Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | From E. to Hy. detailing Mr. Royce's instruction for all spanners to be single-ended and requesting samples of sheet steel spanners. | ||
| View original record | To Hy. from E. c. to cJ. Hs. Hp. ORIGINAL E1/M2.10.22. X4083 SPANNERS. In reply to your query re spanners kindly note Mr. Royce wishes all spanners, from the smallest to the largest, to be single… | ||
| Scan1 | The manufacture of parts for a small spring testing apparatus. | ||
| View original record | To By. from E. c. to Hs. ORIGINAL. E2/M3.10.22. RE. SPRING TESTING APPARATUS. X2628. We send you herewith drawing No. LeC 1637 shewing some pieces required for a small spring testing apparatus. Could… | ||
| Scan2 | Telegram regarding the quality and specifications of switchbox screws and spring washers. | ||
| View original record | H6 Roycar Derby. Clarke re switchboxes screws are brittle will they not do better in steel they are also too short and spring washers are badly shaped should be like weston. Royce. | ||
| Scan3 | Modifying the Goshawk II switch-box to protect the magneto wire against unauthorised interference. | ||
| View original record | TO HSY. FROM E. C. to C.J. C. to WAR. C. to H.S. ✓ C. to E.W. C. to E.R. ORIGINAL Y4081 GOSHAWK II. SWITCH-BOX TO ACCOMMODATE MAGNETO IGNITION. We send you herewith drawing No. LeC 1632, showing the… | ||
| Scan4 | Revised design for a Goshawk wheel carrier on the running board. | ||
| View original record | Hs TO BY. FROM DA. c. to Ch. c. to HOR. c. to HS. ✔ c. to EH. RECEIVED STAMP: OCT 6 1922 GOSHAWK - WHEEL CARRIER ON RUNNING BOARD. Y4085 We send you herewith N.scheme 1332 shewing a revised wheel… | ||
| Scan5 | Telegram regarding testing a modification to an armoured car's air pump and camshaft drive to reduce gear and valve noise. | ||
| View original record | Roycar Dinf X4195 Hives Couple armoured car air pumps Direct To front end of cam shaft by steel or fabric joints Test if it causes Gear Noise by silencing air and Valve Noises Royces | ||
| Scan6 | Requesting one set of parts be made for a spring testing apparatus, as per drawing No. LeC 1638. | ||
| View original record | To BY. from E. c. to CJ. HS. ORIGINAL E2/M5.10.22. SPRING TESTING APPARATUS. X2628 We send you herewith drawing No. LeC 1638 shewing a testing apparatus for large springs. We should be glad if you… | ||
| Scan7 | New type of tyre carrier for the 40/50 chassis and Goshawk model. | ||
| View original record | TO-HN. FROM DA/EV. C. TO DY. &. HS.✓ ORIGINAL RE. TYRE CARRIERS/ON 40/50 CHASSIS. ✓3633. Replying to your Hn16/LR21022., we think we have found a very satisfactory type of carrier for supporting the… | ||
| Scan8 | Issues with the A.T. Speedometer flange on a Goshawk and proposing a solution. | ||
| View original record | TO BY. from DA/EV. c. to HS. ORIGINAL RE. A.T. SPEEDOMETER ON GOSHAWK. X4308 X4077 The coachbuilding department have already experienced the same trouble with this instrument as they had with all the… | ||
| Scan9 | Notice about alterations to the Goshawk 11 magneto wiring conduits and a modification to the securing clip. | ||
| View original record | TO SY. FROM E. c.c. to CJ. WGR. c.c. to HS. EFC. ✓ c.c. to WH. ORIGINAL E1/M5.10.22. X 4075 GOSHAWK 11. - WIRING FOR MAGNETO. We send you herewith drawing No. LoC 1634 shewing alterations to the… | ||
| Scan10 | The repositioning of the vacuum tank on a 40/50 chassis to avoid cutting the dashboard. | ||
| View original record | R.R. 225 A (100 T) (S.P. 835 6-8-19) G. 2480. ORIGINAL. To HS. from E. E3/M5.10.22. RE. VACUUM TANK ON 40/50 CHASSIS. X3575 With regard to your note concerning the size and position of the vacuum tank… | ||
