Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Request for complete details of the Imco Autopulse Magnetic Fuel Pump. | ||
| View original record | X.3800 Hsll/LG. 20th. Aug. 1925. The Ireland & Matthews Mfg. Co., 1500 Beard Avenue, Detroit, Michigan, U.S.A. Dear Sirs, Will you please send us complete details of your Imco Autopulse Magnetic Fuel… | ||
| Scan002 | Letter from Ireland & Matthews Manufacturing Co. regarding their 'Autopulse' magnetic fuel pump. | ||
| View original record | 43800 IRELAND & MATTHEWS MANUFACTURING CO. 1500 Beard Avenue Detroit I M C O Autopulse August 31, 1925. Hs Rolls-Royce, Ltd., Nightingale Road, Derby, - London, England. Gentlemen;- We have your… | ||
| Scan003 | Informational leaflet detailing twelve reasons for adopting the AUTOPULSE fuel pump, with a list of boat and engine builders who use it. | ||
| View original record | Twelve Reasons Why the AUTOPULSE Has Been Adopted As Standard Equipment by the Following Boat and Engine Builders: 1. Maintains a sufficient supply of gasoline at the carburetor under any condition of… | ||
| Scan004 | From EFC to Hs. suggesting a test for the Autopulse. | ||
| View original record | X3800 Hs. 23.9.25. It appears to me that it would be worth while to give the Autopulse a test. EFC. | ||
| Scan005 | Cover page for the Autopulse System, a fuel supply solution. | ||
| View original record | Autopulse System The Solution of the Fuel Supply Problem IMCO AUTO PULSE Autopulse attached to the float chamber of an automobile carburetor Manufactured by Ireland & Matthews Manufacturing Co.… | ||
| Scan006 | Descriptive booklet for the Autopulse Magnetic Fuel Pump, detailing its features, installation, and operation. | ||
| View original record | SUMMARY OF SUBJECTS Page General Description ....................................... 3 Important Features ...................................... 3 Installation… | ||
| Scan007 | Installation instructions and operational details for the AUTOPULSE fuel pump unit. | ||
| View original record | (19) In "MULTIPLE" INSTALLATIONS, each unit functions entirely independent of the others; but each automatically delivers its proportion of the fuel at all times. (20) "SERIES" INSTALLATIONS of the… | ||
| Scan008 | Installation, operation tests, service, and capacity information for the Autopulse electric fuel pump. | ||
| View original record | For TRIPLEX and QUADRUPLEX installations, two 1/8" tubes or one 3/8" tube is desirable. For the QUINTETTE, or SEXTETTE, two 3/8" tubes for suction and one 1/8" tube or two 1/8" tubes for delivery. All… | ||
| Scan009 | Detailed explanation of the AUTOPULSE fuel pump, its operation, and specifications. | ||
| View original record | Page 8 slightly with the increase in voltage. Two-thirds of the rated voltage will deliver 85% capacity, and one-third of the rated voltage will produce operation and supply sufficient fuel for a good… | ||
| Scan010 | Descriptive document on the operation, installation, and application of the Autopulse electric fuel pump. | ||
| View original record | Page 10: applied, the tungsten contact at (11) is held in contact with another tungsten contact (not shown in drawing, but can be seen in the view having the cover removed) by the delivery spring… | ||
| Scan011 | Advertisement leaflet detailing twelve reasons why the Autopulse system solves gas engine fuel supply issues. | ||
| View original record | Plant of the Ireland & Matthews Company Twelve Reasons Why the Autopulse Solves Gas Engine Fuel Supply 1. Maintains a sufficient supply of gasoline at the carburetor under any condition of grade,… | ||
| Scan012 | From Mr. Olley to Mr. Nadin regarding the ordering of two Autopulse instruments. | ||
| View original record | X3800 Oy3-E-31326 March 13, 1928 To: Mr. Nadin From: Mr. Olley With reference to the enclosed circular we are ordering two of these Autopulse instruments for you to take to England. Will you kindly… | ||
| Scan013 | The requirement for a test rig for petrol pumps on aero engines. | ||
| View original record | To Hy. from Hs. X3800 Hsl/LG18.3.26. PETROL PUMPS. It will be necessary for the Works to have some arrangement for testing petrol pumps on some sort of test rig before they are fitted to engines.… | ||
| Scan014 | Technical memo describing the function of an Auto-Pulse electro-magnetic petrol pump. | ||
| View original record | X3800 To R. from EFC. c. to - BJ. Wor. Ry. Rg. Oy. EP. EFC/T13.7.26. AUTO-PULSE ELECTRO-MAGNETIC PETROL PUMP. A single and a duplex unit of the Auto-Pulse petrol pump were brought over from U.S.A. by… | ||
