Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Testing of a new petrol-proof enamel called 'Peprenel'. | ||
| View original record | X.8064 C O P Y. To EH. from BY. 22nd. May, 1918. BY4/P22518. RE PETROL PROOF ENAMEL. I am sending you herewith one half pint tin of a new preparation called "Peprenel". The makers remark that all that… | ||
| scan0002 | Two enamel samples for carburetters and engines sent for experimentation. | ||
| View original record | To Wor. for Mr. Coverley. from EFC. EFC18/T5.6.17. X.3087 - RE ENAMELS FOR CARBURETTERS AND ENGINES Herewith please receive 2 samples of enamel, together with copy of instructions we have received… | ||
| scan0003 | Request to the Experimental Department to test two different enamel samples for use on carburettors and engines. | ||
| View original record | To Exptl.Dept. from BY. Copy to Mr. Mills. 5th June, 1917. BY6/G5617. X. 3067 RE ENAMELS FOR CARBURETTORS AND ENGINES. Herewith please receive two samples of enamel - (1) Petrol Resisting Enamel… | ||
| scan0004 | Specifying the stoving temperature for petrol-resisting enamel on carburettors and engines. | ||
| View original record | To Mr. Clark, from BY. 12th June, 1917. BY14/G12617. X.3067 RE ENAMELS FOR CARBURETTORS AND ENGINES. Further to our memo BY6/G5617, the temperature at which the Petrol Resisting enamel should be… | ||
| scan0005 | Stoving temperature for enamels used on carburetter bodies and engines. | ||
| View original record | To Wor. for Mr. Coverley. from EFC, EFC13/T12.6.17. X.3067 - ENAMELS FOR CARBURETTERS AND ENGINES Further to our memo and 2 samples of above enamels, herewith please receive copy of a further memo we… | ||
| scan0006 | On experimental petrol and oil resisting enamels, requesting more of the satisfactory oil-resisting version. | ||
| View original record | R.R. 235B (200 T) (S.D. 408. 26-4-17.) Bm. 2/156/12. To O.O. from EFC. EFC1/AT31.8.17. X.3067.-EXPERIMENTAL PETROL & OIL RESISTING ENAMELS. With reference to the above enamels we have experimented… | ||
| scan0007 | Report on petrol resisting enamels for carburettors and engines, with a handwritten reply. | ||
| View original record | To By from EFC. [Handwritten: from By] EFC13/T29.8.17. X.3067 - PETROL RESISTING ENAMELS FOR CARBURETTERS AND ENGINES Herewith please receive copy of a report we have had from the Experimental Dept.… | ||
| scan0008 | The trial of petrol and oil resisting enamels on a float chamber casting. | ||
| View original record | R'R. 235 A (776 H) S.D. 442. 9-5-17) G. 1965 Mr. Clark. 25.8.17. RE PETROL & OIL RESISTING ENAMELS X.3067. We have tried the above enamels and the Castrol Resisting Enamel was applied to a float… | ||
| scan0009 | Notification regarding the receipt of one gallon of Castor Oil Resisting Enamel. | ||
| View original record | R.H.C. By Mr. Clark. 19.9.17. X.3067. Wd/EN8/E19917. Oil resisting enamel Please note, we have received one gallon of Castor Oil Resisting Enamel "Grey", from Messrs. Griffiths Bros. This may be had… | ||
| scan0010 | Sending a sample tin of petrol proof enamel to the Experimental Department for testing. | ||
| View original record | R.R. 235a (200 T) (S.D. 408. 26-4-17.) Bm. 2/156/12. To Experimental Dept. from BY. X3067 29th October.1917. BY2/P291017. RE PETROL PROOF ENAMEL. I am sending you herewith a sample tin of another make… | ||
| scan0011 | Sample of air-drying petrol proof enamel from supplier Challoner & Co. Ltd. | ||
| View original record | R.R. 235B (200 T) (S.D. 408. 26-4-17.) Bm. 2/156/12. X3067 7th November.1917. BY5/P71117. To EH. from BY, RE PETROL PROOF ENAMEL. Referring to my memo of the 29th inst., on Messrs. Challoner & Co.Ltd,… | ||
| scan0012 | Inquiry into the petrol-resistant enamel used in Hobson's H.C.7 Carburetters. | ||
| View original record | x3067 Mr.Hives from Wd. 9th November,1917. Wd7/NJ91117. x3067 Hobson's H.C.7 Carburetters. Last month you mentioned to me that the float chamber of this type of carburetter is coated inside with some… | ||
| scan0013 | Proposal to treat carburettor corrosion by using a coating of copal varnish. | ||
| View original record | R.R 235 a (200 T) (S.E. 527. 21-2-18) G. 2129 X.3064 June 11. 1918. BY19/P11618. To EH. from BY. c. Mr Hall. c. EP. c. EFC. Handwritten note: Treatment to insides with copal varnish to prevent… | ||
| scan0014 | Investigation into the cause of soapy sediment forming in an airship carburettor float chamber. | ||
| View original record | R.R. 300 (120 B) (SC. 576. 25.2.16) E.P. 1262. ORIGINAL 3310 X.3064 59237 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To EP & EXP. X.3004 X.3484 Order No. Customer's No. Laboratory Re: Airship Carburettor Recd… | ||
| scan0015 | Request to conduct experiments on carburetter float chamber corrosion by adding water to petrol. | ||
| View original record | X.3067 January 2. 1919. WH. from BY. C. Mr Mills. C. Mr Hives. C. Mr Hall. C. EP. C. EFC. BY11/F211919. CARBURETTERS. X.3067. RE CORROSION OF FLOAT CHAMBERS. X.3484 Kindly carry out some experiments… | ||
| scan0016 | Corroded carburetter float chamber and the testing of petrol-proof enamels. | ||
| View original record | R.R. 235 B (200 T) (S.E. 527, 21-2-18) G. 2129 EH. from BY. c. MFC. c. EP. c. Mr Hall January 2. 1919. BY2/P211919. X.3067 CARBURETTERS. RE PETROL PROOF ENAMELS. X 3784 You inspected a carburetter… | ||
| scan0017 | Petrol and oil proof enamels for carburetter float chamber castings. | ||
| View original record | To BY. from EFC. EFC6/T2.1.19. 2nd. January 1919. X.3067 RE PETROL AND OIL PROOF ENAMELS. X.3482 Regarding your note BY2/P2119, you will remember handing over some time ago under your BY11/G5.617,… | ||
| scan0018 | Laboratory note regarding scum formation in a carburetter casing caused by electrolytic action. | ||
| View original record | X.3064 EFC. January 4th, 1919. X.3484 Laboratory. H12/B4119. In answer to your note EFC1/AT3119. All reference to the scum formed, due to the electrolytic action of water, in a carburetter casing is… | ||
| scan0019 | Whether the addition of water to petrol produces corrosion in the float chamber. | ||
| View original record | 18.9.19. X.3067.-CORROSION OF FLOAT CHAMBER. X.3484 Mr. Hives was asked to determine whether corrosion could be produced merely by the addition of water to the petrol, he now reports that this does… | ||
| scan0020 | Request for samples of varnish P.C.12 and V.84 in order to test and report upon them. | ||
| View original record | Wd. c. to By. c. to Bn. [struck through] c. to Hs. X3067 EP/P7/F7.4.21. With reference to By's memo' By16/P1.4.21, we should be glad if the Order Office would kindly let us have a sample of the… | ||
| scan0021 | Trial of an oil-proof enamel to coat the inside of gearboxes to prevent damage from loose particles. | ||
| View original record | R.R. 235 A (100 T) (S F. 846, 6-8-19) G. 2460 X3067 BY/16/H. 26. 4. 20. 1290 Hs. --- CHASSIS GEAR BOX. RE THE QUESTION OF THE USE OF ENAMEL WHICH IS UNAFFECTED BY OIL.… | ||
| scan0022 | To Mr. Hives forwarding a letter and a sample of Anti-Benzol Enamel from a supplier for testing. | ||
| View original record | Mr. Hives X 3067 Wd/GEA.1/AG.11.3.21. We send you herewith copy of letter received from Messrs. Donald Macpherson & Co. Ltd., dated March 3rd 1921, concerning their Anti-Benzol Enamel for Gear Boxes,… | ||
| scan0023 | Copy of a letter from Donald Macpherson & Co. Ltd. regarding a sample of Grey Anti-Benzol Enamel. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP 180865 X3067 C O P Y Messrs. Donald Macpherson & Co. Ltd., Knott Mill, MANCHESTER. 3rd. March 1921. Dear Sirs, With reference to our Mr. Sugden's interview with you… | ||
| scan0024 | Request for a report on samples of Anti-Benzol Enamel for Gear Boxes and Crank Cases. | ||
| View original record | Mr. Hives. X3067 Wd/GEA.5/AG.31.3.21. We confirm ours Wd/GEA 1./AG.11.3.21. which was accompanied by samples of Anti-Benzol Enamel for Gear Boxes, Crank Cases etc. supplied by Messrs. Donald… | ||
| scan0025 | Requesting the testing of an Anti-Benzol Enamel sample. | ||
| View original record | x 3067 Mr. Hives. Wd/GEA.2/AG.7.4.21. We confirm our memos of the 11th and 31st ult. (ref. Wd/GEA.1/AG. & WD/GEA.5/AG.) regarding sample of Anti-Benzol Enamel, which accompanied our memo of the 11th… | ||
