Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | The wiring and required strength of Fuse No. 6 in the Phantom II model to prevent it from burning out. | ||
| View original record | X2515 PN.5/WTL.2.30. S/W EFC...from PN. [Text struck through] FUSES - "PHANTOM II". Fuse No. 6 is in series with three other fuses which are in parallel, the latter carrying the interior lighting,… | ||
| img002 | Requesting clarification on the fusing current of the supplied tinned-copper fuse-wire. | ||
| View original record | X2515 PN.2/WT12.2.30. S/W. SFC...from PN. Further to my memo PN.5/WTa1.2.30 on fuses, I am informed that the fuse-wire we supply is of tinned-copper, which of course provides some sort of explanation… | ||
| img003 | The design and operating characteristics of fuses for the Phantom II model. | ||
| View original record | X2515 W/S. To FN. from EFC. c. H. EFC1/ADL4.2.30. X.2515. PHANTOM II FUSES. Yours ref. PN5/WT11.2.30 and PN2/WT12.2.30. The feature referred to in your PN5/WT11.2.30 is agreed to be undesirable. It… | ||
| img004 | Page discussing omitted headlamp arrangements on a new accessory distribution board diagram. | ||
| View original record | EFC1/ADL4.2.30. contd. -2- slightly in advance of present production in that upon it there is shewn the accessory distribution board incorporating the suggestions contained in our EFC2/T22.4.29 and… | ||
| img005 | Reference note regarding a Cartridge type field fuse. | ||
| View original record | X.6071. 1.1.31. For previous matter relating to Cartridge type field fuse see X.4629. | ||
| img006 | Test report on a tin-lead cartridge fuse to determine a suitable gauge and volt drop. | ||
| View original record | RR 538 (150 BKS.) (DB 491-8-12-24) MP 306975 X. 6071 ROLLS-ROYCE LTD. INSTRUCTIONS. To: C.E. Date: 6th June 1931 Order No: D.D. 79 Customer's No.: 6071 Tin-lead Cartridge fuses We have tested a… | ||
| img007 | Test on a copper fuse wire, recording current, time, and voltage drop. | ||
| View original record | RR 238 (150 BKS.) (DB 401-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To____________________________________ 19__ Order No._________________ Customer's No.________________ present copper wire… | ||
| img008 | Request to obtain specific gauges of tin lead fuse wire for cartridge type dynamo field fuse tests. | ||
| View original record | .X6071 Roy. from EFC. EFC4/AD7.1.31. X.6071. TIN LEAD WIRE FOR CARTRIDGE TYPE DYNAMO FIELD FUSE TESTS. Will you please obtain a small quantity of each No. 26 S.W.G. and 27 S.W.G. tin lead fuse wire.… | ||
| img009 | Note on the different gauges of marked and unmarked cartridge type field fuses from experimental stock. | ||
| View original record | X6071. 4.2.31. X6071, X.4629. CARTRIDGE TYPE FIELD FUSES (EXPL. STOCK) Four fuses marked on ends contain finer gauge than standard. Six unmarked fuses contain courser gauge than standard. | ||
| img010 | Use of conventional cartridge fuses in standard production. | ||
| View original record | S/W Hs/Wst...from PN. Copy to C. E. By. Bp. Mx. WST *6071. PN.1/WT30.5.33. R.R.Electrical System Fuses. I was interested in your Hs/Wst.1/MA.26.5.33 as I have always felt that there was too much… | ||
| img011 | Proposal to change from open type to cartridge type fuses and reduce the fuse wire gauge. | ||
| View original record | 86071 To Hs/Wst. from E. E.8/HP.31.5.33. c. Wor c.c. PN. Hs. By. EP. Mx. RR. Electrical System Fuses. Replying to Hs/Wst.1/MA.26.5.33, we believe that everybody concerned is in favour of changing over… | ||
| img012 | Problems with electrical system fuses and recommending a change to cartridge-type fuses. | ||
| View original record | x6071. E. From Hs/Wst. c. to By. c. to PN. c. to EP. c. to Mx. Hs/Wst.1/WA.26.5.33. R.R. ELECTRICAL SYSTEM FUSES. Since the trouble we experienced on the green Bentley due to the stop lamp wire… | ||
| img013 | Advantages of cartridge fuses and recommending altering the standard fuse wire gauge. | ||
| View original record | -2- Ha/Wat.1/MA.26.5.33. Cont'd. (a) The fuse wire does not oxidize so readily and therefore lasts longer when used in a heavy current circuit. (b) The fusing current is more constant, and more nearly… | ||
| img014 | Details and definitions for Bakelite and Lucas cartridge type fuses. | ||
| View original record | x6071. 27.5.33. DETAILS OF FUSES OF R.R. BAKELITE TYPE AND CARTRIDGE TYPE AND LUCAS CARTRIDGE TYPE. Definition of fusing current. The fusing current which maintained for 1/2 min. melts the wire.… | ||
