Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Observations of sparks from various magnetos using two different types of revolving spark gap apparatus. | ||
| View original record | X 3109 EFC8/T26.5.187 OBSERVATIONS OF VARIOUS TYPES OF SPARKS AND SPARKS FROM VARIOUS MAGNETOS ON REVOLVING SPARK GAP APPARATUS Two types of revolving gap were tried:- (A) This consisted of an earthed… | ||
| scan0002 | Magneto spark experiment using an eccentric disc and synchronous motor setup. | ||
| View original record | Contd. (2) Peripheral speed of H.T. point 92 ft/sec. FIG. B The stationary disc was arranged a little eccentric- ally, so that the length of gap varied from about 2mm. to about 6 1/2mm. and back again… | ||
| scan0003 | Observations and nomenclature for sparks generated by various Bosch magnetos. | ||
| View original record | ontd. (3) (1) Spark from Bosch Z.R. 6 magneto. (2) " " Bosch Z.A. 2 Motor cycle. type magneto. (3) " " Bosch Z.R. 6 magneto in conjunction with a high tension condenser. All the sparks have been… | ||
| scan0004 | Hand-drawn and annotated diagram showing observations of sparks and electrical arcing under six different conditions. | ||
| View original record | 4. (1) ZR6/150/2/A/A 3 small sparks striations arc. (2) ZR6/150/2/A/B Several small sparks. Very little arc effect. (3) ZR6/150/2/R/A Less arc than for advanced position above. Sometimes no arc, but… | ||
| scan0005 | Test report detailing spark and arc behavior under various conditions and configurations. | ||
| View original record | 5. (7) ZRG/150/5/R/A No spark. At decreased gap (4mm) single spark appears. On still further decreasing gap arc appears. (8) ZRG/150/5/R/B Single spark no arc. (9) ZRG/150/7/A/A No spark. (10)… | ||
| scan0006 | Sketches and notes analysing the characteristics of electrical sparks and arcs under different conditions. | ||
| View original record | (6) (13) ZR6/600/2/W/A Sparks striations Dots of light. (14) ZR6/600/2/W/B Bluish white sparks. Mauvish arc. Arc composed to some extent of striations. (15) ZR6/600/2/E/A More arc at retard than… | ||
| scan0007 | Analysis of spark and arc characteristics under various ignition timing and spark gap conditions. | ||
| View original record | (16) ZR6/600/5/R/A Same effect of retard as for 2mm. gap. (20) ZR6/600/5/R/B More arc than for advance. (21) ZR6/600/7/A/A Single spark. Striations are sometimes additional spark. Sometimes spark… | ||
| scan0008 | Observations and diagrams of electrical spark and arc characteristics under different conditions. | ||
| View original record | (25) ZR6/2000/2/A/A Sparkys Striations. Dots of light. (26) ZR6/2000/2/A/B Same general remarks as for 600 R.P.M. (27) ZR6/2000/2/R/A Arc at retard wore bushy " " " " Flamey. " " " " yellowish.… | ||
| scan0009 | Log page with diagrams and notes comparing spark plug conditions under different settings. | ||
| View original record | (9) (31) ZR6/2000/5/R/A As above. (32) ZR6/2000/5/R/B Ditto (33) ZR6/2000/7/A/A as above. (34) ZR6/2000/7/A/B Ditto. (35) ZR6/2000/7/R/A as above. Spark takes place more easily at retard than at… | ||
| scan0010 | Page of diagrams illustrating various spark and arc characteristics. | ||
| View original record | (10) (37) ZA2/200/2/A/A Sparks. Arc. (38) ZA2/200/2/A/B Sparks and arc. ZA2/200/2/R/A Slightly less arc on retard. (40) ZA2/200/2/R/B Single spark only No arc. (41) ZA2/200/5/A/A Spark regular some… | ||
| scan0011 | Test report page logging spark observations for various components. | ||
| View original record | (11) (43) RA2/200/5/R/A Occasional single spark. (no arc) (44) RA2/200/5/R/B No spark. (45) RA2/200/7/A/A No spark. (46) RA2/200/7/A/B No spark. (47) ZA2/200/7/R/A No spark. (48) ZA2/200/7/R/B No… | ||
| scan0012 | Diagrams illustrating the characteristics of electrical sparks and arcs under different conditions. | ||
| View original record | (12) (49) ZA2/600/2/N/A Sparks & Arc. (50) ZA2/600/2/A/B Sparks & Arc. (51) ZA2/600/2/R/A Same as for advance but very slightly less arc. (52) ZA2/600/2/R/B Sparks & Arc. (53) ZA2/600/B/A/A Single… | ||
| scan0013 | Page of test results with diagrams, detailing spark performance under various conditions. | ||
| View original record | (13) (55) ZA2/600/5/R/A Same as for advance. (56) ZA2/600/5/R/B Ditto (57) ZA2/600/7/A/A Single spark & less arc than for 5mm. gap. (58) ZA2/600/7/A/B No spark. (59) ZA2/600/7/R/A Same as for advance.… | ||
| scan0014 | Test observations of spark and arc characteristics under various conditions. | ||
| View original record | (14) Z/2000/2/A/A Same as for 600 R.P.M. (...) ZA2/2000/2/A/B Spark and arc. (63) ZA2/2000/2/R/A Ditto. No. difference between adv. and retd. (64) ZA2/2000/2/R/B Sparks & arc Less "snappy" than for… | ||
| scan0015 | Log sheet detailing the results of various spark tests, with accompanying waveform diagrams. | ||
| View original record | (1D) (67) ZA2/2000/5/B/A Ditto (68) ZA2/2000/5/B/B Spark & more arc than for advance. (69) ZA2/2000/7/A/A Same as for 600/7 o difference between A & B (70) ZA2/2000/7/A/B No spark. (71) ZA2/2000/7/B/A… | ||
| scan0016 | Test report page detailing observations of spark characteristics for multiple configurations. | ||
| View original record | (16) (73) ZR6/C/150/2/A/A One short sharp, thick, bluish white spark, sometimes two apparent. (74) ZR6/C/150/2/A/B 1 short sharp spark as opposite. (75) ZR6/C/150/2/B/A As above. (76) ZR6/C/150/2/B/B… | ||
| scan0017 | Test log sheet detailing spark test results for various configurations. | ||
| View original record | (17) (79) ZR6/C/150/5/R/A Same as for advance. (80) ZR6/C/150/5/R/B No spark. (81) ZR6/C/150/7/A/A No spark. (82) ZR6/C/150/7/A/B No spark. (83) ZR6/C/150/7/R/A No spark. (84) ZR6/C/150/7/R/B No… | ||
| scan0018 | Diagrammatic analysis of different types of sparks and their characteristics. | ||
| View original record | (18) (85) ZR6/C/600/2/A/A Short sharp bluish white sparks Tiny red sparks fly of disintegrated material. (86) ZR6/C/600/2/A/B Single or two short, sharp sparks. (87) ZR6/C/600/2/B/A Short sharp sparks… | ||
