Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Suggestion to add a square to the clutch trunnion's ball end socket for future forgings. | ||
| View original record | R.R. 295A (200M) (W 705. I.S.(1) G. H&S. N6/B21911. 21st September 1911 Re Clutch Trunnion. Mr. Bailey 21-9-11 [Signature] Will you kindly add a square to the ball end socket operating the clutch, so… | ||
| Scan002 | Improvements to clutch design, proposing a new arrangement with a non-combustible, non-metallic face and no oil. | ||
| View original record | [Handwritten]: Mr. Barrington x 964 [Typed]: 12th October 1911 R12/D1/121011 C.J. and Members of Technical Committee. Clutches. I was going to point out to Mr Nadin that we ought to do something in… | ||
| Scan003 | Clutch design, comparing leather, cone, and dry plate clutches, and experiments with cotton and asbestos friction materials. | ||
| View original record | (2) we have to put on the present flywheel to suit the leather clutch, and will enable the gears to be changed much better by a novice. The ideal clutch should be perfectly free when out and should… | ||
| Scan004 | Request to produce six socket bolts for a clutch mechanism for experimental purposes. | ||
| View original record | N2/L271011 Ref. 66/28 (vi) October 27th 1911 Re C771, Socket Bolt for Clutch Mechanism Mr. Mills... 27-10-11 will you please instruct that six of the above be put through for experimental purposes.… | ||
| Scan005 | Meeting minutes discussing the materials, storage, and testing of the cone clutch, and the progress of the plate clutch. | ||
| View original record | R.R. 235 (20 H) (W 974. 19.10.11) G. 2078 (1) CONE CLUTCH. 69th Meeting, Nov. 1st, 1911. Re method of fixing cotton belting to clutch cone. The Committee suggested that Mr. Bailey should proceed with… | ||
| Scan006 | Meeting notes discussing a suggestion for clutch trunnion lubrication and the storage method for clutch leathers. | ||
| View original record | 77th Meeting, Nov.16th,1911. Suggestion No. 118 - Re Clutch Trunnion. At present the lubrication hole in the clutch trunnion C766, is drilled on the gear box side of the trunnion web, this suggestion… | ||
| Scan007 | Urgent implementation of a new heavier flywheel as standard and the required alterations. | ||
| View original record | Ref. 86. X 964 X 873 Mr Spinney 27/11/11 TBB2/L271111. It is possible that we may fit as standard, the new heavier flywheel immediately. will you kindly proceed with a scheme for the necessary… | ||
| Scan008 | Experimental clutch ring and large flywheel test report card. | ||
| View original record | a/y X964 Section. H10 1200 DESCRIPTION:- Experimental Clutch ring large flywheel. Date sheet from office. 26.9.11. Date received. 30.9.11 Date Works instructed. 28.9.11. Material received. Reported… | ||
| Scan009 | Requesting the addition of a second oil hole to the clutch trunnion lever C766 for improved lubrication. | ||
| View original record | TBB/L5171111 REF 77 (x) Nov.17th 1911 Re Clutch Trunnion. Mr. Spinney 17-10-11 Will you please add to the clutch trunnion lever C766 another oil hole on the opposite side of the web to which the oil… | ||
| Scan010 | Meeting minutes discussing the design of the C711 Clutch Trunnion socket link regarding clearance of the ball end. | ||
| View original record | R.R. 235A (150 H) (V.V. 216. 12.12.13) G. 0233. 89th Meeting. Nov.29th,1911. X964 Re C711 Clutch Trunnion socket link. The Committee submitted to Mr. Spinney a sample link, the socket of which… | ||
| Scan011 | Meeting minutes discussing a lubricating hole for a clutch lever and a clutch cone from an external supplier. | ||
| View original record | Meeting ...6th, 1911. Re suggestion 118 re lubricating hole in clutch trunion lever. The Committee had recommended that an oil hole should be drilled on either side of the web for this lever, instead… | ||
