Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Sending drawing Lec.1209 for the 'Buzzard' crankshaft and requesting an order for rough turned cranks. | ||
| View original record | ORIGINAL E2/G2/3/20. 2 To D.A. from E. Copy to C.J. " " BN " " HS " " CK. X.3788 RE "BUZZARD" CRANKSHAFT. We send you herewith drawing No. Lec.1209 shewing the above. Would you kindly put the rough… | ||
| Scan1 | Drawing Lec.1213 for the 'Buzzard' crankshaft, detailing new methods for plugging holes and dealing with oil caps. | ||
| View original record | To DAr from E. [DAr is struck through] Copy to SJ. [SJ is struck through] " " RN. [RN is struck through] " " HS. [HS is struck through] " " CK. ORIGINAL. E3/G2/3/20. (3) X.3788 RE "BUZZARD"… | ||
| Scan2 | Request for the creation of one-eighth scale models of 'Vulture' and 'Buzzard' bonnets and chassis for comparative purposes. | ||
| View original record | To HA. from E. Copy to CC. HS. CK. X.3862 X.3822 ORIGINAL 4/3/20 E2/CC/F D. (4) [5 MAR 1920] RE MODELS OF BONNETS - "VULTURE" AND "BUZZARD" CHASSIS We send you herewith drawings Nos. Loc.1210, 1211,… | ||
| Scan3 | From E. to D.A. requesting further dimensions for the Pattern Shop. | ||
| View original record | To D.A. from E. -2- E2/G28/2/20 Contd. Would you kindly supply to the Pattern Shop any further dimensions required that are not given on our drawings. E. | ||
| Scan4 | Listing various parts received from Mr. Olley for inspection and testing. | ||
| View original record | To HS. from E. Copy to CJs. " " DN. " " CK. ORIGINAL D 8 MAR 1920 E5/G4/3/20. We send you herewith the following list of parts received from Mr. Olley, for inspection and test:- X.3903 1 Foxboro… | ||
| Scan5 | List of parts received from Mr. Olley for inspection and test. | ||
| View original record | J F To Hs Olley and misc. parts from DUSA for insp/n & test 8 MAR 1940 REF. TO YOURS OF COPY TO MR. .NO . CK. We are sending you herewith, in the following list of parts received from Mr. Olley, for… | ||
| Scan6 | The failure of a clamping bolt pad on a 40/50 HP Steering Box and Mr. Royce's proposed design alteration. | ||
| View original record | To DA. from E. Copy to CJ. A BN. TDM. CK. X 39:2.RE 40/50 H.P. STEERING BOX. We send you herewith a specimen of part T.2417 Clamping Bolt Pad for the 40/50 H.P. Steering Box. You will notice that it… | ||
| Scan7 | With diagrams discussing the design of rear leaf springs, comparing current and proposed practices. | ||
| View original record | To HS. from R. Copy to CJ. " " BN. " " DA. " " WOR. " " WD. " " BY. X.2628 ORIGINAL D 8 MAR 1920 RE REAR SPRINGS X.3981 R7/G5/3/20. 5 During Mr. Hives' recent visit he shewed springs of our present… | ||
| Scan8 | Spring design, addressing issues with friction, squeaking, and reverting to a former practice. | ||
| View original record | To HS. from R. -2- R7/G5/3/20 Contd. It will be noted that we shall then be reducing the stress in the springs and be obliged to carry more steel unless we adopt some other modification in the… | ||
| Scan9 | Modifications to the 'Goshawk' starting motor, involving a new reduction gear and clutch. | ||
| View original record | To D.R. From E. Copy to C.R. " " BN. " " HS. CK.X.3534 RE STARTING MOTOR FOR "GOSHAWK" ORIGINAL We send you herewith drawing No. LeC.1214 shewing a single train reduction gear for the above motor… | ||
| Scan10 | The benefits of greasing electrical switches with vaseline to prevent oxidation. | ||
| View original record | To CK. from R. Copy to CU. " " BN. " " HS. " " HM. " " PN. " " H. " " Royce Ltd. ORIGINAL 2 R2/G8/3/20. 10 MAR 1920 X.805. RE ELECTRICAL SWITCHES. Thoroughly grease all electrical switches. It is… | ||
| Scan11 | Problem of excessive floor heat in the front seat and a potential solution of removing the under-car mudguard. | ||
| View original record | To R. from CJ. Ref 2 EX CJ11/D9.3.20. MAKE 10 (3/20, 2do. M 2) ET 621 a 220 JLH My Dear R., In BJ's report on his drive from Paris to Le Canadel, he says that although there was a thick coir door-mat… | ||