| Scan015 | Laboratory tests of a petrol delivery instrument, detailing its performance and suitability for use in a car. | ||
| View original record | Contd. -2- EFC/T13.7.26. We have made laboratory tests of the single unit with two different suction heads of 46" and 22" respectively of petrol. For each suction head we have taken the head-delivery… | ||
| Scan016 | Continuation page of a note regarding an objection to work on a car. | ||
| View original record | Contd. -3- EFC1/T13.7.26. sufficient to be considered an objection when at work on the car. EFC. | ||
| Scan017 | Performance graph of an 'Autopulse' electric petrol pump showing delivery rate versus head at various operating voltages and suction heads. | ||
| View original record | Note. Voltage variation during test about .25 volt. APPROXIMATE DELIVERY OF "AUTOPULSE" ELECTRIC PETROL- PUMP w.r.t. VARYING DELIVERY HEAD AND APPLIED OPERATING VOLTAGE AND FOR TWO SUCTION HEADS ———… | ||
| Scan018 | Rear of a document with a Print Room stamp from the Derby facility. | ||
| View original record | ROLLS-ROYCE LIMITED, PRINT ROOM 13 JUL 1928 DERBY | ||
| Scan019 | Letter from the American branch to Derby discussing the Autopulse Fuel Pump's performance and installation. | ||
| View original record | X3800 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy1-E-72826 July 28th, 1926. Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. (Copy for the attention of E.F.C.) Dear Hives: Re Autopulse Fuel… | ||
| Scan020 | Page 2 of a letter discussing the uses of a device and recommending more thorough testing. | ||
| View original record | Oy1-E-72826 -2- July 28, 1926 The principle use of the device so far is in motor boats where pressure-feed is dangerous, and vacuum-feed impossible because of full-throttle running. It is also being… | ||
| Scan021 | Test report on the 'IMCO' Autopulse fuel pump's performance on chassis 9-EX. | ||
| View original record | To R. from Hs/AJL. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. T3800 Hs/AJL1/LG13.9.26. 'IMCO' AUTOPULSE FUEL PUMP. V3579 This pump has been fitted to chassis 9-EX and has run 835 miles. It… | ||
| Scan022 | The operational issues of an Autopulse unit, detailing its inconsistent performance and noise levels. | ||
| View original record | contd :- -2- Autopulse unit is expected to control the amount of petrol delivered to the float chamber, this is not sufficiently sensitive to ensure a constant speed. Under these con-ditions its… | ||
| Scan023 | Request for views on the 'AUTO-PULSE' fuel system, quoting a discussion at a Works Conference. | ||
| View original record | S/W Hs. X3800 C12/C18.11.26. Re 'AUTO-PULSE' FUEL. ------ Would you kindly let me have your views on the above fuel. Mr. Nutt writes me as follows:- "This matter was discussed again at our Works… | ||
| Scan024 | Cover note attaching a report detailing objections to the Autopulse Fuel Pump. | ||
| View original record | To C. from Hs. X3800 Hs3/LG22.11.26½ RE. AUTOPULSE FUEL PUMP. Y3579 Referring to C12/C18.11.26. We attach herewith copy of our report in connection with the above pump. We think this explains fully… | ||
| Scan025 | The testing and performance issues of an 'IMCO' Autopulse fuel pump fitted to chassis 9-EX. | ||
| View original record | COPY. Y3800 To R. from Hs/AJL. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. Hs/AJL1/LG13.9.26. 'IMCO' AUTOPULSE FUEL PUMP. This pump has been fitted to chassis 9-EX and has run 835 miles. It… | ||
| Scan026 | Letter from Rolls-Royce of America discussing test results and issues with the Imco Autopulse fuel pump. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X3800 Oy3-E-111326 November 13, 1926. Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. Re Imco Autopulse Dear Mr. Hives: We have your reports on… | ||
| Scan027 | Page two of a letter discussing the troublesome nature of the Phantom float feed system and requesting tips for its operation. | ||
| View original record | Oy3-E-111326 -2- November 13, 1926 It is coming in rather generally for motor-boats, fire-engines, Delco farm-lighting installations (standard) etc. An excellent feature is the low fire risk because… | ||
| Scan028 | Letter from R.M. Papélian Limited promoting their 'Autopulse' petrol system and seeking to arrange a demonstration. | ||
| View original record | Telephones: London-Gerrard 2385. Manchester-Central 7665. Telegrams: "Papélian, Piccy, London." "Papélian, Manchester." Codes: Bentley's and Private. Our Ref.: RMP/EYL. Your Ref.: Directors: R. M.… | ||
| Scan029 | Bulletin for the Autopulse Magnetic Fuel Pump, approved by the National Board of Fire Underwriters. | ||