| Scan11 | List of chassis spares with their corresponding weights. | ||
| View original record | (1) CHASSIS SPARES. FRONT. REAR. TOTAL. LBS. LBS. LBS. LAMPS. 2 head. 9¼ - 9¼ 2 side. 2 - 2 1 tail. - ½ ½ 1 instrument board lamp. } 1 inspection lamp. } 1 1 1 Spare bulbs in case. ½ Clock. ½ ½ 1… | ||
| Scan12 | The weight distribution of car bodies and passengers for various configurations. | ||
| View original record | (2) BODIES. The weight of the body is to include wings, valances, running boards and (wheel carrier on near side and luggage grid if any.) Maximum weight to be 1000lbs, approximate-ly 9 cwt. BODY… | ||
| Scan13 | Weight distribution table for 'Maximum' and 'Minimum' car configurations. | ||
| View original record | (3) Maximum car. FRONT. LBS. REAR. LBS. TOTAL. LBS. Standard chassis with 4 tyres, battery, spare wheel carrier, step irons, instruments (except clock and speedometer and gauge lamp, and dummy switch.… | ||
| Scan14 | Proposal for car springing, with calculations for maximum and minimum spring loads. | ||
| View original record | (4) SPRINGING OF CARS. We propose to spring for all the fixed weights and for 50% of the variable weight (full load) for rear springs. MAXIMUM SPRING. Front axle and spring - 260 lbs. Rear axle and… | ||
| Scan15 | Urgent request to order a new cylinder head for a 10.HP Fiat car. | ||
| View original record | Order Office. (MS) URGENT ORIGINAL E1/M7.10.22. c. to HS. FIAT CYLINDER HEAD. X4133 In accordance with Mr. Royce's instructions would you kindly order a new cylinder head for the 10.HP. Fiat car which… | ||
| Scan16 | Modifications to the Goshawk 11 luggage grid (X3524) suggested by Mr. Royce for manufacturing and material improvements. | ||
| View original record | To Ry. from Da. c. to GJ. MOR. c. to HS. SP. ORIGINAL. Da2/M7.10.22. GOSHAWK 11. LUGGAGE GRID. X3524 We send herewith N.sch. 1335 shewing some modifications to the luggage grid suggested by Mr. Royce… | ||
| Scan17 | Bijur starter motor pinion for the Goshawk 11 engine, referencing drawing Lec 1640. | ||
| View original record | To Hy. from E. c. to-CJ. HS. ✔ ORIGINAL E2/M7.10.22. 3 x 3592 x 3587 GOSHAWK 11. BIJUR STARTER MOTOR PINION. We send you herewith drawing No. Lec 1640 shewing the Bijur starter motor pinion applied to… | ||
| Scan18 | Request for a 24-volt, 12-cell cutout with specifications for its mounting and terminals. | ||
| View original record | R R. 235 A.(100 T) (S & F 846 6-8-19) C. 2469. X:1815 ORIGINAL R1/M9.10.22. To EFC: from R. X1815 Will you please send to WW. a RR. cutout wound for 24.Volts, that is 12 cells in-stead of 6. It should… | ||
| Scan19 | Failure of a silencer cutout design for the Goshawk 11 engine and proposing a new attempt. | ||
| View original record | R.R. 235 A (100 T) (S.F. 216 6-S-19) G. 2480 ORIGINAL, To HS. from R. R6/M9.10.22. GOSHAWK 11. SILENCER & CUTOUT. X4269 I am sorry that our attempt at the cutout is a failure. I do not want to revert… | ||
| Scan20 | Issues with imperfect springing on Goshawk cars and proposed corrective actions. | ||
| View original record | To BJ. from R. c. to GJ. c. to WOR. c. to PN.✓ c. to HS. c. to EP. RECEIVED GOSHAWK. X4219 X4261 It has been noticed by Mr. Elliott that the photographs being published are from cars which are… | ||
| Scan21 | Revised scheme for the 'Stork' front axle radius rods, superseding a previous drawing. | ||
| View original record | TO BY FROM DA. c. to CJ. c. to HCR. c. to HS.✓ [STAMP: RECEIVED 11 OCT 1922 DH] "STORK" FRONT AXLE RADIUS RODS. X4547 Please receive N. scheme 1336 showing details of the radius rods, and also a… | ||