| Scan12 | Passenger comfort in the 10,000 Miles Trials Car compared to modern open cars. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846. 6-8-19) G. 2460. C.K. x.819 Ref 2EX To Hs. from CJ. CJ4/E10.3.20. X.3743 RE 10,000 MILES TRIALS CAR. X.819 I attach herewith copy of memorandum sent to Mr. Royce… | ||
| Scan13 | Modifications and connection issues for Smith and Lucas car dynamos. | ||
| View original record | To CK. from R. Copy to GJ. [Struck through] " " PN. [Stamp: ORIGINAL] [Stamp: 13 MAR 1920] R6/G10/3/20. [Handwritten: X.294.] RE DYNAMOS [Handwritten: X.3014] [Handwritten: X.3954] Next week will do… | ||
| Scan14 | Improvements to a Lucas dynamo's terminal connections to rectify issues with bad contacts. | ||
| View original record | To DA. from E. Copy to G.I. [Struck through] DN. [Struck through] HS. CK. X.3014 X.3954 ORIGINAL. 4 RE IMPROVEMENTS TO LUCAS DYNAMO. Would you kindly note that a Lucas dynamo has been partially… | ||
| Scan15 | Requesting an alteration to conductor connections and ensuring Lucas machines are made safe before dispatch. | ||
| View original record | To DA. from E. -2- E1/G10/3/20 Contd. conductors from the terminal plate to the brushes should be made between two nuts, as shewn. Would you kindly arrange to have this alteration adopted at the… | ||
| Scan16 | Complaint of heat and analyzing scuttle ventilation on the 10,000 Miles Trials Car. | ||
| View original record | HOT FEET To CJ. from Hs. c. to R. x.819. Ref 2EX Hs2/LG11.3.20. X.3743. RE 10,000 MILES TRIALS CAR. X.819. With reference to BJ's complaint of heat under the scuttle on the above car. The scuttle… | ||
| Scan17 | The action of a chassis dynamo auto switch and proposals for its improvement. | ||
| View original record | To CK. from R. Copy to CS. BN. E. X.3958 ORIGINAL. R5/G1D/3/20. 5 15 MAR 1920 RE CHASSIS DYNAMO AUTO SWITCH. X.3770 X.3771 Thank you for your report on the action of matic switch. I am sorry that I… | ||
| Scan18 | Electrical resistance and power distribution in an actuating magneto coil to reduce error in a Lucas switch. | ||
| View original record | To CK. from R. -2- R5/G12/3/20 Contd. susceptible to temperature changes. I suggest that 5 volts be absorbed in the actuating magneto coil and 10 volts in the external resistance coil. if we used .300… | ||
| Scan19 | Performance of Chloride and Tudor accumulators and updates to the instruction book. | ||
| View original record | To CK. from R. Copy to CJ. BN. (struck through) ORIGINAL R1/G15/3/20. 5. 16 MAR 1920 X.604 RE CHLORIDE ACCUMULATORS. X.979. X.664 It is difficult for me to judge as to whether a thick plate is… | ||
| Scan20 | Technical memo about experiences with portable and stationary accumulator cells, focusing on maintenance, charging, and dynamo regulation. | ||
| View original record | To PN. from R. Copy to Ed. "" BN "" CK. "" H.S. "" H. ORIGINAL X.664 RE ACCUMULATOR CELLS. X.2676 X.294 X.607 X.1402 X.3526 I have had quite a little experience with cells at West Wittering, both of… | ||
| Scan21 | Cause and proposed solution for piston rattles. | ||
| View original record | To CJ. from R. Copy to BN. " " HS. " " EP. X 2448 RE PISTON RATTLES. X 3757. I telegraphed to you yesterday that we had this particular matter in hand which has only lately come to light. I, too, am… | ||
| Scan22 | Construction specifications for two types of dynamos. | ||
| View original record | To CK. from R. Copy to CJ. " " BN. ORIGINAL RE DYNAMOS. Referring to your visit here last week you will remember that we came to the conclusion that it was worth while building two dynamos from the… | ||
| Scan23 | Specifications for building an armature, including materials, winding, and testing procedures. | ||
| View original record | To CK. from R. -2- R6/G22/3/20 Contd. Mica is used between the plates to avoid the turning over of the plates due to milling the armature grooves after the armatures are built up. A special caution to… | ||
| Scan24 | Expected performance and efficiency of a dynamo compared to other systems. | ||
| View original record | To CK. from R. -3- R6/G22/3/20 Contd. We are expecting that the dynamo will cut in at less than 1650 (?1450) revs. (namely, 10 miles per hour) and have sufficient electromotive force to give the full… | ||
