Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Accompanying blueprints for an experimental Elliptical Zephyr Piston for a 40/50 Chassis. | ||
| View original record | R.R. 235 s (200 T) (S.F. 674, 22-5-19) G. 2375. To [illegible text] [illegible text] [illegible text] C.c. to Ck. DA/STT2/MS17.11.19. re Elliptical Zephyr Piston 40/50 Chassis Section S.40 - Z. 3221.… | ||
| scan0002 | Cover note for two blueprints of a gudgeon pin for an experimental set of an elliptical Zephyr piston. | ||
| View original record | R.R. 235 B (200 T) (S.F. 674, 22-5-19) G. 2376. [redacted text] D.O. C. to Ch. DA/STT/EW/18.11.19. 40/50 Chassis - Re Elliptical Zephyr Piston Section 5040 - X. 3721. Please receive herewith two Blue… | ||
| scan0003 | Barrington's Zephyr split pistons and the testing of a combination piston with modifications. | ||
| View original record | X.3y21. Extract from R1/G.2.12.19 X.2748. RE PISTONS? X.3754. X.3721 I have not seen the suggestion for Mr. Barrington's Zephyr split pistons. I ought to have done so even if the matter could not bear… | ||
| scan0004 | The testing of a split piston design and a proposal for further experiments. | ||
| View original record | x 3432. Extract from EH5/LG17.LO.19. --------------------- Piston with split on the non-pressure side. A set of these pistons are running on a car, They have run for 450 miles. This set we are running… | ||
| scan0005 | Instruction to hand over three sets of finished pistons with slotted skirts for specific trial chassis. | ||
| View original record | Ms. c. to Hs. c. to Sft. c. to EP. E.F.C. X3Y32 COPY. BY/JH10/H30.10.19. X3Y32. RE PISTONS WITH SLOTTED SKIRTS. Will you please instruct that three sets of finished pistons should be handed over to… | ||
| scan0006 | Requesting to arrange for 25 sets of split pistons to be instructed to the Shops. | ||
| View original record | R R. 235 B (200 T) (S.F. 674 22-5-19) G. 2376. To ~~Wks~~ ~~Ior~~ Dy. from Bn. Copy to ~~Hs.~~ ~~Ck.~~ X.3432 Bn12/W31.10.19. RE SPLIT PISTONS. Further to my Bn8/W311019, will you please arrange for… | ||
| scan0007 | Decision to fit split pistons to all delivered chassis, including the trials cars. | ||
| View original record | R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. x.3432. To Wcr. from Bn. Copy to Cor. PM. Sp. Hy. Ck. BnS/W31.10.19. RE PISTONS ON CHASSES ALREADY DELIVERED INCLUDING TRIALS CARS. Mr. Johnson… | ||
| scan0008 | Design of split pistons and the pinning of piston rings for trials cars. | ||
| View original record | To BN. from R. Copy to CJ. " " WOR. " " EH. " " EP. R2/G1.11.19. 3437 RE TRIALS CARS X.3651. It would appear that we could consider the split pistons as being satisfactory, if we arrange the… | ||
| scan0009 | Methods for continuous oiling of pistons, particularly via connecting rods. | ||
| View original record | Contd. To Bn. from R. -2- R2/G1.11.19. should be pinned on the power side, which is the wall of the cylinder that it is on during the downward stroke. This matter may be very important, as it is… | ||
| scan0010 | Comparing Bentley's split aluminium piston design with an alternative design under testing. | ||
| View original record | To CJ. from EH. c. to R. c. to Bn. c. to Wor. c. to EP. EH6/LG4.11.19. 3Y32 RE SPLIT ALUMINIUM PISTONS. X.3651. With reference to your memo CJ17/E3.11.19, we were aware of Mr. Bentley's split… | ||
| scan0011 | 60-hour test bench results for split silent pistons. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. To R. from EH. Copy to CJ. " " BN. " " E. " " DA. " " EP. EH8/LG4.11.19. 9/32 RE SILENT PISTONS. X.3651. We have run a set of split pistons for 60… | ||
| scan0012 | Continuation page of a memo regarding the expediting of castings. | ||
| View original record | Contd. -2- EH8/LG4.11.19. finished to-morrow. We hope to get castings on Friday - as soon as we obtain the castings they will be pushed through with all possible speed. EH. | ||
| scan0013 | Instructions for supplying pistons and cylinders for specific chassis, and discussing issues with high/low compression engines and liner fitment. | ||
| View original record | X3732 chassis. BY. from EP. c.c. to SIG. " " DH. " " EH. " " WOR. EP3/F4.11.19. With further reference to your instructions to the C.O., BY/JH10/H30.10.19, instructing for three sets of split pistons… | ||
| scan0014 | Problems with machining cylinders and the supply of parts for international and Trials cars. | ||
| View original record | -2- I trust this matter will be definitely made clear, as at present we are having considerable trouble in having to specially machine certain cylinders owing to there being insufficient projection of… | ||
| scan0015 | Production ratio of low and high compression split type pistons for chassis. | ||
| View original record | X3732 Chassis DY. C. to Sft. " " H. " " EH. " " W.O.T. EP/T6/F5.11.19. RE. SPLIT PISTONS. With reference to memo. EP3/F4.11.19, Mr. Cowen has written us this morning stating that he is still unable to… | ||
| scan0016 | The return of the high compression car 1.EX to London for trial runs. | ||
| View original record | EH. X.3651 X.2865 COPY. EP/T11/F5.11.19. RE. HIGH COMPRESSION CAR FOR TRIAL RUNS IN LONDON. Confirming conversation with you today, Mr. Cowen is anxious that 1.EX should be returned to London before… | ||
| scan0017 | Results of a 105-hour engine bench test with split type pistons, including running hours at different RPMs and a summary of failures. | ||
| View original record | To R. from EH. c. to CJ. c. to EN. c. to R. c. to BA. c. to BY. c. to EP. X.8/32 EHR/LG7.11.19. RE SILENT PISTONS - SPLIT TYPE. We have now complete 105 hours running on the Bench with the engine… | ||
| scan0018 | Full throttle engine test detailing seized pistons. | ||
| View original record | Contd. -2- EH1/LG7.11.19. Full Throttle Running. Revs. hours run. 1000 2 1/4 1200 T 9 1/2 1400 5 1500 15 1/2 1600 2 1/4 1700 15 1900 5 2000 7 1/4 At that time the pistons were in very good condition,… | ||
| scan0019 | The testing and analysis of aluminium piston seizure in an engine. | ||
| View original record | Contd. -3- given these pistons a tremendously more severe test than they could ever possibly get in use on the car. One could never imagine an engine on a car running for more than 5 or 10 minutes… | ||
| scan0020 | Piston scoring caused by carbon deposits and recommendations for increasing clearance. | ||
| View original record | Contd. -4- EHL/LG7.11.19. This line corresponds with the amount of pistons run out. This, as a rule, is not alround the pistons but only in local places. The only medium we know which could cause this… | ||
| scan0021 | Piston seizure, recommending design alterations and cross-testing between aero and car engines. | ||
| View original record | Contd. -5- seizure under normal running conditions. We consider that the seizures we have had on the bench test are something quite apart from the fact that the pistons were split. We do not consider… | ||
| scan0022 | Piston clearances measured at various intervals during a 165-hour bench test. | ||
| View original record | Contd. -6- EH1/LG7.11.19. ============= 1. Bench Test - 165 hours. 4 pistons have run 105 hours. 2 pistons have run 25 hours. The condition of the pistons after this run is as follows:- We measured… | ||
| scan0023 | Piston testing, focusing on clearance increases, collapsing, and comparing split type with ram type pistons. | ||
| View original record | Contd. -7- It will be seen that the minimum clearances have increased on the average .002" during the run. It is very difficult to say how much of that is wear and how much is the piston collapsing… | ||
| scan0024 | Modifications to the slotted skirt type of high and low compression pistons. | ||
| View original record | X 3732 R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. BY/JM4/H. 7. 11. 19. Mr. Skelton. C.C. EH. Copy for Mr. Humpston. C.C. HS. C.C. HF. C.C. EF. ------------------------- RE SLOTTED SKIRT TYPE… | ||
| scan0025 | Hand-drawn sketch of a piston with dimensional annotations. | ||
| View original record | [ "R.R. 259A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13.", "4.460 -1", "4.480", "PARALLEL", "TAPER", "4.494", "4.497 - 1/2", "TAPER", "4.498 - 1/2", "H" ], | ||
| scan0026 | The loan and modification of the '1 EX' experimental car for a demonstration to agents. | ||
| View original record | X.3651. 3732 To R. from EH. * X.3413. X.2565. EH4/LG7.11.19. c. to CJ. X.3651. X.3715. c. to BN. ___________________________________ RE 1. EX. CAR. Mr. Cowan has asked to borrow 1 EX Car to shew to… | ||
| scan0027 | Proposal to resolve a piston supply crisis for post-war chassis caused by a moulders' strike. | ||
| View original record | R.R. 235a (500 T) (S.D.408. 26-4-17.) Bm. 2/156/13. COPY. To-R.R. from CJ. Copy-to-BJ. WGR. Bn. GT. PN. H. Gx. BP. Re Post-War Chassis. X.3437 If it were not for the moulders' strike, we should have… | ||
| scan0028 | Instructions for handling customer deliveries of vehicles with sub-standard pistons due to a moulders' strike. | ||
| View original record | - 2 - in the following order:- (a) Engines which are under 2-LW standard. (b) Engines of 2-LW standard. 4. No further cars are to leave coachbuilders unless they have engines of 2-LW standard. 5. No… | ||
| scan0029 | Piston design modifications, such as the 'letter-box slit' and oval grinding, to prevent splitting. | ||
| View original record | To BN. from R. Copy to CJ. " " EH. " " EP. " " WOR. R1/G10.11.19. RE PISTONS. X.3651.3432 It is necessary that the bottom pistons ring is pinned on the power side. The vertical split in the piston… | ||
| scan0030 | The testing of split type pistons, detailing performance, comparisons, and knock issues. | ||
| View original record | X3732 Chassis BN from EP. c. to BY. c. to EH. c. to WOR. COPY EP9/F18.11.19. RE. TESTS OF SPLIT TYPE PISTONS. Two tests of the latest type split pistons have been run on test cars, each set having run… | ||
| scan0031 | Confirming authority to proceed with manufacturing split pistons and converting existing castings. | ||
| View original record | R R. 235 B (200 T) (S F. 674 22-5-19) G 2376. To By. from Bn. X.3732 Copy to Ck. EP. Bn1/W22.11.19. RE SPLIT PISTONS. Confirming my conversation with you on the telephone, I attach herewith copy of… | ||
| scan0032 | Typed copy of a telegram from Royce regarding piston design, engine testing and logistics for the 1 EX chassis. | ||
| View original record | X.3732 Copy to Wor Fvw Bv. Hs. Ck. EP. Nov. 22nd 1919. X.2665 X.3413 BARRINGTON AGREE TO DELIVER CHASSIS WITH SPLIT PISTONS SIM-ULTANEOUSLY RUNNING CONTINOUS HIGH SPEED TEST ON ENGINE stop DESIGN OF… | ||
| scan0033 | Covering note for the X.3732 Split Piston Standardisation Sheet. | ||
| View original record | To R. from EH. CJ. EH/AT26.11.19. X.3732.-SPLIT PISTON. Herewith please receive Standardisation Sheet for the above pistons. Will you kindly remark upon, sign and return at your convenience. EH/AT. | ||
| scan0034 | Recommendation regarding the turning of a band of metal on split type pistons. | ||
| View original record | BY. from EH. EFC x.3/832 EH5/LG28.11.19. RE PISTONS. With reference to split type pistons, we recommend that the band of metal above the split portion should be turned clear. We see no reason why this… | ||
| scan0035 | Request for a car with split type pistons for experimentation at West Wittering. | ||
