Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | The Spectre Camshaft and Valve Springs, detailing changes to the tappet radius and valve lift curves. | ||
| View original record | X47 307 To Mr. [redacted] from E/PSN. E/PSN.2/HP.29.3.34. c. Mr. Ws. Hs. Spectre Camshaft and Valve Springs. We send you herewith LeC's 3855 and 3856 of the Spectre Inlet and Exhaust Valve Lift… | ||
| scan0002 | Timing and design of the Spectre Camshaft. | ||
| View original record | To E. +4647 307 Hs/Smth.18/KW.11.6.34. Spectre Camshaft. On examination of our experience with Bentley and 20/25, we consider that in order to ensure good slow running, the overlap on the Spectre… | ||
| scan0003 | Request to manufacture a new camshaft for the Spectre engine with specific modifications to improve slow running. | ||
| View original record | To RHC. [Handwritten]: 307 Hs/Smth.20/KW.11.6.34. Spectre Camshaft. We suspect that the camshaft instructed for the Spectre may not give sufficiently good slow running, and should like you to make a… | ||
| scan0004 | Note on camshaft toe measurements for the Spectre project, indicating deviations from the drawing are sufficient to cause noise. | ||
| View original record | Hs. X4644 307 SPECTRE Measurement of Camshaft toes indicate that they are in no way to drawing. Deviation quite sufficient to account for noise Pen | ||
| scan0005 | Test bed results and manufacturing inaccuracies of a Spectre Camshaft. | ||
| View original record | To REC. X4644 307 Hs/Rm.6/KW. 9.7.34. Spectre Camshaft. Further to our conversation about the balanced camshaft, here are test bed figures which have so far been obtained. Naturally it is difficult to… | ||
| scan0006 | Specification sheet for Spectre engine valve timings. | ||
| View original record | X4694 4.7.34. SPECTRE TIMINGS. The following are the actual and designed timings with .020 clearance :- Cylinder Inlet Valve Exhaust Valve Overlap O C Duration º O C Duration To Lec. 3855 TDC 50º ABDC… | ||
| scan0007 | Inlet and exhaust valve lift curve for a Spectre short duration camshaft. | ||
| View original record | X+64 P 307 L.f. Smith. To BY. from E/PSN. c. Hs/Rm. RHC E/PSN.2/HP.27.9.34. URGENT. ----- Spectre Short Duration Camshaft. ------------------------------ We send you herewith:- LeC.4120 of the inlet… | ||
| scan0008 | Graph comparing valve overlap with correct timing positions for various engines. | ||
| View original record | H.1523 VALVE OVERLAP WITH CORRECT TIMING POSITIONS SPECTRE 2 BOTH INLET CAMS (E.85234) (CAMSHAFT EX: 5042) TIMING .020 CLCE IO T.D.C E.C. T.D.C. BENTLEY (EB.1085) CAMSHAFT (CAM FORMS E.59272) TIMING… | ||
| scan0009 | New Spectre camshaft design with negative overlap and specific timing. | ||
| View original record | 7469T 307 RHC. From Hs/Smth. Hs/Smth.4/MA.1.10.34. SPECTRE CAMSHAFT. We are not satisfied with the slow running of Spectre and wish to try a camshaft with a negative overlap. Will you therefore make a… | ||
| scan0010 | Spectre camshaft design, comparing it with Cadillac, Bentley and 20/25 camshafts. | ||
| View original record | 460H# 307 To E. Hs/Rm.13/KW.3.10.34. Spectre Camshaft Design. We attach curves Hs.1523, showing a comparison of the Cadillac, Bentley, 20/25 and Spectre new and old type camshafts. The latest Spectre… | ||
| scan0011 | Graph comparing the Brake Mean Effective Pressure curves for various Cadillac, Bentley, and 20/25 R.R engines. | ||
| View original record | G.M.C. CORRECTION TO 103°F. BRAKE MEAN EFFECTIVE PRESSURE CURVES CADILLAC & ROLLS - ROYCE PRODUCTS Y-AXIS LABELS (LEFT): B.M.E.P. LBS/Sq In: DEGREES H.P. Y-AXIS LABELS (RIGHT): LB/FT LB/H.P. HR. FUEL… | ||
| scan0012 | Performance graph comparing different camshaft configurations for the Spectre engine with an open exhaust and 6:1 compression ratio. | ||
| View original record | X307 SP. 13 SPECTRE CAMSHAFT COMPARISONS. OPEN EXHAUST. COMPRESSION RATIO 6:1 B.V.42 / 13.2.35 GRINDING SEMI-SPLIT BIG ENDS LEGEND: ① No 2 UNIT HS 1536 CAMSHAFT. AEROLITE PISTONS. LEAD BRONZE BIG… | ||
| scan0013 | Request for a new Spectre camshaft with two keyways to achieve a more advanced timing. | ||
| View original record | To RHC. +307 Hs/Smth.4/KW.9.2.35. Spectre Camshaft E.86371. We wish to try a timing which is 6° more advanced than the present one. One tooth on the camshaft wheel is worth 12°, so we shall have to… | ||
| scan0014 | Specifications for the Spectre engine camshaft, including timing diagram and part numbers. | ||
| View original record | To RHC. x307 FILE ONLY Hs/Swdl.7/KW.2.3.35. Spectre. Will you please make the following Camshaft which can be numbered as Hs.1811. Exhaust cam to lead its inlet cam by 115½° in each case. Exhaust cams… | ||
| scan0015 | Dissatisfaction with the slow running on the Spectre camshaft and the intention to trial a modified version. | ||
| View original record | To RHC. c. to Hs/Swdl. +307 Hs/Smth.18/KW.11.3.35. Spectre Camshaft. We are still not satisfied with the slow running on Spectre and wish to try a camshaft similar to E.86371 but with more negative… | ||
| scan0016 | Specifications for the Spectre Camshaft, detailing cam forms, angle, and timing. | ||
| View original record | Hs.1832. Spectre Camshaft. Cam forms, inlet and exhaust Hs.1838. Angle between the cams - 116º. Timing with .020 clearance :- I.O. 4º ATDC. E.O. 48º BBDC. I.C. 44º ABDC. E.C. 8º BTDC. Other details to… | ||
| scan0017 | Data table for the Spectre Cam Form, detailing Cam Lift for Valve Closing at different divisions. | ||
| View original record | Hs.1838. Spectre Cam Form. | Division | Cam Lift A - B Valve Closing. | |---|---| | 146 | 0 | | 144 | .000128 | | 142 | .000512 | | 140 | .001152 | | 138 | .002048 | | 136 | .003200 | | 134 | .004608… | ||
| scan0018 | Testing a camshaft on Spectre 2 and requesting another be prepared for unit No.5. | ||
| View original record | x307 To RHC. Hs/Rm.17/KW.29.4.35. We have now tested the Camshaft to Hs.1832/8 on Spectre 2, and are satisfied that it is an improvement. Will you therefore please prepare another camshaft to the same… | ||
| scan0019 | Instructions to fit a camshaft and cylinder heads to Spectre No.5 unit for testing prior to fitting roller tappets. | ||
| View original record | X307 To RHC. c. to Hs/FD. c. to Hs/Swdl. Hs/Rm.15/KW.15.5.35. Will you please fit the camshaft to Hs.1832 to Spectre No.5 unit at present on the Test Bed, and at the same time put its own cylinder… | ||
| scan0020 | Proposed modification to the Spectre engine's valve gear oil circulation system. | ||