| Scan012 | Meeting minutes concerning cone clutch noise, lubrication issues, and material supplied by the Scandinavian Belting Company. | ||
| View original record | 93rd M / no. ( 4 ) CONE CLUTCH Cont. The Committee advised Mr. Nadin to return this cone after checking its size on a standard aluminium clutch, to the Scandinavian Belting Company for the joint to be… | ||
| Scan013 | Committee discussion on the Cone Clutch, prioritizing the lubrication of the leather clutch. | ||
| View original record | ( 5 ) CONE CLUTCH Cont. Mr. Bailey informed him that he had not yet been able to to give this his attention, as he was at present almost entirely occupied with axle matters. The Committee agreed that… | ||
| Scan014 | To Mr Spinney about standardizing the flats cut on a clutch trunnion ball socket link. | ||
| View original record | R.R. 235 (20 H) (W 974 19.10.11) G. 2078 Ref. 96 (29-6) Mr Spinney. 15/12/11 TBB8/L151211. Please note that the flats cut on the ball socket link for the clutch trunnion should be made standard.… | ||
| Scan015 | Copy of a meeting minute regarding the design of a C711 Clutch trunnion socket link. | ||
| View original record | Copy of Minute 4 of the 89th Meeting of the T.C. Mr. Spinney 19/12/11 TBB5/DL191211 X964 Re C711 Clutch trunnion socket link. "The Committee submitted to Mr. Spinney a sample link, the socket of which… | ||
| Scan016 | Meeting minutes discussing the clearance in a clutch trunnion socket link and the evaluation of Renault and Crossley clutch designs. | ||
| View original record | X964 104th Meeting, Dec.27th,1911. Re C711 - Clutch Trunnion Socket Link. The Committee had suggested that the clearance in this socket was more than was actually necessary, and that the bearing… | ||
| Scan017 | Request to review the layout of the Clutch Trunnion Socket Link C711 regarding its clearance and bearing surface. | ||
| View original record | Ref. 104(89-iv) Re Clutch Trunnion Socket Link C711. Mr Spinney 8/1/12. TBB1/L8112. Will you kindly lay out this socket link and ball end, to see if the clearance provided is more than necessary and… | ||
| Scan018 | Departmental memo regarding a broken part from The Hon. E.S. Montagu, requesting an examination for a possible free of charge replacement. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). X 964 P21/IJ14212. DEPARTMENTAL MEMO. This column is for Name of Person addressed. Mr Wormald.… | ||
| Scan019 | Broken pieces of a ball case for a clutch trunnion, requesting an examination and report. | ||
| View original record | Copy of Memo. C10/B14212. S to W 14.2.12. re 1331 - Hon.E.S.Montagu. We enclose you herewith broken pieces of ball case for clutch trunnion C.771. We shall be glad if you will please examine this and… | ||
| Scan020 | Clutch rivets catching, despite being countersunk. | ||
| View original record | R.R. 4 1/2 H: (X. 435. 14.12.11) G. 2227 CJV VH X964 Section 1200 X867 Description: Clutches - Rivets catching although countersunk 3/32" Date: 7/2/12, REPORT: Test on all clutches dismantled.… | ||
| Scan021 | Departmental memo chasing an overdue report from Mr Wormald regarding a broken clutch trunnion for Chassis 1331. | ||
| View original record | R.R. 475 (50 H) (X 547. 23-1-12). E.P. 1078. X964 ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. P16/IJ21212. This column is… | ||
| Scan022 | Failure of a socket bolt and arranging a technical committee meeting. | ||
| View original record | R.R. 252A (100 m) (X 206. 8.1.12) G 2260. X964 Montagu. 1331. AW6/C22212. Mr De Looze. Mr Pope. 22.2.12. I have examined the broken socket bolt, and cannot give any reason why it should break as the… | ||
| Scan023 | Departmental memo discussing the lubrication of trunion ball races and suggesting improvements. | ||
| View original record | R.R. 475 (50 H) (X 636, 20 2.12) E.P 1297. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. 113-d 114 This column is for Name… | ||
