| Description | Date | Identifier | |
| New details for the 'Ripplet' Section 7000, Frame & Fittings, including a parts list. | 12th Apr 1940 | Box 113 \ 5 scan0129 | |
| New parts and distributing blueprints for Section 7000, Frame & Fittings. | 12th Apr 1940 | Box 113 \ 5 scan0130 | |
| Instructions for a modified front engine mounting on a Ripplet Chassis, detailing new drawings and replacement parts. | 13th Apr 1940 | Box 113 \ 5 scan0131 | |
| Instructions concerning the spare wheel carrier and frame fittings for the LH. Senior Range. | 15th Apr 1940 | Box 113 \ 5 scan0132 | |
| List of alterations and additions to the Frame & Fittings and Rear Springs & Fittings sections. | 10th Apr 1940 | Box 113 \ 5 scan0133 | |
| Continuation sheet listing deleted and added parts for a front engine mounting assembly. | 10th Apr 1940 | Box 113 \ 5 scan0134 | |
| Change note regarding the addition of a 'Front Sheet Metal Member' and updates to engine mounting components. | 19th Apr 1940 | Box 113 \ 5 scan0135 | |
| Chasing an assembly drawing for the Rippletto frame required by John Thompson Motor Pressings Ltd. | 19th Apr 1940 | Box 113 \ 5 scan0136 | |
| Parts lists and instructions for the fitment of Gordon Armstrong rear shock dampers. | 19th Apr 1940 | Box 113 \ 5 scan0137 | |
| Requesting a drawing to be made for a 'Rippletto Frame'. | 22th Apr 1940 | Box 113 \ 5 scan0138 | |
| Parts list confirming a telephone conversation regarding the Front Sheet Metal Crossmember for an LH Silver Phantom chassis. | 23th Apr 1940 | Box 113 \ 5 scan0139 | |
| Modifications and parts list for a L.H. Silver Phantom frame and fittings. | 8th May 1940 | Box 113 \ 5 scan0140 | |
| Instructions for modifying an existing Silver Wraith frame, specifying that only holes are to be changed, not the shape of the pressings. | 1st Sep 1940 | Box 113 \ 5 scan0141 | |
| Modified battery support for the Bentley V and Silver Phantom models, listing new and replaced parts. | 1st Sep 1940 | Box 113 \ 5 scan0142 | |
| Confirming the issue of two blueprints for drilling the assembled frame of an L.H. Silver Phantom chassis. | 23th May 1940 | Box 113 \ 5 scan0143 | |
| Article on unit frame and body construction, comparing monocoque designs to separate body and chassis frames. | 30th Aug 1940 | Box 113 \ 5 scan0144 | |
| Comment on Mr. Sherwin's article regarding the use of light gauge material and frame stiffness targets for a satisfactory ride. | 30th Aug 1940 | Box 113 \ 5 scan0145 | |
| The 'Myth' frame design, comparing conventional and monocoque construction options. | 29th Oct 1940 | Box 113 \ 5 scan0146 | |
| Future car body design, comparing monocoque and separate frame constructions, and referencing American models. | 29th Oct 1940 | Box 113 \ 5 scan0147 | |
| Technical note on improving the torsional rigidity of eight-cylinder frames using welded construction. | 31th Oct 1940 | Box 113 \ 5 scan0148 | |
| Improving frame rigidity with a new welded frame and a standardised cast aluminium dash for soft top cars. | 31th Oct 1940 | Box 113 \ 5 scan0149 | |
| Memo discussing and comparing fan drive ratios for various engines and competitor vehicles. | 31th Oct 1940 | Box 113 \ 5 scan0150 | |
| Torsional rigidity and front-end shake of eight-cylinder frames, proposing solutions like all-welded construction. | 31th Oct 1940 | Box 113 \ 5 scan0151 | |
| And comparing various fan drive ratios for different engines and models. | 31th Oct 1940 | Box 113 \ 5 scan0152 | |
