| Description | Date | Identifier | |
| Letter from Durion Limited suggesting the use of their chrome deposit process for brake drums. | 3rd Feb 1936 | Box 142 \ 4 scan0162 | |
| Use of 'Millenite' cast iron for brake drums, with a request to experiment with its production. | 4th Feb 1936 | Box 142 \ 4 scan0163 | |
| Letter to Capt. V.H. Baker of Durion Ltd. regarding the chromium plating of brake drums and material selection. | 21th Feb 1936 | Box 142 \ 4 scan0164 | |
| Letter to Ferodo Ltd. regarding chromium plating of test rig drums to assess wear resistance and suitable linings. | 21th Feb 1936 | Box 142 \ 4 scan0165 | |
| Properties and analysis of different iron materials for brake drums. | 24th Feb 1936 | Box 142 \ 4 scan0166 | |
| Millenite brake drums with representatives from Messrs. Lake & Elliot. | 25th Feb 1936 | Box 142 \ 4 scan0167 | |
| Letter from Lake & Elliot discussing brake drum performance and the metallurgical structure of Millenite. | 17th Feb 1936 | Box 142 \ 4 scan0168 | |
| Letter from Lake & Elliot Ltd regarding a quotation and material for Brake Drums. | 17th Feb 1936 | Box 142 \ 4 scan0169 | |
| Letter from Lake & Elliot Ltd. regarding the testing of micro sections from a drum. | 22th Feb 1936 | Box 142 \ 4 scan0170 | |
| Letter from Durion Limited discussing a process to increase the life of brake drums by depositing on steel. | 22th Feb 1936 | Box 142 \ 4 scan0171 | |
| Letter to Messrs. Lake & Elliot discussing the microscopic analysis of submitted iron specimens. | 27th Feb 1936 | Box 142 \ 4 scan0172 | |
| Inquiry to Spun Castings Ltd. regarding the development of a cost-reduced austenitic iron for potential use in brake drums. | 4th Mar 1936 | Box 142 \ 4 scan0173 | |
| Letter from a centrifugal casting manufacturer about experiments with austenitic iron for brake drum liners. | 5th Mar 1936 | Box 142 \ 4 scan0174 | |
| Letter confirming an appointment with Messrs. James & Co. (Birmingham) Ltd. | 6th Mar 1936 | Box 142 \ 4 scan0175 | |
| Cost analysis and instruction to change the material for split pin G.79140 from chromium-plated mild steel to stainless steel. | 20th Apr 1936 | Box 142 \ 4 scan0176 | |
| Letter from Robert Hyde & Son Ltd. following up on the results of test bars sent for investigation. | 2nd Jul 1936 | Box 142 \ 4 scan0177 | |
| Letter to a supplier declining their sample material for brake drums as the current material is satisfactory and changing would incur extra cost. | 8th Jul 1936 | Box 142 \ 4 scan0178 | |
| Use of Hykro material for case hardening to avoid chromium plating on Phantom III and Merlin engine components. | 2nd Oct 1936 | Box 142 \ 4 scan0179 | |
| Risks of silver soldering brass gallery pipes for the Phantom III and Bentley models. | 27th Oct 1936 | Box 142 \ 4 scan0180 | |
| The experimental results of using carburised Hykro for case hardened materials. | 11th Nov 1936 | Box 142 \ 4 scan0181 | |
| Material suitability and heat treatment processes for camshafts, Phantom III tappets, and rocker levers. | 11th Nov 1936 | Box 142 \ 4 scan0182 | |
| Cost and properties of 'Hykro' crankshaft material compared to V.C.M. | 18th Nov 1936 | Box 142 \ 4 scan0183 | |
| Letter from the Aluminium Protection Company regarding an enquiry for anodised aluminium samples. | 18th Jan 1937 | Box 142 \ 4 scan0184 | |
| Address change notification for Aluminium Protection Company, Ltd. including a location map. | 8th Jan 1937 | Box 142 \ 4 scan0185 | |