| scan0019 | Illustrated log page detailing various spark test results with corresponding observations. | ||
| View original record | (19) (91) ZR6/C/600/5/R/A Three or four sparks sometimes followed by pseudo arc as illustrated under 2/R/A (92) ZR6/C/600/5/R/B Single sparks (93) ZR6/C/600/7/A/A No spark (94) ZR6/C/600/7/A/B No… | ||
| scan0020 | Catalog page with illustrations and descriptions of different types of sparks. | ||
| View original record | (20) (97) ZR6/C/2000/2/A/A as for 600/2/A/A (98) ZR6/C/2000/2/A/B 3 short sharp sparks. (99) ZR6/C/2000/2/R/A striations. Very much as for 600/2/R/A but some ordinary bushy arc in evidence. (100)… | ||
| scan0021 | Visual and descriptive log of different electrical spark characteristics. | ||
| View original record | (21) (103) ZR6/C/2000/5/R/A Sparks and pseudo - arc. slight bushiness to arc. (104) ZR6/C/2000/5/R/B Spark & straggly. sparks. (105) ZR6/C/2000/7/A/A No spark (106) ZR6/C/2000/7/A/B Thick and thin… | ||
| scan0022 | Remarks on sketched sparks, comparing two different gap types and their appearance from a magneto. | ||
| View original record | -22- REMARKS ON THE SPARKS SKETCHED. The sparks are bluish white and the arcs and striations are mauve. On the A gap the sketches represent the effect of a continuous succession of sparks from the… | ||
| scan0023 | Analysis of electrical arc and spark characteristics at various engine speeds and ignition timings. | ||
| View original record | -23- of flux that has to slip back between these positions to maintain the e.m.f. necessary to maintain the primary current). Arc or further sparks are only present when the gap is shorter than its… | ||
| scan0024 | Typed page analysing a pseudo-arc and retarded spark with references to sketches. | ||
| View original record | -24- appears superposed upon this pseudo-arc (see sketch 99) and the 5mm retarded spark shows traces of this also (sketch 103). EFC. | ||
| scan0025 | Note on the effect of an insulated third point on magneto test spark gaps. | ||
| View original record | (I) NOTE RE EFFECT OF INSULATED THIRD POINT Test spark gaps for magnetos are usually fitted with an insulated third point adjusted to nearly touch the insulated high tension point as in sketch:-… | ||
| scan0026 | Report page detailing conclusions from tests on magneto ignition systems, specifically the effect of a 'third point'. | ||
| View original record | .. (2) found the effect to be the same when high tension condenser was connected, in spite of the radical alteration in the type of spark. On the other hand we have had very definite results of the… | ||
| scan0027 | Analysis of electric field disturbance by conductors in a Bosch Z.A.2 component. | ||
| View original record | Contd. (3) case of the Bosch Z.A.2 the two results were most definite The effect, no doubt, may be ascribed to the disturbance of the electric field of force near the points by the presence of… | ||
| scan0028 | Observations of sparks from various magnetos on a revolving spark gap apparatus. | ||
| View original record | To R. from EFC. c. to BJ. c. to Oy. c. to By. c. to EH c. to Wor. for Mr. Ellis. X. 3109 EFC4/T17.7.17. X. 3109 - OBSERVATIONS OF SPARKS FROM VARIOUS MAGNETOS ON REVOLVING SPARK GAP APPARATUS Herewith… | ||
| scan0029 | Comparative study of different spark characteristics with diagrams and notes. | ||
| View original record | D/200/2/A Single or two sparks (thick & thin) slightly bushy are somewhat striated. Thin outer spark. D/200/2/B Few small sparks. No arc. D/200/5/A Single spark sometimes. A few striations. Not very… | ||
| scan0030 | Classification chart illustrating and describing different types of electrical sparks and arcs. | ||
| View original record | D/600/2/A Single spark and bushy arc some striations Thin outer spark sometimes D/600/2/B Sparks and some arc. D/601/2/A Same as D/600/2/A but shorter arc and only occl. outer spark. D/601/2/B Single… | ||
| scan0031 | Comparison of different types of electrical spark and arc characteristics with corresponding sketches. | ||
| View original record | D/2000/2/A Thick and thin spark. Bushy arc. Occ. thin sparks anywhere Occ. striations. D/2000/2/B As sketches. D/2000/5/A Same as for D/2000/2/A only less. D/2000/5/B Single spark and arc. D/2000/7/A… | ||
| scan0032 | Solutions for 'sparking over' issues on Bentley engines, including plug gaps, terminals, and wiring insulation. | ||
| View original record | [Handwritten: WST X3109] To Hs. from E. [Handwritten: See me HS] c. By. Hs/Wst. By/RD. Sparking Over on Bentley. We have discussed the above question with Hs/Wst in the light of recent experience on… | ||
| scan0033 | Letter from Newtons of Taunton Ltd discussing requirements for 5 K.V. Spark Gaps. | ||
| View original record | X 3109. GARAGE EQUIPMENT NEWTONS OF TAUNTON. A.C. & D.C. MOTORS HARDING CHURTON A.C. MOTORS NEWTONS OF TAUNTON LTD (PROPRIETORS: JOSEPH LUCAS LTD) MANUFACTURING ELECTRICAL ENGINEERS MAIN WORKS:… | ||
| scan0034 | Order request for stainless steel balls for H.T. Spark Gaps. | ||
| View original record | 83109. Roy. From Hs/Wst. STAINLESS STEEL BALLS FOR H.T. SPARK GAP. Will you please order for us to order No.54101 6 stainless steel balls from Hoffmans. 25/32" diameter. Hs/Wst. Hs/Wst.5/MA.1.2.34. | ||
| scan0035 | Request for a more fire-proof micrometer spark gap for altitude testing and ignition coil voltage measurements. | ||
| View original record | 86154 To EJJ. Hs/Wst.2/JH.4.3.36. Micrometer Spark Gap for Altitude Testing. We require a Micrometer spark gap of the type we are now using in the Electrical Laboratory, for ignition coil measurements… | ||
| scan0036 | To book in spark gaps as referred to on an attached advice note. | ||
| View original record | V6154. G/MT. From Hs/Wst. c. to Roy/CGS. Hs/Wst.2/MA.18.3.35. Will you please arrange to book in the spark gaps as referred to on attached advice note. Hs/Wst. | ||