| View original record | To EH. from R. c. to CJ. c. to BN. E.F.C. COPY. X.3432 R1/G29.11.19. X.3432 RE CAR FOR WEST WITTERING. X.2631 If we are not making hopeful progress, by the time you receive this, with the plunger… | ||
| scan0036 | Fitting of split type pistons to the 1.EX car and its scheduled journey. | ||
| View original record | X.3732. Extract from EH4/LG1.12.19. RE 1.EX CAR. X.2565. X.3732. We are fitting on to 1.EX, a set of thessplit type pistons. This car will leave here on Wednesday morning. It will be at West Wittering… | ||
| scan0037 | Potential improvements to the design of split-type pistons. | ||
| View original record | To BN. from EH. c. to DA. c. to BY. c. to EP. ----------- EH3/LG1.12.19. S-------- X.3732. SPLIT TYPE PISTONS. --------------------- As it is possible that a considerable number of split type pistons… | ||
| scan0038 | Over-oiling issues with Car 1.EX and subsequent modifications to the pistons, clutch, wiring, and thermometer. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X3732 EH3/LG3.12.19. To R. from EH. c. to CJ. c. to BN. c. to E. c. to DA. ---------- X.2565. RE CAR 1.EX. X.3732. ------ We find that when we have… | ||
| scan0039 | From EH to R detailing modifications and issues with car 1.EX, including over-oiling and other updates. | ||
| View original record | R R. 235 a 100 T/ S F. 575. 16-4-19) G 2354. X.3732 To R. from EH. EH3/LG3.12.19. X.2565. RE CAR 1.EX X.3732. We find that when we have fitted the standard split pistons there is still a tendency for… | ||
| scan0040 | Agreeing to a proposal to modify split type pistons. | ||
| View original record | R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X.3732 To Ds. from Bn. Copy to Ck. Bn10/W41219. X.3732 RE SPLIT TYPE PISTONS. With reference to EH3/LG1.12.19, I quite agree with this proposal. We… | ||
| scan0041 | The machining of existing piston castings for a split piston arrangement. | ||
| View original record | To EH from DA. C. to RHC. [crossed out] Pistons x3732 DA5/CB5-12-19. With reference to the question of machining some existing piston castings to make them more suitable for the split piston… | ||
| scan0042 | Cover letter for a standardisation sheet regarding split type pistons. | ||
| View original record | To R. from EH. CJ. By. En. Wor. Da. PN. EP. X3732 EH/AT10.12.19 X.3732.- STANDARDISATION SHEET FOR SPLIT TYPE PISTONS. Herewith please receive completed standardisation sheet for the above. This is… | ||
| scan0043 | Standardisation document for a split, oval ground piston designed to eliminate piston knocks. | ||
| View original record | R.R. .J55 (3 H) (S F. 621, 2-5-19) C. 2361. STANDARDISATION of CHASSIS PARTS. Date 22.11.19. Description of Parts. Split Piston. Oval ground, split axially and circumferentially giving uniform… | ||
| scan0044 | Table of compression and permanent set measurements for a split type piston under varying weights. | ||
| View original record | SPLIT TYPE PISTON. X3/82 WEIGHT IN LBS | COMPRESSION. | PERMANENT SET 26 | .00425 | nil 36 | .0055 | — 46 | .007 | — 56 | .009 | — 66 | .011 | .001 76 | .0115 | .001 86 | .013 | .001 96 | .014 | .001… | ||
| scan0045 | Tests on standard and split pistons to show deflection with various loads. | ||
| View original record | X3732 Tests on standard & split piston to show deflection with various loads. We have loaded a standard piston in manner as sketched & a split piston as shewn below. Deflection Load in LBS | Standard… | ||
| scan0046 | Instructions sheet detailing test data for Standard Pistons under various loads measured in LBS. | ||
| View original record | RR 6 (500 F 550 9-4-19) MP 204991 X3732 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. Customer's No. 19 Load in LBS | Standard Piston | Split Piston 864 | .009 904 | .009 944 | .0095 984 | .010 1024… | ||
| scan0047 | Standardisation of split pistons, production limitations due to a strike, and an investigation into an 'illusive' engine knock. | ||
| View original record | To BJ. from Bn. c. to Wor. Bn7/ZW6.12.19. X.3732.-STANDARDISATION SHEET FOR SPLIT PISTONS. With reference to BJ2/DB41219, the policy regarding pistons has been very clearly laid down by CJ. in his… | ||
| scan0048 | Test report on the performance of split type pistons, noting some knocking issues. | ||
| View original record | BN. from Ep. Copy to BY. " " EH. " " WOR. ----------------- EP9/F18.11.19. RE TESTS OF SPLIT TYPE PISTONS. ------------------------- Two tests of the latest type split pistons have been run on test… | ||
| scan0049 | Faults, such as increasing clearances, found in split-type pistons and potential design improvements. | ||
| View original record | X 3732 To R. from Hs. c. to CJ. c. to BN. c. to E. c. to Da. c. to Wor. c. to EP. ---------------- X.3732. RE PISTONS. ---------------- Hs3/LG12.12.19. ---------------- X.2748. X.3754.… | ||
| scan0050 | Overcoming piston knocks, considering split pistons and the potential use of cast iron over aluminium due to production issues. | ||
| View original record | R R. 235 a (100 T) (S.F 846 6 8-19) G. 2460 Contd. -2- Hs3/LG12.12.19. best thing we know of to overcome piston knocks, we think that the design of those pistons, as split pistons, should be the best… | ||
| scan0051 | The pros and cons of cast iron versus aluminium pistons, considering seizure risk, weight, and engine silence. | ||
| View original record | Contd. -3- Hs3/L012.12.19. The most definite argument for abandoning the cast iron pistons was because the risk of seizure was so very great, owing to the fact that in order to avoid piston knocks,… | ||
| scan0052 | The reliability of aluminium pistons versus cast iron pistons, citing issues at other car companies. | ||
| View original record | Contd. -4- Hs310/12.12.19. eventually obtain a silent reliable aluminium piston but we think at the same time that we should not abandon the cast iron piston because there is the remote chance that… | ||
| scan0053 | Testing letter box slot and Zephyr type pistons, detailing issues with clearances, seizing, and knocking. | ||
| View original record | To R. from Hs. c. to CJ. c. to BN. c. tp E. c. to DA. X3432 Hs5/LG16.12.19. X.3732. RE PISTONS. X.3751. We have tested present standard pistons with a letter box slot. We find that with the letter box… | ||
| scan0054 | Continued memo fragment describing pushing components into a cylinder bore. | ||
| View original record | Contd. ----- -2- --- HS5/EG16.12.19. ----------------- until we have to push them into the cylinder bore. Hs. | ||
| scan0055 | Piston design challenges, comparisons with Bentley pistons, and experiments with modifying them. | ||
| View original record | To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to EP. (Handwritten) X3Y32 Hs5/LG29.12.19. X.2748. - RE PISTONS. X.3732. (Handwritten) X.3754. (Handwritten) X.3774 (Handwritten) X3774 The… | ||
| scan0056 | Piston experiments, discussing different types, issues like seizure and knocking, and future testing plans. | ||
| View original record | Contd. -2- Hs5/LG29.12.19. non-pressure side to form the spring. These look very promising. If they collapse, however, in the same way as the present ones, we might try fixing a cantilever spring off… | ||
| scan0057 | Recommendation to adopt an improved split aluminium piston design, drawing N. 2820. | ||
| View original record | R.R. 235 A (100 T) (S.F 846 6-S-19) G. 2460 X 3732 To Bn. from Hs. c. to Wor. c. to By. c. to Da. c. to EP. Hsl/LG17.1.20. -------- X.2748. X.3732. X.3754. -------- X.3751. - RE ALUMINIUM PISTONS.… | ||
| scan0058 | Change from aluminium to cast iron pistons and their performance. | ||
| View original record | -2- Hsl/LEI 17.1.20. Contd. should be to get several sets of cast iron pistons as soon as possible. We should fit sets of these pistons to the London Trials Car and Mr. Hanbury Cars. They have now run… | ||
| scan0059 | Modified design for an aluminium split piston. | ||
| View original record | To Ck/AT. from Hs.z X.3432 Hs6/LG19.1.20. X.3751.-MODIFIED TYPE OF ALUMINIUM SPLIT PISTON. X 3432 This piston is similar to the split piston we are using except that the design has been gone over,… | ||
| scan0060 | Challenges and decisions surrounding the bulk production of pistons, including a newly redesigned split piston. | ||
| View original record | X 3432 To R. from Bn. Copy to CJ. Copy to Wor. Copy to Da. Copy to Hs. Copy to Ck. Bn14/W21:1.201 X.3732. X.3754. - RE Bulk Production of Pistons. X.3751. ------ ------- It is thought by Mr. Wormald… | ||
| scan0061 | Gas leakage past split type pistons, detailing the resulting noise, inefficiency, and fumes entering the vehicle body. | ||
| View original record | EH. from EP. c. to Rn. c. to BY. c. to Da. c. to E. CK. X.3432 EP19/F6.2.20. X.3432 RE LEAKAGE PAST THE PISTONS. X.1858 We have been concerned with the way in which the present split type pistons are… | ||
| scan0062 | Expressing dissatisfaction with dynamometer power and compression readings. | ||
| View original record | Contd. -2- We are also not happy with our dynamometer power and compression readings. EP. | ||
| scan0063 | Extract from a Test Department report regarding piston rattles and the status of chassis with various piston types. | ||
| View original record | X3732. Extract from Bn1/W22.3.20. X.2748. RE PISTON RATTLES. X.3732. The Test Dept. reported that 33 chassis had been delivered and were now fitted with the old-type non-split aluminium pistons which… | ||
| scan0064 | Cylinder bore wear caused by aluminium versus cast iron pistons. | ||
| View original record | X.3732 To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to EP. c. to Wor. Hsl/LG12.4.20. X.2748. RE PISTONS. X.3732* During our last visit to W.W., Mr. Royce raised the question re. the wear… | ||
| scan0065 | Piston material, comparing cast iron to aluminium, and related issues like wear, seizure, and decarbonisation. | ||
| View original record | R.R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 Contd. -2- Hs1/LG12.4.20. miles, has worn .007". As the wear is generally consistent on all six cylinders the most probable cause for the variation one… | ||
| scan0066 | Piston troubles, including knock in aluminium pistons and a repair procedure, along with tests on new split cast iron pistons. | ||
| View original record | R.R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 Contd. -3- Hsl/LG12.4.20. one /considers the labour charges of to-day. As regards piston troubles one the present standard cars fitted with aluminium… | ||
| scan0067 | Piston testing, focusing on clearances, piston knock, and gas leakage. | ||
| View original record | Contd. -4- Hsl/LG12.4.20. went in a matter of .005" to .006". On the next set we hammered them before we machined them to get rid of the internal strains. We found them that the pistons remained up to… | ||
| scan0068 | Analysis of piston ring performance regarding gas sealing, oil control, and crankcase vapour. | ||
| View original record | Contd. -5- 2 Hs1/LG12.4.20. fitting portion of the piston assisted in holding the gas. The gas which leaks past a piston gets by the stop or joint than round the band between the rings to the next… | ||
| scan0069 | Comparison of horsepower for engines with cast iron versus aluminium pistons, and a test showing HP with different numbers of rings. | ||
| View original record | 12.4.20. COMPARISON OF HP. TAKEN ON A STANDARD ENGINE FITTED WITH CAST IRON AND ALUMINIUM PISTONS. H.P. ALUMINIUM. CAST IRON. R.P.M. Cut-out open. Closed. Cut-out open. Closed. 2250 86 75 84.5 73 2000… | ||