| Leaflet outlining the various industrial applications of the Dialumin Process. | 8th Jan 1937 | Box 142 \ 4 scan0186 | |
| Advertisement for the Dialumin anodising process for stainless and coloured aluminium finishes. | 3rd Feb 1937 | Box 142 \ 4 scan0187 | |
| Letter to the Aluminium Protection Co. Ltd. chasing up samples of anodized aluminium. | 3rd Feb 1937 | Box 142 \ 4 scan0188 | |
| Properties and potential cost savings of using cast iron for camshafts and crankshafts. | 2nd Aug 1937 | Box 142 \ 4 scan0189 | |
| Steel castings for suspension parts and the weight of a Ford crank as a point of comparison. | 2nd Aug 1937 | Box 142 \ 4 scan0190 | |
| Defining different classes of chassis steels based on their physical characteristics and composition. | 12th Nov 1937 | Box 142 \ 4 scan0191 | |
| Definition and specification of various types of steel for chassis work. | 12th Nov 1937 | Box 142 \ 4 scan0192 | |
| The considerations and challenges of specifying chassis steels by their physical characteristics. | 12th Nov 1937 | Box 142 \ 4 scan0193 | |
| Negotiations with the supplier Firths regarding steel supplies, quality, test methods, and cost reduction. | 12th Nov 1937 | Box 142 \ 4 scan0194 | |
| Letter from 'Light Metals' introducing their new monthly publication covering light metals and their alloys. | 27th Jan 1938 | Box 142 \ 4 scan0195 | |
| Lecture on metal adhesives and its relevance to power plant and chassis development. | 21th Jan 1944 | Box 142 \ 4 scan0196 | |
| Request for a copy of a paper concerning metal adhesives. | 7th Feb 1944 | Box 142 \ 4 scan0197 | |
| Request for whitewashing, window cleaning, and lighting improvements in the Blower House. | 1st Jan 1934 | Box 143 \ 1 scan0001 | |
| Request to fit a second drawer and lock to a desk in the Experimental Office. | 5th Jan 1934 | Box 143 \ 1 scan0002 | |
| Outlining the specifications for building a new test rig for Dumper Governor Units. | 1st Jan 1934 | Box 143 \ 1 scan0003 | |
| Request to modify the K.10 Test House by tilting a Bentley unit for Spectre engine development. | 9th Jan 1934 | Box 143 \ 1 scan0004 | |
| Request to fit Yale locks to the doors of No. 5 Test House to prevent petrol theft. | 1st Jan 1934 | Box 143 \ 1 scan0005 | |
| Request to order a portable hand pump fixed to a tripod for use in the Experimental Dept. | 23th Jan 1934 | Box 143 \ 1 scan0006 | |
| Confirming arrangements to fit a Single Cylinder Unit for a Bentley and 20/25 HP engine to a test bed. | 24th Jan 1934 | Box 143 \ 1 scan0007 | |
| Confirming a change to the Spectre development programme, altering the tilting tackle angle. | 25th Jan 1934 | Box 143 \ 1 scan0008 | |
| Request to manufacture an experimental test rig for Shock Damper Control Bellows, part F.85395. | 7th Feb 1934 | Box 143 \ 1 scan0009 | |
| Requesting particulars for a counter to be used in an instrument for counting engine revolutions. | 14th Mar 1934 | Box 143 \ 1 scan0010 | |
| Request to arrange for the repainting of a 100 lb. Brake Scale from No.4 Test House. | 26th Mar 1934 | Box 143 \ 1 scan0011 | |
| The potential installation and cost of a cold chamber for cold starting tests. | 13th Apr 1934 | Box 143 \ 1 scan0012 | |
| Urgent internal request for a 250 lbs spring balance for testing shock dampers. | 12th May 1934 | Box 143 \ 1 scan0013 | |
