| Description | Date | Identifier | |
| Supplying two Delco Remy distributors for B.80 units, noting a modification is needed. | 27th Jan 1939 | Box 168 \ 3 img065 | |
| Requesting the return and replacement of four faulty Delco-Remy Distributor shaft assemblies due to being below Brinell limits. | 31th Jan 1939 | Box 168 \ 3 img066 | |
| Notification of a drawing revision for part F.CL.838 (Distributor) to incorporate a longer supporting shank. | 1st Dec 1939 | Box 168 \ 3 img067 | |
| Note on the ignition distributor for the Continental Bentley T, comparing it to other models. | 1st Feb 1939 | Box 168 \ 3 img068 | |
| Issues with Delco-Remy distributors on Wraith models and the recommendation to procure new stock. | 1st Feb 1939 | Box 168 \ 3 img069 | |
| Requesting the return of 5 rejected Delco Remy Distributor assemblies due to the cams being too soft. | 2nd Feb 1939 | Box 168 \ 3 img070 | |
| Issues and modifications for distributor head D4.403, including the rotor and contact lever. | 13th Apr 1939 | Box 168 \ 3 img071 | |
| The performance and modifications of distributor and governor components. | 13th Feb 1939 | Box 168 \ 3 img072 | |
| Use of an out-of-date distributor for the 1939 production and proposing endurance tests on a new Lucas distributor. | 16th Feb 1939 | Box 168 \ 3 img073 | |
| Shortcomings of the 1939 distributor and proposing a test for a new Lucas distributor. | 16th Feb 1939 | Box 168 \ 3 img074 | |
| Test report comparing the Delco Remy and the Rolls-Royce ignition distributors. | 14th Feb 1939 | Box 168 \ 3 img075 | |
| Distributor performance, focusing on spark variation between cylinders for Delco and RR models, and the resulting engine detonation and noise. | 14th Feb 1939 | Box 168 \ 3 img076 | |
| Conclusion of a report recommending further investigation into governor spark characteristics for the proposed Bentley V engine. | 14th Feb 1939 | Box 168 \ 3 img077 | |
| Blueprint graph comparing Delco Remy and R.R. ignition characteristics for a Bentley V engine. | 14th Feb 1939 | Box 168 \ 3 img079 | |
| Ignition performance chart showing governor characteristics for a Bentley V engine. | 14th Feb 1939 | Box 168 \ 3 img080 | |
| Blueprint graph showing the governor characteristics for a Bentley V engine. | 22th Feb 1939 | Box 168 \ 3 img081 | |
| Ignition governor characteristics and advance curves for various engines. | 22th Feb 1939 | Box 168 \ 3 img082 | |
| Proposal to adhere to an original specification for a B.V. characteristic. | 22th Feb 1939 | Box 168 \ 3 img083 | |
| Issues and developments related to ignition distributors. | 24th Feb 1939 | Box 168 \ 3 img084 | |
| Return of seven rejected Delco-Remy distributor shaft assemblies due to cam softness. | 24th Feb 1939 | Box 168 \ 3 img085 | |
| Advice note from Delco-Remy & Hyatt Ltd. for parts dispatched to Rolls Royce Ltd in Derby. | 15th Nov 1938 | Box 168 \ 3 img087 | |
| Dispatch of a dismantled Wraith Distributor for examination to Messrs. Delco Remy & Hyatt. | 28th Feb 1939 | Box 168 \ 3 img088 | |
| Letter to Delco Remy & Hyatt Ltd. about returning failed distributors and seeking advice on a solution for excessive wear. | 28th Feb 1939 | Box 168 \ 3 img089 | |
| Components for an eight-point distributor and distributor drive. | 1st Mar 1939 | Box 168 \ 3 img090 | |
| Listing attached blueprints for a Contact Finger Assembly, Cam Form, and Distributor and Governor Housing. | 1st Mar 1939 | Box 168 \ 3 img091 | |
| The governor spring data for the Bentley V distributor, following a request. | 2nd Mar 1939 | Box 168 \ 3 img092 | |
| Graph of the governor advance curve for a distributor, showing degrees of advance against distributor RPM. | 4th Feb 1938 | Box 168 \ 3 img094 | |
| Blueprints for the Distributor and Governor of the Bentley V - Continental 'Corniche'. | 3rd Mar 1939 | Box 168 \ 3 img095 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding excessive wear on a returned distributor shaft. | 2nd Mar 1939 | Box 168 \ 3 img096 | |
| Letter regarding the bushing of distributor housings and acceptable drive shaft play. | 2nd Mar 1939 | Box 168 \ 3 img097 | |
| Blueprint of a Distributor Shaft Assembly. | 17th Jun 1938 | Box 168 \ 3 img098 | |
| Assembly instructions for a B.60 No.1 cast iron unit following an endurance inspection. | 4th Mar 1939 | Box 168 \ 3 img099 | |
| List of tasks and modifications for an engine, including fitting parts and addressing leaks. | 4th Mar 1939 | Box 168 \ 3 img100 | |
| Assembly instructions for a B.80 No. 1 Unit engine to be fitted to a chassis. | 6th Mar 1939 | Box 168 \ 3 img101 | |