| scan0037 | Request for the electrical equipment from chassis 14-GIV to be sent for examination following a 10,000-mile test. | ||
| View original record | X6002 RHC. from EFC. c. Hs. c. Ha/AJL. EFC9/AD25.4.30. CHASSIS 14-GIV. Will you please arrange that when this chassis is dismantled, the whole of the electrical equipment be sent in to us for… | ||
| scan0038 | Instructions for a reduced charge switching system for the 20 HP 10,000 mile chassis. | ||
| View original record | X6002 By. from EFC. c. By/RD. EFCl/AD28.4.30. X.6016. REDUCED CHARGE SWITCHING. X.6002. It is understood that you will be issuing instructions for a 20 HP. system of - Distribution box with extra… | ||
| scan0039 | Inspection of experimental electrical items from chassis 23-EX after a 10,000-mile test. | ||
| View original record | X6001. RHC. from EFC. c. Hs. c. Hs/AJL. EFC2/AM.6.6.30. We are hoping to receive in due course for inspection, the electrical experimental items from chassis 23-EX which chassis has recently completed… | ||
| scan0040 | Outlining changes to dynamo output testing, involving increased lamp usage during 15,000-mile tests. | ||
| View original record | To Sg. from Hs. c. Wor. EFC. c. E. By. c. Hs/GWH. X6001 Hsl/MJ13.1.31. X.6099, DYNAMO OUTPUT. X.6001/2. We are arranging in future that on all 15,000 miles tests the lamps will be switched on for six… | ||
| scan0041 | New dynamo output test procedures involving extended lamp usage and supplementary laboratory tests. | ||
| View original record | X6002 To | ||
| scan0042 | Proposal for fitting a new dynamo and modifying the switchbox for the 25-EX car ahead of a 10,000-mile test. | ||
| View original record | X6001 By. from Hs/CAP. Hs/CAP1/ADL9.5.31. DYNAMO AND SWITCHBOX FOR 25-EX. In connection with the 10,000 mile test of 25-EX in France, we propose fitting to this car a dynamo and switchbox as detailed… | ||
| scan0043 | List of suggested items to be fitted to a 40-50 HP chassis for a 10,000-mile test. | ||
| View original record | X6001 He/GWW (crossed out) c - Hs. BY/RD12/W.19-5-31. [STAMP] RECEIVED XI MAY Re :- 40-50 H.P. Chassis 10,000 mile test. The following items we suggest should be fitted to the above chassis for test… | ||
| scan0044 | Note on starter motor modifications for a 40/50 chassis during a 10,000-mile test. | ||
| View original record | X6001 RHC. from Hs/HEW. c. Hs/CWH. Hs/HEW2/AD23.5.31. X6001 X6079 40/50 CHASSIS 10,000 MILE TEST. When the starter motor on this chassis is removed for modifications as set out in By/RDL2/W19.5.31 we… | ||
| scan0045 | Correction to the switchbox circuit breaking instructions for the 40-50 HP Chassis No. 25-EX, 10,000 mile test. | ||
| View original record | X6001 Hs/GWH. c - Hs. [text has been struck through] c - RHC. [text has been struck through] BY/RD5/W.28-5-31. Re :- 40-50 H.P. Chassis No. 25-EX. - 10,000 mile test - With reference to the… | ||
| scan0046 | Transferring special experimental electrical equipment during an engine change for a 10,000-mile test on chassis 18-GIV. | ||
| View original record | X6002. RHC. from Hs/HEW. Hs/HEW.1/AD17.10.31. 10,000 MILE CHASSIS 18-GIV. When the engine is changed in this chassis the engine electrical equipment comprising ignition distributor, dynamo and starter… | ||
| scan0047 | List of the special ignition and electrical features fitted to chassis 18.G.IV for a 10,000-mile test. | ||
| View original record | X6002 5.11.31. ELECTRICAL EQUIPMENT ON 18.G.IV. FOR 10,000 MILE TEST. The following is a list of the special ignition and electrical features as now fitted to chassis 18.G.IV. - (1) Wiring to LOP.… | ||
| scan0048 | Instruction to delete the magneto for a 10,000 mile test on 20/25 HP. chassis 18-GIV. | ||
| View original record | X6002 RHC. from Hs/Wst. Hs/Wst.4/AD26.1.32. 20/25 HP. CHASSIS 18-GIV. For the next 10,000 mile test of this car will you please arrange to delete the magneto. Hs/Wst. | ||
| scan0049 | List of required modifications for the electrical equipment on chassis 19-EX. | ||
| View original record | RHC. from Hs/Wst. X6001 Hs/Wst.2/ADL9.2.32. ELECTRICAL EQUIPMENT ON CHASSIS 19-EX. We understand that this chassis is now to be built up and in order to bring the electrical equipment up-to-date it… | ||
| scan0050 | Outstanding electrical components to be fitted to chassis 19-EX for a 10,000-mile test. | ||
| View original record | X6001 Ric. From Hs/Wst. c. to Hs/GMH. c. to Hs/Lid. Hs/Wst.4/MA.7. 4. 32. OUTSTANDING ELECTRICAL ITEMS FOR CHASSIS 19-EX. We give below the electrical items still remaining to be fitted to 19-EX for… | ||
| scan0051 | The status of a starter motor with self-lubricated bearings and Smith instruments. | ||
| View original record | -2- Starter Motor with Self Lubricated Bearings. This has been built up and we have tested the same satisfactorily HPS has seen the bearings. The motor is now in the hands of T.T. for re-assembly with… | ||
| scan0052 | Summary of the electrical and ignition units to be fitted to the first Peregrine chassis for a 10,000-mile test. | ||
| View original record | RHC. from Hs/Wst. c. By/RD. X6002 Hs/Wst.2/AD26.10.32. ELECTRICAL EQUIPMENT ON FIRST PEREGRINE CHASSIS FOR 10,000 MILES TEST. X6146 We give below a summary of the electrical and ignition units which… | ||
| scan0053 | Specification of experimental features to be fitted for a 10,000-mile test on chassis 1 J.3. | ||
| View original record | X6001 RIC. From Hs/Wst. c. to Sy/RD. c. to E. Hs/Wst.5/MA.21.11.32. 10,000 MILE TEST CHASSIS 1 J.3. We give below a specification of the various experimental features with which this chassis is to be… | ||
| scan0054 | List of modifications and instructions for various electrical components. | ||
| View original record | -2- Hs/Wst.5/MA.21.11.32. Cont'd. (6) Distribution board and Cut Out. The existing one on the chassis can be used. (7) Battery. This is to be an experimental battery type Dagenite 6 GLO 11-A similar… | ||
| scan0055 | Changing the dynamo on a Bensport chassis in France to test experimental brushes. | ||
