Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Water outlet connections with rubber joints for the Falcon and Eagle engines. | ||
| View original record | To R. from EH. c. to J. c. to Ey. c. to E. c. to Na. c. to F P. EH2/DB28616. June 28th, 1916. X. No. WATER OUTLET CONNECTIONS WITH RUBBER JOINT FIXED DIRECT. 2170 & 2122. We have had a set of these… | ||
| Scan002 | Proposal to simplify water connections on jackets by replacing screw unions with steel tubes and clips. | ||
| View original record | R.H. 285 a (400 T) (S.C. 25M. 15-2-16) D. 1640. To By. from R. c. to Na. c. to Wor. c. to EH. 6/7/16 c. to J. COPY. R9/W4716. July 4th, 1916. RE WATER CONNECTIONS ON JACKETS. Mr Elliott has… | ||
| Scan003 | Modifications to water connection fittings on the 'Hawk' aero engine. | ||
| View original record | R.R. 238 a (1000 T) (S. C. 536. 15-2-16) G. 1546 To EH. from E. c. to By. c. to St. COPY. E7/W5716. July 5th, 1916. RE WATER CONNECTIONS. I have sent to Mr Bailey under separate cover drawing… | ||
| Scan004 | Technical memorandum discussing improvements and alternative designs for water pipe clips. | ||
| View original record | C O P Y. To R. from EH. c. to J. c. to By. c. to E. c. to Ne. c. to P. EH3/DB17716. July 17th, 1916. X. No. RE WATER PIPE CLIPS. 2016. The present type of water pipe clips have been greatly improved… | ||
| Scan005 | Recommendation to adopt plain water connections without unions as standard on the Falcon and Hawk Engines. | ||
| View original record | To R. From EPC. c. to J. c. to W. c; to E. X.2170. PLAIN WATER CONNECTIONS WITHOUT UNIONS. These have been fitted to Experimental Eagle Engines B and C. They are now standardised on the Eagles and Mr.… | ||
| Scan006 | Requesting a blueprint for a standardized plain water connection part for the Eagle engine, which is being tested in aluminium. | ||
| View original record | C O P Y. To Clk. from E. E4/B1117. January 1st. 1917. (Stamped) COPY Re X.2122, X.2170 - Plain Water Connections without Unions. (X.2122 is struck through) With reference to your memo EFC9/T271216 to… | ||
| Scan007 | Design flaw in a standardized aluminium plain water connection for an experimental engine. | ||
| View original record | To E. from EFC. c. to By. 5th January 1917 EPC2/T5117. X.2122. X.2170. - PLAIN WATER CONNECTIONS WITHOUT UNIONS. In answer to your memo E4/B1117, I now send you blue print of the standardised piece… | ||
| Scan008 | Standardisation of spherical type unions and a fault found in smaller gunmetal sizes. | ||
| View original record | To BY. from E. c. to CJ. Hs. X2170 E3/MS.6.25. UNIONS - SPHERICAL TYPE. X.2170 X.8180 X.8190 In response to your enquiry concerning the above we should be glad if you would do what is necessary to… | ||
| Scan009 | Redesign, material changes, and testing of spherical seated unions for standardization. | ||
| View original record | To BY. from E. c. to CJ. c. to RG. c. to Hs. X2170 E2/M19.12.25. SPHERICAL SEATED UNIONS. X.2170 X.8180 X.4111 X.8190 We send you herewith drawing LeC.2183 shewing the above revised. This arises out… | ||
| Scan010 | The decision to omit pegs for locking pipe unions in aluminium castings. | ||
| View original record | X. 2170 To BY. from E. c. to BJ. RG. Hs. E1/M23. 8. 26. RE. PIPE UNIONS IN ALUMINIUM CASTINGS X. 2170 Referring to your recent note in connection with pegging unions in alum. castings, kindly note Mr.… | ||
| Scan011 | The principle of using a taper pin to locate a nipple for a union in an aluminium boss. | ||
| View original record | X2170 A.Dept. [Redacted] [Redacted] Hs. Ha. E.Dept. BY2/H. 25.8.26. [STAMP] Hs 26 AUG 1926 RECEIVED [END STAMP] PIPE UNIONS AND ALUMINIUM CASTINGS. ----------------------------------- I recently took… | ||
| Scan012 | New design for Spherical Seated Unions, comparing dimensions and thread standards. | ||
| View original record | X.2170 To R. from E. c. to BJ. RG. c. to Hs. BY. E2/M5.1.27. SPHERICAL SEATED UNIONS. We send you herewith blueprint of LeC.2360 shewing the above made to reduced dimensions and we also attach a print… | ||
| Scan013 | Design, material, and standardization of new pipe unions. | ||
| View original record | To E. RG. BY c. to BJ. Wor. Hs. RE. PIPE UNIONS. X, 2170 X, 8180 I think these are as perfect as we know how to make them, and the minimum weight and cost of materials. They are a distinct advance on… | ||
| Scan014 | Design and approval by Mr. Royce of spherical seated unions with reduced dimensions. | ||
| View original record | To BY. from E. c. to BJ. RG. Hs. 42170 SPHERICAL SEATED UNIONS WITH REDUCED DIMENSIONS. X. 8190 X. 2170 We send herewith the original of LeC. 2360 shewing the above. Mr. Royce approves of these being… | ||
| Scan015 | Experiment to enlarge drain holes on a hand magneto casing, as per Mr. Royce's instructions. | ||
| View original record | To Wor. for EH from St. S1/DB8616. June 6th, 1916. X.2219. We have taken out the above X number for the experiment involved in Mr Royce's memo R5/W30516, re making the drain holes larger in the hand… | ||