| Temporary solution for oil leaks from tappet doors. | 6th Mar 1939 | Box 168 \ 3 img102 | |
| Blueprints for a new spring detail on the Bentley V. Ignition Distributor and Governor. | 6th Sep 1939 | Box 168 \ 3 img103 | |
| Letter to Delco-Remy & Hyatt Ltd. regarding excessive wear on a 656RB type distributor. | 7th Mar 1939 | Box 168 \ 3 img104 | |
| Revised governor characteristics and ordering distributors for Bentley 40 engines. | 7th Mar 1939 | Box 168 \ 3 img105 | |
| Modifications to the Phantom III chassis ignition distributor to prevent failures. | 7th Mar 1939 | Box 168 \ 3 img106 | |
| Modifications and fault rectifications for a B.V. No.1 Continental unit. | 9th Mar 1939 | Box 168 \ 3 img107 | |
| Request to obtain B.60 Ignition Distributor drive shafts and governors from J. Lucas Ltd. | 9th Mar 1939 | Box 168 \ 3 img108 | |
| List of required modifications and checks for Bentley S No. 19 Unit prior to installation in a Paulin chassis. | 11th Mar 1939 | Box 168 \ 3 img109 | |
| List of required modifications for various components on page 2. | 11th Mar 1939 | Box 168 \ 3 img110 | |
| Modifications and fault rectifications required for a Bentley V No.1 Continental unit. | 11th Mar 1939 | Box 168 \ 3 img111 | |
| Modifications to the Distributor & Governor for the Bentley V, enclosing blueprints for a Driving Plate and Spring Ring. | 13th Mar 1939 | Box 168 \ 3 img112 | |
| Request to manufacture parts for an ignition distributor withdrawing tool for a cam. | 13th Mar 1939 | Box 168 \ 3 img113 | |
| Wear on the Delco distributor spindle for the Wraith model, suggesting an increase in clearance for the spherical collar. | 13th Mar 1939 | Box 168 \ 3 img114 | |
| Letter to Delco Remy & Hyatt Ltd. concerning a component failure analysis and requesting handbooks. | 14th Mar 1939 | Box 168 \ 3 img115 | |
| Covering order for the repair of a damaged Delco Distributor for a Wraith. | 13th Mar 1939 | Box 168 \ 3 img116 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding a coupling drive failure in a Delco Distributor and a request for handbooks. | 16th Mar 1939 | Box 168 \ 3 img117 | |
| Cost memo for a Delco-Remy Distributor and an estimated cost for another part. | 17th Mar 1939 | Box 168 \ 3 img118 | |
| The return of a B.80 No.2 unit for dismantling due to high oil temperature and outlining required modifications. | 18th Mar 1939 | Box 168 \ 3 img119 | |
| Letter to Messrs. Delco Remy & Hyatt regarding the forwarding of two handbooks. | 21th Mar 1939 | Box 168 \ 3 img120 | |
| Requesting the production of a new ignition distributor cam for the Wraith model for experimentation. | 21th Mar 1939 | Box 168 \ 3 img121 | |
| The necessary modifications and repairs for a returned W.III No.9 unit. | 22th Mar 1939 | Box 168 \ 3 img122 | |
| Instructions for a DW.949 Distributor Cam, detailing its design, hardening, and specifications. | 22th Mar 1939 | Box 168 \ 3 img123 | |
| Governor spring data specifications for the Continental Bentley distributor. | 30th Mar 1939 | Box 168 \ 3 img124 | |
| Cracking in Bentley V cylinder heads and the urgent request for new blocks and heads made from alternative materials. | 1st Apr 1939 | Box 168 \ 3 img125 | |
| List of required work and parts for a returned B.60 No.3 unit. | 3rd Apr 1939 | Box 168 \ 3 img126 | |
| Letter to Delco-Remy & Hyatt Ltd requesting a vacuumatic type distributor for testing on a Wraith engine. | 5th Apr 1939 | Box 168 \ 3 img127 | |
| Requesting the procurement of three rotors from Messrs. Delco Remy & Hyatt for a distributor. | 6th Apr 1939 | Box 168 \ 3 img128 | |
| Letter from a supplier discussing the fitting of a vacuumatic distributor to a Wraith engine. | 12th Apr 1939 | Box 168 \ 3 img129 | |
| Blueprint of a mechanical component with dimensional annotations. | 12th Apr 1939 | Box 168 \ 3 img130 | |
| Blueprint showing a side view of a mechanical component with dimensional annotations. | 5th Oct 1929 | Box 168 \ 3 img131 | |
| Blueprint with front and side elevations of a distributor cap, featuring dimensions and a dial. | 5th Oct 1929 | Box 168 \ 3 img132 | |
| Blueprint for a C.W. Ignition Distributor. | 7th May 1938 | Box 168 \ 3 img133 | |
| Electrical specification document for distributors related to production testing. | 13th Apr 1939 | Box 168 \ 3 img134 | |
| Production, inspection, adjustment, and testing procedure for a distributor and contact breaker. | 13th Apr 1939 | Box 168 \ 3 img135 | |