| Scan22 | Requesting the order of forgings for a 'Seagull' crankshaft, pending final design of the wheel case. | ||
| View original record | ORIGINAL. To By. from E. c. to C.J. Hs. E3/M12.10.22. "SEAGULL" CRANKSHAFT. X9010 We send you herewith drawing No..Lec 1633 shewing the above. We should be glad if you would order up the necessary… | ||
| Scan23 | Return of a booklet on the Watson Stabilator, noting its superiority over Gabriel Snubbers. | ||
| View original record | R.R. 235M (100 T) (S.H 798. 10-12-20) G. 2948 ORIGINAL. TO HS. FROM E. E4/M13.10.22. WATSON STABILATOR. X4551 We return herewith the booklet concerning the Watson Stabilator, as requested on same.… | ||
| Scan24 | Request to create and test a cutout component. | ||
| View original record | R R 235 A (100 T) (S F 846 6 S-19) G. 2469. ORIGINAL 2 TO EFC. FROM R. R1/M14.10.22. X.1815 X.4215 RE CUTOUT FOR WW. I intend you to make up an RR. cutout but I am not particular whether it is a R-R,… | ||
| Scan25 | Performance issues and faults found on the No.6 Goshawk car. | ||
| View original record | R R 235 A (100) T (S.F. 846 6-8-19) G. 2460 TO HS. FROM R. c. to GJ. BJ. c. to WOR. PN. c. to BY. EP. ORIGINAL RE. No.6. GOSHAWK. X4086 X4219 It is not that the performance of No.6.Goshawk is thought… | ||
| Scan26 | The disappointment with the rough-acting starter on the Goshawk and the application of a Bijur automatic pinion scheme. | ||
| View original record | RR 925 A (100 T) (S F 846 6849) G 2409 ORIGINAL TO HS. FROM R. c.c. to CJ. R4/M18.10.22. X3592 X3587 I am disappointed with the starter on the Goshawk because it acts so roughly. We have sent through… | ||
| Scan27 | The revised 'Stork' pedal gear for pneumatic brakes or a new Servo system. | ||
| View original record | OR Hs IGINAL RECEIVED OCT 23 1922 TO SY. FROM DA. DA1/M19.10.22. c. to CJ. c. to HCH. c. to HS. ✓ "STORK" PEDAL GEAR. X4/35 We send herewith N.sch.1338, shewing the revised pedal gear suitable for… | ||
| Scan28 | Requesting calculations and a review of the 'Seagull' starting motor particulars based on drawing LeC 1644. | ||
| View original record | R.R. 235m (100 T) (S.H. 78a 10-12-20) G. 2948 TO EFC. FROM E. ORIGINAL. E2/M19.10.22. c. to CJ. WOR. [struck through] c. to BY. HS. [struck through] X4001. "SEAGULL" STARTING MOTOR PARTICULARS. X4001… | ||
| Scan29 | Proposed adjustments to the cams, camshaft, and brake carrier hub for the four-wheel brake system. | ||
| View original record | ORIGINAL TO BY: FROM DA. DA2/109.10.22. c. to GG. c. to WAH. c. to HS.✓ HERBERT "SPARK" FOUR WHEEL BRAKES. X4550 We send herewith N.sch.1340 shewing the proposed adjustment on the cams of the front… | ||
| Scan30 | Design standardisation and production of a set of spanners for Mr. Royce's inspection. | ||
| View original record | TO BY. FROM E. c. to C.J. WGR. c. to HS. ZP RECEIVED STAMP: OCT 23 1922 R-R. SPANNERS. X1027 X4783 With reference to the detail drawings you sent us of spanners together with cardboard models which… | ||
| Scan31 | Alternative design for Goshawk 11 cylinder studs to prevent them from coming loose. | ||
| View original record | TO HY. FROM E. c. to GJ. WGR. c. to DH. HS. GOSHAWK 11. CYLINDER STUDS. X4225 Regarding the trouble in connection with Goshawk 11. cylinder studs coming loose by shearing the split pins on the back… | ||
| Scan32 | Design and standardization of a Goshawk sparking plug spanner. | ||
| View original record | TO Mr. FROM E. c. to Mr. WOR c. to HS. SP. ORIGINAL RECEIVED OCT 26 1922 M/124.10.22. GOSHAWK SPARKING PLUG SPANNER. X4083 We send herewith drawing No.LeC 1648 showing the above. This spanner has been… | ||