| Scan016 | Internal memorandum regarding an issue with a hand magneto filling with oil. | ||
| View original record | R.R. 235 a (400 T) S.C. 536. 15-2-16) G. 1646. Extract -/6/16. To Wor. for EH from R. c. to By. c. to EP. c. to J. RE/W30516. May 30th, 1916. COPY RE HAND MAGNETO & STARTING GEAR. Referring to the… | ||
| Scan017 | Enlargement of drain holes in the hand magneto casing. | ||
| View original record | To Ry from St. S9/DB156161 June 15th, 1916. RE X.2219. LARGER DRAIN HOLES IN CASING OF HAND MAGNETO. With reference to Mr Royce's memo RB/W30516, pointing out the necessity for getting all the oil… | ||
| Scan018 | Quoting Mr Royce on rectifying an issue with a hand-starting magneto filling with oil. | ||
| View original record | To Wor. for Mr Allis from St. Bt2/DB31716. July 31st, 1916. RE X.2219 - HAND STARTING MAGNETO. We give below an extract from one of Mr Royce's memos and shall be glad if you will arrange accordingly,… | ||
| Scan019 | Cancelled modification note for an Eagle Engine's hand magneto concerning larger drain holes. | ||
| View original record | R.R. 285 A (400 T) (S.C. 596 15-5-16) G. 1546. EAGLE ENGINE X.2219. HAND MAGNETO - LARGER DRAIN HOLES IN CASING AND FIT AFELT RING IF NECESSARY. C A N C E L. This now being put through as standard see… | ||
| Scan020 | Extract detailing the strength testing procedure for hand magnetos and starting gear. | ||
| View original record | Extract from R5/W30.5.16. X.2220.- RE HAND MAGNETOS & STARTING GEAR. The hand starting gear should be tested for strength by making it slowly revolve the engine by power, say, put a belt or chain… | ||
| Scan021 | Experiment involving prematurely firing an engine while it is being slowly revolved. | ||
| View original record | To Wor. for EH from St. S2/DB6616. June 6th, 1916. X.2220. We have taken out the above X number for the experiment involved in Mr Royce's memo RB/W30516 re slowly revolving the engine by power through… | ||
| Scan022 | Request for a hand starter for an experiment on the RE 250 HP engine. | ||
| View original record | To Mr. Mills from By. Mr Stout 19th June, 1916. By/JR6/G19616. RE 250 HP ENGINE - HAND STARTER - X.2220. Slowly revolving the engine by power through the Hand Starter while the engine is prematurely… | ||
| Scan023 | Instruction sheet confirming a 250 HP hand starter experiment is complete and ready for testing. | ||
| View original record | R.R. 300 (12 B) (SB. 218. 18.11.15) E.P. 940. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 46492 To: Clarke 15-8-19 Re: 250 H.P. Hand Starter Customer's No.: X2220 Hand Starter to an Drg E8957 for the above… | ||
| Scan024 | Agreement to cancel an engine experiment concerning premature firing due to difficulty obtaining the necessary equipment. | ||
| View original record | R.R. 235 s (200 T) (S.C. 536. 15-2-16) G. 1547. COPY. R4/E1117. To EFC. from R. c.to J. e117 COPY. January 1st 1917. X.2220 - SLOWLY REVOLVE ENGINE BY POWER THROUGH HANDSTARTER, WHILE THE ENGINE IS… | ||
| Scan025 | Cause of hand starter gear breakages on 'Eagle' engines and proposals for strengthening the components. | ||
| View original record | COPY. Oy4/W3616. To By from Cy. c. to EP. c. to Wor. for EH. - 6/6/16 June 3rd, 1916. Re Hand Starter Gear Breakages on "Eagle" Engines. Are we right in supposing that the failure of this gear has… | ||
| Scan026 | The necessity of hardening sun wheel teeth and requesting information on worm and shaft failures. | ||
| View original record | 2. To By from Oy. June 3rd, 1916. We do not think it is necessary to harden the teeth of the sun wheel since it is so seldom used. Summarising, the information we should like is:- 1. Is it always the… | ||
| Scan027 | Initiating an experiment regarding hand starter gear breakages on Eagle engines. | ||
| View original record | To Wor. for EH from St. S9/DB6616. June 6th, 1916. X.2222. We have given the above X number for the experiment mentioned in Mr Olley's memo Oy4/W3616 (copy of which is attached) re hand starter gear… | ||
| Scan028 | Issues with bending wormwheel shafts on hand starters and the plan to replace them with strengthened versions. | ||
| View original record | To By from R. c. to J. c. to Wor. for M. - 9/6/16 c. to P. COPY. R4/W6616. June 6th, 1916. RE HAND STARTERS. Regarding the hand starters about which there is trouble with the wormwheel shaft bending,… | ||
| Scan029 | Failed worm wheel shaft, clarifying a description error, and detailing old and new part numbers. | ||
| View original record | R.R. 235 a (400 T) S.C. 596. 16-2-16) G. 1546. x2222 EH. COPY. EP10/W8616. To R. from EP. c. to J. c. to Wor. for EH & St. c. to By. June 8th, 1916. With reference to your memo R4/W6616 and Oy4/W3616,… | ||
| Scan030 | Cancellation notice for a static torque test on a hand starter's larger wormwheel shaft. | ||
