Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Letter from The Light Production Co. Ltd. regarding a manufacturing error on experimental pistons EXS 928. | ||
| View original record | 1258 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0002 | Page 2 of a letter from The Light Production Co. Ltd. regarding the supply of correct pistons. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. We sincerely hope therefore that by making some use of these, progress of your tests will not be seriously delayed, and in the meantime we will make every effort to let… | ||
| scan0003 | The order of piston rings from Wellworthy Piston Rings Ltd. | ||
| View original record | 1256. To Roy. from Rm/CTS. c. G/JWH. Rm/CTS.11/MH.10.11.38. Will you please order from Wellworthy Piston Rings Ltd., Lymington, HANTS. four sets of piston rings as follows:- 24 off EB.4382 Compression… | ||
| scan0004 | Request to Wellworthy Piston Rings Ltd. for the production and supply of various piston rings. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.10/MH. 10th. November 1938. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Blackith. Dear Sirs, Will you please produce and supply four sets… | ||
| scan0005 | Order for pistons from The Light Production Co. Ltd. | ||
| View original record | 1256. To Roy. from Rm/CTS. c. G/JWH. Rm/CTS.10/MH.11.11.38. Will you please order from:- The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, LONDON, S.W.1. 14 Pistons PD.304 - O/N.52469.… | ||
| scan0006 | Request to The Light Production Co. Ltd. to produce 28 pistons to two different specifications. | ||
| View original record | 1256. Experimental Dept. Rm/CTS.9/MH. 11th. November 1938. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, Will you please… | ||
| scan0007 | Letter from The Light Production Co. Ltd. regarding the production of 14 pistons and a query about a sample oxide surface treatment for piston rings. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0008 | Letter from Wellworthy Piston Rings confirming prices and delivery for various rings. | ||
| View original record | SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD. E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143… | ||
| scan0009 | Modifications to the Wraith piston due to issues with carbon build-up and grinding. | ||
| View original record | 1256. To By. c. to Dn. c. to RHC. Rm/CTS.6/JH.22.11.38. PISTONS. Further to our report Rm.5/R.4.10.38. As a result of tests carried out in the above report, the Wraith piston has been modified by… | ||
| scan0010 | Request to The Light Production Co. Ltd. for 14 modified Aerolite pistons with a .440 raised crown for further experimentation. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTC./JH. 25th. November, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON. For the attention of Mr. Brooks. Dear Sirs, Further to our experiments with… | ||
| scan0011 | Request to send an order for different types of pistons to The Light Production Co.Ltd. | ||
| View original record | 1256- To Roy. c. to G/JWH. Rm/CTS.2/JH.26.11.38. Will you please send an order to The Light Production Co.Ltd., 60/66 Rochester Row, LONDON. for 21 Pistons (Raised crown .300) Rm.522. 14 " ( " " .440)… | ||
| scan0012 | Letter from the Experimental Department requesting modified 'Aerolite' pistons for ongoing experiments. | ||
| View original record | 1256. EXPERIMENTAL DEPARTMENT. Rm/CTS.4/JH. 26th. November, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON.S.W.1. For the attention of Mr.Brooks. Dear Sirs, Further to… | ||
| scan0013 | Letter to The Light Production Co. Ltd. clarifying details for an order of pistons and providing drawings. | ||
| View original record | x 1256. EXPERIMENTAL DEPARTMENT. Rm/CTC.7/JH. 29th. November, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON. S.W.1. Dear Sirs, We recently ordered from you 14 pistons Piece… | ||
| scan0014 | Enquiry to The Light Production Co. Ltd. about the availability of dies for special pistons used in E.R. Hall's T.T. Bentley. | ||
| View original record | 1256. EXPERIMENTAL DEPARTMENT. Rm/CTT.6/JH. 30th. November, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, We are writing to… | ||
| scan0015 | Letter to The Light Production Co. Ltd. regarding modifications to raised crown pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.9/JH. 1st. December, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, WESTMINSTER. LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, In answer to… | ||
| scan0016 | Letter to Light Production Co. Ltd. requesting prints of modified detail drawings for pistons. | ||
| View original record | Light Production Co.Ltd. -2- Rm/CTS.9/JH.1.12.38. We would be obliged if you will supply prints of your detail drawings incorporating these modifications, giving them your own piece numbers. This will… | ||
| scan0017 | Modifications to piston dimensions to align with 'Aerolite' pistons. | ||
| View original record | 1258. To By. c. to Ds. c. to Mx. Rm/CTC.3/JH.2.12.38. PISTONS. With further reference to our memo. ref. Rm/CTC.6/JH. 22.11.38. We have now brought the dimension of lands of the R.R. piston in line… | ||
| scan0018 | Letter confirming the availability of foundry equipment and supplies of Aerolite Pistons for the T.T. Bentley 4 1/4 litre engine. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0019 | Letter from The Light Production Co. Ltd. regarding modifications to Aerolite Pistons and corebox dimensions. | ||
| View original record | 1258. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO.LTD… | ||
| scan0020 | Correspondence from The Light Production Co. Ltd. regarding modifications to piston castings. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. 1. Proceed with the machining of these castings so as to make the Pistons to the dimensions existing prior to the modification outlined in your letter of December 1st. 2.… | ||
| scan0021 | Letter from the Experimental Department to a supplier regarding modifications to piston crown dimensions. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.6/JH. 3nd. December, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster. LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, We thank you… | ||
| scan0022 | Letter from The Light Production Co. Ltd. regarding the machining and production of pistons. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO.LTD… | ||
| scan0023 | The Bentley III High Compression Split Piston. | ||
| View original record | 1256 Rm Da.12/G. 8.12.38. Bentley III - High Compression Split Piston - referring to memo Rm/CTS.3/JH. 2.12.38. in file 436. | ||
| scan0024 | Letter to Automotive Engineering Co. Ltd. regarding tests on heat distribution in pistons. | ||
| View original record | 1256. Experimental Dept. Rm/CTS.6/MH. 8th. December 1938. Automotive Engineering Co. Ltd., The Green, Twickenham, MIDDX. For the attention of A.V.Nicolls, Esq. Dear Sirs, Our Mr. Butterworth, who… | ||
| scan0025 | Letter regarding foundry equipment for T.T. Bentley pistons and ordering Ferrox treated rings. | ||
| View original record | 1256. EXPERIMENTAL DEPARTMENT. Rm/CTS.2/JH. 12th. December, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster. LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, With… | ||
| scan0026 | Letter to Light Production Co.Ltd. requesting an approximate delivery date for raised crown pistons for testing. | ||
| View original record | -2- Light Production Co.Ltd. Rm/CTS.2/JH.12.12.38. With reference to the various raised crown pistons. It would help if you could give us an approx. delivery date for these, as we are then better able… | ||
| scan0027 | Letter from The Light Production Co. Ltd. regarding the naming of 'Cellex' and 'Cellotin' piston ring treatments and confirming order details. | ||
| View original record | C.T.S. 1256. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION… | ||
| scan0028 | Letter from The Light Production Co. Ltd. concerning orders for right and left hand crowns and raised crown pistons. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. 2. The quantity of 14 requisitioned against your order No. 75836 with the right and left hand crowns, Wednesday 21st instant. 3. The quantity of 14 requisitioned against… | ||
| scan0029 | Order for seven modified Aerolite pistons from Light Production Co. Ltd. | ||
| View original record | 1256 To Roy. c. to G/JWH. c. to Roy/AW. Rm/Cts.3/JH.17.12.38. Will you please send an order to Light Production Co.Ltd., 60/66 Rochester Row, Westminster.W.1. for - Seven Aerolite pistons, having the… | ||
| scan0030 | Request to The Light Production Co. Ltd. for the supply of seven modified 4 1/4 litre Bentley Aerolite Pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.2/JH. 17th. December, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster. LONDON.W.1. For the attention of Mr. Brooks. Dear Sirs, Will you please… | ||
| scan0031 | Summary of a preliminary test on a modified piston crown for the Wraith and Bentley V engines. | ||
| View original record | 1256. To By. from Rm/CTC. c. to Hs. c. to La. c. to La/Jnr. c. to Da/MoS. Rm/CTC.1/JH.17.12.38. PISTONS. The following is a summary of a preliminary test carried out with a modified shape of piston… | ||
| scan0032 | Piston crown design, discussing detonation prevention by referencing a Vauxhall design and a quote from 'Autocar' magazine. | ||
| View original record | -2- RM/CTS.10/JH.16.12.38. remaining area of the piston crown. It is interesting to remember, that the design of cylinder head evolved by Mr. Alex Taub of Vauxhall Motors in conjunction with a special… | ||
| scan0033 | Blueprint diagram of a Vauxhall combustion chamber. | ||
| View original record | VAUXHALL COMBUSTION CHAMBER | ||
| scan0034 | Blueprint of a Standard Bentley Head and Raised Piston Crown. | ||
| View original record | STANDARD BENTLEY HEAD & RAISED PISTON CROWN | ||
| scan0035 | Graph of BHP vs RPM for a 4 1/4 Litre Bentley engine with different piston compression ratios. | ||
| View original record | 4 1/4 LITRE BENTLEY B.V. S.62. PISTONS (COMP. RATIO) OPEN EXHAUST 1) COMP RATIO 6.6 : 1 (.170 CROWN) (.030 GASKET) 2) COMP RATIO 7.0 : 1 (.330 CROWN) (.060 GASKET) 3) COMP RATIO 7.25 : 1 (.400 CROWN)… | ||
| scan0036 | Blueprint graph of a 4 1/4 Litre Bentley engine showing B.HP and Ignition Advance vs R.P.M. for different compression ratios. | ||
| View original record | 4 1/4 LITRE BENTLEY B.V. (COMP. RATIO) S. 63 (1) COMP. RATIO 6.6:1 .170 CROWN .030 GASKET (2) COMP. RATIO 7.0:1 .100 CROWN) .060 GASKET (3) COMP INCR. .030 CROWN ROAD MASTER ADV. TO AVOID DETN. MIN… | ||
| scan0037 | Summary of a paper on the phosphate treatment process, 'Granosealing', for piston rings. | ||
| View original record | C.F.S. File 1256. I.A.E. AUTOMOBILE RESEARCH COMMITTEE Research Department, Great West Road, Brentford, Middx. No. 9225. Class 256, 92. January, 1939. Phosphate Treatment of Piston Rings… | ||
| scan0038 | Research committee report comparing anodising and tin-plating of aluminium alloy pistons. | ||
| View original record | File 1258 I.A.E. AUTOMOBILE RESEARCH COMMITTEE Research Department, Great West Road, Brentford, Middx. No. 9200. Class 255, 90, 42. January, 1939. Anodising Versus Tin-Plating of Aluminium Alloy… | ||
| scan0039 | Letter to The Light Production Co. Ltd. requesting the supply of 14 T.T. Bentley pistons. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.2/MH. 3rd. January 1939. The Light Production Co. Ltd., 63/66, Rochester Row, Westminster, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, With further… | ||
| scan0040 | Order for 14 pistons from The Light Production Co. Ltd. | ||
| View original record | 1256 To Roy. from Rm/CTS. c. G/JWR. c. Roy/AW. Rm/CTS.3/MH.3.1.39. Will you please order from The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W.1., 14 Pistons, Drawing No. P.325… | ||
| scan0041 | Letter to The Light Production Co. Ltd. requesting the supply of various pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTC.16/JH. 21st. January, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, Will you… | ||
| scan0042 | Order to be placed for various types of pistons. | ||
| View original record | 1256 To Roy. c. to G/JWH. c. to Roy/AW. Rm/CTS.17/JH.21.1.39. Will you please send an order to the Light Production Co.Ltd., 60/66 Rochester Row, Westminster.W.1. To cover - 40 pistons - P.452 (.200… | ||
| scan0043 | Seeking authorization to pay an invoice for 144 piston rings, double the quantity of 72 that was originally ordered. | ||
| View original record | 1256 Rm/CTS. G/WFH/CA.24/WP.23.1.39. We confirm our memo of the 23rd. November, reference G/WFH/CA.17/BB, asking if it will be in order for us to accept Wellworthy's invoice for 144 Piston Rings,… | ||
| scan0044 | Over-supply of piston rings from the supplier Wellworthy. | ||
| View original record | 1256 To G/WFH. from Rm/CTS. c. Roy/AW. Rm/CTS.8/MH.27.1.39. In reply to your memo ref. G/WFH/CA.24/WP.23.1.39, concerning the supply of 144 piston rings instead of 72 as ordered from Wellworthy, as we… | ||