| View original record | 86603 RHC. From Hs/Wst. Hs/Wst.3/MA.6.3.33. BENSPORT CHASSIS IN FRANCE. We are arranging to change over the dynamos as quickly as possible on the Bensport in France in order that we can run an… | ||
| scan0056 | Changing the dynamos on a Bentsport chassis in France. | ||
| View original record | 86003. [redacted] from RHC/WSC. [redacted] c. Wst. RHC/WSC11/AP.6.3.33. BENTSPORT CHASSIS IN FRANCE. In accordance with Hs/Wst3/WA.6.3.33. (Copy attached) we are to change the dynamos on the above… | ||
| scan0057 | Specification of electrical equipment modifications for the 10,000 miles test on chassis 18.G.IV. | ||
| View original record | x6002. RHC. from Hs/Wst. Hs/Wst.1/KT.27.3.33. x6083 SPECIFICATION OF ELECTRICAL EQUIPMENT ON 18.G.IV. FOR 10,000 MILES TEST. We give below a list of the modifications required to the electrical system… | ||
| scan0058 | Test report on a Brisport I Battery after 18,000 miles of running. | ||
| View original record | x6003. Brisport I Battery after running 18,000 miles 22.6.33. On high rate discharge this battery gave a good output, an average discharge of 108 amperes for 18 min 40 sec. There was not any… | ||
| scan0059 | Condition of battery separators after a vibration test. | ||
| View original record | The separators were in perfect condition no signs of wear due to vibration This battery will be fitted for further tests. HB 22-6-33 | ||
| scan0060 | The reversal tests conducted on single throw cranks. | ||
| View original record | Copy taken down to R. 84499. by Rg. 18. 11. 24 To Rg from RHC. C. Hs. O. By. CRANK T NOV. 18 1924 RECEIVED We have now completed the Reversal Tests on single throw Cranks made to Drgs. DES 36 and 132.… | ||
| scan0061 | Table detailing test results including RPM, number of reversals, and time run for various engine components. | ||
| View original record | -2- RHC1/EU 18. 11. 24. The figures of test are as follows: TEST NO. TYPE. R.P.M. NO. OF REVERSALS. TIME RUN. 1. 1. Condor Std. Web 600 400 40 Secs. 2. " " " 300 364,850 20,27 Hrs. 2. 1. Eccentric… | ||
| scan0062 | Torsional test results for a Condor III crankshaft, showing deflection graphs and a data table. | ||
| View original record | CONDOR III CRANKSHAFT TORSIONAL TEST (E.20961) EFFECTIVE TORQUE IN LBS. INS. DEFLECTION IN INCHES Graph Labels: No 1, No 2, No 4, No 3, No 6, No 5, Nos 7 & 8, No 9, No 10, No 11, No 12 PERMANENT SET… | ||
| scan0063 | Torsional test results for the Condor I crankshaft, showing deflection under torque. | ||
| View original record | CONDOR I CRANKSHAFT TORSIONAL TEST Graphs: EFFECTIVE TORQUE IN LBS INS DEFLECTION IN INCHES Graph Line Labels: No. 1, No. 2, No. 3, No. 4+, No. 5, No. 6+, No. 7, No. 8, No. 9, No. 10+ Notes:… | ||
| scan0064 | Log sheet for a crankshaft endurance test for design 989. | ||
| View original record | MODEL CRANK TESTS. DES 989 WITH .295" WEBS. SPEED 300 R.P.M. STROKE 6" * TIMES MADE UP TO 9 A.M EACH DAY. | TIME STARTED | TIME STOPPED | DATE | TIME RUN PER DAY | TOTAL TIME | COUNTER READING |… | ||
| scan0065 | Rig for testing model cranks. | ||
| View original record | RIG FOR TESTING MODEL CRANKS This ball end is placed 3.000 eccentric GIVING A 6.000 STROKE 44.000 8.125 CTRS CRANKSHAFT PLUNGER BLOCK SERRATED COUPLING 4 to 5 lbs FLYWHEEL U.648 HARDING'S TACHOMETER… | ||
| scan0066 | Calculations for increasing flywheel inertia by 30% for model crank tests. | ||
| View original record | MODEL CRANK TESTS Increasing Inertia of flywheel by 30% Wt of flywheel = 48 lb. Length of each test wire "l" = 2 ft. Distance between wires "d" = 16.250 = 1.354 ft. Periodic Time "t" = 26/20 = 1.3… | ||
| scan0067 | Letter to Major B.C. Carter of the Royal Aircraft Establishment regarding crankshaft stiffness calculations. | ||
| View original record | 74699 Hs/SS1/T. 28th March, 1929. Major B.C. Carter, X634 Royal Aircraft Establishment, South Farnborough, Hants. Dear Major Carter, I enclose some further information which I hope will cover the… | ||
| scan0068 | Comparison of calculated and observed critical speeds for various engines using different formulas. | ||
| View original record | Contd. -2- This gives much closer agreement with your formula, as shown. The test on 15 C was done before my time, and I should not be perturbed over the large error - 19%. We have had plenty of… | ||
| scan0069 | Letter from the Royal Aircraft Establishment comparing calculations for torsional vibration. | ||
| View original record | G. 16/859. When Telephoning with regard to this letter please ask for Extension Number 20 TELEGRAMS: Ballooning, South Farnborough. TELEPHONE: 108 North Camp, 361 Aldershot, & 108 Farnborough. All… | ||
| scan0070 | Calculations and analysis of crank stiffness and torsional resonance speeds, comparing calculated results with test data. | ||
| View original record | 2. (Handwritten: 16c 151) Dimensions: d₁ = 2 d₂ = 1.5 r = 2.26 (Handwritten: 2.25) S₁ = 1.25 S₂ = 0.875 ω = 2.25 (Handwritten: 2.20) a = 1.45 h = 0.75 (Handwritten: .73) b = 0.525 Equivalent length 2b… | ||
| scan0071 | Analysis of engine vibration criticals, orders, and resonance speeds in various cylinder configurations. | ||
| View original record | The 2/3'rd method is derived from the continuous shape, uniformly distributed + C. No claims made for new engines, or for two-node vibration. criticals to be investigated. These may be important, e.g.… | ||
| scan0072 | Paper by Frank M. Lewis regarding naval architecture and marine engineering. | ||
| View original record | 4. by Frank M. Lewis, (a paper read before the Society of Naval Architects and Marine Engineers, New York, 1925) because this treatment embraces the consideration of Minor Criticals. All the recent… | ||
| scan0073 | Letter to Major Carter at the Royal Aircraft Establishment discussing discrepancies in crankshaft torsion test results. | ||