| View original record | To RHC. X307 Hs/Smth.18/KW.28.5.35. Spectre Camshaft & Tappets. We are inclined to think that the trouble with Spectre valve gear is due to the difficulty of maintaining an adequate circulation of… | ||
| scan0021 | With a drawing, specifying an additional lubrication hole drilling for the Spectre Camshaft. | ||
| View original record | To RHC. +309 Hs/Smth.8/KW.30.5.35. Spectre Camshaft Lubrication - Hs.1992. In addition to the .063" holes which we have shown in the centre of each section of the camshaft, we should like a .063" hole… | ||
| scan0022 | Design compromise for the Spectre Camshaft (EX.18044) and its proposed use in experimental cars. | ||
| View original record | 4307 To E. c. to E/JNR. Hs/Rm.2/KW.6.8.35. Spectre Camshaft. The camshaft which we have decided gives the best compromise on the Spectre is EX.18044. Particulars of this camshaft are given in… | ||
| scan0023 | Modifications to a Spectre Camshaft form. | ||
| View original record | +307 Hs/Smth.9/KW.5.8.35. Spectre Camshaft Ex.18044, Hs.1832, Form Hs.1838. This form is a modification of the short duration form E.86370 (LeC.4120), in which the closing toe has been shortened by 80… | ||
| scan0024 | Specifications for the Spectre Camshaft, including cam forms, angle, and timing. | ||
| View original record | Hs.1832. Spectre Camshaft. Cam Forms, inlet and exhaust Hs.1838. Angle between the cams - 116º. Timing with .020" clearance :- I.O. 4º ATDC. E.O. 48º BBDC. I.C. 44º ABDC. E.C. 8º BTDC. Other details… | ||
| scan0025 | Data table for the Spectre Cam Form, detailing the cam lift for valve closing. | ||
| View original record | Hs.1838. Spectre Cam Form. Division | Cam Lift A - B Valve Closing 146 | 0 144 | .000128 142 | .000512 140 | .001152 138 | .002048 136 | .003200 134 | .004608 132 | .006272 131 | .007122 For other… | ||
| scan0026 | Request to manufacture a modified Phantom III camshaft to reduce valve seating noise. | ||
| View original record | To RHC. X 307 Hs/Smth.18/KW. 7.10.35. Phantom III Camshaft. We want to try a camshaft similar to Ex.18044 but with a longer closing toe, in an attempt to reduce valve seating noise. Will you therefore… | ||
| scan0027 | Cancelling the instruction to make a long closing toe Ph.III camshaft. | ||
| View original record | To RHC. x304 Hs/Smth.7/KW.30.10.35. Ph.III Camshaft. Re the long closing toe camshaft asked for in Hs/Smth.18/KW.7.10.35. Since the original formers were modified to give the shorter closing toe, the… | ||
| scan0028 | Potential cracks in Phantom III marine type connecting rods and a proposed strengthening solution. | ||
| View original record | Rm x307 BY. c. RHC. c. Hs/Rm. E/JNR.2/HP.9.1.36. Phantom III Marine Type Connecting Rods. Reference RHC.5/ETM.24.12.35. Referring to the cracks which have developed in two of the strap type connecting… | ||
| scan0029 | Request to manufacture a Phantom III camshaft with long toes to test dispensing with silent tappets. | ||
| View original record | To RHC. x307 Hs/Smth,10/KW.11.1.36. Phantom III Camshaft. We wish to try a camshaft in Spectre with long toes, in the hope that we may be able to dispense with silent tappets. Will you please… | ||
| scan0030 | Instructions for testing and fitting the Rm.44 camshaft, designed to delete the use of silent tappets. | ||
| View original record | x307 To RHC. Ph.III. Hs/Swdl.2/JH. 21.3.36. We have concluded tests on No.1 unit fitted with Rm.44 camshaft which is designed to delete the use of silent tappets. Will you please remove this camshaft… | ||
| scan0031 | Urgent memo regarding a modified cam form for the Phantom III, and instructions to the Churchill Machine Company. | ||
| View original record | To BY. Copy to Hs/Rm. RHC. (Strikethrough) (307) E/PSN.1/MN.9.10.36. URGENT. We send you herewith LeC.5319 of a modified cam form for Phantom III in which longer toes have been obtained by cutting… | ||
| scan0032 | Letter to Churchill Machine Tool Co. Ltd. requesting a quotation for a master cam to produce an experimental camshaft. | ||
| View original record | E/PSN.1/MN. 5th. October 1936. Mr.Asbridge, Churchill Machine Tool Co.Ltd., Broadhill, Manchester. Dear Sir, We are using one of your Churchill Cam Grinding Machines for grinding the Phantom III… | ||
| scan0033 | Quotation from Churchill Machine Tool Co+ for a Double Master Cam and Special Index Plate for a Cam Grinding Machine. | ||
| View original record | COPY. THE CHURCHILL MACHINE TOOL CO+ LIMITED., Broadheath, Nr. Manchester. Your ref: E/PSN/1.MN. Our ref: HHA/AS. DH.15681. 7th. October, 1936. Messrs.Rolls Royce Ltd., DERBY. Dear Sirs, For the… | ||
| scan0034 | Experiment for a Phantom III camshaft with a reduced base circle to lower rubbing velocity. | ||
| View original record | 304 To EY. (struck through) Peiles Copy to EHC. (struck through) Hs/Rm. E/PSN.1/MN.14.10.36. ----------------- SWDL Camshaft with Reduced Base Circle Diameter S Phantom III. We send you herewith… | ||
| scan0035 | Modifications to the Phantom III Camshaft and Bottom Tappets to reduce cost and improve design. | ||
| View original record | Reideo 307. Swell. Please follow up Rm PY. c.c. Hs. Rm. FHC. E/JNR.1/HP.10.11.36. Phantom III Camshaft and Bottom Tappets. Ref. SFT/WNW.1/DR.1.10.36. We send you herewith:- LeC.5371 and LeC.5294.… | ||
| scan0036 | Brief note on investigations into valve spring materials, specifically hard-drawn piano wire and carbon steel wire. | ||
| View original record | Liles C.Rm. Swdll 1152 Any comments? BY.11/J.12.11.36. Rm VALVE SPRING MATERIALS. I attach hereto for your information, some brief notes in regard to valve spring materials as far as our… | ||
| scan0037 | Technical memorandum discussing the properties and use of different valve spring materials. | ||
| View original record | VALVE SPRING MATERIALS. As a result of the enquiries and discussions we have had recently on the above matter, the situation with respect to valve spring materials is as follows:- (1) CHROME VANADIUM… | ||
| scan0038 | Technical memorandum discussing the production of heat-treatable carbon steel and carbon steel wire for springs. | ||
| View original record | -2- (3) - Cont'd. We have not had any recent experience of this class of material, but there seems no reason why a heat treatable Carbon Steel can not be produced providing again that the maximum… | ||
| scan0039 | Modifications to the Phantom III camshaft to improve low-speed M.E.P. | ||
