Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 38\6\        Box Selection

IdentifierEntry
Scan001 Request to manufacture a Condor Water Pump Spindle in stainless steel for a comparative test.
View original record R.M. 835 a (200 T) (S.E. 527. 21-2-18) G. 2129 To Mr Coverley. c. to EFC. c. to EH. X 3380 Da9/CB20918. Condor Water Pump Spindle in Stainless Steel Would you make a Pump Spindle - E.16176 in Firths…

Scan002 List of experimental parts that have been fitted to the second Condor engine No.2.
View original record To EFC. from HRC. X.3380 RHC1/LG6.3.19. X.3254.-RE SECOND CONDOR ENGINE. Will you kindly note the following experimental parts have been fitted to Condor engine No.2. X.3379.- Valve & Wedge with…

Scan003 Conference memo detailing the arrangement for America to produce units for Eagle engines.
View original record From Wor. to [strikethrough]Wd.[/strikethrough] " " [strikethrough]Sy.[/strikethrough] " " [strikethrough]EH.[/strikethrough] " " [strikethrough]Mr. Swift.[/strikethrough] " "…

Scan004 Agreement for an order of Eagle Engines and the associated procurement of materials.
View original record -2- Wor2/T21017. Mr. Royce has agreed that with the exception of the modifications mentioned in his memo: E4/W27917 - there is no reason why we should not ask Air Board to order another 1000 Eagle…

Scan005 Modifications to the 'Eagle' engine specification regarding the camshaft and driving pulley.
View original record R.R. 238 A (70 H) (S.D. 442. 9-5-17) G 1965. COPY. To Wor. from E. St.Margaret's Bay, Sept. 28th. 1917. Re - Modified Specification of "Eagle" for immediate future. E2/W28917. With reference to the…

Scan006 Request to investigate rumors of faulty crankshafts supplied by Wyman & Gordon due to cracks or hair lines.
View original record X3387 March 23, 1918. Na3/K23318. TO MR. HALL FROM Na. Copies to: Mr. Ormald Mr. Whitehead Mr. Hives We have heard some rumors here that the crankshafts made by Wyman & Gordon, Worcester…

Scan007 Request for information about crankshafts made by Wyman & Gordon.
View original record R.R. 235n (200 T) (S.D. 408. 26-4-17.) Bm. 2/156/12. Y2473 Wor. for Mr. Hall. c. to Wor. c. to Mr. Hives. 8th April, 1918. Wd13/NJ8418. Crankshafts made by Wyman & Gordon. Referring to Mr. Nadin's…

Scan008 68% defect rate for crankshafts manufactured by Wyman & Gordon.
View original record H.H. 233a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X3381 Mr. Wall (Lab). c.to Mr. Hives. 15th April.1918. Wd18/NJ15418. Crankshafts made by Wyman & Gordon. I confirm my note Wd13/NJ8418, of 8th…

Scan009 The examination and status of 500 B.HP crank forgings, including a chemical analysis of the material.
View original record C O P Y. I have to report that I visited Coventry with Mr.Woods (D.A.I.) with a view to examining the 500 B.H.P. Crank Forgings from Messrs.Hyman & Gordon, and identifying same with their test reports…

Scan010 Acceptance and rejection numbers of shafts from various casts, with a focus on defective steel.
View original record - 2 - The number of shafts accepted from the various casts by Messrs.Daimler and Messrs.Siddeley Deasy, are as follows:- Cast Number. Accepted. No. 14996 6 " 15396 10 " 15449 12 " 15450 2 " 15461 37…

Scan011 Hair cracks in crankshafts and the A.I.D.'s exceptions to them.
View original record R from BY. c. CJ. c. Wor. c. EP. c. EH. X 3381 USA June 17th 1918. BY12/P17618. Hair Cracks in Crankshafts. Attached herewith please find copy of a cable received from Mr. Nadin. There seems to be…

Scan012 Acceptance criteria for hair cracks on American engine cranks.
View original record X. 3381 OJ. From BY. C. H. C. Mor. C. EP. C. EH. June 20. 1918. BY15/P20618. AMERICAN ENGINES - RE HAIR CRACKS. Referring to your secretary's conversation on the telephone this morning, I have called…

Scan013 Acceptance of hair cracks in crankshafts for American engines, relaying Mr. Royce's opinion on the matter.
View original record R.R. 285 a (200 T) (S.E. 537. 21-3-18) G. 2129 X3381 U. June 20. 1918. BY4/P20618. Wor. [struck through] from BY. EH. Re Hair Cracks in Crankshafts - American Engines. CJ's Secretary spoke to me on…

Scan014 Suggestion to hold a conference with A.I.D. Chiefs to consider a reply to Mr. Nadin's cable.
View original record .U In view of this wire, CJ suggests that we hold a Conference and probably invite the A.I.D. Chiefs at our works to attend, in order to definitely consider a reply to Mr Nadin's cable. This…

Scan015 Letter regarding the shipment of twelve crankshafts with minute defects from the U.S.A. to Derby, England.
View original record X 3381 COPY. ROLLS ROYCE LIMITED, 220, Union Building, Euclid Avenue, Cleveland, Ohio, U.S.A. NAL/K2718. July 2nd. 1918. To BY. from NA. c. to WD. RE DEFECTIVE CRANKSHAFTS. Many thanks for your cable…

Scan016 Quality standards for American-made crankshafts and the need to inform suppliers of A.I.D. inspection criteria.
View original record H.R. 255 a (10) T) (S.E. 427, 21-2-18) G. 2119 X3381 To Wer. from BY. c. EH. c. BP. c. [strikethrough]Mr Pope.[/strikethrough] c. [strikethrough]Mr Hargreaves.[/strikethrough] July 22. 1918.…

Scan017 Cable confirmation advising against sending flawed crankshafts for testing as they are certain to be scrapped after a recent failure.
View original record c.c. to Mr. Wormald. c.c. to Mr. Platford. c.c. to Mr. Hives. c.c. to Mr. Hargreaves. CONFIRMATION OF CABLE. X338/ TO ROLLS ROYCE, UNION BUILDING, CLEVELAND, OHIO. NADIN RE YOUR LETTER JULY SECOND…

Scan018 Letter regarding flawed crankshafts for American engines and whether they should be sent for inspection.
View original record R.R. 235 a (100 T) (S.E. 5a?, 21-2-18) G. 2129 X 3887 Wor. from BY. EP. EH. c.c. R. c.c. Mr Hall. August 14. 1918. BY20/P14818. AMERICAN ENGINES. RE CRANKSHAFTS. I am attaching herewith copy of a…

Scan019 Letter regarding defective crankshafts and a method for detecting steel defects using nitric acid.
View original record July 26. 1918. Na3/K26718. Copy to Oy. TO MR. BAILEY FROM Na. I have today received your cable b-b, re the defective crank-shafts which we have forwarded to you. I wish to advise you that these shafts…

Scan020 To Mr. Bailey regarding the inspection of every billet of steel for propeller shafts, connecting rods, and hubs.
View original record -2- TO MR. BAILEY FROM Na. July 26. 1918. We are now inspecting every billet of steel intended for propeller shafts, connecting rods, and hubs, before it leaves the mills. We have of course, in the…

Scan021 The arrival of 12 American crankshafts and their subsequent examination for flaws.
View original record R.R. 23B B (200 T) (S.E. 527. 21-2-18) G. 2129 X. 3881 August 26, 1918. BY12/P26818. EH. from BY. c. Wor. c. EP. c. Mr Hall AMERICAN ENGINES. RE CRANKSHAFTS. The 12 crankshafts, which we were advised…

Scan022 The inspection and assessment of American crankshafts with flaws.
View original record To Wor. from EH. c. to BY. X.3381 EH1/LG4.9.18. 4th. Sept. 1918. X 3381 REPORT ON AMERICAN CRANKSHAFTS WITH FLAWS. We received 8 Crankshafts from America with labels attached stating where they had…

Scan023 Water leaks in American cylinders and the importance of welding.
View original record Extract from EH3/LG24.9.18. CYLINDER WATER LEAKS. X.3381.-American Cylinders. Welding is such a vital item on our engines that we consider we ought, at any cost, to make it the best job possible. I…

Scan024 Suggestion to investigate sourcing cylinder jacket pressings from America due to their superior accuracy.
View original record H.H. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. TO WOF. from EH. x3381 X3667 EH1/LG3.10.18. 3rd. Oct. 1918. RE AMERICAN CYLINDERS. The pressings for the jackets on the American Cylinders seem to…

Scan025 Resolving cylinder water leaks, discussing production challenges like improving welding, using diluted female labour, and a shortage of inspectors due to military conscription.
View original record To EH. from Wor. c. to Mr. Swift. c. to BY. Copy. Wor3/T3.10.18. X.3381 4 RE CYLINDER WATER LEAKS. I am very interetsed in your memo - EH3/LC24918 and I think we should do as you suggest. I have…

Scan026 Parts requisition for an experimental test.
View original record To B.P. From EH. X.3381 EH3/LG18.10.18. 18th. Oct. 1918. We require for Expl: Test:- 12 American Pistons 12 Valves 3 "A" side cylinders 3 "B" side cylinders. Will you please arrange that these parts…

