Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 133\3\        Box Selection

IdentifierEntry
scan0001 Inquiry to General Motors Research Dept. in Detroit regarding a two-stroke diesel unit.
View original record 1128 Kettering Kr/1/Sq 1.6.38. GENERAL MOTORS BUILDING RESEARCH DEPT. DETROIT. ROLLS-ROYCE INTERESTED IN OBTAINING GM.460 CUBIC INCH TWO STROKE DIESEL UNIT. PLEASE INFORM US OPTIMUM DELIVERY AND…

scan0002 Letter from General Motors regarding an inquiry about a 460 cubic inch two-stroke diesel unit.
View original record 1128 GENERAL MOTORS CORPORATION DETROIT, MICHIGAN June 3 1938 Mr. W. A. Robotham Rolls-Royce Limited Derby, England My dear Robotham We are just in receipt of a cable from Rolls-Royce addressed to Mr.…

scan0003 Letter to W.J. Davidson of General Motors requesting information on an exportable engine.
View original record 1128 Rm3/R. 14th June, 1938. W.J. Davidson, Esq., General Motors Corporation, Detroit, Michigan, U.S.A. Dear Davidson, Many thanks for your letter. You are right, I was responsible for the cable. I…

scan0004 Cover note for an attached letter from W.J. Davidson of General Motors regarding outside orders.
View original record 1128 Hs. from Rm. c. Wd. Rm4/R.14.6.38. Attached is a copy of a letter we have had from W.J. Davidson, who is handling the outside orders for General Motors. Rm.

scan0005 Letter to W.J. Davidson of General Motors regarding a visit from Dr. Llewellyn Smith to enquire about a provisionally ordered Diesel engine.
View original record 1128 Rm3/R. 27th August, 1938. W.J. Davidson, Esq., General Motors Corporation, DETROIT, Michigan. U.S.A. My dear Davidson, Dr. Llewellyn Smith of this Company will be in the States during the next…

scan0006 Requesting to cable General Motors for an order of a diesel engine for research purposes.
View original record D/Bp. from Hs/Ryc. Copy to Regd. Rm. 1128 Hs./Ryc.3/TS.10.38. ----------------- Diesel Engine. Please cable W.J. Davidson, Sales Manager, Diesel Division, General Motors Building, Detroit, an order…

scan0007 Letter from General Motors Sales Corporation regarding the shipment of a Model 6-71 G-M Diesel engine.
View original record 128 GENERAL MOTORS SALES CORPORATION DIESEL ENGINE DIVISION 2160 WEST 106th STREET CLEVELAND, OHIO October 11, 1938 [Handwritten Annotation] SHIPPING OFFICE Any news of this engine Rm Mr. W. A.…

scan0008 Letter from Vosper Ltd discussing the possibility of using an 8 cylinder engine and the 'Phantom 3' for a project.
View original record TELEGRAMS REPSOV PORTSMOUTH DIRECTORS: ADMIRAL SIR GEORGE CHETWODE, K.C.B., C.B.E. (Chairman) THE RIGHT HON. THE EARL OF HARDWICKE. LAWRENCE KIMBALL, M.P. ARTHUR JOHNSON, O.B.E. Lt.Comdr.(E) PETER DU…

scan0009 Letter to Lt.Comdr. P. Du Cane of Vosper Ltd. regarding an outline drawing for an engine.
View original record 439f 1128 Rm4/R. 25th October, 1938. Lt.Comdr.P. Du Cane, Managing Director, Vosper Ltd., PORTSMOUTH. Dear Du Cane, Many thanks for your letter. I will get out a suitable outline drawing of the Eight…

scan0010 The shipment of a diesel engine from General Motors and the applicable import duty.
View original record 1128 Rm. D/BP5/MW.1.11.38. Re: Diesel Engine. We have not yet received any news of this engine from General Motors, or Perry Ryer of New York. I have this morning cabled General Motors for date of…

scan0011 Confirming a 20% aero engine duty for a diesel engine following a telephone conversation.
View original record D/BP. from Rm. Rm3/R.4.11.38. re: Diesel Engine. D/BP5/MW.1.11.38. We confirm telephone conversation that this engine is subject to aero engine duty of 20%. Rm.

scan0012 Letter to Lt. Comdr. Du Cane of Vosper Ltd. enclosing an outline drawing of an 8-cylinder engine.
View original record H3Q 1128 (Experimental Dept.) Rm4/R. 10th November, 1938. Lt.Comdr.Du Cane, Messrs. Vosper Ltd., P O R T S M O U T H. Dear Du Cane, Herewith outline drawing of the 8-cylinder engine for installation…

scan0013 Request from Vosper Ltd for performance data on an 8-cylinder engine.
View original record 1128 TELEGRAMS REPSOV PORTSMOUTH VOSPER LTD PORTSMOUTH. SHIPBUILDERS & ENGINEERS SHIP REPAIRERS. TELEPHONES 2137 3 LINES NIGHT SERVICE DIRECTORS: ADMIRAL SIR GEORGE CHETWODE, K.C.B., C.B.E. (Chairman)…

scan0014 Letter responding to queries about engine specifications, power ratings, and consumption for marine purposes.
View original record 11128/ Rm8/R. 18th November, 1938. Comdr. Du Cane, Messrs. Vosper Limited, PORTSMOUTH. Dear Comdr. Du Cane, Thank you for your letter of the 17th November, I shall have to guess to answer your…

scan0015 Secret memo discussing the development and supply of marine engine units for Commander Du Cane of Vospers.
View original record 1128 SECRET. Hs. from Rm. Rm5/R.1.12.38. Comdr. Du Cane of Vospers was at the Works on the 30th, and we discussed the small Marine units with him. Sometime ago, you will remember, we gave him full…

scan0016 Confirming a job can be handled by marking drawings 'Rolls-Royce Marine Unit'.
View original record Hs. from Rm. -2- Rm5/R.1.12.38. can be adequately dealt with by marking all drawings "Rolls-Royce Marine Unit". We are certain that we can handle this job without in any way affecting our existing…

scan0017 Article from 'Automotive Industries' magazine detailing the Dodge six-cylinder, four-stroke Diesel engine.
View original record 740 Diesel Engine DODGE TRUCK DIVISION OF CHRYSLER CORPORATION immediately preceding the opening of the New York national truck show announced a Dodge-built Diesel engine for its 3-ton trucks. This…

scan0018 Article page discussing competition, government regulation, and the structure of the American oil industry.
View original record PROGRESS IN THE OIL INDUSTRY 739 served the public well. They are free from monopoly, and competition has been a chief factor. Nevertheless, there is demand for government to invade the oil industry's…

scan0019 Article from 'Automotive Industries' detailing the features and performance of a Diesel engine for a 3-ton Dodge vehicle.
View original record 741 Designed for 3-ton Dodge 24 volts throughout. However, when starting, application of the full voltage is automatically delayed until engagement of the starter pinion is completed. An electric air…

scan0020 Article discussing a swashplate-operated injection pump for a Diesel Dodge Truck, with an advertisement for Timken tubing from Ryerson Steels.
View original record 742 DIESEL FOR DODGE TRUCK usual flexibility and to assure smoke-less operation. The injection pump is of the swashplate-operated type, the axes of its six pump cylinders being parallel with and in a…

scan0021 Letter from Vosper Ltd proposing the installation of two petrol engines into a pre-built hull for demonstration purposes.
View original record 1128. Vosper Ltd ANTONY HOUSE, TORPOINT, CORNWALL. Portsmouth. Dear Rawbotham, Thanks for looking after me the other day. I really think the 8 cyl. proposition might be very interesting. Hope you will…

scan0022 Letter to Commander Du Cane of Vosper Ltd. regarding a proposition and promising a decision.
View original record 1128 Rm10/R. 7th December, 1938. Comdr. Du Cane, Vosper Ltd., PORTSMOUTH. Dear Comdr. Du Cane, Many thanks for your letter. I have put up the proposition to the Administration, and just as soon as I…

scan0023 Letter regarding customs clearance for a General Motors diesel engine and the required declaration of use.
View original record 1128 Wd. Rm. Hs/LS. D/BP18/MW.5.1.39. Re: Diesel Engine from General Motors Corporation, Cleveland, Ohio. Wd2/RS.5.1.39. Rm3/R.4.11.38. We regret that we cannot clear the engine through the Customs at…

scan0024 Clarifying the use of a General Motors Diesel engine for stationary research purposes only.
View original record 1128 To D/BP. c. to Rm. c. to Hs/LS. Wd.17/RS.6.1.39. With reference to your memo D/BP.18/MW. 5.1.39., the General Motors Corporation Diesel engine will not be used in a motor car nor will it be used…

scan0025 Blueprint of an 8-cylinder engine showing multiple views and details of the engine mounting.
View original record SCD 996 1 2 3 4 5 6 7 8 FRONT ENGINE MOUNTING. REAR MOUNTED FROM THE GEARBOX. OIL FILLER 8 CYLINDER ENGINE SCALE 1/4 ROLLS-ROYCE LTD. PRINT ROOM 9 NOV 1938 DERBY SCD 996 D KWEEN 3-11-38

scan0026 Specification and price sheet for Morris 'Vedette' Mark II petrol and paraffin marine engines.
View original record MORRIS "VEDETTE" MARK II (Petrol) 4-cyl. 6/12 h.p. MARINE ENGINE £68 10s. With full Electrical Equipment TYPE. Four-cylinder, four-cycle, detachable "L" head. Rotation to suit left-hand propeller…

scan0027 Sales and specification sheet for the Morris 'Commodore' and 'Navigator' marine engines.
View original record MORRIS "COMMODORE" MARK II (Petrol) 6-cyl. 20/40 h.p. MARINE ENGINE £136 10s. With full Electrical Equipment TYPE. Six-cylinder, four-cycle, side valve with detachable head. Rotation anti-clockwise…

scan0028 Letter to Vosper Ltd. regarding progress on a marine power plant and fuel quality issues for its diesel version.
View original record 1128. Rm.7/MH. 8th. February, 1939. Lt.Comdr. P. Du Cane, Vosper Ltd., PORTSMOUTH. Dear Du Cane, On considering the official verdict with regard to our Marine Power Plant we are not disheartened, but…

scan0029 Diesel engine performance, referencing Leyland engines' characteristics and concluding on the fuel economy of direct injection.
View original record 1128 Rm. C. BY. DA.1/G.22.2.39. 114's file DIESEL ENGINES. Re: Rm.3/R.17.2.39. Leyland engines have a speed range given as 400 - 1900 r.p.m. Probably they do not run into the 6 to 1 period and get…