| Scan024 | Letter from F.H. Royce regarding the possibilities of using magnetic clutches in change speed boxes. | ||
| View original record | H.R. 235 A (150 u) (V.V. 585. 23.2.14) G. 9363. Copy. X.904 Beacon Hotel, Crowborough, Sussex. 24th June, 1912. COPY. My dear C.J., I fully understand the possibilities of using magnetic clutches in… | ||
| Scan025 | Departmental memo regarding a potential rectification of a clutch to be reviewed by the designers. | ||
| View original record | R.R. 475 (100 H) (X 67. 22.5.12) E.P. 1898. X964 ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of… | ||
| Scan026 | Dirt accumulation in the flywheel guard and potential modifications to prevent clutch failure. | ||
| View original record | X964 Re accumulation of dirt in flywheel guard and failure of clutch (1378 - Mrs Fitzgerald) Mr Johnson 8.7.12. TBB7/L8712. With reference to the attached matter, I have discussed the point with Mr… | ||
| Scan027 | The probable cause of clutch heating and a plan for its replacement. | ||
| View original record | -2- dirt accumulating in this position would be rubbed off by the circumference of the flywheel until what remained would only lightly touch. This process of rubbing off would not cause any great rise… | ||
| Scan028 | Report concerning changing the leather clutch to a fabric one on Chassis 1378 for Mrs Fitzgerald. | ||
| View original record | X964 Re Clutch on Chassis 1378(Mrs Fitzgerald) TBB4/L25712. Mr Wormald. 25.7.12. I send you herewith a report concerning the above car. Will you please see that the leather clutch is changed for a… | ||
| Scan029 | Requesting information on single plate clutches of the De Dion type. | ||
| View original record | Re Single Plate Clutches. IBB16/L25712 Mr Mercer. 25.7.12. Will you please look up immediately information concerning single plate clutches of the De Dion type. All other work (except the completion… | ||
| Scan030 | To Mr. Royce regarding research into single plate clutches from competitor cars. | ||
| View original record | Re Single Plate Clutches. file TBB/M1/L30712. Mr Royce 30.7.12. Acting on your instructions received through Mr Barrington, I have made a search through various recent Motor publications and am… | ||
| Scan031 | The concluding page of a typed document signed by T.S. Mercer. | ||
| View original record | carrying still further. T.S.Mercer. Watermark: DICKINSON BOND LION MADE AT CROXLEY Footer (upside down): R.R. 200A (10M 3T/19) (H)CL 334 3Y.19 C 3622 | ||
| Scan032 | To Mr. Royce regarding descriptions of Panhard, De Dion, and Arrol-Johnston plate clutches. | ||
| View original record | Clutches (File) Mr Royce 13.8.12. TBB6/L13812. X964 I send you herewith descriptions of the Panhard, De Dion and Arrol-Johnston plate clutches prepared by Mr Mercer. This completes the descriptions… | ||
| Scan033 | Small diameter clutch, noting vibration issues at certain speeds. | ||
| View original record | R.R. 512 2 1/2 H) (X. 435. 14.12.11) G. 2223 X964 F354 Section 1300 . 600 Description: Small diameter clutch verg U.724. Date: 23/5/12. Report: Sheet from Y/O. - Filed Steele - Test report. Date:… | ||
| Scan034 | Recommendation to adopt steel clutch rings as standard following successful experimental testing. | ||
| View original record | Mr Barrington. Sir H R ? O.O. admitted 21.8.12 RE STEEL CLUTCH RINGS We have now run these for some time on Experimental Cars and recommend same should be adopted as standard. We have run these on one… | ||
| Scan035 | The successful testing of steel clutch rings, leading to their approval for standard use. | ||
| View original record | Mr Royce 21.8.12. Cone Clutch. (tests of steel clutch rings). TBB3/L21812. X357 Mr Platford reports that one of these clutch rings has run for 2500 miles, including a considerable amount of hill… | ||