| View original record | EFC7/T27217. 27th February 1917. X.2222A/B - RE STATIC TORQUE TEST OF HAND STARTER - LARGER WORMHEEL SHAFT IN C.H.N.S and N.C.S. This experiment is now cancelled, being no longer required. E.7.C. EFC | ||
| Scan031 | Arrangement for making six sets of continuous current revolution indicators for the Admiralty. | ||
| View original record | Wor for S & B. ORIGINAL R7/C13516. May 13th, 1916. [STAMP: RECEIVED 15 MAY 1916] [Illegible Signature] Mr. Olley. Copies to J. Wor. for Mr. Ellis, Mr. Stent, and El. [Text in left margin: 2238] Re… | ||
| Scan032 | Instruction request for the production of five sets of Magneto Speedometers for 250 HP engines. | ||
| View original record | To Mr. Mills. from By. X. 2238 21st August 1916. By7/F21816. RE MAGNETO SPEEDOMETER - 250 H.P. Order 71362 - X. 2238 Will you please issue the necessary instructions for five sets of the above to be… | ||
| Scan033 | Advising Mr. Clark of an experimental Electrical Speed Indicator fitted to a 250 HP Engine A 2. | ||
| View original record | COPY. 46883. 12.12.16. Mr.Clark. 250 H.P. ENGINE A 2. The above engine has been fitted with the following experimental part:- X.2238 - Electrical Speed Indicator. (Sgd) R.H. Coverley | ||
| Scan034 | Instruction sheet for fitting experimental parts to a 260HP Engine A2. | ||
| View original record | R.R. 300 (12 B) (SB. 218. 18.11.15) E.P. 940. 46533 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Hives - Clark Order No. Customer's No. Re: 260HP Engine A2 The above Engine has been fitted with the… | ||
| Scan035 | Test report cover page for C.M. & C.M.1 Morganite brushes on a speedometer. | ||
| View original record | X.2238C. TEST ON C.M. & C.M.1 MORGANITE BRUSHES ON R.R. SPEEDOMETER. COMPLETED. and reported upon by EFC. See X 2543. Brush Experiments | ||
| Scan036 | Confirmation of experiments fitted to an A2 engine, including an electrical speedometer and a wheelcase with lock nuts. | ||
| View original record | R.R. 225 a (200 T) (S.C. 536, 15-2-16) G. 1547. EFC3/T11117. X.2238 11th January 1917. Mr. Coverley confirms that the following experiments have now been fitted to [strikethrough: A4] [handwritten:… | ||
| Scan037 | Successful bench test of a magneto speedometer and drive, with a suggestion for further testing on an aeroplane. | ||
| View original record | To R. from EFC. c. to J. " " By. " " EH. " " EP. EFC5/AT30.3.17. X.2238.- MAGNETO SPEEDOMETER E.10560 & MAGNETO SPEEDOMETER Drive E.10854. With reference to the above experiment we understand from Mr.… | ||
| Scan038 | Extract regarding fitting an electrical speed indicator and a consumption tank to a car for testing. | ||
| View original record | R.R. 255 M (100 T) (S.C. 536. 15-2-16) G. 1547. X. 2238. Extract from EH1/AT.4.6.18. RE 7 C.A. CAR [Handwritten and crossed out text] X.652 X.1807 We are also fitting to this car one of the electrical… | ||
| Scan039 | Experimental parts fitted to chassis 7 C.A. | ||
| View original record | X.2238 To Mr. Clark from RHC 13.6.17 RE CHASSIS 7 C.A. X.682 ✓ X.180Y The above chassis has been fitted with the following expl. parts. X. 2983 Fitted with valves E.13154 Aero Valve Plugs in the End.… | ||
| Scan040 | Extract detailing parts fitted to Mr. Royce's car, covering rear springs, shock absorbers, and an electrical speed indicator. | ||
| View original record | X. 2238 Extract from EH1/AT15.6.17. (Handwritten and crossed out: X.1807) The following parts were fitted to 7 C.A. deliveredto Mr. Royce. X. 2650. 20. Rear Springs, standard type, brackets made so… | ||
| Scan041 | End play of a Hoffmann ball bearing for a magneto speedometer. | ||
| View original record | R.R. a 833 (400 T) (S.C. 530. 15-2-16) G. 1546. To Wor. for Mr Ellis. c. to EFC. 4th July. 1917. BY/HBO2/P4717. X. 2238 RE MAGNETO SPEEDOMETER. I have got a reply from the Hoffmann Ball Bearing… | ||
| Scan042 | Letter from the Department of Aircraft Production enclosing an R.A.E. report on a Magneto Speedometer. | ||
| View original record | A.F.T. 85 (Gen.) Replies should not be addressed personally to individuals. All further communications on this subject must be addressed to— The Controller, Technical Department, Dept. of Aircraft… | ||
| Scan043 | Letter from the Department of Aircraft Production regarding a test report on a Magneto Speedometer. | ||
| View original record | X. 2238 Mr Clarke COPY. Exp office This will no doubt interest you, kindly file this copy. Have sent original to "R" By DEPARTMENT OF AIRCRAFT PRODUCTION, Technical Dept., Ministry of Munitions of… | ||
| Scan044 | Letter to a tester regarding engine testing, a new radiator, an electric counter, and propeller trials. | ||
| View original record | X.2938 15th August E 18. EH1/LG15.8.18. X.3254. X.2238 X.3330 X.3273 X.3081. F. Cliburn Rolls-Royce Tester, Sergeants Mess, R.A.F. Martlesham Heath, Ipswich. Dear Mr. Cliburn, I hope that by the time… | ||