| Scan33 | Quality of Terry spanners and the decision to produce them as stampings. | ||
| View original record | ORIGINAL TO BY. FROM E. c. to HS. ✓ SPANNERS. X1027 With reference to your By2/P161022., the Terry spanners are not such a good job as we expected, either for finish or shape. Nevertheless Mr. Royce… | ||
| Scan34 | Drawing modification for the Goshawk 11 carburetter to prevent the air valve disc from riding up, including a suggestion from Mr. Royce. | ||
| View original record | TO DY. FROM E. ORIGINAL Hs E2/M24.10.29. 18/2 RECEIVED c. to GY. c. to WSH. c. to HS.✓ c. to F. GOSHAWK 11. - CARBURETTER. X4228 We send herewith drawing No. Lec 1646 shewing the air valve of Goshawk… | ||
| Scan35 | Telegram agreeing to the purchase of an Elverson oscilloscope. | ||
| View original record | POST OFFICE TELEGRAPHS To: Roycar Derby Office of Origin: Chichester T. Postmark: DERBY 25 OC 22 Handed in at: 10-46 am Received here at: 11-9 am No. of Telegram: 21 Words: 13 Message: Clarke ESC 1/T… | ||
| Scan36 | Telegram received by telephone agreeing to the purchase of an E Dawsons Oscilloscope. | ||
| View original record | ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received: 11-15 Date: 26-10-22 To: Roycirc Derby from: Chichester 10-46 Cola Re ESB/1/J 241022 stop. E Dawsons Oscilloscope stop. I agree to… | ||
| Scan37 | Inquiry about successful non-rotating rectifiers for charging chassis batteries with a small alternating current. | ||
| View original record | TO:- EFC. / P.N. } FROM R. X.664. CHASSIS BATTERIES. X.1589. Do you know of a successful rectifier for alternating current which does not require to rotate? for say 1 ampere There is for instance the… | ||
| Scan38 | Modifications to the 40/50 front wheel brakes involving a new Goshawk type joint and steering adjustments. | ||
| View original record | ORIGINAL. TO BY. FROM DA. DA2/M27.10.22. a. to CJ. b. to NH. c. to HS. ✔ 40/50 FRONT WHEEL BRAKES. K9940 We send you herewith N.sch.1343 shewing the new Goshawk type joint which Mr. Royce wishes used… | ||
| Scan39 | Design and implementation of a dimmer switch for the Goshawk 11 headlamps. | ||
| View original record | ORIGINAL TO BJ. FROM DA/EV. DA/EV1/M27.10.22. c. to SG. & BY. X. 4291. RE. DIMMER SWITCH - GOSHAWK 11. X. Replying to your BJ6/H171022., we may say that Mr. Royce has agreed to our making a design for… | ||
| Scan40 | Design of dipping headlights for the Goshawk, comparing a dimmer switch to using side lights. | ||
| View original record | TO RH. FROM R. c.c. to EJ. WOR. c.c. to PM. BT. c.c. to HS. MP. ORIGINAL 3 RECEIVED X.4291. RE. DIMMER. X 4555. We have decided to make the designs for the dipping head lights for the Goshawk. This we… | ||
| Scan41 | The testing and issues found with the Goshawk II magneto ignition system. | ||
| View original record | ORIGINAL He5/T4.10.22. ------------- To R. from Ms. c. to C.J. c. to E. c. to De. c. to By. RE GOSHAWK II- MAGNETO IGNITION. We have been running one of these cars fitted with the Watford magneto.… | ||
| Scan42 | Magneto timing, potential issues, and a recommendation for supplying cars with a pre-prepared magneto setup. | ||
| View original record | -2- Contd. dismantled and erected without requiring much skill. It would, of course, be possible for the magneto to be rotated one complete turn and for the timing to be wrong. This could be easily… | ||
| Scan43 | Test report on the Goshawk II silencer and cutout, detailing issues with noise levels and power output. | ||