| scan0045 | Letter from The Light Production Co. Ltd. acknowledging receipt of communication for an order of Pistons. | ||
| View original record | 1258 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0046 | The compression ratio for the B.V. model, detailing road test results and standardisation considerations. | ||
| View original record | By. from Rm. c. Hs. c. Da. c. Mx. COMPRESSION RATIO FOR B.V. 6.5-1. Our present compression ratio on B.II is As the raised crown piston enabled us to raise the compression ratio on the test beds… | ||
| scan0047 | Road tests of Bentley V pistons with an increased compression ratio to improve engine performance. | ||
| View original record | Rm/FD. from Rm/FD. Rm/FD2/R.9.2.39. BENTLEY V. PISTON TESTS. We have carried out a series of road tests on the Bentley V. with increased compression ratio, our object being to improve the snap… | ||
| scan0048 | Governor advance curve graph for a Delco-Remy distributor modified for B units with 7:1 compression pistons. | ||
| View original record | 7. B. 5 DELCO DISTRIBUTOR CURVE FOR 7:1 COMP. PISTONS GOVERNOR ADVANCE CURVE OF DELCO - REMY DISTRIBUTOR OFF 7 B.V Nº 656 R - X 194 MODIFIED FOR B UNITS DEGREES ADVANCE LIMIT DISTRIBUTOR SPEED R.P.M… | ||
| scan0049 | Letter to Wellworthy Piston Rings Ltd. discussing piston and ring wear, mileage tests, and performance. | ||
| View original record | 1256. Rm10/R. 17th February, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, I was away from the Works yesterday, but I understand they gave Blackith information… | ||
| scan0050 | Letter from a piston ring specialist regarding raised centre pistons and 'L' section rings. | ||
| View original record | 1256 SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143… | ||
| scan0051 | Letter from a piston ring manufacturer discussing the performance of cell-faced and tin-plated rings. | ||
| View original record | WELLWORTHY PISTON RINGS LIMITED CONTINUATION No. 1. Department that they have tried the cell-faced ring, and although in the first trial made the oil consumption went up, modification of the process… | ||
| scan0052 | Internal request to place an official order for compression and scraper rings. | ||
| View original record | 1256 To Roy. c. to G/JWH. Rm/CTS.18/JH.22.2.39. Will you please send an official order to the Light Production Co.Ltd., 60/66 Rochester Row, LONDON. for the following - 80 Compression rings. 40… | ||
| scan0053 | Request to The Light Production Co. Ltd. for tin-plated compression and scraper rings for Bentley production. | ||
| View original record | 1257 EXPERIMENTAL DEPARTMENT. Rm/OTS.12/JH. 22nd. February, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON. Dear Sirs, Will you please supply the following rings tin-plated as soon as… | ||
| scan0054 | Request to send an order for 28 pistons to The Light Production Co. Ltd. | ||
| View original record | 1258. To Roy. c. to G/JWH. c. to Roy/AW. Rm/CTS.1/JH.2.3.39. Will you please send an order to The Light Production Co.Ltd., 60/66 Rochester Row, LONDON., for 28 pistons to our drawings. EW.2121.… | ||
| scan0055 | Letter from the Experimental Department requesting the supply of 28 pistons based on enclosed drawings. | ||
| View original record | 1256. EXPERIMENTAL DEPARTMENT. Rm/CTS.2/JH. 2nd. March, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, Enclosed herewith are two… | ||
| scan0056 | Letter from Wellworthy Piston Rings Ltd. regarding the supply and design of an 'L' shaped piston ring, named 'Everseel'. | ||
| View original record | WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1256. WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 4th March, 1939. JH/CJR. W. A.… | ||
| scan0057 | Letter from Hepworth & Grandage Ltd. regarding the experimental testing of Phormicast piston rings. | ||
| View original record | MANUFACTURERS OF "HEPOLITE" REGD. PRODUCTS ON AIR MINISTRY APPROVED LIST . ADMIRALTY . WAR OFFICE . CROWN AGENTS TELEGRAMS AND CABLES 'RINGS, BRADFORD' CODE BENTLEY'S TELEPHONE 11100 (8 LINES)… | ||
| scan0058 | Letter from The Light Production Co. Ltd. concerning the delivery of Piston EW.2121 and a proposed works visit. | ||
| View original record | - 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0059 | Letter from Hepworth & Grandage Ltd discussing the testing of high tension cast-to-form rings. | ||
| View original record | MANUFACTURERS OF "HEPOLITE" REGD. PRODUCTS ON AIR MINISTRY APPROVED LIST . ADMIRALTY . WAR OFFICE . CROWN AGENTS HEPWORTH & GRANDAGE LTD PISTONS . PISTON RINGS . GUDGEON PINS . LINERS 78 YORK WAY… | ||
| scan0060 | Letter concerning an order for Pistons EW.2121, discussing the need for a new wooden corebox due to design changes and estimating a four-week delivery. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0061 | Letter to The Light Production Co. Ltd. arranging a works visit and referencing piston EW.2121. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.2/MH. 7th. March, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, Very many thanks for your letter… | ||
| scan0062 | Letter from The Light Production Co. Ltd. regarding a meeting, piston EW.2121, and alloy Aerolite 122. | ||
| View original record | TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0063 | Letter from a supplier regarding a change in piston production alloy and seeking a decision on testing. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. Aerolite Pistons for you to test, but subsequent production was changed over to RR.53. We feel you would not wish to test Pistons in an alloy which would not subsequently… | ||
| scan0064 | Letter to J. Howlett of Wellworthy Piston Rings Ltd. concerning the 'L' Section Ring for oil control. | ||
| View original record | 1256 Rm12/R. 9th March, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, Many thanks for your letter. Blackith gave me one of your lists the other day, from which… | ||
| scan0065 | Letter to a supplier requesting exact dimensions and limits for piston grooves before manufacture. | ||
| View original record | 1256 Experimental Dept. RmY/Swdl.3/MH. 10th. March, 1939. Messrs. Hepworth & Grandage Ltd., St. John's Works, Bradford, YORKS. For the attention of Mr. Brearley. Dear Sirs, We thank you for your… | ||
| scan0066 | Letter to The Light Production Co. Ltd. regarding the alloy for piston EW.2121 and confirming a meeting. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.4/MH. 11th. March, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, In reply to your letter of the… | ||
| scan0067 | Letter from Wellworthy Piston Rings Ltd. discussing a potential collaboration on piston manufacturing and associated patents. | ||
| View original record | 1256. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/CJR. 13th March, 1939. W.… | ||
| scan0068 | Letter to W. A. Robotham regarding an experiment and a potential agreement for the manufacture and sale of a piston. | ||
| View original record | W. A. Robotham Esq. 13th March, 1939. When this is done, we then to put the job up as an experiment to people like Leylands, and one or two others, and then enter into an agreement together with… | ||
| scan0069 | Request to scheme the adaptation of a Buick harmonic damper and a drawing for a modified Aerolite piston. | ||
| View original record | 1258 + 1044 To By/Ald. from Rm/Swdl. Rm/Swdl.1/MH.15.3.39. Will you please scheme out the following:- (1) Adapting the Buick harmonic damper element for trial on the B.80 unit without any alteration… | ||
| scan0070 | Letter from Wellworthy Piston Rings Ltd. regarding a high compression piston design. | ||
| View original record | 1256 SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143… | ||
| scan0071 | Diagram with dimensions for a Leyland 3 1/2' Cub petrol engine cylinder head. | ||
| View original record | LEYLAND 3 1/2" CUB PETROL. STROKE 5 1/2" CYLINDER HEAD DETAILS VALVE LIFT = .394". DISHED VALVE HEADS 7:1 6.6 : 1 as drawn 7 : 1 = '100 bumps. 7.6:1 = '225 bumps. 13-3-39. G. Drawing Dimensions:… | ||
| scan0072 | Letter from Hepworth & Grandage apologising for a delay and enclosing a revised sketch with suggested limits for ring grooves. | ||
| View original record | MANUFACTURERS OF "HEPOLITE" PRODUCTS 1263 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY & NOT TO INDIVIDUALS ON AIR MINISTRY APPROVED LIST . ADMIRALTY . WAR OFFICE . CROWN AGENTS TELEGRAMS and… | ||
| scan0073 | Specification drawing for Phormicast piston rings, detailing dimensions, types, and tolerances. | ||
| View original record | LIMITS ON RING GROOVE WIDTHS + .0015" + .0025" 3.11024 .00866 3.11890 3.119 -10 3.14961 .00945 3.15906 3.159 -10 3 RINGS 4.5 m/m RING 79.22 m/m +.000" -.010" DIA. 80.247 m/m +.000" -.010" DIA. S.D.O.… | ||
| scan0074 | Letter to The Light Production Co. Ltd. requesting modifications for the production of piston EW.2121. | ||
| View original record | 1258 EXPERIMENTAL DEPARTMENT. Rm/CTS.1/JH. 21st. March, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, Many thanks for the courtesy… | ||
| scan0075 | Visit to The Light Production Co. Ltd. at Slough concerning piston manufacturing. | ||
| View original record | Copy for files 1258 + 1123 Typed 22.3.39. PISTONS. VISIT TO THE LIGHT PRODUCTION CO. LTD. AT SLOUGH. Further to report on cylinder bore wear Rm/CTS.3/MH.11.3.39.- 1123. Purpose of Visit. As we are… | ||
| scan0076 | Comparison of 'Aerolite' and 'R.R.' piston manufacturing processes, including gudgeon pin fit, machining, ageing, and pressure testing. | ||
| View original record | -2- Gudgeon Pin fit. Aerolite - Pin has clearance of .0002 to .0003. R.R. - Interference fit. Pin inserted initially by immersion of the piston in boiling water. NOTE. The Aerolite method of checking… | ||
| scan0077 | Request to The Light Production Co. Ltd. for the supply of pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/ETC.6/JH. 22nd. March, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, Will you please supply the… | ||
| scan0078 | Order for 20 pistons to be sent to The Light Production Co. Ltd. | ||
| View original record | 1256 To Roy. c.c. to G/JWH. c.c. to Roy/AW. Rm/CTS.7/JH.22.3.39. Will you please send an order to - The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For 20 pistons P.451 (.330 crown)… | ||
| scan0079 | Letter from The Light Production Co. Ltd. regarding Piston EW 2121 and the preparation of a new drawing. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO.LTD.… | ||
| scan0080 | Letter from The Light Production Co. Ltd. regarding the supply of 20 Pistons P.451. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0081 | Letter to The Light Production Co. Ltd. requesting the production of 20 flat crown pistons, part number EW.2115. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.4/MH. The Light Production Co. Ltd., 60/66, Rochester Row, LONDON, S.W.1. 27th. March, 1939. For the attention of Mr. Brooks. Dear Sirs, With further reference to our… | ||
| scan0082 | Internal request to place an order with The Light Production Co. Ltd. for 20 pistons. | ||
| View original record | 236 To Roy. from Rm/CTS. c. Roy/AW. c. G/JWH. Rm/CTS.3/MH.27.3.39. Will you please send an order to The Light Production Co. Ltd., 60/66, Rochester Row, London, S.W.1. to cover 20 pistons Ew.2115, in… | ||
| scan0083 | Order for a set of pistons and the machining of ring grooves. | ||
| View original record | 1256 + spare file To HPS. from Rm/Swdl. c. Rm/CTS. Rm/Swdl.5/MH.27.3.39. B.II NO.4 UNIT (PISTONS). Will you please order a set of pistons from the Repair to EB.2844 and machine the ring grooves in… | ||
| scan0084 | Blueprints for a modification to Aerolite Pistons on a Bentley Chassis. | ||
| View original record | /256. MESSRS. c. Rm. opy/Swdl. By/Ald.1/AW.28.3.39. BENTLEY CHASSIS. AEROLITE PISTON - SECTION 5040. Please receive herewith 2 blue prints of the following:- EXS.1550. Modification to grooves in… | ||
| scan0085 | Letter providing a provisional specification and recommendations for a raised crown piston for a Leyland engine. | ||
| View original record | 1256 Rm9/R. 28th March, 1939. J. Howlett, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Howlett, Herewith is the provisional specification for raised crown piston, together with our… | ||
| scan0086 | Letter to The Light Production Co. Ltd. regarding a specification change for an order of 20 pistons. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.8/MH. 29th. March, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, With reference to… | ||
| scan0087 | Invoice details from Hepworth & Grandage Ltd. for various Phormicast rings for experimental purposes. | ||
| View original record | Rm/Swdl. Files 1236. G/WFH/CA.15/PS. 29.3.39 We have an invoice from Hepworth & Grandage Ltd., dated 21st instant, details of which are shown below. If these Rings may be paid for, will you kindly… | ||
| scan0088 | Authorising payment to Hepworth & Grandage Ltd. for piston rings for an experimental trial. | ||