| View original record | K3800 TECHNICAL BULLETIN OF THE AUTOPULSE MAGNETIC FUEL PUMP (Approved by the National Board of Fire Underwriters) TRADE AUTOPULSE MARK Autopulse attached to the float chamber of an automobile… | ||
| Scan030 | Promotional document and summary of subjects for the 'Autopulse' gasoline delivery system. | ||
| View original record | SUMMARY OF SUBJECTS Page General Description . . . . . . . . . . . . . . . . . . . . . . . 5 Important Features. . . . . . . . . . . . . . . . . . . . . . . . 5 Installation. . . . . . . . . . . . . .… | ||
| Scan031 | Product information sheet for the Autopulse Magnetic Fuel Pump, detailing its operation and features. | ||
| View original record | The Autopulse Magnetic Fuel Pump Front View Rear View Interior Views (actual size) of The Single Unit Autopulse Maximum Diameter 2 1/2" - Maximum Height - 3 1/2" Supplied for Battery Voltages of 6, 12… | ||
| Scan032 | Installation instructions and features for the Autopulse fuel system. | ||
| View original record | PAGE 6 make of vehicle. Does away with pipes, tanks, gauges, hand pumps and "cleans up the job." Space required is small. 12. Operates efficiently, safely and without friction in any position, even… | ||
| Scan033 | Installation, operation, and service instructions for the Autopulse electric fuel pump. | ||
| View original record | requirement is less than 5 gallons per hour, ¼” tubing is satisfactory. Both Inlet and Outlet of Single Unit AUTOPULSE—⅛” pipe standard. For DUPLEX installations rated capacity delivery, ⅜” tubing… | ||
| Scan034 | Technical bulletin detailing the specifications and performance of the 'AUTOPULSE' fuel pump system. | ||
| View original record | In the "MULTIPLE" INSTALLATION the units are bolted to manifolds by gasketed special cap screws which permit ANY UNIT TO BE REMOVED from the line and REPLACED without disturbing the other units.… | ||
| Scan035 | Technical explanation, operating principles, and ordering instructions for the AUTOPULSE electric fuel pump. | ||
| View original record | The best operation is obtained in winter weather when the need is greater. The lower the temperature, the higher the efficiency and the lower the voltage value at which operation will take place.… | ||
| Scan036 | Technical and marketing document for the Autopulse fuel sediment trap and system. | ||
| View original record | Autopulse Sediment Trap This very accessible and compact little device has three important features, when installed between the AUTOPULSE and the carburetor: First. It filters the fuel through a large… | ||
| Scan037 | Promotional leaflet for the Autopulse Gas Engine Fuel Supply from Ireland & Matthews Manufacturing Company. | ||
| View original record | Twelve Reasons Why the Autopulse Solves Gas Engine Fuel Supply 1. Maintains a sufficient supply of gasoline at the carburetor under any condition of grade, altitude, vibration or temperature. 2.… | ||
| Scan038 | Letter to Messrs. R.M. Papélian Ltd. rejecting the Auto-pulse petrol system following tests. | ||
| View original record | X3800 Hs/Rm3. Expl: Dept: 1st. Dec. 1926. Messrs. R.M.Papélian Ltd., Wolseley House, Piccadilly, London W.1. Dear Sirs, With reference to your letter of the 30th.ult. We have conducted a number of… | ||
| Scan039 | Letter from a motor parts importer offering a new 'Autopulse' device for testing on an experimental car. | ||
| View original record | Telephones: London-Gerrard 2385. Manchester-Central 7665. Telegrams: "Papélian, Piccy, London." "Papélian, Manchester." Cablegrams: "Papélian, London." Codes: Bentley's and Private. Our Ref.: RMP/EYL.… | ||
| Scan040 | Letter discussing the performance, issues, and installation of single and double Autopulse fuel feeding devices on various car models. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X3800 Oy14-E-121326 December 13th, 1926 Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. Re Autopulse Dear Hives: Re yours of September 13th. I have… | ||
| Scan041 | The piston design for the Eagle XVI engine, referencing drawings and compression ratios. | ||
| View original record | X.3802 To BY. from E. c. to CJ. RG. Hs. El/M1.10.25. EAGLE XVI. PISTON. Regarding the pistons for Eagle XVI., we sent you some time ago a transverse section through the piston on drawing LeC.2078.,… | ||
| Scan042 | Overweight sample Eagle 16 piston and proposed methods for weight reduction. | ||
| View original record | X.3802 To Hs. from E. c. to CJ. BY. E4/M21.1125. EAGLE 16. PISTON X.3802 With regard to the sample Eagle 16. piston you left with us, we have cut this up because it appeared to be rather heavier than… | ||