| scan0026 | The provision of Battleship Grey paint for crankcases and gearboxes. | ||
| View original record | Mr Hancock X3067 Hs. BY/HM19/H, 28. 3. 24. RE CRANKCASE & GEAR BOX. X3067 We are sending you two gallons of Battleship Grey Paint which is petrol and oil proof, for painting the inside of the… | ||
| scan0027 | Testing Thomas Howse Ltd's 'Thermax' Fireproof Silencer Black Japan enamel. | ||
| View original record | X3067 MX. c. Hs. BY8/H. 7.5.25. As you have tried a number of supposed fire-proof enamels previously on dynamometer test, for a number of chassis, I am sending you herewith a tin of Thomas Howse Ltd's… | ||
| scan0028 | Sample of Cerric enamel from John Hall & Sons to be applied to an engine for a type test. | ||
| View original record | Lov. RHC. X3067 EB/Thn6/T10.12.31. Re. CERRIC ENAMEL FOR AERO ENGINES. With reference to the visit of John Hall & Sons representative whom you brought to us a few weeks ago. The sample enamel has now… | ||
| scan0029 | Comparative endurance testing of road wheel enamelling from Dunlop versus Rolls-Royce's own process. | ||
| View original record | Mr Hancock Please arrange on next car for France HS X4107 Wd. Hs. [Strikethrough] BY5/H. 3. 3. 25. ENAMELLING OF ROAD WHEELS. ---------------------- There is no doubt but that the Dunlop Company have… | ||
| scan0030 | Arranging the despatch and treatment of six wheels, some by the Dunlop Company and some internally. | ||
| View original record | X4107 BY. Wd. Hs. --- BY7/H. 6. 3. 25. -------------- The Experimental Dept. are putting six wheels at our disposal at once, in accordance with my memo BY5/H.3.3.25. I have instructed them to send… | ||
| scan0031 | Correspondence regarding the enamelling and testing of various road wheels from Dunlop Rubber Co. | ||
| View original record | By. from Wd. c.to Hs. X4107 Wd5/NJ/13.3.25. Enamelling of Road Wheels. In accordance with yours By5/H3.3.25, I wrote The Dunlop Rubber Co. to get ready as soon as possible the under-mentioned wheels:-… | ||
| scan0032 | Terms and liability for reconditioning wheels supplied by Dunlop Co. for testing. | ||
| View original record | - 2 - first instance, I asked them to let us know the terms upon which they would supply the wheels to us. They have replied suggesting that after the tests the cost of reconditioning the wheels be… | ||
| scan0033 | Enamelling and supply of road wheels from Dunlop Rubber Co. | ||
| View original record | By. from Wd. c.to Hs. c.to By/HM. 46107 Wd7/NJ30.3.25. Enamelling of Road Wheels. I confirm mine Wd5/NJ13.3.25. I have just had a 'phone message from the Dunlop Rubber Co. stating that they are… | ||
| scan0034 | Request for views on the rusting of experimental Dunlop wheels after a 10,000-mile trial. | ||
| View original record | Handwritten: AH Can you let us have a report on these wheels S/W By. Yellone c/f for BJ Y4107? Typed: re Rusting of Dunlop Wheels. ----- As the car on which these experimental wheels were fitted has… | ||
| scan0035 | The supply and enamelling of Dunlop wheels for 20 HP and 40/50 HP chassis. | ||
| View original record | By. from Wd. c.to Hs. c.to By/HM. c.to OC/AW. X4107 Wd1/NJ22.6.25. 20 HP. and 40/50 HP. Chassis. Enamelling of Road Wheels. Please refer to my note Wd7/NJ30.3.25 and your note By/HM8/W7.4.25. You will… | ||
| scan0036 | Results of experiments on the enamelling of road wheels. | ||
| View original record | To BY. from Hs. c. to Wd: X4107 Hs2/LG23.6.25. Enamelling of Road Wheels. With reference to Wd1/NJ22.6.25. We assume that the experiments as regards the different enamelling of wheels are now… | ||
| scan0037 | Comparison of enamelling methods for road wheels between Dunlop and Rolls-Royce. | ||
| View original record | Wd. c. Hs. XCH07 ENAMELLING OF ROAD WHEELS. We have already written to Sales, reference BY4/H. 11.6.25. and informed them that there is no appreciable benefit when comparing the new Dunlop method and… | ||
| scan0038 | Trial on artillery wheels. | ||
| View original record | - 2 - BY2/H. 25.6.25. artillery wheels, will try out the same thing, as it will be no more expensive, and will be confirmatory or otherwise of the results. BY. By | ||
| scan0039 | Follow-up memo regarding the handover and re-enamelling of wire wheels after road tests in France. | ||
| View original record | Hs. XH07 Wd/AW23/W10.7.25. Following on our memo Wd/AW26/W2.7.25, of the 2nd inst., wherein we asked you to hand over to the Despatch Stores:- 6 - 32 x 4½ S.S. E.5 type Wire wheels. 6 - 32 x 4½ S.S.… | ||
| scan0040 | Proposal to abandon 'A' type steering in favour of a long chassis with 'B' type steering. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X.3548. To BY. from Bn. X.3706 To Da. from Bn. X.3548. c. to R. c. to Hs. X.3465. c. to CJ. c. to CK. c. to C. Bn2/W30.10.19. RE PROPOSAL TO… | ||
| scan0041 | The policy on American chassis manufacture, continuing right-hand drive models and ceasing left-hand drive production. | ||
| View original record | RR/A POLICY OY'S YES. TO STD R.H. 40/50 UNTIL To Wor. from Bn. Copy to Bl. X.3614. Da. X.3548. BY. Hs. Bn9/W31.10.19. CK. RE AMERICAN CHASSIS. Mr. Johnson telephoned this afternoon that he has… | ||
| scan0042 | Instruction from Mr. Royce to change the bevel gear ratio for the Vulture rear axle to 4.75 to 1. | ||
| View original record | X3548 1S To Da. from E. Copy to CJ. " " Bn. " " Hs. " " Ck. E1/G12.2.20. X.3873. RE VULTURE REAR AXLE.S I am desired by Mr. Royce to inform you that the ratio of the bevel gears for the Vulture rear… | ||
| scan0043 | Confirmation of a telegram regarding instructions for testing and comparing induction pipes for various engines. | ||
| View original record | X.3548 14 CONFIRMATION OF TELEGRAM. 19th February, 1920. ROYCAR DERBY. X.3843. Re Vulture Induction Pipes. X.3548 X.2243 HIVES MR. ELLIOTT WAS SENDING INSTRUCTIONS FOR THE TEST OF FORM INDUCTION PIPE… | ||
| scan0044 | Gear ratio alterations and alternatives for the Vulture rear axle. | ||
| View original record | X35248 To R from DA. Copy to BH. [Struck through] Copy to CK. DA12/CB20-2-20. 15 X.3873 RE VULTURE REAR AXLE. --------------------- With reference to Mr Elliott's E1/G12-2-20 we have altered "N"… | ||
| scan0045 | Extract of a memo regarding induction pipes for the 'Buzzard' engine. | ||
| View original record | X. 3873 4548 16 Extract from El/G23.2.20. X.3803 - RE INDUCTION PIPES FOR "BUZZARD" ENGINE X.3873. X.3832. With regard to the queries in your memo, the "Buzzard" back axle ratio may be taken as being… | ||
| scan0046 | Steering position and pedal mechanism for the 'Buzzard' and 'Vulture' models. | ||
| View original record | Y35248 17 To Da. from E. Copy to CJ. " " Bn. " " Hs. " " Ck. E1/G23.2.20. X.3929. RE "BUZZARD" AND "VULTURE" STEERING POSITION X.3930. AND PEDAL MECHANISM. X.3931/2. We send you herewith drawing No.… | ||
| scan0047 | Clarifying the rear axle gear ratios for the 'Buzzard' and 'Vulture' engines. | ||
| View original record | X3528 22 To Da. from E. Copy to CJ. " " Bn. " " Hs. X.3832. " " Ck. X.3873. RE "BUZZARD" AND "VULTURE" REAR AXLE GEAR RATIOS. E2/G29.3.20. Information has already been sent that the back axle ratio of… | ||
| scan0048 | Mr. Royce's design criticisms for the 'Buzzard' and 'Vulture' rear axle. | ||
| View original record | X3548 27 To Da. from E. c. to CJ. c. to Bn. c. to Hs. c. to By. c. to EFC. E5/G3 06.20. X.3832 RE "BUZZARD" AND "VULTURE" REAR AXLE. X.3873. With reference to your N. scheme 339, would you kindly note… | ||
| scan0049 | Design changes to axle tubes and ratios, referencing schemes 503 and 339. | ||
| View original record | 28 Contd. -2- E5/G30.6.20. resist the torque that would be imposed by screwing on a nut with a tight thread. The latter feature to prevent turning, will resist any torque that is likely to be imposed,… | ||
| scan0050 | Approval and specifications for the 'Buzzard' and 'Vulture' rear axle. | ||
| View original record | To By. from Da. Copy to Hs. (1 print). Copy to TB. (1 print). Copy to RHC. (1 print). Copy to EFC. X.3832. "RE "BUZZARD" AND "VULTURE" REAR AXLE. X.3873. Please receive herewith two blue prints of "N"… | ||
| scan0051 | Drawing No. LeC.1255 for the 'Vulture' engine crank and ordering the necessary forgings. | ||