scan0030 Letter to C.D. Robinson of The Associated Equipment Co., Ltd. regarding a meeting and research into diesel and petrol engines.
View original record Rmll/R. 23rd February, 1939. C.D. Robinson, Esq., The Associated Equipment Co.,Ltd., SOUTHALL, Middx. Dear Mr. Robinson, Confirming our telephone conversation, I shall hope to be at the A.E.C. Works…

scan0031 Letter to H.R. Ricardo arranging a meeting to discuss direct injection and ante-chamber diesels.
View original record 1/28 Rm12/R. 23rd February, 1939. H.R. Ricardo, Esq., Bridge Works, SHOREHAM-by-SEA. Dear Ricardo, I should like to come and see you on Monday next, the 27th instant, if this is convenient, to discuss…

scan0032 Letter from Associated Equipment Co Ltd discussing their 7.7-litre heavy oil engine, crankshaft hardening costs, and providing related drawings.
View original record 1020a? 1128 GC oil - b n/a C - oil? THE ASSOCIATED EQUIPMENT CO LTD TELEPHONE: SOUTHALL 2424 (17 LINES). TRADE MARK AEC SOUTHALL MIDDX TELEGRAMS: "VANGASTOW PHONE SOUTHALL" YOUR REF. OUR REF.…

scan0033 Summary of previous work and the current status of a 4-stroke diesel engine project.
View original record 1128 To By. from Rm/Ed. c. Da. c. Ds/Jnr. Rm/Fd.1/MH.25.2.39. PREVIOUS WORK ON 4-STROKE DIESEL. We attach herewith a very brief summary of work carried out on the short stroke Diesel engine run about…

scan0034 Performance report for a small Compression Ignition (C.I.) engine unit.
View original record Rm/Ed.2/MH.25.2.39. RUNNING ON SMALL C.I. UNIT. (6.000 BORE x 6.600 STROKE) Description of Engine. C.R. - 14.3; Length of conn. rod - 13.258". Bosch fuel injection. Airship Diesel Fuel oil, Sp. Gr.…

scan0035 Engine testing, covering fuel injection rates, swirl effects, fuel pump suction line issues, and mechanical failures.
View original record -2- Rate of Fuel Injection. This was varied by increasing the pump plunger size from 8 m/m to 10 m/m dia., the effect being an increase in power of from 1.0 to 4.0 MEP depending on the type of nozzle…

scan0036 Technical memorandum comparing anti-chamber and direct injection compression ignition engines.
View original record Rm. 1128? Da/Jnr.1/G.27.2.39. COMPRESSION IGNITION ENGINES. Our visit to A.E.C. with Rm. was very profitable, because it confirmed the information we have previously obtained from Leylands. A.E.C. who…

scan0037 Comparative analysis of engine design features and issues from various manufacturers.
View original record - 2 - The width of the shroud is 1". We had thought that the spiral swirl from the four nozzle holes was a desirable feature, but this proves to be an artist's imagination. A.E.C. do get valves…

scan0038 Pneumatic governors, engine preference for luxury coaches, and competitor intelligence.
View original record - 3 - Da/Jnr.1/G.27.2.39. In regard to governors, they say the pneumatic governor is very satisfactory and rather sensitive to its setting at slow speeds. For long distances luxury coach transport,…

scan0039 Cover memo for a summary report on a 4-stroke diesel engine contract run.
View original record To By. from Rm/Ed. c. Da. c. Da/Jnr. //28 Rm/Ed.4/MH.28.2.39. PREVIOUS WORK ON 4 STROKE DIESEL. We send herewith a summary of the A.M. report on the first 100 hours contract run on the above unit with…

scan0040 Summary of the first 100 hours of contract running on a C.I. 4-stroke unit.
View original record Rm/Ed.5/MH.28.2.39. SUMMARY OF FIRST 100 HOURS CONTRACT RUNNING ON C.I. 4-STROKE UNIT. Introduction. The period covered is from 25.7.30 to 16.6.31. Range of Investigation. (1) Nozzle Development. (2)…

scan0041 Engine test conclusions, unit specifications, and test conditions.
View original record -2- Conclusions - Cont'd. (6) Injection pressures up to 5000 lbs/sq.in. (340 atm) are fairly satisfactory, but above this figure, wear and tear on the pump and injector become rather severe. (7)…

scan0042 The development and testing of fuel injector nozzles under various conditions.
View original record -3- Nozzle Development. Nozzles were developed for two major conditions of no swirl and a specific swirl of 2.0, obtained by masking the seats. Alternative methods of inducing swirl such as vaned…

scan0043 Fuel leakage, fuel line capacity, and methods for inducing rotational air swirl in an engine.
View original record -4- A difficulty experienced with the differential type of valve is fuel leakage, which has a similar effect to using a smaller pump plunger size, giving a slight power drop. Fuel Line Capacity. A…

scan0044 Tests concerning rotational air swirl, valve timing, and injection timing and duration.
View original record -5- Rotational Air Swirl - Cont'd. (c) Integrally Masked Valves of the Hesselmann type (similar to Leyland's) were tried, and gave a specific swirl of 5.9 at 2000 R.P.M., which remains fairly constant…

scan0045 Technical document detailing injection pressure and mechanical efficiency analysis.
View original record -o- Injection Pressure. This refers to the point at which the nozzle valve lifts, and not the maximum pressure reached during injection this latter depending largely on the number and size of spray…

scan0046 Engine fuel consumption, injection advance, supercharging, and mechanical failures.
View original record 747 Rm/Id.5/MH.28.2.39. Fuel Consumption. Loops were run and showed at 2000 R.P.M. a fuel cons. of .555 lbs/BHP/hr. for 100 lbs/sq.in. and .450 lbs/BHP/hr. at 74 lbs/sq.in. At 1500 R.P.M. the…

scan0047 Mechanical failures of alloys and gudgeon pins, with a table of standard performance figures.
View original record -8- Mechanical Failures - Cont'd. (b) B.L.2 Alloy. Three bearings run, one failing due to bad adhesion and the other two being O.K. after 55 hours. (c) B.L.3 Alloy. One bearing failed due to poor…

scan0048 Thank you letter to Mr. Robinson of The Associated Equipment Co. Ltd. for his hospitality and information during a works visit.
View original record 1020W 1128 Da/Jnr.4/R. 1st. March, 1939. G.A.Robinson, Esq., The Associated Equipment Co. Ltd., SOUTHALL, Mddx. DEar Mr. Robinson, I should like to thank you for the very kind hospitality extended to…

scan0049 Thank you letter to O. Thornycroft of Messrs. Ricardo for hospitality and information during a works visit.
View original record 1129a? 29 Da/Jnr.5/R. 1st. March, 1939. O.Thornycroft, Esq., Messrs. Ricardo, Bridge Works, SHOREHAM-BY-SEA. Dear Mr. Thornycroft, I should like to thank you for the very kind hospitality extended to…

scan0050 The unsuitable installation of a 4-stroke diesel engine at a Technical College, noting severe vibration issues.
View original record 1128 To By. from Rm/Ed. c. Da. c. Da/Jnr. 4-STROKE DIESEL. The above unit is at present installed at the Technical College, the bed consisting of a 3 1/2-litre Bentley for starting purposes, a water…

scan0051 Summary of three different diesel engine cylinder head designs and their respective pros and cons.
View original record 1/28 c. Rm. DIESEL ENGINE PROJECTS. As the result of our discussions with six engineers, we have a very fair idea of the troubles we might expect with the various types of cylinder heads, and can…

scan0052 Proposal to concentrate design efforts on single-cylinder units for application to a main engine.
View original record - 2 - Da/Jnr.S/G.2.3.39. On the drawing board we have had a flutter at all of them, and we now propose to seriously concentrate on the single cylinder units, keeping in mind their application to a…

scan0053 Performance comparison graph for three different diesel cylinder head types on a six-cylinder engine.
View original record B.M.E.P. LBS/IN² LBS/B.H.P./HOUR B.H.P. R.P.M. DIESEL CYL. HEAD COMPARISON. BASED ON SIX CYL. 3½"x4½" ENGINE. COMET LANOVA DIRECT INJECTION CH/39 JNR 2.4.37

scan0054 Visit to Ricardo's to discuss compression ignition (diesel) engines, focusing on the characteristics of direct injection systems.
View original record Me: from Rm/Ed. By: c.c. Da. c.c. Da/Jnr. Rm/Ed1/R.3.3.39. Compression Ignition Engines. A visit to Ricardo's was paid on Tuesday last by Da/Jnr. and the writer in connection with Diesel engines. We…

scan0055 Report page detailing the performance characteristics of an Ante-Chamber engine design.
View original record -2- Rm/Edl/R.3.3.39. Ante-Chamber Design. (a) Fuel consumption worse than on D.I. engine, and is seldom better than .400 lbs/BHP/Hr. (b) The Comet III was relatively insensitive to fuel quality from…

scan0056 Engine design, focusing on swirl, volumetric efficiency, and supercharging in diesel engines.
View original record -3- Rm/Edl/R.3.3.39. A.E.C. also stated that the lubricating oil consumption was worse, and this point was admitted by Ricardo's. With reference to the Comet chamber, A.E.C. stated that the swirl…

scan0057 Review and comparison of fuel injection system designs and components for D.I combustion chambers.
View original record -4- Rm/Edl/R.3.3.39. Fuel Injection. For D.1 combustion chambers, central injection was stated to be preferable, this being borne out by information obtained from A.E.C. With ante-chamber engines, the…

scan0058 Pneumatic governors, piston and ring performance, and specifications of a blown Citroen diesel engine.
View original record -5- Pneumatic governors appear preferable to other types, and can be made to operate quite satisfactorily with a blower, a particular case shown us employing a centric supercharger driven by a single…

scan0059 The performance and design of various engine types, including two-stroke and diesel units.
View original record -6- The general feel and behaviour of the power unit was very poor. It was rough at all speeds and loads, performance was down, and the unit hunted badly at tick-over. The exhaust, however, did appear…

scan0060 Summary of a second 100-hour contract running test on a 4-stroke diesel engine.
View original record 1128 To By. from Rm/Ed. c. Da. c. Da/Jnr. Rm/Ed.3/MH.6.3.39. 4-STROKE DIESEL ENGINE. Herewith summary of second 100 hours contract running carried out on the above unit. Rm/Ed.