Scan027 Test report on 'Eagle' engine cylinders that were manufactured in America.
View original record To R. from EH. c. to CJ. c. to E. c. to BY. c. to CY. c. to Na. c. to Mr. Bagnall. EH1/LG.251018 x-338/ X 338/ TESTS ON "EAGLE" CYLINDERS MADE IN AMERICA The appearance of these cylinders is very good…

Scan028 Engine cylinder leaks and observations after an 18-hour test run.
View original record Contd:- Cyl No. Remarks No.4 A. Leak from back of exhaust flange after 9 hrs. running. Leak from vertical seam exhaust side 13 hours. No.5 A. Leak from back of exhaust flange after 11 hrs. running.…

Scan029 Test report detailing the results of cylinder leakage tests.
View original record results:- Cyl. No. Remarks No.1 A. Leak from exhaust flange after 8 hrs. running. No.2.A. O.K. No.3.A. Leak from Exhaust flange after 14 hrs. running No4. A. O.K. No.5.A. Leak from exhaust flange…

Scan030 Continued memo discussing cylinder leakage issues, particularly at the joints of vertical seams and valve band welds.
View original record Contd;- round the flanges, or the vertical seams, the most frequent place for laekages is in the joint where the vertical seam joins the weld round the valve band. This is a place we get most leaks on…

Scan031 The failure of non-compliant planet wheel ball bearings during preliminary testing for American engines.
View original record X.3381 To Hs. from HY. c.c. Oy. c.c. WH. c.c. Mr Hargreaves. October 25. 1918. BY7/P251018. AMERICAN ENGINES. EPICYCLIC GEAR. PLANET WHEEL BALL BEARING. Referring to my cable of the 24th inst., on the…

Scan032 The rewelding of American engine cylinders and the policy on connecting rods.
View original record R.R. 238 a (100 T) (S.E. 537. 21-5-18) G. 1129 Mr [redacted] from HY. c. ER. c. [redacted] X3381 October 25. 1918. BY17/P251018. AMERICAN ENGINES. CYLINDERS & CONNECTING RODS. In regard to the…

Scan033 Short memo regarding the remetalling of American rods to maintain an output programme.
View original record We are now remetalling a certain number of American rods and sending same through to keep up our output programme. BY. T.

Scan034 The re-welding requirements for American cylinders.
View original record To BY. From EH. EH3/LC28.10.18. 28th. Oct. 1918. X.3381 RE - AMERICAN CYLINDERS. We notice on your sheet BY17/P251018., that American cylinders are only being re-welded on the vertical seams. We…

Scan035 Modifying the re-welding scheme for American cylinders to address newly discovered leaks.
View original record R.R. 235 b (200 T) (S.E. 537. 21-2-18) G. 2129 X3381 Mr Swift from BY. c. Mr Eastwood. c. EH. c. CF. c. Mr Hargreaves. October 29. 1918. BY8/P291018. AMERICAN CYLINDERS. Referring to my memo…

Scan036 The testing of American-made parts for an 'Eagle' engine, focusing on the condition of the connecting rods.
View original record H.H. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. To R. from EH. c. to CJ. c. to E. c. to EY. c. toNa. c. to OY. c. to Mr. Bagnall. EH1/LG.301018. ---------------- RE "EAGLE" PARTS MADE IN AMERICA+…

Scan037 Inspection report on engine components including connecting rods, pistons, valves, and crankshaft.
View original record H.H. 235a (500 T) (S.D: 408. 26-4-17.) Bm. 2/158/13. Contd:- This could, of course, be done in America and the rods sent over to their own crankshaft. We found on 4 of the rods that the white metal…

Scan038 Continuously running an engine and adding new American parts.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. EH1/LG.301018. Contd:- We are keeping this engine running every day and intend to add further American parts as they arrive. EH.

Scan039 The superior rust-resistant Armco Iron material used for water jackets on American engines.
View original record R.R. 23A B (200 T) (S.E. 527. 21-2-18) G. 2149 5 NOV 1918 X 8381 C. from BY. C. [redacted] C. Mr. [redacted] C. RFC. C. Mr Hives. RECEIVED November 5. 1918. BY3/F51118. AMERICAN ENGINES. RE WATER…

Scan040 Request to send one American Crankshaft from London Road Works for experimental purposes.
View original record L.3381 To Mr. Pope from EH. EH2/LG6.11.18. 6th. Nov. 1918. Please have sent up from London Rd. Works 1 American Crankshaft for experimental purposes. EH.

Scan041 The failure of an 'Eagle' engine fitted with American-made parts, specifically a broken crankshaft.
View original record R.H. 235a (500 T) (S.D. 403. 28-4-17.) Bm. 2/156/13. X 3381 To R. from EH. c. to CJ. c. to E. c. to BY. c. to Na. c. to OY. c. to Mr Bagnall ----------- EHL/LG.61118. 6th Nov. 1918. ----------- RE…

Scan042 Issues and appearance of butt-welded cylinders.
View original record To R. from EH. c. to CJ. c. to E. c. to BY. ---------- X.3391 X.3381 RE CYLINDER WELDING+ We have made up cylinders with the butt type of weld. They have still to be finished machining before we can…

Scan043 The shipping and urgent testing of planet wheel ball bearings for American engines.
View original record R.B. 235a (500 T) (S.D. 408. 28-4-17.) Bm. 2/156/13. X.3381 Mr. Eastwood from BY. c. to Mr. Hargreaves. c. to EH. c. to EP. c. to EFC. 8th November. EY2/P.81118. X.3403 X.3381 AMERICAN ENGINES -…

Scan044 Investigation into a broken American crankshaft, analysing its material properties and comparing its failure mode to a similar case.
View original record X3381 EH. from EY. November 19.1918. PY3/P191118. RE AMERICAN CRANKSHAFT WHICH BROKE DURING EXPERIMENTAL RUNNING. I cabled for the test figures of crankshaft 1108. Mr Olley has replied giving the…

Scan045 Confirming the dispatch of prints showing a broken American Cam-shaft.
View original record X3381 Srn/W2/VM231118. 23. 11. 18. H. As requested we send herewith four more prints (two of each negative) of the broken American Cam-shaft. Srn/N.W.

Scan046 Analysis of a fractured American crankshaft from an 'Eagle' engine.
View original record EH2/LGW 4.12.18. 4th December 1918. To R. from EH. c. to CJ. c. to OY. c. to Na. RE FRACTURE ON AN AMERICAN CRANKSHAFT X.3381. Attached herewith are photographs which shew the fracture of this…

Scan047 Fracture on an American crankshaft and defending the suitability of the steel used.
View original record X 2387 ROLLS-ROYCE, LIMITED WORKS OFFICE IN U.S.A. 220 UNION BLDG., EUCLID AVE., CLEVELAND, O. TO: Mr. Hives FROM: Na SUBJECT: FRACTURE ON AN AMERICAN CRANKSHAFT. DATE: December 21, 1918. REFERENCE:…

Scan048 Criticising a report on broken crankshafts for lacking crucial details about the condition of the shafts before testing.
View original record ROLLS-ROYCE, LIMITED WORKS OFFICE IN U. S. A. 220 UNION BLDG., EUCLID AVE., CLEVELAND, O. Handwritten note: Mr Hives, please reply to Na. Return this with notes once to F. 10/2/ TO: C.J. (Copy to…

Scan049 American cylinder parts, specifically requesting the immediate dispatch of water jackets upon receipt.
View original record R.R. 255 a (500 T) (S.E. 427, 21-2-18) G. 2129 X3381 To Mr. Hives from BY. To Mr. Eastwood. To Mr. Swift. 30th. December, 1918. BY1/T301218. AMERICAN PARTS. CYLINDERS. RE WATER JACKETS. We attach…

Scan050 Letter regarding the shipment of sample water jackets, detailing alterations, price, and materials.
View original record COPY. ROLLS ROYCE LIMITED, 220, UNION BUILDING, EUCLID AVENUE, CLEVELAND, OHIO. U.S.A. December 10th. 1918. OY1-F101218. BY from OY. Copies R. and E. RE SAMPLE WATER JACKETS. 1. We are to-day shipping…

Scan051 Suitability of a material with .04% carbon for drawn pressing, page 2.
View original record - 2 - about .04% carbon, which seems quite suitable for this type of drawn pressing. OY. (SIGNED) M. Olley.