| Scan036 | Note confirming the standard use of steel clutch rings following successful testing. | ||
| View original record | Cone Clutch. (Re use of steel for clutch rings) TBB5/L21812. Mr Nadin 21.8.12. Mr Platford reports that the steel clutch rings which hehas had on test have given every satisfaction. One of these rings… | ||
| Scan037 | From F.H.R. (Frederick Henry Royce) expressing satisfaction with the results of cone clutch tests on steel clutch rings. | ||
| View original record | Copy sent to Mr Johnson 23/8/12 R.R. 475 (too H) (X 896. 3.5.12) E.P. 1780. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO.… | ||
| Scan038 | The standardization of steel clutch rings for cone clutches, quoting Mr. Royce. | ||
| View original record | Mr Nadin. Mr Platford. Mr Wormald. X357 26.8.12. Cone Clutches. (Re steel clutch rings) TBU4/L26812. With reference to the proposed standardization of steel clutch rings for our cone clutch, Mr Royce… | ||
| Scan039 | To Mr Johnson regarding a press cutting about cone clutches. | ||
| View original record | Re Cone Clutches. Mr Johnson TBB8/L27812. 27.8.12. Do you not think the attached requires an answer ?. Attached:- Cutting from The Motor of August 27th.1912. Handwritten note: X 984 | ||
| Scan040 | To Mr Bailey regarding a report from Mr Hives about steel rivets on a clutch cone showing wear on chassis 1926. | ||
| View original record | Re Clutch Cone. TBB8/L26912. Mr Bailey 26-9-12. Please note that Mr Hives reports that the steel rivets holding the clutch cone to the hub show some signs of having worked about on chassis 1926. This… | ||
| Scan041 | Extract from Mr. Platford's report on cars in the Spanish Grand Prix regarding the clutch. | ||
| View original record | X.1372. changed on file EB 964 Extract from Mr. Platford's report re Cars in Spanish Grand Prix - in X. 387. A lighter clutch would certainly have been an advantage as regards changing gear, chiefly… | ||
| Scan042 | Technical description and critique of an expanding band type clutch and a note on the gearbox. | ||
| View original record | CLUTCH. Extract from. Wor/Hy/L 24.11.13. The clutch is of the expanding band type. The band is of steel strip about 1/16th thick and has a leather strip rivetted to it. The diameter of the band is 13"… | ||
| Scan043 | Axle 'periods' or vibrations on test cars, identifying a potential solution by using a damped spring type engine coupling. | ||
| View original record | Mr. Johnson. X964 COPY. 7th. February. 1914. RE. AXLE "PERIODS". --------------------- With cars now on test, we are having trouble with axle "periods". This "period" is similar to the one we had with… | ||
| Scan044 | Issue of 'jaggering' clutches and the effect of different engine couplings and oiling. | ||
| View original record | Mr. Johnson. C O P Y. February 7th. 1914. re "Jaggering" Clutches. -------------------- With the cars now on test I notice that there is a general tendency for the clutches to "jagger", i.e. when… | ||
| Scan045 | Car's clutch-related 'jaggering' trouble and the resulting strain on the chassis and transmission. | ||
| View original record | -2- I also appreciate the fact that experiments are in hand to make the clutch more oil-retaining. What I wish to bring to your notice is the fact that we are delivering to customers a car which in… | ||
| Scan046 | 'axle period' issue, the refusal to pass axles with this fault, and potential solutions involving different coupling types. | ||
| View original record | COPY. Re - AXLE PERIODS. J. WOR11/T9214. With reference to Mr. Platford's sheet re axle periods - it is a fact that Mr. Platford demonstrated that this period was eliminated by replacing the solid… | ||
| Scan047 | Whether to continue sending out cars until a permanent cure for an issue is found, referencing double brake axles. | ||