| View original record | 1256 To Roy/from Rm/Swdl. c. G/JWH. Rm/Swdl.9/MH.30.3.39. Replying to your memo G/WFH/CA.15/PS.29.3.39, payment should be made (£1.0.7d) to Hepworth & Grandage Ltd. for the piston rings you quote… | ||
| scan0089 | Letter from Wellworthy Piston Rings Ltd. discussing pistons for a Leyland lorry and patents on cylinder heads. | ||
| View original record | WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1256 JH/KES 30th March, 1939. W. A.… | ||
| scan0090 | Letter from The Light Production Co. Ltd. regarding piston skirt dimensions and part numbers. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO.LTD.… | ||
| scan0091 | Letter from Wellworthy Piston Rings correcting engine stroke information and requesting piston head specifications. | ||
| View original record | 1256. SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143… | ||
| scan0092 | Letter to Wellworthy Piston Rings Ltd. regarding raised crown pistons and a streamline Bentley. | ||
| View original record | 1256 Rm3/R. 31st March, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, Thank you for your letter. We have not thought of the raised crown piston applied to… | ||
| scan0093 | Letter to Wellworthy Piston Rings Ltd. concerning a bump crown piston design. | ||
| View original record | 1256 Rm3/R. 3rd April, 1939. F. Blackith, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants. Dear Blackith, We suggest that you try the bump crown piston as shown on the sketch we sent you, in… | ||
| scan0094 | Letter from Wellworthy Piston Rings Ltd. acknowledging receipt of a letter while Mr. Howlett is away. | ||
| View original record | 1256 WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS KES 3rd April, 1939. W. A.… | ||
| scan0095 | Letter from The Light Production Co. Ltd. regarding drawing P.461 for piston part EW.2121, discussing elliptical grinding. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0096 | Letter from Wellworthy Piston Rings regarding the casting of bump crown pistons for a Leyland 3 1/2' Cub Engine. | ||
| View original record | 1256 SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2420 BIRMINGHAM 143… | ||
| scan0097 | Letter from Wellworthy Piston Rings Ltd. discussing the re-wording of a patent and a proposed meeting. | ||
| View original record | Specification 1256. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/CJR. 12th… | ||
| scan0098 | Weaknesses of a patent application for a piston design and proposing next steps. | ||
| View original record | For the attention of Mr. Howlett. Re the attached letter from Mr. Wilson, which mentions that his opinion of the present form of application may not pass the Examiners as in the first instance they… | ||
| scan0099 | Wording of a patent application for a piston and cylinder head design. | ||
| View original record | -2- various points should he wish to come to Coventry next Tuesday. In the first paragraph on page 1, mention is made in that the "projection should extend over at least one-sixth of the cross… | ||
| scan0100 | Commentary on patent specifications, discussing piston design and compression ratios. | ||
| View original record | -3- advantage, made clearer. Unfortunately I have not so far received our copy of specification 287,258 or 28,240 dated 1937, so that I cannot see for the moment how these are related to the present… | ||
| scan0101 | Clarification needed for a patent claim on combustion chamber and piston head design. | ||
| View original record | -4- rather vague in that it mentions "walls of the combustion chamber so far as these overlap the cylinder" ; this will require clarifying and then after having sorted out these various points to… | ||
| scan0102 | Letter to The Light Production Co. Ltd. concerning piston drawings, elliptical grinding, and an order for 14 pistons. | ||
| View original record | 1238. Experimental Dept. Rm/CTS.8/MH. 13th. April, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, Many thanks for your letter… | ||
| scan0103 | Letter to Wellworthy Piston Rings Ltd. concerning a provisional patent for a piston and arranging a meeting. | ||
| View original record | 1258 Rm2/R. 13th April, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, [Signature] Many thanks for your letter of the 12th April. I am not an expert on Patent… | ||
| scan0104 | Letter from Wellworthy Piston Rings Ltd. confirming a meeting with W. A. Robotham. | ||
| View original record | 1256. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 15th April, 1939. W. A.… | ||
| scan0105 | Letter to The Light Production Co. Ltd. regarding the future production of pistons for a 4¼ litre Bentley. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.11/JH. 17th. April, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, With reference to the future… | ||
| scan0106 | Letter to Light Production Co. Ltd. confirming tin-plating as a standard feature on all supplied rings. | ||
| View original record | -2- Light Production Co.Ltd. 17th. April, 1939. From Henceforth therefore, tin-plating to be a standard feature on all rings supplied. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||
| scan0107 | Letter from The Light Production Co. Ltd. regarding a discrepancy in drawing references for a piston order. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0108 | Letter from a patent agent concerning patent application No. 37227/38 for an 'Anti-Detonant Combustion Space'. | ||
| View original record | 1256 BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E, A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0109 | Letter to The Light Production Co. Ltd. clarifying details on drawing number EB.4740. | ||
| View original record | 1258. EXPERIMENTAL DEPARTMENT. Rm/CTS.17/JH. 19th. April, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brook. Dear Sirs, In answer to your letter… | ||
| scan0110 | Performance, testing, and benefits of 'Razend Crown' pistons, proposed to be renamed 'Power Dome' pistons. | ||
| View original record | 1256. & Rm's Policy file Ry. from Rm. C. Sg. C. Hs. C. Da. C. RHC. C. RFL. C. Wx. C. Da/Jnr. S. Da/Jod. Rm/1/20.4.38. RAZEND CROWN PISTONS. In future, it is proposed to call these "Power Dome"… | ||
| scan0111 | Solicitor's letter advising on the trademark protection for the term 'POWER-DOME'. | ||
| View original record | CLAREMONT, HAYNES & CO. SOLICITORS COMMISSIONERS FOR OATHS. TELEGRAMS: AORTA,WESTCENT,LONDON. TELEPHONES: HOLBORN 8811 (4 LINES). H. L. STUART. G. H. R. TILDESLEY, LL.B. F. C. CHAMPNEYS. Handwritten… | ||
| scan0112 | Second page of a letter concerning the potential acceptance of the word 'Powerdom'. | ||
| View original record | -2- 20th April 1939 It is possible that the Office might accept Powerdom, but it is impossible to prophesy with a word so near the border line whether they would allow it or not. It would be easy and… | ||
| scan0113 | Letter from The Light Production Co. Ltd. concerning the production and delivery of pistons. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. THE LIGHT PRODUCTION CO. LTD. PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED. ENGINEERS 60/66, ROCHESTER… | ||
| scan0114 | Letter from The Light Production Co. Ltd. discussing modifications to a die, piston ring coatings, and delivery schedules. | ||
| View original record | -2- Messrs. Rolls Royce Ltd., with regard to skirt form apply equally to these, we propose to hold up the grinding unless we hear to the contrary, until you have tested the marking of the P.461… | ||
| scan0115 | Letter from patent agents regarding patent application No. 37227/38 for an 'Anti-Detonant Combustion Space', enclosing a relevant sketch from the Alta Car & Engineering Company. | ||
| View original record | 1256. BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: TELEPHONE:… | ||
| scan0116 | Diagram showing two different combustion chamber shapes. | ||
| View original record | DIAGRAM SHOWING COMBUSTION CHAMBER SHAPE PISTON CROWN CYL. HEAD. CYL. BARREL INLET EXHAUST ALTA CAR & ENG Cº LTD | ||
| scan0117 | Letter from Wellworthy Piston Rings Ltd. regarding the strategy for obtaining a final patent. | ||
| View original record | 1256 WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS MANAGING DIRECTOR'S OFFICE JH/KES 25th April, 1939. W. A.… | ||
| scan0118 | Letter to The Light Production Co. Ltd. regarding the supply and testing of experimental pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CT.1/JR. 25th. April, 1939. The Light Production Co. Ltd., 60/66 Rochester Row, LONDON. S.W.1. For the attention of Mr. Brooks. Dear Sirs, Many thanks for your letter… | ||
| scan0119 | Request to The Light Production Co. Ltd. to prepare 14 pistons with a .360 bump, based on piston design EW.2170. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS11/JH. 26th. April, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr.Brooks. Dear Sirs, With further reference to our… | ||
| scan0120 | Letter to Messrs. Walford & Hardman Brown regarding a pending patent application and the potential impact of a prior user's design. | ||
| View original record | 1256 Rm5/R. 26th April, 1939. Messrs. Walford & Hardman Brown, Roslyn Chambers, 47, Warwick Road, COVENTRY. Dear Sirs, With reference to your letter of the 26th April, we note the raised crown piston… | ||
| scan0121 | Order for 14 pistons to be sent to The Light Production Co. Ltd. | ||
| View original record | 1256 To Roy. c. to G/JWH. c. to Roy/AW. Rm/CTS.15/JH.26.4.39. Will you please send an order to The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. To cover - 14 pistons EW.2170 (.360… | ||
| scan0122 | Letter to The Light Production Co. Ltd. requesting expedited delivery of six split skirt pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.7/JH. 27th. April, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, With reference… | ||
| scan0123 | Letter from The Light Production Co. Ltd. regarding the testing and despatch of P.461 Pistons. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0124 | Letter from patent agents discussing a 'Bentley Piston' patent application and potential prior art from the Alta engine. | ||
| View original record | 1253. BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0125 | Letter discussing the feasibility of obtaining a patent for an engine design in light of similarities with the Alta engine. | ||
| View original record | Sheet 2. Messrs. Rolls-Royce Limited 28th April, 1939 detonant property. If, however, by the use of different clearances and other dimensions from those of the Alta engine you are able to obtain this… | ||
| scan0126 | Testing and fitting of R.R. split skirt pistons to the W.III No.4 Unit. | ||
| View original record | To HPS. Rm/CTS.10/JH.28.4.39. 1256. W.III No.4 Unit. (Piston Tests). We have had a set of R.R. split skirt pistons produced by the Light Production Co. of Slough, who normally supply Aerolite pistons… | ||
| scan0127 | Letter to a supplier discussing piston ring distortion and the 'bedding in' process for engines. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.3/JH. 1st. May, 1939. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Blackith. Dear Sirs, A letter from you to our Mr. Clough has been… | ||
| scan0128 | Letter from The Light Production Co. Ltd. regarding piston specifications and drawings. | ||
| View original record | TELEPHONE: VICTORIA 0671 (6 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0129 | Letter from The Light Production Co. Ltd. regarding the production schedule for Piston EW.2170. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (6 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0130 | Query regarding payment instructions for Piston Rings received from Hepworth & Grandage Ltd. | ||
| View original record | Handwritten: RHW 1256. Mr Walliss Memo sent you re this job Swell [signature] Typed: Mr. Swindell. [struck through] Handwritten/Typed Reference: SROY/AW.17/IB. 11.5.39 Typed Body: Messrs. Hepworth &… | ||
| scan0131 | The placement of official orders for trial piston rings, main bearings, and filters. | ||
| View original record | 1256, 1020 r-1139. To Roy. from Rm/Swdl. c.c. G/JWH. Rm/Swdl.8/MH.11.5.39. Will you please pass an official order to Hepworth & Grandage Ltd. for the following rings we have received for trial. 17… | ||
| scan0132 | Letter from The Light Production Co. Ltd. proposing a design modification for pistons with raised crowns to ease foundry difficulties. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (6 LINES). ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. THE LIGHT PRODUCTION CO. LTD PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED. CHAIRMAN & MANAGING… | ||
| scan0133 | Letter from a consulting engineer enclosing Swinney's British patent for an induction system. | ||
| View original record | W.W. CONSTANTINE, CONSULTING ENGINEER. OUR REF. PJM/JP/ YOUR REF. 111, GROSVENOR ROAD, LONDON, S.W.1. ENG. TEL: VICTORIA 3537-3538. 18th May, 1939. Messrs. Rolls-Royce Limited, DERBY. Attention: Mr.… | ||