scan0061 Summary of a 100-hour contract test on a 4-stroke compression ignition engine.
View original record Rm/Ed.4/MH.6.3.39. SUMMARY OF SECOND 100 HOURS CONTRACT RUNNING ON C.I. 4-STROKE UNIT. Introduction. Running was commenced on the 17.7.31 and completed on the 5.10.32. Range of Investigation. (A)…

scan0062 Test report detailing conclusions on fuel nozzles, cylinder performance, and general engine conditions.
View original record -2- Rm/Ed.4/MH.6.3.39. General Conclusions - Cont'd. (3) A relatively low differential ratio is required on an R.A.F. fuel nozzle to give snappy operation, but considerably higher values are…

scan0063 Properties of airship diesel oils and subsequent tests on nozzle and piston development.
View original record -3- Fuels. Anglo-American Airship Diesel Oil. Spec. Gravity............... 0.850 Flash point.................. 210°F Initial boiling point...... 200°C Viscosity (Redwood No.1).. 35-40 secs. at 100°F.…

scan0064 Comparison and analysis of different fuel injector and nozzle designs, including Bosch and R.A.E. types.
View original record -4- dimensions were 7 holes of .010" dia. x .035" long and 130° cone angle. On inducing a specific swirl of 1.2 with the standard piston, a five hole R.A.E. nozzle .013" dia. x .050" long x 140° cone…

scan0065 Engine development experiments concerning injectors, injection pumps, air swirl, and volumetric efficiency.
View original record -5- Rm/Ed.4/MH.6.3.39. Comparison of Injectors - Cont'd. Due to the form of the jet, which has little divergence, this type of nozzle is unsuited to no-swirl conditions, but gives a BMEP of 92.6…

scan0066 Various engine tests and modifications including injection timing, piston experiments, and cylinder modifications.
View original record -6- Rm/Td.4/MH.6.3.39. Mechanical Efficiency. A check was carried out on previous results which were found to be substantially accurate. Effect of Injection and Exhaust Valve Timing on Starting.…

scan0067 Engine power loss issues and various mechanical failures.
View original record -7- Power Loss. A power loss of some 14 BMEP was experienced on the cylinder and was ultimately traced to (a) Loss of turbulence due to improved breathing with smoother inflow of air to cylinder.…

scan0068 Table detailing standard engine performance metrics at various RPMs.
View original record -8- Rm/Ed.4/MH.6.3.39. Standard Performance. R.P.M. | BMEP. | LBS/BHP/HR. | IMEP | LBS/IHP/HR. | FUEL INJN. CC/CYCLE. 2000 | 118.0 | .590 | 148.0| .470 | .357 | 102.0 | .455 | 132.0| .352 | .237 |…

scan0069 Summary of the running tests on a 4-stroke diesel engine, noting the programme is complete and the unit was changed to a two-stroke.
View original record /128 To By. from Rm/Ed. c. Da. c. Da/Jnr. Rm/Ed.5/MH.8.3.39. 4-STROKE DIESEL. Herewith summary of rest of running on the above unit. This completes the work done on this engine so far as available…

scan0070 Summary of final running tests and development on a 4-stroke diesel unit, covering investigations into injector overheating and injection types.
View original record Rm/Ed.o/MH.8.3.39. SUMMARY OF FINAL RUNNING ON 4-STROKE DIESEL UNIT. Introduction. The following covers development running from 6th. September 1932 to 15th. October 1933. Range of Investigation. (1)…

scan0071 Engine development tests for nozzles, valve sizes, and side injection configurations.
View original record -2- Nozzles. Lapped holes were not much better than plain holes, but an effect was observed if the holes were excessively rough due to poor drilling. Carbon deposit was also encountered, and after…

scan0072 Side injection and combined pump and injector systems, detailing nozzle configurations and performance results.
View original record -3- Side Injection - Cont'd. A differential nozzle using three horizontal holes .016" dia. x .032" long x 45° angle showed a power of 86.0 lbs/sq.in. with a specific cons. of .538 lbs/BHP/Hr. Combined…

scan0073 Proposal to supply the 8-cylinder engine unit for marine purposes due to low sales for private cars.
View original record Hs. from Rm. ? 1128. Rm3/R.23.5.39. 8-Cylinder Unit. Now that an endurance run has proved the reliability of the 8-cylinder unit, we feel that we should like to re-open the suggestion made in…

scan0074 Cover memo for an attached letter and sketch regarding a 3-cylinder 2-stroke C.I. engine.
View original record [Handwritten in red] EDWARDS 1128. [Handwritten in red] Please note [Handwritten in pencil] File Diesels [Handwritten initials circled in red] Cm To - Rm. from Wd. Wd.5/RS.27.5.39. 3-CYLINDER 2-STROKE…

scan0075 Letter from Armstrong Whitworth discussing valve timing and characteristics for a 3-cylinder engine.
View original record COPY. ARMSTRONG WHITWORTH SECURITIES COMPANY LTD., KADENACY DEPT., BUCKINGHAM AVENUE, TRADING ESTATE, SLOUGH, BUCKS. Our ref. HS.P.404. Your ref. Wd.10/RS. 25th May, 1939. H.Wood, Esq., Messrs.…

scan0076 Letter discussing masked valves, inlet swirl, and turbulence for a combustion chamber.
View original record - 2 - These last two figures are the actual opening, but we would recommend that you use masked valves which enables you to spread the mechanical opening over a longer period and still attain the…

scan0077 Proposal to proceed with an 8-cylinder engine for marine purposes.
View original record Hs. c. Sg. c. Wd. c. Rm. 1128 BY.3/G.26.6.39. 8 CYLINDER ENGINE FOR MARINE PURPOSES. I think the proposal put forward in Wd.24/RS. 27.6.39., that we should provide the auxiliary engines for the P.V.70…

scan0078 Visit from Engineer-Commander Grylls to discuss Admiralty requirements for marine units and gearboxes for Motor Torpedo Boats.
View original record To - Hs. from Wd. c. to Sg. c. to Dh. c. to Ht. c. to Rm. c. to Wd/Lm. Handwritten: By Wd.24/RS.27.6.39. Handwritten: Good news Handwritten: Rm VISIT OF ENGINEER-COMMANDER S.J.B. GRYLLS.…

scan0079 Supply of Marine Merlin and auxiliary engines for Admiralty M.T.B.s and other craft.
View original record - 2 - MARINE ENGINES. On the assumption that the Wilson gearbox will be satisfactory they propose to order 24 Marine Merlins from us for their next year's requirements of M.T.B.'s. They would prefer…

scan0080 Machinery requirements and testing procedures for 1939 Motor Torpedo Boats (M.T.B's).
View original record 428 Copy from Wd. Wd.14/RS.10.8.39. o. to Rm. MACHINERY REQUIREMENTS FOR 1939 M.T.B's. ----------------------------------------------- I have now received from the Admiralty the Statement of Machinery…

scan0081 Procedures for power, silence, vibration, and sea trials for an engine.
View original record - 2 - During the power trials (b) and (c) the brake horsepower, revolutions, the consumption of fuel and of lubricating oil, the quantity and rise in temperature of the circulating water and the rise…

scan0082 Page of miscellaneous trial requirements and component specifications, including for a dynamo and bilge pump.
View original record - 3 - (b) The engines will be required to run at the slowest practicable speed while propelling the boat for 15 minutes. (c) An astern trial, at about 3/4 the normal ahead revolutions, of 5 minutes…

scan0083 Auxiliary drive coupling, cruising engine, and gearbox requirements involving the Admiralty.
View original record - 4 - WD. WILL SAY The auxiliary drive coupling referred to in Item 17 of the Machinery Statement is, according to the Admiralty, immaterial as the boat builders will have to supply intermediate…

scan0084 Internal memorandum discussing the design, auxiliaries, and trials for a marine 8-cylinder power plant.
View original record 1128 By. from Rm. c. Wd. Rm11/R.11.8.39. MARINE - 8-CYL. POWER PLANT. With reference to Wd14/RS.10.8.39., we have handed drawings to Wd. indicating the clutch housing on which the gearbox must be…

scan0085 Letter to Messrs. Modern Wheel Drive Ltd. enclosing blueprints for a motor boat engine to be fitted with a hydraulic coupling.
View original record c. Rm. c. Wd. 1128 BY/NS.7/WB. 14th August, 1939. Messrs. Modern Wheel Drive, Ltd., 18, Victoria Street, LONDON, S.W.1. Dear Sirs, Re Engine for Motor Boat to be fitted with Hydraulic Coupling. The…

scan0086 Performance of nine popular diesel engines for transport.
View original record 1128 COPY FOR FILES. To Rm. from Rm/FWK. DIESEL ENGINES. Herewith is some information concerning the performances of some of the nine popular engines used for transport in Europe and America today. It…

scan0087 Comparative table of specifications for various manufacturers' engines.
View original record | | Dry wt. complete lb. | Rated HP at RPM. | Wt. per H.P. lb. | Displacement. ccs. | Fuel consumption lb/BHP/hr. | Speed Range R.P.M. | B.M.E.P. at RPM. lbs/sq.in.at RPM. | Max. Torque at RPM. |…

scan0088 Viability of using an 8-cylinder engine in Motor Torpedo Boats.
View original record To Rm. from Rm/Gry. Rm/Gry.6/MH.15.9.39. USE OF 8-CYLINDER ENGINE FOR M.T.B'S. I saw first of all Wd. who had handed over the whole job to Wd/LH. He told me that the people who approve of the use of…

scan0089 Visit to Vospers regarding their future requirements for 150 HP 8-cylinder engines for marine use in torpedo boats.
View original record To Hs. from Rm/Gry. Rm/Gry.1/MH.19.9.39. 8-CYLINDER ENGINE FOR MARINE USE. Yesterday I visited Commander Du Cane at Vospers to discuss Vosper's present and future requirements of 150 H.P. engines. In…

scan0090 Letter to T.C. Worth of Harborough Aircraft Manufacturing Co. regarding a marine engine project, test bed filters, and the Merlin filter.
View original record Rm.14/MH. 29th. September, 1939. T.C.Worth, Esq., Harborough Aircraft Manufacturing Co., MARKET HARBOROUGH. Dear Tom, Thank you very much for the trouble you have taken over this Marine engine project…