| View original record | 307 To E. from Rm/Swdl. Rm/Swdl.5/AP.19.11.36. PHANTOM III. CAMSHAFT. We are anxious to improve the low speed M.E.P. more or less irrespective of a drop in power at high speeds for the standard… | ||
| scan0040 | On the investigation of Phantom III roller tappets and the design of a new cam form. | ||
| View original record | To E. Reiles 309 E/PSN.1/MN.24.11.36. Copy to Rm. RHC. Ds. E/JNR. ----------------- SWDL Re Phantom III Roller Tappets. -------------------------------- Further to your memo. E.2/HP.13.11.36, we have… | ||
| scan0041 | Notice regarding the supply of hardened and tempered valve spring wire from a Swedish manufacturer for experimental tests. | ||
| View original record | Files SWST Ey. Rm. Ha. U 9 1152 BY/EM.26/J.26.11.36. VALVE SPRING WIRE OF SWEDISH MANUFACTURE. We are now definitely advised by the Swedish firm Aktiebolaget Garphytte Bruk, that the wire they will… | ||
| scan0042 | Short duration camshaft with large tappet clearances for the Phantom III engine. | ||
| View original record | Files eur 309 To BY. Copy to Ds. Rm. Hives RHC Rm/Swdl. ---------------- Phantom III Short Duration Camshaft for Running with Large Tappet Clearances. We send you herewith LeC.5401 of a short duration… | ||
| scan0043 | Cracking issues found in camshafts made from low carbon case hardening mild steel (UBAS type) after grinding. | ||
| View original record | 307 [Handwritten Note] Sewell - See me Perles Rm [Stamped Initials] H.H.S. C.E.P. C.B.T. G.Rm. C.F.F. BY/HM.16/J.23.7.37. ------------------- CAMSHAFTS IN LOW CARBON CASE HARDENING MILD STEEL (UBAS… | ||
| scan0044 | The testing of long toe camshafts with large tappet clearances for Phantom III and Wraith III models. | ||
| View original record | 307 Rm. Copy to Ds. [struck through] Rm/Swdl. E/PSN.2/M.23.4.37. CAMSHAFTS TO RUN WITH LARGE TAPPET CLEARANCES. We understand from Rm/Swdl. that the long toe camshaft for P.III. to run with large… | ||
| scan0045 | Enquiry to The Midland Motor Cylinder Co. about the experimental cost for a 12-cylinder engine camshaft casting. | ||
| View original record | ? what is 12 cyl. car. PIII 307 Rml/R. 18th November, 1937. The Midland Motor Cylinder Co.,Ltd., Birmid Works, Smethwick, BIRMINGHAM. Dear Sirs, We are considering trying out a camshaft for our… | ||
| scan0046 | Promotional leaflet and material specification for 'MONIKROM' moulded camshafts by The Midland Motor Cylinder Co. Ltd. | ||
| View original record | Specification MONIKROM The alterations in design necessary when adopting "MONIKROM" moulded camshafts are very minor, and such modifications as may be necessary can usually be arranged without… | ||
| scan0047 | Promotional document detailing the features and benefits of 'MONIKROM' moulded camshafts. | ||
| View original record | Assured Maximum CAM LIFE MORE MILES OF PROFITABLE PERFORMANCE REGULAR CAM hardness TAPPET & VALVE NOISES reduced DIE COSTS eliminated "MONIKROM" MOULDED CAMSHAFTS. In introducing the "MONIKROM"… | ||
| scan0048 | Letter from Midland Motor Cylinder Co Ltd acknowledging an enquiry about a 'Monikrom' material camshaft for a 12-Cylinder Car Engine. | ||
| View original record | The MIDLAND MOTOR CYLINDER CỌ LTD. Telegrams RAFWORK, SMETHWICK Telephone 1151-2-3 SMETHWICK MIDCYL Birmid Works, Smethwick Near Birmingham 30M RM HH/LS. Messrs.Rolls-Royce Limited, Purchasing… | ||
| scan0049 | Quotation from The Midland Motor Cylinder Co. Ltd for casting camshafts for a 12-cylinder car engine. | ||
| View original record | PASSr & GOODS SMETHWICK, L.& N.W.R. HANDSWORTH, G.W.R. SMETHWICK JUNCTION, G.W.R. QUOTATION. THE MIDLAND MOTOR CYLINDER CO. LTD 'CHROMIDIUM' CYLINDER CASTINGS AND BRAKE DRUMS Birmid Works, Smethwick… | ||
| scan0050 | Quotation document from The Midland Motor Cylinder Co. Ltd. outlining the conditions of sale for unmachined castings. | ||
| View original record | THE MIDLAND MOTOR CYLINDER CO. LD. BIRMID WORKS, SMETHWICK, Near BIRMINGHAM. CYLINDER CASTINGS PISTONS & PISTON RINGS AIR COOLED CYLINDERS BRAKE DRUMS AND HUBS QUOTATION CONDITIONS 1. All clerical and… | ||
| scan0051 | Letter to The Midland Motor Cylinder Co. requesting a price for supplying 200 camshafts. | ||
| View original record | Rm2/R. 27th November, 1937. The Midland Motor Cylinder Co.,Limited, Birmid Works, Smethwick, Nr. Birmingham. Dear Sirs, Thank you for your letter of the 26th, together with quotation for metal pattern… | ||
| scan0052 | Quotation letter for camshaft castings from The Midland Motor Cylinder Co. Ltd. | ||
| View original record | PASSgr & GOODS { SMETHWICK, L.& N. W. R. HANDSWORTH, G. W. R. SMETHWICK JUNCTION, G.W.R. } TELEGRAMS: "RAFWORK SMETHWICK" TELEPHONE HEAD OFFICE } 1151 / 2 / 3. QUOTATION. THE MIDLAND MOTOR CYLINDER… | ||
| scan0053 | Letter to The Midland Motor Cylinder Co. Ltd. regarding the price of a camshaft. | ||
| View original record | Rm12/R. 2nd December, 1937. The Midland Motor Cylinder Co.,Ltd., Birmid Works, Smethwick, BIRMINGHAM. Your Ref: AEP/LS. Dear Sirs, Thank you for your letter of the 1st December. The price of 8/9d… | ||
| scan0054 | Letter from the Midland Motor Cylinder Co. Ltd regarding missing drawings for a 4.5 litre camshaft and clarifying their process for quoting production castings. | ||
| View original record | The MIDLAND MOTOR CYLINDER Co LTD. Telegrams RAFWORK. SMETHWICK Telephone 1151-2-3 SMETHWICK Handwritten Note: SWDC & P.des Please send the necessary drawing Rm Birmid Works, Smethwick Near Birmingham… | ||
| scan0055 | Letter from a supplier discussing camshaft pricing, materials, and wear resistance. | ||
| View original record | THE MIDLAND MOTOR CYLINDER Co., LTD. CONTINUED, SHEET No.......2 Messrs.Rolls-Royce Limited, Derby. 7th December 1937 Actually, scrap percentage on camshafts is exceedingly low, and you need have no… | ||
| scan0056 | Suggested modification to a camshaft, showing a cross-section with dimensions. | ||
| View original record | TAP 7/16 DIA B.S.F .750" .850" SUGGESTED MODIFICATION TO CAMSHAFT R.R. DRG No E88127 T.D. 3022 28.11.36 Q 25 NOV 1938 | ||
| scan0057 | Letter to The Midland Motor Cyl. Co. apologising for not sending a camshaft drawing (EB.1085), which is now enclosed, and requesting a quotation. | ||
| View original record | 207 Rm/Swdl.2/JH. 9th December, 1937. The Midland Motor Cyl. Co. "Birmid Works", Smethwick, BIRMINGHAM. Dear Sirs, We thank you for your letter of the 7th inst.and regret our mistake in not sending… | ||