| scan0070 | Inquiry from Walker M. Levett Company regarding the history of slotted pistons. | ||
| View original record | 43732 THE PIONEER ALUMINUM ALLOY PISTON MANUFACTURER Walker M. Levett Company ALUMINUM, BRASS & BRONZE FOUNDERS CABLE ADDRESS: LEVETTAL, NEW YORK 415-421 EAST 23RD ST. NEW YORK ESTABLISHED 1904… | ||
| scan0071 | Proposed suggestions to cure over-oiling with the silent ram piston on the 40/50 HP chassis. | ||
| View original record | X 3439 To EH. from E. Copy to CJ. " " BN. " " DA. " " EFC. RE SILENT RAM PISTON. X.3715. The following suggestions are proposed to cure over-oiling with the silent ram piston on the 40/50 H.P. chassis… | ||
| scan0072 | Potential piston and cylinder modifications, including baffle plates and a plunger design. | ||
| View original record | W H 235 A (100 T) (S.E. 575. 16-4-19) G. 2354 -2- E6/G24.11.19. Contd. It is believed that this method of getting the oil away has been tried before at the Works, but it is not remembered with what… | ||
| scan0073 | The specifications for three experimental silent ram pistons intended for the 40/50 HP chassis. | ||
| View original record | R.R. 235 A (100 T) (S.F. 575. 16-4-19) G. 2354. To DA. from E. Copy to CJ. " " BN. " " EH. " " EFC. RE IMPROVED SILENT RAM PISTON. 40/50 H.P. CHASSIS. E1/G27.11.19. X.3739. We have sent under separate… | ||
| scan0074 | Modifications to an oil collecting groove and a C piston, and requesting materials for tests. | ||
| View original record | R.R. 235 m 200 T) (S.F. 674. 22-5 19) G. 2876. To DA. from E. -2- El/G27.11.19. impracticalm and plenty of holes should be drilled through the oil collecting groove in plece of it, The ram of C piston… | ||
| scan0075 | Testing Ram Type silent pistons, detailing issues with over-oiling and piston knock. | ||
| View original record | To R. from Hs. c. to CJ. c. to BN. c. to E. c. to DH. X.3739 Hs3/LG9.12.19. <3715> RE SILENT PISTONS - RAM TYPE. x3739 The six pistons of the ram type, which, when fitted to 1.EX gave us trouble with… | ||
| scan0076 | Urgent fitting of pistons for a car scheduled for a 10,000-mile run in France. | ||
| View original record | Contd. -2- Hs3/LC9.12.19. -------------- a ram with three rings, the drawings for these are promised for tomorrow. We anticipate it will be 10 to 14 days before we can get a set of these improved… | ||
| scan0077 | Providing a status update on five experiments related to pistons, starter gear, brake shaft, and speedometer drive. | ||
| View original record | x.3739. (4 To EFC/Mrs Twedell from DA/STT. DA/STT3/CB10-6-20 The following is the position of experiments about which you have been inquiring:- X3739 - Piston to LeC.1163. The details for this were… | ||
| scan0078 | Effectiveness and drawbacks of split aluminium pistons from the Aerolite Piston Co. | ||
| View original record | X.3757 chassis To GE. from Bn. Copy to-Mr. Hs. CR. BnS/WS.11.19. RE SPLIT ALUMINIUM PISTONS. With reference to your note CJ17/E31119, we have known of the type of piston to which you refer, and some… | ||
| scan0079 | Testing standard 'letter box slot' pistons and special 'Zephyr' pistons, detailing issues with clearances and knocking. | ||
| View original record | To R. from Hs. c. to CJ. c. to BN. c. to E. c. to DA. X 3451 Hs5/LG16.12.19. X.3732. X.3751. RE PISTONS. We have tested present standard pistons with a letter box slot. We find that with the letter… | ||
| scan0080 | Typed page fragment discussing the process of fitting components into a cylinder bore. | ||
| View original record | Contd. -2- Ms5/E:16.12.19. until we have to push them into the cylinder bore. Hs. | ||
| scan0081 | Piston designs, including the Zephyr split piston and potential improvements using steel springs. | ||
| View original record | X 3751 Extract from R1/G22.12.19. X.2748. RE PISTONS. X.3754. x3751. x 3776 x 3765 X.3751. I have not seem the suggestion for Mr. Barrington's Zephyr split piston. I ought ot have done so, even if the… | ||
| scan0082 | 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… | ||
| scan0083 | List of new parts fitted to a car intended for a 10,000-mile run, with accompanying remarks. | ||
| View original record | X.3751 Extract from Hs2/LG5.1.20. X.3743. - RE CAR TO RUN 10,000 MILES. X.3647. This car will leave here on Wednesday. It is fitted with the following new parts - New parts fitted. | Remarks. 7. New… | ||
| scan0084 | Request for a complete set of the latest type of aluminium pistons for a 10,000-mile chassis test. | ||
| View original record | EH. c.c. to BN. X-3751 EP/T13/F7.1.20. RE. LATEST TYPE ALUMINIUM PISTONS. With reference to the decision arrived at at the conference yesterday, we should be glad if you could let us have one complete… | ||
| scan0085 | The conversion of condemned solid pistons to a split type by splitting and stretching. | ||
| View original record | Sft. from EP. C BY. C Hs. X3757 EP1/015.1.20. Re. Converting Solid Pistons to Split Type by Splitting and Stretching. Mr. Hives points out that it is in order for us to use solid pistons as above… | ||
| scan0086 | Recommendation to adopt an improved design of split aluminium pistons, referencing drawing N. 2820. | ||
| View original record | [Handwritten top center: X.3457] R R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 To Bn. from Hs. c. to Wor. c. to By. c. to Da. c. to EP. ---------- Hs1/LG17.1.20. ---------s-------- X.2748. X.3732.… | ||
| scan0087 | Continued discussion on fitting cast iron pistons to specific cars and the expected performance differences compared to aluminium pistons. | ||
| View original record | R.R. 235 a (100 T) (S.T 846 6 8-19) G. 2460 -2- Hsl/LB 17.1.20. Contd. should be to get several sets of cast iron pistons as soon as possible. We should fit sets of these pistons to the London Trials… | ||
| scan0088 | Instruction memo reporting on the performance of experimental pistons, noting increased vibration in a demonstration car. | ||
| View original record | R.R. 238 (24 B) (PP. 776. 26.3.13) E.P. 3883. E.H. X.5751 Dloase note car to enter 12.noon 19/ YCP 19/1/20 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Col Harker. (for Mr Platford). 19-1-20 19 Order No.… | ||
| scan0089 | Modified type of split piston and its comparison to the current design. | ||
| View original record | To CK/AT. from Hs. X.3451. Hs6/LG19.1.20. X.3451. Modified Type Split Piston. X.3432 This piston is similar to the present split piston we are using except that the design has been gone over, bearing… | ||
| scan0090 | Bulk production of pistons, material constraints, and a re-designed split piston. | ||
| View original record | R.R. 235 A (100 T) (S.F. 246. 6-8-19) G. 2460. X 3451 2 To [s]H.[/s] from Bm. (Handwritten 'Mr.' above 'H.') Copy to CG. Copy to [s]Wdr.[/s] Copy to Bm. Copy to GT. Copy to Ck. Hn14/W21.1.20. [s]X… | ||
| scan0091 | The delayed standardization of a modified aluminium belt piston pending a 10,000-mile test run. | ||
| View original record | R R 235 B (200 T) (S.F. 674. 22-5-19) G. 2376. X.3451 To Wor. from Hs. Hs/AT27.1.20. By. Bn. Da. EP. PN. X.3751.—MODIFIED TYPE OF ALUMINIUM BELT PISTON. Will you kindly note that the standardisation… | ||
| scan0092 | Unreliability of current pistons and the prospects of a modified aluminium split piston design. | ||
| View original record | Hs. from EP. c. to WOR. c. to BY. c. to Bn. X 3751 EP10/F27.1.20. X.3751 - MODIFIED TYPE OF ALUMINIUM SPLIT PISTONS. With reference to your Hs/AT27.1.20, I think the position of this job should be… | ||
| scan0093 | Providing design specifications for a split aluminium piston for the 40/50 HP chassis. | ||
| View original record | X.3751 To Da. from E. Copy to CJ. " " Bn. " " Ck. " " Hs. E4/G28.1.20. X.3751. RE SPLIT PISTON IN ALUMINIUM. 40/50 H.P. CHASSIS. In reply to your memo Da17/CB20.1.20, I am directed by Mr. Royce to… | ||
| scan0094 | Continuation of a discussion regarding proposed modifications to an aluminium piston design. | ||
| View original record | R R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460 Contd. -2- E4/G28.1.20. 5 Contd. He would also like a corresponding amount added below the piston pin so that the aluminium piston will conform more to the… | ||
| scan0095 | Letter discussing vehicle testing feedback, mileage targets, piston knock issues, and a comparison with another car. | ||
| View original record | X.3757 Extract from letter to Maddocks 28.1.20 Contd. -3- is intended to go at the rear end of the spring and to be held on by the present safety bolts. We are carrying out similar test at Derby to… | ||
| scan0096 | Typed report on the performance and condition of a car chassis, detailing various mechanical observations and mileage. | ||
| View original record | [Header Top Left] R.R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 [Header Top Center, Handwritten] X.3751 [Header Top Center, Handwritten] X3743-2EX. Chassis Contd. -2- and back. Car still running very… | ||
| scan0097 | Progress report on a 10,000-mile test of the latest type of split aluminium pistons. | ||
| View original record | X.3757 WH. from EP. c. to Dn. c. to HCR. EP1/F29.1.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis No. 53-CW - 294 miles. Total miles run since pistons… | ||
| scan0098 | Progress report on a 10,000-mile test of the latest type of split aluminium pistons. | ||
| View original record | EH. from EP. c. to Bn. c. to Wor. CK X.3757 EP1/F29.1.20. X.3757. RE 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. X.3644 Yesterdays' run on chassis No. 53-CW - 294 miles. Total miles run… | ||
| scan0099 | Recommendation on the machining process for improved type OD split pistons. | ||
| View original record | BY from Hs. C.R, c. to R. X.3457 Hs1/LG30.1.20. X.3457 IMPROVED TYPE OD SPLIT PISTONS. * We recommend that in the machining of these pistons they should be located so that we always get a correct… | ||
| scan0100 | The proposed modification to the piston slot width and updating the relevant drawings. | ||
| View original record | X.3751 Ea. from BY. c. Hs c. Hn. C.R. BY11/P30.1.20. X.3751 CHASSIS - RE PROPOSED MODIFIED PISTON. X.3743 Referring to the width of slot which we are cutting circumferentially round the piston, there… | ||
| scan0101 | Interim report on the 10,000-mile test of latest type split aluminium pistons. | ||
| View original record | X3751 EH. from EP. c. to Bn. [Struck through] c. to WOR. [Struck through] EP1/F30.1.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run (chassis 53-CW) - 466 miles. Total… | ||
| scan0102 | The 10,000-mile test of the latest type of split pistons, noting elusive engine knocks. | ||
| View original record | EH. from EP. c. to Bn. c. to WOR. [Struck through] x3757 EP3/F31.1.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT PISTONS. Yesterday's run on chassis 53-CW - 488 miles. Total miles run since pistons… | ||
| scan0103 | 10,000 miles test of split aluminium pistons, noting mileage and a piston knock issue. | ||
| View original record | Hs. from EP. C. to Bn. C. to WOR. X3757 .EP13/F2.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Week end run on chassis 53-CW - 380 miles. Total miles run since pistons fitted -… | ||
| scan0104 | Test report on the latest type of split aluminium pistons for chassis 53-CW, noting mileage and an audible piston knock. | ||
| View original record | X3757 Hs. from EP. c. to Bn. c. to WOR. EP8/F3.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 53-CW - 435 miles. Total miles run since pistons fitted -… | ||