| Continuation of a specification document detailing test procedures for distributor and governor components. | 13th Apr 1939 | Box 168 \ 3 img136 | |
| Ignition timing advance curves for the Wraith and Bentley V models. | 13th Apr 1939 | Box 168 \ 3 img137 | |
| Letter to Delco Remy & Hyatt Ltd requesting a sample vacuumatic distributor for testing and comparison. | 13th Apr 1939 | Box 168 \ 3 img138 | |
| Proposal to modify an eight-cylinder distributor for use on a four-cylinder mockup engine. | 13th Apr 1939 | Box 168 \ 3 img139 | |
| Potential issue with the distributor's contact lever spring and a recommended modification. | 15th Apr 1939 | Box 168 \ 3 img140 | |
| Summary comparing the R.R. distributor with the Delco distributor for the Wraith model, outlining faults and performance issues. | 15th Apr 1939 | Box 168 \ 3 img141 | |
| Relative merits of the R.R. and Delco distributors for the Wraith C series. | 15th Apr 1939 | Box 168 \ 3 img142 | |
| Inspection and reporting instructions for a dismantled Bentley V No.6 unit following a 20-hour endurance test. | 17th Apr 1939 | Box 168 \ 3 img143 | |
| Assembly specification for rebuilding a B.Y. No.6 unit as a Wraith Ripple No.2. | 17th Apr 1939 | Box 168 \ 3 img144 | |
| Instruction to issue the electrical specification for distributors to works officials for testing. | 19th Apr 1939 | Box 168 \ 3 img145 | |
| Selection of an R.R. distributor, comparing designs and considering cost implications. | 19th Apr 1939 | Box 168 \ 3 img146 | |
| Issuance of new blueprints for ignition governor springs for the Bentley V 'Corniche' model. | 19th Apr 1939 | Box 168 \ 3 img147 | |
| Oscillograph work for the Wraith ignition system. | 19th Apr 1939 | Box 168 \ 3 img148 | |
| Oscillograph work and measurements comparing the ignition systems of the Wraith and Delco-Remy distributors. | 19th Apr 1939 | Box 168 \ 3 img149 | |
| Analysis of ignition system performance comparing distributor waveforms, voltage, misfiring, and spark energy. | 19th Apr 1939 | Box 168 \ 3 img150 | |
| Analysis of primary current and voltage curves from an experimental commutator distributor. | 5th Apr 1939 | Box 168 \ 3 img151 | |
| Blueprint comparing primary current curves for Wraith ignition systems from Rolls-Royce and Delco-Remy distributors. | 5th Apr 1939 | Box 168 \ 3 img152 | |
| Blueprint showing primary voltage curves for the Wraith ignition system. | 5th Apr 1939 | Box 168 \ 3 img153 | |
| Comparison of secondary ignition voltage curves for the Wraith model, using both Rolls Royce and Delco-Remy distributors. | 5th Apr 1939 | Box 168 \ 3 img154 | |
| Graphs showing commutator distributor primary current curves at different RPMs with advanced and retarded brush timing. | 5th Apr 1938 | Box 168 \ 3 img155 | |
| Graph of commutator distributor primary voltage curves at different RPMs and brush settings. | 5th Apr 1939 | Box 168 \ 3 img156 | |
| Preliminary report on the bench testing of a B.R. Distributor incorporating a Lucas Governor D.514. | 20th Apr 1939 | Box 168 \ 3 img157 | |
| Analysis and recommendations for the distributor, focusing on the lubricating pad, contact plate, and governor mechanism. | 20th Apr 1939 | Box 168 \ 3 img158 | |
| List of test findings and recommendations regarding oil leakage, terminal robustness, spring tension, and lubricator positioning. | 20th Apr 1939 | Box 168 \ 3 img159 | |
| Blueprint graph of a governor advance curve for a DCD 838 distributor with spring specifications. | 24th Mar 1939 | Box 168 \ 3 img160 | |
| Blueprint graph of a governor advance curve for a DCD.838 distributor, including spring particulars. | 25th Mar 1939 | Box 168 \ 3 img161 | |
| Graph showing the governor advance characteristics of a DCD 838 distributor with different spring configurations. | 25th Mar 1931 | Box 168 \ 3 img162 | |
| Despatch of alloy cast iron cylinder blocks and heads from the iron foundry. | 21th Apr 1939 | Box 168 \ 3 img163 | |
| The application of twin contact breakers to an ignition distributor for Wraith & Bentley V models. | 22th Apr 1939 | Box 168 \ 3 img164 | |
| Updates to the specification for the W.III No. 10 Unit for the Continental Bentley. | 22th Apr 1939 | Box 168 \ 3 img165 | |
| Request for samples of 'Diakon' and 'Erinoid' compression moulding powders and associated technical information. | 24th Apr 1939 | Box 168 \ 3 img166 | |
| Complaint report W.332 regarding a loose rivet on the contact finger of part WXA-46 causing high resistance. | 24th Apr 1939 | Box 168 \ 3 img167 | |
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