| img015 | Comparison of different cartridge fuse types, detailing their performance characteristics and failures. | ||
| View original record | -2- Remarks on cartridge Type (R.R.). The solder melts before the fuse blows 32 S.W.G. in bakelite body R.R. Type. Fusing current in amperes 28 Oxidising current 19 amperes. Percentage increase to… | ||
| img016 | Experimental results on the current carrying capacity of various cables and fuse wires. | ||
| View original record | -3- Cables. 40/36 cable becomes warm when carrying 34 amperes for one minute but insufficient to cause any damage. 23/36 cable becomes rather hot after carrying 34 amperes for one minute. It is in… | ||
| img017 | Test results for wire and cartridge type fuse burnout currents at various gauges. | ||
| View original record | -4- Under the following conditions the wire burnt-out after carrying a current for ½ min. 30 S.W.G. 36.6 amperes. 32 S.W.G. 28.0 " 34 S.W.G. 23.0 " 36 S.W.G. 15.0 " All the above tests were carried… | ||
| img018 | Test report on the fusing currents for various Standard Wire Gauges (S.W.G.). | ||
| View original record | -5- Fusing currents of the various gauges used in the test having a length of 3 in. and free to the air. 30 S.W.G. 14.9 amperes. 32 S.W.G. 12.3 amperes. 34 S.W.G. 9.9 amperes. 36 S.W.G. 6.6 amperes.… | ||
| img019 | Standardisation of cartridge type fuses for the electrical system. | ||
| View original record | Hs/Wst. 86071 EP7/H1.6.33. WST re. R-R. Electrical System Fuses. With reference to your Hs/Wst1/MA.26.5.33. I quite agree to the standardising of the cartridge type fuse. Also, in the meantime, for… | ||
| img020 | Requesting an order for different amperage cartridge fuses from Messrs. Lucas. | ||
| View original record | Roy. From Hs/Wst. 86071 Hs/Wst.8/MA.2.6.33. Will you please order from Messrs. Lucas 1 doz. 25 ampere and ½ doz. 4.5 ampere cartridge type fuses for chassis distribution boards. Order No. 54101.… | ||
| img021 | Experiments and assembly instructions for cartridge type electrical system fuses. | ||
| View original record | 86071. E. From Hs/Wst. c. to By. c. to PN. c. to EP. Hs/Wst.1/MA.5.9.33. R.R. ELECTRICAL SYSTEM FUSES. Further to our Hs/Wst.1/MA.26.5.33.., we have carried out further experiments with cartridge type… | ||
| img022 | Technical report on the fusing and oxidizing currents of various sizes of copper fuse wire. | ||
| View original record | -2- Hs/Wst.1/MA.5.9.33. Cont'd. The glass diameter should not be less than approximately 1/5 the total length of the suspended fuse wire. Unless the fuses are designed liberally there is a tendency… | ||
| img023 | Comparison of R.R. and Lucas cartridge fuse types, detailing fusing currents and disadvantages. | ||
| View original record | -3- Hs/Wst.1/MA.5.9.33. Cont'd. R.R. cartridge type fitted with 30 S.W.G. will blow at 21 amperes and oxidies at 13.4 amperes. R.R. cartridge type fitted with 32 S.W.G. has a carrying capacity of 17.5… | ||
| img024 | Increasing the number of fuses in the chassis electrical system for improved safety. | ||
| View original record | WST To Sg. and Mor. from E. c. Hs. By. Sft. Hs/Wst. By/RD. Chassis Electrical System - Fuses --------------------------------- A meeting of By/RD, Hs/Wst. and E. was held to discuss questions arising… | ||
| img025 | Technical memorandum discussing improvements to the vehicle's fuse box and electrical cutout system. | ||
| View original record | - 2 - or their friends. We know of instances in our own experience where the extinction of both head lamps has caused cars to finish upside down in the ditch, and we are therefore keen to include this… | ||
| img026 | Instructions for changes to fuse boards and circuits for cigar lighters on Phantom, Bentley, and 20/25 chassis. | ||
| View original record | - 3 - E.1/HP.13.6.34. The glass fuses employed should have a paper slip inserted to show whether the fuse is blown or not and to state clearly the working current of each fuse, of which three sizes… | ||
| img027 | Weakness of the current main fuse and considering strip type and bottle type alternatives. | ||
| View original record | W[redacted] (JEH) c.c. Hs/Wst WST 16071. LA10/T19.11.34. RE: MAIN FUSES. I have discussed the above with Mr West and he realizes the weakness of our present type of main fuse. He suggests a strip type… | ||
| img028 | Arrangement of main fuses on Bentley chassis, arguing against changing from ordinary fuse wire. | ||
