| Description | Date | Identifier | |
| The properties and applications of laminated goods and powder mouldings, with comparative data and beam test results. | 26th Apr 1934 | Box 61 \ 1 scan0241 | |
| Comparative data sheet of physical and electrical properties for various base materials. | 26th Apr 1934 | Box 61 \ 1 scan0242 | |
| Technical comparison of various insulating materials, including Fabric Base, Tufnol, and Asbestos types. | 4th Sep 1935 | Box 61 \ 1 scan0243 | |
| Letter to Bakelite, Ltd. requesting particulars for an Asbestos Fibre moulding powder, grade EXX5072. | 4th Sep 1935 | Box 61 \ 1 scan0244 | |
| Letter from Bakelite Limited discussing the properties and suitability of various moulding materials for high electrical performance applications. | 5th Sep 1935 | Box 61 \ 1 scan0245 | |
| Letter from Bakelite Limited discussing the tensile strength and insulation properties of moulding material EXX 4933/4. | 6th Sep 1935 | Box 61 \ 1 scan0246 | |
| Requesting an alteration to the Phantom III ignition wiring tubes to prevent insulation failure. | 16th Sep 1935 | Box 61 \ 1 scan0247 | |
| Specifying the use of heat-resistant Bakelite powder for insulating parts on Merlin E inlet sparking plug adaptors. | 17th Sep 1935 | Box 61 \ 1 scan0248 | |
| Letter to Bakelite Ltd. confirming satisfactory test results for a powder sample and the intent to place an order. | 17th Sep 1935 | Box 61 \ 1 scan0249 | |
| Promotional leaflet for 'Resistoid', an insulating and protective covering material. | 17th Sep 1935 | Box 61 \ 1 scan0250 | |
| Promotional leaflet for the 'Resistoid' inexpensive new covering process, detailing its applications and benefits. | 17th Sep 1935 | Box 61 \ 1 scan0251 | |
| Article detailing a new finishing process called 'Resistoid', its properties, application, and uses. | 17th Sep 1935 | Box 61 \ 1 scan0252 | |
| Letter from Nutter Son & Edge Ltd regarding a product named 'Resistoid', enclosing a pamphlet and requesting a meeting. | 17th Sep 1935 | Box 61 \ 1 scan0253 | |
| Letter introducing the 'Resistoid' protective finish for aircraft parts. | 7th Aug 1935 | Box 61 \ 1 scan0254 | |
| Letter to Nutter Son & Edge, Ltd. requesting a sample of 'Resistoid' for laboratory testing. | 24th Sep 1935 | Box 61 \ 1 scan0255 | |
| Letter to Imperial Chemical Industries inquiring about the properties of 'Seekay Wax' for use in ignition coils. | 24th Sep 1935 | Box 61 \ 1 scan0256 | |
| Request to order various Air Ministry cables from British Insulated cables, Ltd. | 1st Oct 1935 | Box 61 \ 1 scan0257 | |
| Letter to Messrs. Hadfields requesting a sample of tissue paper for varnish tests. | 2nd Oct 1935 | Box 61 \ 1 scan0258 | |
| Letter from Hadfields (Merton) Ltd acknowledging a request and confirming tissue paper samples will be sent for testing. | 3rd Oct 1935 | Box 61 \ 1 scan0259 | |
| Advice note from The Sterling Varnish Company for four different types of varnish samples. | 10th Oct 1935 | Box 61 \ 1 scan0260 | |
| Letter from The Sterling Varnish Company regarding varnish samples sent for testing. | 10th Oct 1935 | Box 61 \ 1 scan0261 | |
| Requesting an inquiry to Ellisons Insulations Ltd. about manufacturing small insulated bobbins. | 17th Oct 1935 | Box 61 \ 1 scan0262 | |
| Follow-up letter to Imperial Chemical Industries Ltd. regarding a previous enquiry about Seekay Wax. | 17th Oct 1935 | Box 61 \ 1 scan0263 | |
| Letter from Imperial Chemical Industries regarding the properties and handling of Seekay Wax. | 18th Oct 1935 | Box 61 \ 1 scan0264 | |
| Report from Imperial Chemical Industries on safety precautions for the use of chlorinated naphthalenes. | 13th Sep 1935 | Box 61 \ 1 scan0265 | |