scan0091 Requirements for marine engines from the perspective of a yacht owner or skipper.
View original record To Rm. from Hs/AA. Copy to Jnr. Marine Engines. As you already know I had a long session with Jnr. on Monday January 1st. He will be reporting to you in due course. I thought I would like to let you…

scan0092 Recommendations for marine engine auxiliaries, mounting, and gearing.
View original record Hs./AA./T.10.1.40 -2- A bilge pump, with a clutch for engagement, should be incorporated in the engines. This pump should be, if at all possible, capable of pumping out bilges throughout the length of…

scan0093 Charging rates and gearboxes for yacht electrical and propulsion systems.
View original record Hs./AA./T.10.1.40 -3- CHARGING RATE. The most satisfactory type of yacht electrical equipment is, of course, a small independent charging plant for all lighting batteries, and a dynamo on the engines…

scan0094 Containing extracts from a letter discussing the market for marine engines.
View original record To:- Rm. 1125 Hs/AA.1/DK.11.1.40. Marine Engines. I give below extracts from a letter I have received from a Director - incidentally a RR owner - of a yacht yard in the south, that turns out probably…

scan0095 Home diesel market, yachtsman preferences, and potential engine sales opportunities.
View original record 2. The home Diesel market is of course difficult. Doubtless makers sell enough to make it worth while, but until production goes up and prices come down - and I feel this will happen on the export…

scan0096 Competitive petrol marine engines and the requirements for converting engines for marine units.
View original record 1128 To Rm. from Jnr. O. P. Anderson. Jnr.1/MH.15.1.40. PETROL MARINE ENGINES. Herewith is a list of competetive engines, the smaller ones can also run on paraffin, in which cases the comp. ratio are…

scan0097 List of design considerations for a twin-engine installation, including a layout sketch.
View original record -2- Jnr. 1/MH.15.1.40. (2) With two engines fitted the accessories are bad for accessibility and required all bringing to one side of the engine. A possible layout is:- [Drawing of two mirrored…

scan0098 List of technical design considerations and requirements for an engine, likely for marine application.
View original record -3- (7) Flame arresters are fitted as one of the fire safeguards, one is impressed by the dread of fire even after the designer has taken steps to overcome known possibilities. (8) A gear type water…

scan0099 Short note on the Perkins Diesel lorry engine specifications.
View original record -4- Jnr.1/MH.15.1.40. The Perkins Diesel have entered the market with their attractive lorry engine, it is six-cylinder 80 HP at 2800 r.p.m., 950 lbs. weight with reduction and reverse box. Jnr.

scan0100 Comparison table of various manufacturers' 4-stroke petrol marine engines with their specifications.
View original record Jnr.1/MH.15.140. MARINE ENGINES - 4-STROKE PETROL. MAKE B.H.P. REVS. BORE & STROKE. WEIGHT. PRICE. AUSTIN. 13-28 1000-2200 6 cyl. 2.58 x 3.33 580 lbs. £113. BROOKE. 30-36 1000-1200 6 cyl. 3.625 x 4.75…

scan0101 Specification table comparing different engine makes such as Penta and Scripps.
View original record -2- MAKE | B.H.P. | REVS. | BORE & STROKE. | WEIGHT. | PRICE. PENTA | 30-75 | 1000-2700 | 6cyl. 3.312 x 4.312 | 860 | SCRIPPS. | 30-96 | 1000-3600 | 8cyl.(v)3.062 x 3.75 | 600 | £145 do. | 43-120 |…

scan0102 Summary of the value of marine engines imported into Great Britain from various countries in 1938 and 1939.
View original record 1128 Hs/AA.1/DK.23.1.40. MARINE FILE Figures supplied by the Society of Motor Manufacturers and Traders Limited, show that during the first 8 months of 1939, the following amounts were spent in…

scan0103 Letter to The Zenith Carburetter Co. Ltd. requesting information on a duplex up-draught carburetter.
View original record 1128 Rm.4/MH. 1st. February, 1940. C.H.Fisher, Esq., The Zenith Carburetter Co. Ltd., Honeypot Lane, Stanmore, MIDDX. Dear Mr. Fisher, Can you please tell me whether there is a Duplex up-draught…

scan0104 Minutes of a conference on a marine unit detailing various action points for component sourcing and development.
View original record 1128 To Jnr. from Rm. c. AA. Rm.1/MH.1.2.40. MINUTES OF CONFERENCE ON MARINE UNIT. As a result of a Conference on the Marine Unit held at the Squash Court on Thursday, February 1st./40, AA. was asked…

scan0105 List of marine engine components and data wanted from various suppliers in the U.S.A.
View original record 1128 COPY FOR MARINE FILE. WANTED FROM U.S.A. (1) Data of Jocs gears. Snow & Petrelli Mfg. Co. New Haven Conn. (2) Data of twin disc marine gears. Twin disc clutch Co. 1369 Racine St. Racine…

scan0106 Marine engine development, including discussions with Parsons' Engineering Company about gearboxes and visits to yacht companies.
View original record Rm 1128 Hs/AA.4/DT.3.2.40. MARINE ENGINES. Last Monday the 29th ultimo, I spend a considerable time with Mr. Garrod of the Parsons' Engineering Company, Southampton. He, Mr. Parsons and their chief…

scan0107 Firm's use of American engines in cruisers and the potential for a trial of an English engine.
View original record -2- This firm produce practically the only high class express cruiser in this country, and use American engines, chiefly Gray, because there is not suitable English…

scan0108 Letter from Zenith Carburetter Co. Ltd regarding the availability of Stromberg and Solex carburetters.
View original record /~26S.v.r.G.v. Marine 1128 The ZENITH CARBURETTER CO. LTD CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS ZENICARBUR. PHONE. LONDON CODE. A.B.C. 5th EDITION HONEYPOT…

scan0109 Letter from Zenith Carburetter Co. regarding the availability of twin updraught carburetters.
View original record THE ZENITH CARBURETTER CO. Limited. Sheet No. 2 Messrs. Rolls-Royce Ltd, Derby. 5.2.40. ...from France, and I have asked for drawings. As regards Zenith, we have never made a twin updraught in this…

scan0110 Letter regarding a drawing for a 40mm Twin Vertical Solex Carburetter and its maximum choke tube size.
View original record 112-8 Marine The ZENITH CARBURETTER CO LTD CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS ZENICARBUR, PHONE, LONDON CODE A.B.C. 5TH EDITION HONEYPOT LANE STANMORE…

scan0111 Article detailing the features and specifications of the new R.N. Diesel Engine.
View original record NEW R.N. DIESEL ENGINE Russell Newbery & Co., Altrincham, have introduced a range of engines with new framing and a higher cylinder output Showing C-frame and through bolt construction of the new…

scan0112 Article with schematics describing the horizontal diesel engines on the Voith-Schneider propelled ferry, 'Abercraig'.
View original record HORIZONTAL DIESELS ON SHIPBOARD This article is complementary to one published in December and is mainly a description of the latest, and in many ways the most interesting, example of the application…

scan0113 Minutes of a conference discussing the conversion of an 8-cylinder petrol engine for marine use.
View original record 1128 To Rm. from Jnr. c. to Hs/AA. Jnr.1JH.8.4.40. Technical Minutes of Conference on Petrol Marine Unit. present Rm. AA. & Jnr. (1) The project is to take the 8 cylinder engine and convert it for…

scan0114 List of numbered design considerations and decisions for an engine and its components.
View original record -2- and into the engine, the outlet from the engine being at the front end of the cylinder head, I forsee some interesting design work in making a good water and exhaust joint between the manifolds…

scan0115 The requirements for a change over switch and an ignition switch.
View original record -3- Jnr,1/JH.8,1,40 (15) It was thought that a change over switch for the coils was too much of an elaboration, the wiring on our coils can be changed fairly quickly, (16) A simple ignition switch is…

scan0116 Request to Mr. Turner of The Zenith Carburetter Co. Ltd. for a Stromberg carburetter model and drawings.
View original record 1038 Rm.7/MH. 9th. February, 1940. T.L.Turner, Esq., The Zenith Carburetter Co. Ltd., Honeypot Lane, Stanmore, MIDDX. Dear Mr. Turner, Many thanks for your letters. I should like to try the big…

scan0117 Letter from Zenith Carburetter Co. Ltd regarding the sourcing of a UU-3 carburetter and drawings from America.
View original record 1033 The ZENITH CARBURETTER CO LTD CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS: ZENICARBUR PHONE LONDON CODE A.B.C 5TH EDITION HONEYPOT LANE STANMORE MIDDLESEX…

scan0118 Meeting with Walton Yacht Works regarding the supply of 6 & 8 cylinder marine engines for their express cruisers.
View original record To Rm. 1128 Rm/AA.10/B.13.2.40. WALTON YACHT WORKS LTD. On the afternoon of Saturday, the 10th inst., I called and saw Mr. A. E. Hagg, Managing Director of the above firm. Incidentally, he is the…

scan0119 Article detailing new Kermath and Fairbanks-Morse marine engines for the 1940 model year.
View original record One of Kermath’s additions to last year’s successful Sea Chief Model is this 6-cylinder engine developing 96 hp. at 3600 r.p.m. New Kermath Specials For 1940 Three hitherto unannounced engines are…

scan0120 Page from a publication detailing various marine engines for 1940 from manufacturers including Briggs & Stratton, Chris-Craft, and Scripps.
View original record Briggs & Stratton Inboards The Briggs & Stratton Corp., of Milwaukee, is featuring for 1940 five models of inboard motors, ranging from 1/2 to 4 hp. Each is of 4-cycle design and is air-cooled. A…

scan0121 Article detailing new marine engines from Scripps and Chrysler, presented at the 1940 Motor Boat Show.
View original record new equipment on the 30, 90, and 100 series engines. Their cooling systems are now equipped with Auto-Temp, a thermostatic device which automatically controls and maintains the engine temperature…

scan0122 Page from a publication reviewing 1940 marine engines from manufacturers Sterling, Gray, Atlas Imperial, and Buda.
View original record Two Sterling Petrol engines drive the 47' "Sea Otter" 18 m.p.h. She was designed by John G. Alden and built by Quincy Adams Yacht Yard easily, and holding the seats without warping. Two Zenith…

scan0123 Page from a publication detailing various marine engines and their specifications from the 1940 show.
View original record hibit, is a single-cylinder 3 1/8" bore by 3 3/4" stroke marine auxiliary unit rated to develop 5 hp. at 1800 r.p.m., direct-connected with a 125-volt 3 kw. electric generator. A 3-cylinder, 9 kw.,…