| Urgent internal request detailing the specifications for a stop cock valve. | 14th May 1934 | Box 143 \ 1 scan0014 | |
| Requesting the fitting of wooden storage racks in the Experimental Garage. | 17th May 1934 | Box 143 \ 1 scan0015 | |
| New building blocking light to the Test House and requesting remedial action. | 25th May 1934 | Box 143 \ 1 scan0016 | |
| Request for alterations to a table in the Experimental Department Typists' Office. | 31th May 1934 | Box 143 \ 1 scan0017 | |
| Requesting an order for a 20 ft. square, light-tight tarpaulin sheet to cover photographic apparatus. | 6th Jun 1934 | Box 143 \ 1 scan0018 | |
| The arrangement of a test bed for Spectre and Bentley units. | 9th Jun 1934 | Box 143 \ 1 scan0019 | |
| Urgent request for immediate modification to an outdated coupling on the Bentley bed in the K.10 Test House. | 11th Jun 1934 | Box 143 \ 1 scan0020 | |
| Request to supply a size 5 drawing board and one 'T' square for the Experimental Garage. | 21th Jun 1934 | Box 143 \ 1 scan0021 | |
| Requesting the rebuild of a blower rig in Test House No. 17 for air flow tests on specific aero cylinder heads. | 4th Jul 1934 | Box 143 \ 1 scan0022 | |
| Design of an improved rig for lapping car engine timing gears, outlining existing faults and suggesting improvements. | 9th Jul 1934 | Box 143 \ 1 scan0023 | |
| Suggestion to fit flywheels to the shafts on the lapping rig to produce better quality gears. | 2nd Jul 1934 | Box 143 \ 1 scan0024 | |
| Use of flywheels on rigs for lapping gears, referencing past attempts and observations from Daimler. | 19th Jul 1934 | Box 143 \ 1 scan0025 | |
| Urgent internal memo regarding the setup of a valve spring rig. | 13th Jul 1934 | Box 143 \ 1 scan0026 | |
| The completion of Bumper Test Rigs and modifications required for the dynamometer. | 10th Aug 1934 | Box 143 \ 1 scan0027 | |
| Request to build a valve spring running rig for production testing and experimental cam forms. | 5th Sep 1934 | Box 143 \ 1 scan0028 | |
| From Hs/Rm to EJJ requesting the urgent repair of a planimeter. | 8th Sep 1934 | Box 143 \ 1 scan0029 | |
| Design of cams for a valve spring running rig, specifically to reproduce the Goshawk valve lift. | 10th Sep 1934 | Box 143 \ 1 scan0030 | |
| Request to replace Autoclean filters with Tecalemit Oil Filters on the Bentley and Phantom test beds. | 14th Sep 1934 | Box 143 \ 1 scan0031 | |
| Listing the essential requirements for the experimental garage at Shardlow. | 24th Sep 1934 | Box 143 \ 1 scan0032 | |
| Outlining the essential requirements for the new Experimental Garage at Shardlow. | 24th Sep 1934 | Box 143 \ 1 scan0033 | |
| List of essential requirements for setting up an experimental garage at Shardlow. | 26th Sep 1934 | Box 143 \ 1 scan0034 | |
| Amending an order for a Valve Spring Rig from one to two. | 27th Sep 1934 | Box 143 \ 1 scan0035 | |
| Necessary repairs and upgrades for the K.10 Car Unit Test House, including work on the Bentley and Phantom test beds. | 1st Nov 1934 | Box 143 \ 1 scan0036 | |
| List of required work including oil coolers, padlocks, doors, and lighting. | 1st Nov 1934 | Box 143 \ 1 scan0037 | |
| Request to instruct Millwrights to fit a dirt screen over a desk in the Experimental K.10 Car Unit Test House. | 19th Nov 1934 | Box 143 \ 1 scan0038 | |
| Request for one 'Tyne Coat' for the use of the man on the car wash. | 7th Dec 1934 | Box 143 \ 1 scan0039 | |