| View original record | 56071 W/Lillie Hall (JLE.) c. Hs/Wst. BX/Cgh.9/G.21.11.34. RE: MAIN FUSES. With reference to IE.20/C/16.11.34. we do not understand why incorrect fuses have been fitted on Bentley chassis, as the… | ||
| img029 | Letter from L. Weekes (Luton) Limited enquiring about the specifications for fuses requested for testing. | ||
| View original record | CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS Telephone LUTON 278 Telegrams SAFETEE-LUTON Codes A.B.C. 5th & 6th Editions [Logo: SAFETEE REGD.… | ||
| img030 | Letter from L. Weekes (Luton) Ltd. requesting further information in order to make a suitable offer. | ||
| View original record | L. WEEKES (LUTON) LTD. contd. 2. 4th December 1934. Messrs. Rolls-Royce Ltd. DERBY. If you will be good enough to let us have this further information, we will then be able to make you a suitable… | ||
| img031 | Letter to Messrs. L. Weekes (Luton) Limited regarding queries on fuse currents and specifications. | ||
| View original record | Expl. Dept. Hs/Wst.4/MJ. 6th. December, 1934. Messrs. L. Weekes (Luton) Limited, Luton, Beds. Dear Sirs, Replying to your letter of the 4th.inst., reference WF/SB., we are attaching herewith a blue… | ||
| img032 | Sectional drawing of a Bentley distribution board showing the position of an emergency fuse. | ||
| View original record | BENTLEY DISTRIBUTN BOARD: POSITION OF EMERGENCY FUSE. SCALE 1/1. DRAWING APPROXIMATELY TO SCALE SECTION EE .800 +.005/-.005 ins | ||
| img033 | Blueprint for a bakelite partition and fuse assembly. | ||
| View original record | BAKELITE PARTITION FUSE. 3 STRANDS 32 S.W.G TINNED COPPER WIRE. .350 .400 +5 -5 E ROLLS ROYCE, LTD PRINT ROOM DEL'D 6 1936 DERBY. | ||
| img034 | Confirming an arrangement to modify fuse caps on a distribution board. | ||
| View original record | 86071 By. From Hs/Wst. Hs/Wst.14/MA.10.12.34. This is to confirm that we have arranged with By/RD. that in the new scheme of distribution board in which the fuses are all of the cartridge type, he… | ||
| img035 | Order to be placed with Messrs. Weekes Ltd. for one dozen glass fuses. | ||
| View original record | (6071. Roy. From Hs/Wst. Hs/Wst.6/MA.15.1.35. WEEKES FUSES. Will you please place an order with Messrs. Weekes Ltd., for one dozen type 45 glass fuses loaded with 22 S.W.G. tinned copper wire similar… | ||
| img036 | Letter to L. Weekes (Luton) Ltd. discussing the results of fuse testing and requesting a new batch with different specifications. | ||
| View original record | 6091 Hs/Wst.5/MA. 15th January, 1935. Messrs.L.Weekes (Luton),Ltd., Luton, BEDS. Dear Sirs, We beg to refer to your letter of the 15th ultimo undercover of which you sent us a number of fuses for… | ||
| img037 | Letter from L. Weekes (Luton) Ltd. confirming the dispatch of type 45 Glass Fuses and Fuse Links for inspection and testing. | ||
| View original record | CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS. Telephone LUTON 278 Telegrams 'SAFETEE' LUTON Codes A B C 5th & 6th Editions SAFETEE REGD TRADE… | ||
| img038 | Letter from L. Weekes (Luton) Ltd confirming the preparation of an order for 12 glass type fuses. | ||
| View original record | X6071 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS. Telephone LUTON 278 Telegrams "SAFETEE," LUTON Codes A·B·C· 5th & 6th Editions London… | ||
| img039 | Experimental department report on tests to determine the best type of main fuse for cars to avoid 'black outs'. | ||
| View original record | 86071 EXPERIMENTAL DEPARTMENT REPORT. REFERENCE:- Hs/Wst.1/MA.18.1.35. Subject of Report:- Tests to determine the best type of main fuse for R.R. and Bentley cars to avoid "black outs". General… | ||
| img040 | Investigation into main fuse failures on Bentley chassis and a recommendation for a new glass cartridge type fuse. | ||
| View original record | Ha/Wst.1/MA.18.1.35. MAIN FUSE ON R.R. AND BENTLEY CHASSIS. In view of one or two alarming cases of complete "black outs" on Bentley cars due to the failure of the main fuse we instituted an… | ||
| img041 | Fuse testing, comparing fuse links with cartridge types and recommending the adoption of a tinned copper glass cartridge fuse. | ||
| View original record | -2- Hs/Mat.1/MA.18.1.35. Cont'd. (d) That although, as stated in the following test results, the fuse links were electrically better they would still be subject to maladjustment and damage on assembly… | ||
| img042 | The testing of different types of fuses, detailing fusing currents and material performance. | ||