| Scan045 | Continued letter inquiring about the standard Eagle engine and the D.H.10 aircraft fitted with a Liberty engine. | ||
| View original record | Contd. -2- EH1/LG15.8.18. they consider it as good as the standard Eagle? What is happening to the D.H.10 fitted with a "Liberty". Yours faithfully, | ||
| Scan046 | Letter regarding the return of a magneto speedometer after testing at R.A.E. | ||
| View original record | X 2238 A.P.T. 85 Gen. Replies should not be addressed personally to individuals. All further communications on this subject must be addressed to — The Controller, Technical Department, Dept. of… | ||
| Scan047 | Order for German Silver Resistance Wire for a Magneto Speedometer. | ||
| View original record | R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/155/13. X.2238 19th March 1919. To C.C. from BY/HBO. C. to Mr. Hives. C. to Mr. Coverley. BY/HBO1/DW.19319. ---------------- X.2238.- MAGNETO SPEEDOMETER.… | ||
| Scan048 | Voltage output particulars of the magneto speedometer, also known as a revolution counter. | ||
| View original record | To Rg. from EFC. X 2238. EFC3/T16.8.22. X.2238 - R.R. MAGNETO SPEEDOMETER. Answering your Rg9/W14.8.22 I regret I am unable to give you the exact particulars of the R.R. revolution counter, never… | ||
| Scan049 | Instructions detailing two generators for a Magneto Speed Indicator and their specific resistance values. | ||
| View original record | RR.238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 2238 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To EFR. Order No AR.155 Customer's No. 1 5 Oct 1922. x 2238 Magneto Speed Indicator Two generators for the… | ||
| Scan050 | Specifications for a machine with aluminium end-plates, detailing its components. | ||
| View original record | RR. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No Customer's No. Z. 19 The particulars of this machine which has aluminium end-plates are as follows.… | ||
| Scan051 | Instructions detailing the characteristics of a Weston instrument, including its scale, voltage, current, and resistance. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To 19 Order No Customer's No. 3 It is mounted on a stand, which with bolts and nuts adds 11.5 lbs to this. The Weston… | ||
| Scan052 | Test results for a resistance bobbin, including calculations for volts, amperes, and a table of machine speed versus scale readings. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 19 To Order No Customer's No. 4 resistance bobbin, totals 571.9w. Hence with the resistance in series with the… | ||
| Scan053 | Test report for a Magneto Speed Indicator, detailing resistance adjustments and reading corrections. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X.2238 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To EFC Order No. AB.56. Customer's No. 1 X 2238 Magneto Speed Indicator. The resistance coils of the first… | ||
| Scan054 | Detailed specification for a Magneto Speed Indicator and its D.C. generator component. | ||
| View original record | To Rg. from EFC. X 2238 EFC1/T17.10.22. X.2238 - MAGNETO SPEED INDICATOR. X1888 The R.R. magneto speed indicator consists of a magneto D.C. generator with drum wound armature; an adjustable resistance… | ||
| Scan055 | The resistance characteristics and calibration of a Weston instrument. | ||
| View original record | Contd. -2- EFG1/T17.10.22. RESISTANCE. The resistance is divided into two concentrically wound parts, connected in series. The outer coil is a single layer and adjustable by a sliding contact. The… | ||
| Scan056 | Report page discussing eddy currents in an armature core, with a diagram showing slot dimensions. | ||
| View original record | Contd. -3- EFC1/T17.10.22. From the above it will be seen that the proportionality is not very good. This must be accounted for by the generation of eddy currents in the armature core. EFC. .225"… | ||
| Scan057 | Letter from Hightensite Limited promoting their Ebonite and Hightensite goods and services. | ||
| View original record | X.2625 CONTRACTORS TO H.M. GOVERNMENT. TELEPHONE NO. EAST 3153. TELEGRAMS, "CLISTOBON VICKDOCK" HIGHTENSITE LIMITED. Regd. Offices: 34/6, GRESHAM STREET, E.C.4. TELEPHONE CITY 988-989 TELEGRAMS:… | ||
| Scan058 | Advertisement for Hightensite Ltd's ebonite separators for battery accumulators and other related parts. | ||
| View original record | C. 5 Aug. 19 LOSING TIME How often does this :: happen to you through FAULTY IGNITION? HIGHTENSITE'S LIMITED EBONITE SEPARATORS specially designed and manufactured for BATTERY ACCUMULATORS will enable… | ||
| Scan059 | Letter to The Hightensite Co., Ltd. requesting samples of various insulating materials. | ||
| View original record | X.2625 EFC/AT. 1.9.19. The Hightensite Co., Ltd. Normandy Works, Custom House, London. E.16. Dear Sirs, We thank you for your letter of today. We are going into the matter of insulating materials and… | ||