| Urgent order for Bakelite bushes for the Merlin 'E' engine ignition wiring. | 18th Oct 1935 | Box 61 \ 1 scan0266 | |
| Query on the deterioration of Seekay Wax from re-heating, with an attached letter and precautions from I.C.I. | 19th Oct 1935 | Box 61 \ 1 scan0267 | |
| Letter to Bakelite, Ltd. requesting a visit from their representative to discuss Bakelite Powder. | 13th Nov 1935 | Box 61 \ 1 scan0268 | |
| Modification of Merlin E conduits to avoid mechanical breakdowns and improve heat resistance. | 13th Nov 1935 | Box 61 \ 1 scan0269 | |
| Letter from Bakelite Limited confirming a telephone conversation and an arranged meeting with Mr. H. E. West. | 15th Nov 1935 | Box 61 \ 1 scan0270 | |
| Letter to Bakelite Ltd. regarding a booklet on 'Bakelite Molding Technic' left at their office. | 20th Nov 1935 | Box 61 \ 1 scan0271 | |
| Letter to Bakelite Ltd. regarding experiments with heat-resisting moulding powder. | 27th Nov 1935 | Box 61 \ 1 scan0272 | |
| Letter concerning the unsatisfactory odour of 'Thiokol' covered cables used in experiments on the Phantom III chassis. | 7th Dec 1935 | Box 61 \ 1 scan0273 | |
| Letter regarding the pricing of an improved cable and a potential meeting at an S.B.A.C. sub-committee on ignition equipment. | 10th Dec 1935 | Box 61 \ 1 scan0274 | |
| Letter from a cable manufacturer discussing experiments with Thiokol Cable, noting its unpleasant odour and increased cost. | 9th Dec 1935 | Box 61 \ 1 scan0275 | |
| Letter to British Insulated Cables, Ltd., regarding the development of a High-Tension cable system for an engine. | 13th Dec 1935 | Box 61 \ 1 scan0276 | |
| Letter from British Insulated Cables Ltd. to H.E. West regarding arranging a meeting. | 16th Dec 1935 | Box 61 \ 1 scan0277 | |
| Letter from British Insulated Cables Ltd. confirming a meeting arrangement. | 17th Dec 1935 | Box 61 \ 1 scan0278 | |
| Letter from British Insulated Cables Ltd. confirming a cable order, price, and despatch. | 9th Jan 1936 | Box 61 \ 1 scan0279 | |
| Letter from British Insulated Cables Ltd. confirming a telephone conversation and the dispatch of a tubing sample and special starter cable. | 11th Jan 1936 | Box 61 \ 1 scan0280 | |
| Letter from British Insulated Cables Ltd. regarding a sample of black cotton braid sleeving treated with French chalk. | 25th Jan 1936 | Box 61 \ 1 scan0281 | |
| Letter from British Insulated Cables Ltd. acknowledging a letter and confirming an order for Systoflex sleeving. | 28th Jan 1936 | Box 61 \ 1 scan0282 | |
| Impregnation and filling of ignition coils with 'Seekay' wax. | 24th Sep 1935 | Box 61 \ 1 scan0283 | |
| Standardisation of parts for the impregnation and filling of ignition coils with 'Seekay' wax. | 24th Sep 1935 | Box 61 \ 1 scan0284 | |
| Letter from British Insulated Cables Ltd. regarding a meeting to discuss technical information on certain materials. | 31th Jan 1936 | Box 61 \ 1 scan0285 | |
| Letter postponing a visit and proposing to arrange a definite appointment at a later date. | 1st Feb 1936 | Box 61 \ 1 scan0286 | |
| Requesting the return of a special insulator left behind by Mr. Alec Lodge of Lodge Plugs Ltd. | 26th Feb 1936 | Box 61 \ 1 scan0287 | |
| Letter from British Insulated Cables Ltd. concerning samples of ignition cables sent for experiments. | 1st Feb 1936 | Box 61 \ 1 scan0288 | |
| Letter from British Insulated Cables Ltd. to H. E. West regarding a meeting arrangement. | 3rd Feb 1936 | Box 61 \ 1 scan0289 | |
| Letter to British Insulated Cables Ltd. inquiring about the progress of new flexible sheathing. | 17th Mar 1936 | Box 61 \ 1 scan0290 | |