| scan0134 | Patent specification for improvements to induction systems of internal combustion engines. | ||
| View original record | PATENT SPECIFICATION Application Date: July 26, 1935. No. 21327/35. 460,377 Complete Specification Left: July 8, 1936. Complete Specification Accepted: Jan. 26, 1937. PROVISIONAL SPECIFICATION… | ||
| scan0135 | Complete specification for improvements in and relating to induction systems of internal combustion engines. | ||
| View original record | 2 460,377 ticular requirements, so as to ensure that they are arranged to operate in a desired out-of-step relation. This relation may be fixed in assem- 5 bling the device or it may be arranged to be… | ||
| scan0136 | Patent specification for an engine induction system featuring concentric passages and movable valve elements. | ||
| View original record | 4 460,377 For instance, with such a construction, through the walls of the outer and inner passages and diametrically through the enlargement on the external surfaces of the inner passage there may be… | ||
| scan0137 | Patent claim for an induction system for internal combustion engines. | ||
| View original record | 6 460,377 ally through the enlargement on the external surfaces of the inner passage there is arranged to extend a spindle on which are mounted an annular member forming the movable valve element for… | ||
| scan0138 | Complete Specification drawing for an engine intake or carburetor system. | ||
| View original record | 460,377 COMPLETE SPECIFICATION 1 SHEET [This Drawing is a reproduction of the Original on a reduced scale.] Fig.1. Fig.2. Fig.3. Fig.4. Fig.5. Fig.6. Numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,… | ||
| scan0139 | Requesting the shot blasting and re-cadmium plating of leaf springs. | ||
| View original record | 1300 To HPS. from Rm/FWK. Rm/FWK.8/JH.19.5.39. LEAF SPRINGS. Will you please shot blast and re-cadmium plate the two top leaves of the springs which we will supply to you. Shot blasting is only… | ||
| scan0140 | Road spring data detailing wheel loads, spring rates, and roll ratings for a vehicle. | ||
| View original record | 13054 SOTO b To Da. from Rm/FWK. c. to Da/Ev. c. to Da/DB. Rm/FWK.9/JH.19.5.39. 3.B.50. Below are the road spring data obtained from the above car :- Front Suspension Coil springs FB.3947/8 900 lb.… | ||
| scan0141 | Table of front and rear wheel suspension movements and spring hysteresis values. | ||
| View original record | -2- Rm/FWK.9/JH.19.3.39 Front Wheel Movements. Bump.limit. Bump cont. Laden. Unladen. Rebound Cont. Rebound limit. N.S. 0 .5" 2.7" 2.9" 3.9" 5.0". O.S. 0 .65" 2.9" 3.1" 4.4 5.5". Rear Wheel Movements.… | ||
| scan0142 | Letter from the Experimental Department regarding issues with piston rings and pistons. | ||
| View original record | c RHE/RP Inspection file 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.4/JH. 20th. May, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, The… | ||
| scan0143 | Letter detailing piston quality issues and the status of new experimental split skirt pistons for engine testing. | ||
| View original record | -2- Rm/CTS.4/JH.26. The Light Production On one piston, there is a small blow hole visible in the bore of the gudgeon pin boss. Also on the same pistons, the webs in the crown are rough finish (slight… | ||
| scan0144 | Letter to The Light Production Co. Ltd. regarding foundry issues and a proposal for a tapered crown piston design. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.3/JH. 20th. May, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks, Dear Sirs, In answer to your letter dated… | ||
| scan0145 | Letter from The Light Production Co. Ltd. regarding the production of pistons and piston rings. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). [Logo: FBI] CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT… | ||
| scan0146 | Letter from a supplier, The Light Production Co. Ltd., responding to a quality complaint about pistons. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. With regard to one of the webs in the crown of this same Piston, we can assure you that the appearance does not indicate porosity. The web is quite sound and the point you… | ||
| scan0147 | Letter from The Light Production Co. Ltd. enclosing drawings for a Bentley Engine Piston Ring and Piston. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO.LTD… | ||
| scan0148 | Order to cover a set of six pistons and rings. | ||
| View original record | 1256 To Roy. c. to G/JWH. c. to Roy/AW. Rm/CTS.4/JH.31.5.39. With reference to your memo. G/WFH/CA.28/NR.24.5.39. The set of six pistons and rings mentioned are part of an order for 14 such pistons… | ||
| scan0149 | Alterations to an Aerolite piston for production purposes. | ||
| View original record | 1256 To By/NS. c. to Da/McStay. Rm/CTS.7/JH.31.5.39. PISTONS. With reference to Aerolite piston shown on EB.4740. We have been working in conjunction with the Light Production Co on the development of… | ||
| scan0150 | Letter to The Light Production Co. Ltd. requesting delivery dates for experimental pistons and rings. | ||
| View original record | 1256. EXPERIMENTAL DEPARTMENT. Rm/CTS.6/JH. 31st. May, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, We are in receipt of your… | ||
| scan0151 | Letter from a patent agent regarding the preparation of a complete specification for patent application 37227/38 (Bentley Piston). | ||
| View original record | 1256. BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J.H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: TELEPHONE:… | ||
| scan0152 | Letter regarding the lodging of an authorisation of agent, this is the second sheet of the document. | ||
| View original record | Sheet 2. Messrs. Rolls-Royce Limited 16th May, 1939 necessary for us to lodge an authorisation of agent, which we shall be pleased to send you on hearing from you. Yours faithfully, Walford & Hardman… | ||
| scan0153 | Letter from chartered patent agents requesting up-to-date drawings for a Bentley piston patent application. | ||
| View original record | BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0154 | Invoice from Light Production Co. Ltd. for pistons, rings and foundry equipment. | ||
| View original record | 1256. Rm/Cts G/WFH/CA28/NR.24.5.39 We have an invoice from the Light Production Co.Ltd. dated 16th inst. details of which are shown below. Apparently these pistons and rings were ordered by letter… | ||
| scan0155 | Letter from The Light Production Co. Ltd. regarding the delivery schedule for experimental pistons. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0156 | Internal request to place an order for specific piston rings from The Light Production Co. Ltd. | ||
| View original record | 1256. To Roy. c.c. to G/JWH. c.c. to Roy/Ms. Rm/CTS.11/JH.7.6.39. Will you please send an order to The Light Production Co.Ltd., 60/66 Rochester Row, London.S.W.1. To cover the following piston rings… | ||
| scan0157 | Letter to a supplier regarding outstanding experimental pistons and ordering spare rings. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.12/JH. 7th. June, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, With reference to your letter… | ||
| scan0158 | Letter correcting an outstanding order for experimental pistons and requesting spare rings. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.12/JH. 7th. June, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, With reference to your letter… | ||
| scan0159 | Performance of raised crown pistons versus high power heads in Bentley engines. | ||
| View original record | 1256 By. from Hm. c. Da. c. Da/Jnr. c. Da/McS. c. Hm/FD. c. Hm/Wym. c. Hm/LMW. Hm2/R.9.6.39. At one time we thought that the raised crown piston was so good that it would make the conventional engine… | ||
| scan0160 | Investigation into the effects of increasing the bump on an Aerolite raised crown piston. | ||
| View original record | By. from Rm/CTS. c. Da. Da/Jnr. Da/McS. Rm/FD. Rm/Wym. Rm/IMW. Rm/CTS.4/R.9.6.39. PISTONS. To investigate the effects of increasing the bump on the Aerolite raised crown piston, as compared with our… | ||
| scan0161 | Piston performance concerning engine detonation and oil temperature. | ||
| View original record | -2- (b) Detonation. Graph No.S.84 shows the power lost at low speeds in avoiding detonation with the various pistons, and the results agree with the power figures shown on Graph No.S.83. Road… | ||
| scan0162 | The effects of raised crown pistons on oil temperature and efficiency. | ||
| View original record | -3- The figures show, that when the compression ratio is raised by means of a raised crown piston, heat to the oil is decreased on account of increased efficiency. As already stated, our main concern… | ||
| scan0163 | Blueprint graph comparing power (BHP) and BMEP against RPM for different piston types and compression ratios with a Bentley camshaft. | ||
| View original record | PISTONS POWER S. 83 MAY. 1939 W. III N°4 (BENTLEY CAMSHAFT) " INDN. SYSTEM) ① R.R. SPLIT SKIRT C/R = 6.0 : 1 ② AEROLITE (FLAT TOP) C/R = 6.0 : 1 ③ " (200 BUMP) C/R = 6.5 : 1 ④ " (330 ") C/R = 7.0 : 1… | ||
| scan0164 | Graph showing ignition advance and detonation characteristics for various piston types and compression ratios using Redline petrol. | ||
| View original record | PISTONS IGNITION ADVANCE & DETONATION MAY 1939 S.84 W III N°4 (BENTLEY CAMSHAFT IDN. SYSTEM) 200 PISTONS 330 PISTONS 470 PISTONS FLAT TOP PISTONS COMP RATIO 6.5:1 7:1 8:1 6:1 ⓐ MIN. ADV. FOR MAX.… | ||
| scan0165 | Graph of heat transfer to oil versus oil inlet temperature for various piston configurations and compression ratios. | ||
| View original record | PISTONS HEAT TO THE OIL S. 85 MAY. 1939 W.III N° 4 (BENTLEY CAMSHAFT INDN. SYSTEM) ① 200 COMP. RATIO = 6.5 : 1 ② 330 " " = 7 : 1 ③ 470 " " = 8 : 1 ④ AEROLITE (FLOP TOP) COMP. RATIO = 6 : 1 ⑤ R.R.… | ||
| scan0166 | Piston compression ratios and ordering instructions based on recent B-V engine tests. | ||
| View original record | 1258 + 436 Les. from Rm. c. By. Rml2/R.12.6.39. During the recent hot weather we have been carrying out a number of tests on the B-V to ascertain whether the freedom from detonation with the 7:1… | ||
| scan0167 | Letter from The Light Production Co. Ltd. regarding the position of outstanding orders for experimental pistons. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0168 | Letter from The Light Production Co. Ltd. clarifying a previously incorrect advice note about pistons. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. assistance to you to know that the 7 Pistons EW. 2121 were incorrectly advised to you in the first place under our advice note S.45823 dated 27.4.39 as EW.2115, but this… | ||
| scan0169 | Changes and specifications for Bentley V production pistons. | ||
| View original record | 1258 2 H 36 To By. c. to Da. c. to Roy/Les. c. to Rm/Swdl. Rm/IMW.1/JH.13.6.39. Bentley V Production Pistons. After further testing it has been decided that we should standardise the 6.5 - 1… | ||
| scan0170 | Letter suggesting the deferral of the Bentley Piston Patent Application 37227/38. | ||
| View original record | 1256 Rm8/R. 16th June, 1939. Messrs. Walford & Hardman Brown, Roslyn Chambers, 47, Warwick Road, C O V E N T R Y. Dear Sirs, With reference to your two letters regarding Bentley Piston Patent… | ||
| scan0171 | Letter from Wellworthy Piston Rings Ltd. chasing up a request for drawings for a patent specification. | ||
| View original record | SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 4762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 8433 119 LEYTONSTONE RD STRATFORD . E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143… | ||
| scan0172 | Acknowledgement letter from patent agents regarding the Bentley Piston patent application. | ||
| View original record | 1256. BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0173 | Cover letter to F. Blackith of Wellworthy Piston Rings Ltd, forwarding a copy of another letter. | ||
| View original record | 1258. Rm4/R. 19th June, 1939. F. Blackith, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants. Dear Blackith, With reference to your letter of the 16th June, herewith a copy of a letter I have sent… | ||
| scan0174 | Letter from a piston ring specialist regarding potential patent issues and prior claims on a special piston design. | ||
| View original record | SERVICE DEPOTS LONDON 89 BLACKFRIARS Rd S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE Rd STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143… | ||
| scan0175 | Letter from Alta Car & Engineering to Wellworthy Piston Rings regarding a patent arrangement. | ||
| View original record | Copy. ALTA CAR & ENGINEERING CO. LTD., Fuller's Way, Kingston Bye-Pass, Surbiton. June 6th, 1939. FB/CJR GT.LV. Messrs. Wellworthy Piston Rings Ltd., Lymington, Hants. Dear Sirs, For the attention of… | ||
| scan0176 | Despatch note for two sets of experimental pistons, P.451 (Aerolite) and P.461 (Split skirt), for Bentley or Wraith models. | ||