| View original record | X4499. X4499. Hs/Tsn.1/MJ. September 3rd,1929. Major Carter, Royal Aircraft Establishment, Sth. Farnborough, Hants. Dear Major Carter, CRANKSHAFTS. This letter is by way of reply, now long overdue, to… | ||
| scan0074 | Crankshaft design, torsional vibration analysis, and testing methods for different car engines. | ||
| View original record | -2- The shaft E.78456 for instance weighs 73.75 lbs. - 2 lbs. less than E.75216 - yet is 14% stiffer and has larger journal bearings (more area); it has wider and shorter webs. The energy stored per… | ||
| scan0075 | Letter discussing experiments on car engine vibrations at high revs and seeking suggestions regarding their cause. | ||
| View original record | -3- We have been doing some experiments recently on car engine vibrations at high revs., and we find we cannot get a plain bore crankshaft to run smoothly in its case without a certain amount of… | ||
| scan0076 | Comparative table of torsion test results for various engine crankshafts. | ||
| View original record | TORSION TESTS OF CRANKSHAFTS - R.R & OTHERS. | ENGINE: | STD. PHANTOM. I + AC VII | SPORTS PHANTOM. EAC XIV | 1-C-1 | STD. 20 H.P. | EXPL. STIFFENED 20 H.P. | LORRAINE DIETRICH (6 CYL.) | FIRST IN DIA… | ||
| scan0077 | Comparative table of crankshaft dimensions for various Rolls-Royce and other engines. | ||
| View original record | DIMENSIONS OF CRANKSHAFTS — R-R. & OTHERS. ENGINES (PART NO.): 1. STD. PHANTOM EAC VII (E.78216) 2. SPORTS PHANTOM EAC XIV (E.76826) 3. 1-G-1 (E.18881) 4. STD. 20 H.P. (E.52062) 5. EXPL. STIFFER 20… | ||
| scan0078 | Technical drawing of a crankshaft. | ||
| View original record | [ "E76878 CRANK SHAFT.", "3.800'", "1.880'", ".975", "1.125", "1.500", "2.125"", ".025", ".825", "2.625", "4.000", "2.750 CRANK RADIUS", "TRH 13/8/19" ], | ||
| scan0079 | Technical drawing of a crankshaft with larger pins. | ||
| View original record | E.79351 CRANKSHAFT. LARGER PINS. 5.800, 1.880, .975, 1.000, 2.375, .825, 2.625, 4.000, TSa. 28/8/29. | ||
| scan0080 | Blueprint of a Chrysler '75' crankshaft with dimensions and weight calculations. | ||
| View original record | CHRYSLER '75' CRANKSHAFT. NOTES: SHAFT IS MACHINED ALL OVER EXCEPT HERE, WHICH IS LEFT AS FORGED. BALANCING HOLES ARE DRILLED LIKE THIS IN FOUR OF THE PINS. .062 RAD PINS AND JOURNALS DIMENSIONS:… | ||
| scan0081 | Letter from the Royal Aircraft Establishment discussing crankshaft stiffness and analysis methods. | ||
| View original record | G. 16/859. When Telephoning with regard to this letter please ask for Extension Number......20....... X4499 TELEGRAMS: Ballooning, South Farnborough. TELEPHONE: 108 North Camp, 361 Aldershot, & 103… | ||
| scan0082 | Engine vibration, specifically regarding critical speeds, crankshaft flexing, and flywheel systems in various engine types. | ||
| View original record | 2. gives satisfactory results. The flywheel system must surely represent conditions more closely for the amplitude of movement is not proportional to the distance from the node. I have found that in a… | ||
| scan0083 | Page 3 of a letter discussing lateral and torsional engine vibration, recommending further investigation. | ||
| View original record | 3. it agrees in frequency with the engine firing impulses over a certain speed range. This matter of lateral vibration is clearly one which calls for further investigation now that the air has been… | ||
| scan0084 | Proposal to incorporate a low inertia slipper wheel with a stiffer crankshaft and a request for a corresponding drawing. | ||
| View original record | To By. from Hs/Rm. filing X4499. Hs/Rm.2/MJ.4.9.29. x7010. x4499. S. S. STIFFER CRANKSHAFT. When we bring in the stiffer crankshaft we propose to incorporate the low inertia slipper wheel. We consider… | ||
| scan0085 | The machining and testing of two Nitro Alloy crankshafts. | ||
| View original record | To BY. from Hs/Rm. X4499. Hs/Rm. 5/MJ.13.9.29. X7010 X4499. | ||
| scan0086 | Torsion test report for a 20 HP (China) crankshaft. | ||
| View original record | To .R. from Hs/Tsn. C.c. RG. C.c. WOP. L. C.c. DS. EY. X 4499 Hs/Tsnl/AD14.10.29. X5010 X4499 TORSION TEST OF 20 H.P. (CHINA) CRANKSHAFT E.55307. This shaft, recently standardised, has a torsional… | ||
| scan0087 | Crankshaft periods and torsional vibration in V-S engines. | ||
| View original record | To R. from Hs/Tsn. c. Sg. c. WDR. Rg. c. A. EY. X 4499 Hs/Tsn5/AM.6.10.29. CRANKSHAFT PERIODS IN THE V-S ENGINE. x4499 x634 From remarks in RL/19.10.29, headed "Car Superchargers" we conclude that you… | ||
| scan0088 | Analysis of engine crankshaft stiffness and vibration periods with proposed solutions. | ||
| View original record | -2- In twin-4 car engines they succeed in keeping this period up by means of the short stiff shafts. In our case a reduction gear is fitted and we find the crankshaft stiffness is reduced thereby to… | ||
| scan0089 | Engine vibration solutions, comparing a damped spring drive with altering the engine V-angle. | ||
| View original record | -3- know where to add the stiffness. Alternative (1) would probably increase the weight of the engine a lot. We feel inclined to recommend the second alternative, namely the damped spring drive. If… | ||
| scan0090 | Page discussing altering a cylinder angle and consulting Major Carter of R.A.E. on an engine type. | ||
| View original record | -4- of altering the cylinder angle. We shall also get into touch with Major Carter of R.A.E. and get his experience on this engine type. Hs/Tsn. | ||
| scan0091 | Assessment of competitor 8-cylinder V-type engines, noting their performance and torsional vibration issues. | ||
| View original record | To R. From Hs/Rm. c. SS. c. WOr. RS. c. E. Hy. X.4499 Hs/AMS/AM.16.10.29. X.4449 X.4048 X.4024 X.3531 X.1729 X.3929 8-CYLINDER VEE ENGINE. We have now tried four cars with 8-cylinder vee engines, La… | ||
| scan0092 | Letter to Major Carter at the Royal Aircraft Establishment regarding crankshaft stiffness, torsional vibrations, and V-8 engines. | ||