scan0124 Magazine page detailing various marine engines, including models from Buda, Chrysler, and Chris-Craft, with their specifications and features.
View original record Buda Exhibits Eight Models Plus When you speak of Buda you think of Diesel. That is, most yachtsmen do, probably because “Budajdiesel” rolls off the tongue with greater euphony than “Budagasoline.”…

scan0125 Page from a publication detailing various marine diesel and petrol engines from multiple manufacturers.
View original record The Mack Mariner Diesel, new this year, is a 6-cylinder engine shown in two models, one of 100 hp. at 1800 r.p.m., the other, of 120 hp. Sterling Engines The Sterling Engine Co., of Buffalo, N. Y.,…

scan0126 Page from a publication detailing new marine diesel engines from various manufacturers for the 1940 Motor Boat Show.
View original record Left, exhibited for the first time at the 1940 Show is this 2-cylinder 2-cycle marine Diesel electric generating set, one of the U. S. Motors Corporation's new products. Below is the 10 kw. Diesel set…

scan0127 New supercharged diesel engines and marine electric plants from various manufacturers.
View original record Above, left, the single cylinder Model AKM air-cooled engine, one of the seven models displayed by the Wisconsin Motor Corporation, is rated 4.2 hp. It is fitted with Joe's gear. Right, the 2:1…

scan0128 New marine engines from Waukesha, Red Wing, and Arnolt, with images and specifications.
View original record Waukesha Shows New Hesselman Type Engine The Waukesha Motor Company, of Waukesha, Wis., returned to the marine field in time to exhibit at the Motor Boat Show last year. This year its exhibit includes…

scan0129 Article reviewing new Palmer Diesel engines and Universal Sea-Lion series marine engines.
View original record the base plate, for raising and lowering the propeller assembly. In this installation, it is necessary to use a two-blade propeller, which must be in a vertical position before drawing the assembly up…

scan0130 Showcase of marine auxiliary units and engines from Reiner, Hall-Scott, and Red Wing.
View original record Reiner Auxiliary Units John H. Reiner & Co., Inc., of New York, is showing two Reiner Diesel marine auxiliary units, together with a 10 hp. Stover 4-cycle full Diesel engine for generating, pumping…

scan0131 Publication page detailing new marine engines and related products for the 1940 model year.
View original record The Model IM Superior, shown by its builder, the National Supply Co., is a Diesel engine manufactured with 5, 6 or 8 cylinders. It is 8½” bore and 10½” stroke and is rated 195, 235 and 310 hp. at 700…

scan0132 Parsons Marine Reverse Gears, including lubrication systems, gear sizes, and blueprints for B.60 and B.80 engines.
View original record 1128 To Rm. ~~c.c to Jnr.~~ Rm/AA.2/B.16.2.40. PARSONS MARINE REVERSE GEARS. I have to-day received a number of blue prints from Parsons Engineering Co., Ltd., and am discussing them with Jnr. this…

scan0133 Listing various print and sheet numbers for the design of an H SIZE GEAR.
View original record -2- To Rm. c. to Jnr. Rm/AA.2/H.16.2.40. H SIZE GEAR. Print No. 2470, shows the external view of the internal working portions similar to the FA print and subject to the connection to the engine and…

scan0134 Letter from Zenith Carburetter Co. Ltd regarding the availability of a 48mm carburetter.
View original record 1033 The ZENITH CARBURETTER CO LTD HONEYPOT LANE STANMORE MIDDLESEX CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS: ZENICARBUR PHONE, LONDON. CODE: A.B.C. 5th EDITION…

scan0135 Enquiry to Zenith Carburetter Co. regarding the availability and forwarding of carburettors.
View original record 1083 Rm/CTS.S/MH. 1st. March, 1940. T.L.Turner, Esq., The Zenith Carburetter Co. Ltd., Honeypot Lane, Stanmore, MIDDX. Dear Mr. Turner, With reference to your letter dated 29th. February. We would…

scan0136 Letter from The Zenith Carburetter Co. Ltd. regarding the availability of carburettors.
View original record 1128 The ZENITH CARBURETTER CO LTD HONEYPOT LANE STANMORE MIDDLESEX ADJOINING QUEENSBURY UNDERGROUND STATION CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY. TELEGRAMS:…

scan0137 Letter from The Zenith Carburetter Co. about the low demand for a specific vertical carburetter.
View original record THE ZENITH CARBURETTER CO. Limited. Sheet No. 2 W. A. Robotham Esq, Derby, 4.3.40. ...to ask if they have any other vertical carburetter that would correspond with the A.A.V.25, but looking through…

scan0138 Development and market potential of petrol marine engines.
View original record To Rm. PETROL MARINE ENGINES. It is suggested that two types of units should be produced - one 8-cylinder and the other 6-cylinder; these engines to be based on the cast-iron units from the…

scan0139 The increased import of American engines due to the war and the opportunity to supply marine units for Admiralty patrol boats.
View original record -2- To Rm. These figures show that for the part of 1939 under consideration, there has been an increase in the imports of engines from America, due, undoubtedly, to the possibility of war. Visits to a…

scan0140 Letter from The Zenith Carburetter Co. Ltd regarding difficulties sourcing twin updraught carburetters from the USA, likely for a marine engine.
View original record C.T.S File (marine engine) 1128 The ZENITH CARBURETTER CO LTD CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS: ZENICARBUR PHONE. LONDON. CODE A.B.C. 5TH EDITION…

scan0141 Pricing petrol marine engines to compete against American engines.
View original record 1128 AA. Rm.5/ML.11.3.40. PETROL MARINE ENGINES. With reference to the above, I would like you to quote exact particulars of what we have to compete with in the way of price in order to sell against…

scan0142 Two American pamphlets on diesel engines in relation to projected 2-cycle work.
View original record 1128 Jnr. Rm.5/ML.12.3.40. Diesel engines. Herewith 2 pamphlets on American They are not of much interest in connection with our projected 2-cycle work, but you may be able to get some information…

scan0143 Creation of a proof booklet with illustrations to justify a recommended procedure.
View original record AA. Rm.6/ML.14.3.40. With reference to Rm/AA.6/B.5.3.40. the matter contained therein is quite sufficiently comprehensive and we should now get a proof booklet produced by Walker. My object is to…

scan0144 Admiralty requirements for marine engines, including sump pumps, starter pinions, and belt drives.
View original record To Rm/Jnr. c. to Rm. Marine 1128 Rm/AA.9/B.19.3.40. This is to confirm my telephone conversation this morning when I mentioned one or two points which the Admiralty insist upon in Marine engines -- 1.…

scan0145 Confirming Admiralty requirements for marine engines, discussing sump pumps, starter pinions, and belt drives.
View original record 1128 Marine file To Rm/Jnr. C. to Rm. Rm/AA.9/B.19.3.40. This is to confirm my telephone conversation this morning when I mentioned one or two points which the Admiralty insist upon in marine engines…

scan0146 Memo regarding a visit to 'Squash Court' detailing three points for discussion.
View original record To Eo. 1128 Rm/7/ML. 29.3.40. re Visit to Squash Court. (1) Junior rationalised Gearbox. change speed mechanism. (2) Spare Wheel at the Rear. (3) Universal Coupling between dynamo & Coolant. (Marine…

scan0147 Letter from Armstrong Whitworth Securities to E.W. Hives regarding the development of a compression ignition engine.
View original record ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENG, SLOUGH Our…

scan0148 Letter from Armstrong Whitworth Securities Co. Ltd. concerning an agreement for the development of Road Transport Compression Ignition Engines.
View original record ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED. TELEPHONE: VICTORIA 2233 TELEGRAMS: ZIGZAG SOWEST LONDON CABLES: ZIGZAG LONDON WORKS: NEWCASTLE-UPON-TYNE THAMES HOUSE, WESTMINSTER, LONDON, S.W.1. 8th…

scan0149 Page 2 of a letter addressed to E.W. Hives, Esq.
View original record -2- E.W. Hives, Esq. With kind regards, Yours sincerely, H. Sammons. 8/3/40.

scan0150 Letter from Armstrong Whitworth proposing a collaboration on the development and licensing of compression ignition engines.
View original record ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED. TELEPHONE: VICTORIA - 2233 TELEGRAMS: ZIGZAG SOWEST LONDON CABLES: ZIGZAG LONDON WORKS: NEWCASTLE-UPON-TYNE THAMES HOUSE, WESTMINSTER, LONDON, S.W.1.…

scan0151 Letter from Armstrong Whitworth Securities proposing lump sum and royalty payment terms for a Road Transport Compression Ignition engine license.
View original record -2- Messrs. Rolls Royce Ltd. 8/5/40. We have left out of the License Agreement how the lump sum payments are to be made, as we feel the wording of this clause should be agreed by our respective…

scan0152 Legal deed outlining a licensing agreement between multiple parties for the manufacture and sale of patented engines.
View original record THIS DEED made the of One thousand nine hundred and forty between Sir W.G.Armstrong Whitworth & Company (Engineers) Limited, whose registered office is situate at 24, Stowell Street,…

scan0153 License agreement page detailing terms, royalties, and duration for using the 'Kadenacy System' in engines.
View original record -2- Licensees as hereinafter provided and also in consideration of the royalties hereinafter reserved and made payable of the covenants and agreements by the Licensees hereinafter contained the…

scan0154 Page from a licensing agreement detailing royalty payments and accounting procedures for the Kadenacy System.
View original record -3- three per centum of the sales price ex works, of all engines or engine parts embodying any feature of the Kadenacy System manufactured and sold by the Licensees or their Sub-Licensees hereof. The…

scan0155 Page from a legal agreement outlining terms for sub-licensees, patents, royalties, and potential infringements.
View original record -4- Sub-Licensees, and shall have affixed thereto ina permanent manner a Licence Plate in a form approved by Armstrongs. 8. THE parties hereto of the first four parts agree not to grant Licences to…

scan0156 Page from a licensing agreement regarding patent infringement, fees, and improvements to the Kadenacy System.
View original record -5- and that proceedings against the infringers will have reasonable prospects of success then (unless circumstances exist which would make it imprudent to take proceedings or unless Armstrongs…

scan0157 License agreement document detailing obligations between parties regarding patents and improvements to the Kadenacy System.
View original record -6- and pass the benefit thereof on to other Licenses, provided always that the Licensees shall be under no obligation to disclose to Armstrongs any improvements which they or any of their officers or…