| View original record | -2- certainly to our mind the reason why we should continue to send out cars until we find a permanent cure. We should also remember that we have had this period ever since we introduced double brake… | ||
| Scan048 | Clarification regarding Mr. Platford's intentions about passing axles to avoid misunderstanding. | ||
| View original record | COPY. J.Wor13/T9214. Mr. Platford has read this sheet, and I think in the main agrees with its contents. He thinks his sheet might have mislead you, inasmuch as it is not his intention, he states, to… | ||
| Scan049 | Issue of axle periods and seeking a decision on engine coupling types. | ||
| View original record | ( C O P Y ) Re Axle Periods. CJ1/IW10214. EP. With reference to the attached memorandum, re. Axle Periods, we must not stop output because of these periods. It is an undersirable thing to have on a… | ||
| Scan050 | Studying a damped spring type engine coupling to solve clutch 'jaggering' issues without stopping output. | ||
| View original record | In the meantime, output must not be stopped, and the Experimental Dept. must study the question as to whether there is any method of damping the period which has not the disadvant- ages which attach… | ||
| Scan051 | Use of a damped spring type coupling to cure jaggering clutches and vibration. | ||
| View original record | ( COPY ) CJ2/IW10214. Re Jaggering Clutches. EP. With reference to the attached memorandum re. Jaggering Clutches, as until we have ascertained the method of making the clutch more oil retaining and… | ||
| Scan052 | Issues with axle 'periods' and 'jaggering' clutches, and further experimental work. | ||
| View original record | X/1166 COPY. Re Axle "Periods" and "Jaggering" Clutches Wor. EP10/W11214. Na. The attached are copies of sheets I have sent to Mr Johnson and his replies, - shall be glad if you will deal with same as… | ||
| Scan053 | To Mr Hives requesting a report on axle periods and jaggering clutches. | ||
| View original record | Wor/Mcrl/L12214. Re Axle Periods & Jaggering Clutches. Hy. 12-2-14. Mr Hives. We attach herewith 2 reports from Mr Platford dated 7/2/14, also Wor13/T9214, Wor11/T9214, CJ1/IW2214, CJ2/LW10214 and… | ||
| Scan054 | To Mr Johnson regarding issues with axle periods and clutch jaggering, recommending against spring couplings and proposing further experiments. | ||
| View original record | Wor/EH19/L17214. Mr Johnson. February 17th. 1914. X1146 Re Axle periods & Jaggering Clutches, With reference to axle periods and clutch jaggering on cars with double brake axle, I consider that we… | ||
| Scan055 | To Mr Johnson about issues with axle periods and jaggering clutches. | ||
| View original record | Wor/Hy20/L17214. Mr Johnson. February 17th. 1914. X 1146 Re Axle periods & Jaggering Clutches. With reference to your recent correspondence with Mr Platford on the above subject, the axle period in… | ||
| Scan056 | Note on clutch jaggering, its cause, cure, and the consequences for the spring coupling. | ||
| View original record | Wor/Hy20/L17214. Sheet. 2 The jaggering only occurs when the clutch is dry and the clutch should not be dry. Jaggers can be quite cured by applying oil to the clutch face. The spring coupling only… | ||
| Scan057 | Extract concerning the poor performance of the clutch in chassis 7-CA, comparing it to model 49-GB. | ||
| View original record | R.R. 225 a (400 T) S.C. 538. 15-5-16. G. 1546. R14/W9916. September 9th 1916. EXTRACT FROM RE CHASSIS NO -7CA. X.964 CLUTCH. I was much surprised that the clutch was so bad. I found it propped open… | ||
| Scan058 | Inquiring about the details of the E. Baudaux patent clutch. | ||
| View original record | To Mr. Hives. from Bn. x964 Chassis Bn6/P8.5.19. RE PATENT CLUTCH E. BAUDAUX, PARIS. x964 I understand from EP. that you have particulars of clutch of this name. Is there anything in it ? BN. | ||