| Scan043 | Quality and inspection of French-made 40/50 chassis springs. | ||
| View original record | HK Hs. /3803 BY1-P27.8.23. 40/50 CHASSIS SPRINGS. I am handing RHC. today two front and two rear 40/50 springs which have been produced by Messrs. Lemoines in France. Paris have been for some time… | ||
| Scan044 | Bump testing Lemoines springs and a recommendation for their use. | ||
| View original record | +3803 BY. from Hs. Hs5/LG6.12.23. LEMOINES SPRINGS. We have tested on the Bump Test - 2 front springs supplied by Messrs. Lemoines, France. The O.S. spring broke after 18 hrs. 21 mins. The N.S. after… | ||
| Scan045 | Bump test report for Lemoines 40-50 chassis springs. | ||
| View original record | V3803 BUMP TEST OF LEMOINES SPRINGS, as supplied by Paris 40-50 CHASSIS SPRINGS CONDITIONS OF TEST. SPRINGS SHACKLED AT FRONT ENDS AND ANCHORED TO FRAME AT REAR ENDS. LOAD = 600LBS PLUS TOP HALF OF… | ||
| Scan046 | Request to urgently obtain six pairs of spring plates, three from America and three from Lemoines. | ||
| View original record | Wd. c. Hs. /3803 BY9-P18.12.23. Will you kindly obtain three pairs of spring plates from America of their standard type, also three pairs from Lemoines to suit the pairs of springs recently delivered.… | ||
| Scan047 | Poor manufacturing and potential improvements for front springs on the Phantom and 20 HP models. | ||
| View original record | To Hs. from DA. c. to CJ. c. to BY. X3803 DA4/M23.9.25. FRONT SPRINGS. X.5410 X.3803 X.8410 X.3900 Referring to the front springs for both the Phantom and the 20 HP. and to the possibility of… | ||
| Scan048 | Use, testing, and sourcing of Lemoine springs for the 20 HP 'India' chassis. | ||
| View original record | X3503 To C.J. from Hs. HS5/LG26.9.25. LEMOINE SPRINGS FOR 20 HP. CHASSIS. X3503 X5440 The springs used on the 'India' cars are a different length and design to those used on the present standard 20… | ||
| Scan049 | Testing of Lemoine springs on the 20 HP car. | ||
| View original record | X3803 Hs3/LG26.9.25. To BY. from Hs. LEMOINE SPRINGS. K5240 You will see by DA4/M23.9.25. that R. is anxious that we should test out Lemoine springs on the 20 HP. car. I spoke to Ps. from Paris about… | ||
| Scan050 | Internal request to order six pairs of front springs for the 20 HP chassis from Messrs Lemoines. | ||
| View original record | +3803 W.d. [struck through] c. BY/WEB. c. Hs. BY6/H. 28.9.25. 20 HP. FRONT SPRINGS. -------------------------- Would you kindly order six pairs of front springs for 20 HP. chassis, 650 poundage, to… | ||
| Scan051 | Modifications Mr. Royce wishes for the 'INDIA' 10,000 miles car. | ||
| View original record | To Hs. from De. +3803 Da2/M3. 10. 25. 'INDIA' 10,000 MILES CAR. X. 5840 X. 3803 This is to remind you that Mr. Royce wishes the 10,000 miles car to have steering to N.sch.2062 (following immediately)… | ||
| Scan052 | Confirming the receipt of six sets of 20-HP chassis front springs from Messrs. Lemoine for the Experimental Department. | ||
| View original record | To Hs. C.Wd. X.3803 BY/HM7/K.23.11.25. 20-HP CHASSIS FRONT SPRINGS. Referring to our memo BY6/H.28.9.25., kindly note the six sets of springs have now been received from Messrs. Lemoine, and we have… | ||
| Scan053 | Receipt and testing of Lemoine manufactured springs from Paris and a related customs duty refund claim. | ||
| View original record | By Hs.✓ Chat: ----- X3803 D/BP/M17/H26.11.25. Springs of Lemoine manufacture ex Paris. -------------------------------------- We have received the following springs from Paris for testing out and… | ||
| Scan054 | Particulars of Lemoine Road Springs, comparing two different batches received. | ||
| View original record | X3503 To Hs from RHC. C. BY. RHC/BE. 3.12.25. RE LEMOINE SPRINGS We attach hereto charts which give particulars of Lemoine Road Springs as regards sectional thickness, of Spring Leaves, Camber of… | ||
| Scan055 | Design drawing detailing the specifications for front and rear leaf springs for Perkins. | ||
| View original record | [LEFT SECTION - FRONT] TITLE: FRONT DIAGRAM ANNOTATION: VAR. TO PRODUCE FLAT CAMBER DIAGRAM MEASUREMENTS: 2975, 777.00 VERTICAL MEASUREMENTS: 350.00, 316.50, 273.00, 242.00, 213.00, 186.00, 161.00,… | ||
| Scan056 | Blank page with a Print Room stamp. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM, 2 DEC 1925 DERBY. | ||
| Scan057 | Drawing and specification tables for front and rear leaf spring assemblies. | ||
| View original record | LEFT DRAWING (FRONT) DRG No. S.C. CURVE PLOT. FRONT CAMBER A=777.00 Values (left side): 1ST 15.00, 2ND 9.75, 3RD 6.50, 4TH 4.875, 5TH 3.900, 6TH 3.250, 7TH 2.800, 8TH 2.500, 9TH 2.125, 10TH 1.875,… | ||
