | Box 26 \ 5 Scan218 | |
| Continued note on the beneficial effect of the radius rod action on the spring during front brake application. | 15th Jan 1929 | Box 26 \ 5 Scan219 | |
| 'Bumper Test' and the requirements for testing a centre-point lubrication system. | 15th Jan 1929 | Box 26 \ 5 Scan220 | |
| Blueprint for a Type-K threaded nut from Bijur Lubricating Corp. | 15th Jul 1929 | Box 26 \ 5 Scan221 | |
| Drawing showing top and side views of a hexagonal fastener. | 17th Jan 1929 | Box 26 \ 5 Scan222 | |
| Cross-section diagram of a 'KTA' Drip Plug Assembly, Type 'K'. | 15th Jan 1929 | Box 26 \ 5 Scan223 | |
| Blueprint for a Drip Plug-KSR-Assembly Type 'K'. | 15th Jan 1929 | Box 26 \ 5 Scan224 | |
| Technical drawing for a 'KSA' type 'K' drip plug. | 11th Jul 1929 | Box 26 \ 5 Scan225 | |
| Aged and faded document with a prominent date stamp. | 17th Jan 1929 | Box 26 \ 5 Scan226 | |
| The ground clearance for jacking Goshawk cars with different tyre conditions. | 22th Mar 1922 | Box 26 \ 6 Scan001 | |
| Enquiry for axle clearance measurements for Goshawk Cars, in order to issue enquiries for jacks. | 10th Mar 1922 | Box 26 \ 6 Scan002 | |
| Requesting axle clearance measurements with tyres inflated and deflated for a Goshawk chassis, to enable enquiries for jacks. | 20th Mar 1922 | Box 26 \ 6 Scan003 | |
| Requesting axle clearance measurements for the Goshawk chassis to source suitable jacks. | 27th Mar 1922 | Box 26 \ 6 Scan004 | |
| Quotation from Michelin Tyre Co. Ltd. for the supply of 100 Michelin 2-ton jacks, noting a change in the product model. | 25th Aug 1922 | Box 26 \ 6 Scan005 | |
| Requirement for 100 Michelin 'F.R.E.D.' Jacks. | 24th Aug 1922 | Box 26 \ 6 Scan006 | |
| Recommendation for a Michelin 'Flirt' jack for the Goshawk-11 car. | 1st Sep 1922 | Box 26 \ 6 Scan007 | |
| Drawing showing the standard heights for jacks for a 20 HP chassis. | 25th Sep 1924 | Box 26 \ 6 Scan008 | |
| Unsuitability of existing jacks for 20-HP and 40/50 HP chassis when fitted with Balloon Tyres. | 25th Sep 1924 | Box 26 \ 6 Scan009 | |
| Investigation into suitable lifting jacks for 20 HP & 40/50 HP models fitted with balloon tyres. | 27th Sep 1924 | Box 26 \ 6 Scan010 | |
| Issues and required modifications for a Dunlop Jack and Balloon Tyres on the 20 HP car. | 23th Oct 1924 | Box 26 \ 6 Scan011 | |
| From ROY discussing the sourcing of jacks for the 20 HP Chassis after Michelin licensed its manufacturing to other firms. | 23th Apr 1928 | Box 26 \ 6 Scan012 | |
| Sourcing of a suitable wheel jack for the 20 HP car. | 25th Apr 1928 | Box 26 \ 6 Scan013 | |
| Specifications for a car jack and stating a preference for mechanical over hydraulic types. | 31th Jan 1929 | Box 26 \ 6 Scan014 | |
| Recommendation to adopt a new jack from Tangye for the 20 HP chassis, as the previous supplier, Michelin, has ceased manufacturing them. | 31th Jan 1929 | Box 26 \ 6 Scan015 | |
| Specifications and sourcing of hydraulic jacks for the Phantom II and 20/25 HP models. | 11th Feb 1930 | Box 26 \ 6 Scan016 | |
| The required dimensions for hydraulic jacks for the Phantom II vehicle, based on different wheel and tyre sizes. | 17th Feb 1930 | Box 26 \ 6 Scan017 | |
| Calculations for jack height requirements based on rear axle ground clearance for various wheel and tyre combinations. | 17th Feb 1930 | Box 26 \ 6 Scan018 | |
| Specifications required for a car jack, referencing the Dunlop Super D.L. model. | 17th Feb 1930 | Box 26 \ 6 Scan019 | |
| Requirements and specifications for sourcing hydraulic jacks. | 24th Feb 1930 | Box 26 \ 6 Scan020 | |
| Requirements and specifications for hydraulic car jacks, comparing them to existing systems. | 28th Feb 1930 | Box 26 \ 6 Scan021 | |
| Dimensional requirements and design challenges for hydraulic jacks. | 28th Feb 1930 | Box 26 \ 6 Scan022 | |
| Jacking procedures, the Dunlop Jack, and the reasons for not favouring the Jackall System. | 28th Feb 1930 | Box 26 \ 6 Scan023 | |
| Fitting, cost, and potential standardisation of D.W.S. jacks on 20/25 HP cars. | 21th Jul 1933 | Box 26 \ 6 Scan024 | |
| Instructing the build of an experimental 'O series' car with central oiling and a modified petrol tank. | 16th Jan 1929 | Box 27 \ 1 Scan001 | |
| From Hs. to CY. requesting feedback on the Bijur central lubrication system for the new S.S. and 20 HP models. | 16th Jan 1929 | Box 27 \ 1 Scan002 | |
| To G.W. Hancock regarding central oiling, carburation, and vacuum pump issues. | 16th Jan 1929 | Box 27 \ 1 Scan003 | |
| The lubrication method for the 'SS' cross steering tube and the delivery of oil to the pads. | 16th Jan 1929 | Box 27 \ 1 Scan004 | |
| Letter discussing oiling system failures and proposed tests on 20-HP and S.S. cars. | 18th Jan 1929 | Box 27 \ 1 Scan005 | |