Scan052 The results of endurance testing on American-made 'Eagle' engine parts, including connecting rods, pistons, and valves.
View original record To R. from EH. EH10/T1.1.19. 1st. January 1919. "EAGLE" PARTS MADE IN AMERICA. X.3381. We have completed 100 hours running on a set of connecting rods made in America. These rods were fitted on…

Scan053 Reporting a broken crankshaft on an 'Eagle' engine during epicyclic gear destruction tests.
View original record X.338/ To R. from EH c. to CJ. c. to E. c. to BY. c. to Ba. EH3/LC13.1.19. 13th Jan. 1919. X. 3360. TESTS ON "EAGLE" EPICYCLIC GEAR X.3381. We have broken the Crankshaft on the "Eagle" engine which we…

Scan054 Responding to an enquiry about American pistons, their testing in an engine with a new Epicyclic Gear, and required modifications.
View original record R.R. 235 B (200 T; (S.F. 103, 25-10-18) G. 2244. X.3381. X.3372. EH7/LG.27.1.19. To Wor from EH. ----------------- With reference to your enquiry on American pistons, the engine that has just…

Scan055 Investigation into broken American crankshafts.
View original record To Na. from EH. c. to BJ. X.3381. EH1/LG21.2.19. 21st. Feb. 1919. With reference to your note Na3/K6219 Re Broken Crankshafts, when we had the first American Crankshaft broken we sent you the number…

Scan056 The testing of an American crankshaft from Halcomb Steel Co. for potential use in commercial Eagle engines.
View original record R.R. 535 B (200 T) (S.P. 100. 23-10-18) G 2244. X3381 U.W. EH. from BY. C. Mr Rowsell C. Mr Rubson. BY20/P11.6.19. RE AMERICAN CRANKSHAFTS. ------------------------ Will you kindly arrange to hand…

Scan057 Query seeking clarification on the number of American-made crankshafts that broke during the experimental running of Eagle engines.
View original record 97C. R R 235 a (2000) (8 Y. 100 25-10-18) G. 2244. EH. from BY. BY13/P17.6.19. X. 3381 EAGLE ENGINES. RE AMERICAN MADE CRANKSHAFTS. Will you kindly let me know, as requested verbally, whether it was 2…

Scan058 Progress and testing of English versus American-made crankshafts for 250 Eagle engines.
View original record EP. from BY. COPY. c. Bn. c. Hs. c. Wor. BY8/P11.9.19. X.3381 CRANKSHAFTS FOR 250 EAGLE ENGINES NOW IN PROGRESS. Referring to EP/T5/F10.9.19., we have so far only definitely instructed English made…

Scan059 Tests on American crankshafts for 250 Eagle engines, concluding they are suitable for use.
View original record To By. from Bn. ~~c. to Mor.~~ ~~c. to RP.~~ c. to Hs. X2473 Bn9/W23919. RE CRANKSHAFTS FOR 250 EAGLE ENGINES. --------------------------------- With reference to By8/P11919, the tests carried out in…

Scan060 Approving the use of specific parts for American Epicyclic Gears following tests.
View original record Mr Purdon from BY. [Struck through] Mr Goodall. [Struck through] c. Hs. RE AMERICAN EPICYCLIC GEARS. -------------------------- Will you kindly note, that as a result of the test carried out by Mr…

Scan061 Pitting and corrosion of engine cylinders and proposed experimental treatments.
View original record X3388 To Mr. Chandler. To Mr. Hives. from BY. c. to Wor. c. to Mr. Hall. 27th. September, 1918. BY5/T27918. RE CYLINDERS. In view of the fact that our cylinders show marked pitting or corrosion when a…

Scan062 The production difficulties of the Condor water pump rotor, suggesting a cast alternative.
View original record X.3382 WATER PUMP ROTOR. Condor Extract from EH2/LG24.9.18. The water pump rotor with the loose blades is not easy to produce. We have not been able to set the blades true enough to avoid truing up…

Scan063 Assigning experimental numbers for Condor epicyclic gear and roller bearing experiments.
View original record To Da. from EFC. X 3383 EFC/AT26.8.19. X.3383.-CONDOR EPICYCLIC GEAR BALL BEARING IN PLACE OF ROLLER BEARING. X.3384.-ROLLER BEARING WITH SMALL ROLLERS & NO CAGE. Will you kindly note that we have…

Scan064 Confirmation of a telegram regarding testing a Condor reduction gear with specific Hoffmann ball bearings.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. CONFIRMATION OF TELEGRAM 24th Sept. 1918. X. 3383 ROYCAR DERBY HIVES TEST CONDOR REDUCTIO GEAR WITH HOFFMANN BALL BALL BEARINGS NO.530 SPIGOTTED…

Scan065 Failure of 'Condor' reduction gear planet bearings and proposing a switch to ball bearings.
View original record H.H. 835A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/15. x 3383 TO DA ) from E. TO EH ) c. to EFC. 25th Sept. 1918. E1/G25918. X.1827 X.3383 X.3384. RE "CONDOR" REDUCTION GEAR PLANET BEARINGS It is…

Scan066 Modified roller bearing and ball bearings with spigotted cages for testing purposes.
View original record R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/15. -2- El/G25.9.18. Contd another roller bearing with small rollers and no cage, to the proportions used by Messrs. Hoffmann. We find that their list…

Scan067 Confirmation of a telegram regarding an urgent test on an epicyclic ball bearing.
View original record X.3383 CONFIRMATION OF TELEGRAM. 30th September, 1918 ROYCAR DERBY. HIVES TEST OF EPICYCLIC WITH. BALL BEARING REPLACING ROLLER ON PLANETS MOST URGENT AND IMPORTANT. ROYCE.

Scan068 Error in a drawing concerning a non-spigotted cage for the planet ball bearing on the 'Condor' Reduction Gear.
View original record X.3383 To Da. from E. c. to EY. c. to EH. X.1827. X.3383. 2nd. Oct. 1918. E14/G2.10.18. RE PLANET GEAR BALL BEARING. It is as well to draw your attention to the fact that one of our LeC. drawings of…

Scan069 Delay in obtaining ball bearings to replace roller bearings for 'Condor' and 'Eagle' epicyclic gears.
View original record R.R. 235A (500 T) (S.D. 408. 28-4-17.) Bm. 2/156/15. To R. from EH. c. to CJ. EH4/LG1.10.18. X. 3383. With reference to your telegram re trying ball bearings in place of roller bearings on "Condor"…

Scan070 The replacement of roller bearings with ball bearings on the 'Condor' engine's epicyclic gear due to scoring.
View original record To R. from EH. c. to E. c. to By. c. to CJ. EHL/LG4.10. 18. 4th Oct. 1918. X.3383.C. RE+ "CONDOR" ENGINE+ We have fitted Hoffmann Ball Bearings in place of the Roller Bearings to the "Condor"…

Scan071 Notification regarding the receipt of Standard Ball Bearings for 'Eagle' Epic Gears.
View original record By Mr. Clark. 15.10.18. Wd/EM3/E151018. X.3383 "Eagle" Epic: Gears. Please note, we have received from Messrs. Hoffmann 12 med: type Standard Ball Bearings No.325 25 x 62 x 17 m/m. These may be had on…

Scan072 The performance of ball bearings replacing roller bearings on the epicyclic gear of 'Condor' and 'Eagle' engines.
View original record X.3383. To R. from EH. c. to CJ. c. to E. c. to BY. C. to Da. EH3/LG.171018. RE BALL BEARINGS ON EPICYCLIC GEAR IN PLACE OF ROLLER BEARINGS+ X.3383/C/E. X.1927. The "Condor" engine hag run for 6 hours…

Scan073 Testing ball bearings in place of roller bearings on the epicyclic gear for Eagle and Condor engines.
View original record R.R. 235 a (200 T) (S.E. 527. 21-2-18) G. 2129 To R. from EH. c. to CJ. c. to E. c. to BY. c. to Da. EH4/LG221018. ------------- X. 3383 - BALL BEARING IN PLACE OF ROLLER BEARINGS ON EPICYCLIC GEAR.…

Scan074 The testing and failure analysis of Hess-Bright ball bearings for planet wheels.
View original record X.3383 To R. from EH. c. to CJ. c. to E. c. to BY. c. to OY. EH2/L.231018. X.3383 RE-HESS-BRIGHT BALL BEARINGS X 3403 FOR PLANET WHEELS The above bearings were sent to us from America by Mr. Olley.…

Scan075 Investigation into the failure of ball bearings substituted for roller bearings on an 'Eagle' epicyclic gear.
View original record H.R. 235A (500 T) (S.Q.) 408. 26-4-17.) Bm. 2/156/15. X 2403 [crossed out] X 3383 EHL/LG.241018. To R. from EH. c. to CJ. c. to E. c. to BY. c. to Ds. X.3383. X.2403 [crossed out] BALL BEARINGS IN…

Scan076 Bearing failures during an endurance run and the trial of replacement parts.
View original record H.H. 235a (500 T) (S.D). 408. 26-4-17.) Bm. 2/156/13. Contd:- an endurance run, but more with the idea of obtaining useful information. We know what the conditions are on the plain bearings and we…

Scan077 The failure of ball bearings compared to roller bearings in the epicyclic gear of an 'Eagle' engine.
View original record H.R. 235a (500 F) (S.D. 408. 28-4-17.) Bm. 2/156/13. X.3383 To R. from EH. c. to CJ. c. to E. c. to EY. FH3/LG.61118. 6th Nov. 1918. X.3383 RE - BALL BEARINGS IN PLACE OF ROLLER BEARINGS ON EPICYCLIC…

Scan078 Failures in the Condor engine's epicyclic gear, including broken bearings and bolts, and outlining plans for further testing.
View original record X.3383 To R. from EH. c. to CJ. c. to E. c. to By. c. to Da. EH2/LG8.11.18. RE CONDOR ENGINE. X.3254. X.3383. We find that the ball bearings in place of the roller bearings on the epicyclic gear are…

Scan079 Typed copy of a telegram from Mr. Royce with instructions for the Condor engine and reduction gear.
View original record X.3383 To EH. " EFC. " By X.3383 X.3262 X.1863 X.3410 Dal/CB9.11.18. Please note we have received the following telegram from Mr. Royce.- DAY. "RE CONDOR BY USING SHORTER NUTS AND FILING CYLINDER YOU…

Scan080 Message from Hives to Royce at West Wittering regarding failing ball bearings on a Condor engine.
View original record X.3383C. 9.11.18. ROYCE WEST WITTERING. BALL BEARINGS FITTED IN PLACE OF ROLLER BEARINGS ON CONDOR ARE BADLY WORN BALLS BROKEN WHAT TYPE BEARINGS SHOULD WE REPLACE THEM WITH. HIVES.