| Scan058 | The reverse of a document page showing a handwritten reference number and a print room date stamp. | ||
| View original record | X3803 ROLLS-ROYCE, LIMITED PRINT ROOM, 12 DEC 1925 DERBY. | ||
| Scan059 | Particulars of Lemoine springs obtained from tests on the 20 HP model. | ||
| View original record | To DA. from Hs. X.3803 Hsl4/LG5. 3. 26. LEMOINE SPRINGS. Attached are particulars of the Lemoine springs which we have obtained from tests on the 20 HP. Hs. | ||
| Scan060 | Different front spring and shock damper schemes, including Woodheads and Lemoine. | ||
| View original record | To BY. DA. Hs.) FROM R. E. LE CANADEL. c. to CJ. BJ. X3803 R2/M30.3.26. FRONT SPRINGS X.3854 X.3803 X.5410 I do not consider BY's scheme would work in practice, but that we ought to test Woodheads… | ||
| Scan061 | Receipt and examination of 12 spring bushes from Lemoine, Paris. | ||
| View original record | By. Hs.✔ x3803 D/BP/Y518/H7.3.27. Re Lemoine, Paris. ------------------- Paris advise that they are sending us amongst other parts, 12 spring bushes made by Lemoines. We will have these passed to the… | ||
| Scan062 | Mislaid Lemoine spring bushes from Paris and the arrangement for a replacement supply. | ||
| View original record | By. c - Hs.✓ X3803 D/BP/Y5/Hl 3.5.27. Re Lemoine Spring bushes ex Paris. BY14/HlO.3.27. ---------------- With reference to your recent memo we regret that the spring bushes received from Paris have… | ||
| Scan063 | Design and testing of a new riveted spring clip to replace existing options. | ||
| View original record | To BY. Hs. from R. DA. c. to BJ. X3803 RQ/M6. 5. 27. SPRING CLIPS. X.1333 X.4429 X.3803 X.3854 There is no doubt that we can rivet on a clip at least equal to that used by Lemoine and the Americans,… | ||
| Scan064 | The inability to trace specific road spring bushes. | ||
| View original record | To BY. from Hs/Rn. 43803 Hs/Rnl.6.5.27. ROAD SPRING BUSHES. Lermonie With reference to the attached. Up to the moment we have been unable to trace the bushes in question. We should be glad to know… | ||
| Scan065 | Commenting on various aspects of road spring design and manufacturing, including rusting, grinding, and plate construction. | ||
| View original record | BY. From R. c. to BJ. Wor. c. to DA. Hs. 13803 R1/M14.8.28. ROAD SPRINGS. X.7410 X.4429 X.5410 M.380 3 I was very interested in your memo. with reference to road springs, but there are one or two… | ||
| Scan066 | Continued memorandum discussing the quality and cost of Firth springs compared to Lemoine springs. | ||
| View original record | contd :- -2- spring or American spring is due to better [struck through] the superior finish of the surface, or the workmanship, we ought to insist that Firth springs are at least equal, especially as… | ||
| Scan067 | Sending two blueprints for an experimental Hawk Engine Piston set. | ||
| View original record | R.R. 236 a 200 T) (S F 673. 12.5 100 G. 1376. RHO from DA/STT C. to Ck. X.3743. DA/STT15/EF30.12.19 Hawk Engine Piston - Section 403 - X 2275 Please receive herewith two Blue Prints of the following… | ||
| Scan068 | Responding to an enquiry for a Gudgeon Pin Locking Screw and Piston Ring Stop for a Hawk Northcliffe Chassis. | ||
| View original record | X.3773 To RHC from DA/Stt C. to Ck. DA/Stt3/EF28. 1. 20. Hawk Northcliffe Chassis - Piston - Sec. 403 X 3773. Re your enquiry for Gudgeon Pin Locking Screw and Piston Ring Stop, we send you herewith… | ||
| Scan069 | Alterations to the Hawk Northcliffe Chassis for the piston and gudgeon pin. | ||
| View original record | X.3773 To RHC from DA/Stt. C. to Ck. DA/Stt8/EF14. 2. 20. X.3773 Hawk Northcliffe Chassis. We send you herewith two blue prints of the following details in connection with alterations :- 1929/N N.… | ||
| Scan070 | Causes of burnt valves, pre-ignition issues, and engine vibrations. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to PN. Wor. c. to RG. BY. c. to HM. OY. c. to EP. X3773 R1/M29.12.22. RE. BURNT VALVES X.2764. X.1812. X.3773. I am very pleased you find my fears of close clearance to… | ||
| Scan071 | Practice of pinning piston rings and comparing it with the 40/50 and Hawk engines. | ||
| View original record | contd:- -2- America had abandoned pinning the piston rings. I think this would reduce efficiency of gas-tightness, and occasionally become disastrous unless a more complex ring was used. Personally I… | ||
| Scan072 | Technical memorandum comparing the pistons and compression ratio of the 'Hawk-Northcliffe' chassis with the standard 40/50 HP model. | ||