| View original record | To Da. from E. Copy to CJ. " " Bn. " " By. " " Hs. " " EFC. X.3837. RE "VULTURE" ENGINE. E1/G24.7.20. We send you herewith drawing No. LeC.1255 giving particulars of crank for "Vulture" engine. Would… | ||
| scan0052 | Request to alter the 'Vulture' crankshaft, lengthening the journal and moving the front main bearing forward. | ||
| View original record | R. R. 235A (100 T) (S. H. 159, 11-8-20) G. 2800 [Handwritten]: X3837 [Handwritten, crossed out]: X3548 [Handwritten, top right]: 35 E4/G15.9.20. To Da. from E. Copy to CJ. " " Hs. " " EFC. " " By. X.… | ||
| scan0053 | Instruction to alter the dimensions of the 'Vulture' crankshaft. | ||
| View original record | R.R. 285A (100 T) (S.G. 643, 19-2-20) G. 2818 X3548 37 E1/G29.9.20. To Da. from E. c. to CJ. c. to Hs. c. to By. c. to EFC. X.3837. RE " VULTURE" CRANKSHAFT. Would you kindly instruct that the… | ||
| scan0054 | The 'Vulture' Cylinder Head, referencing drawing LeC.1297. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2200 X3548 42 To Da. from E. Copy to CJ. " " Bn. " " Hs. " " By. " " EFC. X.3841. RE "VULTURE" CYLINDER HEAD. We send you herewith drawing LeC.1297 shewing the… | ||
| scan0055 | From Mr. Royce discussing the oil relief system for the 'Vulture' engine, focusing on oil pressure and relief pipe sizing. | ||
| View original record | To Hs. from E' c. to CJ. c. to Da. c. to EFC. *4103 X3548 47 E3/G3.11.20. X.4103. RE OIL RELIEF SYSTEM FOR "VULTURE" ENGINE. In connection with the question of the excessive pressure in the oil system… | ||
| scan0056 | Request for a report on the design and lubrication of spring shackles and bushes for the Goshawk export chassis. | ||
| View original record | To Hs. from Da. c. to BY. X4548 59 Dal/M6. 9. 22. GOSHAWK X.4261. X.4547 We should be obliged if you could tell us whether you have come to any definite conclusion regarding the spring shackles,… | ||
| scan0057 | Drawings for the 20 HP clutch, suggesting additions to the instruction book regarding wear indication and spring adjustment. | ||
| View original record | To Mr. from c. to TD. c. to Hs. X35748 EL/M27.9.22. CH 20.H.P. CLUTCH. Y2864 We send you herewith drawings Nos. Led 1625 & 6, shewing the above. With regard to the former we would draw your attention… | ||
| scan0058 | The drawing for the 'Stork' front axle radius rod bracket X.4547. | ||
| View original record | To BY. from Da. c. to CJ. Wor. Hs. X4548 Dal/M30.9.22. "STORK" FRONT AXLE RADIUS ROD X.4547. We send herewith N.sch.1325 shewing the bracket for the above radius rod. It is intended that one fork of… | ||
| scan0059 | Blueprint for a proposed drive for testing a tyre air pump driven by a camshaft. | ||
| View original record | To Hs. from BY/Shn. X3548 70 BY/Shn6/DB10.10.22. RE TESTING AIR PUMP DRIVEN BY CAMSHAFT. X.3454 X.3850 X.3423 As requested, please receive herewith one blueprint of drawing prepose shewing proposed… | ||
| scan0060 | Revision to the 'Stork' front axle radius rods, specifically the rear bracket and ball end joint. | ||
| View original record | To BY. from Da. c. to CJ. c. to Wor. c. to Hs. X3548 71 Da2/M11.10.22. "STORK" FRONT AXLE RADIUS RODS X.4547. Please receive N.sch.1336 shewing details of the radius rods, and also a revised… | ||
| scan0061 | Drawings for the 'Heron' air pump for four-wheel brakes, highlighting required modifications to the springs. | ||
| View original record | To BY. from E. c. to CJ. Wor. Hs. "HERON" - AIR PUMP FOR FOUR WHEEL BRAKES X.3850 X.4550. We send you herewith drawings Nos. LeC.1641 & 1643 shewing respectively air pump and control valve springs,… | ||
| scan0062 | Modifications to the front axle radius rods for the 'Heron' & 'Stork' models. | ||
| View original record | To BY. from Da. c. to CJ. c. to Wor. c. to Hs. X3548 Da2/M1.12.22. 83 "HERON" & "STORK" FRONT AXLE RADIUS RODS. X.4547. We send herewith N.sch.1324 shewing the front end of the radius rods and the… | ||
| scan0063 | Design changes to steering components, shock absorbers, and axle forgings. | ||
| View original record | contd: -2- 84 We have shewn the adjusting screw on the cross steering tube with a slightly increased square to suit that on the radius rod end. We have also increased the thread to xx .750. It will be… | ||
| scan0064 | The operating gear for the 'Heron' and 'Stork' exhaust system cut-out. | ||
| View original record | To BY. from Da. c. to WJ. WOR. HS. X35248 85 Da4/M8.12.22. "HERON" & "STORK" EXHAUST SYSTEM. X.3859. We send herewith N.sch.1359 shewing the operating gear for the cut-out shewn on N.sch.1358. It is… | ||
| scan0065 | The general arrangement of 'Stork' & 'Heron' radius rods, side steering tube, and other front-end components. | ||
| View original record | To BY. from Da. c. to CJ. Wor. Hs. X3548 86 Da6/M8.12.22. "STORK" & "HERON" RADIUS RODS & SIDE STEERINF TUBE. X.4547 X.3991. We send herewith N.sch.1327, a general arrangement of the radius rods, side… | ||
| scan0066 | Modifications to the exhaust system for the 'Stork' and 'Heron' models. | ||
| View original record | To BY. from Da. c. to CJ. Wor. Hs. VB548 87 Da3/M8.12.22. "STORK" & "HERON" EXHAUST SYSTEM. X.3859. We send herewith N.sch.1358 shewing the silencer combined with the cut-out which it is intended to… | ||
| scan0067 | The 'Heron' project schematic N.sch. 1341, requesting prints and noting modifications to the servo motor and brake system. | ||
| View original record | R TO BY. FROM DA. c. to CU. c. to WOR. c. to HS. ✓ DAA/1/30.12.22. "HERON". X3528 We send you herewith N.sch. 1341. This shews a good many of the principle features on the "Heron", and we send it to… | ||
| scan0068 | Modifications to the 'Stork' & 'Heron' front spring shackles, including a new method for securing bolts. | ||
| View original record | To BY. from Da. c. to CJ. Wor. Hs. Da5/M8.12.22. "STORK" & "HERON" FRONT SPRINGS X.3988. We send you herewith N.sch. 1357 shewing the rear shackles on the front springs which are modified to clear the… | ||
| scan0069 | Temporary design for the 'Stork' & 'Heron' steering gear, with a note on the upcoming 'Seagull' design. | ||
| View original record | To BY. from Da. c. to CJ. c. to Wor. c. to Hs. "STORK" & "HERON" STEERING GEAR X.3929. We send herewith N.sch.1362 shewing a design of plain thrust bearing for the "Stork" and "Heron" to make the… | ||
| scan0070 | Temporary bracket for a bottom front shock absorber for 'Stork' & 'Heron' four-wheel brake systems. | ||
| View original record | X3548 91 To BY. from Da. c. to CJ. c. to Wor. c. to Hs. Dal/M15.12.22. "STORK" & "HERON" FOUR WHEEL BRAKES X.4550. We send you herewith N.sch. 1363 shewing the temporary bracket for bottom front shock… | ||
| scan0071 | To hold up an experiment for the 'Stork' bonnet due to a new drawing. | ||
| View original record | c. to EFC X3548 97 BY/Shn2/DB.22.1.23. X.3862 - "STORK" - BONNET. Will you please hold up experiment for the above issued under memo BY/Shn10/DB.20.12.22, as a further drawing has come through for… | ||
| scan0072 | Mr. Royce's request for a further vibration test on the Goshawk 11 engine crankcase. | ||
| View original record | To Hs. from E. c. to CJ. c. to BY. c. to EP. X634 X4604 98 GOSHAWK 11. X.4220 E2/M5.6.23 X.634 Referring to the 3000 r.p.m. vibration, Mr. Royce is not satisfied that the test for proving that this is… | ||
| scan0073 | Telegram requesting a reliable magneto for a motor cycle. | ||
| View original record | Handed in at: Bror M. Chichester No. of Telegram: S2 Sent: 1-50 M. To: Royce Derby Message: Hives small magneto for motor cycle promised last year very much desired to be here by thursday morning. can… | ||
| scan0074 | Telegram proposing a new three-point engine suspension design. | ||
| View original record | CONFIRMATION POST OFFICE TELEGRAPHS (22892) EM5674 20,000M 11/22 R.&Co.Ltd. E1353. Handed in at: 14 Nov M. Chichester T Sent: 1-50 M. To (Time): 320 Office Stamp: DERBY Addressee: ② Roycar Message: We… | ||
| scan0075 | Telegram instructing on the desired minimal flexibility of the propeller tube. | ||
| View original record | POST OFFICE TELEGRAPHS. CONFIRMATION (22892) EM5674 20,000M 11/22 R.&Co.Ltd. E1353. B or C 3. If the receiver of an Inland Telegram doubts its accuracy he may have it repeated on payment of half the… | ||
| scan0076 | Telegram enquiring about the effect of the centre of gyration on vibrations and alternative rigid fixing arrangements. | ||