| View original record | -3- Ha/Tst.1/WA.18.1.35. Cont'd. (b) The fusing current was taken to be that current, which would melt the fuse within 30 secs., after being raised quickly to that value. In the case of the links,… | ||
| img043 | Comparison of the electrical and mechanical properties of cartridge fuses versus other link types. | ||
| View original record | -4- Hs/Wat.1/WA.18.1.35. Cont'd. With the cartridge type, care would have to be taken to keep the wire central in the glass tube, and fairly straight, otherwise there would be danger of the valve of… | ||
| img044 | Requesting the fitment of a modified main fuse to several chassis and ordering the necessary parts. | ||
| View original record | 86071 RHC. From Hs/Wst. Hs/Wst.5/MA.30.1.35. MAIN FUSES ON CHASSIS. Will you please arrange to fit to chassis 1.B.IV., 3.B.IV., 5.B.IV., Spectre 1, 18.G.IV., 19.G.IV., 20.G.IV., and 21.G.IV a modified… | ||
| img045 | Blueprint for a pillar to adapt a cartridge-type main fuse to a standard disk board. | ||
| View original record | ROLLS-ROYCE, LTD JAN 31 1935 DERBY PILLAR TO ADAPT CARTRIDGE-TYPE MAIN FUSE TO STD DISK BOARD MATL HDB SCALE 3/1 FHT 30-1-35 EL90 .323 .500 -5 .280 -2 DRILL .137 TAP 3BA 34.8 TPI | ||
| img046 | Internal order request for replacement switchboard fuses and switches due to an overload. | ||
| View original record | EJJ. From Hs/Wst. Y6071. Hs/Wst.4/MA.13.2.35. SWITCHBOARD FUSES. Will you please order for us for replacement (due to overload) on our D.C. switchboard the following Kantark complete fuse units :- 4 -… | ||
| img047 | Instruction on how fuses should be loaded with a specific gauge of tinned copper wire. | ||
| View original record | 76071 By. From Hs/Wst. c. to Sft./Mr.Brock. Hs/Wst.5/MA.21.2.35. FUSES. Will you please ensure that all fuses with the exception of the dynamo field fuse and the main emergency fuse are loaded with… | ||
| img048 | Standard instruction regarding the loading of all fuses, except the field main emergency fuse, with 30 S.W.G. wire. | ||
| View original record | Hs/Wst. WST rb071 BY/RD5/W.22.2.35. FUSES. With reference to your request that all fuses, with the exception of the field main emergency fuse, should be loaded with 30 S.W.G. wire, will you please… | ||
| img049 | Telephone communication regarding battery fluctuation issues on chassis 72-SK for a client named Myers. | ||
| View original record | N-W Hs/Wst. WST 860) Br2/S. 27.2.35 re Chassis 72-SK - Myers ------------------- With reference to your telephonic communication of the 26th inst., Mr. Cook (the Agent) telephoned us on Monday to say… | ||
| img050 | Experimental department report on tests of a new fuse board with glass cartridge fuses. | ||
| View original record | 86071. EXPERIMENTAL DEPARTMENT REPORT. REFERENCE:- Ha/Wat.2/MA.27.3.35. Subject of Report:- Tests on new R.R. fuse board fitted universally with glass catridge type fuses. General Conclusions :-… | ||
| img051 | Tests and recommendations for a distribution fuse board with glass cartridge type fuses, specifically for the Spectre model. | ||
| View original record | R.R. DISTRIBUTION FUSE BOARD WITH GLASS CARTRIDGE TYPE FUSES. Tests have been carried out on the new fuse board with glass fuses to measure temperature rise and electrical losses. To ascertain the… | ||
| img052 | Request to obtain 'Pol' permanent fuses from a supplier in London. | ||
| View original record | Roy. From Hs/Wst. 6071 Hs/Wst.8/MA.24.10.35. Re. "Pol" Fuses. Will you please obtain for us from S.Guiterman & Co., 35 and 36 Aldermanbury, London E.C.2:- 6 25 ampere "Pol" permanent fuses. Order… | ||
| img053 | Request to order six small 2 amp cartridge type fuses from Messrs. Weekes Co.Ltd. | ||
| View original record | 86071 Roy. From Hs/Wst. Hs/Wst.1/MA.27.11.35. Will you please order from Messrs. Weekes Co.Ltd., six small cartridge type fuses with a 2 amp. fuse rating. Order No.54101. Hs/Wst. | ||
| img054 | Directive to fit separate headlamp fuses on specific Bentley car models. | ||
| View original record | To RHC. 86071 HS/CAP.10/JH.10.3.36. Separate Headlamp Fuses. To prevent simultaneous failure of both headlamps on the Bentley car, it has been decided that the Ph.III type of distribution board, in… | ||
| img055 | Letter from S. Guiterman & Co. Ltd. regarding the supply of Pol Mercury Fuses. | ||
| View original record | TELEPHONE: METROPOLITAN 8074-5 LINES FOREIGN TELEGRAMS: 'GUITERMAN, LONDON.' INLAND TELEGRAMS: 'GUITERMAN, PHONE, LONDON' S. GUITERMAN & CO. LTD ESTABLISHED 1876 35 & 36, Aldermanbury, London. E.C.2.… | ||