| scan0058 | Letter from the Midland Motor Cylinder Co. Ltd. acknowledging receipt of a camshaft drawing and advising a quotation will follow. | ||
| View original record | The MIDLAND MOTOR CYLINDER CO LTD. Telegrams RAFWORK SMETHWICK Telephone 1151-2-3 SMETHWICK [Handwritten]: Swoz Files [Handwritten]: 307 [Logo]: MIDCYL Birmid Works, Smethwick Near Birmingham FHM/LS.… | ||
| scan0059 | Letter from the Midland Motor Cylinder Co. Ltd. expressing concerns about manufacturing a lightweight camshaft, EB.1085. | ||
| View original record | Handwritten Text: SWDL - 307 Was this the Wraith Camshaft. Surely this is as heavy as the PIII Wraith .875 dia Bentley .9 dia PH II 1.2 dia Printed Letterhead: The MIDLAND MOTOR CYLINDER CO. LTD.… | ||
| scan0060 | Letter from The Midland Motor Cylinder Co. Ltd. regarding a drawing modification. | ||
| View original record | THE MIDLAND MOTOR CYLINDER Co., LTD. CONTINUED, SHEET No....... 2 Messrs.Rolls-Royce Limited, .Derby. 15th December 1937 portion at the end is quite unsuitable, and should be replaced by a 3/8" tapped… | ||
| scan0061 | Letter to The Midland Motor Cylinder Co. Ltd. agreeing to a tapped hole on drawing EB.2746 and requesting a quote for two experimental camshaft castings. | ||
| View original record | 307 ? Rm.10/AP. December 20th.1937 The Midland Motor Cylinder Co.Ltd., Birmid Works, Smethwick, Nr.BIRMINGHAM Dear Sirs, Thank you for your letter of December 15th. We agree to the 3/8" tapped hole as… | ||
| scan0062 | Proceeding with an experiment to test cast iron as a material for cams. | ||
| View original record | 307? Hs. from Rm. Rm17/R.29.12.37. We should like to go forward with this experimental purely from the point of view of finding out whether cast iron is a good material for cams. Rm. Attachment:-… | ||
| scan0063 | Proposing an experiment to test cast iron as a material for camshafts for the Wraith and Bentley III models. | ||
| View original record | Hs. from Rm. Rm Files 304. Rm17/R.29.12.37. We should like to go forward with this experiment, purely from the point of view of finding out whether cast iron is a good material for cams. Rm. WRAITH… | ||
| scan0064 | Quotation from The Midland Motor Cylinder Co. Ltd for experimental camshaft castings and pattern equipment. | ||
| View original record | PASSENGER & GOODS SMETHWICK, L. & N. W. R. HANDSWORTH, G. W. R. SMETHWICK JUNCTION, G. W. R. TELEGRAMS: "RAFWORK SMETHWICK" TELEPHONE HEAD OFFICE 1151 / 2 / 3. QUOTATION. THE MIDLAND MOTOR CYLINDER… | ||
| scan0065 | Letter to The Midland Motor Cylinder Co. regarding a change of order for experimental camshafts from part EB.1085 to EW.1416. | ||
| View original record | 307 Rm/Swdl.11/MH. Experimental Dept. 31st. December 1937. The Midland Motor Cylinder Co., Birmid Works, Smethwick, Birmingham. Dear Sirs, We thank you for the quotations given in your letter of the… | ||
| scan0066 | Letter from a supplier discussing the design and manufacturing of experimental 'Monikrom' camshafts. | ||
| View original record | *Files* (Handwritten) Swell - See me (Handwritten) 607 (Handwritten) 307 (Handwritten) Rm (Handwritten) The MIDLAND MOTOR CYLINDER Co. LTD. Telegrams RAFWORK SMETHWICK Telephone 1151-2-3 SMETHWICK… | ||
| scan0067 | Letter from The Midland Motor Cylinder Co. Ltd. regarding proceeding with pattern equipment and requesting a drawing. | ||
| View original record | THE MIDLAND MOTOR CYLINDER Co.. LTD. CONTINUED, SHEET No. 2......... 3rd January, 1938. Messrs. Rolls Royce Limited, DERBY. In accordance with the last paragraph of your letter we are proceeding… | ||
| scan0068 | Letter to The Midland Motor Cyl. Co. regarding the manufacture of experimental camshafts. | ||
| View original record | 607307 Rm/Swdl.4/MH. Experimental Dept. Messrs. The Midland Motor Cyl. Co., Birmid Works, Smethwick, Birmingham. 5th. January 1938. Dear Sirs, We thank you for your letter of the 3rd. re your making… | ||
| scan0069 | Letter from Midland Motor Cylinder Co Ltd regarding the proposed cast form of an experimental 'Monikrom' camshaft. | ||
| View original record | Handwritten annotation: Swdl - What material do they recommend with this shaft Rm The MIDLAND MOTOR CYLINDER Co LTD. Telegrams RAFWORK SMETHWICK Telephone 1151-2-3 SMETHWICK Birmid Works, Smethwick… | ||
| scan0070 | Casting drawing of a camshaft, detailing the cam profile and machining allowances. | ||
| View original record | THE CAST PROFILE OF EACH CAM IS IN ACCORDANCE WITH THE DETAIL BELOW & 5/64 MACHINING ALLOWANCE ON THE SIDES OF CAM. 5/64 MACHINING ALLOWANCE BETWEEN ALL CAMS. THE CHAINED CONTOUR INDICATES THE… | ||
| scan0071 | Letter to a supplier confirming machining allowances and inquiring about tappet material specifications. | ||
| View original record | 307 Rm/Swd1.5/MH. Experimental Dept. 17th. January 1938. The Midland Motor Cylinder Co., Birmid Works, Smethwick, Birmingham. Dear Sirs, We thank you for your letter of the 14th. inst. and would like… | ||
| scan0072 | Letter from The Midland Motor Cylinder Co. Ltd. regarding tappet materials suitable for use with Monikrom camshafts. | ||
| View original record | 307. SWDL Miles The MIDLAND MOTOR CYLINDER Co LTD. Telegrams RAFWORK, SMETHWICK Telephone 1151-2-3 SMETHWICK Our Ref:- TECH. DEPT. ECT/HA. MIDCYL Birmid Works, Smethwick Near Birmingham Your Ref:-… | ||
| scan0073 | Letter from a supplier confirming the dispatch of three sample cast iron camshafts for inspection. | ||
| View original record | Files 307 The MIDLAND MOTOR CYLINDER Co LTD. Telegrams RAFWORK SMETHWICK Telephone 1151-2-3 SMETHWICK [MIOCYL Logo] Birmid Works, Smethwick Near Birmingham FGC/MK Messrs. Rolls Royce Ltd., DERBY. Feb.… | ||
| scan0074 | Follow-up letter from The Midland Motor Cylinder Co Ltd regarding a report on sample camshafts. | ||
| View original record | Handwritten: Filer 607. 307? The MIDLAND MOTOR CYLINDER CO LTD. Telegrams RAFWORK, SMETHWICK Telephone 1151-2-3 SMETHWICK [MIDCYL Logo] Birmid Works, Smethwick Near Birmingham FGC/KR. Messrs.Rolls… | ||
| scan0075 | Letter to The Midland Motor Cylinder Co. regarding 3 sample camshafts made from 'Monikrom' material. | ||
| View original record | 607 307? March 23rd. 1938 Rm/Swdl.1/AP. The Midland Motor Cylinder Co., Birmid Works, Smethwick, Nr.BIRMINGHAM. Dear Sirs, In reply to your letter of the 22nd. regarding the 3 sample camshafts you… | ||
| scan0076 | Policy document regarding the replacement of worn Phantom III camshafts with automatic tappets. | ||