| View original record | Printed Form Information: (2618) EM7777 40,000M. 2/23 R.&Co.Ltd. E.1405. B or C POST OFFICE TELEGRAPHS. If the receiver of an Inland Telegram doubts its accuracy he may have it repeated on payment of… | ||
| scan0077 | Telegram clarifying the term 'vigorous damping' for damping rods. | ||
| View original record | Roycar X4615 more or less vigorous damping rods or this reversed stop vigorous damping understood to mean up to immovable fixing under ordinary road conditions Royce | ||
| scan0078 | Suspension of the Goshawk 11 power unit to eliminate torque reaction vibration. | ||
| View original record | X4604 10S To BY. from E. c. to CJ. Hs. EP. E1/M12.9.23. GOSHAWK 11. SUSPENSION OF POWER UNIT WITH ARMS ON FRONT END OF CRANKCASE. X.3535 X.4604 We send you herewith drawings Nos.LeC. 1743/4 dealing… | ||
| scan0079 | Urgent need for experiments on the suspension of 40/50 and Goshawk engines. | ||
| View original record | To Hs. from E. c. to CJ. BY. X.4604 E1/M14.9.23. 104 RE. METHOD OF SUSPENDING ENGINE. X.4604. Would you kindly note, we regard the experiments in connection with the suspension of the 40/50 and… | ||
| scan0080 | Outline of torque reaction vibration experiments to be conducted on Goshawk I and II engines. | ||
| View original record | To Hs. from E. c. to CJ. BY. X.4604. El/M20.9.23. 105 X.4604. TORQUE REACTION VIBRATION EXPERIMENTS. The experiments that Mr. Royce would like you to make in connection with the above are outlined by… | ||
| scan0081 | Sending drawings for torque reaction dampers on Goshawk I and Goshawk 11 engines. | ||
| View original record | To BY. from E. c. to CJ. E. X.4604 106 E2/M20.9.23. GOSHAWK 1. AND GOSHAWK 11. ENGINES X.4604 TORQUE REACTION DAMPERS. We send you herewith drawings Nos. LeC.1767 and 1768 - dealing with the above. E.… | ||
| scan0082 | Procedure to find the centre of gravity of an engine unit in end elevation using a knife-edge balance test. | ||
| View original record | X4604 Sept. 1923 107 TO FIND THE CENTRE OF GRAVITY OF UNIT IN END ELEVATION. Engine rested on knife edges by extensions from the crankshaft line. The line of the centre of the cylinders and crankshaft… | ||
| scan0083 | Page of calculations and diagrams related to moments of mass for a mechanical component. | ||
| View original record | -2- 705 contd:- The mass M, was then removed and a mass M2 added at A in the direction AX until the line A B assumed a horizontal position. This mass M2 was 144 lbs. Now the moment of this about the… | ||
| scan0084 | Blueprint of an 8 G II, 20 H/P Engine Unit showing components, dimensions and total weight. | ||
| View original record | 8 G II ENGINE UNIT. EXHAUST MANIFOLD, DYNAMO, MAGNETO & STARTER MOTOR FITTED. CARBURETTER NOT FITTED BUT ALLOWED FOR BY CALCULATION AFTERWARDS. TOTAL WEIGHT OF ENGINE UNIT 651 LBS 1 2 3 4 5 6 5.46"… | ||
| scan0085 | Telegram received by telephone from Royce regarding the availability of Hives. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. H4604 112 Time Received: 4-55 Date: 24.9.23 To: Roycar Derby By: JNB from: Chichester # 39 Message:… | ||
| scan0086 | The specifications, installation, and removal of the torque reaction damper for the Goshawk 11 engine. | ||
| View original record | X.4615. X4604 To BY. from E. c. to CJ. Hs. E1/M26.9.23. 113 GOSHAWK 11. ENGINE. TORQUE REACTION DAMPER AT FRONT END - PERMANENT SCHEME X4604 X.4615 We send you herewith LeC.1774 shewing the above. We… | ||
| scan0087 | Ongoing engine suspension experiments, stating a full report will be sent soon. | ||
| View original record | To E. from Hs. c. to CJ. x4604 Hs5/LG29.9.23. 116 ENGINE SUSPENSION. x4604 We are working continuously on Engine Suspension experiments. We have carried out most of the experiments asked for but we… | ||
| scan0088 | Instructions for locking the front engine suspension on a 6.EX car. | ||
| View original record | E. from Hs. X4604 117 Hs2/LG29.9.23. 6.EX CAR; ENGINE SUSPENSION. X4604 We are sending to you the necessary parts for locking up the front of 6.EX car engine suspension. We found that in order to be… | ||
| scan0089 | Fitting friction dampers to a 5-Goshawk-11 car at the Coachbuilders. | ||
| View original record | Da/Ev.from Hs. X4604 118 Hs4/LGl.10.23. 5-Goshawk-11 Car. X4604 We sending someone down tomorrow to complete the work on 5-Goshawk-11 car at the Coachbuilders. They are taking with them some friction… | ||
| scan0090 | Suggestion to create a scheme for fitting friction dampers to the 40/50 HP engine mounting. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to BY. c. to Da. X.4604. 119 Hs10/LG1.10.23. 40/50 ENGINE MOUNTING. X.4604. We suggest that a scheme is sent through showing how friction dampers could be fitted… | ||
| scan0091 | Private internal memo arranging a meeting for the following Tuesday at 11 o'clock to decide on a matter. | ||
| View original record | [Strikethrough]Rg.[/Strikethrough] - from Wor. " [Strikethrough]Bl.[/Strikethrough] - " " " Hs. - " " X4604 120 PRIVATE Wor13/M1-10-23. I attach a note from CJ., and I suggest that we meet in… | ||
| scan0092 | The positive results of new dampers on the Goshawk and recommending their immediate adoption. | ||
| View original record | COPY. To Wor. from CJ. Goshawk. CJ5/E28/9/23. R. finds the dampers on the Goshawk quite a distinct improvement - Much vibration has gone. He considers that they are so harmless that they can be fitted… | ||
| scan0093 | Overcoming torque reaction vibration in a 20 HP engine. | ||
| View original record | R.R. 403 (40 H) (SL 42 12-7-23). J.H., D. 44604 EXPERIMENTAL REPORT. 122 COPIES TO: R.CJ. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. X.634 REF. Hs7/LG1.10.23. OBJECT OF TEST. To find means of… | ||
| scan0094 | 20 HP engine vibrations and the effectiveness of friction dampers. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. 634 REF: Hs7/1/L.10.23. 123 20 HP. - ENGINE VIBRATIONS. We have been carrying out continuous tests in connection with the… | ||
| scan0095 | Investigating and mitigating engine vibration periods through modifications to engine mounting and the addition of weights. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. 124 EXPERIMENTAL REPORT. Expl. No. 634 REF: No7/LGL.10.23. are hardly discernible under any conditions, whereas, the other extreme is to be found on the… | ||
| scan0096 | Comparison of various engine mounting configurations and their effects on road performance. | ||
| View original record | Z-DOGLANK-11. 125 No. | Particulars of Mounting. | Effect on the road. ---|---|--- 1 | Standard G.11. engine mounting. | Bad vibrations at 16 m.p.h. Slight " 12 m.p.h. 2 | Standard mounting with… | ||
| scan0097 | Ongoing engine mounting experiments on a 20 HP unit. | ||
| View original record | To R. from Hs. c.c. to CJ. c.c. to De. c.c. to E. X4604 126 Hs11/LG1.10.23. ENGINE MOUNTING EXPERIMENTS. X4604 We are carrying out the following experiments in connection with the above :- We are… | ||
| scan0098 | Standardisation of friction dampers for engine mounting to reduce vibrations. | ||
| View original record | R.R. 755 (10H) (SL 72 18-7-23) MP 274954B. Y 4604 COMPLETED 7.11.23. STANDARDISATION of CHASSIS PARTS. Description of Parts. FRICTION DAMPERS TO ENGINE MOUNTING. Origin: To reduce vibrations.… | ||
| scan0099 | Exception to the normal 10,000-mile proving requirement for the 20HP chassis torque reaction damping and engine suspension. | ||
| View original record | STANDARDISATION - AN EXCEPTION TO THE NORMAL 10,000 MILE PROVING REQUIREMENT Mr Shelton. C. Mr Booth. C. Wd. C. EP. C. Hs. file CH/- BY12-P9.10.23. * CJ BY EP Hs 20HP CHASSIS. TORQUE REACTION DAMPING.… | ||
| scan0100 | Goshawk-II engine mounting tests, discussing vibration reduction by adding weight. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. LL46024 132 EXPERIMENTAL REPORT. Expl. No. 634 REF: HS7/LGL1.10.23. To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ENGINE MOUNTING. We attach herewith… | ||
| scan0101 | Test log comparing various engine mounting configurations and their effects on vibrations. | ||
| View original record | Hs5/LG11.10.23 -2- 153 11.10.23. TEST NO. | ENGINE MOUNTING. | VIBRATIONS. ---|---|--- 13 | Engine supported on centre of crankshaft - weight changed from position underneath engine to side position.… | ||