| Scan060 | Letter from Hightensite Limited regarding sending product samples and proposing to cover an ignition tube with Ebonite. | ||
| View original record | X.2625 CONTRACTORS TO H.M. GOVERNMENT. TELEPHONE No: EAST 3153. TELEGRAMS. "CLISTOBON VICKDOCK" HIGHTENSITE LIMITED. Manufacturers of HIGHTENSITE & EBONITE, MOULDED ARTICLES OF ALL DESCRIPTIONS SHEET,… | ||
| Scan061 | Letter from Hightensite Limited regarding the dispatch of samples and an offer for Ebonite covering for ignition tubes. | ||
| View original record | X.2625 CONTRACTORS TO H.M. GOVERNMENT. TELEPHONE No. EAST 3153. TELEGRAMS, "CLISTOBON VICDOCK" HIGHTENSITE LIMITED. Manufacturers of HIGHTENSITE & EBONITE, MOULDED ARTICLES OF ALL DESCRIPTIONS SHEET,… | ||
| Scan062 | Inquiry for a sample of ebonite covering for ignition tubes. | ||
| View original record | X 2625 To O.O. from EFC. EFClo/T 6.9.19. RE X.2505 - HIGHTENSITE INSULATION Y With reference to copy of letter attached, would you kindly enquire from this firm, if they can supply us with a sample… | ||
| Scan063 | Letter to Messrs. Hightensite Limited acknowledging receipt of mouldings and enquiring about the supply of sample Ebonite Mouldings. | ||
| View original record | x 2625 Ref. WD/Ms11/E30.9.19. 30th September 1919. Messrs. Hightensite Limited, Normandy Works, Custom House, LONDON. E.16. Dear Sirs, We beg to acknowledge receipt of various mouldings sent under… | ||
| Scan064 | Record of Hightensite and Ebonite moulding samples with inserts sent by post. | ||
| View original record | X.2625 03337 8.10.19. Post 1 Pd. Hightensite Ltd. London. Sent to O.O. Samples of Hightensite and Ebonite Mouldings with Inserts. 3 Ebonite with inserts 1 Hightensite " " | ||
| Scan065 | Letter from Hightensite Limited regarding samples of Ebonite and Hightensite mouldings with embedded metal. | ||
| View original record | X.2625 HIGHTENSITE LIMITED. NORMANDY WORKS, CUSTOM HOUSE, LONDON. E.16. Messrs. Rolls-Royce, Ltd. Nightingale Road, DERBY. Dear Sirs, We have to thank you for your letter of the 20th ult., ref.… | ||
| Scan066 | Experimental ebonite-covered ignition tube supplied by Messrs. Hightensite Ltd. | ||
| View original record | R H 235a (200 T. 18 F 674. 22-5-19) G. 2376. X.2625. EFC1/T13.11.19. To Da. from EFC. c. to EH. RE IGNITION TUBE . EBONITE COVERED BY MESSRS. HIGHTENSITE LTD. This is to confirm that we have handed to… | ||
| Scan067 | Examination of an ignition tube ebonite cover supplied by Messrs Hightensite Ltd. | ||
| View original record | X 2625 To EFC from DA. DA3/CB15-11-19. IGNITION TUBE - EBONITE COVER BY MESSRS HIGHTENSITE LTD. In reply to your EFC1/T13-11-19,we have examined the specimen tube and find that it is equal to those… | ||
| Scan068 | Feedback on an ebonite-covered ignition tube supplied by Messrs. Hightensite Ltd. | ||
| View original record | To EH. from EPC. x 2625. EFC4/T18.11.19. RE IGNITION TUBE, EBONITE COVERED BY MESSRS. HIGHTENSITE LTD. This tube, together with correspondence in connection with same, has been handed to you by… | ||
| Scan069 | Quality of ebonite covered ignition tubes from The Hightensite Co. Ltd. | ||
| View original record | X.2625 To O.O. from EFC. EFC6/AT27.11.19. X.2434.-RE IGNITION TUBE EBONITE COVERED BY THE HIGHTENSITE CO. LTD. Regarding the above this has been considered by Messrs. Day and Hives and we attach… | ||
| Scan070 | Assessing a sample tube and concluding it is as good as the current material being used. | ||
| View original record | To EFC. from EH. X 2625 EH1/LG27.11.19. With reference to attached, I consider that the sample tube send to us by these people is quite as good as the present material we are using and see no reason… | ||
| Scan071 | Letter from Hightensite Limited following up on a quotation for a sample Ebonite-covered Ignition Tube. | ||
| View original record | X 2625 HIGHTENSITE LIMITED. Normandy Works, Custom House, LONDON. E.16. 8th November, 1919. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. Dear Sirs, We refer you to our letter and quotation of… | ||
| Scan072 | Letter from Hightensite Limited regarding a quotation for covering Ignition Tubes with Ebonite. | ||
| View original record | X 2625 HIGHTENSITE LIMITED. Normandy Works, Custom House, LONDON, E. 16. 30th october, 1919. Messrs. Rolls-Royce Ltd., Nightingale, Road, DERBY. Dear Sirs, We thank you for your letter of the 23rd… | ||
| Scan073 | Quotation from Hightensite Limited for covering steel ignition tubes with Ebonite. | ||
| View original record | x 2625 HIGHTENSITE LIMITED. Normandy Works, Custom House, LONDON. E.16. October 30th 1919. Messrs. Rolls-Royce Ltd., Nightingale, Road, DERBY. Dear Sirs, We are obliged for your enquiry of the 16th… | ||
| Scan074 | Letter from Hightensite Limited regarding the machining, polishing, and delivery of tubes. | ||
| View original record | X.2625 HIGHTENSITE LIMITED. Normandy Works, Custom House, LONDON. E.16. Messrs. Rolls-Royce Ltd. Nightingale, Road, DERBY. 24th Oct. 1919. Dear Sirs, We thank you for your letter of the 23rd inst.… | ||