| View original record | ORIGINAL To R. from Hs. c. to CJ. c. to E. c. to Do. c. to By. RE GOSHAWK II SILENCER AND CUTOUT. X4269 We have tested a silencer and cutout made to N. Sch. Lec.1304 both on a car and on the test… | ||
| Scan44 | The design and efficiency of various Goshawk engine silencers, including a new design with a cutout. | ||
| View original record | Hs6/T4.10.22. -2- Contd. suffer as regards resfriction in power and restriction in noise. The present standard Goshawk silencer has three diaphragm baffles and the inlet and outlet pipes extend into… | ||
| Scan45 | The advantages and disadvantages of an exhaust cutout system on a 40/50 model. | ||
| View original record | Contd. -3- HSG/T4.10.22. The cutout arranged in a similar manner as the present 40/50 gives us maximum power and maximum noise with the cutout open, and the present standard of silence when it is… | ||
| Scan46 | Test report comparing horsepower output with various silencer configurations at different engine speeds. | ||
| View original record | Test No. | Conditions | Horse power --- | --- | --- | | 1500 | 2000 | 2500 | 3000 1 | Standard silencer | 30.3 | 39.5 | 44.7 | 48.3 2 | With no silencer fitted. | 31.7 | 42.5 | 48.4 | 51.2 3 |… | ||
| Scan47 | Mr. Royce's strict weight limits for the Goshawk car, covering the chassis, body, passengers, and springs. | ||
| View original record | Hs TO BY. FROM DA/EV. c. to R. G. Hs. Sp. c. to LHS. for Sp. & HO. RECEIVED OCT 17 1922 R DA/EV4/MS.10.22. X4261 X4538 RE. GOSHAWK CAR WEIGHTS AND SPRINGS. Mr. Royce is very anxious that we should not… | ||
| Scan48 | The importance of weight-saving on the chassis versus the weight of bodies and accessories. | ||
| View original record | R (2) at all possible, and every ounce of weight saved is of vital importance. Much expense is incurred in keeping the chassis light, and this will be wasted effort if all the weight saved is absorbed… | ||
| Scan49 | Evaluating the performance of the No. 6 Goshawk car, focusing on its steering, control, and unsatisfactory suspension compared to the No. 4 model. | ||
| View original record | To HS. from R. c.c. to CJ. c.c. to Bd. RE. 6. GOSHAWK ED X4261 X4329 X4551 The steering of this car seems quite satisfactory. I have rushed it over rough roads without objectionable shocks reaching… | ||
| Scan50 | Excessive oil consumption and smokey exhaust in Goshawk II engines, detailing a solution by modifying the piston scraper ring. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to HY. ORIGINAL Hs3/L09.10.22. GOSHAWK II. OILING. [strikethrough]X4134[/strikethrough] XC238 X.4224 There have been one or two cases of excessive oil… | ||
| Scan51 | Adopting a bevelled scraper ring for maximum efficiency over other solutions. | ||
| 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… | ||
| Scan52 | Effects of deeper radiators, bigger fans, and compression on water temperature. | ||
| View original record | R.R. 235 A (100 T) (S.P. 846 8-8-19) C. 2400 To HS. from R. c. to CJ. c. to BJ. c. to BY. R DISCOURSES ON DEEPER RADS & BIGGER FANS. ORIGINAL. ALSO EFFECT OF C/R ON WATER TEMP. 40/50 RADS RE.… | ||
| Scan53 | Change of axle ratios on the Goshawk-11 car for demonstration purposes. | ||
| View original record | ORIGINAL. To R. from Hs. c.c. to CJ. c.c. to R. c.c. to Da. c.c. to EY. - c.c. to PH. - c.c. to EP. Hs1/LG10.10.22. GOSHAWK-11 AXLE RATIOS: X4256 At Sales request we have changed the axle ratio on… | ||
| Scan54 | Shock absorber settings and axle ratio for a 6-Goshawk-11 vehicle. | ||
| View original record | To R. from Hs. c. to CJ. c. to BJ. ORIGINAL Hs4/LGL2.10.22. 6-GOSHAWK-11. X4329 X.4256 [struck through] We realise that the shock absorbers on this car are set with too much friction. They were… | ||