| View original record | W/P - Sr. Rm/CTS.10/JH.26.6.39. In accordance with Rm's. instructions we are despatching for your attention, two sets of experimental pistons as follows :- 6 off P.451 (Aerolite). These pistons will… | ||
| scan0177 | Letter from The Light Production Co. Ltd. regarding a query on Bentley Production Piston specifications. | ||
| View original record | 1256. TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0178 | Letter to The Light Production Co. Ltd. discussing piston specifications and ordering additional units. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.17/JH. 29th. June, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. C.H. Brooks. Dear Sirs, Confirming our telephone… | ||
| scan0179 | Request to send an official order for 14 pistons to The Light Production Co. Ltd. | ||
| View original record | 1258. To Les. c. to G/JWH. c. to Les/AW. Rm/CTS.16/JH.29.6.39. Will you please send an official order to - The Light Production Co.Ltd., 60/66 Rochester Row, LONDON. to cover - 14 pistons EW.2170 (360… | ||
| scan0180 | Letter from The Light Production Co. Ltd. confirming receipt of drawings and an order for 14 pistons. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0181 | Supply and stock of pistons for the Paris Depot. | ||
| View original record | 1256 + 1245 To RHC. Rm/CTS.11%JH.6.7.39. Pistons. At varying intervals during the past six months, we have supplied an odd set of pistons to the Paris Depot, to improve the performance of certain… | ||
| scan0182 | To the Paris Depot regarding the production status of experimental raised crown pistons for the Wraith chassis. | ||
| View original record | 1256 + 1245 To Paris Depot. Rm/CTS.12/JH.6.7.39. re Experimental Raised Crown Pistons for Wraith chassis. In answer to your memo. VA.2/ET. dated 4.7.39. these pistons are now on production, and we… | ||
| scan0183 | Letter from The British Piston Ring Co Ltd acknowledging a request to machine 20 castings to drawing ML.1388. | ||
| View original record | 7A. 1256? CABLES A.B.C. 5TH EDITION AND MARCONI BRICO TRADE MARK TELEPHONE 89014/5/6 COVENTRY TELEGRAMS BRICO COVENTRY THE BRITISH PISTON RING CO Ltd HOLBROOK LANE COVENTRY ENGLAND OUR REF Sales JHP.… | ||
| scan0184 | Fitting of experimental raised crown pistons to a Wraith Chassis. | ||
| View original record | 1256 Rm. Sr/VA.3/ET. 20.4.39 Re fitting Raised Crown (Experimental) Pistons to Wraith Chassis (Rm/CTS.10/JH 26.6.39) | ||
| scan0185 | Letter to The Light Production Co. Ltd. confirming an order for 40 modified 'L' section rings. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.2/MH. 28th. July, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, LONDON, S.W.1. For the attention of Mr. C.H.Brooks. Dear Sirs, Confirming your recent visit,… | ||
| scan0186 | Internal request to place an order for 40 piston rings with The Light Production Co. Ltd. | ||
| View original record | 1256 To Les. from Rm/CTS. c.c. G/JWH. Rm/CTS.3/MH.28.7.39. Will you please send an order to:- The Light Production Co. Ltd., 60/66, Rochester Row, LONDON, S.W.1. to cover 40 Piston Rings in accordance… | ||
| scan0187 | Fitting of experimental raised crown pistons to a Wraith chassis to increase compression. | ||
| View original record | 1256 Rm. Sr/VA.8/HB. 9.8.39. re fitting Raised Crown (Experimental) Pistons to Wraith Chassis to increase the Compression file 1245 | ||
| scan0188 | Letter to The Light Production Co. Ltd. regarding the supply and modification of pistons. | ||
| View original record | 1256. Experimental Dept. Rm/CTS.16/MH. 22nd. August, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W.1. For the attention of Mr. Brooks. Dear Sirs, We are despatching for… | ||
| scan0189 | Order for 14 pistons to be sent to The Light Production Co. Ltd. | ||
| View original record | 1256 To Les. from Rm/CTS. c. G/JWH. Rm/CTS.17/MH.22.8.39. Will you please send an order to:- The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W.1. to cover 14 pistons, EW.2115, in… | ||
| scan0190 | Despatch request for 6 pistons to The Light Production Co. Ltd. | ||
| View original record | 1256 To Hq/FC. from Rm/CTS. c. D/BP. Rm/CTS.18/MH.22.8.39. Will you please despatch 6 pistons EW.2115 to:- The Light Production Co. Ltd., Trading Estate, Slough, Bucks. to be marked for the attention… | ||
| scan0191 | Letter to The Light Production Co. Ltd. discussing piston modifications for heat flow, taper grinding, and weight reduction. | ||
| View original record | 1258 EXPERIMENTAL DEPARTMENT. RM/CTS.7/JH. 29th. August, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster Row.S.W.1. For the attention of Mr.S.H.Brooks. Dear Sirs, We are in… | ||
| scan0192 | Letter from chartered patent agents requesting drawings and information for a British Patent Application on a Bentley Piston. | ||
| View original record | 1256 BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0193 | Letter to Messrs. Walford & Hardman Brown regarding a Patent Application, noting further development is doubtful due to the international situation. | ||
| View original record | 1256 Rm.5/MH. 9th. September, 1939. Messrs. Walford & Hardman Brown, Roslyn Chambers, 47, Warwick Road, COVENTRY. Dear Sirs, Thank you for your letter of September 7th. We are not yet in a position to… | ||
| scan0194 | Letter from a patent agent regarding the patent application for a Bentley Piston. | ||
| View original record | 1256. BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0195 | Letter appointing Walford & Hardman Brown as patent agents for a patent application. | ||
| View original record | PATENTS AND DESIGNS ACTS, 1907 to 1938. Sir, MESSRS. WALFORD & HARDMAN BROWN, of Roslyn Chambers, 47, Warwick Road, Coventry, in the County of Warwick, Chartered Patent Agents, are acting as my Agents… | ||
| scan0196 | Letter to Wellworthy Ltd. discussing raised crown pistons, ignition governors, and big end bearing experiments for various engines. | ||
| View original record | 1256 Rm.2/MH. 22nd. September, 1939. J.Howlett, Esq., Messrs. Wellworthy Ltd., Lymington, HANTS. Dear Howlett, I went up to Leyland last night to see them about the raised crown pistons. The position… | ||
| scan0197 | Letter to Messrs. Walford & Hardman Brown regarding an attached copy of a letter to Mr. Blackith. | ||
| View original record | 1256 Rm.12/MH. 28th. September, 1939. Messrs. Walford & Hardman Brown, Roslyn Chambers, 47, Warwick Road, COVENTRY. Dear Sirs, Thank you for your letter of 12th. September. Attached is a copy of a… | ||
| scan0198 | Letter to F. Blackith of Wellworthy Piston Rings Ltd. concerning a piston application and the use of their own patent agents. | ||
| View original record | 1256 - Rm.11/MH. 28th. September, 1939. F.Blackith, Esq., Wellworthy Piston Rings Ltd., Lymington, HANTS. Dear Blackith, In think that in view of the present inter-national situation and the fact that… | ||
| scan0199 | Letter from a chartered patent agent regarding patent application no. 37227/38 for a 'Bentley Piston'. | ||
| View original record | 1247 BRITISH, FOREIGN & COLONIAL PATENTS, TRADE MARKS & DESIGNS WALFORD & HARDMAN BROWN CHARTERED PATENT AGENTS J. H. HARDMAN BROWN, M.A. (OXON.), A.M.I.E.E., A.I.A.E. TELEGRAMS & CABLES: PATENTS,… | ||
| scan0200 | Letter from Wellworthy Piston Rings regarding an unsuccessful Leyland test and a patent application. | ||
| View original record | SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD. E.15 TELEPHONE: MARYLAND 1666-7 BIRMINGHAM 143… | ||
| scan0201 | Letter to The Light Production Co. Ltd. requesting details, a sample, and a drawing of a piston. | ||
| View original record | 1256 Experimental Dept. Rm/CTS. 5/MH. 12th. October, 1939. The Light Production Co. Ltd., Trading Estate. Slough, BUCKS. For the attention of Mr. Brooks. Dear Sirs, We are anxious to obtain details of… | ||
| scan0202 | Letter to The Light Production Co. Ltd. regarding the status of modified taper grinding on an order of 14 pistons. | ||
| View original record | 1256 Rm/CTS.6/JH. 4th. November, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, London.S.W.1. For the attention of Mr.C.H.Brooks. Dear Sirs, Further to our letter ref.… | ||
| scan0203 | Recommending fitting flush top pistons to a 7:1 C/R head to reduce detonation. | ||
| View original record | 1256 To Rm/Wym. from Rm. Rm.3/MH.6.11.39. Before you finish with the 7 : 1 C/R head you should try a set of flush top pistons (if these are not already fitted) as these reduce detonation. Rm. | ||
| scan0204 | Performance graph for a 3 1/2' x 5' six-cylinder petrol engine with high compression pistons. | ||
| View original record | 3 1/2" x 5" SIX CYLINDER PETROL ENGINE 1256 RD 830 ZENITH CARB. 36 WEI 2, 30 CH. 130 M. 110 COMP. 145 E.C. 55 AIR. MANUAL CONTROL IGNITION. HIGH COMPRESSION PISTONS 6.75-1. PLUG BAR 29.85… | ||
| scan0205 | Performance curves for a six-cylinder petrol engine with a Zenith carburetor, comparing standard and high compression pistons. | ||
| View original record | 3 1/2" x SIX CYLINDER PETROL ENGINE 1256 RD 83. ZENITH CARB. 36 WEI 2 30 CH. 130 M. 110 COMP. 145 E.C. 5.5 AIR. MANUAL CONTROL IGNITION. PERFORMANCE CURVES PTS/B.H.P/HR PTS/B.H.P./HR TABLE: STANDARD… | ||
| scan0206 | Graph showing a variable load curve for a 3½' x 5' six-cylinder petrol engine at 1500 RPM. | ||
| View original record | 3½" x 5" SIX CYLINDER PETROL ENGINE ZENITH CARB. 36 WET 2 30 CHOKE 130 MAIN 110 COMP. 145 ECR. 5.5 AIR. MANUAL CONTROL IGNITION 1500 R.P.M. CONSTANT SPEED - VARIABLE LOAD CURVE PTS/B.H.P./HR… | ||
| scan0207 | Technical drawing of a Wellworthy piston, showing dimensions and a proposed further modification. | ||
| View original record | 1256 FURTHER MODIFICATION .502" 3 1/2" DIA 1/8" 1.125" R 3/8" WELLWORTHY PISTON W.P. 316 | ||
| scan0208 | Bench tests of a six-cylinder petrol engine with Wellworthy high compression pistons. | ||
| View original record | 1256. File Pistons general. RESEARCH ENGINEER. TO: CHIEF ENGINEER. Report on tests with Wellworthy High Compression Pistons in the 3.1/2" x 5" Six-cyl.Petrol Engine. A series of bench tests have been… | ||
| scan0209 | Engine performance tests with modified pistons, concluding that no material improvement was achieved. | ||
| View original record | -2- plotted in RD.830 and the constant speed test in RD.829 indicate that the whole sequence of engine test results obtained falls within the range of experimental error. The major difference in… | ||
| scan0210 | Confirming six pistons (EW.2115) were sent to The Light Production Co. for inspection and are not required to be returned. | ||
| View original record | 1256 To G/WFH. Rm/CTS.5/JH.13.11.39. 10.11.39. In reply to your memo. reference G/WFH/EWH.32/ER. The six pistons EW.2115 were sent to The Light Production Co. for their inspection, at the completion… | ||
| scan0211 | Piston ring comparison with increased cylinder lubrication to investigate cylinder bore wear. | ||
| View original record | 1256 To Jnr. c. to Rm. Rm/CFC.11/JH.27.11.39. REPORT ON PISTON RING COMPARISON WITH INCREASED CYLINDER LUBRICATION. Cylinder bore wear being one of our outstanding problems, we decided to run a number… | ||
| scan0212 | Engine testing stages, analyzing oil consumption with different piston rings and lubrication setups. | ||
| View original record | -2- The second stage of the tests were run with high main oil pressure and increased bearing flow. To obtain this a large capacity oil pump was used and a stronger relief valve spring fitted which… | ||
| scan0213 | Crankcase blowby figures, oil consumption, and a comparison of piston rings. | ||
| View original record | -3- RM/CFC.11/JH.27.11.39. Crankcase blowby figures, apparently are of little value in relationship to oil consumption figures. A noteworthy feature of the Hepworth & Grandage ring is the machined… | ||
| scan0214 | Graph comparing oil consumption for different piston and piston ring configurations. | ||
| View original record | PISTON RING COMPARISONS OIL CONSUMPTIONS S 106 TABLE OF CONFIGURATIONS: 1. STD. PISTONS & RINGS. - BLOW-BY 40 CU FT/HR 2. STD. PISTONS & "CELLOTIN" RINGS. - BLOW-BY 40 CU.FT/HR (Conditions for 1 & 2:… | ||
| scan0215 | Letter to The Light Production Co. Ltd. proposing a new test for a modified 'L' section piston ring to improve gas control. | ||
| View original record | 1256 Rm/CTS.1/MH. 4th. December, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, LONDON, S.W.1. For the attention of Mr. Brooks. Dear Sirs, You will remember a short time ago… | ||
| scan0216 | Letter to Messrs. Hepworth & Grandage Ltd. requesting drawings and data for special piston rings. | ||
| View original record | 1256 Rm/CTS.3/JH. 4th. December, 1939. Messrs. Hepworth & Grandage Ltd., St. Johns Works, Bradford, YORKS. For the attention of Mr. Brearly. Dear Sirs, A few months ago, we were supplied with some… | ||
| scan0217 | Letter from The Light Production Co. Ltd. discussing modifications to a piston ring design, specifically trying an 'L' section ring. | ||