| scan0105 | Progress report on a 10,000-mile test of the latest type of split aluminium pistons. | ||
| View original record | Hs. from EP. c. to Bn. c. to WOR. X.3751 EP6/F4.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 53-CW - 440 miles. Total miles run since fitting of… | ||
| scan0106 | List of items and modifications to be fitted to a trials car chassis for America. | ||
| View original record | X.3751 X.3719. Trials Car for America. Extract from En3/W4.2.20. With reference to EP5/F24.1.20, I think the following items should be fitted to this chassis:- The numbers are the same as quoted in… | ||
| scan0107 | Test report on the performance of the latest type of split aluminium pistons. | ||
| View original record | Hs. from EP. c.c. to Bn. [struck through] c.c. to WOR. [struck through] X3751 EP7/F5.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 53-CW - 418 miles.… | ||
| scan0108 | The 10,000 miles test of latest type split aluminium pistons. | ||
| View original record | x3751 Hs. from EP. c. to Bn. c. to WOR. EP3/F6.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 53-CW - 408 miles. Total miles run since pistons fitted -… | ||
| scan0109 | The 10,000-mile test of the latest type of split aluminium pistons, detailing engine knock issues. | ||
| View original record | x3751 Hs. from EP. c. to Bn. c. to WOR. EP2/F7.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 53-CW - 249 miles. Total miles run since pistons fitted -… | ||
| scan0110 | The 10,000 miles test of the latest type of split aluminium pistons. | ||
| View original record | COPY. | ||
| scan0111 | Providing a mileage update for the 10,000-mile test of the latest type of split aluminium pistons. | ||
| View original record | Hs. from EP. C. to BN. C. to WOR. X.3751 EP9/F10.2.20. RE.10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 36-TW - 474 miles. Total miles run since pistons fitted -… | ||
| scan0112 | Daily log report from February 1920 detailing vehicle maintenance, repairs, and performance. | ||
| View original record | X.3751 11/2/20 X.3743. REPORT ON 2.EX 5.2.20. TO 11.2.20. X.3751. X.3461. Thursday 5.2.20. Had a very good run to-day from Arles to Le Canadel. A very light piston knock on starting up which soon… | ||
| scan0113 | Daily log of vehicle performance, maintenance, and issues encountered during road tests. | ||
| View original record | Contd. -2- them to stick in guides, Brushes were cleaned and trimmed up and for the time being are O.K. New parts of shock absorbers painted. Air leak cured from screw in top of petrol tank. Monday.… | ||
| scan0114 | Progress report on a 10,000-mile test of latest type split aluminium pistons, noting mileage and audible knocks. | ||
| View original record | x3751 Hs. from EP. e. to BN. (e. is crossed out) e. to WOR. (e. is crossed out) EP5/F11.2.20. * RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. (Underlined) Yesterday's run on chassis… | ||
| scan0115 | 10,000-mile test of the latest type of split aluminium pistons, detailing a persistent engine knocking issue. | ||
| View original record | X 3757 Hs. from EP. c. to BN. [text struck through] c. to WOR. [text struck through] EP5/F12.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on chassis 36-TW - 336… | ||
| scan0116 | 10,000-mile test of the latest type of split aluminium pistons. | ||
| View original record | x3751 Hs. from EP. c. to Bn. c. to WOR. EP8/F13.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Yesterday's run on 36-TW - 320 miles. Total Miles run since pistons fitted - 5750 "… | ||
| scan0117 | Developed piston knock in chassis 1.TW and its subsequent repair. | ||
| View original record | R R 235 A (100 T) (S F 846 6-8-19) G. 2460 Hs. from EP. C.K. X3757 EP3/F13.2.20. X.3757 RE. DEVELOPED PISTON KNOCK ON CHASSIS 1.TW. With reference to the above new chassis delivered to London, which… | ||
| scan0118 | Elusive engine knock during a 10,000-mile test of the latest type of split aluminium pistons. | ||
| View original record | X.3757 Hs. from EP. c. to Bn. c. to Wor. EP15/F14.2.20 X.3647. RE 10,000 MILES TEST OF LATEST TYPE SPLIT X.3751. ALUMINIUM PISTONS. Yesterday's run on chassis 53-CW 260 miles. Total miles run since… | ||
| scan0119 | 10,000-mile test of the latest type of split aluminium pistons, noting issues with elusive knocks. | ||
| View original record | x.3751 Hs. from EP. c. to Bn. c. to WOR. EPL/F16.2.20. RE. 10,000 MILES TEST OF LATEST TYPE SPLIT ALUMINIUM PISTONS. Week end run on chassis 53-CW - 187 miles. Total run since pistons fitted - 6197 "… | ||
| scan0120 | The testing of the latest type of split aluminium pistons and the investigation of elusive knocks. | ||
| View original record | x3751 Hs. from EP. EP5/F18.2.20. RE. LATEST TYPE SPLIT ALUMINIUM PISTON TESTS. We have now carried out the changeover as proposed in our last report EP1/F16.2.20, i.e., the cylinders and pistons… | ||
| scan0121 | The mileage testing of improved split pistons and their effectiveness in overcoming piston knock. | ||
| View original record | X.3757 To R. from Ms. c. to CJ. c. to Bn. c. to Da. c. to E. c. to EP. Hs5/LG20.2.20. _______ X.3751. RE PISTONS. X.3429. ------- ------- We have been running several sets of the improved split… | ||
| scan0122 | Investigation into an elusive engine knock, potentially caused by piston or connecting rod side-play. | ||
| View original record | Contd. -2- Hs5/LG20.2.20 each cylinder and running with the extra oil on the whole time until the cylinders are flooded with oil. We get this same light knock with the solid aluminium pistons as well… | ||
| scan0123 | Arrangement to provide a production car chassis for experimental purposes. | ||
| View original record | Hs. c. to Bn. c. to Mr Cowan. [Handwritten] A C.K. X.3757 EP/T18/F23.2.20. X 3054 [crossed out] RE PRODUCTION CAR FOR EXPERIMENTAL WORK. With reference to the above, and with regard to the… | ||
| scan0124 | Daily report on car 2.EX detailing runs, mechanical failures, and repairs from 19-02-1920 to 25-02-1920. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460 C.K. X.3787 25/2/20 X.3743 REPORT ON 2.EX FROM 19-2-20 to 25-2-20. Thursday - 19-2-20 have had a good run to Marseilles and back today with three up and… | ||
| scan0125 | Adoption of aluminium pistons and investigating an engine knock issue. | ||
| View original record | To HS. from R. Copy to C.J. " " BN. " " BA. " " CK. COPY RECEIVED 4 III 1920 X3757 R1/G26/2/20. X2446 PISTON (SPLIT ALUMINIUM.) y 751 X 3559 We are pleased that the pistons are shaping well. I should… | ||
| scan0126 | Letter to Maddocks regarding rattling pistons on the 2EX chassis, suggesting carbon buildup as the cause and requesting an inspection. | ||
| View original record | X.3757. Expl: Dept: Rolls-Royce Ltd., Derby. X.3443-2EX chassis x.3757 3.3.20. Dear Maddocks, With reference to the pistons rattling on your car, if you get the opportunity, I should lift the… | ||
| scan0127 | Adoption of split aluminium pistons for repair cars and investigating causes of engine knock. | ||
| View original record | To Hs. from R. c. to CJ. c. to Bn. c. to Dn. c. to Ck. X.3751 R1/026.2.20. X.2748 RE SPLIT ALUMINIUM PISTON. X.3751 X.3559 X.3757 We are pleased that the pistons are shaping well. I should like to… | ||
| scan0128 | Elusive engine knocks found in cars with the latest type of aluminium split pistons. | ||
| View original record | Hs. to Bn. C.H. X 3451 EP3/F2.3.20. X.3451 RE LATEST TYPE ALUMINIUM SPLIT PISTONS. The Demonstration car was given its weekly test by Mr. Maddocks yesterday, the car having run 3,700 miles. He reports… | ||
| scan0129 | Daily report log on car 2.EX, detailing a journey and maintenance from Feb 26th to March 4th. | ||
| View original record | R.R. 235 A (100 T) (S F. 846. 6-8-19) C.I.C. 2409 REPORT ON 2.EX FROM FEB. 26th. TO MARCH 4th. Handwritten Reference Numbers: Top Centre: X.3757 Top Right: X.3757 CK / X.3743 Thursday - Feb. 26th. Car… | ||
| scan0130 | Test driver's log from a continental trip detailing issues with tyres, piston rattles, and ignition, plus future journey plans. | ||
| View original record | -2- R.R. 235 A (100 T) (S F. 846. 6-8-19) G. 2460. Handwritten notes in margin: X.3144 (crossed out) X.984 (crossed out) and this was straightened out at Paris. With regard to tyres blowing off the… | ||
| scan0131 | Continued report on vehicle mileage, petrol consumption, and a piston knock issue. | ||
| View original record | Contd. -3- at Marseilles on Sunday March 14th. X.3056 Mileage for the eight days 1348 making total 6578 miles. Petrol consumption for eight days - 475 litres. Petrol consumption has considerably… | ||
| scan0132 | Extract listing components and modifications for a trials car for the American company. | ||
| View original record | X 3751 Extract from EP7F4.3.20. X.3719. RE TRIALS CAR FOR THE AMERICAN COMPANY. We shall have no difficulty in fixing on this car the following:- X.3612. X.3401b. (a) Rear axle fitted with Gleason… | ||
| scan0133 | Cover memo attaching a telegram regarding piston rattles in Car CJ6 during 10,000 miles trials. | ||
| View original record | C.I.R. x3751 To R. from CJ. To Bp. To Hs. X3743 X3757 Re 10,000 Miles Trials Car CJ6/E5.3.20. Piston Rattles. I am attaching herewith for your information copy of telegram which I have received from… | ||
| scan0134 | Telegram reporting serious continuous piston rattles in chassis X.3443-2EX. | ||
| View original record | X.3757 Copy of Telegram received from BJ. 5th.March.1920. X.3443-2EX Chassis. X.3757 DESPATCHED FROM AVIGNON. WE DROVE FROM PARIS SERIOUS CONTINUOUS PISTON RATTLES WHEN AT HIGH SPEED AND WATER OVER… | ||
| scan0135 | Piston rattles on the 2.EX Car caused by carbon binding. | ||
| View original record | X.3751 To R. from Hs. c. to CJ. c. to Bn. ------------ Hs1/LG6.3.20. X.3743. RE PISTONS. X.3751. With reference to the telegram from BJ. re complaint of piston rattles on 2.EX Car. This we know is due… | ||
| scan0136 | Proposed part upgrades and adjustments for the 2.EX 10,000-mile test car. | ||
| View original record | X.3757a To CJ. from Hs. Hs1/LG8.3.20. X.3743. RE 2.EX - 10,000 MILES TEST CAR. There are several pieces on 2.EX Car which we should like to replace with new pieces which have been improved. The parts… | ||
| scan0137 | Fixing piston rattles on car 2.EX, including a telegram to be sent to the mechanic. | ||
| View original record | X 3751 To C.J. from Hs. HsL/LGlC.3.20. X 3743 RE 2.EX CAR. X 3751 We find that Maddocks has not received instructions we sent as regards overcoming piston rattles on 2.EX Car. We have heard from him… | ||
| scan0138 | Field report letter detailing issues with pistons, a shock absorber, and ignition on chassis 2EX. | ||
| View original record | COPY X.3751. Le Canadel, CK x.3y43. Chassis 2EX. 12.3.20. Mr. E. Hives, Expl: Dept., Messrs. R-R Ltd., I have received your letter dated 3.3.20 and note your remarks re pistons. As far as I can see… | ||
| scan0139 | Car's performance, detailing mileage, fuel consumption, a faulty shock absorber, and positive feedback on the engine. | ||
| View original record | -2- another set on the car I fitted them and will bring the others just as they are for you to see. Mileage from the 5th. to the 12th. - 718 making a total of 7296. Petrol consumption 275 litres. I am… | ||
| scan0140 | Wire request to Maddocks regarding piston clearance on chassis 2.EX. | ||