| Letter from a supplier regarding difficulty in obtaining bronze flat strip for new flexible sheathing samples. | 18th Mar 1936 | Box 61 \ 1 scan0291 | |
| Letter from British Insulated Cables Ltd. concerning supply difficulties and construction details of a Special Flexible Tube. | 28th Mar 1936 | Box 61 \ 1 scan0292 | |
| Letter regarding the specifications and delivery of special flexible tubing for experiments. | 2nd Apr 1936 | Box 61 \ 1 scan0293 | |
| Proposal to experiment with using transformer oil instead of wax for filling ignition coils to exclude air. | 22th Apr 1936 | Box 61 \ 1 scan0294 | |
| Methods for filling ignition coils, comparing liquid insulators with wax and proposing a new process for handling Seekay wax. | 23th Apr 1936 | Box 61 \ 1 scan0295 | |
| Attaching a copy of the silver anniversary number of 'Bakelite Review', detailing the development of Bakelite materials from 1910 to 1935. | 19th May 1936 | Box 61 \ 1 scan0296 | |
| Requesting an order for 100 yards of phosphor bronze braided sheath from British Insulated Cables Ltd. | 30th May 1936 | Box 61 \ 1 scan0297 | |
| The modification and cost of tachometer and speedometer cables for the Bentley 'H' Series chassis. | 5th Jun 1936 | Box 61 \ 1 scan0298 | |
| Letter from British Insulated Cables Ltd. concerning the supply of stainless steel wire for ignition cables. | 6th Jun 1936 | Box 61 \ 1 scan0299 | |
| Specification for the H.T. Ignition Cable for Merlin F Engines. | 8th Jun 1936 | Box 61 \ 1 scan0300 | |
| Letter to British Insulated Cables Ltd. regarding the production of a new special ignition cable. | 8th Jun 1936 | Box 61 \ 1 scan0301 | |
| Letter to Imperial Chemical Industries requesting a new type of 'Seekay Wax' with lower electrical inductivity for impregnating windings. | 16th Jun 1936 | Box 61 \ 1 scan0302 | |
| Letter from Imperial Chemical Industries regarding experiments with Seekay Wax. | 17th Jun 1936 | Box 61 \ 1 scan0303 | |
| Letter from Imperial Chemical Industries regarding the availability and properties of Seekay Wax. | 19th Jun 1936 | Box 61 \ 1 scan0304 | |
| Letter to Imperial Chemical Industries Ltd. requesting a sample tin of SEEKAY WAX for experimental tests. | 23th Jun 1936 | Box 61 \ 1 scan0305 | |
| Letter from Imperial Chemical Industries regarding the unavailability of a sample of RX.118 grade Seekay Wax for experimental purposes. | 27th Jun 1936 | Box 61 \ 1 scan0306 | |
| Letter from British Insulated Cables Ltd. regarding a 50-yard coil of special high-tension ignition cable. | 29th Jun 1936 | Box 61 \ 1 scan0307 | |
| Letter regarding a sample of special 7 m/m Ignition Wire with details on its insulation properties. | 1st Aug 1936 | Box 61 \ 1 scan0308 | |
| Letter to British Insulated Cables Ltd. inquiring about ignition cables with specific dielectric properties. | 4th Aug 1936 | Box 61 \ 1 scan0309 | |
| Letter from British Insulated Cables Ltd. concerning a sample of Ignition Cable and its improved resistance to ozone. | 5th Aug 1936 | Box 61 \ 1 scan0310 | |
| Letter to W.O. Kennington of Delco-Remy & Hyatt regarding inferior H.T. ignition cable test results. | 6th Aug 1936 | Box 61 \ 1 scan0311 | |
| Letter on Hotel D'Angleterre letterhead regarding a holiday, with an annotation about 'HT Cables'. | 8th Aug 1936 | Box 61 \ 1 scan0312 | |
| Letter discussing B.S. ignition cable, inductive capacity, and obtaining American material for testing. | 8th Aug 1936 | Box 61 \ 1 scan0313 | |
| Page 3 of a handwritten letter from Ernest A. Bayles discussing rubber-like materials and requesting a sample of American cable. | 13th Aug 1936 | Box 61 \ 1 scan0314 | |