| View original record | 307. [Strikethrough Text: By] [Strikethrough Text: Rm.] [Strikethrough Text: Rus/GWH] [Strikethrough Text: Hd] [Handwritten: Paloswo2] BY.1/G.24.3.38. PHANTOM III. RE: POLICY FOR REPLACEMENT OF… | ||
| scan0077 | Letter to The Midland Motor Cylinder Co. regarding the testing of Monikrom camshafts and a new cast material for camwheels. | ||
| View original record | 6073 Experimental Dept. Rm/Swdl.11/MH. 24th. May 1938. The Midland Motor Cylinder Co., Birmid Works, Smethwick, BIRMINGHAM. Dear Sirs, Regarding the 3 Monikrom camshafts you cast for us to our drawing… | ||
| scan0078 | Letter from a supplier discussing the suitability of 'Monikrom' material for camshafts and gear wheels. | ||
| View original record | The MIDLAND MOTOR CYLINDER CO LTD. Telegrams RAFWORK SMETHWICK Telephone 1151-2-3 SMETHWICK Our Ref:- TECH.DEPT. ECT/HA. MIDCYL Birmid Works, Smethwick Near Birmingham Their Ref:- RN/SWDL.11/MH.… | ||
| scan0079 | Letter to The Midland Motor Cylinder Co. regarding quotes for a cam wheel, camshaft, and pattern alteration. | ||
| View original record | 607? 307? Experimental Dept. Rm/Swdl.1/MH. 30th. May 1938. The Midland Motor Cylinder Co., Birmid Works, Smethwick, Nr. BIRMINGHAM. Dear Sirs, We thank you for your letter of the 20th. and in view of… | ||
| scan0080 | Letter from Midland Motor Cylinder Co. Ltd. regarding a price quotation for Cam Wheel and Camshaft castings. | ||
| View original record | The MIDLAND MOTOR CYLINDER Cº LTD Telegrams RAFWORK-SMETHWICK Telephone 1151-2-3 SMETHWICK Messrs. Rolls-Royce Ltd., DERBY. Your Ref. Rm/Swol. 1/MH. Dear Sirs, We thank you for your letter of the 30th… | ||
| scan0081 | Testing 'Monikrome' cast iron camshafts for potential cost savings and improved performance. | ||
| View original record | To BY. & RHC. c. to HPg. c. to Hs/Vs. "MONIKROME" CAMSHAFTS. Some time ago we had some sample camshafts cast in the above material which are very promising and results in an appreciable saving. This… | ||
| scan0082 | Design drawing for a camshaft showing dimensions and cam positions. | ||
| View original record | Top Right Corner: ExS. 767 INVESTIGATION DESIGN ONLY FOR FINISHED DRAWING SEE ExS 768 Notes on Drawing: THE EXHAUST CAM LEADS ITS INLET CAM BY - 112° IN EACH CASE THE NUMBERS ON C/L OF CAMS CORRESPOND… | ||
| scan0083 | Investigation design drawing for a camshaft gearwheel. | ||
| View original record | TOP DATA TABLE: No OF TEETH: 54 DIAMETRAL PITCH: 10- NORMAL PITCH: .31416- CIRCULAR PITCH: .41539. PITCH DIA: 7.140- LEAD: 25.9302- ANGLE OF SPIRAL: 40° 51' 44" HAND OF SPIRAL: RH- ANGLE OF OBLIQUITY:… | ||
| scan0084 | Agreement to produce in-house castings for 'Monikrome' camshafts and gears. | ||
| View original record | Hs/VS. [crossed out] c. HPS. c. Rm/Swdl. c. Cgh/wm. [crossed out] Boy? File BY.5/G.25.6.38. "MONIKROME" CAMSHAFTS. -?- Referring to Rm/Swdl.7/JH.16.6.38. I am in agreement that we should produce… | ||
| scan0085 | Instructing Walker to make patterns for a monichrome camwheel and camshaft. | ||
| View original record | 307 HPS. from Rm. Rm5/R.27.6.38. Will you please instruct Walker to make the patterns for the monichrome camwheel and camshaft which we are asking RHC/Vs to produce experimentally. Rm. | ||
| scan0086 | Urging the completion of two experimental Monikrome camshafts and camwheels. | ||
| View original record | 307. To HPS. from Rm/Swdl. c. Mr.Walker (P.S.) c. Hs/Vs. Rm/Swdl.1/MH.7.7.38. MONIKROME CAMSHAFT. Further to our memo Rm/Swdl.7/JH.16.6.38 regarding the making of two experimental camshafts and… | ||
| scan0087 | The heavy expenditure on replacing Tappets and Camshafts on Phantom III cars and requesting a test car for experimental solutions. | ||
| View original record | 307? W/S - C from BY/SB. c. to BY. c. to Rm. BY/SB.4/MG.21.4.39 We are getting concerned about the possibility of our being faced with heavy expenditure in replacing Tappets and Camshafts on Phantom… | ||
| scan0088 | Offering a damaged Phantom III (chassis 6-AZ-124) for experiments with hydraulic tappets. | ||
| View original record | 307. S/W...BY/SB. c. to EH. -> Rm. Gxr C5/C24.4.39 PHANTOM III TAPPETS & CAMSHAFTS. BY/SB4/MG21.4.39 It so happens there is a car of this type on the point of completion in the Repair Department; the… | ||
| scan0089 | Work on Phantom III tappets and camshafts after accident repairs. | ||
| View original record | 307. W/S = C. c. to By. c. to Rm. c. to Cx. BY/SB.5/MG.26.4.39 PHANTOM III. TAPPETS & CAMSHAFTS Many thanks for your C5/C24.4.39, from which we note that we can have 3.A2-124 for our work on tappet… | ||
| scan0090 | 'Spectre' engine's big end construction, comparing it with American designs. | ||
| View original record | To E. from Hs/Rm. 317 Hs/Rm.3/KT.11.5.33. SPECTRE BIG END CONSTRUCTION. With regard to the big end construction, it would be interesting to know the actual increase in engine length due to side by… | ||
| scan0091 | Calculations and assumptions for seven and four-bearing Spectre engine crankshafts. | ||
| View original record | X Group. 317 To E. from Hs/Gry. Hs/Gry.1/KT.29.6.33. SPECTRE CRANKSHAFTS. We send you herewith some calculations on the seven and four bearing crankshafts for the Spectre engine. We have made the… | ||
| scan0092 | Drawing for the Spectre crankshaft, authorising the ordering of the forging and noting a potential design change. | ||
| View original record | To Dr. from E/JNR. c. Wor. Hs. re Spectre. Please receive herewith drawing: LeC.3770 showing the crankshaft and balance weights. The forging for this may now be ordered. There is one point on the… | ||
| scan0093 | The decision to delay ordering dies for crankshafts for Spectre & P.V. engines. | ||
| View original record | X6484 317 Roy. from Wor. cHs. Wor3/R.17.4.34. Crankshafts for Spectre & P.V. Engines. Roy2/RO.17.4.34. I shall be glad if you will please make a Diary Note, and bring this matter before me in about… | ||
| scan0094 | Status of crankshafts for Spectre & P.V. Engines being in abeyance. | ||
| View original record | x40H 317 (H is crossed out) To Wor. (struck through) From ROY. c. to M. (struck through) c. to Hs. Sinking of dies f (handwritten) ROY1/MG15.6.34 Crankshafts for Spectre & P.V. Engines Agreeably with… | ||
| scan0095 | From 'Wor' regarding the postponement of a £1,600 expenditure for crankshaft dies for the Spectre and P.V. engines, pending further engine testing. | ||