| View original record | X.3751. AT. Wire to Maddocks. 15.3.20. X.3743. CHASSIS 2.EX X.3751. Please wire whether pistons on 2.EX have large clearance above top ring. Hives. | ||
| scan0141 | Cause and potential cures for piston rattles. | ||
| View original record | R R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 X.3757. To Cj. from R. Copy to Bn. " " Hs. " " EP. X.2748. R8/G16.3.20. RE PISTON RATTLES. X.3751. I telegraphed to you yesterday that we had this… | ||
| scan0142 | Confirmation of a telegram from Royce regarding engine rattles, with a suggested fix for the pistons. | ||
| View original record | X.3751. CONFIRMATION OF TELEGRAM. 16. March 1920. --------------------- 9--------- REPLY PAID. X.3743. 2.EX CHASSIS? X.3751. ------------------ ------- ROYCAR DERBY. HIVES RE BJ. AND MADDOCKS REPORT… | ||
| scan0143 | Piston rattles on a 2.EX Car and a potential manufacturing error. | ||
| View original record | R R 235 A (100 T) (S.F. 846 6-8-19) G. 2460. X.3751. To R. from Hs. c. to CJ. c. to Bn. c. to E. Hs5/LG17.3.20. X. 3751. RE PISTON RATTLES. X.3743. With reference to your telegram on piston rattles on… | ||
| scan0144 | Letter from T.H. Maddocks detailing vehicle faults including a broken shock absorber and pitted ignition points on chassis 2EX. | ||
| View original record | R.R. 235 A (100 T) (S F. 846. 6-8-19) G. 2400 X.3751 Le Canadel. EX. 17.3.20. MAR 22 1920 X. 3743. - C/Chassis 2EX. Mr. Hives, Expl: Dept: X.3751 Rolls-Royce Ltd., RECEIVED X.34614 I have wired you… | ||
| scan0145 | Piston modifications, suggesting a return to a pre-war practice without waiting for a full 10,000-mile test. | ||
| View original record | R.R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 X.3751 To CJ. from Hs. Hs1/LG18.3.20. X.2748. REPISTONS. X.3751. With reference to attached telegram from Mr. Royce., we do not consider that the fitting of… | ||
| scan0146 | Confirmation of a telegram regarding engine piston modifications to prevent rattles due to carbon deposits. | ||
| View original record | z CONFIRMATION OF TELEGRAM% 16th March, 1920. REPLY PAID. ROYCAR DERBY. HIVES RE BJ AND MADDOCKS REPORT ON RATTLES HAS THIS PARTICULAR ENGINE PISTONS WHICH HAVE BEEN TURNED DOWN TO AVOID TIGHTNESS… | ||
| scan0147 | Problem of piston rattles in certain cars and seeking a resolution. | ||
| View original record | R.R. 235 A (100 TWS F. 846. 6-8-19) G. 2460 [Handwritten] 18th Dir. from CJ. c. to Wor. c. to Hs. c. to EP. CK X-3757 CJ11/E18.3.20. [Handwritten] X-2448 RE PISTON RATTLES. [Handwritten] X 3757 With… | ||
| scan0148 | Telegram to Maddocks in Nice regarding an experimental car and pistons clearance. | ||
| View original record | x.3751 Rolls-Royce! Maddocks, 7 Avenue Ganbetta, Nice. 18.3.20. Is experimental car with you waiting for reply to our wire reference pistons clearance. Roycar. | ||
| scan0149 | Telegram from Hives to Maddocks in France, inquiring about solutions for piston binding and what oil was used. | ||
| View original record | X.3751. Maddocks. Nice France. 19.3.20. When do pistons appear to have been binding wire what you have found necessary to do to make car satisfactory. Stop. What oil have you been using. Hives. R.R.… | ||
| scan0150 | Summarizing a conference on the causes and observations of piston rattles in engines. | ||
| View original record | X.3751. To CJ. from Bn. To R. from Bn. X.2748. re PISTON RATTLES. X.3751. Bn1/W22.3.20 & c. to Wor. c. to Hs. c. to Da. c. to EP. c. to By. c. to Sft. c. to EFC. In accordance with your instructions a… | ||
| scan0151 | Piston rattles, clearances, different piston types, and the effects of lubricating oils. | ||
| View original record | Contd. --2-- Bnl/W22.3.20. 2-EX is the first case in which piston rattles have appeard with pistons having the increased clear-ance on the top band. It is now known at the moment whether "picking" up… | ||
| scan0152 | Piston rattle issues, recommending against immediate modification and suggesting further investigation. | ||
| View original record | Contd. -3- Bnl/W22.3.20. miles owing to the development of detonations. It appears from this that we are considerably in advance of the pre-war car as regards distance which can be run before… | ||
| scan0153 | Page discussing production modifications, including increased piston clearance as recommended by Mr. Royce. | ||
| View original record | Contd. -4- Bnl/W22.3.20. any modification can be instructed to the works for incorpor-ation at a point which will not affect production. By that time we believe that further information will be… | ||
| scan0154 | The standardization and supply of split aluminium pistons for the American Company's trials car. | ||
| View original record | X.3751. To EP. from Bn. En3/W25.3.20. X.3719. Re Trials Car for American Company . X.3751. c. to By. c. to Hs. c. to Ck. With reference to EP/T51/O24.3.20, in which you point out that you are unable… | ||
| scan0155 | Cause of an 'elusive knock' being a gudgeon pin knock and potential experimental solutions. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846. 6-8-19) G. 2460. X.3757 To EP. from Hs. c. to Bn. c. to By. c. to Da. Hs3/LG27.3.20. X.2748. RE ELUSIVE KNOCKS. X.3715. X.3751. From tests on experimental cars, we… | ||
| scan0156 | The design and ring configuration for aluminium pistons in car engines. | ||
| View original record | R.R. 235 A (100 T) (S.F. 346. 6-8-19) G. 2460. X.3757. To Oy. From R. Copy to CJ. " " JCR. " " NA. " " Bn. " " Hs. " " EP. " " HM. R5/G29.3.20. X.2748. RE PISTONS FOR CAR ENGINES. X.3757. We have… | ||
| scan0157 | Arrangement of split aluminium pistons for the American trials car, 22-LW. | ||
| View original record | R.R. 235 b (50 T) (S.G. 504. 8-1-20) G. 2585. X.3757 EX RECEIVED MAR 29 1920 To Mr. from Bn. [Mr. is struck through] c. to Hs. [struck through] c. to By. [struck through] c. to Ck. Bn2/W29.3.20. RE… | ||
| scan0158 | Fitting of new split aluminium pistons for an American trials car, designated 22-LW. | ||
| View original record | Hs. c. to Sft. c. to Bn. c. to By c. to Mr Cowan X5751 EP13/F30.3.20. RE. LATEST TYPE SPLIT ALUMINIUM PISTONS FOR AMERICAN TRIALS CAR 22-LW. With reference to By's instructions BY3/H30.3.20, and Bn's… | ||
| scan0159 | The standardisation sheet for a modified aluminum split piston. | ||
| View original record | X.3751. To R. from Hs. CJ. Bn. Wor. By. Da. EP. PN. Hs/AT9.4.20. X.3751.-MODIFIED ALUMINUM SPLIT PISTON. Herewith please receive completed standard- isation sheet for the above. This is for your… | ||
| scan0160 | Test report and approval sheet for a modified type of aluminium split piston. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS. Description of Parts. Modified type of aluminium split piston. Origin. To overcome the tendency of the present split pistons taking a permanent set. Experimental Test… | ||
| scan0161 | Modified type of aluminium split piston. | ||
| View original record | To Ck. from Hs. Hs6/LG19.1.20. X.3751.--MODIFIED TYPE OF ALUMINIUM SPLIT PISTON. This piston is similar to the present split piston we are using except that the design has been gone over, bearing in… | ||
| scan0162 | Approving a modification for piston rattles on the 10,000 Miles Trials Car. | ||
| View original record | X.3757a COPY. To. Works from CJ. CJ2/E.16.3.20. Re Piston Rattles. X.3757a 10,000 Miles Trials Car. ------------------- This is to advise you that I approve of the modification set out in the attached… | ||
| scan0163 | Copy of a telegram from Mr. Royce regarding a solution for piston tightness due to carbon deposit. | ||
| View original record | X.8757a. COPY. COPY OF TELEGRAM RECEIVED FROM MR. ROYCE. 15.3.20. CLAUDE JOHNSON ROLHEAD REG LONDON. WE HAVE APPARENTLY FOUND DEFINITE SOLUTION FOR MADDOCKS COMPLAINT AS TIGHTNESS OCCURS THROUGH… | ||
| scan0164 | Standardization of a new eccentric walled piston following a successful 10,000-mile test run. | ||
| View original record | X3751 To Bn. from By. By9/P29.3.20. X.2565 - RE CHASSIS PARTS WHICH ARE HELD UP AFTER CHASSIS 1000. X.3751. The only item outstanding for chassis prior to 1001 is the piston. Mr. Hives informs me on… | ||
| scan0165 | Performance report on modified aluminium split pistons after extensive mileage tests. | ||
| View original record | Extract from Hs1/LG8.4.20. X.3751.-RE MODIFIED ALUMINIUM SPLIT PISTON. A set of these has now completed 10,000 miles on 2M.X. Car, a second set has completed 9,000 miles and a third set has completed… | ||
| scan0166 | Testing and standardisation of modified aluminium split pistons. | ||
| View original record | R.R. 235 A (100 T) (S F. 846, 6-8-19) (G. 2460. X.3751 To CJ. from Hs. c. to R. c. to E. c. to Da. c. to By. Hs1/LG8.4.20. X.3751 - RE MODIFIED ALUMINIUM SPLIT PISTONS. The standardisation of the… | ||
| scan0167 | From CJ to Hs agreeing to a previous memo about modified aluminium split pistons. | ||
| View original record | X3751 R R. 950 s (20 T) (S.B. 9 4. 5-9-19) C. 2470. To Hs. from CJ. CJ/JS6/D9.4.20. Re Modified Aluminium Split Pistons. ---------------------------------- This is to tell you that I agree to your… | ||
| scan0168 | The 2.EX Chassis 10,000-mile test, concerning a battery issue and a list of parts proposed for standardisation. | ||
| View original record | R.H. 235 A (100 T) (S.F. 848 6-8-19) G. 2460 X.3751. X.3743. - 2EX. Chassis - 10,000 mile Test. HsL/LG9.4.20. Contd. -3- X.607. 5. Smaller size battery. The standard battery we are now using is 55… | ||
| scan0169 | Continued report on piston design, discussing clearances, engine stiffness, and gas leakage issues. | ||
| View original record | X.3751a X. 2448 - Pistons. -4- Hsl/LG12.4.20. Contd. went in a matter of .005" to .006". On the next set we hammered them before we machined them to get rid of the internal strains. We found then that… | ||
| scan0170 | Piston design, gas leakage, and the effectiveness of different types of piston rings and materials. | ||
| View original record | Contd. -5- fitting portion of the piston assisted in holding the gas. The gas which leaks past a piston gets by the stop or joint then round the band between the rings to the next stop and so on until… | ||
| scan0171 | Comparison of horsepower (HP) taken on an engine with cast iron vs. aluminium pistons, and a second test with varying numbers of piston rings. | ||
| View original record | 12.4.20. COMPARISON OF HP. TAKEN ON A STANDARD ENGINE FITTED WITH CAST IRON AND ALUMINIUM PISTONS. H.P. ALUMINIUM. CAST IRON. R.P.M. Cut-out open. Closed. Cut-out open. Closed. 2250 86 75 84.5 73 2000… | ||
| scan0172 | Investigation into the causes and occurrences of piston rattles. | ||
| View original record | R.R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 X.3751a To C.J. from Bn. to R. from Bn. c. to Wor. c. to Hs. c. to Da. RE PISTON RATTLES. Bn1/W13.4.20. c. to By. c. to EP. c. to EFC. c. to Sft. X.2748.… | ||
| scan0173 | Continued document discussing the issuance of a Standardisation Sheet and a report from Mr. Hives on a production modification. | ||
| View original record | R R. 235 a (100 T) (S.F 846 6 8-19) G. 2460 Contd. -2- Bnl/W13.4.20. facture, built into engines, tested , or delivered. It was agreed that a Standardisation Sheet should be issued at once, covered by… | ||
| scan0174 | Extract detailing a list of parts and modifications for a car destined for West Wittering. | ||
| View original record | X.3751a. Extract from R4/G19.4.20. X.3923. RE CAR FOR WEST WITTERING. I enclose herewith a list of pieces that I understand you will be able to fit to the car I am to have, so that I may get… | ||