| Scan075 | Letter forwarding a booklet from Hightensite Ltd. on improvements in insulating material. | ||
| View original record | R.R. 935a (100 T) (S.H. 798. 10-12-20) G. 2948 P. from WH. c. to G.C. c. to Hs. c. to F.C. c. to Dy. c. to Ds. X2625 X2625 Hightensite Ltd., Normandy Works, Custom House, E.16. I am sending you… | ||
| Scan076 | Booklet from Hightensite Limited regarding improvements in insulating materials. | ||
| View original record | IMPROVEMENTS IN INSULATING MATERIALS Hightensite Limited, NORMANDY WORKS, CUSTOM HOUSE, E. | ||
| Scan077 | Sending samples of Hightensite sheet and tubing for testing. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 3945 X * 2625 EFC. from Wd. Wd12/NJ15.6.21. X2625 Hightensite Ltd., Normandy Works, Custom House. E.16. Mine Wd4/NJ1.6.21. I am sending you herewith two… | ||
| Scan078 | Forwarding a letter and samples of a heat-resisting material from Hightensite Ltd. | ||
| View original record | R.R. 224a (100 T) (S.H. 798, 10-12-20) G. 2948 EFC. from Wd. X 2625 Wd3/NJ21.6.21. X 2625 Hightensite Ltd. I confirm mine Wd12/NJ15.6.21. Attached hereto is copy of letter, dated 20th inst. which we… | ||
| Scan079 | Copy of a letter from Hightensite Limited regarding a heat-resisting material, with samples sent for testing. | ||
| View original record | X.2625 COPY OF LETTER RECEIVED FROM:- HIGHTENSITE LIMITED, NORMANDY WORKS, NORMANDY STREET, CUSTOM HOUSE, LONDON. E.16. J. 874. 20th June 1921. Messrs Rolls-Royce Limited, Nightingale Road, DERBY.… | ||
| Scan080 | Requesting a report on the testing of samples from Hightensite Ltd. | ||
| View original record | EFC. from Wd. X 2625 Wd4/NJ11.7.21. X 2625. Hightensite Ltd. Mine Wd12/NJ15.6.21 and Wd3/NJ21.6.21. These people desire to know whether you have had an opportunity of testing the samples referred to… | ||
| Scan081 | Instruction regarding the delayed testing of 'Hightensite' samples. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 2625 X.4287 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFC 12 July 1921 Order No: AB. 12. Customer's No: 1 2625 X.4287 Re Tests of Hightensite. In reply to… | ||
| Scan082 | Extract discussing the positioning of bolt holes and accessibility of ignition plugs for the Eagle engine. | ||
| View original record | EXTRACT FROM R5/IB30315 of MARCH 30th, 1915. RE X.2514 - EAGLE ENGINE SPARKING PLUGS. "I have no objection to the vertical and horizontal position of the bolt holes, as shown in figure 5, providing we… | ||
| Scan083 | Extract regarding alternative ignition setups for the Eagle engine's sparking plugs. | ||
| View original record | EXTRACT FROM R13/IB22415 of APRIL 22nd, 1915. RE X.2514 - SPARKING PLUGS - EAGLE. "There aremany other possibilities, including the use of a distributor and a single spark coil, but most of these… | ||
| Scan084 | Requesting remarks on a small, porcelain type, Hobson aero engine ignition plug. | ||
| View original record | X2574 Mr Hives Mr W.T. For E.H. EP/HS4/F15116. Re Aero Engine Ignition Plugs. ----------------------- With reference to our memo EP34/W81215 which refers to Mr. Royce's memo R10/B301115, we shall be… | ||
| Scan085 | Unsatisfactory performance of ignition plugs for aero engines. | ||
| View original record | A 2514 Mr. Southern. c. to Wor for EH. EP12/W5716. R- JI Re. IGNITION PLUGS FOR AERO ENGINES. The above feature still appears to be in a very unsatisfactory condition. We do not yet appear to order… | ||
| Scan086 | Potential solutions for sparking plug overheating, including suggestions from Mr. Royce. | ||
| View original record | COPY. [Handwritten] COPY To HS. fro E. C. to Clk. RE SPARKING PLUG OVERHEATING. EA/W9916. 9/9/16. X.2608 With reference to the above, kindly note that Mr. Royce thinks that there may be some possible… | ||
| Scan087 | Letter discussing the 'B' Eagle engine, focusing on ignition plug improvements after a 24-hour test run. | ||
| View original record | H.W. 839 a (400 T) (S.C. 530. 15-2-16) G. 1546. To Hs. from R. C. to J. C. to By. RS/W11916. Sept. 11th 1916. RE "B" EAGLE ENGINE. I am very pleased to receive the report on the 24 hour run of the "B"… | ||
| Scan088 | Spark plug insulation materials, fixing methods, and alternative washer suggestions for engine testing. | ||
| View original record | H. H. 795 a (400 T) S.C. 536. 15-5-16; G. 1546. To HS from R. -2- R8/W11916. The heat of the gases in this space, therefore, goes directly to the earthenware insulator and thence to the plug body by… | ||
| Scan089 | From 'R' to 'Hs' requesting a photostat copy of an enclosed sketch for Mr. Hives. | ||
| View original record | H. & S. (500 T) (S.C. 538. 15-2-16) G. 1547. -3- To Hs from R. R8/W11916. Illustration enclosed for Mr. Hives. Kindly have photostat taken from enclosed sketch and send to us. R. | ||
| Scan090 | Experiment for an ignition plug firing in a pocket. | ||