| View original record | x4694 317 Roy. from Wor. Copy to E. and Hs. Worl4/T20.6.34. Crankshafts for Spectre and P.V. Engines. Roy1/MG15.6.34. It is still undesirable, I think, to go to the expense of £1,600 to sink Dies for… | ||
| scan0096 | Lightened crankshaft design for the Spectre engine, detailing modifications and weight savings. | ||
| View original record | X6694 317 To-EH. from E/JNR. -------------------- c.c. RHC. Hs/Rm. -------------- E/JNR.10/HP.11.9.34. ---------------------- re Spectre Crankshaft. -------------------- We send you herewith:-… | ||
| scan0097 | Comparing the weights of two crankshaft types, Narrow Pin and Standard Bentley. | ||
| View original record | +31 7 22.3.35. Crankshaft Weights. lbs. ozs. Narrow Pin Type, Ex.1408 47 6 Standard Bentley, EB.1083 45 6 Difference in weight = 2 0 | ||
| scan0098 | Testing and issues with the Spectre Crankshaft Damper, including lubrication problems. | ||
| View original record | 4317 To E. c. to Wor. c. to By. Spectre Crankshaft Damper. We have fitted the larger crankshaft damper with the maximum inertia to No.1 car. Previously we had tried the original damper at loads… | ||
| scan0099 | Letter from Charles Weston & Co. discussing the superiority of their Gits oil seals and urging their adoption for motor car and aero engine applications. | ||
| View original record | APPROVED BY GOVERNMENT DEPARTMENTS. x317 CHARLES WESTON & Co., LTD. BRANCHES. A. AIERS & Son, 17, EATON ROAD, COVENTRY. MR. D. S. GIBB, 47, ACKERS STREET, OXFORD ROAD, MANCHESTER. MR. J. B. MORRISON,… | ||
| scan0100 | Letter from Charles Weston & Co. Ltd. proposing their Weston Oil Retainer seal. | ||
| View original record | Messrs. Rolls Royce Ltd. --------------------------- Gits Seals are fitted by the majority of the better class Motor Car manufacturers. As pointed out by our representative, we also make the Coil… | ||
| scan0101 | Spectre crankshaft from No.5 Unit, noting overheating bearings and requesting a pressure test before refitting. | ||
| View original record | x 317 To RHC. Hs/Rm.8/KW.31.5.35. Spectre Crankshaft out of No.5 Unit. The fact that the big end bearings on either side of the centre main bearing had showed signs of overheating indicates the… | ||
| scan0102 | The weights of Spectre Strap Connecting Rods. | ||
| View original record | X31 7 To E/McStay. Hs/Gry.15/KW.5.6.35. Spectre Strap Con. Rods. Forked Rod E.86117/9. Weight of large end - 2 lbs. 3 3/4 ozs. " " small " - 9 1/2 ozs. Complete - 2 lbs.13 1/4 ozs. Plain Rod E.86118.… | ||
| scan0103 | Official order be placed for two Gits Seals from Messrs. Charles Weston & Co.Ltd. | ||
| View original record | To Roy. 4317 Hs/Gry.19/KW.28.6.35. Will you please pass an official order to Messrs. Charles Weston & Co.Ltd., for 2 Gits Seals in accordance with the particulars given in our letter reference… | ||
| scan0104 | Letter to Charles Weston & Co. Ltd. requesting two split seals for testing to prevent oil leaks on an engine. | ||
| View original record | Exptl. Dept. Hs/Gry.18/KW. 28th June, 1935. Messrs. Charles Weston & Co,Ltd., Lincoln Chambers, Portsmouth Street, Kingsway, LONDON, W.C.2. Dear Sirs, With reference to the drawings you submitted to… | ||
| scan0105 | Letter from Charles Weston & Co., Ltd. regarding an order for Gits Oil Seals for Crank Shaft Bearings. | ||
| View original record | APPROVED BY GOVERNMENT DEPARTMENTS. CHARLES WESTON & Co., LTD. BRANCHES. A. AIERS & Son, 17, EATON ROAD, COVENTRY. Mr. D. S. Gibb, 47, ACKERS STREET, OXFORD ROAD, MANCHESTER. MR. J. B. MORRISON, 197,… | ||
| scan0106 | Request to send engine covers to a supplier for the creation of a split oil seal for the Spectre engine. | ||
| View original record | To RHC. +317 Hs/Gry.2/KW. 8.7.35. We have asked the Gits Oil Seal people to make us a split seal for the rear crankshaft bearing of the Spectre engine. They require for this purpose 2 covers to… | ||
| scan0107 | Secret memo discussing a cheaper crankshaft design with integral balance weights and an improved oil retaining device. | ||
| View original record | GRY X.317 To EY. from E/JNR. SECRET. E/JNR.2/HP.9.9.35. c. RHS. Hs/Rm. Please receive herewith:- LeC.4597 showing a crankshaft with integral balance weights. The amount of balance in the weights is… | ||
| scan0108 | Letter from Charles Weston & Co. Ltd. regarding a Split Gits Seal, confirming a shaft diameter and despatch of the part. | ||
| View original record | X317 APPROVED OF BY GOVERNMENT DEPARTMENTS. CHARLES WESTON & Co., LTD. BRANCHES. A. AIERS & SON, 17, EATON ROAD, COVENTRY. MR. D. S. GIBB, 47, ACKERS STREET, OXFORD ROAD, MANCHESTER. MR. J. B.… | ||
| scan0109 | Request to preserve and refit a crankshaft bearing with an oillite cage for further endurance testing. | ||
| View original record | To RHC. X317 Hs/Gry.8/KW. 24.9.35. Spectre Crankshaft. The small bearing with an oillite cage in the rear end of the crankshaft which has done 20,000 miles on Spectre III appears to be still in good… | ||
| scan0110 | Secret memo discussing the trials of different crankshaft types for the Phantom III Spectre chassis. | ||
| View original record | 4317 Hs. from E. c. Sg. Wor. By. RHC. E.2/HP.28.9.35. Phantom 3 Crankshafts. SECRET. We are about to send the second Spectre to France with a crankshaft having attached balance weights, as used… | ||
| scan0111 | Modifications and cost reduction for Phantom III and Spectre crankshafts. | ||
| View original record | To E. C. to SG. C. to WGR. C. to By. C. to RHC. +317 Hs/Rn.15/KW.1.10.35. Phantom III Crankshafts. With reference to E.2/HP.28.9.35, whilst we are anxious to urge any experiments to reduce the cost of… | ||
| scan0112 | Agreement on manufacturing Phantom III crankshafts from solid material for testing purposes. | ||
| View original record | X317 To Hs. from E. c. Sg. Wor. By. RHC. E.7/HP.2.10.35. Phantom 3 Crankshafts. With reference to Hs/Rm.15/KW.1.10.35, we are quite in agreement with this crankshaft being made from the solid without… | ||
| scan0113 | Delivery issue with the supplier, Gits Seal. | ||
| View original record | To Roy. X317? Hs/Gry.12/KW.21.10.35. With regard to the attached letter from the Gits Seal people, we suggest telling them that we do not want delivery of their second seal until we have tried the one… | ||
| scan0114 | Agreement to modify the Phantom III Crankshaft by omitting the milling of chamfers for cost reasons. | ||