| Letter to a supplier complaining about the inferior ozone resistance of their 7 mm H.T. ignition cable. | 13th Aug 1936 | Box 61 \ 1 scan0315 | |
| Letter from a supplier regarding the ozone resistance testing of an ignition cable. | 14th Aug 1936 | Box 61 \ 1 scan0316 | |
| Letter to British Insulated Cables Ltd. describing the method of testing for ozone on cables. | 15th Aug 1936 | Box 61 \ 1 scan0317 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding a B.I. cable sample and its ozone test. | 2nd Sep 1936 | Box 61 \ 1 scan0318 | |
| Letter to Messrs. Delco-Remy & Hyatt, Ltd. regarding the quality of a cable sample and an ozone test. | 3rd Sep 1936 | Box 61 \ 1 scan0319 | |
| Letter from British Insulated Cables Ltd. regarding samples of flexibles for steering wheels. | 11th Sep 1936 | Box 61 \ 1 scan0320 | |
| Letter returning a broken ignition coil from a cable testing apparatus and requesting a replacement. | 29th Sep 1936 | Box 61 \ 1 scan0321 | |
| The supply of a standard 25/30 ignition coil to British Insulated Co. Ltd. | 3rd Oct 1936 | Box 61 \ 1 scan0322 | |
| Letter to a supplier regarding a complaint about a faulty H.T. ignition cable. | 27th Oct 1936 | Box 61 \ 1 scan0323 | |
| Letter from British Insulated Cables Ltd. acknowledging receipt of a complaint and a sample of H.T. Ignition Cable for examination. | 28th Oct 1936 | Box 61 \ 1 scan0324 | |
| Observations to reduce engine friction and improve petrol consumption. | 29th Oct 1912 | Box 61 \ 2 scan0001 | |
| Departmental memo regarding the requirement of a Direct Current Motor for engine testing. | 29th Oct 1912 | Box 61 \ 2 scan0002 | |
| Departmental memo discussing a quote for a new 18 HP motor, its specifications, and price. | 29th Oct 1912 | Box 61 \ 2 scan0003 | |
| Departmental memo regarding a delay in experiments due to obtaining an electro-motor for the experimental shop. | 14th Feb 1913 | Box 61 \ 2 scan0004 | |
| Extract from Mr Royce's memo regarding a suggestion for complete testing tackle for side shafts. | 14th Feb 1913 | Box 61 \ 2 scan0005 | |
| Extract from a memo from Mr Royce regarding dynamometer generator specifications. | 6th Mar 1913 | Box 61 \ 2 scan0006 | |
| Requesting an approximate delivery date for an electro-motor required for Mr Royce's experiments. | 6th Mar 1913 | Box 61 \ 2 scan0007 | |
| Departmental memo chasing the acquisition of an electro-motor for an analytical rig. | 29th Apr 1913 | Box 61 \ 2 scan0008 | |
| To Mr Hives urging the fitting of an electro motor which is holding up Mr Royce's experiments. | 14th Aug 1913 | Box 61 \ 2 scan0009 | |
| Request to complete electrical wiring and design a motor coupling for the Experimental Shop's analysing rig. | 17th Dec 1913 | Box 61 \ 2 scan0010 | |
| Urgent request for instructions and drawings for a coupling for an analysing rig in the Experimental Shop. | 28th Jan 1914 | Box 61 \ 2 scan0011 | |
| Urgently requesting the completion of an electric motor for experimental work. | 4th Oct 1918 | Box 61 \ 2 scan0012 | |
| Internal request to order two standard brush holders for an experimental motor from Newton Brothers. | 17th Oct 1918 | Box 61 \ 2 scan0013 | |
| Instruction to rig up a small motor with the necessary brush gear for use in the experimental shed. | 14th Nov 1918 | Box 61 \ 2 scan0014 | |
| Ordering a set of parts for a motor for use in an experimental shed. | 21th Nov 1918 | Box 61 \ 2 scan0015 | |
| Request with sketch to make a cast iron V-belt pulley wheel for an electric motor. | 29th Nov 1918 | Box 61 \ 2 scan0016 | |
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