Scan081 Confirmation of a telegram discussing the Northcliffe chassis, engine choice, meetings, and component design.
View original record X 3383 CONFIRMATION OF TELEGRAM. 11.11.18. ROYCAR DERBY. X.3383. X.2273. X.3389. DAY HIVES AGREE TO THE NORTHCLIFFE CHASSIS BEING COMPLETED WITH A HAWK ENGINE ON THE UNDERFRAME (STOP) IT DOES NOT…

Scan082 The incorrect use of ball bearings instead of roller bearings in the 'Condor' reduction gear.
View original record To Da. from EH. c. to Bn. FH1/LG28.5.19. X.3399 X.3383✓ RE "CONDOR" REDUCTION GEAR We have just noticed that the latest .55 reduction gear for the "Condor" engine has ball bearings each end of the…

Scan083 Failure of 'Condor' reduction gear planet bearings and suggesting a switch from roller to ball bearings.
View original record H.H. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X. 3384 To DA TO EH } from E. c. to EFC. 25th Sept. 1918. E1/G25918. X.1827 X.3383 X.3384. RE "CONDOR" REDUCTION GEAR PLANET BEARINGS It is…

Scan084 Roller and ball bearing designs, referencing Hoffmann's proportions and proposing a modified version for a test.
View original record H.R. 235a (500 T) (S.D. 403. 28-4-17.) Bm. 2/156/13. -2- E1/G25.9.18. Contd another roller bearing with small rollers and no cage, to the proportions used by Messrs. Hoffmann. We find that their list…

Scan085 Cancellation note for an experiment on a roller bearing with a small roller and no cage.
View original record X3384 18.9.19. X.3384.--ROLLER BEARING WITH SMALL ROLLER AND NO CAGE. This experiment may now be cancelled. AT.

Scan086 The recoating of cylinder jackets and external parts to prevent rust and corrosion.
View original record R.R. 235 B (200 T) (S.E. 427, 21-2-18) G. 2129 C.F.E. EH. from BY. c. Wor. C. Mr Chandler. X.3388 | L.X. RECEIVED October 5, 1918. BY/P51018. RE COATING INTERIOR OF JACKETS AND EXTERNAL PARTS OF…

Scan087 Re-coating the interior of cylinder jackets to prevent rust and the results of testing the coating.
View original record To Wor from EH. c, to BY. EH2/LG.241018. X.3388 - RE COATING INTERIOR OF JACKETS AND PARTS OF CYLINDERS EXPOSED TO WATER TO PREVENT RUST. The cylinders which were received with the coat-ing have been…

Scan088 Successful anti-corrosion treatment for cylinder jackets and a request for more treated cylinders.
View original record To Mr. Swift from BY. C. to EH. c. to EFC. October 25th. 1918. BY16/P251018. [Crossed out: X 3388.] RE CYLINDER JACKET CORROSION. You will remember that I had some cylinders fitted with jackets…

Scan089 The coating of cylinder parts to prevent rust.
View original record To EH. from Wor. 23rd. January 1919. Wor2/T23119. Y3388 Re. Coating Interior of Jackets & External Parts of Cylinders exposed to water to prevent rust. Further to my memo. - Wor12/T221018 - can you…

Scan090 Merits of Cosletizing versus Sherardizing for rust-proofing aero-engine cylinders and cylinder jackets.
View original record 13388 HYS O. wer. C. c. Hs. EYS/H. 9.2.26. ---------------------- PROTECTION OF CYLINDERS AND CYLINDER JACKETS AGAINST RUST. ------------------------------------------------------ As a result of a…

Scan091 Removal of an experimental number for a Condor Reduction Gear with a .66 ratio.
View original record To Da. from EFC. EFC1/AT10.8.18. X.3389.-CONDOR REDUCTION GEAR - .66 RATIO. Kindly note that we have taken out the above Exptl: No. for Condor Reduction Gear .66 Ratio to Lec.1004/5. EFC.

Scan092 Drawings for the 'Condor' Reduction Gear .66 Ratio.
View original record R.R. 235A (500 T) (S.D. 408. 28-4-17.) Bm. 2/156/13. To Da. from E. c. to EH. c. to BY. c. to EFC. E2/G81018. 8th Oct. 1918. X.3389. - RE "CONDOR" REDUCTION GEAR .66 RATIO. We sent you herewith…

Scan093 Confirming one print of LeC.1004 & 1005 for the Condor Reduction Gear has been sent.
View original record To Mr. Coverley, from EFC. 10.8.18 Da16/CE1018. 9.10.18. 3389 RE CONDOR REDUCTION GEAR - 4240 - X1827. Please receive herewith 1 print of LeC.1004 & 1005, for your information. Da.

Scan094 Modifications to the 'Condor' reduction gear.
View original record To DA. C. to BY. " " EH. " " EFC. 10th Oct. 1918 SFP1/G1010181 X.3389. RE "CONDOR" REDUCTION GEAR I send you herewith drawing No. LeC.1008 shewing the planets for the .666 Reduction Gear having roll…

Scan095 Modifications to the 'Condor' reduction gear, specifically replacing bearings and referencing drawing LeC.1008.
View original record COPY. To DA. C. to BY. " " EH. " " EFC. X.3389 10th Oct. 1918 SFP1/G1010181 RE "CONDOR" REDUCTION GEAR+ I send you herewith drawing No. LeC.1008 shewing the planets for the .666 Reduction Gear having…

Scan096 Forwarding a print concerning the Condor Reduction Gear.
View original record R.R. 256 B (200 T) (S E. 527. 21-5-18 1k. To EFC. De3/CB141018. 3389. RE CONDOR REDUCTION GEAR - 4240 - X1827. Please receive herewith 1 print of Lec.1008, for your information. Sent to Mr Coverley…

Scan097 Listing the components required for the Condor Epicyclic Reduction Gear.
View original record DAB/CM161018. ********** SPO. ********** RE CONDOR EPICYCLIC REDUCTION GEAR - 4240 - X3389. ********** .666 Ratio. ********** Please receive herewith - G.6229 - Sun Wheel. G.6230 - Planet. G.6231 -…

Scan098 Accompanying drawings for the Condor epicyclic gear.
View original record TO KM. c. to M. BY. AY. DY. CT. EFC. Mr Coverley. Da6/CB191018. 19-10-18. RE CONDOR EPICYCLIC GEAR - 4240 - X3389. Please receive herewith drawings No.- G.6232 - Rear Half of Planet Cage. G.6233 -…

Scan099 The substitution of gear cutters for the Condor .666 reduction gear.
View original record Ex. To ICI. C. EFC RECEIVED RE CONDOR .666 REDUCTION GEAR - 4240 - X3389. With reference to the new gears -G.6229, 6230 & 6231, please note that until cutters for 8-pitch 20° angle of obliquity are…

Scan100 List of parts for the Condor .666 Reduction Gear, including gear casing and thrust bearing housing.
View original record E.F.C. RECEIVED 23 OCT 1918 De6/CH221018. RR CONDOR .666 REDUCTION GEAR - 4240 - X3309. Please receive - G.6334 - Gear Casing. G.6235/8 - Thrust Bearing housing. 4 sets required. Dn.

Scan101 Parts list for the Condor .666 Reduction Gear.
View original record Da10/CS241018. RE CONDOR .666 REDUCTION GEAR - 4240 - X33891. Please receive herewith - C.6242 - Centre Bolt. C.6243 - Planet Pinion Cone Washer. C.6245 - Special Bolt. C.6246 - BA Stud. C.6247 -…

Scan102 List of drawings for a Condor .666 reduction gear, requesting four sets.
View original record Ex. 28 OCT 1918 Da3/CB221018. RECEIVED E.F.C. RE CONDOR .666 REDUCTION GEAR - 4240 - XS359. Please receive drawings No. G.6239 - ) Propeller Shaft. G.6240 - ) G.6237 - Propeller Shaft Extension.…

Scan103 Instruction to alter the quantity of .666 Reduction Gear sets from 3 to 4.
View original record Ex. 23 OCT 1918 RECEIVED Dms/CBJ231018. RE CONDOR .666 REDUCTION GEAR - 4240 - X3389. With reference to the instructions issued for the .666 Reduction Gear - X3389, please alter quantity from 3 sets…

Scan104 Parts request for a Condor epicyclic gear and propeller shaft extension bush.
View original record 25 OCT 1918 RECEIVED EFC Da15/CR251018. MS CONDOR EPICYCLIC GEAR .666 - 4042 - XS389. Please receive - G.6263 - Bush for Propellar Shaft Extension. 4 sets required. Dn.