| scan0175 | From JS to HS regarding papers about fitting two extra rings to pistons, sent to Mr. Johnson. | ||
| View original record | X.3757a To Hs. from JS. JS6/D21.4.20. Re Two Extra Rings fitted to Pistons. Referring to the attached papers, was this sent merely for Mr. Johnson's permanent reference, as he has already signed the… | ||
| scan0176 | Standardisation of chassis parts by fitting two extra rings to the pistons to prevent carbon deposit. | ||
| View original record | R.R. 755 (5 H) (S.A. 325. 25-2-15) G. 0661. STANDARDISATION of CHASSIS PARTS. Handwritten: X 3751a. / filed 24.4.20. Date: 14.4.20. Drawing No.: 3751B. Description of Parts: pistons. Two extra rings… | ||
| scan0177 | Copy of a telegram from Mr. Royce regarding a solution for piston tightness due to carbon deposit. | ||
| View original record | COPY OF TELEGRAM RECEIVED FROM MR. ROYCE. 15.3.20. CLAUD JOHNSON RO'HEAD REG LONDON. WE HAVE APPARENTLY FOUND DEFINITE SOLUTION FOR MADDOCKS COMPLAINT AS TIGHTNESS OCCURS THROUGH CARBON DEPOSIT ABOVE… | ||
| scan0178 | The investigation of piston rattles, detailing various test cases and outcomes. | ||
| View original record | 13.2.20. FACTS WITH REFERENCE TO PISTON RATTLES. 1. The first case of piston rattles was on 7CA. Car when it was first being used by Mr. Royce. The pistons were the Zephyr type fitted with four narrow… | ||
| scan0179 | Recommendations for fitting extra piston rings to prevent piston rattles and improve gas tightness. | ||
| View original record | -2- Contd. RECOMMENDATIONS. Upon consideration of the above facts the Exptl. Dept. recommend that the present pistons should have the extra rings fitted as soon as ever possible. Our reasons for… | ||
| scan0180 | Piston rattles due to carbon accumulation, comparing cast iron and aluminium pistons, and suggesting design changes. | ||
| View original record | X.3757a To Hs. from R. Copy to CJ. " " Bn. " " Da. " " EFC. " " By. X.2748. RE PISTON RATTLES. X.3751a. With reference to piston rattles, and the accumulation of carbon above the rings causing… | ||
| scan0181 | Engine faults and recommending the standardisation of pistons with extra rings to resolve them. | ||
| View original record | HS. [crossed out] c. to Mr. [crossed out] c. to Ry. [crossed out] c. to EFU. X3757a [handwritten] A.T. [stamped] EP4/P20.4.20. X3757a RE. FIXING OF EXTRA RINGS AT TOP OF PISTONS. X.858 I should be… | ||
| scan0182 | Report page detailing engine issues with the ignition system, piston leakage, and carburation. | ||
| View original record | 2. of, i.e., tappets, actuating control rods passing through the crankchamber, crankchamber joints, etc. 5. We also consider that the battery make and break mechanism is not giving satisfaction owing… | ||
| scan0183 | Standardisation sheet for a new type of piston. | ||
| View original record | X3757A BY11-P24.4.20. Mr Shelton from BY. c. Hs. c. SFI CHASSIS - PISTONS. We have now received the standardisation sheet for the latest type of piston which includes the two extra rings at the top.… | ||
| scan0184 | Confirming the standardisation of modified aluminium split pistons after successful testing. | ||
| View original record | X 3751 To WOR. from Hs. EFC Hsl/LG27.4.20. X.3751 RE MODIFIED ALUMINIUM SPLIT PISTONS With reference to the attached, the alteration which Mr. Royce refers to in his memo has completed 10,000 miles on… | ||
| scan0185 | Approving preparations for the introduction of modified aluminium split pistons, pending a continuous engine test. | ||
| View original record | COPY. attached 24.4.20 To Wor. from CJ. CJ15/E19.4.20. Re Modified Alum: Split Piston. Referring to the attached, I see no objection to preparations being made for the introduction of these pistons,… | ||
| scan0186 | From R. to C.J. regarding a proposed modification to make aluminium split pistons thicker. | ||
| View original record | To CJ. from R. COPY. R6/G14.4.20. Attached 24.4.20 My dear CJ. Re Modified Alum: Split Pistons. With reference to the slight modification in the aluminium pistons, that is, the making of them thicker… | ||
| scan0187 | Delay of the 6.EX replacement car and a list of new parts being fitted. | ||
| View original record | X.3451a To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. Hs2/LG28.5.20. X.3923. RE NEW CAR - 6.EX. We have been delayed on 6.EX Car which we are sending to you to replace 1.EX Car, owing to the… | ||
| scan0188 | List of experimental parts being prepared for fitting to car 6.EX. | ||
| View original record | R.R. 285A (100 T) (S.G. 643, 19-2-20) G. 2618 x3457/a Extract from Hs6/LG28.6.20. X.3923. RE CAR 6.EX. In reply to your telegram, we have arranged to arrive at West Wittering about 10-30 A.M. on… | ||
| scan0189 | Observations and improvements on various components of chassis 6.EX. | ||
| View original record | R:R. 235A (100 T) (S. G. 643, 19-2-20) G 2618 X.3751a. To C.J. from R. R2/G17.7.20. Copy to Wor. " Hs. " Da. " EFC. " BJ. " PN. " C. " SP. " OY. X.3923. RE CHASSIS 6.EX. Mr. Hives brought 6.EX to… | ||
| scan0190 | Modifications made to experimental car 1.EX and proposing its transport to West Wittering. | ||
| View original record | X375/a To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to BY. He7/EGS1.8.20. X.3763a/b. RE 1.EX CAR. We propose sending this car to West Wittering on Friday Sept. 3rd. and to bring away 6.EX… | ||
| scan0191 | Unfavorable comparison of post-war car horsepower and acceleration with pre-war models. | ||
| View original record | R.R. 235A (100 T) (S.H 159. 11-8-20) G. 2800 X3751a R. from EP. c. to Hs. C. to EFC. EP2/F10.9.20. 10th Sept. 1920. X.3922. RE HP. AND WANT OF ACCELERATION. X.3751a. X.858. X.3056. With reference to… | ||
| scan0192 | Report comparing high and low compression engines, detailing issues with over-oiling, piston gas-tightness, and proposing modifications. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2800 -2- EP2/F10.9.20. Contd. The HP all round, both high and low compression, is better, a better film of oil being maintained on the cylinder walls, in fact… | ||
| scan0193 | Impact of gear ratios and tyre sizes on car performance. | ||
| View original record | R.R. 225A (100 T) (S.H 159, 11-8-20) G. 2800 Contd. -3- EP2/F10.9.20. 4. Our tests show the gear ratio to be a very important item in this respect. In our comparative tests of a pre-war and post-war… | ||
| scan0194 | Performance issues and potential design improvements for split type pistons. | ||
| View original record | X3752 To R. from Hs. c. to CJ. c. to BN. c. to E. c. to Da. c. to Wor. c. to EP. Hs3/LG12.12.19. X.3732. RE PISTONS. X.2748. X.3754. Split type Pistons. We have now had a fair experience with these… | ||
| scan0195 | Overcoming piston knocks, the impact of a moulders' strike on production, and recommending the consideration of cast iron pistons. | ||
| View original record | R R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 Contd. -2- Hs3/LG12.12.19. best thing we know of to overcome piston knocks, we think that the design of those pistons, as split pistons, should be the best… | ||
| scan0196 | Advantages and disadvantages of using cast iron pistons over aluminium pistons. | ||
| View original record | Contd. -3- Hs3/LG12.12.19. The most definite argument for abandoning the cast iron pistons was because the risk of seizure was so very great, owing to the fact that in order to avoid piston knocks,… | ||
| scan0197 | The reliability of aluminium pistons compared to cast iron, noting disintegration troubles faced by other manufacturers. | ||
| View original record | Contd. -4- Hs3LG12.12.19. eventually obtain a silent reliable aluminium piston but we think at the same time that we should not abandon the cast iron piston because there is the remote chance that our… | ||
| scan0198 | Copy of a telegram from Mr. Royce regarding piston design and production. | ||
| View original record | COPY OF TELEGRAM RECEIVED TO-DAY FROM Mr. ROYCE. To Wor. from Bn. To Hs. " To EP. " To Da. " Copy to Ck. To:- ROYCAR, DERBY. BARRINGTON CONSULT WITH WOR HIVES AND PLATFORD REGARDING WHICH DESIGN OF… | ||
| scan0199 | Development and testing of cast iron pistons as an alternative to aluminium pistons. | ||
| View original record | X3764 Bn. from EP. c. to EH. c. to WOR. EP17/F19.12.19. RE. CAST IRON PISTONS. With reference to Mr. Royce's telegram of the 19th. inst., and Hs's report Hs3/LG12.12.19, I have already discussed this… | ||
| scan0200 | Testing strategy for various piston materials and designs, including aluminium, cast iron, and Zephyr split pistons. | ||
| View original record | To EN.) Hs.) from R. CK.) X.3754 R1/G22.12.19. X. 2748. RE PISTONS. X. 3754. We cannot see any advantage in leaving aluminium unless for excessive wear or disintegration, but if we have substantial… | ||
| scan0201 | Development and testing of various piston designs, including issues with flexibility, seizure, and over-oiling. | ||
| View original record | R.R. 235 A (100 T) (S.F 846 6-8-19) G. 2460 Contd. -2- Hs5/LG29.12.19. non-pressure side to form the spring. These look very promising. If they collapse, however, in the same way as the present ones,… | ||
| scan0202 | Successful cast iron pistons and sending a sample to West Wittering. | ||
| View original record | V.3754 To R. from Hs. c. to CJ. c. to BN. c. to E. c. to DA. c. to EP. Hs3/LG31.12.19. X.3754. - RE PISTONS. X.2748 The most successful cast iron pistons we have used on the car are E.4237. We are… | ||
| scan0203 | Clarifying the success of E.4237 cast iron pistons is due to the omission of the E.3028 stiffening plate. | ||
| View original record | Hs. from EP. c. to BN. c. to DA. c. to F. X 3754 chassis EP3/F2.1.20. RE. CAST IRON PISTONS. With reference to your Hs3/LG31.12.19, I trust it is realised that in pointing out that E.4237 pistons have… | ||
| scan0204 | Critique of a submitted cast iron piston design and a proposal for a new trunk-type piston for testing. | ||
| View original record | To Hs. from R. Copy to CJ. " " Bn. " " Ck. X.3754 R6/G6.1.20. X.3754. - RE PISTONS. X.2748 The cast iron piston you have sent us does not appear a very hopeful design should we be obliged to return to… | ||
| scan0205 | Testing of Ricardo and Zephyr type pistons in different materials. | ||
| View original record | Contd. X.2974' -2- R6/G6.1.20. It might also be advisable to test a set of Ricardo pistons in both aluminium and cast iron, made in accordance with our most recent knowledge. I am inclined to think,… | ||
| scan0206 | The modification of a cast iron piston for testing purposes. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460 Extract from Dal/EF7.1.20. -------------------------- RE CAST IRON PISTON. -------------------- In order to test Cast Iron Pistons we took the existing… | ||
| scan0207 | Recommendation to adopt a new design of split aluminium piston. | ||
| View original record | R.R. 235 a (100 T) (S.F 846 6-8-19) G. 2460 X.3754 To Bn. from Hs. c. to Wor. c. to By. c. to Da. c. to EP. Hsl/LG17.1.20. ----------- X.2748. X.3732. X.3754. ----------- X.3751. - RE ALUMINIUM… | ||
| scan0208 | Plan to fit cast iron pistons to trial cars for comparison with existing aluminium pistons. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460 Contd. -2- Hsl/LBM 17.1.20. should be to get several sets of cast iron pistons as soon as possible. We should fit sets of these pistons to the London… | ||