| Improvements to the torsional rigidity of eight-cylinder frames by reverting to a welded construction. | 31th Oct 1940 | Box 113 \ 5 scan0153 | |
| Design scheme for front bumpers, fog lamp brackets, and the associated requirement for side jacking. | 14th Dec 1940 | Box 113 \ 5 scan0154 | |
| Letter to a supplier requesting sets of clutch springs and discs. | 12th Nov 1941 | Box 113 \ 5 scan0155 | |
| Reporting a broken frame on a Fordson Van (HRA. 107) at 17,500 miles. | 7th Dec 1942 | Box 113 \ 5 scan0156 | |
| Close-up photograph of a vehicle's rear leaf spring suspension and spare tyre carrier. | 7th Dec 1942 | Box 113 \ 5 scan0157 | |
| Close-up photograph of vehicle undercarriage components, including part of the chassis and suspension. | 22th Dec 1943 | Box 113 \ 5 scan0158 | |
| Chassis frame and front pan specifications and compatibility. | 22th Dec 1943 | Box 113 \ 5 scan0159 | |
| The production of experimental chassis frames for the Silver Ripple model. | 8th Feb 1944 | Box 113 \ 5 scan0160 | |
| The production of 'Silver Ripple' frames, including tooling for post-war manufacturing. | 26th Feb 1944 | Box 113 \ 5 scan0161 | |
| Production of 'Silver Ripple' frames and the need for associated tooling. | 26th Feb 1944 | Box 113 \ 5 scan0162 | |
| Examination report on five chassis frames received from Shardlow, detailing their specifications and suitability. | 29th Feb 1944 | Box 113 \ 5 scan0163 | |
| Production of two Litra frames with John Thompson's, focusing on material thickness and component manufacturing. | 10th Mar 1944 | Box 113 \ 5 scan0164 | |
| Experimental frames from John Thompson's, their specifications and a proposal for modification. | 17th Oct 1928 | Box 113 \ 5 scan0165 | |
| Despatch of three prints for the FW.1827 Rationalised Front Pan. | 24th Mar 1944 | Box 113 \ 5 scan0166 | |
| Results of the fourth torsional stiffness test on a Hythe Frame. | 28th Mar 1944 | Box 113 \ 5 scan0167 | |
| Requesting technical drawings for a Bent Front Pan, crossmember, and other engine components. | 29th Mar 1944 | Box 113 \ 5 scan0168 | |
| Preliminary report on the merits and defects of an overhead camshaft design for a Bentley. | 28th Oct 1936 | Box 113 \ 5 scan0169 | |
| Preliminary report on tests for an overhead camshaft conversion on a 4.1/4 Litre Bentley engine. | 27th Oct 1936 | Box 113 \ 5 scan0170 | |
| Investigation into engine noise, focusing on tappets and the chain and tensioner. | 27th Oct 1936 | Box 113 \ 5 scan0171 | |
| Graph of ignition timing curves for a 4 1/4 Litre Bentley O.H.C. engine, comparing standard and converted configurations. | 17th Oct 1936 | Box 113 \ 5 scan0172 | |
| Performance graph comparing a standard 4¼ Litre Bentley engine with an O.H.C. conversion and altered timings. | 17th Oct 1936 | Box 113 \ 5 scan0173 | |
| Low-speed rattle issue with an O.H. camshaft unit and proposed solutions. | 7th Dec 1936 | Box 113 \ 5 scan0174 | |
| Test report on chain oscillation during the test bed development of an overhead camshaft conversion for a 4 1/4-litre Bentley engine. | 5th Dec 1936 | Box 113 \ 5 scan0175 | |
| Series of tests to diagnose and resolve engine chain oscillation issues. | 5th Dec 1936 | Box 113 \ 5 scan0176 | |
| Series of engine oscillation tests with varying parameters. | 5th Dec 1936 | Box 113 \ 5 scan0177 | |
| Engine tests investigating chain rattle, oscillation, and cylinder head water leaks. | 5th Dec 1936 | Box 113 \ 5 scan0178 | |
| Cost comparison between a 'Corrujoint' gasket and a standard Copper and Asbestos gasket for a 4.5-litre Bentley. | 5th Dec 1936 | Box 113 \ 5 scan0179 | |