| View original record | 1256 File. TELEPHONE: VICTORIA 0671 (5 LINES). ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. CODES: A.B.C. 5TH EDITION. THE LIGHT PRODUCTION CO.… | ||
| scan0218 | Letter from The Light Production Co. Ltd. discussing a modification to a scraper ring and a forthcoming sketch. | ||
| View original record | -2- Messrs. Rolls Royce Ltd. by the scraper ring than a saw cut in a rectangular recess. The suggestion is being drawn up in the form of a sketch to show at the same time the modification to flute… | ||
| scan0219 | Letter to The Light Production Co. Ltd. regarding a modified set-up for oil control rings. | ||
| View original record | 1256 Experimental Dept. Rm.9/MH. 15th. December, 1939. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, LONDON, S.W.1. Dear Sirs, We thank you for your letter reference CHB/DP dated… | ||
| scan0220 | Letter from The Light Production Co. Ltd. regarding a proposed piston ring arrangement. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (6 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0221 | Inquiry to The Light Production Co. Ltd. about the availability of special pistons with a higher crown. | ||
| View original record | 1256 Rm/XTS.6/JH. 20th. December, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. For the attention of Mr. Brooks. Dear Sirs, You have supplied at various intervals odd sets of… | ||
| scan0222 | Request to order 14 modified pistons (P.479) from The Light Production Co. Ltd. | ||
| View original record | 1256 To Les. c. to G/JWH. Rm/CTS.2/JH.21.12.39. Will you please send an order to - The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, S.W.1. To cover - 14 Pistons P.479. It should be… | ||
| scan0223 | Letter to The Light Production Co. Ltd. discussing piston modifications for a trial test. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.1/JH. 21st. December, 1939. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON.S.W.1. For the attention of Mr. Riley. Dear Sirs, We thank you… | ||
| scan0224 | Request to send an order to The Light Production Co. Ltd. for 21 special 'HC' Bentley pistons. | ||
| View original record | 1256 To Les. c. to G/JWH. Rm/CTS.7/JH.20.12. Will you please send an order to The Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. To cover 21 special "HC" Bentley pistons mentioned in our… | ||
| scan0225 | Letter to The Light Production Co. Ltd. enclosing drawings for a Piston and Gudgeon Pin, and inquiring about experimental pistons. | ||
| View original record | File 1256 1st. January, 1940. Rm/CTS.2/BA. The Light Production Co.Ltd. 60/66 Rochester Row. LONDON S.W.1. For the attention of Mr. Riley. Dear Sirs, We are enclosing for your attention the following… | ||
| scan0226 | Letter to The Light Production Co.Ltd. regarding an order and priorities for various special pistons. | ||
| View original record | 1256 Aerolite file Rm/CTS.2/BA. Experimental Dept. 5th.January, 1940. The Light Production Co.Ltd. 60/66 Rochester Row. WESTMINSTER.S.W.1. For the attention of Mr. Riley. Dear Sir, Further to our… | ||
| scan0227 | Page two of a letter requesting approximate delivery dates. | ||
| View original record | - 2 - As mentioned in our last letter, we must know how we stand for approximate dates for delivery. Yours faithfully, for ROLLS-ROYCE LIMITED. | ||
| scan0228 | Letter to The Light Production Co. Ltd. concerning the supply and testing of 75 m/m pistons and 'L' rings. | ||
| View original record | 1256 Experimental Dept. Rm/CTS.2/BA. Your Ref: CHB/DP. 8th. January. 1940. The Light Production Co.Ltd. 60/66 Rochester Row, WESTMINSTER S.W.1. Dear Mr. Brooks, Many thanks for your letter dated 4th… | ||
| scan0229 | Letter to The Light Production Co. Ltd. regarding the specifications and development of pistons and rings. | ||
| View original record | 1256 EXPERIMENTAL DEPT. Rm/CTS.2/BA. 8th. January, 1940. The Light Production Co.Ltd., 60/66bRochester Row, WESTMINSTER.S.W.1. Dear Mr. Brooks, Many thanks for your letter dated 4th. January. We note… | ||
| scan0230 | Letter from the Experimental Department to a supplier regarding specifications for special pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.16/JH. 15th. January, 1940. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON. S.W.1. For the attention of Mr. Riley. Dear Sirs, We thank you… | ||
| scan0231 | Request to send a purchase order to The Light Production Co. Ltd. for 18 pistons. | ||
| View original record | 1256. To Les. c. to G/JWH. Rm/CTS.10/JH.15.1.40. Will you please send an order to - The Light Production Co.ltd., 60/66 Rochester Row, Westminster,S.W.1. to cover :- 18 pistons No.BL.78. In accordance… | ||
| scan0232 | Letter to The Light Production Co. Ltd. regarding piston dimensions, weight reduction, and core boxes. | ||
| View original record | File 1256 Rm/CTS.3/BA. 22nd January, 1940. The Light Production Co.Ltd., 60/66 Rochester Row, WESTMINSTER.S.W.1. For the attention of Mr. Riley, Dear Sirs, With reference to your letter dated… | ||
| scan0233 | Letter to The Light Production Co. Ltd. regarding revised drawings for high crown pistons and placing an interim order. | ||
| View original record | 1256. Rm/CTS.3/JH. 17th. February, 1940. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster.S.W.1. Dear Sirs, Many thanks for your letter ref. WPR/DP. dated 8th. February, enclosing… | ||
| scan0234 | Letter to The Light Production Co. Ltd. discussing the use of a lightened split skirt piston and proposing tests with magnesium. | ||
| View original record | 1256 Rm/CTS.14/JH. 21st. February, 1940. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON.S.W.1. Dear Sirs, ref. WPR/DP. We thank you for your letter dated 16th. February, We… | ||
| scan0235 | Letter offering to cooperate on casting work from dies. | ||
| View original record | -2- 21.2.40. We are at the present time doing considerable casting work in this material and our people concerned could cooperate with you if necessary, even to doing the casting from your dies, if… | ||
| scan0236 | Letter from 'The Motor' magazine requesting test data on piston friction and proposing a collaboration for an article on luxury cars. | ||
| View original record | The Motor PROPRIETORS: TEMPLE PRESS LIMITED. MANAGING DIRECTOR: ROLAND E. DANGERFIELD. DIRECTOR AND GENERAL MANAGER: ROBERT ASHWORTH. LONDON: BOWLING GREEN LANE E.C.I TELEPHONE TERMINUS 3636 (PRIVATE… | ||
| scan0237 | Request to produce detail drawings for three new split skirt pistons with specific design particulars. | ||
| View original record | 1256 Ev. c. Ev/HH. Rm.11/CTS/ML.28.2.40. PISTONS. Will you please produce three new detail drawings for split skirt pistons, to suit the various bores for our range of engine. Particulars of this… | ||
| scan0238 | Letter to The Light Production Co. Ltd. concerning split skirt pistons and placing an order for various pistons and rings. | ||
| View original record | 1256. Experimental Dept., Rm.20/CES/ML. 4.3.40. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster.S.W.1. Dear Sirs, With reference to your letter ref: WPR/DP dated 16th. February,… | ||
| scan0239 | Letter to L. Pomeroy of 'The Motor' magazine comparing Aerolite and split skirt pistons. | ||
| View original record | 1256 Rm.19/ML. 4.3.40. L. Pomeroy, Esq., "The Motor" Bowling Green Lane, London. E.C.1. Dear Pomeroy, Thank you for your letter of the 23rd. February. I must apologize for the delay in answering, but… | ||
| scan0240 | Continued letter regarding the standardisation of piston types for post-war conditions and a meeting about an article. | ||
| View original record | Rm.19/AL. Cont'd. You will wonder why we continue to use two different types of pistons if they give the same result. The answer is that we are going to standardise one type for post-war conditions.… | ||
| scan0241 | Performance comparison chart between Aerolite and E.B. 1299 pistons, showing B.HP and B.M.E.P. against R.P.M. | ||
| View original record | COMPARISON Between Aerolite & E.B. 1299 PISTONS. CYLINDER HEAD WITH LARGE INLET (1.500 DIA) VALVE & SMALL EXHAUST (1.200 DIA) VALVE COMPRESSION RATIO 6.9:1 OPEN EXHAUST UNIT No B.6 (B.H.P) R.P.M.… | ||
| scan0242 | Request to send an order to The Light Production Co. for pistons and rings. | ||
| View original record | 1256. Les. Rm.21/CTS/ML.4.3.40. Will you please send an order to:- The Light Production Co., 60/66 Rochester Row, Westminster.S.W.1. for:- 24 Pistons. complete with gudgeon pins and rings. 144 Rings -… | ||
| scan0243 | Letter to L. Pomeroy of 'The Motor' magazine to rearrange a meeting. | ||
| View original record | 1256 Rm.7/M. 5.3.40. L.Pomeroy, Esq., "The Motor" Bowling Green Lane, London. E.C.1. Dear Pomeroy, Further to my letter of yesterday, I now find that Friday is no good, after all, this week. If you… | ||
| scan0244 | Letter to The Light Production Co. Ltd. requesting blueprints for piston rings due to a re-design. | ||
| View original record | 1256. Experimental Dept. Rm/CTS.9/MH. 8th. March, 1940. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, LONDON, S.W.1. Dear Sirs, As mentioned to you before, we are re-designing our… | ||
| scan0245 | Letter from the Technical Editor of 'The Motor' magazine to W. A. Robotham proposing to postpone a meeting until after Easter. | ||
| View original record | The Motor PROPRIETORS: TEMPLE PRESS LIMITED. MANAGING DIRECTOR: ROLAND E. DANGERFIELD. DIRECTOR AND GENERAL MANAGER: ROBERT ASHWORTH. LONDON: BOWLING GREEN LANE E.C.I TELEPHONE TERMINUS 3636 (PRIVATE… | ||
| scan0246 | Letter to L. Pomeroy, Technical Editor of 'The Motor', confirming arrangements for a visit. | ||
| View original record | 1258? Rm.7/MH. 11th. March, 1940. L. Pomeroy, Esq., Technical Editor, "The Motor", Bowling Green Lane, LONDON, E.C.1. Dear Pomeroy, Wednesday will be satisfactory for your visit. I presume you will be… | ||
| scan0247 | Letter from Laurence Pomeroy, Technical Editor of 'The Motor' magazine, to W.A. Robotham postponing a meeting. | ||
| View original record | The Motor PROPRIETORS: TEMPLE PRESS LIMITED. MANAGING DIRECTOR: ROLAND E. DANGERFIELD. DIRECTOR AND GENERAL MANAGER: ROBERT ASHWORTH. HEAD OFFICE: BOWLING GREEN LANE, LONDON, E.C.1. LONDON: BOWLING… | ||
| scan0248 | Index card for Piston Ring Tests concerning W.3. No. 4. Unit. | ||
| View original record | 1256 HPS | RH. Rm/CTS.1/ML.16.3.40 W.3. No. 4. Unit. Piston Ring Tests see file 636. | ||
| scan0249 | Order for Piston Rings be sent to Messrs. Hepworth & Grandage, Ltd. | ||
| View original record | File 1256 To Roy. from Rm/CTS. Rm/CTS.6/SW.19.3.40. Will you please send an order to Messrs. Hepworth & Grandage, Ltd., BRADFORD :- To cover- 18 off C. 189 ) 18 off C. 190 ) Piston Rings. 18 off C.… | ||
| scan0250 | Request to issue an order to Light Production Co. Ltd. for parts mentioned in an attached advice note. | ||
| View original record | 1256 To LES/FS. Rm/CTS.6/JH.1.4.40. Will you please issue an order to - Light Production Co.Ltd., To cover the parts mentioned in the attached advice note. O/N.52469. Rm/CTS. | ||
| scan0251 | Alteration note changing the piston ring specification from 212A to 4K6 for various models. | ||
| View original record | 130/RE 1256 . 8.4.40. L.H. SIL. PHANTOM. TECT BGO BI. PISTON 5040. E34738 PISTON RING E24737 " " ALTERATION: SPEC'N ALT'D FROM 212A TO 4K6. REASON: 4K6 IS MAKERS SPEC'N. RIPPLET. B80 ALUM. WR.III.… | ||
| scan0252 | Letter to Messrs. Light Production Co, Ltd. regarding revised drawings for split skirt pistons. | ||
| View original record | 1256 file Experimental Department. Rm/CTS.9/JS.22.4.40. 22.4.40. Messrs. Light Production Co, Ltd., 60/66, Rochester Row, WESTMINSTER. Dear Sirs, Regarding split skirt pistons. We send you herewith… | ||
| scan0253 | Request to produce and supply three different parts with specific quantities. | ||
| View original record | 2. Hm/CTS.9/SS.22.4.40. Will you please produce and supply: 16 off RE.784. 24 off RE.785. 24 off RE.786. Yours faithfully, For ROLLS ROYCE LIMITED. | ||
| scan0254 | Letter from the Experimental Department regarding revised drawings and specifications for split skirt pistons. | ||
| View original record | JShaw Experimental Department. RM/CTS.9/JS.22.4.40. 22.4.40. Messrs. Light Production Co. Ltd., 60/66, Rochester Row, WESTMINSTER. Dear Sirs, Regarding split skirt pistons. We send you herewith our… | ||
| scan0255 | Request to produce and supply quantities of specific parts. | ||
| View original record | 2. Rm/CTS.9/JS.22.4.40. Will you please produce and supply: 16 off RE.784. 24 off RE.785. 24 off RE.786. Yours faithfully, for ROLLS ROYCE LIMITED. | ||
| scan0256 | Letter from the Experimental Department regarding revised drawings for split skirt pistons. | ||
| View original record | Experimental Department. Rm/GTS.9/JS.22.4.40. 22.4.40. Messrs. Light Production Co. Ltd., 60/66, Rochester Row, WESTMINSTER. Dear Sirs, Regarding split skirt pistons. We send you herewith our revised… | ||
| scan0257 | Request to produce and supply specific parts identified by reference numbers. | ||