Scan105 Design changes for a simplified .55 ratio 'Condor' engine epicyclic gear, referencing drawing Lec.1015.
View original record X 3389 To Da. from E. c. to EH. c. to EFC. c.to EY. E4/G251018. X.3399. X.3389. RE "CONDOR" ENGINE - EPICYCLEC GEAR We send you herewith drawing Lec.1015 showing the simplified version of the .55…

Scan106 Technical memorandum discussing modifications to a .66 ratio gear, referencing the Liberty Epicyclic Gear and the 'Condor' anchorage.
View original record H.R. 235a. (500 T) (S.D.) 408. 28-4-17.) Bm. 2/158/13. Contd:- You will notice that in the last gear sent to you, namely, the one of .66 ratio, the sunwheel anchorage was not universal in this way,…

Scan107 Request to initiate work on the standardisation of a design for a .55 ratio reduction gear.
View original record Contd:- Would you kindly put in hand the necessary work for the affecting the standardsiation of this design for the .55 ratio reduction gear. E.

Scan108 Request for drawings related to the Condor Reduction Gear, listing three specific parts.
View original record R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. RECEIVED 28 OCT 1918 X EFG. Da2/CB261018. RE CONDOR REDUCTION GEAR .666 - 4240 - X3389. Please receive drawing No. G.6252 - Housing for Planet…

Scan109 Alteration to the .66 reduction 'Condor' epicyclic gear to provide a limited universal anchorage for the sunwheel.
View original record To Da from E. c. to EH. c. to EY c. to EFC. EE/G291018. X.3389 - RE "CONDOR" EPICYCLIC GEAR .66 reduction We send you herewith No. Lec.1018, shewing the alteration to the .66 reduction "Condor" gear…

Scan110 Notification of design changes to parts for the altered Epicyclic Gear Lac.1018.
View original record R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. -x. 31 OCT 1918 DeS/CHS.1018. RECEIVED X.3389. Please note that in accordance with the altered Epicyclic Gear Lac.1018, it is now necessary to…

Scan111 Communication regarding prints for the Condor Epicyclic Gear and Exhaust Pipes.
View original record R.R. 235A (500T) (S.D. 408. 26-4-17.) Bm. 2/156/13. To EFC. X.3389 Dal/CB11118. CONDOR EPICYCLIC GEAR .666 - 4240 - X3389. EXHAUST PIPES. 4320 - X1851. Please receive herewith a print of LeC.1018,…

Scan112 Covering memo for blueprint No. LeC. 1018.in regarding 'CONDOR' GEAR.
View original record R.R. 285 a (200 T) (S.E. 587. 21-2-18) G. 2129 To Mr. Coverley from EFC. EFC3/L. 21118. X. 3389 - "CONDOR" GEAR Please receive Blue Print No. LeC. 1018.in connection with the above. EFC.

Scan113 List of drawing numbers for the Condor Reduction Gear.
View original record C.C.D. E.F.C. Del/CB21118. RE CONDOR REDUCTION GEAR .666 - 4240 - X3389. Please receive drawings No. G.6265 - Outer Thrust Washer. G.6266 - Inner Thrust Washer. G.6267 - Thrust Cage. G.6264 -…

Scan114 The required proportions of .555 and .666 ratio Epicyclic Gears for 'Condor' engines.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X.3389 To EFCt from DA. c. to Mr. Coverley. ------------------- X.3254. X.3399. X.3389. Da2/MB.31118. ----------- Please note that the Air Ministry…

Scan115 List of drawings required for a Condor Epicyclic Gear with a .666 ratio.
View original record [Redacted] Da3/CB6.11.18. RE CONDOR EPICYCLIC GEAR .666 RATIO 4240 - X389. Please receive drawings No. G.6275 - Spherical Distance Piece. G.6276 - Collett for Propeller Shaft. G.6277 - Front Thrust…

Scan116 List of required parts for the Condor Epicyclic Gear, including a sunwheel anchor ring and a universal sleeve.
View original record Ex. -X. 8 NOV. 1918 8 NOV 1918 [Illegible crossed-out text] EFC. [Illegible signature] RECEIVED Dal/CBG.11.18. MS CONDOR EPICYCLIC GEAR .666 - 4240 - X3389. Please receive herewith - G.6285 - Sunwheel…

Scan117 Confirmation of a telegram regarding the Northcliffe chassis, Hawk engine, and design details for bearings and bolts.
View original record V.3389 CONFIRMATION OF TELEGRAM. ROYCAR DERBY. X.3383. X.2273. X.3389. DAY HIVES AGREE TO THE NORTHCLIFFE CHASSIS BEING COMPLETED WITH A HAWK ENGINE ON THE UNDERFRAME (STOP) IT DOES NOT REPRESENT OUR…

Scan118 Condor engine reduction gear types, performance data, and specifications.
View original record X.3389 To Mr. Plumpton from EH. EH1/LG161118. 16th Nov. 1918. X.3254 X.1830 X.1827 X.1831 X.3389. It should be pointed out to Mr. White Smith that Condor" engines are being made of two types possibly…

Scan119 Typed note outlining the production timeline for a batch of five engines.
View original record Contd:- EH1/LG.161118. the first of the five engine ready in 3 or 4 weeks. This engine is promised to the Aircraft Mfg. Co., it will be 8 or 9 weeks before the rest of the engines are finished. EH.

Scan120 Specifications for the 'Condor' single epicyclic gear, including tooth counts and gear ratio.
View original record X.3389 X.3254. 29.11.18. "CONDOR" SINGLE EPICYCLIC GEAR (.6667 ratio). --------------------------- No. of teeth on annulus = 96 No. " " " planet = 24 " " " " Sun = 48. ===========================

Scan121 Urgent internal instruction to issue prints as the original prints had not been received.
View original record R.R. 26. (950B.) (S.C. 503. 11-2-16.) Bm. 2/32/s. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To M/s Clark Order No. Customer's No. 30-11-1918 Will you Please issue Prints for G.6242-3 / X.3389. We have not…

Scan122 Parts required for Condor engine reduction gears.
View original record [Text struck through: To D.M., O to D., XY, SY, CR, EFO.] Mr Gallimore. Mr Coverley. Mr Wainman. Mr Gradwell. +3307 De/Stt6/CB31218. 1 3399 RE CONDOR .555 REDUCTION GEAR - 4240 - X1827. .666 ditto -…

Scan123 Screw Type Oil Retainer Nut for the Condor Reduction Gear.
View original record x3389 TO Mr. [Struck through] C. TO Mr. [Struck through] [Struck through] [Struck through] F.F.C [Circled] Mr Watkinson. [Struck through] Mr Coverley. Mr Walmsley. Mr Gradwell. Da2/CB11.12.18. I…

Scan124 List of parts and instructions related to the Condor Epicyclic Gear.
View original record To Mr. [redacted] Mr. [redacted] Mr. [redacted] Mr. [redacted] EFC Mr COVERLEY: Mr WORMALD: DEC 16 1918 DaB/CM/14.12.18. RECEIVED RE CONDOR EPICYCLIC GEAR(.686 RATIO). - 4240 - X3309. Please receive -…

Scan125 Urgent instruction to issue a new print for a lost document.
View original record R.R. 26. (250B.) (S C. 503. 11-2-16.) Bm. 2/32/2. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clarke Order No.: Customer's No.: Will you Please issue new Print for G. 6231 / X. 3389 IV Extremely Urgent.…

Scan126 Urgent instruction to issue new prints for two parts as the old ones are unreadable.
View original record R.R. 96. (250B.) (S.C. 503. 11-2-16.) Bm. 2/32/a. ROLLS-ROYCE LIMITED. INSTRUCTIONS. Date: 3-1-1919 To: Mr Clark Or. No.: Customer's No.: Will you Please issue Print for G.6230 SC & X3389 II Old Print…

Scan127 Instruction to urgently obtain a new print because the existing one is unreadable.
View original record R.R. 26. (950B.) (S.C. 503. 11-2-16.) Bm. 2/32/s. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clarke Order No.: Customer's No.: Will you Please urge Print for -> G. 6230 / X.3389 This was ordered on the…

Scan128 The printing and ordering of 100 sets of parts for the Condor Epicyclic Gears.
View original record X.3389 To EM. from Da. c. to E. c. to DA. c. to BY. c. to AY. c. to CT. c. to Mr. Gallimore. c. to Mr. Gradwell. (Mr.Cox.) c. to EEC. Da/Stt5/EB7.1.1.19. X.3399 X.3389. RE CONDOR .555 & .666 REDUCTION…