| New dynamometer brake for the experimental test house and its placement. | 7th Dec 1934 | Box 143 \ 1 scan0040 | |
| Short memo discussing a small part of a 5-ton pulley block and questioning the material used. | 13th Dec 1934 | Box 143 \ 1 scan0041 | |
| Requesting an order for a Hopkinson Oil Pressure Gauge for the New Bentley Bed in the K.10 Test House. | 27th Dec 1934 | Box 143 \ 1 scan0042 | |
| Safety request to fit guards over coupling shafts in No. 5 Test House. | 1st Jan 1935 | Box 143 \ 1 scan0043 | |
| Outlining defects and required items for the Shardlow Garage. | 2nd Jan 1935 | Box 143 \ 1 scan0044 | |
| Request for a joiner to make alterations to benches and racks in the Experimental Department Garage. | 4th Jan 1935 | Box 143 \ 1 scan0045 | |
| Specification for the Heenan & Froude Joggler, noting an issue with the voltage. | 5th Jan 1935 | Box 143 \ 1 scan0046 | |
| Cover note confirming modifications to Spectre Test Bed (No. 5). | 7th Jan 1935 | Box 143 \ 1 scan0047 | |
| Urgent request for various Whitworth bolts and nuts for the front axle test rig. | 12th Jan 1935 | Box 143 \ 1 scan0048 | |
| Requesting the whitewashing and painting of the Experimental Garage. | 14th Jan 1935 | Box 143 \ 1 scan0049 | |
| The inadequacy of oil stoves for heating the Experimental Garage at Shardlow and a request to find an alternative. | 14th Jan 1935 | Box 143 \ 1 scan0050 | |
| Request to change a drawing board for a smaller one and to be provided with a suitable Tee-square. | 16th Jan 1935 | Box 143 \ 1 scan0051 | |
| Request to rewire the Bentley Test Bed in Test House No. 5 following a burnt-out switchbox. | 18th Jan 1935 | Box 143 \ 1 scan0052 | |
| Request to fit the Bentley Test Bed with a new support for modified rear engine suspension. | 18th Jan 1935 | Box 143 \ 1 scan0053 | |
| Confirming the allocation of Art Metal Cupboards for the Shardlow Garage and a replacement board. | 21th Jan 1935 | Box 143 \ 1 scan0054 | |
| Requesting protection for the Garage Chief Tester due to a colleague getting sick from a chill. | 1st Feb 1935 | Box 143 \ 1 scan0055 | |
| Request to the Pattern Shop to make a wooden trestle for the Shardlow Garage. | 7th Feb 1935 | Box 143 \ 1 scan0056 | |
| To EJJ urging forward work on an urgently required trestle. | 13th Feb 1935 | Box 143 \ 1 scan0057 | |
| To the Pattern Shop urging the work on a previously requested Wooden Trestle for the Shardlow Garage. | 13th Feb 1935 | Box 143 \ 1 scan0058 | |
| Request for a five-division filing rack to be erected in the Experimental Department Typists' Office. | 27th Feb 1935 | Box 143 \ 1 scan0059 | |
| To Mr. Peskett about fitting a petrol flowmeter and oil pipes to Car Unit Bed K-10. | 4th Mar 1935 | Box 143 \ 1 scan0060 | |
| Safety memo regarding exhaust gas blowback in No. 5 Test Bed (Spectre) and a request for a milk can. | 13th Mar 1935 | Box 143 \ 1 scan0061 | |
| Request for two sets of pit boards to be made and fitted for the Experimental Garage. | 15th Mar 1935 | Box 143 \ 1 scan0062 | |
| Urgent request to the Pattern Shop for board replacement in the Experimental Bumper Test House. | 15th Mar 1935 | Box 143 \ 1 scan0063 | |
| Request to supply a size V adjustable vertical drawing board for the Experimental Office. | 20th Mar 1935 | Box 143 \ 1 scan0064 | |
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