| View original record | 2. Rm/CTS.9/JS.22.4.40. Will you please produce and supply: 16 off RE.784. 24 off RE.785. 24 off RE.786. Yours faithfully, for ROLLS ROYCE LIMITED. | ||
| scan0258 | Request to send a purchase order for different quantities of pistons to The Light Production Co. Ltd. | ||
| View original record | 1256. Roy. from Rm. Rm/CTS.8/JS.22.4.40. Will you please send an order to: The Light Production Co. Ltd., 60/66, Rochester Row, Westminster. to cover: RE.784 Piston 16 off. RE.785 " 12 off. RE.786 "… | ||
| scan0259 | Letter to Light Production Co. Ltd. enclosing previously omitted drawings. | ||
| View original record | 1256 Experimental Department. Rm/CTS.8/JS. 25.4.40. Messrs. Light Production Co. Ltd., 60/66, Rochester Row, WESTMINSTER, S.W.1. Dear Sirs, Further to our last letter, we omitted to enclose the… | ||
| scan0260 | Letter from The Light Production Co. Ltd. chasing missing drawings for Split Skirt Pistons. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0261 | Letter from The Light Production Co. Ltd. regarding the supply of seven oversized Pistons E.B.3365. | ||
| View original record | 1256 TELEPHONE: VICTORIA 0671 (5 LINES). ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. THE LIGHT PRODUCTION CO. LTD. PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED. ENGINEERS CHAIRMAN &… | ||
| scan0262 | Letter from The Light Production Co. Ltd. to the Experimental Department regarding piston design and grinding fixtures. | ||
| View original record | TELEPHONE: VICTORIA 0571 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0263 | Request to place an order for 7 pistons with The Light Production Co. Ltd. | ||
| View original record | 1256 ROY. from Rm/CTS. Rm/CTS.1/JMS.7.5.40. Will you please send an order to: The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W.1. to cover: 7 pistons E.B.3365 (+.015) (2.3… | ||
| scan0264 | Inquiry to Light Production Co. Ltd. regarding the material specifications for gudgeon pins on the Bentley V. | ||
| View original record | 1256 Rem/AJ.20/JH. 8th. May, 1940. The Manager, Light Production Co.Ltd., 60/66 Rochester Row, LONDON.S.W.1. Dear Sirs, I wish to know what material was used for the gudgeon pins on the Bentley V.… | ||
| scan0265 | Letter to The Light Production Co. Ltd. concerning the machining of spigots and the grinding of split skirt pistons. | ||
| View original record | 1256 Experimental Department. Rm/GTS.1/JMS. 9.5.40. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W.1. For the attention of Mr. C. H. Brooks. Dear Sirs, With reference to your… | ||
| scan0266 | Letter to The Light Production Co., Ltd. regarding the special grinding and delivery of split skirt pistons. | ||
| View original record | File copy 1256. Experimental Dept. Rm/CTS.5/JMc.13.5.40. 13th May, 1940. The Light Production Co., Ltd., 60/66 Rochester Row, WESTMINSTER, S.W.1. ATTENTION OF MR. C.H.BROOKS. Dear Sirs, Further to our… | ||
| scan0267 | Confirming arrangements for grinding on experimental chassis pistons. | ||
| View original record | To JRD. from Rm/CTS. File 1286 Rm/CTS.4/JMc.13.5.40. CHASSIS PISTONS. We have written to the Light Production Co. confirming that you will do the necessary grinding on experimental pistons to be… | ||
| scan0268 | Letter to Wellworthy Piston Rings Ltd. regarding Leyland big-end failures, confirming the cause as oil shortage. | ||
| View original record | F. 1256 Experimental Dept. Rm/CTS.2/JMc. 17th May, 1940. Wellworthy Piston Rings Ltd., Lymington, HANTS. ATTENTION OF MR. BLACKITH. Dear Sirs, Further to the Leyland big-end failures, recently… | ||
| scan0269 | Letter from The Light Production Co. Ltd. regarding the grinding and delivery of split skirt pistons. | ||
| View original record | TELEPHONE: VICTORIA 0671 (6 LINES). ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. CODES: A. B. C. 5TH EDITION. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0270 | Letter to The Light Production Co. Ltd. regarding piston order facilities and keeping the order open. | ||
| View original record | 1256 Rm/CTS.16/JMS. 17.7.40. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W.1. For the attention of Mr. C.H.Brooks Dear Mr. Brooks, Further to our letter of May 13th, your… | ||
| scan0271 | Letter from The Light Production Co. Ltd. regarding the delivery schedule for pistons. | ||
| View original record | TELEPHONE: VICTORIA 0671 (6 LINES). 1256 CODES: A. B. C. 5TH EDITION. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD. PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED.… | ||
| scan0272 | The receipt of split skirt chassis pistons from the Light Production Co. for post-war development engines. | ||
| View original record | 1256 To Rm/TF. from Rm/CTS. Rm/CTS.4/ET.16.8.40 Re. CHASSIS PISTONS (Split Skirt). Herewith full details for your records of chassis pistons which will be received from the Light Production Co. for… | ||
| scan0273 | Comparing two types of high power cylinder heads regarding detonation and compression ratio. | ||
| View original record | File 1256 Portons Send COPY. Jnr from Rm c: Hm/Wym c: Rm/CTS. Rm17/ML.9.9.40 HIGH POWER CYLINDER HEADS. ----------------------- The conclusion I have come to, with regard to the two types of cylinder… | ||
| scan0274 | Authorising payment for foundry charges related to pistons. | ||
| View original record | 1256 To Roy. from Rm/CTS. Rm/CTS.4/ET.11.9.40. Re 0/52480. PISTONS RL.784/5/6. Re your memo Roy/AES.1/MF.9.9.40. We agree to the foundry charges mentioned. Will you please issue the necessary… | ||
| scan0275 | Charges for foundry equipment related to pistons and seeking approval. | ||
| View original record | FILE 1256 Clan Founan WB/C Parr. HPS/CP. Roy/AES.1/MF.9.9.40. RE: o/52480. Pistons RE784/5/6. In connection with the above we have received the following charges for Foundry Equipment:- RE 784 - £7.… | ||
| scan0276 | Reference note regarding big end bearings from an experimental car sent to Wellworthy Pistons Ltd. | ||
| View original record | Nº 1256 See also File No 1020 (Bearings) for Rm8/ML25.9.40 to Wellworthy Pistons Ltd re big end bearings taken from one of our Experimental Cars. ******** | ||
| scan0277 | Weight and dimensional discrepancies in rationalised pistons supplied by Aerolite. | ||
| View original record | 1258 To Rm/CTS. from Rm/HH. c. Rm. Rm/HH.3/SW.18.9.40. Rationalised Pistons. We have examined the pistons supplied by Aerolite for this range, and agree that these are heavier than was anticipated. We… | ||
| scan0278 | The despatch of two different pistons to The Light Production Co. Ltd. | ||
| View original record | 1256 To Hd/FC. from Rm/KTS Copy to D/BP. Rm/KTS12/ET.23.10.40. PISTONS Will you please despatch 1 off. EB.1299 Pistons. 1 " RB.785 " to The Light Production Co. Ltd., Mading Estate, SLOUGH. marked for… | ||
| scan0279 | Letter to The Light Production Co. regarding the supply and design of 3.250' and 2.50' bore pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.13/ET. 24th October, 1940. The Light Production Co., 60/66, Rochester Row, Westminster, S.W. 1. Dear Mr. Brooks, We are sending under separate cover two 3.250"… | ||
| scan0280 | Letter to a supplier discussing the development and production of different types of pistons. | ||
| View original record | /1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.14/ET. 5th November, 1940. The Light Production Co. Ltd., 60/66, Rochester Row, Westminster, S.W. 1. Dear Sirs, Confirming the writers conversation with your Mr.… | ||
| scan0281 | Page 2 of a letter requesting feedback on a submitted drawing and permission to proceed with making 36 pistons. | ||
| View original record | Lo Rm/CTS.13/ET.5.11.40. - 2 - We would be glad if you would vet the drawing we have sub- mitted, and offer any criticisms of suggestions for its improvement. This having been done, you could proceed… | ||
| scan0282 | Request for the chemical analysis of 8 cast iron rings, with one undergoing a full analysis and the others checked for consistency. | ||
| View original record | /1258 ↑ To HL/BPS. from Rm/MHR. Rm/MHR.2/ET.9.11.40. Will you please analyse the 8 cast iron rings handed to you on 8.11.40 by Rm/MHR. One of the rings to have a complete analysis , the others to be… | ||
| scan0283 | Reminding the recipient about an order for 3 3/4 bore pistons. | ||
| View original record | 1256 Rm/CTS. from Rm/ML. pistons gen. Rm.2/ML.12.11.40. Rm. has asked me to send you Memo. reminding you that you are going to order 3¾ bore pistons. Thank you! Rm/ML. | ||
| scan0284 | Letter from the Experimental Department requesting sample pistons with specific dimensions and weights. | ||
| View original record | 1253 EXPERIMENTAL DEPARTMENT. 16th November, 1940. Rm/CTS.2/ET. W.A. WILSON, Esq., 78, York Way, LONDON N. 1. Dear Sir, Confirming your recent visit, it was agreed that you should supply sample… | ||
| scan0285 | Request to detail a 3.750' diameter piston for the largest bore version of the six-cylinder range. | ||
| View original record | 1256 To Rm/HH. from Rm/CTS. Rm/CTS 4/ET.18.11.40. PISTONS (Chassis). ------------------- will you please detail a 3.750" diameter piston, for use in the largest bore version of the six cylinder range.… | ||
| scan0286 | Letter from a supplier regarding the production and supply of different sized pistons. | ||
| View original record | TELEPHONE: VICTORIA 0671 (6 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0287 | Report on failed oil pumps from an A.I.D. test, with a warning to the Assembly Shop about part interchangeability. | ||
| View original record | To Sft/LA. from Rm. Copy to Sft. 1265 Rm.1/ET.21.11.40. K8417. (Conversion from VI to XXX). -------------------------------- Attached is a copy of a report from Rm/RH. on the oil pumps that failed in… | ||
| scan0288 | Investigating the fitting of an incorrect idler gear and bracket to engine K8417. | ||
| View original record | To: Rm from RH. K8417. (Conversion from VI to XXX). This Engine was returned from the Works with suspected idler gear for oil pump drive missing. On examination it was found that "an Idler Gear" was… | ||
| scan0289 | Alterations to an exhaust pipe and air scoop, and investigating cracking in air intakes. | ||
| View original record | Handwritten Text: Sft/LA c.Sft Attached from R14 faded A I D I ct so easily is somewhat and props to warm Typed Text: OA.II.S. KA/KH TO: MR. MORTON (LOOK ON OTHER SIDE) Copy for information. We now… | ||
| scan0290 | Comparison photograph of Special Ratio and Standard Ratio gear and bracket assemblies for the Kestrel engine. | ||
| View original record | KESTREL SPECIAL RATIO E. 40212 Bracket E. 40215 Gear KESTREL STANDARD RATIO E. 40142 Bracket E. 40143 Gear | ||
| scan0291 | Letter to The Light Production Co. Ltd. regarding the elliptical grinding and machining of 7 light pistons. | ||
| View original record | 1256 Rm/CTS.1/ET. EXPERIMENTAL DEPARTMENT 25th November, 1940. The Light Production Co. Ltd., 68, Liverpool Road, Trading Estate, S L O U G H, Bucks. Attention Mr. W.P. Riley. Your reference WPR/BKW.… | ||
| scan0292 | Letter from the Experimental Department to The Light Production Co. Ltd. requesting the manufacture of 36 pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.7/ET. 26th November, 1940. The Light Production Co., Ltd., 68, Liverpool Road, Trading Estate, S L O U G H, Bucks. Attention of Mr. Riley. Dear Sirs, With further… | ||
| scan0293 | Order for 36 pistons to be sent to The Light Production Co., with a note to update the correspondence address. | ||
| View original record | 1256 To Roy. from Rm/CTS. Rm/CTS.6/ET.26.11.40. Will you please send an order to:- The Light Production Co., 68, Liverpool Road, Trading Estate, S L O U G H, Bucks. O/N,753. to cover:- 36 Pistons… | ||
| scan0294 | Request to The Light Production Co. Ltd. for a quote and lead time for 26 pistons for a 12-cylinder vee engine. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT Rm/CTS.2/ET 10th December 1940. The Light Production Co. Ltd., Liverpool Road, S L O U G H, Bucks. Dear Sirs, Enclosed herewith, we send you L.452. We would like to know… | ||
| scan0295 | Follow-up letter to The Light Production Co. Ltd. regarding lighter pistons and requesting the material specification for piston rings. | ||
| View original record | EXPERIMENTAL DEPARTMENT 19th December, 1940. 1256 Rm /CTS.4/ET. The Light Production Co. Ltd., 68, Liverpool Road, S L O U G H, Bucks. Attention of Mr. Brooks. Dear Sir, Further to our letter dated… | ||
| scan0296 | Letter to The Light Production Co., Ltd. regarding the urgent supply of pistons for a trial test, suggesting material RR.53. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. Rm/CTS.8/LT. 20th December, 1940. The Light Production Co., Ltd., 68, Liverpool Road, S L O U G H, Bucks. Attention of Mr. Brooks. Dear Sir, Many thanks for your letter… | ||
| scan0297 | Letter to The Light Production Co. regarding the manufacture and grinding of 36 pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. 21st December, 1940. Rm/CTS.3/ET. The Light Production Co., Ltd., 68, Liverpool Road, Trading Estate, S L O U G H, Bucks. Attention of Mr. Riley. Dear Sirs, Thank you for… | ||