| scan0209 | Bulk production and redesign of pistons, including split pistons and cast iron alternatives. | ||
| View original record | X 3757 To R. from Bn. Copy to CJ. Copy to Wor. Copy to Da. Copy to Hs. Copy to Ck. Bn14/W21.1.201 X. 3732. X. 3754. - RE Bulk Production of Pistons. X. 3751. It is thought by Mr. Wormald that there is… | ||
| scan0210 | Testing and performance of split cast iron pistons. | ||
| View original record | X.3752 To R. from Hs. c. to CJ. c. to Rn. c. to E. c. to Da. c. to EP. Hsl/LG 24.1.20. X.3754. - RE SPLIT CAST IRON PISTONS. X.682. We are running 7-CA fitted with a set of the cast iron pistons we… | ||
| scan0211 | Risk of seizure in standard cast iron pistons after repair. | ||
| View original record | Contd. -2- Hsl/LG24.1.20. a standard cast iron piston which has the risk of seizure. There have been several cases lately of the cast iron pistons seizing after repair cars have been delivered. Hs. | ||
| scan0212 | Proposal of a new solid type piston design (drawing N.3509) for repair cars. | ||
| View original record | X 3754. To R. from Da. Dal5/EF18.2.20. X 3754. RE REPAIR CARS. Long con rods In view of the difficulties experienced in fitting the standard type of cast iron pistons on repair cars satisfactorily it… | ||
| scan0213 | Confirming Mr. Royce's approval of a cast iron split piston design with a requested alteration to the saw-cut. | ||
| View original record | To Da. from E. c. to CJ. c. to Bn. c. to Hs. c. to Ck. c. to HM. X 3754 E3/G23.2.20. X.3754 Cast Iron Split Piston X.3559 - RE REPAIR CAR PISTON. In reply to your memo DA15/EF18/2/20, will you kindly… | ||
| scan0214 | Blueprints for an urgent experimental set of Cast Iron Split Pistons for Pre-War Engines. | ||
| View original record | To RHC. from Da/Stt. c. to Hs. Ck. Mr. Chandler. Da/Stt9/EF26.2.20. X.3754.- Cast Iron Split Piston for Pre-War Engines Section 5040. We send you herewith two blue prints of N.3509 Piston, for making… | ||
| scan0215 | Adoption of split aluminium pistons for repair work and investigating a related engine knock. | ||
| View original record | COPY To Hn. from R. c. to CJ. c. to Hn. c. to Dn. c. to Gk. X.3754. R1/G26.2.20. X.2448 RE SPLIT ALUMINIUM PISTON. X.3559 X.3451 We are pleased that the pistons are shaping well. I should like to… | ||
| scan0216 | Proposal to bring the 4.EX experimental chassis for testing, detailing its new features. | ||
| View original record | X3Y54a. To R. from Hs. c. to CJ. c. to Bn. Hs2/LG27.2.20. X 3Y64. RE 4.EX CAR. I propose to bring 4.EX chassis (the latest experimental chassis) to West Wittering next week. This chassis is fitted… | ||
| scan0217 | New split-type cast iron repair pistons requiring testing and sanction before standard use. | ||
| View original record | R R 235 B (200 T) (S.F. 674 22-5-19) G. 2376 X.3754. To Gs. from Bn. c. to Mr. c. to Hs. c. to Ck. X.3754 RE CAST IRON REPAIR PISTONS. Bn5/W3. 3. 20. With reference to CJ11/E.1.3.20, the cast iron… | ||
| scan0218 | Questioning whether new cast-iron pistons for repair work will be thoroughly tested. | ||
| View original record | X.3754. COPY. To Bn. from CJ. Re Piston. Split Aluminium. CJ11/E.1.3.20. Referring to R's memo to Hs., R1/G26.2.20, I presume that the cast-iron pistons, which are to be used for repair work, if they… | ||
| scan0219 | Road testing requirements for cast iron repair pistons. | ||
| View original record | X3752+ To C.J. from Bn. c.c. to H. [crossed out] c.c. to Hm. [crossed out] c.c. to Hm. [crossed out] c. to Ck. Bn10/WS. 3. 20. [crossed out]X-Y54-RE[/crossed out] CAST IRON REPAIR PISTONS. With… | ||
| scan0220 | Engine over-oiling complaints from the U.S.A., related to piston ring design. | ||
| View original record | X3754 Extract from R10/G8.6.21. X.3614 - U.S.A. COMPLAINTS. X.2809 X.3754 X.2748 ENGINE OVER-OILING. It was understood that you were long ago going to adopt the 6-ring piston. This will reduce to a… | ||
| scan0221 | Recommendation to fit aluminium pistons instead of cast iron to prevent detonations and seizing. | ||
| View original record | Contd. -2- R10/CS.8.6.21. case the distribution must be equal before it arrives in the cylinder. We therefore think that the best policy is to fit the most recent aluminium pistons as we are now… | ||
| scan0222 | Cast Iron split piston for short connecting rods. | ||
| View original record | X. 3454a. C.I. Split Piston for Short Conn: Rods. | ||
| scan0223 | New cast iron piston design (N.3080) and a modified version (N.2965) for short connecting rods. | ||
| View original record | To R. from Da. cl to Bn. Dal/EF7.1.20. RE CAST IRON PISTON. (For Short Con: Rods) We have made a detail of a Cast Iron Piston suitable for the short connecting rods, and send herewith a print of… | ||
| scan0224 | Explaining why piston rings on Cast Iron Pistons are not carried as far down as on aluminium pistons. | ||
| View original record | To R. from Da. c. to Bn. Da9/EF9.1.20. In sending you the drawings of Cast Iron Pistons we ought to have added that we do not carry the Rings so far down as is done in the aluminium Pistons because it… | ||
| scan0225 | Cancelling further work on the Cast Iron Piston N.3080. | ||
| View original record | X.3754a. To RHC. from Da/Stt Da/Stt1/EF21.1.20. CAST IRON PISTON - SEC. 5040 - X.3754a. previous memo Da/Stt3EF6.1.20. Please note that the Cast Iron Piston N.3080 is now cancelled, will not be… | ||
| scan0226 | Diagonal web scraper piston in cast iron with a spring skirt. | ||
| View original record | To Dn. from E. Copy to CJ. " " Bn. " " Hs. " " Ck. X 3881 E6/G13.1.20. 3881 X.3754 RE DIAGONAL WEB SCRAPER PISTON IN CAST IRON WITH SPRING SKIRT. We send you herewith drawing No.LeC.1186 shewing the… | ||
| scan0227 | Comparative wear on cylinder bores caused by aluminium versus cast iron pistons. | ||
| View original record | X.3881. To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to EP. c. to Wor. Hs1/LG12.4.20. X.2748. RE PISTONS. X.3732 (X.3881 handwritten over it) During our last visit to W.W., Mr. Royce… | ||
| scan0228 | Persevering with aluminium pistons versus returning to cast iron pistons, citing issues from 1914. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460 Contd. -2- miles, has worn .007". As the wear is generally consistent on all six cylinders the most probable cause for the variation one would think, is… | ||
| scan0229 | Piston troubles, comparing aluminium and split cast iron pistons, and a recommended repair procedure. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2480 Contd. -3- Hs1/LG12.4.20. one /considers the labour charges of to-day. As regards piston troubles one the present standard cars fitted with aluminium… | ||
| scan0230 | Piston clearances, piston knock, engine stiffness, and gas leakage issues. | ||
| View original record | Contd. -4- went in a matter of .005" to .006". On the next set we hammered them before we machined them to get rid of the internal strains. We found then that the pistons remained up to size, in fact… | ||
| scan0231 | Piston ring design, comparing different types to improve gas tightness and prevent crankcase vapour. | ||
| View original record | Contd. -5- 2 Hs1/LG12.4.20. fitting portion of the piston assisted in holding the gas. The gas which leaks past a piston gets by the stop or joint than round the band between the rings to the next… | ||
| scan0232 | Comparison of horsepower (HP) for an engine with cast iron vs. aluminium pistons, and HP tests with different numbers of piston rings. | ||
| View original record | 12.4.20. COMPARISON OF HP. TAKEN ON A STANDARD ENGINE FITTED WITH CAST IRON AND ALUMINIUM PISTONS. H.P. ALUMINIUM. CAST IRON. R.P.M. Cut-out open. Closed. Cut-out open. Closed. 2250 86 75 84.5 73 2000… | ||
| scan0233 | Listing different piston designs that have been passed for testing. | ||
| View original record | R.R. 235B (50 T) (S.G. 755, 24-3-20) G. 2650 RHC to EFC. X.3881 RHC3/LG1.7.20. 3 RE PISTONS. Will you kindly note that the following pistons have been passed to test:- X.3881 - Split C.I. Piston with… | ||
| scan0234 | Design remarks for a split aluminium piston on a 40/50 HP chassis. | ||
| View original record | COPY. X3924 To Da. from E. Copy to CJ. " " Bn. " " Ck. " " Hs. E4/G28.1.20. X.3751. RE SPLIT PISTON IN ALUMINIUM. X3924 40/50 H.P. CHASSIS. In reply to your memo Da17/CB20.1.20, I am directed by Mr.… | ||
| scan0235 | Modifications to aluminium and split cast iron pistons. | ||
| View original record | R R. 235 A (100 T) (S.F 846 6-8-19) G. 2469 Contd. -2- E4/C28.1.20. 5 Contd. He would also like a corresponding amount added below the piston pin so that the aluminium piston will conform more to the… | ||
| scan0236 | Modifications to an aluminium split piston for a 40/50 chassis. | ||
| View original record | X.3924. COPY FOR CK. To R from DA. Copy to BN. X3924. RE SPLIT PISTON IN ALUMINIUM. 40/50 CHASSIS. DA6/CB10-2-20. With reference to E4/G28-1-20 we have modified drawing No. 2820 and send a print of… | ||
| scan0237 | Design changes to a split aluminium piston for the 40/50 HP chassis. | ||
| View original record | X3924 TO Da. from E. Copy to CJ. " " Bn. " " Hs. " " Ck. X.3927. E6/G18.2.20. RE SPLIT PISTON IN ALUMINIUM FOR 40/50 H.P. CHASSIS. With reference to drawing No. 3510, would you kindly note that Mr.… | ||
| scan0238 | Continued note on piston design for a lighter and more durable result. | ||
| View original record | Contd. -2- E6/G18.2.20. be better to put them higher, making a lighter piston and one with more wear in it. E. | ||
| scan0239 | Modifications to an aluminium split piston for a 40/50 chassis following engine seizing tests. | ||
| View original record | To R from DA. Copy to EH. Copy to CK. x.3924 DA10/CB20-2-20. RE SPLIT PISTON IN ALUMINIUM - 40/50 CHASSIS. With reference to Mr Elliott's E6/G18-2-20, the cone was altered from .4 to .6 in height in… | ||
| scan0240 | Use of liners on pistons to achieve high and low compression and agreeing with a suggestion to use standard cylinders without liners. | ||
| View original record | X4146 AT By. from EP. c. to HS. c. to DA. c. to HM. EP15/F11.6.20. A.T. x2748 RE. CHASSIS PISTONS AND LINERS. x790 With reference to your BY6/F11.6.20, the present practice of using liners on the… | ||
| scan0241 | Use of a liner between the cylinder and crankcase for low and high compression engines. | ||
| View original record | R.R. 235B (100 T) S.H. 89. 22-7-20) G 2769 X.4146 Hs. from By. c. EP. c. Hm. Byl/P14.6.20. CHASSIS - CYLINDERS. RE PACKING BETWEEN CYLINDER AND CRANKCASE. X.4146. Referring to my previous… | ||
| scan0242 | The decision to abolish the liner used with low compression pistons for early postwar cars. | ||
| View original record | X.4146 Mr. Shelton. from By. c. to Hs. c. to EFC. By/3/P16.6.20. X.2748. X.4146. CHASSIS - PISTONS. X.790. It has been decided by Conference that we shall abolish the liner used in conjunction with… | ||
| scan0243 | The decision to abolish cylinder liners and providing blueprints for a new experimental flexible split piston. | ||
| View original record | R.R. 255A (100 T) (S.G. 643, 19-2-20) G. 2618 X.4146 To ~~RHG.~~ from BY/Shn. c.c. to ~~EFC.~~ c.c. to ~~Dmr.~~ BY/Shn2/ML22.6.20. X.4146 - 40/50 CHASSIS. PISTON - SECTION 5040. With further reference… | ||
| scan0244 | The alteration of pistons for a low compression engine. | ||
| View original record | X.4146 To Hs. from R. Copy to CJ. R15/G25.6.20. X.2748. X.4146. RE WORKS' CONFERENCE OF 15th JUNE, 1920. I agree that the pistons for the low compression engine should be altered instead of using a… | ||