| View original record | To R. from Hs. X3773 He4/LCl.1.23. PISTONS ON "HAWK-NORTHCLIFFE". X3408 X3773 X790 The pistons on the above chassis are similar in design to the 40/50 HP. They are the split type with 4 rings. The… | ||
| Scan073 | Various piston designs and potential modifications, including the Zephyr split piston. | ||
| View original record | X3776 Extract from R1/C22.12.19. X.2748. RE PISTONS. X.3754. | ||
| Scan074 | Typed extract discussing the effectiveness of plunger rings and cast iron pistons. | ||
| View original record | Contd. -2- extract from R1/G22.12.19. is above the plunger and should be more effective. We have asked if a stiffer or wider ring is more effective. I have not heard which cast iron piston which we… | ||
| Scan075 | Development and features of various piston designs for a 10,000-mile test. | ||
| View original record | X.3776 To Hs. from R. c. to Cj. c. to Bn. c. to Wor. 3.1.20. --.-- X.3647. RE PISTON FOR 10,000 MILES. X.3715. X-3746 X3776 ------ I am telegraphing you tomorrow, Monday. (1) I regret that the plunger… | ||
| Scan076 | Use of Ricardo's aluminium pistons over returning to cast iron pistons. | ||
| View original record | Contd. -2- 3.1.20. worth while, it seems to me so hopeful, so reasonable and so safe. (6) I propose that we should consult with the Ricardo people on the subject of pistons, before deciding to return… | ||
| Scan077 | Incorporation of a stop mechanism into an adjustable collapsible piston. | ||
| View original record | H.R. 255 A (100 T) (S.F.) 845 6-8-19. G. 2480 X.3776. To Da. from E. Copy to Hs. Cw W Ck. E4.1.20. ------- X.3776. - RE ADJUSTABLE COLLAPSABLE PISTON. It is desired to incorporate in the above a stop… | ||
| Scan078 | Design specifications and required testing for an adjustable collapsible piston with a hairpin spring. | ||
| View original record | To Da. from E. Copy to CJ. " " Bn. " " Hs. " " Ck. X 3776 E4/G5.1.20. X.3776. - RE ADJUSTABLE COLLAPSABLE PISTON. ------------------------------------------ We send to you on Saturday the 3rd inst.… | ||
| Scan079 | Valve springs breaking on the 40/50 chassis and a proposal to use a more reliable double spring design from the aero engine. | ||
| View original record | BN. from EH. c. to D. X3777. EHS/LG24.11.19. X.3777. VALVE SPRINGS ON 40/50 CHASSIS. We have had a fair number of Valve Springs break on the 40/50 chassis. We consider that the valve springs we are… | ||
| Scan080 | The recurring, epidemic-like trouble with valve springs on the 40/50 chassis. | ||
| View original record | R.R. 255 M 200 T) (S.P. 473. 28-5-19) G. 2574. To [redacted] from Bn. Copy to Ck. X3777 Bn16/W25.11.19. X3777. RE VALVE SPRINGS ON 40/50 CHASSIS. Will you please take action on EHS/LG24.11.19. We… | ||
| Scan081 | The features and testing plans for the 4.EX experimental chassis. | ||
| View original record | R H. 235 A (100 T) (S.F 846 6-8-19) G. 2460 X 3777 Extract from Hs2/LG27.2.20. X. 3764. RE 4.EX CAR. §--- I propose to bring 4.EX chassis (the latest experimental chassis) to West Wittering next week.… | ||
| Scan082 | Extract listing experimental parts fitted to 40/50 chassis models. | ||
| View original record | X 3777 Extract from RHC1/LG15.4.20. We give below a list of experimental parts which have been finished. X.3764. 40/50 CHASSIS. X. No. | Parts fitted. | Engine. --- | --- | --- 3733. | Pinned Valve… | ||
| Scan083 | Valve mechanism noises at higher engine speeds, attributed to valve spring vibration. | ||
| View original record | Hs. from EP. ~~C. to By.~~ ~~C. to Der.~~ X3777 FR 1 F.R. EP6/F8.1.21. X.3777 X2764 Hm has brought to our attention certain valve mechanism noises which can be heard distinctly at higher engine… | ||
| Scan084 | Recommendation to replace faulty rectangular inlet valve springs with improved round wire springs on 20 HP Tourist Trophy cars. | ||
| View original record | Hs. EP. Hm Hr. Ht. from R. X3777 R1/M25.1.22. X.3777 RE 1905 20 HP. TOURIST TROPHY CARS; ETC. The rectangular section inlet valve springs fitted to the 20 HP. Tourist Trophy car down here were not… | ||
| Scan085 | The comparative endurance testing of valve springs, including a proposed American design. | ||
| View original record | Y3777 R. HS. EE. BY2-P23.8.23. VALVE SPRINGS. In connection with the American proposal to reduce the number of coils in the valve spring, we put this on our standard valve spring test rig. Our own… | ||
| Scan086 | Instruction to alter the steering lever to the other side on the front axle for the American model. | ||