| Scan25 | Continued use of nickel copper filter gauze until it proves defective or a superior option is found. | ||
| View original record | To HS. from R. Copy to CJ. BN. ORIGINAL. R1/G22/3/20. X3701. RE GAUZE FOR PETROL FILTERS. With reference to the nickel copper filter gauze, I should use this until it is proved defective, or we have… | ||
| Scan26 | Ignition plug testing, materials, and specifications. | ||
| View original record | from R. HS. ORIGINAL RB/C27/3/20. 29 1920 X.3905 RE IGNITION PLUGS. The ignition plugs sent have not passed Mr. Hives' test. Try and find out what does best at Service Station, and send other samples… | ||
| Scan27 | Clarifying the rear axle gear ratios for the 'Buzzard' and 'Vulture' engines. | ||
| View original record | To D.A. from E. Copy to C.J. BN (crossed out) HS (crossed out) X.3832 CK (crossed out) X.3843 ORIGINAL RE "BUZZARD" AND "VULTURE" REAR AXLE GEAR RATIOS. Information has already been sent that the back… | ||
| Scan28 | Observations of balancing speeds for Lucas and Smith chassis lighting dynamos. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn. c. to Wor. c. to PN. c. to Da§ c. to Hs. c. to By. ORIGINAL Ck2/T4.3.20. X.3014 - LUCAS E.575 TYPE CHASSIS DYNAMO. X.295. - SMITH (T & M) TYPE A & 2D… | ||
| Scan29 | Dynamo temperature tests, battery E.M.F. values, and cutting-in speeds. | ||
| View original record | R R 235 A (100 T) (S.F. 846. 6-8-19) G. 2460 To R. contd. -2- Ck2/T4.3.20. the bulbof which is immersed in a little copper oil bath on a copper saddle fitting over the dynamo carcase, and these do not… | ||
| Scan30 | Report comparing performance characteristics of Smith type A and 2D dynamos under different temperature conditions. | ||
| View original record | Contd. -3- Ck2/T4.3.20. For the Smith type A dynamo, these figures will be seen to be about 500 R.P.M. for the cold condition and 585 R.P.M. for the hot condition. We have, however, now received a… | ||
| Scan31 | Experimental investigation and comparison of Lucas and Smith dynamos, noting performance, cutting-in speeds, and defects. | ||
| View original record | To R. contd. -4- Ck2/T4.3.20. Lucas (cold) 11.5 miles per hour. Lucas (hot) 13.9 " " Smith type A. (cold) 9.6 " " Smith " A. (hot) 11.2 " " } Assuming the " " 2D. (cold) 8.25 " " } same size dy- " "… | ||
| Scan32 | Follow-up communication about arranging a meeting with the Smith Company to discuss and inspect a machine. | ||
| View original record | Contd.. -5- Ck2/T4.3.20. while ago we pointed out to the Smith Company that this was one of the things we were particularly up against on our present standard machine. Now that you have suggested… | ||
| Scan33 | Observations of cutting in speeds for Lucas chassis lighting dynamos. | ||
| View original record | X.294. OBSERVATIONS of CUTTING IN SPEEDS of CHASSIS LIGHTING DYNAMOS: I. LUCAS DYNAMOS: X.3014. Date. | Dynamo. | Temperature. | Speed. R.P.M. | E.M.F. Volts. | Remarks. ---|---|---|---|---|---… | ||
| Scan34 | Observations on the cutting in speeds of chassis lighting dynamos, specifically II Smith (T & M) dynamos. | ||
| View original record | X.294. OBSERVATIONS X.295. of CUTTING IN SPEEDS of CHASSIS LIGHTING DYNAMOS. II SMITH (T & M) DYNAMOS. Date. | Dynamo type. | Temperature. | Speed R.P.M. | E.M.F. Volts. | Remarks.… | ||
| Scan35 | Experiments comparing Lucas and Smith standard cut-outs. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn c. to Wor. c. to PN. c. to By. c. to Da. c. to Hs. c. to EP. ORIGINAL X.3770 - LUCAS CUT-OUT. X.1815. X.3771. - SMITH CUT-OUT. We have made experiments on… | ||
| Scan36 | Test report on the current required to operate and de-operate various electrical cut-outs. | ||
| View original record | Contd. -2- Ck4/T5.3.20. Then it was arranged to send a reverse current through the series coil and adjust this to such a value that with current passing through the shunt coil of magnitude just… | ||
| Scan37 | The performance and overheating issues of Lucas and Smith electrical cut-outs when hot. | ||
| View original record | Contd. -3- Cut-out. Volts required on shunt coil to just operate when hot. Amperes. Ohms. Lucas present standard A. 15.5 .345 45 Lucas present standard B½ 17.0 .42 40.5 Smith cut-out (1) 13.5 .100 135… | ||