| img056 | Advertisement for the 'POL' permanent, self-resetting mercury fuse. | ||
| View original record | THE FUSE WITHOUT COMPARE -YOU NEVER NEED A SPARE! Fit a “ POL ” permanent mercury fuse and you will never be stranded with a burnt-out fuse. A column of mercury takes the place of the usual fuse wire… | ||
| img057 | Investigation of faulty fuses and a shorting foot switch. | ||
| View original record | BY/RD c. Rm/GWH. c. E. c. Rm. ---------- ELECTRICAL SYSTEM - RE: FUSES. ---------- We should at once break a number of fuses to see whether we can find faulty samples which have not been used to… | ||
| img058 | Issues with glass-enclosed fuses and a foot-switch for dimming. | ||
| View original record | Rm. c. Rm/CWH. c. BY/RD. WST 86071. BY.9/G.5.11.36. ELECTRICAL SYSTEM - RE: FUSES ENCLOSED IN GLASS TUBES. Referring to Rm.16/JH.29.10.36. and Mr. Hancock's complaint to same on the above subject, we… | ||
| img059 | Order for one dozen Electric Clock fuses. | ||
| View original record | To Roy. from Rm/Wst. c. to G/JWH. 86071. Rm/Wst.3/AP.12.11.36. Will you please order for us from Messrs Smith and Sons, Cricklewood, to our order number 54317:- 1 Dozen Electric Clock fuses. Rm/Wst. | ||
| img060 | Issue with Phantom III fuses and a request to add a preventative feature to the moulding. | ||
| View original record | 6071 By/RD. C.c. Rm/Wst. E.7/HP.11.2.37. Phantom III Fuses. I am attaching herewith a copy of a letter dated 4th inst. from Mr Sclater-Booth, from which you will see that he has succeeded in wedging a… | ||
| img061 | Letter from Hooper & Co (Coachbuilders) criticising the fuse and fuse box design on the Phantom III chassis. | ||
| View original record | COPY. Hooper & Co (Coachbuilders) Ltd. 54, St. James's Street, S.W.1. February 4th 1937. W.Cowen Esq., Rolls-Royce Ltd., 14/15 Conduit Street, W.1. Dear Mr Cowen, Further to our conversation today, I… | ||
| img062 | Suggestion for a modification to a bakelite casing to make fuse replacement easier and prevent recurrence of a problem. | ||
| View original record | (sheet 2) If the bakelite casing could be moulded in such a way that it was impossible to fit a fuse in between a set of fusing clips, it would make for these fuses being very much easier to replace… | ||
| img063 | Inaccessibility of the distribution board and problems with the cartridge type fuse on the Phantom III chassis. | ||
| View original record | 6071 To Cg: Re: Ps: Ex: PHG. T/Lia. Ex. Rm/Grys. BY.1/B. 20.4.37. FUSES AND DISTRIBUTION BOARDS. Referring to the complaint that the cartridge type fuse on the Phantom III Chassis, can be placed… | ||
| img064 | Report regarding an accessories fuse blowing when the traffic indicator is used on a 25.0.6. Chassis. | ||
| View original record | HPS. from Wst/RC. c. Wst/GAP. 6079 Wst/RC.23/AP.22.4.37 Re. 25.0.6. Chassis. It has been reported that the accessories fuse on the above car blows when the traffic indicator is used. Will you please… | ||
| img065 | Letter to L. Weekes (Luton) Ltd. requesting a meeting to discuss modifications to a fuse design. | ||
| View original record | 6071 Rm/Wst:9/AP. 23rd April 1937 Messrs L.Weekes (Luton) Ltd., LUTON Dear Sirs, In connection with the design of fuse which you are manufacturing for us, we should very much like the opportunity of… | ||
| img066 | Letter from L. Weekes (Luton) Limited confirming a meeting appointment for Mr. C. H. Dryden. | ||
| View original record | CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS. Handwritten: 6071 L. Weekes (Luton) Limited Incorporating L. Weekes, Ltd: The British Electric… | ||
| img067 | Letter from L. Weekes (Luton) Limited discussing suggestions and recommendations for 30 amperes fuses. | ||
| View original record | 6071 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS. Telephone LUTON 278 Telegrams "SAFETEE" LUTON Codes A·B·C·5th & 6th Editions SAFETEE RECD.… | ||
| img068 | Letter from L. Weekes (Luton) Ltd. regarding the supply and testing of various types of fuses. | ||
| View original record | L. WEEKES (LUTON) LTD. contd. 2. 3rd May 1937. Messrs. Rolls-Royce Limited. Derby. c) We are putting in hand 3 dozen fibre barrel fuses to submit to you for test. These would be our indicating type,… | ||
| img069 | Letter to L.Weekes (Luton) Ltd. discussing the design and supply of fuses. | ||