| View original record | Rm 4317 BY. c. Sft. Hs/Rm. RHC. E/JNR.2/HP.11.12.35. Phantom 3 Crankshaft. We agree to the request made by Sft. on account of cost, to do without the milling away of the chamfers at the top of the… | ||
| scan0115 | Letter from J. & A. Hillman Ltd. advertising their oil seals, brake linings and other components. | ||
| View original record | Telegrams: HILLMAN DUDLEY Telephone: 2476 DUDLEY (PRIVATE BRANCH EXCHANGE) LONDON: 39, VICTORIA ST. S.W.1. TELEPHONE: VICTORIA 4330 (2 Lines) (Handwritten) X317 J. & A. HILLMAN LTD DUDLEY WORCS.… | ||
| scan0116 | Letter from Charles Weston & Co. Ltd. requesting feedback on a previously supplied Split Type Oil Seal. | ||
| View original record | APPROVED OF BY GOVERNMENT DEPARTMENTS. CHARLES WESTON & Co., LTD. BRANCHES. A. AIERS & Son, 17, EATON ROAD, COVENTRY. MR. D. S. GIBB, 47, ACKERS STREET, OXFORD ROAD, MANCHESTER. MR. J. B. MORRISON,… | ||
| scan0117 | Research on crankshaft dampers for a 12-cylinder engine, with data obtained from General Motors. | ||
| View original record | x317 Hs/Smth. LE Smith. See me please Da.1/HP.7.3.36. Pan Crankshaft Dampers. The information obtained from General Motors Research is - For a 12 cylinder engine:- Inertia - 10% to 20% of total… | ||
| scan0118 | Letter to Charles Weston & Co. Ltd. regarding a supplied split seal. | ||
| View original record | X317 Exptl. Dept. Hs/Gry.8/KW. 12th February, 1936. Messrs. Charles Weston & Co.Ltd., Quinton Road, Coventry. Dear Sirs, Replying to your letter of the 11th inst., owing to having found a cheaper… | ||
| scan0119 | Investigation into an imbalanced Phantom III crankshaft, flywheel, and clutch assembly causing vibrations. | ||
| View original record | To RHC. x317 Hs/Std.1/JH.4.4.36. Balance of Ph.III Crankshaft, Flywheel & Clutch Assembly. As you are probably aware, we recently experienced trouble on 33-LX car, due to vibrations caused by the… | ||
| scan0120 | Balancing of crankshaft, flywheel, and clutch assemblies to prevent vibrations. | ||
| View original record | -2- HS/Std.1/JH. 4.4.36. all crankshaft, flywheel, and clutch assemblies should be balanced in the final state in which they will run in the car, unless this is done serious vibrations and noise will… | ||
| scan0121 | Inquiring about the cause of a propeller shaft vibration on vehicle 32-EX. | ||
| View original record | To RHC. X317 Hs/Rm.8/KW.8.4.36. When 32-EX came out of the shop about 3 weeks ago, it had a violent propellor shaft vibration. The propellor shaft was changed, which cured the trouble. We never heard… | ||
| scan0122 | Deflection test on a Phantom III crankshaft and the requirement for Packard-type balance weights. | ||
| View original record | To E. X-317 Hs/Gry.20/KW.13.6.36. Packard Balance Weights for Phantom III. The deflection test we conducted on a Phantom III crankshaft showed that the restoring couple required is 60% of the… | ||
| scan0123 | Blueprints for a Phantom III chassis crankshaft experiment using Packard type balance weights. | ||
| View original record | To. RWC ~~Compton~~ c. Hs/Gry. x317 BY/CS10/EH.9.9.36. Re Phantom III Chassis - Crankshaft - Section 5010. LeC.5230 - Packard Type Balance Weights. Please receive herewith blue prints of the following… | ||
| scan0124 | Query about the dynamic balancing device for the Phantom III crankshaft and a reminder for die casting costs for the rear axle. | ||
| View original record | To Hs/Gry. x317 Hs/Rm.29/KW.19.10.36. What has happened to the dynamic balancing device for the front end of the Phantom III crankshaft? Do not forget to get costs for dies for casting the rear axle… | ||
| scan0125 | Proposal for a new, lighter crankshaft design for the Phantom III engine to accommodate Hall's metal big ends. | ||
| View original record | X317 To E. c. to Da. c. to By. Hs/Gry.6/KW.20.10.36. Phantom III Crankshaft. In order to run Hall's metal big ends on Phantom III it is necessary to reduce the crankpin diameter by 1/8". This… | ||
| scan0126 | Requesting the modification of a Phantom III crankshaft to reduce balance weight and torsional period. | ||
| View original record | To RHC. From Rm/Gry. 1317 Rm/Gry.21/MJ.28.10.36. PHANTOM 111 CRANKSHAFT. We wish to try a crankshaft having less balance weight as a way of reducing the torsional period. We send you herewith SK.5021… | ||
| scan0127 | 'Rm' to 'Hs' recommending the immediate adoption of a suggestion from an attached document. | ||
| View original record | To Hs. From Rm. c. to E. 317 Rm.15/MJ.30.10.36. Re. the attached. This is a sensible suggestion and we think should be adopted forthwith. Rm. Attached: Rm/Swdl.14/MJ.30.10.36. | ||
| scan0128 | Suggested improvement for dismantling the spring drive on Ph.lll experimental engines. | ||
| View original record | Rm/Swdl.14/MJ.30.10.36. SUGGESTED IMPROVEMENT FOR DISMANTLING OF SPRING DRIVE. On the original Ph.lll experimental engines, the diameter of the slipper wheel was smaller than the present standard… | ||
| scan0129 | Blueprint comparing the 'present standard' and a 'suggestion' for a fan pulley and slipper drive assembly. | ||
| View original record | FAN PULLEY SLIPPER DRIVE CRANKCASE (TOP HALF) SUMP PRESENT STANDARD SUGGESTION | ||
| scan0130 | Design modifications to the Phantom III crankshaft to reduce weight. | ||
| View original record | GRY Please instruct in X 317 DI. c. Rm. RHC. Hycro. Rm E/JNR.1/HP.4.11.36. re Hs/Gry.6/KW.20.10.36. Phantom III Crankshaft. We send you herewith:- LeC.5361 showing the above suitable for the small… | ||
| scan0131 | New drawings for a Packard Type Balance Weights Lightened Crankshaft for the Phantom III chassis. | ||
| View original record | 217 c. Rn/Gry. BY/CS7/E.18.11.36. Phantom III. Chassis. LeC.5361. Packard Type Balance Weights Lightened Crankshaft. (2.125 Dia. Crankpins). Crankshaft. Sec.5010. Please receive herewith blue prints… | ||
| scan0132 | Confirming an instruction to drill an extra hole in the journals of two Packard type cranks and one 'Hykro' standard crankshaft. | ||
| View original record | HPS. from Rm/Swdl. γ Rm/Swdl.4/AP.26.1.37. CRANKSHAFTS PH.III. 317. This memo to confirm that you will drill an extra hole in the Journals of the two Packard type cranks, also in the 'Hykro' standard… | ||
| scan0133 | Requesting a test on the Phantom III crankshaft damper at 5000 r.p.m. | ||
| View original record | To W.Bell. c.c. to HPS. c.c. to Rm/Gry. 317 Rm/Smth.7/JH.13.2.37. PHANTOM III CRANKSHAFT DAMPER. Confirming our conversation will you please arrange to run a Phantom III crankshaft damper at a steady… | ||