| scan0245 | Instruction to the Works to produce patterns for a low compression piston and to proceed with standardization. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 X.4146. He. C. Mr. Shelton. C. EFC. C. SFT. ------------------- CHASSIS PISTONS. RE LOW COMPRESSION PISTON MINUS A LINER. -----------------------------------… | ||
| scan0246 | Distributing standardisation sheets for a wearing strip, oil feed, and piston. | ||
| View original record | To R. from Hs/AT. CJ. X 4146 Hs/AT9.8.20. RE STANDARDISATION SHEETS. Herewith please receive standardisation sheets for the following:- X.3470. Ferodo wearing strip for Bonnet. X.3473a. Altered… | ||
| scan0247 | Standardisation of a flexible split piston for use without cylinder liners. | ||
| View original record | R R 755 (5 H) (S F. 621, 2-5-19) G. 2501. X.4146 COMPLETED 15.9.20. STANDARDISATION of CHASSIS PARTS Description of Parts. Flexible split piston (low compression) for use without cylinder liners.… | ||
| scan0248 | Status and requirements for three new standardized parts for 'E' units. | ||
| View original record | X.4146. Mr. Shelton from By. c. Hs. c. Da. c. EFC. By5/P20.9.20. RE STANDARDISATION SHEETS FOR CERTAIN "E" UNITS. We have received signed up sheets for the following parts:- Ferodo wearing strip for… | ||
| scan0249 | Extract from a memo discussing potential improvements and standardization for 'R' Series material, covering switches, pistons, and magnetos. | ||
| View original record | R.R. 235A (100 T) (S.H. 798. 10-12-20) G 2247 X446 To EP. from Ry. Extract - By10/H11.2.21. X.2565. "R" SERIES MATERIAL. The following sections have been held in view of the possibility of the… | ||
| scan0250 | Drawing Lec.1069 for a 20 HP chassis piston and connecting rod, detailing design choices and modifications. | ||
| View original record | To Da. from E. c. to EH. c. to EFC. X. 3487 - RE 20 H.P. CHASSIS PISTON AND CONNECTING ROD I send you herewith drawing No. Lec.1069 shewing details of the above. This drawing also illustrates a scheme… | ||
| scan0251 | Print for a 20 Hp. Piston & Connecting Rod. | ||
| View original record | To Mr. Coverley. from EFC. EFC7/T2.4.19. X.3487 - 20 Hp.PISTON & CONNECTING ROD Herewith please receive print of LeC.1069 in connection with the above. EFC. | ||
| scan0252 | Notification regarding the receipt of piston rings from the British Chuck & Piston Ring Co. for an experiment. | ||
| View original record | R.R. 235 B (200 T) (S.F. 103. 25-10-18) G. 2241. X 3487 Mr Clark from Order Office. Wd/Bnl/HP20619. 20th June.1919. Please note that we have received from The British Chuck & Piston Ring Co., 164… | ||
| scan0253 | Listing the parts fitted to a 'Goshawk' engine for testing. | ||
| View original record | X.3457 To EFC. from RHC. c. to Hs. Hs4/LG20.9.20. X.3481. RE "GOSHAWK" ENGINE. The above engine has been placed on test and has been fitted with the following parts. X.3536. - Crankcase & Bearings.… | ||
| scan0254 | Instruction regarding the 'N' Scheme 852 for the Goshawk II piston and connecting rod, putting a previous memo on hold. | ||
| View original record | X4224 To BY from DA/JHC. c. to HS. c. to TB (1 print). c. to RHC(1 print). DA/JHC1/FE2-5-21. X422-4 X 4223 PISTON AND CONNECTING ROD - GOSHAWK II. In accordance with Mr Day's instructions, please,… | ||
| scan0255 | Design and manufacture of the 'Goshawk II' engine's connecting rod, piston, and combustion space. | ||
| View original record | To DA. from E. Copy to WOR. " " HB. " " BY. " " E.O. x4224 EA/G13/5/21. 2 X.4224 X.4223 RE "GOSHAWK II" - CONNECTING ROD AND PISTON. We send you herewith drawing No. Lec.1395 shewing the above. A… | ||
| scan0256 | Design and manufacturing options for engine components, including pistons and connecting rods. | ||
| View original record | To DA. from E. -2- E4/G13/5/21 Contd. as described above, and as shown for the "Buzzard" on Lec.1276, for Mr. Royce's inspection. Needless to say the models should be made as quickly as possible. The… | ||
| scan0257 | Drawing for the minimum dimensions of a connecting rod. | ||
| View original record | To D.A. from E. -3- E4/013/5/21 Contd. Works would supply a drawing showing the minimum dimensions they think could satisfactorily be worked to on the stem of the connecting rod by the use of… | ||
| scan0258 | The creation of two urgent wooden models for a Goshawk 11 connecting rod and piston. | ||
| View original record | X.4224 To BY. from Da/STT. c. to HS. c. to TB (1 print) c. to RHC(1 print) Da/STT3/CB18.5.21. X.4223 - GOSHAWK 11 - CONNECTING ROD AND PISTON X.4224 Please receive herewith three blue prints of… | ||
| scan0259 | Design modifications for the 'Goshawk II' piston and connecting rod. | ||
| View original record | X4224 COPY E1/G28/5/21. To DA. from E. Copy to SJ. " OR. " HS. " BY. X4224 " E.O. X4223 RE "GOSHAWK II" PISTON AND CONNECTING ROD. Since it is possible to obtain the dimensions we require on the… | ||
| scan0260 | Design and testing of a cast iron piston for the Goshawk 11 engine, including decisions made by Mr. Royce. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to Hs. c. to BY. X4224 E7/G16.9. 21. X.4224 - RE CAST IRON PISTON FOR "GOSHAWK 11" - LeC.1447. We send you herewith the above drawing which will enable you to… | ||
| scan0261 | Advantages of using aluminium pistons over cast iron to reduce engine detonation. | ||
| View original record | X.4224 17.10.21. Extract from R9/G17.10.21 X.4219 PISTONS. X.4224 As regards aluminium pistons, I think we should persever- ere with these, as they certainly should be lighter than cast iron, and less… | ||
| scan0262 | Drawing modifications for the Goshawk 11 engine to address an over-oiling issue. | ||
| View original record | To Da. from E. c. to CJ c. to Wor. c. to Hs. c. to BY. X4224 E5/G10.11.21. X.4224 X.4235 - GOSHAWK 11. OVER-OILING. We send you herewith drawing No.LeC.1484 shewing the baffle or oil splasher… | ||
| scan0263 | Comparative study of piston designs 'Gos I' and 'Gos II' against a '40/50' model, with dimensioned drawings and tables of area and ratio calculations. | ||
| View original record | Top Drawing (40/50): Dimensions: 4.250, 1.000, 2.250, 1.000, 1.000 Dia., 4.500 Dia. Label: 40/50 Middle Drawing (Gos I): Label: Gos. I Dimensions: .750 Dia., .725, 1.200, .725, 2.650 Bearing Bottom… | ||
| scan0264 | Fixing excessive oil consumption and smokey exhaust in Goshawk engines by modifying the piston scraper ring. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. X4224 Hs3/LG9.10.22. GOSHAWK 11. X.4134. X.4238. X.4224. There have been one or two cases of excessive oil consumption on Goshawk engines. The… | ||
| scan0265 | Adoption of a bevelled scraper ring for maximum efficiency over other methods. | ||
| View original record | contd:- z -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… | ||
| scan0266 | Standardisation sheet for a bevel on a scraper piston ring, reference X No.4224½. | ||
| View original record | X4224 Hs. EP/CEP6/EC15.11.22. BEVEL ON SCRAPER PISTON RING. X No.4224½ We attach hereto Standardisation Sheet for the above, duly passed and signed. Hs NOV 16 1922 RECEIVED | ||
| scan0267 | Standardisation of a bevel on scraper piston rings to address over-oiling and smoking in Goshawk cars. | ||
| View original record | R.R. 755 (5 H) (S.J. 291, 12-10-21) G. 3087. X.4224. HAWK. COMPLETED 23.11.22 STANDARDISATION of CHASSIS PARTS. Description of Parts. BEVEL ON SCRAPER PISTON RING. Origin. To overcome over-oiling and… | ||
| scan0268 | Modifications to the 20 HP engine's latest oiling arrangement to address smoky exhaust issues. | ||
| View original record | X4224 Hs JAN 1 1923 Wor c. to Hs. EP4/H30.12.22. re. 20 HP. Latest Type Oiling Arrangement. X4224 X4238 4219 With reference to your Wor2/M29.12.22, attaching BJ15/H28.12.22, and previous… | ||
| scan0269 | The advantages of ample engine lubrication during a trial run. | ||
| View original record | - 2 - sacrificing in any possible way the lubrication of the engine, and an engine with which we are able to give ample lubrication has considerably more advantages than may be appreciated in an… | ||
| scan0270 | Effectiveness of a beveled lower scraper ring in preventing overoiling. | ||
| View original record | To BJ. from R. c. to CJ. LHS. c. to BY. Wor. c. to Hs. EP. c. to E. Da. X4224 R10/M19.1.23. RE. OVEROILING. X.4224. X.4225. With reference to overoiling, we cannot understand why the bevel on the… | ||
| scan0271 | Test results on bevelled piston scraper rings. | ||
| View original record | X4224 To R. from Hs. c. to CJ. c. to E. c. to Ds. c. to BY. Hs4/LG1.2.23. PISTONS - SCRAPER RINGS. We have carried out tests as you suggested and have proved that the advantage in the bevel ring is… | ||
| scan0272 | Comparison of piston distances from Top Dead Centre (T.D.C.) for Goshawk 11 and Swashplate pistons at various crank angles. | ||
| View original record | X4224 DISTANCE FROM T.D.C. POSITION OF GOSHAWK 11. AND SWASH PISTONS FOR VARIOUS CRANK ANGLES. Handwritten: X4224 X.4369 Crank Angle. Goshawk 11. Stroke 4 1/2" Swashplate. Stroke 4 1/8" 10º .044"… | ||
| scan0273 | Fitting aluminium pistons for 40/50 and 20 HP chassis, addressing issues with seizing and knocking. | ||
| View original record | X.4224. To BY. c. to Hs. c. to Wor. for SFT/AEM. EP14/H4.10.23. RE. FITTING OF ALUMINIUM PISTONS. X.2748 40/50 AND 20 HP. CHASSIS. X.4224 We have been and still are experiencing a certain amount of… | ||
| scan0274 | Standardizing piston testing procedures to reduce expense and service failures. | ||
| View original record | contd:- -2- appears to stay 'put' by what would appear to be piston distorsion during test and I shall be glad if you can consider instructing for this method of procedure to be standardised. I am… | ||
| scan0275 | Testing of taper ground pistons for a 20 HP chassis. | ||
| View original record | X4224 Hs. Mr. Coverley. SET/AEM5/EMM.10.10.23. RE. 20 H.P. CHASSIS PISTONS AND TAPER GRINDING. We shall be pleased if you will report on the cylinder and pistons which Mr. Ellison has sent you, as… | ||
| scan0276 | Request for a report on the 20 HP chassis pistons and taper grinding. | ||
| View original record | Y4224 U. Hs. Mr.Coverley. SFT4/EMM.24.10.23. RE. 20 H.P.CHASSIS PISTONS & TAPER GRINDING. We should be pleased to receive your report on the cylinder and pistons sent to you by Mr.Ellison, mentioned… | ||
| scan0277 | Standardisation of chassis parts, specifically the grinding of pistons for the 40/50 HP and 20 HP chassis. | ||
| View original record | R.R. 755 (10M) fsl 73 18-7-23) MP 274954a. X4224 COMPLETED 31.10.23. STANDARDISATION of CHASSIS PARTS. Date 4.10.23. Description of Parts. 40/50 HP. AND 20 HP. CHASSIS. GRINDING OF PISTONS. Origin. To… | ||
| scan0278 | Recommendation to standardize pistons with taper grinding for the 20 HP chassis following successful testing. | ||
| View original record | To BY. from Hs. c. to Sft. X4224 Hs2/LG6.11.23. PISTONS. 20 HP. CHASSIS. X2748 X4224 The Works have recently supplied us with a set of Pistons with taper grinding on the sides. We have fitted these to… | ||
| scan0279 | Design of E.A.C.11 and Goshawk 11 pistons, specifically the piston pins and plugs. | ||
| View original record | Ro BY. from E. c. to CJ. HS. X4224 S E C R E T. E2/M18.7.24. E.A.C.11. AND GOSHAWK 11. PISTONS. X.4224 X.9040 We send you herewith drawing No.Le.C.1901., shewing floating piston pins with spherical… | ||