scan0158 Page 7 of a licence agreement detailing clauses for payment, confidentiality regarding the Kadenacy System, and procedures for giving notice.
View original record -7- manufacture in the particular country concerned on terms similar to those herein contained on condition that the Licensees shall guarantee the performance and observance by such Sub-Licensee of…

scan0159 Arbitration clause followed by a schedule of United Kingdom patent numbers.
View original record -8- 20. ALL questions or differences whatsoever which shall at any time hereafter arise between the parties hereto touching or concerning these presents or the construction meaning operation or effect…

scan0160 Secret memo discussing staffing and responsibilities within the Marine Section engine design team.
View original record SECRET. [Handwritten]: 1 Copy 1128 [Handwritten]: Staff. V/1128 To Rm. from Ev. Ev.2/JH.14.3.40. re Marine Section. With respect to your Rm.2/ML.12.3.40. (headed Weight Analysis) we confirm that…

scan0161 Meeting with the Admiralty about engine specifications for motor boats.
View original record Marine To Rm. or to Rm/Jnr. Rm/AA.1/B.1.4.40. filed separately On Friday last, the 29th ult., I called and saw Commander Grylls, Head of the Engineering-Chief's Department at the Admiralty at Bath. He…

scan0162 And comparing different manufacturers of Marine Reverse Gears.
View original record 1128 To Rm. Rm/AA.19/B.2.4.40. MARINE REVERSE GEARS. You may remember that you, Jnr. and myself had a conference some time ago when we discussed Marine Reverse Gears. It was arranged that we should…

scan0163 The potential sale of two marine engines to the Admiralty and the provision of hull blueprints.
View original record 1128 To Rm. Rm/AA.16/B.4.4.40. MARINE ENGINES Commander Grylls informs me that he hopes to be able to send us blue prints of a 35' hull and a 45' hull showing the installation of power plant.…

scan0164 Order numbers for the development of Marine Engines - Chassis Type.
View original record To Rm. from G/Rb. 7128 G/Rb.8/B/1C/E.5.4.40. Marine Engines - Chassis Type The following order numbers have been taken out for development work on the above. 52527 Machining 52528 Fitting 52529 Tools…

scan0165 Use of a governor and Vertex Magneto for marine engines.
View original record 1128 To Rm. Rm/AA.3/B.5.4.40. MARINE ENGINES. I mentioned to you the other day that Commander Grylls had said he would like to see a governor of some sort fitted to Marine Engines so as to prevent…

scan0166 The programme to install marine engines into Admiralty and Civil boats.
View original record File 1128 Mv. from Rm. c. Jnr. c. Rm/AA. Rm.1/ML.8.4.40. MARINE ENGINES. It will be remembered that the work necessary on this job was outlined in the Minutes of the Meeting held on 1st. February,…

scan0167 List of design and action points to be considered in finalising the designs for an experimental engine.
View original record - 2 - Cont'd. Rm.1/ML.8.4.40. The following points have arisen which will have to be taken into consideration in finalising the designs. 1. More as a gesture to placate the die-hards at the Admiralty…

scan0168 Page outlining questions about financial contributions for marine units and requesting a completion date for the designs.
View original record - 3 - Cont'd. (a) What contribution the Admiralty and Mr. Hagg will make towards the financial cost of the units and their installation. (b) How much running they will guarantee to put in in the first…

scan0169 Memo regarding the design work timeline for a marine engine.
View original record 1128' To RM. 9. IV. 40. MARINE ENGINE The design work will take 8 working weeks. Rm JNR. There is a holiday in between.

scan0170 Proposition to fit 8-cylinder marine units into tenders for Imperial Airways.
View original record 1128 To Rm. Rm/AA.4/B.9.4.40. Re: 8 Cylinder Marine Units for Imperial Airways I had a discussion with Mr Hagg of the Walton Yacht Works on Saturday afternoon last. He is now putting up a provisional…

scan0171 The decision to focus on the 8-cylinder marine engine and drop the 6-cylinder unit for the Navy and Imperial Airways.
View original record 1128 Rm. or to Jmr Rm/AA.5/P.12.4.40. MARINE ENGINES. With reference to our discussion this morning regarding the above units. The position at the moment is that we should concentrate on proceeding…

scan0172 Letter to H. Sammons of Armstrong Whitworth Securities Co. regarding a proposed Kadenacy patent agreement.
View original record 112 Rm.16/ML. 15.4.40. H.Sammons,Esq., Armstrong Whitworth Securities Co., Thames House, Westminster. Dear Sammons, I have had several talks with Hs. since he received your letter of the 8th. March,…

scan0173 Decision to notify Hagg of choosing Imperial Airways over the Admiralty for marine engines.
View original record Rm/AA. from Rm. c. Jnr. Rm.5/ML.15.4.40. MARINE ENGINES. We agree with Rm/AA.5/P.12.4.40. We think that we should notify Hagg that we have chosen Imperial Airways in preference to the Admiralty and…

scan0174 Price and specification comparison of British & American marine engines against the B.80 and B.60 models.
View original record 1128 Rm. Rm/AA.8/P.15.4.40. PRICES OF BRITISH & AMERICAN MARINE ENGINES COMPARABLE WITH B.80 AND B.60. Below I give a list of prices of various high class engines, as compared with the estimate of…

scan0175 With a diagram reviewing the Serck oil cooler for a Marine B.80 engine test.
View original record 1128 To Rm. c. to Rm/AA. Jnr.23/JH.18.4.40. Oil Cooler Test Marine B.80. The Serck cooler to WS.6027 in my opinion is too restricted for water flow, the inlet and outlet being about .750 dia. where as…

scan0176 Letter from Armstrong Whitworth Securities Co. Ltd. to W.A. Robotham acknowledging a previous letter and promising a follow-up.
View original record ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. 1128 ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENG, SLOUGH…

scan0177 And agreeing on the pricing of marine engine units.
View original record Rm/AA. from Rm. Rm.18/ML.19.4.40. PRICES OF MARINE ENGINE UNITS. With reference to Rm/AA.8/P.15.4.40. I think your figure of £425 and £375 for the 8 and 6 cylinders respectively, are quite reasonable.…

scan0178 Preliminary test report on the water circulation restriction of a Marine BO Serck Oil Cooler.
View original record 1128 To Jmr. c. to Rm/AA. Rm/OTS.7/JH.19.4.40. Marine BO, Serck Oil Cooler. No.D.34906. We have carried out a preliminary test to determine the amount of restriction to the normal water circulation…

scan0179 Changes to marine oil fittings, specifically relief valves, a sump pump, and the oil flow system.
View original record To Rm. c. to Rm/HH. [Handwritten]: S 1128. file Jur.1/JH.22.4.40. B.80 Marine Oil Fittings. Herewith PL.184 showing the relief valves, the new position of the General bye-pass filter and the low…

scan0180 Letter from Armstrong Whitworth Securities Company arranging a meeting in Derby to discuss an alternative scheme.
View original record 1128 ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENG, SLOUGH…

scan0181 Letter to H. Sammons regarding an appointment and unexpected sick leave.
View original record Rm.6/ML. 25.4.40. H.Sammons,Esq., Armstrong Whitworth Securities Ltd., Slough. Dear Sammons, I can see you on Saturday morning next, April 27th. I am very sorry this has given you even less than the…

scan0182 Requirements for a new starter motor for a B.80 Marine Engine.
View original record To Rm. from Jnr. c.c. to Rm/RG. c.c. to Rm/AA. Handwritten: C.T. File f/H. 1128 Starter Motor for B.80 Marine Engine. On this engine the flywheel is smaller in diameter than on the car, therefore, we…

scan0183 Stating that The Parsons Engineering Co. cannot produce gearbox castings and stub shafts for a marine reverse gear.
View original record Rm. 1128 AA.1/P.26.4.40. MARINE REVERSE GEAR. I have just received a letter from The Parsons Engineering Co., Southampton, stating that they are not prepared to do the necessary pattern making and…

scan0184 Crankcase modification on marine engines to accommodate a starter motor.
View original record Rm/CTS. from Rm. Rm.7/ML.26.4.40. 1/28 MARINE ENGINES. Ev. tells me that they have called for a modification to the crankcase on the marine engines in order to enable the starter motor to be…

scan0185 Recommendation from the Admiralty to fit a Scintilla Vertex Magneto with a speed-limiting device, with a proposal to use it on the B.80 Marine Engine.
View original record Rm.. 1128 AA.6/P.24.4.40. You will remember that recently when I saw the Admiralty at Bath they mentioned that a Speed-limit Device or governor would be useful on a Marine Engine. I found there was a…

scan0186 Testing of a speed limit device or governor for marine engines.
View original record Rm/AA. from Rm. Rm.11/ML.26.4.40. With reference to your Memo. AA.6/P.24.4.40. re Speed limit device or governor, for marine engines: this is being tried on the Test Bed. Rm.