| View original record | 6071. May 4th.1937 Rm/Wst.8/AP. Messrs L.Weekes (Luton) Ltd., LUTON, Beds For the attention of Mr.C.H.Dryden. Dear Sirs, We thank you for your letter of the 3rd instant reference WF/SB. You will by… | ||
| img070 | Letter from L. Weekes (Luton) Ltd. concerning the provision of 18 experimental 30 ampere fuses. | ||
| View original record | 6071 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS. Telephone LUTON 278 Telegrams "SAFETEE" LUTON Codes A.B.C. 5th & 6th Editions SAFETEE REGD.… | ||
| img071 | Proposed improvements to electrical system fuses with a supplier. | ||
| View original record | 6071 To By. from Rm/Wst. c. RHC. Rm/Wst.4/AP.1.5.37 ELECTRICAL SYSTEM FUSES Mr.Dryden, director of Messrs Weekes who supply our fuses, visited us yesterday afternoon to discuss improvements to fuses.… | ||
| img072 | Letter to a supplier regarding an unsuccessful experimental scheme for producing a tight coil in fuse wire. | ||
| View original record | c. Rm/Wst. ------------ 6071 4th. May 1937. BY.1/C. ------------ Messrs. L. Weekes (Luton) Limited, Luton, Beds. For the attention of Mr. Dryden. Dear Sirs, With reference to your visit to these Works… | ||
| img073 | Comparing different types of electrical system fuses and their fastening methods. | ||
| View original record | To Rm. From RHC. c. to Wst. c. to By. WST 6071 RHC/JS.6/MJ.13.5.37. ELECTRICAL SYSTEM FUSES. Rm/Wst.4/AP.1.5.37. With regard to the proposed method of fastening fuse wire in the glass fuses as… | ||
| img074 | Design and cost of electrical system fuses. | ||
| View original record | To Rm. From RHC. c. to Wst. c. to Hy. 6071 RHC/JS.6/MJ.13.5.37. ELECTRICAL SYSTEM FUSES. Rm/Wst.4/AP.1.5.37. With regard to the proposed method of fastening fuse wire in the glass fuses as supplied by… | ||
| img075 | Requesting the manufacture and testing of three fuses for all chassis models. | ||
| View original record | 6071. To HPO c. Rm/Wst. Cr. Ev. BY/RD.4/B.1.6.37 FUSES - ALL CHASSIS. RR.Sch.1082. Will you please have three fuses made up to the details attached herewith, and will Rm/Wst., please arrange to get… | ||
| img076 | Letter to Mr. Wyborn postponing a visit due to a company holiday. | ||
| View original record | 6071. Wst/RC.1/JH. 16th July, 1937. Mr.Wyborn, Hillside, Woodthorpe Drive, Nottingham. Dear Sirs, With reference to your letter of the 14th inst. we shall be on holiday from the 16th inst. until the… | ||
| img077 | Requesting the production of two sample fuse units for inspection and testing. | ||
| View original record | 6071. To HPS. Rm/Wst.18/JH.6.7.37. re R.R.Sch.1082. Regarding the above fuse unit which we temporarily held up, will you now please instruct for two sample fuse units to be made up for our inspection… | ||
| img078 | Internal memorandum regarding a new design of open-type fuses, instructing for production and testing. | ||
| View original record | 6071, To Rm/RC. BY/RD.3/B.1.9.37. Open Type Fuses - New Design. We are instructed to get this new design of fuse on production immediately. Samples for test will be available on Friday Sept. 3rd. Will… | ||
| img079 | Bench tests of open type fuses, comparing their disadvantages with those of cartridge type fuses. | ||
| View original record | To By. from Rm/RC. c. By/RD. c. DE. Rm/RC.4/MH.15.9.37. 6071. Re Distribution Board Open Type Fuses To R.R.Sch.1082. We have completed bench tests on the above type fuses. In testing these fuses it is… | ||
| img080 | The design and testing of a new open type fuse compared to the cartridge type. | ||
| View original record | 2. but they appear to be incapable of action. The new type of open fuse now under consideration, automatically disposes of the troubles arising from the cartridge type. It therefore, only remains to… | ||
| img081 | Recommending the deletion of the dynamo armature fuse. | ||
| View original record | Mr. [struck out] c to Hs. c to Mr. c to Rm. [Handwritten note]: Childs - This seems sound. Pin 6041 Hd/SB20/HR.5.11.37. re DYNAMO ARMATURE FUSE. ----------------------- We wish to point out that our… | ||
| img082 | Failure modes of a regulator concerning the armature fuse and second stage contacts. | ||
| View original record | To Hs. from Rm/RC. c. HD/SB. c. MX. c. By. 6142 Rm/RC.6/MH.18.11.37. RE ARMATURE FUSE. Referring to By/RD.1/B.15.11.37 we should like to point out that without an armature fuse overheating due to… | ||
| img083 | Potential removal of dynamo armature fuses, weighing fault rates against fire risks. | ||