Scan129 Listing drawings for printing and ordering parts for the 'CONDOR' Epicyclic Gear.
View original record To EM. c. to M. Ct. Dy. Ws. Mr. Gallimore. EFC. Mr. Gradwell. Mr. Ashby. X.3389 Da/Stt8/CB22.1.19. RE "CONDOR" EPICYCLIC GEAR X.3399. X.3389. Please receive the following drawings for printing issue…

Scan130 Request for the printing and ordering of 6 experimental sets of a 'Condor' .666 ratio reduction gear.
View original record R.H. 235 (200 T.) (S.P. 103. 25-10-18) G. 2244 To EM. e. to M. AX. DY. CT. Mr Gallimore. Mr Coverley. Mr Clark. Mr Biddulph for Mr Weizman Mr Gradwell. Mr Gradwell for Mr Cox. Mr Gradwell for Mr…

Scan131 Extract discussing troubles and potential solutions for the epicyclic gear on the Condor engine.
View original record X. 3389 X. 3399 Extract from EH4/LG4.2.19. The troubles we have yet to overcome on the Condor engine are as follows:- (a) EPICYCLIC GEAR The troubles we had with the epicyclic gear on the first engine…

Scan132 Providing drawings for the creation of an experimental 'Condor' epicyclic gear set.
View original record To Mr Coverley. c. to M. FM. [crossed out] EH. [crossed out] E2C. [crossed out] EFe [handwritten] DA2/CB/30Z4/19. RE "CONDOR" EPICYCLIC GEAR (.666 RATIO). X3389. Please receive two prints of the…

Scan133 Instruction to make 3 experimental sets of Epicyclic Gear with a .666 reduction for the 'Condor' engine.
View original record To Mr Coverley. c, to M... [Stamped RH. EFC.] DAT/CH/7/5/19. RE "CONDOR" ENGINE. X. 3389. Re Epicyclic Gear - .666 Reduction. Please make 3 sets experimental, of this gear according to Supervision…

Scan134 Alterations for the 'Condor' engine's epicyclic gear, specifically changing the angle of obliquity for the serrations.
View original record To Mr. Gradwell from BY/C. c. to Mr. " for Mr.Cowgill. c. to Mr. Coverley. c. to AV. c. to H. c. to EPC. BY/C1/GMK23.5.19. X.3389. X. 399. "CONDOR" ENGINES - EPICYCLIC GEAR+ SECTION 4240+ Kindly note…

Scan135 Cover note regarding a print for the 'Condor' Epicyclic Reduction Gear.
View original record To Mr. Coverley, from EFC. EFC4/T27.619. X.3389 - "CONDOR" EPICYCLIC REDUCTION GEAR Herewith please receive print of G.6806 in connection with the above. EFC.

Scan136 Parts received from various suppliers for specific experiments.
View original record Mr Clark. from Order Office. Ed/Dml/HP2719. 2nd July.1919. Please note that we have received from The Herbert Frood Co Ltd.,18 Discs N.66, stores sheet 161520 of 30/6/19., and 16 Discs N66, stores…

Scan137 Summary of outstanding experimental work required for the 'Condor' engine before production.
View original record X.5889 Extract from EH1/LG26.7.19. RE SIX "CONDOR" EXPERIMENTAL ENGINES X.3254 The experimental work still to be done before we are in a state to produce 100 "Condors" is as follows:- 1. Bottom half…

Scan138 Internal instruction sheet detailing the good and bad points of a new P&R battery.
View original record R.R. 6 (500T) SF 550 9.4-19) MP 204991 ROLLS-ROYCE LIMITED. INSTRUCTIONS To Mr Clark. Order No. Customer's No. Good & bad points of New P&R. battery. 1 g. Large vent holes. 2 g. Good lead covered…

Scan139 Instruction to re-mark 'Condor' engines as Series 1 or Series 2 based on their gear ratio.
View original record X3389. COPY. To EP. from Bn. To By. " " To Da. " " Bn6/W2.12.19. X.3254. RE MARKING OF CONDOR" ENGINES. X.3399. X.3389. After conversation with the Technical Dept. Air Ministry, they inform us that…

Scan140 The dispatch of two blueprints for a Distance Piece for a 'Condor' .666 Epi: Gear.
View original record H.R. 23a 200 T) (R.F. 672. 22-5-18) G. 2376. To RMO from DA/STT C. to Ck. x3389 DA/STT6/EF12.12.19. "Condor" .666 Epi: Gear - Sec. 4240 - X.3389 Please receive herewith 2 Blue Prints of G. 6259…

Scan141 Sending two blueprints for modifications to the 'Condor' engine's epicyclic gear, detailing new parts and part supersessions.
View original record R R. 235 s (200 T) (S.F. 674 22-5-19) G. 2576 X.3389. DA/Stt12/EP29. 1. 20. To RHC from DA/Stt C. to HS. C. to Ck. ------------------------- "Condor"Engine - .666 Epi: Gear - Sec.4240 - X 3389…

Scan142 Failure of lubrication for planet bearings on the 'Condor' engine and proposed modifications.
View original record X.3389 To By. from Bn. c. to Hse. RE FAILURE OF LUBRICATION OF PLANET BEARINGS ON "CONDOR". With reference to BY18-P30-1-20, Mr. Day has prepared schemes and is instructing the first six engines off…

Scan143 Advising against endurance tests on the old oil system for the 'Condor' engine's epicyclic planets.
View original record To EP from DA/STT. Copy to BN. " RY. " JBG. " CK. X.3389 DA/STT/CB2-2-20. X.3389 RE OILING OF PLANETS ON "CONDOR" ENGINE. We think that until the new oil scheme of the Epicyclic Planets has been…

Scan144 Letter from the Air Ministry regarding the identification of Condor engines with different gear ratios.
View original record X.3389 COPY. Tel No: Regent 8000. Air Ministry, Telegraphic Address. Alexandra House, "Air Ministry, London." Kingsway, LONDON. W.C.2. 24th February, 1920. All letter should be addressed to The…

Scan145 'Condor' .666 Epicyclic Gear, providing a parts list and assembly instructions.
View original record X 3369. DA/Stt/EF27. 2. 20. To. W.H.C. & Capt. Pigott. (struck through) C to Ck. (struck through) Ck. ---------------- "Condor" .666 Epicyclic Gear Section 4240 - X 3369.…

Scan146 New parts fitted to the Experimental Condor engine.
View original record X.3389. To EFC. from RHC. RHC1/LG23.4.20. X.3254. RE "EXPERIMENTAL CONDOR". Will you kindly note that the Expl: Condor has been fitted with the following new parts:- X.3627. - Separate oil way in…

Scan147 The Condor engine's reliability, potential output increase, and testing of a new reduction gear.
View original record L.R. X.3389. X.3254 - Condor Engine. Contd. -2- HES/LG26.7.20. engine is still fit for a great number of hours service. X.2052. All the other parts on the engine are in very good condition. We had no…

Scan148 Successful test run of the 'Condor' engine and suggesting further development to increase its horsepower.
View original record R.R. 288A (100 T) (S.G. 648, 19-5-20) G. 2512 X 3389 To Bn. from R. Copy to CJ. " " Wor. " " Hs. " " EP. R2/G20.8.20. X.3254. RE "CONDOR" ENGINE. X.1831. X.3389. I am extremely pleased to hear of the…

Scan149 Guide on how to produce a permanent black finish for brasswork.
View original record "Autocar". July 8th 1916. X.3424. USEFUL HINTS AND TIPS. Permanent Black Finish for Brasswork. The following method of producing a black finish on brass or copper work should interest those motorists…

Scan150 Instructions for creating a dead black finish using a liver of sulphur bath, with precautions for soldered articles.
View original record A.W.BEECH/1.12.08 (F.H.R.) & 2.W.B Contd. -2- bristled brush, leaving a deep brown or semi-black deposit. This may be further protected by a coat of lacquer. Should a deep dead black finish be…

Scan151 Method for applying a black finish to brasswork.
View original record X. 3424. BLACK FINISH ON BRASSWORK. A method of blackening small brass parts, and one that is practically a standard method, may be given, particularly as it requires no special appliances. For this…

Scan152 Notes from a meeting with Mr. Royce discussing wiring, carburetter, ignition, and a rustless black finish for parts.
View original record R.R. H30a (500 T) (S.D. 408. 28-4-17.) Bm. 2/156/13. X.7424 Extract from EHL/LG16.12.18. The following notes were taken during Mr. Wormald's and my visit to Mr. Royce:- X.2778. WIRING. Mr. Royce…

Scan153 From 'EH' detailing directives from Mr. Royce regarding machinery, part finishes, vehicles, and soldering techniques.
View original record R.R. 235a (500 T) (S.D. 408. 25-4-17.) Bm. 2/156/13. X-3424 To Wor. from EH. EH2/LG17.12.18. 17th December 1918. X.2565. I am sending you a copy of all the notes which I took when we were with Mr.…

Scan154 Inquiry to The Weston Electrical Instrument Co. regarding their oxidised finish process.
View original record R.R. 28a (500 T) (S.D.) 408. 28-4-17.) Bm. 2/156/13. X.3424 EFC1/AT2119. 2.1.19. Messrs.The Weston Electrical Instrument Co., Audrey House, Eley Place, Holborn, London. E.C. Dear Sirs, Re Oxidised…