| Scan38 | Comparing the performance of a Lucas component with a Smith cut-out, focusing on dynamo output and battery charging characteristics. | ||
| View original record | Contd. -4- It would appear that for some reason or other Messrs. Lucas have altered the winding. We are taking up this point with them immediately. The Smith cut-out on the other hand took a much… | ||
| Scan39 | Continued memorandum discussing the performance variations of a dynamo between two specific vehicles. | ||
| View original record | Contd. -5- Ck4/T5.3.20. give one a wrong idea as to when the dynamo really cuts in and out and may vary considerably on different cars, thus giving a possible explanation of the difference previously… | ||
| Scan40 | Visit from Messrs. Smith & Sons Ltd. concerning the potential supply of their Type A & 2D dynamos. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn. c. to PN½ c. to Da. c. to By. c. to Hs. c. to EP. ORIGINAL Ck1/T13.3.20. X.295 - SMITH (T & M) TYPES A & 2D DYNAMOS. We received a visit on Wednesday last,… | ||
| Scan41 | Dynamo improvements including magnetic humming reduction, insulating materials, and output performance. | ||
| View original record | Contd. -2- Ckl/T13.3.20. (1) The provision of an armature with skewed slots and any other little alterations to pole pieces, etc., which they consider would reduce the magnetic humming noise of the… | ||
| Scan42 | Technical discussion on dynamo speeds, battery charging characteristics, and output specifications. | ||
| View original record | Contd. -3- Ckl/T13.3.20. It is argued that high dynamo speeds are mostly obtained during running in the open country and in circumstances in which the battery gets sufficient charging in any case, so… | ||
| Scan43 | The temperature effects on cut-out operating voltage and the materials for contact points. | ||
| View original record | To R. contd. -4- Ckl/T13.3.20. conjunction with their respective cut-outs, and in both cold and fully hot conditions. So far as we have gone at present, it would appear that the change in operating… | ||
| Scan44 | Consideration of alternative switchbox and cutout arrangements following the adoption of the Smith dynamo. | ||
| View original record | Contd. -5- Ck1/T13.3.20. If we consider the adoption of the Smith dynamo as standard, we shall have to face the question as to what we are going to do about the switchbox and cutout. There would seem… | ||
| Scan45 | Comparison of Smith dynamos with Smith cut-outs versus Lucas dynamos with Lucas cut-outs. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn. x.295 c. to PN. x.3014 c. to Da. x.3770/11 c. to By. c. to EP. c. to Hs. ORIGINAL. Ck2/T16.3.20. COMPARISON OF SMITH DYNAMOS OPERATING WITH SMITH CUT-OUTS… | ||
| Scan46 | Report page detailing the continued testing procedures and results for dynamo cut-outs, comparing Smith and Lucas models. | ||
| View original record | Contd. -2- (3) The speed was then allowed to fall until the cut-out just broke contact, at which instant the voltage, speed and reverse amperes through the series coil were noted. (4) After the… | ||
| Scan47 | Comparison of the operating voltages for Lucas and Smith cut-outs under various test conditions. | ||
| View original record | Contd. -3- Ck2/T16.3.20. but otherwise steady voltage, that the points at which the cut-outs operate on such a voltage are rather indefinite, particularly in the case of the Lucas cut-out which we… | ||
| Scan48 | The voltage required to operate Lucas and Smith cut-outs under battery and dynamo test conditions. | ||
| View original record | Contd. -4- Ck2/T16.3.20. Voltage to operate cut-outs. | | on Battery test. | On dynamo test. | |---|---|---|---|---| | | Cold. | Hot. | Cold. | Hot. | | Lucas A. | 13.1 (later 12.6 - 12.8 | 15.5 |… | ||
| Scan49 | Test data for Lucas dynamos and cut-outs, comparing performance speeds under hot and cold conditions. | ||
| View original record | Contd. -5- Ck2/T16.3.20. approximate dynamo balancing speed corresponding to the battery E.M.F. specified, for the quite cold or fully hot condition as the case may be. These speeds are to be taken in… | ||