| View original record | To: Hd/CH. S. Rm. CHILDS 6142 BY/RD.1/B.15.11.37. DYNAMO ARMATURE FUSES. We attach hereto a chart showing the type of fault and the effects with and without the fuse. Since the Repair Department's… | ||
| img084 | Fault diagnosis table for a C.A.V. regulator, detailing the effects with and without an armature fuse. | ||
| View original record | THE EFFECT OF THE ARMATURE FUSE - C.A.V. REGULATOR. Table columns are: Type of Fault, Effect with an Armature Fuse, Effect without an Armature Fuse. Failure of Second Stage of Regulator: [With Fuse]… | ||
| img085 | Arguing for the deletion of the dynamo armature fuse from various chassis. | ||
| View original record | BY. c to Hs. c to Mx. c to Rm. [Handwritten]: WST [Handwritten]: 6071 [Handwritten]: your comments please Hd/SB20/HR.5.11.37. re DYNAMO ARMATURE FUSE. --------------------- [Handwritten]: Hs We wish… | ||
| img086 | Adoption of a Lucas single contact regulator over the C.A.V. type for better performance and cost reduction. | ||
| View original record | Rm Childs See me Rm Hs. E/Wst.2/R.M.9.11.37. Please note H With reference to Hd/SB.20/HR.5.11.37, it would be a mistake to delete the armature fuse from our existing installation where the C.A.V.… | ||
| img087 | Instruction to despatch 12 fuses to be re-loaded by Messrs. L. Weekes Ltd. | ||
| View original record | G/Et. c.c. to D/Br. c.c. to Rm/Mr.Child. ------------------ 6071 ROY/FS.9. 18th Nov. 1937. ----------------------------- Please despatch carriage paid to:- Messrs. L. Weekes Ltd., Luton. 12 Fuses… | ||
| img088 | New position of the distribution board with open type fuses for the Wraith and Phantom models. | ||
| View original record | To HPS. from Rm/RC. c. RC/CAP. .6071. Rm/RC.14/MH.15.12.37. DISTRIBUTION BOARD WITH OPEN TYPE FUSES. Details of the distribution board with the open type fuses and the new position for it on the off… | ||
| img089 | The Wraith fuse box position and a new diagram of connections. | ||
| View original record | Hs. from Rm. c.c. By/RD. c.c. Rm/RC. c.c. Rm/Wym. 6071. Rml1/R.30.12.37. WRAITH FUSE BOX POSITION & DIAGRAM OF CONNECTIONS. A scheme has been completed No.DCD.85 for moving the fuse box to the… | ||
| img090 | Requesting the fitting of open type fuses and holders to a 6.B.IV chassis. | ||
| View original record | To HPS. c. to RC/CAP. 6071, fuse Rm/RC.9/JH.14.1.38. re 6.B.IV Chassis. The open type fuse and holders are now obtainable and in order to gain experience with this type we should like these fitted to… | ||
| img091 | Depot sheet investigating issues with the armature fuse, identifying flimsy clips as the cause of non-charging dynamos. | ||
| View original record | CHILDS 6071 To By... Rm/GWH. c. to By/RD. c. to Rm. Rm/GWH.11/N.24.1.38. Depot Sheet Hd.371. Armature Fuse. The supplying of the new armature fuse will not, from my investigation, be an all round… | ||
| img092 | The increased capacity of open-type fuses. | ||
| View original record | 6071. To By/from Rm/RC. c. to By/RD. Rm/RC.6/JH.27.1.38. OPEN-TYPE FUSES. The adoption of a higher-output regulator will have the effect of increasing the current that is carried by the armature fuse… | ||
| img093 | The fitting of new open type fuses to specific cars. | ||
| View original record | To HPS. 6071 Rm/RC.8/JH.28.1.38. re Open Type Fuses. Will you please arrange for the new open type fuses to be fitted to the following cars :- 24.G.VI. 25.G.VI. 27.G.VI. B.56.BN. Also Lp's. car 4.B.IV… | ||
| img094 | Test report and recommendation for an Open Type Armature Fuse for Phantom III. | ||
| View original record | 6071 To By. c. to Hs. c. to Da. c. to Mx. Rm/RC.2/JH.22.2.38. re Open Type Armature Fuse to D.76172.C. for Ph.III. We have carried out tests on the above type fuse and find same quite satisfactory. In… | ||
| img095 | Recommending the fitment of an Open Type Armature Fuse after satisfactory road testing. | ||
| View original record | RC 6071, To By. c. to Hs. c. to Da. c. to Mx. Rm/RC.2/JH.22.2.38. re Open Type Armature Fuse to D.76172.G. for Ph.III. We have carried out tests on the above type fuse and find same quite… | ||
| img096 | Overheating of 'Open' type fuses and outlining tests on different clip and carrier combinations. | ||
| View original record | 6071. To By. c. to Da. c. to By/RD. c. to Mx. Rm/RC.7/JH.18.10.38. re Heating of Open Type Fuses. It has been observed that there is a tendency for the armature fuse, of the 'Open' type, to overheat.… | ||
| img097 | Test report comparing the temperature performance of different fuse types and carriers over time. | ||