| View original record | X 4499. Hs/Tsn3/AD. 19th October, 1929. Major Carter, Royal Aircraft Establishment, South Farnborough, Hants. Dear Major Carter, Crankshafts. The attached print shows another shaft we have twisted… | ||
| scan0093 | Dimensioned drawing showing a side and end view of a crankshaft component. | ||
| View original record | [ "E: 55307", "CRANKSHAFT.", "2.950", "1.500", "1.875", "1.750", "1.125", "1.550", "1.575", "4.150", "2.125", "3.250", "TSn. 10/10/24" ], | ||
| scan0094 | Letter from the Royal Aircraft Establishment discussing crankshaft stiffness and eight-cylinder engine design. | ||
| View original record | G.16/859. X.4499. When Telephoning with regard to this letter please ask for Extension Number......20........ TELEGRAMS : Ballooning, South Farnborough. TELEPHONE : 108 North Camp, 361 Aldershot, &… | ||
| scan0095 | List of obsolete 8-cylinder Vee aircraft engines and a discussion on gear ratio modifications and subsequent failures. | ||
| View original record | 2. The following list of 8-cylinder Vee aircraft engines may be helpful, although the engines are now for the most part obsolete - 70/100 H.P. Renault (70° Vee) 220 H.P. Sunbeam (Geared) Arab 110 H.P.… | ||
| scan0096 | Concluding page of a letter discussing the influence of gear ratio on the airscrew. | ||
| View original record | 3. The gear ratio provides a means for locating the criticals but the influence of the gearing is small if the connection between it and the airscrew is relatively rigid, since the node lies in this… | ||
| scan0097 | Recommendation to replace cast iron flywheels with steel ones on single-cylinder units due to stress concerns at high RPM. | ||
| View original record | To By. from Hs/Tsn. c. Wor. E. X4499 Hs/Tsn.1/MJ.16.12.29. FLYWHEEL FOR SINGLE-CYLINDER UNITS-E34561. X. 4499 X. 634 We observe that these have been instructed in cast iron; we have worked out the… | ||
| scan0098 | Investigation of dominant flywheel vibrations in 20 HP experimental cars. | ||
| View original record | To R. From Hs/Tsn. C. to SS. Nor. C. to RG. E. C. Ry. FLYWHEEL VIBRATIONS. We are concentrating on this particular vibration at present, as we find in the case of the 20 HP. that it is the dominant… | ||
| scan0099 | Flywheel vibration observations, measurements at different RPMs, and analysis of its behaviour on a test bed versus in a car. | ||
| View original record | -2- Rs/Tch.1/AL.2/D.18.29.Contd true at low speeds or when turned over by hand. We have observed this on about six engines, in the Test and Repl., Depts., and have measured it on four. The maximum… | ||
| scan0100 | Observations on flywheel vibration in various car models and modifications to a test rig for further investigation. | ||
| View original record | -3- Hs/TSH.1/HL.21.12.29.Contd. they might be expected to affect each other. The same phenomenon of flywheel vibration occurs with less intensity on the Phantom II, and in fact we first noticed it on… | ||
| scan0101 | Fatigue tests on various model crankshafts for the 'F' engine. | ||
| View original record | RHC. Dpt. Hs. R. (At Le Canadel) C. Sg. E. X 4499 Rg2/LW.20. 12. 29 MODEL TEST CRANKS Further to my note reference Rg/SFP2/LW.15.1.29 instructing fatigue tests on model cranks for the "F" engine to… | ||
| scan0102 | Testing of new bearing metals with higher tensile strength for a 20 HP engine. | ||
| View original record | X4499. R. (At Le Canadel) Hs. c. By. RHC. c. Sg. F. Hl. Rg3/LW.20. 12. 29 Hl. has been testing bearing metals on the rig which he has used for oil tests. He is doing some good work and will no doubt… | ||
| scan0103 | Test and examination report on a Phantom II low inertia slipper wheel crankshaft damper. | ||
| View original record | To Ay. From Hs/GWH. c. to Art. ME. c. to Om. 4499. Hs/GWH.1/WJ.3.1.30. x634 x7020 x4499 PHANTOM II LOW INERTIA SLIPPER WHEEL. We have tested and examined one of the first works produced low inertia… | ||
| scan0104 | Design and operation of the Phantom II Low Inertia Crankshaft Damper for K.2B series and onwards. | ||
| View original record | To Hm. From Hs/Rn. For Depot Sheet. X4499. For prints see other copy. Hs/Rn.1/MJ.3.1.30. X7010. X4499 PHANTOM 11 LOW INERTIA CRANKSHAFT DAMPER. K.2B. SERIES AND ONWARDS. (1) OBJECTS OF DESIGN AND… | ||
| scan0105 | Instructions for dismantling, erecting, and testing slipper wheels and driving springs. | ||
| View original record | -2- one or two degrees. When the starting handle is released, owing to the damping friction on the plate, the timing may not go back to the position which it will assume when the engine is running.… | ||
| scan0106 | Fatigue tests on model test crankshafts made from air hardening steel. | ||
| View original record | RHC. BI. Hs. C. SG. Wor. O. F. Ir. X4499. Rg/Tsn3/LW.15. 1. 30 MODEL TEST CRANKS Further to Rg2/LW.20./12. 29, we are so convinced of the importance of testing hardened crankshafts in aero engines… | ||
| scan0107 | Receiving super VNCA Crankshaft Steel from Vickers Limited to produce model crankshafts. | ||
| View original record | x499. R.H.G. c.Hs. e.G/Mt. BY/EM5/J.15.1.30. We have received from Messrs Vickers Limited, three pieces of their super VNCA Crankshaft Steel each 7"long by 4 1/2" diameter together with one test piece… | ||
| scan0108 | Blueprint showing the results of a model crankshaft fracture test. | ||
| View original record | DES 995 WEBS .295 THICK. FRACTURED 4,400,000 REVERSALS MODEL CRANK TESTS ROLLS-ROYCE, LIMITED PRINT ROOM 28 JAN 1930 DERBY | ||
| scan0109 | Responding to a report on the Phantom II Low Inertia Slipper Drive, addressing various identified issues. | ||
| View original record | X4499 Hs/GWH. From SFT. c. to Wor. c. to By. c. to MX. SFT.6/B4.1.30. x634 x7030 X4499 PHANTOM 11 LOW INERTIA SLIPPER DRIVE. Thanks for your report Hs/GWH1/MJ3.1.30. in which I note that generally you… | ||
| scan0110 | Cleaning lapping paste from spring drives and plates as a precautionary measure. | ||