| scan0102 | New frame brackets and improvements to the Goshawk chassis. | ||
| View original record | X4604 134 To BY. from R. HS. c. to CJ. BJ. LHS. R5/M13.10.23. RE. GOSHAWK FRAME. X.4260. X.4604. We have in hand new frame brackets for the Goshawk chassis, for carrying the body. The present frame… | ||
| scan0103 | Engine mounting and vibration damping tests for the 2-Goshawk-11 car. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. X46074 136 EXPERIMENTAL REPORT. Expl. No. [REDACTED] REF: [REDACTED]/M.S./2019.10.23. To R. from Hs. c. to CJ. c. to E. c. to Da. c. to EY. ENGINE MOUNTING.… | ||
| scan0104 | Differences in engine mounting between the Marmon and Goshawk engines. | ||
| View original record | X.4604 MARMON & GOSHAWK 137 To Hs. from R. c. to CJ. ENGINE MOUNTING. R2/M1 6.10.23. Referring to your report Hs2/LG13.10.23., there are probably two things making the difference between the Marmon… | ||
| scan0105 | Authorizing the fitting of a Torque Reaction Damping Device to all 40/50 HP chassis demonstration cars. | ||
| View original record | X4604 139 To NP. from BJ. BJ10/H23.10.23. Copies to Wor. PN. [PN is struck through] Hs. O. [O is struck through] By Sg. [Sg is struck through] Torque Reaction Damping Device - 40/50 H.P. Chassis.… | ||
| scan0106 | Correcting an incorrectly given chassis number for a 40/50 Chassis. | ||
| View original record | X4604 140 BJ. c. Hs. c. DY. c. Wor. EP3/H23.10.23. Torque Reaction Damping Device - 40/50 Chassis. With reference to our memo EP19/H22.10.23, we regret that the chassis number was incorrectly given as… | ||
| scan0107 | Experiments concerning low-speed torque reaction vibrations in 40/50 HP and 20 HP chassis. | ||
| View original record | X4604 142 Expl: Dept: Messrs. Rolls-Royce Ltd., Nightingale Rd., Derby, England. Hs2/LG25.10.23 Messrs.Rolls-Royce (America)Inc., Springfield, Mass., U.S.A. OY. from Hs. TORQUE REACTION VIBRATIONS. We… | ||
| scan0108 | The standardisation of parts for 20 HP and 40/50 HP Cars. | ||
| View original record | 143 contd:- -2- We are standardising them immediately both on the 20 HP. and 40/50 HP. Cars. Yours sincerely, | ||
| scan0109 | The 20-HP suspension engine damping device, proposing alterations to drawing E53049 to achieve a more effective damping range. | ||
| View original record | BY: [strikethrough] c. Hs. re. 20-HP Suspension. Engine Damping Device. We have now had considerable experience with the above, and we find that the most effective damping range is to set them between… | ||
| scan0110 | 20 HP engine's disc crankshaft, detailing test bench results, vibration analysis, and weight comparison. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H., D. X4604 147 Expl. No. 4221 634 4604 REF: Hs2/LG20 2 24. EXPERIMENTAL REPORT. To R. from Hs. c. to CJ. RG. c. to E. BY. c. to DA. PN. DISC CRANKSHAFT FOR 20 HP.… | ||
| scan0111 | Report page concluding that a damped spring drive should be fitted to overcome an issue at full power. | ||
| View original record | contd:- -2- 145 under full power at all speeds. We should expect the effect of this to be overcome by fitting a damped spring drive. Hs. | ||
| scan0112 | Overrun vibration, the solution of a thicker shaft, and the effects of a heavier flywheel. | ||
| View original record | To E. from R. c. to CJ. RG. DA. HS. BY. X4604 R6/M29.2.24. 150 OVERRUN VIBRATION. X.4604 X.9550 X.9040 The thicker shaft looks good and should push the period well up out of the way if what we think… | ||
| scan0113 | Tests for axle torsional movement and vibration under torque control. | ||
| View original record | R.R. 493A (20H) (D.A. 652 20-3-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: Hs/Rm/LG11.6.24. 181 FURTHER TESTS WITH TORQUE CONTROL. To determine the torsional movement of the axle when jaggering in… | ||
| scan0114 | Vibrations in a 20 HP disc crankshaft compared to a standard crankshaft. | ||
| View original record | R.R. 496A (20H) (D.A. 652 20-3-24) J.H.D. Handwritten: X4604 EXPERIMENTAL REPORT. Expl. No. REF: Hs2/LG26.9.24. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to EP. Handwritten: X4221… | ||
| scan0115 | Technical query regarding high-speed engine vibration on Goshawk 11 chassis 5-G-11. | ||
| View original record | To Hs. from R. c. to CJ. x4604 /53 RE. GOSHAWK 11. VIBRATION. R5/M6.10.24. X.4604 X.634 When driving 5-G-11 to the Fen Country there seemed to be a number of occasions such as on the down grade dips… | ||
| scan0116 | Testing a disc crankshaft for a 20 HP engine, detailing performance and vibration characteristics. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. 4221 634 4604 REF: Hs2/L320.2.24. To R. from Hs. c. to CJ. RG. c. to E. BY. c. to DA. PN. DISC CRANKSHAFT FOR 20 HP. We have… | ||
| scan0117 | Continued memo suggesting the use of a damped spring drive to overcome an issue at full power. | ||
| View original record | contd:- -2- under full power at all speeds. We should expect the effect of this to be overcome by fitting a damped spring drive. Hs. | ||
| scan0118 | Instructions with a diagram for a rig modification to simultaneously test two axles. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: M Barrington Order No. Customer's No.: X1156 It is possible to test two axles simultaneously by a slight modification of the present rig. One end would "overrun"… | ||
| scan0119 | Quotation from Edward C. Herbert Ltd for an Olsen's 100,000 lbs capacity testing machine. | ||
| View original record | TELEPHONE, 9202. CENTRAL. TELEGRAMS: "TESTED, MANCHESTER." CODES: A B C 5TH EDITION AND OWN. ON ADMIRALTY, WAR OFFICE & INDIA OFFICE LISTS. 155 EDWARD C. HERBERT, LIMITED, ENGINEERS & MACHINE TOOL… | ||
| scan0120 | List of various testing machines with their specifications and prices. | ||
| View original record | (2) 159 Messrs. Rolls-Royce, Ltd. 16/10/11. (2) Olsen's latest improved Torsion Testing Machine #2. of 230,000 inch lbs. capacity as per page 19, part H, arranged with all improvements, right hand… | ||
| scan0121 | Letter from Edward G. Herbert, Limited, quoting prices and providing details for various testing machines. | ||
| View original record | (3) 160 Messrs. Rolls-Royce Ld. 16/10/11. with additional mechanism so that springs may be vibrated under any load up to 6,000 lbs. of amount up to 6 inches and at rate of 60 vibrations per minute.… | ||
| scan0122 | Unit testing, proposing a new engine testing scheme using dynamos and discussing gearbox testing. | ||
| View original record | Mr. Johnson. UNIT TESTING. Engine Testing. It is proposed to obtain dynamos having rotatably mounted field magnets and to mount these ourselves with tackle which will enable us to measure the torque… | ||
| scan0123 | Challenges and proposed improvements for a gearbox testing rig to better isolate and observe noises. | ||
| View original record | -2- 157 success with this yet; the rig is all right for just running in the boxes, but in order to observe their troubles it is necessary to take them off and put them on the old rig owing to the… | ||
| scan0124 | Suggested modifications to an axle testing rig. | ||
| View original record | -3- following modifications should be considered:- (1) Hand operated lever to differential clutch so that the load can be imposed gradually and varied. (2) The boxes to be mounted further apart from… | ||
| scan0125 | Unit testing procedures for engines and gearboxes to diagnose issues when coupled versus tested individually. | ||
| View original record | -4- General. Unit testing in this manner will probably enable us to dispense with most of our investigation of troubles from these parts at present carried out while on the chassis. At the same time… | ||
| scan0126 | From Mr. Royce suggesting the use of a worm wheel axle on the new axle test rig. | ||
| View original record | Ref. N8/B6212. Re New Axle Test Rig. TBB6/L19212. Mr Whitehead 19/2/12. Will you kindly note that Mr Royce thinks that we might perhaps with advantage employ a worm wheel axle at one end of the rig,… | ||
| scan0127 | Instructions from Mr Royce regarding modifications to the axle test rig dynamometer. | ||
| View original record | DYNAMOMETERS (Axle) Written by Mr Royce on March 7th 1912. Handed to T.C. on 11th March 1912. Mr Royce said - In order to test the over-run and forward drive more quickly, pulleys with double grooves… | ||