scan0187 Explanation of the differences in the water and oil systems between the B.80 Marine engine and the standard motor car engine.
View original record To. Rm./AA c. Rm/HH. 1128 Jnr.14/JH. 22. 4. 40. B. 80. Marine Herewith FL. 176. The object of sending you this drawing is to explain how the Marine unit differs from the motor car engine. Some time…

scan0188 Letter from Armstrong Whitworth Securities Company Limited regarding a delayed response and arranging a future meeting.
View original record ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. 1128 ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENG, SLOUGH…

scan0189 Instructions for a test on a marine engine cooling system arrangement.
View original record 112-8 C. Caisley from Rm/CTS. c. Rm/AA. c. JNR. Rm/CTS.3/JMS.3.5.40. As soon as you have cleared up the remaining details on the cylinder head job, the following test should be carried out: MARINE 80.…

scan0190 Details on a variable speed electric motor driving a second water pump for intercooler cooling.
View original record -2- To begin with, the second water pump can be driven by the variable speed electric motor, by which means we shall be able to decide the cooling factor necessary (necessary flow through the…

scan0191 Letter from the Experimental Department to Messrs. Lucas enquiring about a starter motor for a marine engine.
View original record 1128 ? Experimental Department. Rm/RC.10/JMS. 1.5.40. Messrs. Lucas, Great King Street, BIRMINGHAM. For the attention of Mr. B. G. CRUPPER. Dear Sirs, We require a Starter motor for a marine engine,…

scan0192 Design specifications and limitations for a new starter motor for the B.80 Marine Engine.
View original record File To Rm. from Jnr. c.c. to Rm/RC. c.c. to Rm/AA. Jnr.14/JH.25.4.40. s Starter Motor for B.80 Marine Engine. On this engine the flywheel is smaller in diameter than on the car, therefore, we are…

scan0193 Relocation of a thermometer on the B.80 Marine Unit cylinder head.
View original record 1128 Rm/C981/6-5-40 To Rm. C. to Rm/MR. Jnr.17/JH.30.4.40. B.80 Marine Unit. Herewith PL.201. showing the location of the thermometer in the cylinder head. It will be seen that we have found a new…

scan0194 Letter confirming the dispatch of engine drawings and the subsequent delivery of the engine itself.
View original record FILE 11287 Rm/CTS.1/ML. 1.5.40. F.M.Aspin,Esq., Elton, Bury. Dear Sir, Further to our letter dated April 27th. we send you herewith the following drawings, which will give you a better idea of the…

scan0195 B.80 Marine induction pipe, rejecting a 'Ram Horn' design due to defects and reverting to a Solex up-draught carburetter.
View original record To Rm. o. to Rm/CTS. (text crossed out) B 1158 (handwritten and crossed out) Jnr.14/JH.7.5.40. Marine - B.80 Induction Pipe - PL.217. Referring to Mr. Fishers suggestion in fitting a down draught…

scan0196 High positioning of a Scintilla Magneto on an 8-cylinder engine and the resulting need for an additional support stay due to vibration concerns.
View original record To Rm. c. to Rm/AA. [crossed out] c. to Rm/RC. [crossed out] c. to Rm/HH. [crossed out] Jnr.9/JH.10.5.40. B.80 Marine - Scintilla Magneto. The drawing that has been made by Rm/HH. showing the above…

scan0197 Expressing a lack of enthusiasm for the Scintilla magneto and suggesting modifications to the in-house distributor instead.
View original record Jnr. from Rm. Rm.8/ML.13.5.40. I have never been very enthusiastic about the Scintilla magneto and feel sure that if we wish to limit the speed of the engine by means of the ignition equipment we can…

scan0198 Potential customers for B.80 marine engines, including Imperial Airways and Messrs. Samuel White.
View original record Rm. Rm/AA.2/F.14.5.40. 1138 re B.80 MARINE ENGINES - and A. E. HAGG ESQ. I have this morning received a letter from Mr. Hagg stating that he has now had a discussion with Imperial Airways, and he…

scan0199 Letter from marine engineers W. & J. Tod Ltd. discussing the market for a new 8-cylinder marine engine.
View original record CONTRACTORS TO THE ADMIRALTY, AIR MINISTRY, WAR OFFICE, INDIA OFFICE, ETC. MARINE ENGINEERS BOAT BUILDERS Designers and Builders of MOTOR CRUISERS MOTOR LAUNCHES W.&J. TOD LTD. SAILING AUXILIARIES…

scan0200 Page 2 of a letter from W. & J. TOD LIMITED regarding an experimental engine and fuel types.
View original record -2- or such a fuel as paraffin. We think the cheaper the fuel, the more likely the sales. Should you go ahead with this engine even only in it's experimental form, we should very much like to have…

scan0201 Parts required for a B.80 Marine Water Cooled Exhaust Manifold, scheme PL.169.
View original record COPY 1128 Rm/HH.2/JH.21.5.40. Rm. C.E.V. The particulars given on this memo have not been issued. B.80. Marine. Section 5230 - Exhaust Fittings. PL.169 Water Cooled Exhaust Manifold. Please receive…

scan0202 Letter from the Experimental Department discussing safety fuel options and potential engine developments.
View original record 1138. Experimental Dept. Rm/AA.2/JMc. 22nd May, 1940. W. & J. Tod Ltd., Ferrybridge, WEYMOUTH. Your reference NWW/ER. Dear Sirs, Thank you for your letter of the 18th inst. We are extremely grateful…

scan0203 Letter from Armstrong Whitworth Securities to W.A. Robotham concerning a follow-up and well wishes.
View original record 1128 ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENG, SLOUGH…

scan0204 Parts for a thermometer installation in the cylinder head of a B.80 Marine Engine.
View original record Rm. from Rm/HH COPY 1128 Rm/HH.4/23.5.40 The particulars given on this memo have not been issued. B.80 Marine Engine. PL.201. Location for Thermometer in Cylinder Head. Sec.5050. Cylinder Head. The…

scan0205 Letter to H. Sammons regarding a meeting, explaining that development work has stopped due to war production.
View original record Rm.4/ML. 24.5.40. H.Sammons,Esq., Armstrong Whitworth Securities Ltd., Kadenacy Department, Buckingham Avenue, Slough. BUCKS. Dear Sammons, Thank you for your letter of 22nd May. I can see you Monday…

scan0206 Letter from Armstrong Whitworth Securities Company Limited regarding a potential visit and the development status of a road vehicle engine.
View original record ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. 112-8 ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENZ, SLOUGH…

scan0207 Letter discussing the temporary suspension of a road vehicle engine project due to the international situation and shifting manufacturing to aviation.
View original record 1128 Rm.5/ML. 30.5.40. H.Sammons,Esq., Armstrong Whitworth Securities Ltd., Kadenacy Department, SLOUGH. Bucks. Dear Sammons, Thank you for your letter of May 28th. Going ahead on development work for…

scan0208 Comparing performance data for 2-stroke Compression Ignition and Petrol Injection engines.
View original record 1128 To - Rm. from Wd. Wd.8/RS.31.5.40. 2-STROKE C.I. AND P.I. ENGINES. -------------------------------- With reference to your request in Rm.3/ML.25.5.40, the only useful work done in this country to…

scan0209 Request for information on pumps and nozzles for 2-stroke engines.
View original record - 2 - as applied to 2-strokes. Would you please ask him to get as much information as possible on pumps (for 2-stroke speeds up to 3500 r.p.m.), nozzles (preferably non-drainage types) and devices for…

scan0210 Forwarding a letter from Messrs John Morris & Co. (Gosport) Ltd. regarding the development of marine units.
View original record Rm. from Rm/AA. 1128 Rm/AA.4/ML.1.6.40. I think the attached copy of a letter from Messrs John Morris & Co.(Gosport) Ltd., might interest you for future development of the marine units. Rm/AA.

scan0211 Letter from Armstrong Whitworth Securities Company Limited to W.A. Robotham acknowledging a letter and promising a follow-up.
View original record 1128 ASSOCIATED COMPANY: SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) LTD. ARMSTRONG WHITWORTH SECURITIES COMPANY LIMITED KADENACY DEPARTMENT. TELEPHONE: SLOUGH 20295/6 TELEGRAMS: KADENG, SLOUGH…

scan0212 The progress status of various components for the Clan Experimental marine engine programme.
View original record 1128 Rm/AA. from Rm/HH. c.Rm. Rm/HH.1/JMS.11.6.40. Clan Experimental. With reference to your verbal request for the position of the marine engine programme, it will be seen from the following notes…

scan0213 Progress on various components for the Clan Experimental marine engine programme.
View original record 1128 Rm/AA. from Rm/HH. o.Rm. Rm/HH.1/JMS.11.6.40. Clan Experimental. With reference to your verbal request for the position of the marine engine programme, it will be seen from the following notes…

scan0214 Letter to The Zenith Carburetter Co. regarding an advertisement for Stromberg Updraught Marine Carburetters.
View original record 1128 Rm.3/JMS/12.6.40. CTS. Experimental Department. 12.6.40. The Zenith Carburetter Co., Honeypot Lane, STANMORE, Middlesex. Dear Mr. Turner, We note an advertisement in the May issue of Motor…

scan0215 Letter from Zenith Carburetter Co. Ltd regarding Stromberg marine and twin updraught carburetters.
View original record 1033 The ZENITH CARBURETTER·CO·LTD CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS ZENICARBUR, PHONE, LONDON CODE A.B.C. 5th. EDITION HONEYPOT LANE STANMORE MIDDLESEX…

scan0216 Follow-up letter from Solex Ltd. regarding a sample of a Dual Carburettor.
View original record TO RM/CTS 1128 TELEGRAMS "SOLEXCARB, NORWEST, LONDON" TELEPHONES PADDINGTON 5011 (6 LINES). SOLEX LTD Director GORDON RICHARDS. SOLEX WORKS - 223-231 MARYLEBONE ROAD LONDON N.W.1. YOUR REF. Jnr.7/JH.…

scan0217 Letter to the Zenith Carburetter Co. Ltd. clarifying requirements for marine and dual carburetters.
View original record 1033 Rm/CTS.6/JMS. 18.6.40. The Zenith Carburetter Co. Ltd., Honeypot Lane, STANMORE, Middlesex. Dear Mr. Turner, Thank you for your letter dated 14th June, concerning Marine carburetters. As you are…

scan0218 Parts and drawings for the B.80 Marine Unit.
View original record 1128 To Rm. c.c. to Rm/HH. Jnr.3/JH.19.6.40. B.80 Marine Unit. We have already sent to you the induction pipe; in order to complete the section we send you herewith PL.241 which is a copy drawing of…

scan0219 Requesting the results of an oil flow test on a filter assembly to settle an outstanding account.
View original record 1128 file marine To Rm/CTS. Les/FS.2/B.21.6.40. In March last Les. handed to Rm. a Filter Assembly E.87841 made by W.H.Paul Ltd. This was to be oil flow tested and a report submitted on its…

scan0220 Letter to Solex Ltd. inquiring about a carburetter that has not been received.
View original record Rm/CTS.2/JMS. 23.6.40. Messrs. Solex Ltd., 223/231, Marylebone Road, LONDON, N.W.1. Dear Sirs, With reference to your letter GR/DF dated 17th June. We are anxious to get hold of the carburetter in…

scan0221 Blueprints for an induction pipe and oil cooler for a B 80 Marine engine.
View original record To Rm. Copy Ev 1128 Rm/HH/1/27/6/40. THE PARTICULARS ON THIS MEMO HAVE NOT BEEN CHECKED OR ISSUED. B 80. MARINE. PL.223. Induction pipe and oil cooler. Inlet pipes- SECTION 5070. We send you herewith…