| Scan50 | Test data for a Smith type A dynamo with both old and new cut-outs, under hot and cold conditions. | ||
| View original record | Contd. -6- Ck2/T16.3.20. Dynamo:- Smith type A. Cut-out:- Old Smith. Condition. | Volts. | Amperes. | Speed. | Corresponding approx. dynamo balancing speed. Cold: 1. | 12.5 | -- 2. | 12.6 | +.1 3. |… | ||
| Scan51 | Test results and analysis for a Lucas E.5757 No. 402 dynamo and a new S.B. cut-out under hot and cold conditions. | ||
| View original record | Contd. -7- Dynamo:- Lucas E.5757 No.402. Cut-out:- New Expl. S.B. with main fuse. | Condition. | Volts. | Amperes. | Speed. | Corresponding approx. dynamo balancing Speed |… | ||
| Scan52 | Report comparing Lucas and Smith dynamo cut-outs, including details of a dismantled Lucas unit. | ||
| View original record | Contd. -8- Ck2/T16.3.20. with the dynamo balancing speed, which is of course accentuated in the case of Lucas C. On the other hand, in the case of the Smith combinations, this delay is nowhere near so… | ||
| Scan53 | Continued discussion on shunt winding performance, reverse current, and cutting-in points relative to temperature and battery E.M.F. | ||
| View original record | Contd. -9- Ck2/T16.3.20. shunt winding is all copper it looks as if, when in the fully hold condition, a slight reverse current at the instant of cutting in is right in order that, when fully hot, the… | ||
| Scan54 | Broken square-type shock absorber lever on the 2.EX Car, noting it has been condemned and should be replaced by the serrated lever. | ||
| View original record | To R. from As. c. to Cl. c. to BN. c. to E. c. to Da. ORIGINAL HS6/LG16.3.20. X. 34614. RE SHOCK ABSORBERS. We have received a report that one of the shock absorber levers fitter to 2.EX Car have… | ||
| Scan55 | The suitability of the Foxboro Thermometer for American chassis, detailing installation issues and future plans for thermostat control. | ||
| View original record | To R. from Hs. c. to CJ c. to BM. c. to CY. c. to Na. c. to E. c. to Da. c. to BY. ORIGINAL C-K Hs3/LG16.3.20. X.3903. REPORT ON AMERICAN CHASSIS PARTS. X.3565 Foxboro' Thermometer. This Thermometer… | ||
| Scan56 | The Foxboro' Thermometer for use on the American chassis, comparing it with the Cambridge Thermometer. | ||
| View original record | Handwritten notes: H.S. American chassis to Foxborough Thermometer evaluation R given slight modifications rather better than Cambridge R says - will thermostat come off when water is controlled?… | ||
| Scan57 | American Chassis Parts, specifically B-G and Herz sparking plugs. | ||
| View original record | To R. from HE. c. to C.L. c. to BN. c. to Da. c. to OY. c. to NA. ORIGINAL. C-K. Hs4/LG17.3.20. X.3905 REPORT ON AMERICAN CHASSIS PARTS. X.3403 B-G SPARKING PLUGS. These plugs have mica insulation and… | ||
| Scan58 | The unsuitability of a sample Champion spark plug and specifying desired features for plugs to be used in car work. | ||
| View original record | Hs4/LG17.3.20. ----------------- We do not consider these plugs satisfactory for our use. CHAMPION PLUGS. We have so far only received one sample of these plugs. From examination, the complaint we… | ||
| Scan59 | Unsuitability of single-point Champion spark plugs and requesting multi-point plug samples. | ||
| View original record | [Handwritten] Hs American Champion SPARK PLUGS to B6-NBG ? R Champion - ? Eagle S/see for car requirements DR [Typed - Mirrored Text] we do not consider these plugs suitable for our requirements.… | ||
| Scan60 | Failure of a new epicyclic gear due to lubrication issues in the planet wheel ball bearings. | ||
| View original record | R.R. 235 A (100 T) (S F. 846. 6-8-19) G. 2460 To C.J. from Hs. ORIGINAL C-R HS2/LG22.3.20. X.3372 RE. FAILURE OF NEW FRICTION ANCHORAGE EPICYCLIC GEAR. X.3168 The lubrication of the planet wheel ball… | ||
| Scan61 | The potential causes of failure in planet wheel ball bearings. | ||
| View original record | Contd. -2- planet wheel ball bearing lubrication. They have not yet been examined by any of our men to confirm this point. The experience goes to prove that it is a fault which takes place on the… | ||