| Requesting a sheet-metal casing for a Bentley O.H.C. engine's cam balancer during road testing. | 29th Dec 1936 | Box 113 \ 5 scan0180 | |
| The development and testing of an overhead camshaft unit, detailing issues and proposed modifications. | 29th Jan 1937 | Box 113 \ 5 scan0181 | |
| Test bench summary on the experimental overhead camshaft conversion for the 4¼-Litre Bentley, focusing on chain drive oscillation. | 28th Jan 1937 | Box 113 \ 5 scan0182 | |
| Engine oscillation tests using a cam-balancer, camshaft flywheel, and tensioners, with a comparison of valve spring loads. | 28th Jan 1937 | Box 113 \ 5 scan0183 | |
| Valve spring loads, performance, noise, and exhaust valve expansion. | 28th Jan 1937 | Box 113 \ 5 scan0184 | |
| Analysis of engine valve expansion and temperature differences between sodium-cooled and non-sodium valves. | 28th Jan 1937 | Box 113 \ 5 scan0185 | |
| Gasket water leaks on the Phantom III and proposals for a new gasket and cam balance/flywheel redesign. | 28th Jan 1937 | Box 113 \ 5 scan0186 | |
| Weight comparison of components between a standard 4¼-litre Bentley engine and an O.H.C. converted engine. | 28th Jan 1937 | Box 113 \ 5 scan0187 | |
| Graph showing exhaust valve contraction over time for a 4 1/4 Litre Bentley (O.H.C) engine, comparing different valve configurations. | 19th Feb 1937 | Box 113 \ 5 scan0188 | |
| Letter to a supplier regarding the testing and ordering of tensioners for an experimental department. | 19th Feb 1937 | Box 113 \ 5 scan0189 | |
| Development of an Overhead Camshaft Unit for a Bentley and requesting a testing timeline. | 3rd Feb 1937 | Box 113 \ 5 scan0190 | |
| Proposing a test on an O.H.C. Bentley engine to compare a new exhaust valve against the existing sodium-cooled valves. | 10th Mar 1937 | Box 113 \ 5 scan0191 | |
| Instruction to prepare a Delco-Remy governor with a specified advance curve for a B-23 O.H.C. Engine. | 10th Apr 1937 | Box 113 \ 5 scan0192 | |
| Inquiring about the location of an alternative overhead camshaft for an engine. | 18th Jun 1937 | Box 113 \ 5 scan0193 | |
| Comparison of lap times for two cars with different tyre setups at Brooklands. | 6th Aug 1937 | Box 113 \ 5 scan0194 | |
| Research into an Overhead Camshaft Engine, comparing it with side-valve and push-rod designs. | 2nd Aug 1937 | Box 113 \ 5 scan0195 | |
| Report discussing the pros and cons of an overhead camshaft engine project, including a Q&A on power output. | 2nd Aug 1937 | Box 113 \ 5 scan0196 | |
| Question and answer sheet regarding the performance, cost, and reliability of an O.H.V. engine. | 2nd Aug 1937 | Box 113 \ 5 scan0197 | |
| Question and answer document regarding engine performance, weight, development status, and future project planning. | 1st Aug 1937 | Box 113 \ 5 scan0198 | |
| Graph comparing the power output of a standard 4¼ Litre Bentley engine with an Overhead Camshaft (O.H.C.) conversion unit. | 7th Aug 1937 | Box 113 \ 5 scan0199 | |
| Internal memorandum regarding a request for a revised camshaft drawing for the Bentley O.H.C. unit. | 7th Aug 1937 | Box 113 \ 5 scan0200 | |
| Requesting the production of two sets of smaller exhaust valves and seats for an O.H.C. Bentley unit for testing. | 9th Sep 1937 | Box 113 \ 5 scan0201 | |
| Failure of an inlet valve rocker from a B.23 O.H.C. unit after extensive testing. | 8th Oct 1937 | Box 113 \ 5 scan0202 | |
| Photograph and test details of a fractured O.H.C. Unit Rocker. | 19th Oct 1937 | Box 113 \ 5 scan0203 | |