| View original record | X.3681. Extract from R6/G27.9.19. RE AMERICAN MODEL FRONT AXLE: To have steering lever altered to other side. | ||
| Scan087 | Decisions on the production and supply of chassis for the American market. | ||
| View original record | X.3681 To Wor. from En. Copy to Bl. Da. BY. Hs. CK. X.3614. X.3548. Bn9/W31.10.19. RE AMERICAN CHASSIS. Mr. Johnson telephoned this afternoon that he has received a calbe from Mr. Olley stating that… | ||
| Scan088 | Report from a conference discussing proposed alterations for American market cars. | ||
| View original record | X.3681 COPY. Report C. December 2nd. 1919. RE ALTERATIONS PROPOSED AS DESIRABLE ON AMERICAN ROLLS-ROYCE CARS. Afternoon conference held at 27 William Street, Saturday, November 20th 1919. Present :… | ||
| Scan089 | Points for attention following an American visit regarding vehicle components. | ||
| View original record | Wor. from EP. c. Ry. c. Wd. c. Hs. c. CJ. X3681 EP6/F11.11.20. 11th Nov. 1920. X.3614. RE AMERICAN VISIT - POINTS FOR ATTENTION. (1) REAR SPRINGS. X.2628. X.3461. X.3900. It has now been agreed by R… | ||
| Scan090 | Letter from Rolls Royce of America Inc. chasing prints for the re-lubrication of the Axle Control Sphere. | ||
| View original record | R.R. F55A-100 T(S.H. 133. 11-8-20) G. 2300 X.3681 OY5/G4.8.21 Mr. Claude Johnson Managing Director Rolls Royce London England. Attention Messrs. Bailey and Hives. Dear Sir:- X.3430 Re Lubrication of… | ||
| Scan091 | Proposal memo regarding an alteration to Akermite Pivot Thrust Washers. | ||
| View original record | To R. from B.J. Copies to EP. Hs. Akermite Pivot Thrust Washers. Proposal sheet No. 19. I attach a copy of a letter from Springfield, dated August 15th 1923, (Oy2/W81523). The enclosures accompany the… | ||
| Scan092 | Letter discussing the wear and lubrication of pivot pin bushes and a proposed solution for oil spillage. | ||
| View original record | X-3682 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy5-W-72823 PERSONAL July 28, 1923. Mr. E. W. Hives, Mickleover, near Derby, England. Dear Hives: Re Pivot Pin Bushes Replying to your letter of… | ||
| Scan093 | Letter discussing the performance of an Ackeraite Pivot Thrust Washer after 7500 miles of use, comparing it to Genelite. | ||
| View original record | Oy2-W-31523 August 15, 1923. Mr. Claude Johnson, Rolls-Royce, Limited, London, England. (Copy for attention of Mr. Royce) (Mr. Platford) (Mr. Hives) ✓ Dear Sir: Re Ackeraite Pivot Thrust Washers… | ||
| Scan094 | Letter from the American branch to Derby discussing front axle faults, specifically swerving under braking and 'tramping'. | ||
| View original record | X3681 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy2-E-12826 December 8th, 1926 X8420 Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. (Copy for attention of Mr.Haldenby.) Dear Mr. Hives: Re… | ||
| Scan095 | Axle frequency, shock absorber performance, and front brake squeaking issues. | ||
| View original record | Oy2-E-12826 -2- December 8th, 1926. (2) It seems to be the natural criss-cross frequency of the axle, set in motion by road irregularities. It is definitely much less severe on a smooth concrete road… | ||
| Scan096 | Braking tests and steering behavior with a new front axle. | ||
| View original record | x3681 To OY. from Hs/Rm. c. HY. Hs/Rm2/T21.12.26. FRONT AXLE. x3900 x8410 x8470 With reference to yours ref. OY2-E12626 of the 8th inst. :- (1) We have not found that cars swerve to the right… | ||
| Scan097 | Technical response discussing solutions for wheel wobble, tramping, and shimmy issues. | ||
| View original record | Contd. -2- Hs/Rm2/T21.12.26. the cross steering tube, and that you do not try to fit front springs of the maximum flexibility. (2) We have never experienced a case of tramping that was not connected… | ||
| Scan098 | Remedies for steering wobble, brake squeaks, and other axle-related issues. | ||
| View original record | Contd. -3- Hs/Rm2/T21.12.26. are very susceptible to variation in the carcass stiffness. You should have no spring controlled movement in the cross steering tube. Just a few thousandths of an inch to… | ||
| Scan099 | Letter from the American to the British office regarding front axle standardization and testing. | ||
| View original record | COPY. X.3681 FROM ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy2-E-5527 May 5th, 1927. Mr. R. W. H. Bailey, Rolls-Royce, Ltd., Derby, England. Re Standardization sheets Front Axle - Section 7C40… | ||
| Scan100 | Page 2 of a letter concerning the fitting of aluminium guards to prevent ice banking around levers. | ||