| Scan55 | Arrangements to road test the modernised 7-Goshawk-11 car in France after the Paris Show. | ||
| View original record | ORIGINAL. To R. from Hs. c. to CJ. c. to BJ. Hs2/LG12.10.22. 7-GOSHAWK-11. X3609 X4086 It has been arranged that I go to Paris tomorrow in order to try 7-Goshawk-11 under French road conditions after… | ||
| Scan56 | The Goshawk 11 magneto, discussing the choice between magneto and battery ignition systems. | ||
| View original record | To BJ. From Hs. c. to BY. c. to SG. ORIGINAL Note Hs1/LG12.10.22. GOSHAWK 11. MAGNETO. Our recommendation contained in Hs5/T4.10.22. makes it much easier for the customer to fix up the magneto than… | ||
| Scan57 | Adjustment of road spring ratings for cars intended for export markets with rougher roads. | ||
| View original record | R - ROAD SPRING RATINGS (HIGHER) ORIGINAL FOR ABROAD 5% or 10%? TO H.J. FROM R. FEARS R1/26.10.22. c. to WOH. c. to HY. c. to HS. ✓ c. to EH. 'SPOILING THE RIDE' RE. SPRINGS FOR ABROAD. X2628 Y3461… | ||
| Scan58 | Elusive battery ignition trouble observed on production Goshawk chassis. | ||
| View original record | To R & R from EFC. c. CJ. & FN. c. Ry. c. EP. c. Ds. ORIGINAL EFC1/T28.10.22. RE BATTERY IGNITION ON GOSHAWK. We have experienced on one or two of the first 20 production Goshawk chassis ignition… | ||
| Scan59 | Investigating and attempting to rectify ignition coil weakness through improved insulation and paraffin wax treatment. | ||
| View original record | EFC1/T28.10.22. -2- CONTD. natural in the first instance to put this down to coil weakness and this was largely confirmed when on again putting these coils through the same production tests as they… | ||
| Scan60 | Analysis of ignition coil weakness and misfiring related to ballast resistance and spark timing. | ||
| View original record | EFCL/T28.10.22. -3- Contd. as would be expected, in the most unfavourable condition for the ignition, viz. hot condition of engine, and ballast resistance, acceleration or slow running under load with… | ||
| Scan61 | Analysis of ignition coil performance, focusing on ballast resistance, magnetic saturation, and operating voltage. | ||
| View original record | -4- Contd. what we should consider to be excessive, particularly in view of the fact of the smaller output available from the dynamo as compared with the 40/50. We do not mean that the reduction in… | ||
| Scan62 | Analysis of ignition coil performance, comparing the Goshawk and 40/50 engines and experimenting with different secondary winding turns. | ||
| View original record | EFC1/T28.10.22. -5- Contd. circuit) in addition to their own, but it was found that with the amount of ballast which was judged in the first instance to be suitable, the phenomenon could be… | ||
| Scan63 | Analysis of coil performance trials, comparing different winding turns and ballast resistances. | ||
| View original record | EPC1/W28.10.22. -6- Contd. that the reduction in the number of secondary turns was not desirable. In this case, however, this particular coil with a ballast resistance of 15" (as against 50" which… | ||
| Scan64 | Analysis of ignition coil performance, discussing issues with ballast resistance, current draw, and potential misfiring in Goshawk engines. | ||
| View original record | EFCH/T28.10.23. -7- Contd. result having been experienced with two coils. with 30" of ballast they are not immune. The Goshawk coils on the other hand are not immune with the 10" ballast. The actual… | ||