scan0222 Letter from Solex Ltd regarding the dispatch and material composition of a 35 m/m FFVS carburettor.
View original record TELEGRAMS "SOLEXCARB, NORWEST, LONDON" Handwritten: File (Marine) Handwritten: 1128 TELEPHONES PADDINGTON 5011 (6 LINES). [M.T.A. Logo] [NATIONAL SCHEME FOR DISABLED MEN Logo] SOLEX LTD Director…

scan0223 Calculating starter motor torque for the B.80 'Marine' engine based on data from the B.60 engine.
View original record 1128 To JNR. from Rm/RC. Rm/RC.1/SW.1.7.40. re Starter Motor for B.80 'Marine' Since we have not been able to obtain the "resisting" torque of the eight-cylinder engine under extreme conditions, i.e.,…

scan0224 Performance analysis and discussion of the B.80 Engine's starter motor and battery system.
View original record - 2 - B.80 Engine (cont) Flywheel to pinion ratio = 10.25 Starter Motor "driving" torque = 124 / 10.25 = 12.1 lb.ft. Starter Motor Speed (SC.126 C.A.V.) = 750 R.P.M. Starter Motor current. = 475 A.…

scan0225 Letter from Zenith Carburetter Co. Ltd. to Rolls-Royce regarding a Bendix Aviation twin updraught carburetter.
View original record 1128 The ZENITH CARBURETTER CO. LTD HONEYPOT LANE STANMORE MIDDLESEX ADJOINING QUEENSBURY UNDERGROUND STATION CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY. TELEGRAMS…

scan0226 Confirming the dispatch of blueprints for the B80 Marine engine's crankshaft and flywheel.
View original record To Rm C. Ev Rm/HH/1/6/7/40. 1128 THE PARTICULARS GIVEN ON THIS MEMO HAVE NOT BEEN CHECKED OR ISSUED B80. MARINE. PL.25. Parsons reverse box & rear end of engine. Sectin 5010. Crankshaft & flywheel. We…

scan0227 Letter from Zenith Carburetter Co Ltd regarding the receipt and finishing of 6 dual Stromberg Carburetters from America.
View original record 1033 The ZENITH CARBURETTER CO LTD HONEYPOT LANE STANMORE MIDDLESEX ADJOINING QUEENSBURY UNDERGROUND STATION CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS ZENICARBUR…

scan0228 Final designs for the inter-cooler installation on a B.80 Marine Unit, questioning the size chosen.
View original record 112 To Rm. c. to Rm/HH. m. to Rm/AA. Jnr.4/JH.10.7.40. B.80 Marine Unit. We send you herewith the last of the designs for the installation of the inter-cooler. The whole of the work is now finished.…

scan0229 The dispatch of blueprints for a marine engine sump pump bracket and cap.
View original record To Rm. C. Ev. 1128 Rm/HH/1/10/7/40. THE PARTICULARS GIVEN ON THIS MEMO HAVE NOT BEEN CHECKED OR ISSUED B 80. MARINE. PL.189. MARINE ENGINE SUMP PUMP. SECTION:5050. Cylinder head. SECTION:5200. Oil…

scan0230 Parts required for a flame arrester for a B.80 Marine engine carburettor.
View original record 1128 Rm. from Rm/HH Rm/HH.5/JMS.11.7.40. c. Ev. Not issued. B.80 Marine. PL.216. Flame Arrester. Carburetter - Sec.5080 Please receive herewith a blue print of each of the following: RE.1342 Flame…

scan0231 The issue of blueprints for a B 8Q Marine engine's Parsons reverse box and crankshaft.
View original record To Rm. C.Ev. 1128 Rm/HH/1/11/7/40. THE PARTICULARS GIVEN ON THIS MEMO HAVE NOT BEEN CHECKED OR ISSUED B 8Q MARINE PL.251 Parsons reverse box & rear end of engine Section 5010 Crankshaft & flywheel…

scan0232 Letter from the Experimental Department requesting drawings and literature for the UUR.2 carburetter from The Zenith Carburetter Co.
View original record 1128 Experimental Department. 11.7.40. Rm/CTS.1/JMS. The Zenith Carburetter Co., Honeypot Lane, STANMORE, Middlesex. Dear Mr. Turner, Thank you for your letter dated July 8th. We would be obliged if…

scan0233 Report on the performance of 2-stroke and 4-valve engines.
View original record 1128 Jnr. from Rm. Rm.18/ML.14.7.40. Herewith a report from Sammons on the work he has been doing on the 2-stroke engines. The small 4-valve engines does not seem to have had much of a performance…

scan0234 Oil cooler size for an 8-cylinder marine engine.
View original record 112-8 Jnr. from Rm. Rm.6/ML.14.7.40. B.80. MARINE UNIT. Re your Memo. Jnr.4/JH.10.7.40. I should not worry about the fact that the oil cooler seems to be rather a small size for our 8-cylinder engine.…

scan0235 Chasing a flow test report for a Filter Assembly in order to settle a long-standing account.
View original record To Rm/CTS. [Handwritten]: 1128 [Handwritten]: File Marine Les/FS.12/B.15.7.40. On the 21st ult., under reference Les/FS.2/B., we informed you that a Filter Assembly E.87841 made by W.H.Paul Ltd., had…

scan0236 Letter from Zenith Carburetter Co. Ltd. regarding the procurement of a carburetter from America and the related import license.
View original record 1128 The ZENITH CARBURETTER CO LTD CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS ZENICARBUR PHONE LONDON CODE A.B.C. 5TH EDITION HONEYPOT LANE STANMORE MIDDLESEX…

scan0237 The parts required for a B.80 Marine engine crankcase dipstick assembly.
View original record 1128 Rm. from Rm/HH. Rm/HH.8/JMS.15.7.40. O. Ev. Particulars given on this memo have not been issued. B.80 MARINE SECTION 5000 - CRANKCASE. PL.197 - DIP STICK. Please receive herewith blue prints of…

scan0238 Prints for two of the latest Twin Disc Clutch Co's gearboxes, noting their unsuitability due to diameter.
View original record Jnr. from Rm. 112-8 Rm.14/JMS/17.7.40. Herewith prints of two of the latest Twin Disc Clutch Co's gear boxes which may be of use to you for future reference, though I think we have already decided…

scan0239 Instructions regarding blueprints for a B.80 Marine engine oil pump assembly.
View original record Rm. from Rm/HH. c. Ev. 1128 Rm/HH.3/JMS.17.7.40. Not issued. B.80 Marine Oil Pump. Sec.5170 to PL.251. Please receive herewith a blue print of each of the following: RE.1367. 4 7/16 in. Oil Float…

scan0240 Letter from Solex Ltd. regarding the supply of a Twin Updraft Solex Carburettor and potential delivery delays.
View original record To RM/CTS from JNR. 1128 SOLEX LTD. Director: GORDON RICHARDS. SOLEX WORKS - 223-231 MARYLEBONE ROAD LONDON N.W.1. Telegrams 'SOLEXCARB NORWEST LONDON' Telephones PADDINGTON 5011 (6 Lines) YOUR REF.…

scan0241 Letter to Zenith Carburetter Co. Ltd. concerning the import of a U.R. carburetter from America for experimental use.
View original record 1128 18.7.40. Rm/CTS.6/JMS. The Zenith Carburetter Co.Ltd., Honeypot Lane, Stanmore, Middlesex. Your ref: TLT/LT. Dear Mr. Turner, Regarding the U.R. carburetter which you propose to obtain from…

scan0242 Letter to Solex, Ltd. suspending development work for the F.F.V.S. carburettor.
View original record 1128 Experimental Department. 22.7.40. Rm/CTS.3/JMS. Messrs. Solex, Ltd., 223-31, Marylebone Road, LONDON, N.W.1. Your ref: GR/CP. Dear Sirs, With reference to your letter dated 17th July. The…

scan0243 Letter from The Zenith Carburetter Co. Ltd. regarding an application for a licence to import a UUR carburetter.
View original record The ZENITH CARBURETTER CO. LTD HONEYPOT LANE STANMORE MIDDLESEX ADJOINING QUEENSBURY UNDERGROUND STATION CARS DRIVEN BY OUR STAFF ARE AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEGRAMS ZENICARBUR,…

scan0244 Applications for extra petrol rations for five individuals.
View original record Hs/Gry. from Rm/ML. Rm/ML.1/2.8.40. G.O. Herewith applications for extra petrol rations on behalf of :- F.T.Fisher. 85, Stone Hill Road. Derby. H.Robinson. 19, Hamilton Road, Derby. D.D.Clapham. 88,…

scan0245 Designer staffing for marine work and instrument development for the Rippletto vehicle.
View original record Staff H 1128 Ev. HPS/RH. Rm.2/ML.12.9.40. MARINE ~~Detail Designers~~ With reference to Ev.4/JH.8.9.40, we cannot afford to have three designers permanently on marine work. You will recollect that in…

scan0246 New drawing blueprints issued for a Dynamo & Salt Water Pump.
View original record ASK HH To "Rm" o "Ev" Rm/HH2/Dn8.8.40 Particulars given on this memo have not been issued. Bearing Bracket & Bush Holder ........ Sec.8080 Commutator .................... Sec.8090 Frame and Field…

scan0247 New parts required for a B.80 Marine engine, specifically for the header tank, intercooler, and water connections.
View original record 1128 To Rm. from Rm/HH. c. RM Rm/HH.1/SW.2.10.40. The particulars on this memo have not been issued. B.80 Marine. PL.282 Header Tank and Intercooler. Sec.5250. Header Tank. RE.1485 Bottom cover -…

scan0248 Drawings for a generator, induction pipe, and carburetter for the B.80 Marine Unit.
View original record To Rm. c. to Rm/HH. file Marine- (I think it comes under engines) Jnr.6/JH.17.6.40. 1128 B.80 Marine Unit. Herewith drawing PL.159 showing the R.R. generator with adjustable dynamo pulley for use with…

scan0249 Patent office search for the Burney 'Chordal' Engine.
View original record [Handwritten top:] Apparently none of the patents have yet been published. [Handwritten left margin:] File Rec Engines Diesel & Marine [Handwritten right margin:] TAS 1178 Rm/Mr. Swinden.…

scan0250 List of applications in the name of Sir C. Dennistoun Burney, relating to Aircraft and other military hardware.
View original record -2- We have noted the following applications in Sir C. Dennistoun Burney's name, relating to Aircraft:- Nos. 20782/39 24444/39 28456/39 28457/39 4248/40 74604/40 8464/40 but it is improbable that…

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