| View original record | -2- May 5th, 1927. cover the front of the slots in the axle with aluminium guards, to prevent ice banking around the levers. Yours very truly, (Sgd) Maurice Olley. MO/E | ||
| Scan101 | Comparing brake servo multiplication and braking effort percentages between Phantom models. | ||
| View original record | COPY. Oy5-E-21527 February 15, 1927. To: Mr. Beaver cc Mr. Nadin Mr. Hulley Mr. Bagnall Mr. Burton Mr. Haldenby From: Mr. Olley Re Brakes England have standardized two levers C-73149 on the front… | ||
| Scan102 | Changes to front and rear braking proportions and test results. | ||
| View original record | -2- February 15, 1927. Roughly speaking therefore, for a given effort of the foot, Derby originally had - 40% front braking - 60% rear braking Now have - 30% front braking - 60% rear braking We have -… | ||
| Scan103 | Cover note forwarding a copy of a letter from Mr. Olley regarding RRAI Brakes for comment. | ||
| View original record | To R. from Sg. To Hs. from Sg. To EV from Sg. Hs X3681 re RRAI. Brakes. Sg19/E17.5.29 I enclose herewith copy of letter received from Mr.Olley and should be much obliged to have your comments to… | ||
| Scan104 | Letter suggesting modifications to the servo cam-levers to resolve issues with the brake servo system. | ||
| View original record | OY 4 May 6th, 1929. Mr. A. F. Sidgreaves, Rolls Royce Ltd., Dondon, England. cc - Mr. Royce Mr. Hives Mr. Bailey Dear Mr. Sidgreaves: RE BRAKES (1) SERVO. We wish to suggest for the consideration of… | ||
| Scan105 | Report discussing modifications to servo multiplication and brake linings to reduce squeaking. | ||
| View original record | - 2 - We have tried this in several modifications now for some two years and in every test find (1) About 30% increase in servo multiplication. (2) Consistent servo multiplication and freedom from… | ||
| Scan106 | Blueprint of a servo operating lever assembly and dog development. | ||
| View original record | A-14285 SERVO OPERATING LEVER ASSEMBLY. DEVELOPMENT OF DOGS ON MEAN DIAMETER (1.150 DIA) LEAD 6.7387 HELIX ANGLE ON MEAN DIA. = 61°-48'10" A-14287 A-14286 G-72478 A-9467 A-14288 A-12343 A-11594… | ||
| Scan107 | Alteration report discussing brake troubles and potential improvements to the servo system. | ||
| View original record | Sg c. Hs. 13681 BY11/G.24.5.29. R.R.A.I. - ALTERATION REPORTS. Referring to Sg19/E.17.5.29. amd OY.4 of the 6th inst., I have discussed this matter with the people concerned at Derby, but cannot find… | ||
| Scan108 | Correspondence about brakes, enclosing a copy and photos for comment. | ||
| View original record | H S Y3681 To BY from Sg. RRAI. re Brakes. Sg13/E17.8.29 Copy to Hs. Referring to Oy's letter of the 6th May, copy of which was sent to you, I wrote him fully arising out of a memo. which you sent me,… | ||
| Scan109 | Letter discussing the design, testing, and manufacturing costs of brake ball thrust cam levers. | ||
| View original record | OY-1 June 3rd, 1929. Mr. A. F. Sidgreaves, Rolls Royce Limited, London, England. cc - Mr. Royce Mr. Hives Mr. Bailey Dear Mr. Sidgreaves: BRAKES With further reference to OY-4, May 6th, we attach a… | ||
| Scan110 | Letter proposing the omission of a star spring and bushing to ensure even bedding of cam faces. | ||
| View original record | - 2 - We also propose that the omission of the star spring and of the bushing or spigot within the outer lever is desirable to insure that all four cam faces will bed evenly. Very truly yours, ROLLS… | ||
| Scan111 | Photograph displaying four lever arms with their associated ball bearing components. | ||
| View original record | ", | ||
| Scan112 | Letter to Rolls-Royce of America regarding the front axle control anchorage and a proposed alteration. | ||
| View original record | X3681 c. to Wor. c. to Hs. 4th. July 1929. BY/Cgh7/G. X3681 X3054 Messrs. Rolls-Royce of America, Inc. Springfield, Mass. FOR THE ATTENTION OF MR. M. OLLEY. --------------------------------- Dear… | ||
| Scan113 | Tests on ball thrust levers and potential modifications to R.R.A.I. brakes. | ||
| View original record | Sg. c. Hs. ----- x3681. BY/Cgh15/G.18.7.29. R.R.A.I. BRAKES. ---------------- With reference to Sg23/E15.7.29. and copy of OY.5 dated July 2nd. the value of the ball thrust between the cam faces is… | ||
| Scan114 | Two distinct sources of a clanking noise in the brake system upon release and proposing a solution. | ||
| View original record | X3681 Sg. 96. c. Hs. BY3/G.8.8.29. R.R.A.I. - BRAKES. Referring to OY's letter of July 12th (ref. OY.10) sent under cover of Sg1/D26.7.29. the memo in question does not make clear to us if OY.… | ||