| Scan65 | Ignition coil improvements and variations for the Goshawk chassis, comparing different constructions and turn counts. | ||
| View original record | EFC/T.28.10.23. -3- Contd. In perhaps 9 Goshawk chassis out of 10, driven in the ordinary way, it seems possible that the failure of the nature described would never occur. On the other hand it seems… | ||
| Scan66 | Replacement of thick leaf springs with thin leaf springs, considering cost and performance. | ||
| View original record | R- THE TIME HAS COME TO DITCH THE THICK- 40/50 FRONT SPRINGS ORIGINAL LEAVED R-R POLICY RECEIVED OCT 30 TO - H.R. H.S. FROM R. R1/W/26.10.22. 40/50. LEAF SPRINGS. X2628 Referring to W17/M201022, this… | ||
| Scan67 | Conclusions on chassis design, shock dampers, and tyre pressures for 20.HP and 40.HP models. | ||
| View original record | (2) From our experience we find these conclusions are founded on fact but this is a matter more of degree. Naturally this is what we might have expected, though we did not fore-see that the degree… | ||
| Scan68 | Different types of rectifiers for chassis batteries, recommending the B.T.H. Tungar rectifier. | ||
| View original record | ORIGINAL To R. from EFC. c. to CJ. c. to PN. EFC1/T31.10.22. X.664. X.1589. RE RECTIFIER FOR CHASSIS BATTERIES Answering your R1/M27.10.22 I believe the most successful non-revolving rectifier is the… | ||
| Scan69 | Covering memo for reports on the operation of a Westinghouse Spark & Ignition Tester. | ||
| View original record | To R & E from EPC. c. C.J. & F.H. c. Ey. & I.P. c. Hg. & Da. ORIGINAL EPCS/T31.1st.22. WESTINGHOUSE SPARK & IGNITION TESTER Please find attached copy of my assistants' reports on the operation of the… | ||
| Scan70 | Instructional report on the trial of a Westinghouse Spark-C Ignition Tester. | ||
| View original record | R.R. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No P.B. 44. Customer's No. X July 26th 1922 Trial of Westinghouse Spark-C Ignition Tester. This… | ||
| Scan71 | Instructions and test results for an ignition tester under various spark plug conditions. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: P.B. 44 Customer's No: X. the Ignition Tester. Conditions amounting to:- 1 Open, or short circuit… | ||
| Scan72 | Instructions detailing the operational limitations of an ignition testing instrument when used with spark gaps. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No P.B. Late Customer's No. X July 26th 1922 It will be seen from these results that:- 1. The… | ||
| Scan73 | Instructions for interpreting test results based on flash brilliancy and gap width. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No P.B. 44 Customer's No. X As it is, when testing, it must first be decided what is normal. gap brilliancy Having got that, it is fairly safe to… | ||
| Scan74 | Instructions on the operation and testing of a Westinghouse 'Spark-C' Tester. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFC Order No: AB.58. Customer's No.: 1 20 Oct. 1922 X4548. Westinghouse "Spark-C" Tester. This instrument has been… | ||
| Scan75 | Instructions on the behaviour of spark gaps, high-frequency oscillations, and voltage. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No Customer's No. 7 19 the wider the gap, the brighter will be the glow so long as a spark passes. But if the… | ||
| Scan76 | Instructions for diagnosing spark plug faults using a tester based on the resulting light glow. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6. 11. 18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No Customer's No. 3 19 is conveyed back through the condenser to the HT point under test whilst all the… | ||