| View original record | R.R. 194 a (400 T) - S.C. 539. 15-2-16) G. 1546. To by from E. To MB from E. c. to Cik. RE IGNITION PLUG FIRING IN POCKET. E1/W22916 22.9.16 With further reference to my memo. E3/W16916. kindly note I… | ||
| Scan091 | Follow-up letter from chemical engineers Guthrie & Co. regarding a lack of response on a sparking plug proposal. | ||
| View original record | X2514 SOLE MANUFACTURERS OF VITREOSATE REG. TRADE MARK. PRINCIPAL: W. HAYHURST. ACID PROOF IMPERVIOUS STONEWARE FOR CHEMICAL AND EXPLOSIVES WORKS PORCELAIN ELECTRIC INSULATORS FOR LOW AND HIGH… | ||
| Scan092 | The testing, repair and performance of a 260 HP Mercedes engine, including power curve data and spark plug analysis. | ||
| View original record | E.R. & S. (600 T) (S.D. 408. 26-4-17.) Bm. 2/158/13. *.2514 To R. from EH. c. to BJ. c. to E. c. to EY. EH1/LG10.12.17. 10th Dec. 1917. 3/11 X 2514 X.2295 260 HP MERCEDES ENGINE. X We had to take the… | ||
| Scan093 | Analysis of engine performance, focusing on spark plug placement, compression ratios, and induction, comparing against a Mercedes engine. | ||
| View original record | Contd. -2- tried more advance. We have packed out the long reach "Bosch" plugs so that they come inside a pocket, this makes the engine fire irregularly. With our own engine, if we definitely put the… | ||
| Scan094 | Letter proposing a newly designed aero sparking plug. | ||
| View original record | 21 X2514 D APR 1918 Personnel Lane End Dollis Hill Lane Cricklewood N.W. 2 7. 4. 18 Messrs Rolls-Royce Ltd Dear Sirs, I have designed an aero sparking plug giving the maximum spark at all compressions… | ||
| Scan095 | Unreliability of sparking plugs and test methods to observe failure modes in 'Eagle' cylinders. | ||
| View original record | To R. from EH. c. to CJ. c. to E. c. to BY. c. to EP. c. to Da. EHS/LG.8.5.18. 8th May 1918. X.2514 - SPARKING PLUGS We are continually having new type plugs submitted to us for test. We are always… | ||
| Scan096 | Technical report on the performance of various spark plugs, observing their temperature characteristics and pre-ignition points. | ||
| View original record | -2- Contd. We shall be sending a report on this. One can only distinguish the plug when some portion of it becomes red hot. So as to be able to know where to look in the cylinder, we can time one… | ||
| Scan097 | Spark plug failures due to overheating and carbon, and the testing of various plug types. | ||
| View original record | Contd. -3- fixed in the end. This type of plug we could not by any means make the centre electrode red hot. We did get the bar which forms the earthed electrode red hot. Lately Mr. Ferranti brought… | ||
| Scan098 | Ideal spark plug insulator materials and designs to resist carbon build-up. | ||
| View original record | Contd. -4- EH3/LG8.5.18. The ideal plug would be one which the insulator kept so hot that no carbon would stay on it, this suggests a pot insulation but no material we have tried will stand up. The… | ||
| Scan099 | The performance of modified ignition plugs designed for easier cleaning. | ||
| View original record | R.R. 225 A (400 T) (S.C. 536. 15-2-16) G. 1546. To EH. from R. c. to CJ. X.2514 R4/G14.5.18. X.2514.- X.2517. -RE IGNITIONS PLUGS. You will remember sometime ago you made some ignition plugs which… | ||
| Scan100 | Letter to the Air Board Technical Dept. discussing the advantages of using jump spark distributors for the 'Condor' engine ignition. | ||
| View original record | COPY. Copy to CJ. from R. c. to EH. c. to EFC. X.2514. R20/G14518. 1320 (5 lines) 14th May. 1918. X.3299. X.2514. X.3292. Controller, Air Board Technical Dept., Central House, Kingsway, LONDON. W.C.2.… | ||
| Scan101 | Ignition plug failures from sooty deposits and the potential of a jump spark distributor. | ||
| View original record | To EH. from R. c. to CJ. c. to EFC. X.2514 14th May. 1918. R21/G14.5.18. X2514 RE IGNITION PLUGS. X.2514. X.3199. X.3299. Recently you wrote me on the subject of ignition plugs in which you found that… | ||
| Scan102 | Experiments into pre-ignition and ignition, focusing on the overheating effects of different spark plug designs. | ||
| View original record | To R. from EH. c. to CJ. c. to E. c. to BY. c. to EP. c. to Da. X2574 EH1/LC15.5.18. X.2410 X.2514. PRE-IGNITIONS & IGNITION In our report on exhaust valves burning, we mentioned that we could not… | ||
| Scan103 | Analysis of engine overheating causes related to ignition, spark plug gaps, plug temperature, and compression ratios. | ||
| View original record | Contd. -2- EH/LG:5.5.18. ignition does not cause over-heating is because the charge burns so slowly. One can quite understand the charge burning slowly because there can be very little compression in… | ||
| Scan104 | Engine tests on pre-ignition, overheating, and detonation, noting the effect of charge temperature. | ||