| scan0128 | Requesting new pulleys with two grooves for the axle testing rig. | ||
| View original record | Ref. Mr Royce's note dated 7/3/12. Re Axle Testing Rig. Mr Whitehead. 13/3/12. TBB2/L13312. Will you kindly instruct as soon as possible a set of pulleys for the present axle testing rig having two… | ||
| scan0129 | From Mr Royce regarding the specification for the coupling shaft on new engine dynamometers. | ||
| View original record | 161 X380 Re new engine dynamometers. Mr Whitehead. 23.4.12. TBB1/L23412. Will you please note that Mr Royce wishes the coupling shaft between the test engine and the dynamo to be fitted with the… | ||
| scan0130 | Departmental memo requesting an urgent order of tackle and instruments for axle strain tests. | ||
| View original record | 175 (50 H) (X 737. 18.3.12) E.P. 1493. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). 162 DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| scan0131 | Departmental memo regarding the ordering of parts and instruments for axle strain tests. | ||
| View original record | R.R. 475 (50 H) (X 737. 18.3.12) E.P 1493. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). 16s N23/B13512. DEPARTMENTAL MEMO. This column is for… | ||
| scan0132 | Departmental memo regarding axle strain tests and seeking approval to order parts. | ||
| View original record | R.R. 475 (5q H) (X 737. 18.3.12) E.P 1493. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| scan0133 | Design and requirements for an apparatus to perform axle strain tests. | ||
| View original record | 166 x 380 Re Tackle for Axle strain tests. TBB1/L6712. Mr Royce 6.7.12. With reference to your note of July 3rd in which you suggest that Mr Bailey should make a rough drawing of an arrangement for… | ||
| scan0134 | Proposal for acquiring general testing tackle, including a hydraulic ram, for applying loads accurately. | ||
| View original record | 167 -2- future axles tests but as a matter of fact they are general testing tackle which will at all times be most useful for the various odd tests that have to be made at frequent intervals. At… | ||
| scan0135 | Axle testing and the cost-effectiveness of using ballast bags instead of weights for the experimental shop. | ||
| View original record | 168 -4- such as you suggest Mr Bailey should scheme, will get over any difficulties with regard to further tests for axles, yet I think these other parts (which should form a portion of the general… | ||
| scan0136 | To Mr Royce regarding the implementation of a card system for old experimental parts. | ||
| View original record | 169 X380 Re care of old experimental parts. TBB8/L10712. Mr Royce 11.7.12. With reference to the above matter, Mr Platford reports that he has instituted a card system and same has been working for… | ||
| scan0137 | Requesting a copy of a parts list for testing tackle to get it sanctioned by Mr Royce. | ||
| View original record | 170 Re Testing Tackle. Mr Platford 23.7.12. TEB8/L23712. With reference to your attached sheet, your original memorandum which enumerated the various parts required is I believe in the hands of Mr… | ||
| scan0138 | Magazine clipping describing the Crossley Works' Test Body used for chassis testing. | ||
| View original record | Handwritten note: F.H. Royce. Have for many years used a box for test. Rags of Jute from turnings; machines was up scrap and dead weight. with the fundamental usefulness. Levassor. Printed text: THE… | ||
| scan0139 | Requesting the rigging of a new, large resistance tank for the Experimental Test engine. | ||
| View original record | 171 Re Resistance Tanks for Experimental Test engine. Mr Nadin 19-11-12 TBB8/L191112 Will you please put in hand without further delay the necessary work for rigging up the big resistance tank which… | ||
| scan0140 | Instruction to order various precision measuring tools from a Starretts list. | ||
| View original record | R.R. 238 (24 B) (LL. 255. 10.6.12) E.P. 1997. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Barrington [Stamped: M.M. adm'd 17.12.12] Order No. Customer's No. Please order the following tools as taken… | ||
| scan0141 | Requesting an order for various tools from a Starrett's catalogue for the Experimental Department. | ||
| View original record | 173 X380 Re Experimental Dept. Tools. Mr Nadin 12-12-12 TBB7/L121212 Will you please place on order the following tools for use in the Experimental Dept., all from Starrett's catalogue. 4 micrometer… | ||
| scan0142 | Merits of different metal fatigue and impact testing methods. | ||
| View original record | C O P Y. 174 X380 R22/P 11.10.13. To Na. from R. Copy to J. " " Wor. I am of the opinion that Prof. Arnold is sound on the question of fatigue testing and that this system of bending the piece in the… | ||
| scan0143 | Instruction sheet with a sketch and dimensions for manufacturing one valve for the Experimental Shop. | ||
| View original record | R.R. 663 (12 B.) (X.X. 830. 27/5/13.) Bm. 72.1400. x380 176 ROLLS-ROYCE LIMITED. INSTRUCTIONS. Mr. Wormald To Mr. Vale 24-10-1913 Order No. 44300 Customer's No. TEST .350 +10 .050 +10 .500 +10 45°… | ||
| scan0144 | Internal request to borrow a direct current motor for a fortnight whilst a generator undergoes alterations. | ||
| View original record | R.R. 657. (100H) (VV 88. 19.11.13) E.P. 5408. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. 176 TELEPHONES: 47B (FOUR LINES). F.R. Names and Indicating letter. Initial of… | ||
| scan0145 | Responding to an inquiry about the availability of a direct current motor for the crankshaft analysing rig. | ||
| View original record | ✓c 177 Wor/SM10/L301213. +380 Na. 30-12-13. In reply to your memo Na7/B231213 asking whether you may make use of the direct current Motor which was purchased for the crankshaft analysing rig, Mr Hives… | ||
| scan0146 | Invoice from Curry's for a special fork made for experimental tests. | ||
| View original record | To Roy. from Hs. X380 181 Hs4/LG1.11.24. We attach herewith an invoice from - Curry's, 54 East Street, Derby. This special fork was made for experimental tests. Will you please send on an order. Hs.… | ||
| scan0147 | To Mr. Peskett requesting the setup of tackle to repeat a bumper test experiment. | ||
| View original record | 182 Mr. Peskett from Hs/Rm. 1380 E1 Hs/RmL/LG13.9.26. X3447 You will remember that sometime ago we drove the drums in the bumper test house by means of a 20 HP. engine and a series of belts and… | ||
| scan0148 | Engine horsepower test report investigating the effect of compression leakage on performance. | ||
| View original record | Handwritten notes: 2147 156 (top right corner), X990 (left margin) From Exp. Dept. Copies for: J. R. E. Na. Wor/EH3/L19515. May 19th. 1915. Engine Horse Power Test. Why different cars vary in horse… | ||
| scan0149 | Analysis of piston ring fitting and its effects on engine horsepower, gas leakage, and friction. | ||
| View original record | 187 2. Wor/EH3/L19515. proportion to the speed of the engine and that a leakage that would appear tremendous when the engine was turned by hand would not make any appreciable difference in horse power… | ||
| scan0150 | Typed note regarding power loss from leakage past rings being inversely proportional to engine speed. | ||
| View original record | Wor/EH3/L19515. 3. 156 rings, and that the loss of power caused by leakage would always be inversely in proportion to the speed. E.H. [Watermark: HYDEVACHOKPA 1809 DICKINSON BOND] | ||
| scan0151 | Article from 'The Motor Trader' presenting comparative chassis efficiency data from a report by Dr. Riedler. | ||
| View original record | Handwritten text: The Motor Trader. August 20th 1910 13489 464 Printed text: Comparative Chassis Efficiency Data. A volume of some nine reports, comprising 330 pages and 227 illustrations, has been… | ||
| scan0152 | Request for a horsepower speed curve for the standard car engine, urgently required by the Ministry of Munitions. | ||
| View original record | R.R. 235 B (200 T) (S.C. 536. 15-2-16) G. 1547. To EFC. from BY/ST. BY/ST8/DB27217. 195 February 27th, 1917. X3056 RE STANDARD CAR ENGINE. Will you please prepare a horse power speed curve taken from… | ||