| View original record | -2- Furthermore, with regard to point (a), it is possible that some d eposit which you may have thought was scale on the spring plate is really lapping paste, as we have now found in lapping the plate… | ||
| scan0111 | Results of torsion and fatigue tests on model cranks and shafts. | ||
| View original record | Rg. From Hs/Rn. 14499 Hs/Rn.1/MJ.31.1.30. Herewith results of the torsion tests on the model cranks and also fatigue tests so far run. We are at present running the test on the standard shaft and hope… | ||
| scan0112 | The comparative rig testing of standard and narrow web model crankshafts until fracture. | ||
| View original record | x4499 Rg. From Hs/Rn. Hs/Rn.3/MJ.13.3.30. MODEL CRANKSHAFTS. It will be remembered that we ran the standard model crankshaft and the narrowest web model crankshaft (i.e. 275 thick) through ten million… | ||
| scan0113 | Blueprint detailing model crank tests with diagrams and results. | ||
| View original record | MODEL CRANK TESTS ORIGINAL FLYWHEEL U648 I = 15.1 LBS FT² INCREASED TO 18.55 " " DES 989 WEBS .275 THICK TOTAL REVERSALS 10,000,000 UNBROKEN FLYWHEEL INERTIA INCREASED 30% FURTHER REVERSALS 1,444,264… | ||
| scan0114 | Blueprint of a crankshaft with flywheel, detailing test results and inertia modifications. | ||
| View original record | FLYWHEEL DATUM PEGS SWEATED ON FOR CONVENIENCE OF CLOCKING FLYWHEEL 4648 ORIGINAL I 15/66 lbs Ft² INCREASED INERTIA I 19.55 lbs Ft² DES. 995 MODEL OF E 82059 STANDARD CRANK. RUN 8,518,400 REVERSALS… | ||
| scan0115 | Test report on a Falcon III engine with a stiffened crankshaft and fitted flywheel to investigate torsional vibration. | ||
| View original record | RG. From Hs/VH. C. to W.O.T. C. to A.I.D. Y4499. Hs/VH.1/AJ.6.5.30. x3865 x4499 x2965 FALCON III ENGINES WITH STIFFENED CRANKSHAFTS. FLYWHEEL FITTED TO FALCON III ENGINES. We have carried out a test… | ||
| scan0116 | Note on engine vibration intensity observed outside the normal cruising range. | ||
| View original record | -2- Hs/Vl.1/ML.6.5.30.Contd. 740 R.P.M. was the position at which the vibrations reached maximum intensity, and as this is not within the normal cruising range of the engine we do not consider that it… | ||
| scan0117 | Model crank tests detailing inconsistent results and modifications to the testing procedure to induce failure. | ||
| View original record | To Rg. From Hs/Rm. X4499 Hs/Rm.3/MJ.19.5.30. MODEL CRANK TESTS. Further to Hs/Rm.3/MJ.13.3.30. We are not meeting with very consistent results on these tests. It will be recollected that we increased… | ||
| scan0118 | Test results for crank models DES.989 and E.32053, detailing performance metrics. | ||
| View original record | -2- Hs/Rm.3/MJ.19.5.30. Cotnd. DES.995.(continued). Model of DES.989 Crank. Webs .295" Thick. Flywheel R.P.M. increased to 400. Stroke 6". Total time run 2 hrs. 42 min. Total reversals 129,080.… | ||
| scan0119 | Listing different types of model cranks being manufactured and urging for their prompt delivery. | ||
| View original record | RHC. From Hs/Rn. X4499 Hs/Rn.2/MJ.4.6.30. MODEL CRANKS. We understand that you are making the following cranks for us. Four off - Increased bearing area cranks in the same steel as the Std. cranks we… | ||
| scan0120 | Summarizing the results of comparative tests on model cranks made from different materials. | ||
| View original record | X4499 To Rg. from Hs/Rm. Hs/RM1/AD14.8.30. Further to Hs/Rm3/MJ19.5.30. We have now completed the following comparative tests on Model Cranks of various materials. From the results it will be seen… | ||
| scan0121 | Test results for model crankshafts of different materials. | ||
| View original record | MODEL CRANK TESTS. Particulars of tests see Hs/Rm3/MJ13.3.30 and Hs/RM3/MJ19.5.30. Dimensions of all crankshafts .295 Webs. Des. 995. Model of Des. 989. Conditions of all tests. Stroke 6" Flywheel… | ||
| scan0122 | Test results for different crank materials, detailing run time, reversals, and flywheel RPM. | ||
| View original record | -2- CRANK MATERIAL. S/ZNCR. Brinell 310. Crank No. Total Time Run. Reversals. Average Flywheel R.P.M. 1 2 hrs, 15 min. 106,840 396 2 1 hr. 34 min. 74,320 396 3 1 hr. 24 min. 66,700 397 CRANK MATERIAL.… | ||
| scan0123 | Test results for model crankshafts made from Nitro Alloy steel. | ||
| View original record | X4499 To Rg. from Hs/Rm. Hs/Rm5/AD18.8.30. MODEL CRANK TESTS. We have now completed the tests on the model cranks make in Nitro Alloy steel with the following results :- Des. 995. Model of Des. 989… | ||
| scan0124 | Request for making and testing model cranks from different steel specifications. | ||
| View original record | Hs. RHC. o. R. Sg. Wor. o. E. By. Ev. RECEIVED 84499 Rg/Tsnl/DM.27.8.30. MODEL CRANK TESTS. Will you please make and test model cranks in the following materials:- 3 in CHNS, to specification 207C,… | ||
| scan0125 | Comparing the performance of nitralloy and C.H.N.S. materials for 'F' type engine crankshafts. | ||
| View original record | RHC. c. Hs. C. Rgr x4499 BY22/G. 27.8.30. CRANKSHAFTS MADE IN C.H.N.S. 'F' TYPE ENGINE. RHC4/BE. 8.7.30. In view of the very much improved performance in the model cranks of the nitralloy material… | ||
| scan0126 | Request for the creation and testing of model cranks made from various specified materials. | ||
| View original record | 84499 Hs. RHC. c. R. Sg. Wor. c. E. By. Lv. Rg/Tsnl/DM.27.8.30. MODEL CRANK TESTS. Will you please make and test model cranks in the following materials :- 3 in CHNS, to specification 207C, S/ZNX.… | ||
| scan0127 | Torsional and jogging test results for two modified Falcon model crankshafts with different web thicknesses. | ||
| View original record | FALCON MODEL CRANKSHAFTS TORSIONAL TESTS DES 995 K669S E.32551 Graph A: MODEL OF MODIFIED CRANK TO DES 989 WEB THICKNESS 'w' .295" Graph B: MODEL OF MODIFIED CRANK TO D.E.S 989 WEB THICKNESS 'w' .275"… | ||
| scan0128 | Torsional test results and diagrams for a Falcon model crankshaft. | ||