Scan155 Inquiry to J. Lucas Ltd. regarding a black oxidised finish for post-war chassis parts.
View original record EFC2/AT2119. X.3424 2.1.19. Messrs. J. Lucas, Ltd., Great King Street, Birmingham. Dear Sirs, Re Black Finish for Chassis Control Parts. Our Chief Engineer, Mr. Royce, is interested at the moment in…

Scan156 Letter from Joseph Lucas Ltd. discussing black finishes for chassis parts and post-war electrical equipment.
View original record [Red Slip Attached] LUCAS PLEASE ATTACH THIS SLIP TO YOUR DETAIL AND FURTHER COMMUNICATION ON THIS SUBJECT. SHOULD ALSO BEAR ITS REFERENCE. TECHNICAL DEPT. CLB/GD [Handwritten at top] X.3424 X.2565…

Scan157 Methods for creating protective coats on iron and steel, comparing linseed and mineral quenching oils.
View original record R.H. 235A. (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. C O P Y. Mr Clark. January 23rd, 1919. H13/B23119. Laboratory. X3424 RE PROTECTIVE COATS FOR IRON AND STEEL ETC. Quenching out in Linseed oil…

Scan158 Instruction memo to Mr. Clark regarding the black finish process on Weston Instruments.
View original record RR. 6 (500 T) (SF 121. 28.10.18) MP 197597 X. 3424 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr Clark. Order No. Customer's No. Mr. Hall cannot give any information re. the black. finish on Weston Ins.…

Scan159 Instruction note to Mr Clark regarding the finishing of brass switches.
View original record RR 6 (500 T) (SF 121. 28.10.18) MP 197597 X.3424- ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr Clark Date 28/1/19 Order No. Customer's No. Mr Hall will put the required finish on the brass switches if you…

Scan160 Cover memo for two methods of obtaining a black finish on brass work.
View original record R R 235 a (100 T) (S.E. 527. 21-2-18) G. 21 D To Mr. Hall from EFC. EFC1/AT31.1.19. X.3424.-BLACK FINISH ON BRASS WORK. Attached are copies of two methods of obtaining the above effect, which may be…

Scan161 Letter from Joseph Lucas Ltd regarding the composition and durability of their 'Black Finish'.
View original record X.3424. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. LUCAS TECHNICAL DEPT. CLB/GD PLEASE AFFIX THIS SLIP TO YOUR PAPERS. IN MAKING FURTHER COMMUNICATIONS ON…

Scan162 Letter from Weston Electrical Instrument Company directing an inquiry to their American works.
View original record Form L8A 9.18 X.3424 Weston Electrical Instrument Company, Ltd. DIRECTORS:- Dr EDWARD WESTON. E.F. WESTON. W.H. YAWGER, UNITED STATES. C. BROWN. A. DAVY, M.I.E.E. W.A. ROSS. WORKS, WAVERLY PARK,…

Scan163 Instructions to send miniature switches and lamp holders to Messrs. Lucas Ltd. for sample black finishes.
View original record To Shipping Office. c: to Despatch Stores. EFC13/T6.2.19. 6th February 1919. A.3424 - RE BLACK FINISH. We are sending into the Stores two miniature tumler type switches, two miniature lamp holders,…

Scan164 Sending miniature switches and a holder to be finished in dull grey, and other test pieces to be finished in black.
View original record To Mr. Hall. from EFC. EFC6/T6.2.19. X. 3424 - RE BLACK FINISH ON BRASS WORK We are sending you herewith three miniature switches and one miniature holder. We shall be glad if you will put a dull grey…

Scan165 'Oxidise Finish' issue to be taken up with Weston Electric Company's American works.
View original record To O.C. from EFC. Mr. Clark. Will certainly attend to this in the U.S. on Feb. 12 '19 EFC8/T7.2.19. X. 3424 - OXIDISE FINISH We attach a copy of a letter re the above to the Weston Electric Company,…

Scan166 Letter to Joseph Lucas Ltd. regarding a black finish treatment for sample parts.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X.3424 EFC12/T. 6th February 1919. Messrs. Joseph Lucas Ltd., Great King Street, Birmingham. Dear Sirs, Re Black Finish. Many thanks for your…

Scan167 Laboratory report on achieving a matte finish protective coating for brass switches.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X. 3424. EFC. February 11th, 1919. H13/EB11219. Laboratory. Re Protective Coating for Brass work, with special reference to three miniture switches…

Scan168 Process and results of coating switches and miniature holders for a lighting installation.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X.3424 EFC. February 22nd, 1919. H13/EB22219. Laboratory. Re X.3362 - LIGHTING INSTALLATION FOR W.W. X 3424. I have coated 5 switches which had not…

Scan169 From EFC to Mr. Hall regarding the dispatch of two Miniature Tumler type Switches.
View original record RR 235 n (200 T) (S. F. 103 25-10-18. G. 2244) *3724 To Mr. Hall. from EFC. EFC2/T13.3.19. 13th March 1919. X 3424 X 3362 I am sending you herewith two more Miniature Tumler type Switches. We shall be…

Scan170 Letter from Joseph Lucas Ltd. regarding the return of parts sent for black finishing.
View original record X.3424 ADMIRALTY, WAR OFFICE, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS [Red Slip Text Start] LUCAS PLEASE ATTACH THIS SLIP TO YOUR REPLY, AND FURTHER COMMUNICATIONS ON THIS SUBJECT SHOULD ALSO BEAR…

Scan171 Black japanned enamel finish for special parts from Messrs. Lucas.
View original record T R. from EFC. c.c. to CJ. c.c. to BY. EFC2/T27/3/19. X.3424 - RE BLACK FINISH FOR SPECIAL PARTS We are sending under separate cover a miniature switch a miniature lamp holder, and a portion of a test…

Scan172 Despatch of black finished sample parts to Mr. Royce for inspection.
View original record To Shipping Office. c. to Despatch Stores. EFC3/T27/3/19. X. 3424- RE BLACK FINISH FOR SPECIAL PARTS We are sending into the Stores for despatch to Mr. Royce, one miniature switch, one miniature lamp…

Scan173 Test pieces with a black finish, requesting comments and a comparison with a finish from Messrs. Lucas.
View original record To R. from EFC. c. to CJ. c. to By. EFC1/AT31.3.19. X.3424.-BLACK FINISH. Further to our EFC2/T2/319, we are sending under separate cover two portions of test pieces which have been black finished by…

Scan174 Sending black finished test piece samples to Mr. Royce.
View original record RR 235 a (200 T) (S F. 100. 25-10-18 G. 2241 To Shipping Office from EFC. c. to Dispatch Stores. EFC2/AT 1.3.19. X.3424.-BLACK FINISH. We are sending into the Stores for dispatch to Mr. Royce two…

Scan175 Comparing black finish samples to those from Lucas.
View original record To EFC. from BY. 31.3.19. X.3424 - BLACK FINISH "I do not consider these samples compare at all with finish of Lucas enamelled samples. These look grey". BY.

Scan176 Mr. Royce's preference for a black egg-shell finish on instruments and controls.
View original record Extract from E6/G1.5.19. X.3424. (5) FINISH OF INSTRUMENTS AND CONTROLS. For instrument dials Mr. Royce prefers the white letters on the black ground, and approves of the Weston standard black dials…

Scan177 Explaining the enameling process used to create the black finish on Weston instruments.
View original record S.N. 5 MAY 1919 X.3424 N.Y. 6 MAY 1919 ROLLS-ROYCE, LIMITED 15 BROAD STREET NEW YORK TELEPHONE HANOVER 2155 April 21, 1919 OY8-F21/4/RECEIVED EFC from OY:- Copies PHR and Mr Barrington 1. Some time…

Scan178 Processes experimented by Messrs. Rudge Whitworth Co. for obtaining a black finish.
View original record To Mr. Hall from Bn. c. to Mr. Hives. c. to Da. c. to BY. Copy X.3424 Bn4/P21.5.19. Attached is a copy of particulars of processes which Messrs. Rudge Whitworth Co., have experimented with for…

Scan179 The processes for oil blacking and heat blacking metal components.
View original record R.R. 220 A (100 T) (S.P. 575, 16-4-19) 6. 2354. OIL BLACKING The work to be treated, which should be bright and free from scale or rust but may be oily, is incorporated with a mixture of tempering oil…

Scan180 Page describing metal treatment processes such as phosphorizing and ebony black finishing.
View original record -2- the furnace burners and to the pipes used for blowing the saw-dust from the treated articles. The oil should be cooled by pumping it throught coils immersed in cold water. PHOSPHORIZING.…

Scan181 Correcting specifications for oil blacking and phosphorizing processes.
View original record To Mr. Hall from Bn. c. to Mr. Hives. c. to Da. (Struck through) c. to BY. [Handwritten] Copy A.T. Bn3/P30.5.19. [Handwritten] X.3424 With reference to my note Bn4/P21.5.19., attaching particulars…