| scan0134 | Details and working principles of the Floating Weight Vibration Damper for the Phantom III. | ||
| View original record | To HPS. 317 E/PSN/AHF.1/MN.9.2.37. Copy to BY. Rm. Rm/Gry. Ds. Rm/Swdl. Floating Weight Vibration Damper. Phantom III. LeC.5487. We send you herewith two prints of each of the following details:-… | ||
| scan0135 | Possibility of lightening damper parts and requesting the centre of gravity information for a finished weight. | ||
| View original record | -2- E/PSN/AHF.1/MN.9.2.37. If the damper proves satisfactory it is possible that the parts may be lightened, but since haphazard machining would alter the centre of gravity of the weights and thereby… | ||
| scan0136 | Specifications and performance of a floating weight vibration damper and associated rollers. | ||
| View original record | To HBS. Copy to Bev. [strikethrough] Rm/Gry. 9 GRL 317 E/PSN/AHF.1/M.1.6.37. FLOATING WEIGHT VIBRATION DAMPER - PH.III. LeC.5487. -------------------------------------- We send you herewith two prints… | ||
| scan0137 | Modifications to the Phantom III Crankshaft, including changes to the journal bearings, crankpins, and connecting rods. | ||
| View original record | Handwritten: Sude- You can now urge this Rm Liles 317 BY. c. Rm. HPS. E/JNR.1/HP.23.6.37. Phantom III Crankshaft. ---------------------- We send you herewith:- LeC.5750 showing the crankshaft made… | ||
| scan0138 | Experimental project to modify a crankshaft to give improved bearing area. | ||
| View original record | 1020. 317. EXPERIMENTAL PROJECT - CHASSIS DATE 15/7/37 DESCRIPTION: Crankshaft to give improved bearing area Sg 2S/E 14.7.37. leC. 575d PURPOSE: To improve the P.III bearing area NEW OR MODIFIED… | ||
| scan0139 | Letter to the National Physical Laboratory requesting addresses of firms working on cast steel crankshafts. | ||
| View original record | 317. Rm.7/AP. August 21st.1937 The National Physical Laboratory, Teddington, MIDDLESEX Dear Sirs, For the attention of the Engineering Dept. During my recent visit to The National Physical Laboratory… | ||
| scan0140 | Letter from the National Physical Laboratory concerning work on cast steel crankshafts. | ||
| View original record | The National Physical Laboratory ENGINEERING DEPARTMENT Teddington, Middlesex. TELEGRAMS :- 'PHYSICS TEDDINGTON' TELEPHONE:- MOLESEY 1380 (11 LINES) YOUR REF: RM 7/AP 21.8.37. OUR REF: Eng/2 ALL… | ||
| scan0141 | Modifications to the test loads for the Phantom III crankshaft damper and spring drive. | ||
| View original record | Rm/Swdl. files 317 BY/NS.5/G.4.11.37. PHANTOM III. CRANKSHAFT DAMPER AND SPRING DRIVE. ARRGT. NO. E.86976. Item 1. Note No.8. We understand that some modification is pending to the tests applied to… | ||
| scan0142 | Alteration to the Phantom III Crankshaft Damper and Spring Drive arrangement drawing. | ||
| View original record | To By/NS. from Rm/Swdl. 317 Rm/Swdl.6/AP.8.11.37. Phantom III. Crankshaft Damper and Spring Drive. In reply to your memo By/NS.5/G.4.11.37. requiring limits for the loadings on the above, the only… | ||
| scan0143 | Standardisation of extra oil holes in the spring drive centre plate to improve lubrication of cotton duck friction washers. | ||
| View original record | RR 755 (10H) 46071 18-8-37 WHK 27059 LS Completed 16.11.37. PHANTOM III STANDARDISATION of PARTS. Date 19.10.37 Description of Parts: Extra oil holes in spring drive centre plate to improve… | ||
| scan0144 | Standardisation report for the Phantom III concerning the drilling of additional oil holes in the spring drive centre plate. | ||
| View original record | Date: 19.10.37 No. X 311 Drawing No. M.R. Part No. 406 PHANTOM III STANDARDISATION OF PARTS Description of Part: Extra oil holes in spring drive centre plate to improve lubrication of cotton duck… | ||
| scan0145 | Modifications to the Phantom III crankshaft design. | ||
| View original record | To By. from Rm/Gry. c. Hs. c. Da. 317 Rm/Gry.1/AP.19.11.37. P.III. CRANKSHAFT. Since using Hall's metal big ends we are now in the position that the life of the big ends is greater than that of the… | ||
| scan0146 | Suggested five-step process for manufacturing hardened crankshafts. | ||
| View original record | CRANKSHAFTS. In connection with the suggestion that we try out a .4/.5 carbon steel for our crankshafts, working at a brinell round about 400, the method which I had in mind for handling the… | ||
| scan0147 | Design modifications for a Phantom III crankshaft featuring wider intermediate journal bearings. | ||
| View original record | 317 BY/NS c. Rm. DA.1/G.11.12.37. PHANTOM 111 - CRANKSHAFT. We send herewith E.CD.284 Crankshaft with Wider Intermediate Journal Bearings - Phan. 111. This design has been made in accordance with… | ||
| scan0148 | Proposed changes for a new carbon crankshaft design for the Phantom III model. | ||
| View original record | 317 Hs. from Rm. Rm7/R.15.12.37. CARBON CRANKSHAFTS FOR P.III. With reference to the attached Project Sheet the circumstances are as follows:- We want a Packard type of crank to save cost in forging.… | ||
| scan0149 | Project to produce two crankshafts, one of which is a Packard type for the 39-EX. | ||
| View original record | 317 To HPS. from Rm/Gry. Rm/Gry.4/AP.18.1.38 P.III. CRANKSHAFT. Herewith project sheet signed by Hs. for two crankshafts in .4 carbon steel. We should like to make the first of these to E.88364… | ||
| scan0150 | Production of a Phantom III crankshaft from .4 carbon steel. | ||
| View original record | 1261. To Rm/Gry. from HPS. HPS.7/VS.21.1.38. PHANTOM III CRANKSHAFT. We return herewith, as requested, project sheet in connection with production of the above crankshaft in .4 carbon steel. In… | ||
| scan0151 | The stock and potential standardisation of Phantom III Packard Crankshaft forgings. | ||
| View original record | To RHC/SB. from Rm/Gry. 317 P.III PACKARD CRANKSHAFT E.88364. Will you please let us know how many P.III crank-shaft forgings there are in the works. If we issued a standardisation sheet for the above… | ||
| scan0152 | Phantom III crankshafts, confirming delivery of 'D' series forgings and discussing the economics of a new Packard type shaft for future 'E' and 'F' series chassis. | ||
| View original record | To Rm/Gry.....RHC/SB. 317. L.S RHC/SB.1/LS.4.3.38. SWOZ PHANTOM III CRANKSHAFTS. ? In reply to Rm/Gry.4/MH.1.3.38. we would confirm that all crankshaft forgings,E.86615, are now delivered for Phantom… | ||