| View original record | X4499 FALCON MODEL CRANKSHAFTS TORSIONAL TESTS DES 995 MODEL OF E.32053 CRANK. DATUM POINTS. READINGS SHOWN ----- DENOTE DEFLECTIONS UNDER A LOAD OF 750 LBS. ON LEVER AT 8.125" RAD. " " --- " "… | ||
| scan0129 | Micro-examination report detailing hardness and other tests performed on RE Model Crankshafts. | ||
| View original record | MICRO-EXAMINATION REPORT. To-Hgs c. HS X44.99 M.711 25th September, 1930. RE MODEL CRANKSHAFTS. As requested, we have made a series of hardness and other tests on the above. The details are given… | ||
| scan0130 | Metallurgical analysis report detailing hardness, fracture appearance, and chemical composition of various steel shafts. | ||
| View original record | -2- TABLE II. Matl. mark & Crank No. | Brinell near fracture. | Rockwell hardness of case. | Depth of case. | Appearance of fracture. Core. | Case. S/NCR/3 | 317 | - | - | Partly crystalline. | -… | ||
| scan0131 | Analysis of slag content and microstructure in various steel shafts and crankshafts. | ||
| View original record | -3- Nitralloy Shafts. The slag particles were numerous, but were not found in the form of strings or streaks, and were fairly evenly distributed. The micro-structure of the case appears unusual. Below… | ||
| scan0132 | Mechanical test results for Nitralloy steel and Nickel case hardening steels to specifications 2072 and 2073. | ||
| View original record | -4- PREVIOUS MECHANICAL TESTS ON NITRALLOY STEEL AND NICKEL CASE HARDENING STEELS TO SPECIFICATIONS NOS. 2072 AND 2073. Nitralloy crankshaft forgings from Messrs. Firth-Derihon. Crankshaft No.… | ||
| scan0133 | Results of Izod and hardness tests on various case hardening steels. | ||
| View original record | -5- IZOD TESTS For these tests two of the bars were tested without nitriding and two after fully machining and nitriding. Foot-pounds. Test Bar No. Brinell. With case. Without case. - 269 54 65.5 -… | ||
| scan0134 | Discrepancies in the material specifications and test results for model crankshafts. | ||
| View original record | Rg. c.Hs. c.Hl. x4499 BY15/J.3.10.30. (B430) Model Crankshafts. ---------------- Referring to Hl's report No.M.711 of September 25th, on the above, we wish to place on record the following points:-… | ||
| scan0135 | Correcting a specification number for model crankshafts in a previous report. | ||
| View original record | X4499. M711a. Mr. Hs. (Strikethrough) H13/EA4.10.30. Laboratory. Re Model Crankshafts. With reference to your memo. BY15/J.3.10.30. We have not yet received copies of the specification for the higher… | ||
| scan0136 | Laboratory report comparing Izod test results for different steels used in model crankshafts. | ||
| View original record | Y4499. M711R. By. c to Hg. Hs. (20740/30) H15/EA6.10.30. Laboratory. Re Model Crankshafts. Further to our Report M711. The Izod tests on Case-Hardening Nickel steels, promised in our previous report… | ||
| scan0137 | Notification regarding the delivery of model crankshafts made from special steel for the Experimental Department. | ||
| View original record | Bg. c.Hs. x4499. BY/EM7/J.29.1.31. Model Crankshafts. We are advised that the model Crankshafts which the English Steel Corporation Limited were to supply in their special steel which they claim is… | ||
| scan0138 | Specifying the nitriding temperature and duration for experimental miniature crankshafts. | ||
| View original record | X 4499. Rg. c. to By. c. to Hs. c. to By/Hm. c. to WHC. Roy/Dn2/BH5.2312 RECEIVED 5 FEB 1931 HS Please note that we are informed by the English Steel Corporation Ltd. that the temperature at which the… | ||
| scan0139 | Results of crank tests for DES.995 models, including test conditions and a resume of previous tests. | ||
| View original record | To Rg. From Hs/Bl. X4 99 Hs/Bl.5/MJ.4.4.32. DES.995 MODEL CRANK TESTS. Three models of DES.989 crankshaft (.295" webs) stamped Vicker's Nitra Steel, were tested under the following conditions:- Rig… | ||
| scan0140 | Drawing of a Torsional Vibration Indicator. | ||
| View original record | TORSIONAL VIBRATION INDICATOR SECTION AA B A .150 THREAD TO BE TAPPED THRO' CENTRE OF SLOT Hs 363 P S/M THREAD TO E76615 .200 SLIDING FIT Rd. 2.825 DIA 1.800 4.200 DIA BRASS .100 THICK TO REPLACE… | ||
| scan0141 | Diagrams comparing bearing and balance weight arrangements for a 12-cylinder engine. | ||
| View original record | HS 534 7 BRG: L=34.8 4 BRG: L=30.7 3 BRG: L=29.8" CHRYSLER 12 WTS ALFA 5 WTS CHRYSLER DE SOTO 4 WTS A.C. 3 WTS 8 WTS 4 WTS ARRANGEMENT OF BEARINGS AND BALANCE WEIGHTS 12 CYL ENGINE 2.5 1.5 1.8 .8 1.7… | ||
| scan0142 | Drawing illustrating the setup for measuring torque and deflection on a crankshaft. | ||
| View original record | HS 435 TORQUE CENTRES 42.076" DEFLECTION CENTRES 40.366" FIXED END No 6 No 1 REAR DEFLECTION ARM LOAD LEVER FRONT DEFLECTION ARM. | ||
| scan0143 | Cross-section drawing of a gearbox assembly, showing shafts, bearings, and casing. | ||
| View original record | [ "7.900", "120-S.A.", "25 / 8 / 13" ], | ||
| scan0144 | Comparison of deflection and running particulars for two 'Condor Eccentric Web Type Model Cranks'. | ||
| View original record | CONDOR ECCENTRIC WEB TYPE MODEL CRANKS DES. 36 GRAPH A DEFLECTION IN INCHES .000 GRAPH B DEFLECTION IN INCHES .000 Data points on graph B: .015, .027, -.021, -.041, -.062 DATUM POINTS AS PER SKETCH… | ||
| scan0145 | Graphical analysis and data sheet detailing crankshaft deflection and failure tests for a Condor model engine. | ||
| View original record | CONDOR MODEL CRANKSHAFTS D.E.S. 36 STO TYPE WEBS A B DEFLECTION IN INCHES + .080 + .060 + .040 + .020 .000 - .020 - .040 - .060 - .080 NOTE PERMANENT SET ON BOTH CRANKS NIL. LOAD APPLIED = 750LBS… | ||
| scan0146 | Graphical analysis and particulars of running for 'Condor' Model Cranks. | ||
| View original record | "CONDOR" MODEL CRANKS D.E.S. 36 CONCENTRIC DISC TYPE GRAPH A DEFLECTION IN INCHES .000 GRAPH B DEFLECTION IN INCHES .000 DATUM POINTS AS PER SKETCH. NOTE READINGS SHOWN ----- DENOTE DEFLECTION UNDER A… | ||