| scan0153 | Letter from Rolls-Royce of America requesting engine performance data from the UK parent company. | ||
| View original record | Oy2-G291020. October 29th.1920. Mr.Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Mr. Hives. Dear Sir, Re: Power of Car Engine. We should like to receive from Mr.… | ||
| scan0154 | Power of a car engine, confirming that the necessary information was taken by Mr. Hives to the U.S.A. | ||
| View original record | X.3056 R.F.C. To EWT. from Hs/TMW. Hs/TMW2/LG20.12.20. X.3056 RE. POWER OF CAR ENGINE. With reference to your EWT/HJC5/G18.12.20 and to Mr. Olley's memo. OY2/G29.10.20. We find that Mr. Hives dealt… | ||
| scan0155 | Horse power curves for the standard 40/50 engine. | ||
| View original record | X3056 To R. from Hs. c.c. to CJ. c.c. to BN. c.c. to E. c.c. to Ds. c.c. to BY. c.c. to EP. c.c. to FN. c.c. to EWT. for R.R.Inc. Hs2/LCS.5.21. X3056 HORSE POWER CURVES OF STANDARD 40/50 ENGINE.… | ||
| scan0156 | Instruction sheet detailing a horsepower comparison test for a 40/50 engine with different induction pipes. | ||
| View original record | R.R. 26 10M Bks.) (SE 591 13-3-18). M.P. 189358 X3056 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr. Hives 18-5-1921 Order No. Customer's No. HPs of 40/50 engines, high comp, 2" & 1 3/4" Induction Pipes… | ||
| scan0157 | Letter from the American branch to the UK branch questioning a discrepancy in engine power curves. | ||
| View original record | X3056 X451 Oy1 - G 4821 August 4, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Mr. Hives. Dear Sir:- Re: Power Curves X451 / X 3056 We wish to thank Mr.… | ||
| scan0158 | Clarifying the German horsepower equivalents for the 20-HP and 40/50 models. | ||
| View original record | WOF. Hs. BY. Lr. EF. EF. X3056 D/Sn10/GH4.9.24. X3056 Re German Horse Power For Our 20-HP. and 40/50. X1033 X4134 Please note Export dept. advise us that our German Agents state the correct… | ||
| scan0159 | Engine vibrations without a slipper wheel for a 48-PK car with a 40/50 engine. | ||
| View original record | X3056 17.12.24. 48-PK CAR. STANDARD 40/50 ENGINE. Engine vibrations without slipper wheel. X3056 / X634 Top direct. M.P.H. M.P.H. 29 to 31 Retard vibrations. 35 " 36 rough 60 to 50 42 " 43 very smooth… | ||
| scan0160 | 20 HP engine's exhaust cutout, comparing acceleration and max speed with the cutout open and closed. | ||
| View original record | 20 HP. EXHAUST CUTOUT REPORT. HP. Curve comparison - Cutout open and closed, taken on Test Bed, is attached. Road Tests. (The figures given below are the averages of several tests, which showed very… | ||
| scan0161 | Hill climbing performance tests, detailing speedometer readings and time taken over a set distance. | ||
| View original record | contd: -2- (3) HILL CLIMBING. About 3/4 mile was marked off at 5 points where speedometer readings were taken and time taken to complete the whole distance. Points. | Cut-out open m.p.h. | Cut-out… | ||
| scan0162 | Data table from dynamometer tests on the Goshawk I engine, comparing theoretical and actual values. | ||
| View original record | GOSHAWK 1. DYNAMOMETER TESTS. | | Dyna. and drums. road wheel revs. | | Dynamometer Tachometer revs. | | | | ROAD SPEEDS. | | | | Engine revs. | Theoretical revs. | Actual revs. | Theoretical revs. |… | ||
| scan0163 | Goshawk I dynamometer test results showing road speeds and various revolution readings. | ||
| View original record | X4134 ROAD SPEEDS. 22-2-21 Dyna. drum and road wheel revs. Dynamometer revs. Tachometer revs. Engine revs. | Theoretical revs. | Actual revs. | Theoretical revs. | Actual revs. | Lbs. | HP. |… | ||
| scan0164 | Instruction sheet with a table of power curve data. | ||
| View original record | X4134 R.R. 26 (10M Bks) (S.E. 591 13-3-18). M.P. 189358 ROLLS-ROYCE LIMITED. INSTRUCTIONS. Order No. T.W. Hives Customer's No. 4/3/12 - 191 Herewith a copy of Power curves of 4. Gos. 2. RPM | Lift |… | ||
| scan0165 | Fair comparison method for the Goshawk engine and a carburetion experiment. | ||
| View original record | Hs. from E. c. to CJ. c. to BJ. c. to Wor. c. to Hy. c. to BY. X4134 E2/M16.3.22. GOSHAWK 11. X.4134. X.4219. With reference to your report hsl/LG13.3.22. comparing the engine size of Goshawk with… | ||
| scan0166 | Request for dynamometer horsepower figures and valve timing for the Goshawk 11, for comparison with other cars. | ||
| View original record | EP. from E. c. to CJ. c. to Wor. c. to Hs. √4134 O P's & HP, GOS II E2/M3.4.22. GOSHAWK 11. X.4219 X.4226. 4134 We should be very glad if you could supply us with figures giving the HP. of the Goshawk… | ||
| scan0167 | Horsepower tests for the GOSHAWK II, comparing dynamometer and unit test bed results. | ||
| View original record | Y41314 Copy for Miss Gill. Exp.Dept. E. from EP. EP9/H5.4.22. Re. GOSHAWK II. I attach herewith chart showing the actual horse power given off at the road wheels when the chassis was tested on the… | ||
| scan0168 | Suggesting comparative hill-climbing tests between the 40/50-HP and Goshawk models. | ||
| View original record | X4134 1 To Hs. from BJ. CJ2/H11.5.22. Comparative Tests of 40/50-H.P. and Goshawk. X4134 / X285 If it has not already been done, we suggest that it would be interesting to make a series of tests in… | ||
| scan0169 | Proposal for conducting comparative tests between the 40/50 HP and Goshawk models. | ||
| View original record | CJ. from Hs. X4134 Hs5/LG12.5.22. COMPARATIVE TESTS OF 40/50 HP. AND GOSHAWK. X.2565 (crossed out) X4134 Referring to your CJ2/H11.5.22. We propose that the simplest basis to compare the Goshawk with… | ||
| scan0170 | Cancelling further comparative tests for the 40/50-HP and Goshawk engines. | ||
| View original record | X4134 1 To Hs. from BJ. BJ3/H16.5.22. Comparative Tests of 40/50-H.P. and Goshawk. Hs5/LG12.5.22. Thank you for your memo. We think now that you have obtained such satisfactory information it is… | ||
| scan0171 | Customer criticisms about the Goshawk car's low-speed power and comparing its performance to the 40/50 model. | ||
| View original record | R.R. 199 (500 H) (SD. 296. 15.9.17) M.P. 176549. X4134 (R) ¢ E. from Hs. Hsl/LG17.5.22. COMPARISON OF GOSHAWK. X2565 X4134 We are always getting criticisms as regards power at low speeds on… | ||
| scan0172 | Responding to a suggestion to compare the Goshawk engine on the basis of capacity per ton mile. | ||
| View original record | E. from Hs. X4134 Hs5/LG18.5.22. COMPARISON OF GOSHAWK. Y4134 x2585 I have just come across your memo. E2/M16.3.22 suggesting that the Goshawk should be compared on the basis of engine capacity per… | ||
| scan0173 | Goshawk 11 engine's torque curve and hill climbing performance. | ||
| View original record | X4134 To Hs. from E. GOSHAWK 11. PERFORMANCE X.4134 In reply to your Hsl/LG17.5.22., we would refer you to our memo. to Mr. Royce El/M8.4.22 - (copy to yourself) and sheet of HP. and MEP. curves -… | ||
| scan0174 | Test report on the performance of the Goshawk 11 car at Brooklands, detailing speed and acceleration after fixing a pre-ignition problem. | ||
| View original record | C O P Y. To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. c. to EP. Hs1/LG18.8.22. RE. GOSHAWK 11. - SPEED. X.788. On my way to London I called at Brooklands with 4-Goshawk-11. On the track we… | ||
| scan0175 | Excessive oil consumption and smokey exhaust in Goshawk 11 engines, with a proposed solution of beveling the piston rings. | ||
| View original record | X4134 To R. from Hs. c. to CJ. c. to E. c. to Ds. c. to EY. Hs3/LGS.9.10.32. GOSHAWK 11. OILING. X4134 X4238 X4224. There have been one or two cases of excessive oil consumption on Goshawk engines.… | ||
| scan0176 | Continued discussion on the adoption of a scraper ring with a bevel for engine efficiency. | ||
| View original record | contd:- -2- we adopt the scraper ring with a bevel. It would appear better to obtain the maximum efficiency from the scraper ring rather than to have to resort to tightly fitting bearings, oil baffle… | ||
| scan0177 | Particulars of Goshawk X4134, including chassis weight, engine capacity, horsepower curve, and consumption figures. | ||
| View original record | Sft. from Hs. X4134 Hs9/LG6.12.22. PARTICULARS OF GOSHAWK. X4538 [strikethrough] X4134 Weight - chassis complete - 4 tyres - battery - spare wheel carrier - step irons - instrument board - full of… | ||