Scan182 Discrepancies in finish and scale markings on Weston Ammeters for the instrument board.
View original record X.3424. To C.O. from BY/HBO. c. to EFC. c. to Mr.Hives. BY/HBO1/DW2.6.19. X.1362 - INSTRUMENT BOARD X.1162 Re Weston Ammeters Model 301. Herewith sample ammeter No.23309 scale 30-0-30 You will notice…

Scan183 Acceptability of the finish on instrument samples, comparing it to a Weston finish and pressing Elliotts for better workmanship.
View original record BY from BN. c. to EH. copy BN5/W2.7.19. RE FINISH TO INSTRUMENTS. X 3424 I am afraid that it is likely that we shall have to be satisfied with the finish of the samples you sent, and which I return…

Scan184 Results of four different finishing methods for an air pump and bracket.
View original record BN. from BY. C.67C BY12/P18.7.19. CHASSIS - RE FINISH OF AIR PUMP & BRACKET. X.3424 I am sending you herewith four brackets which have been finished in four different methods. Two of these I have had…

Scan185 Redesign of a chassis hand pump bracket, with a suggestion to consider die casting to reduce cost.
View original record COPY. R.R. 235 a (200 T) (S.F. 103. 25-10-18) G. 2241. To Da. from Bn. c. to By. c. to EH. Bn5/W23.7.19. 23rd. July 1919. (1) X.342440/50 CHASSIS - RE NEW DESIGN OF BRACKET FOR HAND PUMP. X 3444 I…

Scan186 Finishing process for the hand air pump bracket on the 40/50 chassis.
View original record By. from Bn. c. to EH. copy X.3424 X3444 Bn4/W23.7.19. 23rd. July 1919. 40/50 CHASSIS - FINISH OF HAND AIR PUMP BRACKET. BY12/P18.7.19. I agree that the sample marked FO, i.e. the one which has been…

Scan187 The treatment and supply of miniature lamp holders for the lighting installation at West Wittering.
View original record To E. from EFC. X.3424 EFC6/T28.8.19. Y.3362 RE LIGHTING INSTALLATION AT WEST WITTERING In answer to your note E2/G27.8.19, of the six miniature lamp holders that we originally obtained - 3 were…

Scan188 Promotional letter from The Summit Manufacturing Company for their Summit Patent Liquid Packing.
View original record Handwritten Text: X3658 Mr Hue, would you like sample would you have you seen this By T.H.Y 23-9-19 J.D. Printed Text: TELEPHONE: SYDENHAM-1607. TELEGRAMS: PROPS: KENILWORTH MANUFACTURING CO. LTD. THE…

Scan189 Black finish on parts and whether the lettering should be cleaned out after engraving.
View original record Bn. from BY. S C R X.3424 RE BLACK FINISH OF PARTS. ------------------------ I am sending you herewith a sample of the above where the lettering has not been cleaned out. From an examination of…

Scan190 Letter from a supplier confirming the dispatch of an order and providing specific application instructions for their product.
View original record TELEPHONE: SYDENHAM 1607. PROP.: KENILWORTH MANUFACTURING CO. LTD. X 3658 THE SUMMIT MANUFACTURING COMPANY, LACQUERS, VARNISHES, ENAMELS, PAINTS, POLISHES, Etc. GLADIATOR STREET. BROCKLEY. LONDON,…

Scan191 Receipt of sample leather stockings and black lacquers for experiments.
View original record X.3658 Mr. Clark. from O.O. Wd/Dn4/HP81019. 8th Oct. 1919. Please note we have received from Messrs. P. Haworth & Sons, Manchester. 1 each sample leather Stockings N.1467, and N.1468 for experiment…

Scan192 Black finish on steering column controls and a suggestion to prevent wear by adding a raised rim.
View original record R.R. Hds. (08) T.O.F. 10B. 25-10-18 G. 281. [Handwritten top center] Y3424 [Handwritten top right] Chassis. B.J. To Dy. [struck through] From Bn. Hs. [struck through] By. [handwritten] Black Finish of…

Scan193 Expected wear of the black enamel finish on the Prince of Wales' car.
View original record To BJ. from Bn. c. to R. c. to CJ. Bn1/W81019. RE WEAR OF BLACK FINISH ON PRINCE OF WALES' CAR. With reference to BJ6/D27919, this matter was raised some ten days or a fortnight ago and the enamelling…

Scan194 The gun metal fittings on the Prince of Wales' car wearing white.
View original record R R. 235 a (200 T) (8 F. 674 22-5-19) G. 2376 COPY. To Bn. from BJ. BJ6/D27919. I am not sure whether you have heard that the gun metal fittings on the Prince of Wales' car wear white, that is to say,…

Scan195 Wear of a black finish on the Prince of Wales' car and alternatives to reduce glare.
View original record COPY. To Bn. from BJ. Wear of Black Finish on Prince of Wales' Car. BJ2/S101019. With reference to Bn1/W81019, as the original idea of the blck finish was to avoid the glare of the nickel silver…

Scan196 Suggestion to contact the Silvertown Rubber Company about applying a black ebonite finish to steering column controls.
View original record To En. from EH. [crossed out] X.3424 X.3540 EH3/LG17.10.19. With reference to the black finish on Steering Column Controls. We suggest (it was your suggestion originally) that we might get in touch…

Scan197 Trials of 'Apex' and 'Optical' black enamels for use on cylinders and radiators.
View original record To BY. from EH. E.F.C. X.3658 EH1/LG2.12.19. X.3658 RE BLACK ENAMELS. X.3456 We have sent into Mr. Roscow two quart jars of Summit black enamel. One is "Apex" cylinder black and the other is "Optical"…

Scan198 Urgent order for 15 miniature switches for Mr. Royce's lighting installation.
View original record To O.O. from EFC. c. to Shipping Office. X.3424 EFC1/T31.3.20. X.3362 - LIGHTING INSTALLATION AT W.W. X 3424 We have handed into the O.O. 15 miniature switches received for Mr. Royce's lighting…

Scan199 Handing over miniature lamp holders for Mr. Royce's lighting installation to be sent to Messrs. Lucas.
View original record X 3424. To O.O. from EFC. c. to Shipping Office. EFC3/T31.3.20. X.3362 - LIGHTING INSTALLATION AT W.W. X 3424 Further to our EFC1/T31.3.20, we have now handed into the O.O. 15 miniature lamp holders…

Scan200 Investigating a new nitro-cellulose based paint, 'Duco', from Dupont.
View original record X.4547. To Roy. from DA. DA2/M3.9.24. c. to HS. BY. EGG-SHELL BLACK FINISH. X.4547. We have heard a great deal from Mr. Belnap and the American Co., about the new paint which is used for finishing…

Scan201 Sourcing a sample of Egg Shell Black Finish paint from Nobel's Explosives for testing.
View original record 4547 DA. (West Wittering) from ROY. c. to Hs. c. to EY. ROY4/MG5.9.24 -------------------------- re EGG SHELL BLACK FINISH - DA2/M3.9.24 The special Paint you speak of is also made in this country by…

Scan202 Sourcing details for an 'Egg Shell Black Finish' from a subsidiary of Nobel's Explosives.
View original record DA. from ROY. c. to Hs. c. to EY. 44547 ROY13/MCG.9.24 EGG SHELL BLACK FINISH Nobel's Explosives advise this morning that this matter is handled by one of their subsidiary concerns, Necol Industrial…

Scan203 Requesting a sample of glossy black Necol-Collodions paint for experimentation.
View original record To Hs. from Da. X.4547 Da4/M2.10.24. NECOL-COLLODIONS PAINT - S.2720. X.4547 We understood that several samples of this paint were being sent to you by the makers. It is unlikely you will want the…

Scan204 Testing an eggshell black enamel finish from Noble's Industries on a Goshawk 11 steering column quadrant.
View original record To Roy. from DA/EV. c. to Hs. X.4547 DA/EV3/M19.9.24. We thank you for the booklet and letters concerning Messrs. Noble's Industries products. We note that Hs. has some enamels providing a good egg…

Scan205 Confirming a tin of Necol paint has been sent for experiments.
View original record X4547 To DA. from Hs/LG. Hs/LG23.10.24. RE. NECOL PAINT S.2720. Referring to DA4/M2.10.24. We have today sent to you at Camacha WW. 1 tin of Necol paint for you to carry out the necessary experiments.…

Scan206 The despatch of one tin of black enamel to Mr. Day at no charge.
View original record To BP. from Hs. c/o Mr. Chatwin. X4547 Hs/LG23.10.24. We are sending into the Stores for despatch to Mr. Day, Camacha, W.W. - 1 tin Black Enamel. Will you please issue the necessary instructions to…

Scan207 Request for a set of Goshawk hand control levers with a more durable 'Necol' or 'Pyroxylin' finish.
View original record X.4547 To HS. from DA/EV. DA/EV2/M26.11.24. We should be glad if you could send us as soon as possible a set of Goshawk hand control levers, finished in 'Necol', egg-shell finish, as we wish to shew…

Scan208 Finishing specifications for a 1.B.IV. engine unit.
View original record To Hs/Rm. from RHC. X 3424.v RHC.9/BE21.7.33. Finish on 1.B.IV. Engine Unit CYLINDERS Rocker cover black enamelled except on the beading round the joint face and the word 'Bentley' which were…

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