| View original record | Contd. -3- arranged two plugs which fired from separate magnetos. One magneto was set standard and was running the engine; the other was set to pre-ignite. We could, by means of high tension switches… | ||
| Scan105 | Investigation into engine pre-ignition and the effect of warming up the fuel-air charge. | ||
| View original record | Contd. -4- EH1/LG15.5.18. engine which demonstrates the effect of warming up the charge it frequently happens when the ignition is switched on to start the engine, the coil "buzzes" for some time and… | ||
| Scan106 | Analysis of engine 'running on' after being switched off, exploring causes like spontaneous combustion and temperature. | ||
| View original record | Contd. -5- E.1/LG15.5.18. causes that helps to warm the charge:- 1. At low speeds one would expect that the turbulence in the combustion chamber to be much less. 2. The charge is in the cylinder for a… | ||
| Scan107 | Comparison of magneto versus battery ignition systems, noting performance differences under various conditions. | ||
| View original record | Contd. -6- EH1/LG15.5.18. best of the charge, we believe there is a greater heat value given out to charge in the "Bosch" type magneto spark than there is in the "snappy" battery ignition spark. Under… | ||
| Scan108 | Sparking plug tests with manufacturers Lodge and K.L.G., and proposing the testing scheme to the Air Board. | ||
| View original record | To R. from EH. c. to CJ. X. 2514 EH2/LG30.5.18. X.601 X.1918. X.2514 - RE SPARKING PLUG TESTS+ We have had Mr. Lodge the maker of Lodge Sparking Plugs and Mr. Lee Guiness the maker of K.L.G. Plugs at… | ||
| Scan109 | Continued document discussing issues with porcelain cracking under excessive heat, particularly with special plugs from 'Lodge'. | ||
| View original record | Contd. -2- EH2/LG30.5.18. trouble with porcelain. We have not yet had a porcelain which will stand up to any excessive heat without cracking. We have not given up, because we think that a lot of the… | ||
| Scan110 | From E.H. to C.J. dismissing a suggestion for sparking plugs as impracticable. | ||
| View original record | X2514 To C.J. from E.H. EHL/LG30.5.18. 30th May. 1918. F.R. With reference to the attached suggestion for Sparking Plugs - the idea contained therein is quite impracticable. EH. File JS 1618 [Circular… | ||
| Scan111 | CJ to EH regarding a request from Mr. Thos. W. Hall. | ||
| View original record | To EH from CJ. 28th May 1918. CJ22/E28518. Referring to the attached letter dated 25th May from a Mr. Thos.W.Hall, B.Sc., of 7, Churchill Terrace, Holywood, Co.Down, if you think Mr.Royce would desire… | ||
| Scan112 | Letter suggesting the use of a fusible alloy instead of mercury for cooling aeroplane engine spark plugs. | ||
| View original record | I. F.R. M.D. 28 MAY 1918 7 Churchill Terrace, Holywood, Co. Down. 25th May, 1918 Sir, I believe that the sparking plug used on aeroplane engines is liable to become overheated. I believe that if the… | ||
| Scan113 | Letter from a draughtsman proposing a plug modification using fused metal instead of mercury. | ||
| View original record | be preferable to the mercury cup one as it would be cheaper & although the fused metal would be lighter than mercury it would have a higher specific heat so that it should work equally well. If you… | ||
| Scan114 | Proposal to modify aero engine spark plugs with a fusible alloy plug. | ||
| View original record | 2 Woodbrook Villas, Ballygomartin Rd, Belfast. 18.1.19. [Stamp: V.I.D 21 JAN 1919] [Initial Stamp: F.R.] [Initials: CJ] Dear Sir, In reply to yours of CJG/E1618 of 1st June, 1918, might I ask whether… | ||
| Scan115 | Letter politely declining a suggestion due to being fully occupied with war work. | ||
| View original record | R. R. LONDON FILE COPY NOT TO BE REMOVED. CJG/E1618 1st June 1918. Thos.W.Hall Esq., B.Sc., 7, Churchill Terrace, Holywood, Co.Down. Dear Sir: Thank you very much for your letter of the 25th ultimo.… | ||
| Scan116 | Telegram concerning the testing of new plugs designed to withstand overoiling and heat conditions. | ||
| View original record | R.R.'235 A (400 T) (S.C. 536 15-9-16) G. 1545. Confirmation X254 Telegram 5th June 1917. ROYCAR DERBY COMMANDER BRISTOWE IS SENDING LIEUTENANT BOOTH TO DERBY WITH THREE DOZEN NEW PLUGS WHICH IT IS… | ||
| Scan117 | Urgent need to supply a temporary type of sparking plug to customers. | ||
| View original record | X. 2514 .X. 601. EH. from BY/RB. c. to EP. BY/RB2/P29.3.19. RE SPARKING PLUGS. We attach herewith a copy of a letter from the Lodge Sparking Plug Company, and 2 sample plugs, C 3 and C 9 type. You… | ||
| Scan118 | Test results for various spark plugs under compression pressure after an engine run. | ||
| View original record | R.R. & S.(100 T) (S.F. Dept.) Hm. 1/920/2c. X.2514. 3 Particulars of test of Plugs with compression pressure. Test made after plugs had been run for approximately 20 miles in an engine.… | ||