| scan0178 | Horsepower curve data for an engine originally fitted to chassis 2-G-11, taken on its removal with the silencer connected. | ||
| View original record | Y4134 Hs. from TMW. 28.3.23. H.P. Curve of engine originally fitted to chassis 2-G-11, taken on its removal. Silencer connected. R.P.M. H.P. H.P. 500 10.5 10.6 750 16.6 16.2 1000 21.8 21.4 1250 26.5… | ||
| scan0179 | Dynamometer test results for a Phantom II vehicle with specific modifications. | ||
| View original record | AR 26 (10H BKS) (SK 165 5-10-22) MP 260796 X4134 ROLLS-ROYCE LTD. INSTRUCTIONS To: C. W. Hives Order No. Customer's No. 1 P of G II taken on road wheel dynamometer. .100" higher crown than std,… | ||
| scan0180 | Camshaft tests for a 20 HP engine, detailing results from both test bench and road tests. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. 4134 Expl. No. 4229 REF: Hs4/LG3.10.23. CAMSHAFT TESTS ON 20 HP. The modified camshafts were put in hand as a result of tests carried… | ||
| scan0181 | The top speed of the 20 HP model to assess its potential as a fast car competitor to Bentley. | ||
| View original record | X413H To Hs. from BJ. BJ12/H8.1.23. 20 H.P. Please let me know what is the highest speed we have recorded with the 20 h.p., either as a chassis or with touring body. I only require this information… | ||
| scan0182 | Maximum speed of the 20 HP car and the potential for a sporting version, in comparison to Bentley. | ||
| View original record | X4134 BJ. from Hs. Hs3/LG9.1.23. RE. SPEED OF 20 HP. CAR. X788 X4134 We attach copy of report ref. Hs1/LG18.8.22 of the maximum speed that has been recorded on the 20 HP. This was taken on… | ||
| scan0183 | Performance data sheet for the Coshawk 11, detailing average production results from January 1923. | ||
| View original record | X4134 27.3.23. GOSHAWK 11. M.E.P's. H.P. figures taken from average production results Jan.1923. | R.P.M. | Clutch B.H.P. | Road wheel H.P. | Clutch M.E.P. | Road wheel M.E.P. | |---|---|---|---|---|… | ||
| scan0184 | The performance comparison and mechanical faults of a 20 HP exhaust cutout. | ||
| View original record | Y4134 Hs. from TMW. Hs/TMW1/LG18.4.23. 20 HP. EXHAUST CUTOUT. X4269 ~~Y4134~~ Attached will be found a report of the above fitting showing a comparison of performance having the cutout open and… | ||
| scan0185 | Modifying a camshaft to improve engine power at low speeds and reduce roar. | ||
| View original record | R.R. 403 (40 H) (SL 42 12-7-23). J.H., D. X4134 EXPERIMENTAL REPORT. COPIES TO: R.C.J. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. X.4134 X.4229. REF. Hs4/LG3.10.23 OBJECT OF TEST. To improve power at… | ||
| scan0186 | The performance difference of a 20 HP car using various brands of petrol. | ||
| View original record | R.R. 493 (40 H) (SL 42 12-7-23). J.H., D. V4T34 EXPERIMENTAL REPORT. COPIES TO: R.C.J. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. X.4134 X.796 X.1555 REF. Hs2/LG26.10.23. OBJECT OF TEST. To observe… | ||
| scan0187 | Comparing the performance of three 20 HP cars using various brands of petrol. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. Expl. No. 1555 796 REF: HSB/LG25.10.23. EXPERIMENTAL REPORT. COMPARISON OF PERFORMANCE ON 20 HP CARS - 4-G-11 - 3-G-11 AND 79-AO (10,000 MILES TEST CAR) -… | ||
| scan0188 | Comparing the performance of different grades of petrol during low-speed, full-throttle conditions. | ||
| View original record | R.R. 403A (40 H) (EL 42 12-7-23). J.H., D. Expl. No. 796 1555 REF: Hs5/LG25.10.23. EXPERIMENTAL REPORT. COMPARATIVE TESTS WITH DIFFERENT GRADES OF PETROL TO DETERMINE ANY DIFFERENCE IN 'LOADING UP' OR… | ||
| scan0189 | Proposing modifications to the Goshawk engine to improve efficiency, power, and acceleration. | ||
| View original record | To HS. from R. c. to CJ. BJ. RG. E. DA. BY. PN. H. X4134 R1/M27.6.24. RE. GOSHAWK ENGINE. INCREASE IN EFFICIENCY ETC. X.1725 X.4573 X.4134. We are desirous of getting greater acceleration and power,… | ||
| scan0190 | Performance graph for a 20-HP engine showing heat flow, horsepower, and fuel consumption against RPM. | ||
| View original record | 20-HP HT. FLOW TO JACKET WATER 29-9-24 HT FLOW AS % OF INITIAL FUEL ENERGY 40 30 20 %AGE HT. FLOW TO WATER HP. AT ROAD WHEELS PET. CONSUMPTION HT FLOW TO JACKETS B.T.U.s p MIN. 3000 2000 1000 00… | ||
| scan0191 | Heat flow to the jacket water of a Goshawk engine. | ||
| View original record | R.R. 493A (20H) (D.A. 652 20-3-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. FCH84 REF: Hs/ACL/LG13.10.24. not sent out HEAT FLOW TO JACKET WATER ON GOSHAWK. The following tests were carried out on the… | ||
| scan0192 | Provision of 20-HP power curves based on recent chassis dynamometer tests. | ||
| View original record | Hs/Rm. X.4134 Mx/McM5/MMC4.3.25. Re: 20-HP Power Curves. In reply to your Hs/Rm1/LG26.2.25, we attach hereto curve plotted from the average powers of the last 20 chassis on dyno test. We will forward… | ||
| scan0193 | Dynamometer graph plotting Horsepower against RPM for a 20HP chassis. | ||
| View original record | Hs/Rm. Average of last 50 chassis - Dyno - 20HP. H.P. 50 40 30 20 10 0 R.P.M 0 500 1000 1500 2000 2500 3000 3/3/25 HR | ||
| scan0194 | Hand-drawn graph plotting Horsepower (HP) against Revolutions Per Minute (RPM) for an 'Average 10 Engine 20HP Unit'. | ||
| View original record | Average 10 Engine 20HP Unit HP 60 50 40 30 20 10 0 R.P.M. 500 1000 1500 2000 2500 3000 [Signature] B/3/W | ||
| scan0195 | Request for dynamometer and unit test power curves for the 20 HP engine following a new camshaft fitment. | ||
| View original record | Mr. MacMillan from Hs/Rm. X.4134 Hs/Rml/LG26.2.25. We thank you for your memo. of the 24th.inst. with regard to 40/50 and 20 HP. chassis weights. We are anxious to obtain average dynamometer and unit… | ||
| scan0196 | Attached power curve for the 20-HP engine, based on the average of 10 units from a test bed. | ||
| View original record | X. 4134 Hs/Rm. Mx/McM1/MMC13.3.25. Re: 20-HP Power Curve. Hs/Rm1/LG26.2.25. Mx/McM5/MMC4.3.25. Further to above we attach hereto curve plotted from average of 10 engines on unit test bed.. Mx/McM. | ||
| scan0197 | Experiment report on increasing the power output of a 20 HP engine by modifying the carburetter and cylinder block passage. | ||
| View original record | Hs/ACL/LG17.2.26. 20 HP. ENGINE - POWER WITH LARGER CARBURETTER THROTTLE AND 1.5" DIAMETER PASSAGE IN CYL. BLOCK. -------------------- The following experiments were carried out, as requested, to… | ||
| scan0198 | Engine power curve tests comparing standard and modified carburetter and pipe configurations. | ||
| View original record | contd :- -2- valve, dashpot, and spring were retained. The power curves given below are the average of several tests. The standard silencing arrangements were used. | R.P.M. | B.HP. Std. pipe and… | ||
| scan0199 | Testing a large throat carburetter, focusing on low-speed performance and power output. | ||
| View original record | contd :- -3- employed for each test. With regard to the metering of the large throat carb., it was found to be bad at low depressions and possessing a very weak region just before the high speed jet… | ||
| scan0200 | Report page comparing the performance of a standard carburetter with a diffuser jet carburetter, including a performance graph. | ||
| View original record | contd :- -4- This simple test however is sufficient to show that with the present engine and type of carburetter used there does not seem much possibility of obtaining any appreciable power increase… | ||
| scan0201 | Report page detailing experiments on carburettors, comparing a diffuser and a light air valve against standard components. | ||
| View original record | contd :- -5- show the relationship between specific consumption and mean effective pressure with varying mixture strengths for each carb. at 750 r.p.m. It will be seen that there is a very slight gain… | ||
| scan0202 | Carburettor and engine modifications to investigate power loss in a 20 HP engine. | ||
| View original record | contd :- -6- The metal thickness between the cylinder bores and the induction passage with the large diameter is .075" and makes casting more difficult. CARBURETTER THROAT SIZE. By increasing the… | ||