| scan0298 | Order to be placed for 40 pistons with The Light Production Co. Ltd. | ||
| View original record | 1256 To Roy. from Rm/CTS. Rm/CTS.3/ET.31.12.40. Will you please issue an order to The Light Production Co. Ltd., 68 Liverpool Road, Trading Estate, S L O U G H, Bucks. to cover 40 pistons to our… | ||
| scan0299 | Letter to Messrs. Hepworth & Grandage Ltd. regarding a composite piston drawing. | ||
| View original record | 1256 Rm/CTS.1/ET. 2nd January, 1941. Messrs. Hepworth & Grandage Ltd., Sentinel House, 46, Southampton Row, L O N D O N W. C. 1. Attention of Mr. W.A. Wilson. Dear Sirs, We thank you for your letter… | ||
| scan0300 | Letter to The Light Production Co. Ltd. authorising the manufacture of 40 LM.101 pistons and discussing procedures. | ||
| View original record | EXPERIMENTAL DEPARTM NT. 28.12.40. 1256 Rm/CTS.1/RH. The Light Production Co., Ltd., 68, Liverpool Road, Trading Estage, SLOUGH. Attention of Mr. Brooks. Dear Sirs, We thank you for your letter dated… | ||
| scan0301 | Letter concerning the delayed delivery of 36 pistons pending the approval of a casting drawing. | ||
| View original record | TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD. PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED.… | ||
| scan0302 | Letter from The Light Production Co. Ltd. regarding a delay in piston production for order number 36316. | ||
| View original record | TELEPHONE: VICTORIA 0671 (8 LINES). CODES: A.B.C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0303 | Letter from a piston manufacturer discussing the inability to find a suitable stock piston and proposing a custom design. | ||
| View original record | MANUFACTURERS OF ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY & NOT TO INDIVIDUALS "HEPOLITE" REGD PRODUCTS ON AIR MINISTRY APPROVED LIST . ADMIRALTY . WAR OFFICE . CROWN AGENTS TELEGRAMS AND… | ||
| scan0304 | Continuation of a letter from Hepworth & Grandage Ltd. regarding a proposed solution. | ||
| View original record | CONTINUATION OF LETTER FROM HEPWORTH & GRANDAGE LTD. H393 We feel that with the failure of the direct comparison scheme the above would be a reasoned and satisfactory solution and would be very glad… | ||
| scan0305 | Letter from Hepworth & Grandage Ltd. regarding a piston drawing and a proposed composite design. | ||
| View original record | MANUFACTURERS OF "HEPOLITE" PRODUCTS ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY & NOT TO INDIVIDUALS ON AIR MINISTRY APPROVED LIST . ADMIRALTY . WAR OFFICE . CROWN AGENTS HEPWORTH & GRANDAGE… | ||
| scan0306 | The parts list for a 3 3/4 inch diameter piston assembly under a rationalised programme. | ||
| View original record | To Rm. from Rm/HH. c. to Rm/CTS. Piston 1256 Rm/HH.5/SW.8.1.41. 3 3/4 Dia. Piston - Sec.5040. The following details have been produced in accordance with the rationalised programme :- RE.1824 Piston.… | ||
| scan0307 | Urgent request to Wellworthy Pistons Ltd. for the machining of 24 special low compression pistons for the Merlin engine. | ||
| View original record | 1256 Rm.4/ET. 9th January, 1941. WELLWORTHY PISTONS Ltd., LYMINGTON, Hants. Attention of Mr. J. HOWLETT. Dear Sirs, We require 24 special low compression pistons for the Merlin. High Duty Alloys have… | ||
| scan0308 | Letter to The Light Production Co. Ltd. concerning the manufacturing process and specifications for lighter split skirt pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. 11th February, 1941. Rm/CTS.3/RH. The Light Production Co., Ltd., 68, Liverpool Road, Trading Estate, SLOUGH. Attention of Mr. Brooke. Dear Sirs, Further to our… | ||
| scan0309 | Letter from The Light Production Co. Ltd. regarding the despatch of seven pistons. | ||
| View original record | TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD.… | ||
| scan0310 | Letter from The British Piston Ring Co Ltd requesting cylinder wear results for previously supplied inserts. | ||
| View original record | C.T.S - Have we any comparative figures of our own inserts here. Rm : 1256 CABLES A.B.C. 5TH EDITION AND MARCONI TELEPHONE 8014/5/6 COVENTRY TELEGRAMS BRICO COVENTRY The BRITISH PISTON RING CO Ltd… | ||
| scan0311 | Letter from High Duty Alloys Ltd. regarding the supply of 18 piston blanks and a related drawing. | ||
| View original record | HIGH DUTY ALLOYS LTD. TELEPHONE: SLOUGH 21201 (PRIVATE BRANCH EXCHANGE) TELEGRAMS: ALLOYS, SLOUGH DIRECTORS: W.C.DEVEREUX, F.R.Ae.S. (Managing) DUNCAN McKELLAR H. G. HERRINGTON S. SANDERS W. E.… | ||
| scan0312 | Letter to The Light Production Co. Ltd. regarding the delivery schedule for special piston LM.101. | ||
| View original record | 1256 1256 Em/CTS.1/ET. 30th January, 1941. The Light Production Co. Ltd., 68, Liverpool Road, Trading Estate, S L O U G H. Attention of Mr. Brooks. Dear Sirs, Further to our special piston LM.101,… | ||
| scan0313 | Letter from Wellworthy Piston Rings Limited apologizing for a delay in supplying 24 special pistons due to issues with forgings. | ||
| View original record | SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5782-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD. E.15 TELEPHONE: MARYLAND 1666-7 BIRMINGHAM 143… | ||
| scan0314 | Letter from Wellworthy Piston Rings Limited acknowledging a previous letter and awaiting further advice. | ||
| View original record | SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD. E.15 TELEPHONE: MARYLAND 1666-7 BIRMINGHAM 143… | ||
| scan0315 | Invoice from Light Production Co. Ltd for pistons and the need for a covering order. | ||
| View original record | 1256 Rm/CTS G/WFH/CA.55/EW. 25.2.41 We have an invoice from the Light Production Co.Ltd dated 17th January on which we are charged 16/6d each for 7 Pistons with Pins less rings No.Z.22,which they say… | ||
| scan0316 | Letter to The British Piston Ring Co. Ltd. explaining the curtailment of experimental work due to the war. | ||
| View original record | Rm.1/ET. 2nd March, 1941. 1256 The British Piston Ring Co. Ltd., Holbrook Lane, COVENTRY, Warwickshire. Attention of Mr. J.H. Pitt. Dear Sirs, We thank you for your letter reference JHP/VM. of last… | ||
| scan0317 | Letter to The Light Production Co. Ltd. regarding the production and delivery of pistons. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. 11th March, 1941. Rm/CTS.10/ET. The Light Production Co. Ltd., 68, Liverpool Road, Trading Estate, S L O U G H, Bucks. Attention of Mr. Brooks. Dear Sirs, A short time… | ||
| scan0318 | The use of 24 special piston blanks for Merlin engine production by Wellworthy Piston Rings Ltd. | ||
| View original record | 1256 To Roy/TWO. from Rn/CTS. Rn/CTS.16/ET.13.3.41. WELLWORTHY PISTON RINGS Ltd. Order No. A.32629. Re your memo Roy/TWO.2/CS.7.3.41, will you please ask Wellworthy to use the 24 piston blanks… | ||
| scan0319 | Letter to Wellworthy Ltd. regarding piston design improvements, referencing drawings LM.449 and LM.101. | ||
| View original record | 1256 EXPERIMENTAL DEPARTMENT. 12th April, 1941. Rm/CTS.1/RH. Messrs. Wellworthy Ltd., Lymington, Hants. Attention of Mr. Woolcott. Dear Sirs, We thank you for your letter ref AJW/ET, dated 3rd April… | ||
| scan0320 | Request to Light Production Company for delivery dates and quantities to Wellworthy, noted as having been phoned. | ||
| View original record | 1256 16.4.41. LIGHT PRODUCTION COMPANY. PLEASE LET US KNOW DELIVERY DATE OF LM.101 TO WELLWORTHY AND QUANTITIES SALT ROYCAR. [Handwritten across document]: PHONED | ||
| scan0321 | Letter concerning the modification and weight reduction of split skirt pistons. | ||
| View original record | TELEPHONE: VICTORIA 0671 (6 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0322 | Letter from Wellworthy Piston Rings Ltd. discussing the production of pistons and carburetors, and recommending pressed components over castings. | ||
| View original record | WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1256 WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 9th May, 1941. W. A.… | ||
| scan0323 | Letter from the Managing Director stating a preference for pressing over die-casting for pistons. | ||
| View original record | JH/KES - 2 - 9th May, 1941. I should be all for the cheaper form of pressing in preference to a die-casting from our experience and we are producing over 10,000 die-cast pistons per week. For a job… | ||
| scan0324 | Letter from High Duty Alloys Ltd. discussing the use of pressed pistons for Merlin engines. | ||
| View original record | HIGH DUTY ALLOYS LTD. TELEPHONE: SLOUGH 21201 (PRIVATE BRANCH EXCHANGE) TELEGRAMS: ALLOYS, SLOUGH. DIRECTORS: W. C. DEVEREUX, F.R.Ae.S., (Managing) DUNCAN McKELLAR H G. HERRINGTON S. SANDERS W. E.… | ||
| scan0325 | Letter discussing a setback with AC.9 connecting rod bearing experiments which resulted in a split bearing. | ||
| View original record | 1256 WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS MANAGING DIRECTOR'S OFFICE JH/KES 26th May, 1941. W. A.… | ||
| scan0326 | Letter from Wellworthy Piston Rings Ltd. discussing potential failures in casting, material or physical properties. | ||
| View original record | JH/KES - 2 - 26th May, 1941. whether there is any failure in casting technique, or material, or whether this is just a question of failure due to lack of physical properties. Yours sincerely, John… | ||
| scan0327 | Letter to Wellworthy Piston Rings requesting three sets of LM. 319 pistons to be machined from standard Merlin blanks. | ||
| View original record | EM/CTS. 3/OH. 1256. 3rd. June, 1941. Messrs. Wellworthy Piston Rings, Lymington, Hants. Dear Sirs, Confirming the writers recent conversation at our works. Will you please supply three further sets of… | ||
| scan0328 | Letter to The Light Production Co. Ltd. regarding a correction to the weight of a 3.5 inch diameter piston, part RR.786. | ||
| View original record | 1256 Rn/CFS.4/JH.3.6.41. 3rd. June, 1941. The Light Production Co. Ltd., 68, Liverpool Road, Trading Estate, Slough. Dear Sirs, re 3.5" diam. Piston RR.786. We apologise for not having replied to your… | ||
| scan0329 | Letter from Wellworthy Piston Rings Ltd. to W. A. Robotham confirming a decision not to purchase a car. | ||
| View original record | WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 1256 JH/KES 30th May, 1941. W. A.… | ||
| scan0330 | Follow-up letter regarding the design and weight reduction of a Bentley piston set. | ||
| View original record | MANUFACTURERS OF "HEPOLITE" REGD PRODUCTS ON AIR MINISTRY APPROVED LIST ADMIRALTY WAR OFFICE CROWN AGENTS HEPWORTH & GRANDAGE LTD PISTONS . PISTON RINGS . GUDGEON PINS . LINERS 4. WESTBURY AVENUE… | ||
| scan0331 | Delay in the supply of piston pressings from H.D.A. | ||
| View original record | To Rm. from Rm/AA. c. to Rm/CTS. 1256 Rm/AA.14/SW.20.6.41. Piston Pressings. Wellworthy tell me that they are waiting on pressings from H.D.A., and suggest three weeks from now as a possible dealing… | ||
| scan0332 | Letter to The Light Production Co. returning six 2.5' bore pistons for final grinding as their own works are unable to complete the operation. | ||
| View original record | Rm/CTS.2/RH. 1256 1st July, 1941. The Light Production Co., Trading Estate, Slough, Bucks. Attention Mr.C.H.Brooks. Dear Mr. Brooks, We are returning for your attention, six 2.5" bore pistons to our… | ||
| scan0333 | Letter concerning the proposal to grind six 2.5 inch diameter pistons to a specific drawing. | ||
| View original record | TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A. B. C. 5TH EDITION. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. THE LIGHT PRODUCTION CO. LTD… | ||
| scan0334 | Gudgeon pin weights, detailing savings from boring out pins and proposals for further lightening. | ||
| View original record | Handwritten top: Rm / CTS - Light pins should be on our endurance engine Handwritten right: Piston file (chassis) To Rm. from Jnr. c. to Rm/CTS. Jnr.3/SW.11.7.41. Gudgeon Pin Weights. There must be a… | ||
| scan0335 | Letter from The Light Production Co. Ltd. to Mr. C.T. Salt awaiting a call. | ||
| View original record | THE LIGHT PRODUCTION CO. LTD. PROPRIETORS OF THE LONDON PISTON RING CO. LTD. CHAIRMAN & MANAGING DIRECTOR: M. V. ROBERTS. DIRECTORS: E. G. DAVIES. WM. THIRTLE. CHB/BKW. 1256 ADDRESS: ~~22, CARLISLE… | ||
| scan0336 | Letter to Light Production Co., Ltd. regarding the production of pistons and rings for a bore engine. | ||
| View original record | Chassis. 'Aerolite' 1256 Experimental Dept. Rm/CTS.3/KC. 8th December, 1941. Light Production Co., Ltd., 68, Liverpool Road, SLOUGH. Attention of Mr. Brookes. Dear Sirs, The writer, in company with… | ||
| scan0337 | Letter to The Light Production Co. Ltd. regarding the finishing of RE.1824 pistons and requesting material specifications. | ||
| View original record | 1250 Rm/CTS.9/LT. 22nd December, 1941. The Light Production Co., Ltd., 68, Liverpool Road, Trading Estate, S L O U G H, Bucks. Attention of Mr. W.P. Riley. Dear Sirs, With reference to your letter… | ||