| Use of an overhead camshaft engine for investigation work applicable to the Phoenix project. | 19th Oct 1937 | Box 113 \ 5 scan0204 | |
| Request to manufacture twelve exhaust valve guides for an O.H.C. unit B.23. | 21th Oct 1937 | Box 113 \ 5 scan0205 | |
| Instructing to stop work on the overhead camshaft unit. | 22th Oct 1937 | Box 113 \ 5 scan0206 | |
| Instruction to make two exhaust manifolds for tests to be carried out on the O.H.C. Bentley unit. | 6th Jan 1938 | Box 113 \ 5 scan0207 | |
| Experimental department report summarizing development work carried out on an OHC Conversion Unit. | 13th Feb 1939 | Box 113 \ 5 scan0208 | |
| Summary of development and performance testing on an O.H.C. conversion unit. | 13th Feb 1939 | Box 113 \ 5 scan0209 | |
| Report discussing engine detonation, alternative head designs, and a comparative table of valve gear specifications. | 13th Feb 1939 | Box 113 \ 5 scan0210 | |
| Valve gear development, detailing issues with valve springs, rockers, and camshaft chain drives, including a table of seat loads and stresses. | 13th Feb 1939 | Box 113 \ 5 scan0211 | |
| Test report detailing investigations into engine vibration, chain oscillation, and the effects of tensioners, camshafts, and flywheels. | 13th Feb 1939 | Box 113 \ 5 scan0212 | |
| Report page detailing tests on sodium-cooled valves, cylinder head joint issues, and engine expansion characteristics. | 13th Feb 1939 | Box 113 \ 5 scan0213 | |
| Engine performance analysis, including issues with noise, detonation, and head design. | 13th Feb 1939 | Box 113 \ 5 scan0214 | |
| Page discussing the effects of reduced loading on power, cam loads, and chain drive. | 17th Oct 1936 | Box 113 \ 5 scan0215 | |
| Graph of ignition timing characteristics for a 4 1/2 Litre Bentley engine in both standard and O.H.C. converted forms. | 17th Oct 1936 | Box 113 \ 5 scan0216 | |
| Power-output graph for a 4¼ Litre Bentley, comparing an Overhead Camshaft conversion unit to the standard engine. | 2nd Mar 1941 | Box 113 \ 5 scan0217 | |
| Requesting technical details on Morris or Standard camshafts for small cars. | 2nd Mar 1941 | Box 113 \ 5 scan0218 | |
| Technical data sheet comparing camshaft performance metrics for various engine units. | 26th May 1941 | Box 113 \ 5 scan0219 | |
| Technical analysis of cam loading, valve gear weights, and noise on various engine models. | 26th May 1941 | Box 113 \ 5 scan0220 | |
| Design of banjo type rear axles and reviewing a design from a LaSalle car. | 15th Apr 1935 | Box 114 \ 1 scan0001 | |
| Letter from The Universal Car Co. regarding the successful loan of a Ford V/8 Rear Axle Assembly. | 20th Apr 1935 | Box 114 \ 1 scan0002 | |
| Letter to Universal Car Co. Ltd. regarding the loan of a Ford Motor Co. Ltd. V/8 axle assembly. | 25th Apr 1935 | Box 114 \ 1 scan0003 | |
| Letter to the Ford Motor Co. Ltd. requesting the loan of a V/8 Ford rear axle assembly. | 25th Apr 1935 | Box 114 \ 1 scan0004 | |
| Proposed design of a Banjo Axle for a variety of car. | 26th Apr 1935 | Box 114 \ 1 scan0005 | |
| Letter from Ford Motor Company confirming the despatch of a V8 Rear Axle Assembly. | 2nd May 1935 | Box 114 \ 1 scan0006 | |
| Bearing alloys, a Ford V.8 rear axle for inspection, Bentley tappet noise, and cancelling Adamant Marles steering. | 10th May 1935 | Box 114 \ 1 scan0007 | |
| Proposing the design of a banjo back axle for the Wraith chassis as an alternative. | 16th May 1935 | Box 114 \ 1 scan0008 | |
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