| Concerns and testing requirements for a central oiling scheme and propeller shaft joints on a 20 HP car. | 18th Jan 1929 | Box 27 \ 1 Scan006 | |
| Letter discussing a 20 HP vehicle report and recommendations from Bijur representatives on pump operation and oil. | 21th Jan 1929 | Box 27 \ 1 Scan007 | |
| Letter discussing the status, delivery, and modifications for experimental cars 18-EX, 19-EX and the SS car. | 22th Jan 1929 | Box 27 \ 1 Scan008 | |
| Cover memo for a report on the central lubrication on 18-EX car after 10,000 miles. | 22th Jan 1929 | Box 27 \ 1 Scan009 | |
| 10,000-mile report on the central lubrication system and bearing conditions of chassis 18-EX. | 22th Jan 1929 | Box 27 \ 1 Scan010 | |
| Technical report detailing the lubrication and condition of various vehicle bearings and components. | 22th Jan 1929 | Box 27 \ 1 Scan011 | |
| Condition report on the lubrication and bearings of front and rear axle components. | 22th Jan 1929 | Box 27 \ 1 Scan012 | |
| Post-test findings on joint failures, lubrication system adjustments, and oil consumption. | 22th Jan 1929 | Box 27 \ 1 Scan013 | |
| Examination report on the condition of front and rear springs after dismantling. | 22th Jan 1929 | Box 27 \ 1 Scan014 | |
| Letter from Luvax Ltd. regarding oils for Luvax-Bijur lubricating systems and an experimental vehicle. | 22th Jan 1929 | Box 27 \ 1 Scan015 | |
| The required properties of oils for the Luvax-Bijur chassis lubricating system. | 22th Jan 1929 | Box 27 \ 1 Scan016 | |
| Attaching a report on the central lubrication of car 16-EX after 10,000 miles. | 22th Jan 1929 | Box 27 \ 1 Scan017 | |
| Letter from Luvax Ltd. concerning oils for Luvax-Bijur lubricating systems and chassis equipment. | 22th Jan 1929 | Box 27 \ 1 Scan018 | |
| Outlining the required properties of oils for the Luvax-Bijur chassis lubricating system. | 23th Jan 1929 | Box 27 \ 1 Scan019 | |
| Suggestion for a centralised oiling system for spring plates and the recommendation to patent the idea. | 23th Jan 1929 | Box 27 \ 1 Scan020 | |
| Test failures of a 20-HP model, detailing issues with the battery box and lubrication system, and proposing solutions. | 23th Jan 1929 | Box 27 \ 1 Scan021 | |
| Centralized chassis lubrication chart listing components and required oiling rates in drops per minute. | 24th Jan 1929 | Box 27 \ 1 Scan022 | |
| Progress report on the re-erection of an S.S. model, detailing challenges with the central lubrication system after an oil change. | 24th Jan 1929 | Box 27 \ 1 Scan023 | |
| Requesting action on schedule N.Sch.2756 regarding a grease gun for a model car destined for France. | 24th Jan 1929 | Box 27 \ 1 Scan024 | |
| Issues with the Bijur drip plug lubrication system and progress on vehicle chassis and body assembly. | 25th Jan 1929 | Box 27 \ 1 Scan025 | |
| Letter to Luvax Ltd. arranging a meeting to discuss a chassis fitted with a Central Lubrication System. | 28th Jan 1929 | Box 27 \ 1 Scan026 | |
| Diagram showing a cross-section and exploded view of a Bijur Drip Plug. | 19th Jan 1929 | Box 27 \ 1 Scan027 | |
| Insufficient bearing surface on front spring anchorage pins and wear on pendulum lever ball ends. | 30th Jan 1929 | Box 27 \ 1 Scan028 | |
| Suggestions for protecting various pipes and the problems associated with soldered joints. | 25th Jan 1929 | Box 27 \ 1 Scan029 | |
| Announcement of central oiling for 'SS' and 20 HP cars and the challenges of simultaneous delivery. | 30th Jan 1929 | Box 27 \ 1 Scan030 | |
| Implications of fitting central oiling to existing Phantom and 20 HP cars. | 30th Jan 1929 | Box 27 \ 1 Scan031 | |
| The feasibility of fitting central oiling systems to the 20 HP and Phantom car models. | 30th Jan 1929 | Box 27 \ 1 Scan032 | |
| Whether to modify existing 20 HP cars or focus on the introduction of new cars like the Phantom. | 31th Jan 1929 | Box 27 \ 1 Scan033 | |
| Order for various drip plugs from the supplier Messrs. Luvax. | 31th Jan 1929 | Box 27 \ 1 Scan034 | |
| Letter from the American branch to the English branch regarding central lubrication systems. | 1st Feb 1929 | Box 27 \ 1 Scan035 | |
| The performance of shackles, oil types, filters, and other components related to the Bijur lubrication system. | 1st Feb 1929 | Box 27 \ 1 Scan036 | |
| The performance, issues, and failures of a vehicle's lubrication system, including leaks, seasonal effects, and component failures. | 1st Feb 1929 | Box 27 \ 1 Scan037 | |
| Failures and solutions for issues with pipe nipples, brazing, and lubrication systems. | 1st Feb 1929 | Box 27 \ 1 Scan038 | |
| Preventing oil leakages and ensuring proper lubrication in the front axle assembly and associated components. | 1st Feb 1929 | Box 27 \ 1 Scan039 | |
| | | | |