| View original record | -2- Time current was on Temperature at junction of carrier and clip of fuse. 1 2 3 4 5 mins. 56°C. 74°C 124°C 85°C 10 mins. 69°C 106°C 120°C 97°C 15 mins. 76°C 96°C 140°C 91°C. It will be seen that… | ||
| img098 | Analysis and recommendations for improving fuse holder and clip design based on heating and handling tests. | ||
| View original record | -3- Rm/RC.7/JH.18.10.38. higher rate of cooling of the circular section, in the middle portion. The test proved that less heat is produced with the larger contact area of the flat end, but much more… | ||
| img099 | Requesting the fitting of standard steel fuse clips for the armature fuse on a car. | ||
| View original record | 6071. To HPS. c. to Rm/Wym. c. to BC/CAP. Rm/RC.5/JH.1.11.38. re 25.G.VI. Will you please arrange for the standard steel fuse clips to be fitted for the armature fuse on the above car. Rm/RC. | ||
| img100 | Increasing the fuse element gauge from 30 S.W.G. to 28 S.W.G. on certain models. | ||
| View original record | 6071 To By. c. to By/RD. c. to La. c. to RHC. c. to MX. Rm/RC.15/JH.3.11.38. Re Open Type Fuses. Soon after the introduction of the new open type fuse it was found necessary to increase the gauge of… | ||
| img101 | Confirming the dispatch of a complete set of fuses with a spare bobbin. | ||
| View original record | 6071 - W/L.H. - R.C. Rm/RC.19/JH.3.11.38. In accordance with Mx's. telephone conversation with you re the fuses on 26.G.VI we are sending herewith a complete set with spare bobbin. Will you please… | ||
| img102 | Dispatch of replacement fuses and fuse wire for Wraith car 26.G.VI. | ||
| View original record | To B/DR. from HPS/WSC. c. Re/PC. c. G/Lhw c. Rm/RC. . 6671. HPS/WSC.3/VS.4.11.38. 0/52435. WRAITH CAR 26.G.VI. Will you please post, addressed for the attention of Mr. R. Crawford, Lillie Hall :- 1… | ||
| img103 | Confirming the return of a set of fuses and one bobbin removed from Chassis No. 26 G V1. | ||
| View original record | 6071. Lillie Hall to W. Rm/RC. RC3/L/7.11.38. Re: Chassis No. 26 G V1. - - - - - - - - - - - As requested by MX. on the telephone I am returning herewith a complete set of fuses and one bobbin removed… | ||
| img104 | Advice memo detailing the dispatch of fuses and fuse wire for a specific chassis. | ||
| View original record | ADVICE. ROLLS-ROYCE LTD. S(LH)G/F 6451 Lillie Hall, Seagrave Road, Fulham, LONDON, S.W.6. MEMO OF GOODS FORWARDED Date: 7. 11. 38. To: Messrs Rolls Royce Ltd. Nightingale Road Derby We have this day… | ||
| img105 | Scheme for an accessory fuse unit on the dashboard for a Bentley 5. | ||
| View original record | BY/NS. c. Rm. c. BY/FD. c. Da/JD. June 6071 DA.2/G.8.6.39. CHILDS BENTLEY 5. DASHBOARD. Please receive herewith the following scheme :- F.CD.1403 Accessory Fuse Unit on Dashboard. The above scheme… | ||
| img106 | Proposal to add a junction box and fuse unit for coachbuilders, specifying fuse ratings for the rear blind and centre division. | ||
| View original record | C ap 6067 To Rm/RC. BY/RD.5/B.16.5.39. It is proposed that we should put on to cars the junction box and fuse unit to enable Coachbuilders to connect up, and in here there will be a 3 amp. fuse and a… | ||
| img107 | Fuse wire specifications and recommending cartridge fuses over open-type fuses for certain circuits. | ||
| View original record | 6071 To By. from Rm/RC. c. By/RD. RE FUSES. With reference to memo By/RD.5/B.16.5.39, we have ascertained that No.37 SWG tinned copper wire will fuse at 10 amps, when used in the standard R.R. open… | ||
| img108 | Investigation into a fuse failure after a short circuit incident in a car. | ||
| View original record | 6071 To Rm/FD. from Rm/RC. c. Ev. c. Jnr. Re Fuses. It was reported by Lp., 10.11.39 that he had met with a slight accident in car 11.B.V., in which the tail lamp was knocked off. This caused a short… | ||
| img109 | Fuse wire testing, with observations on 30 SWG wire and a recommendation to replace the existing 28 SWG wire. | ||
| View original record | -2- The fuses were then reloaded with 30 SWG. tinned copper wire and again a gradually increasing current passed through the circuit. Observations were as follows:- 30 SWG. WIRE. Condition of Circuit.… | ||
| img110 | Secret memo instructing a change to the fuse for the tail lamp circuit on B.V. and Senior Range cars. | ||
| View original record | 6051 SECRET. Fuses. To Ev/HH. from Ev. c. to Rm. c. to Rm/RC. c. to Rm/FB. c. to Rm/WH. Ev.1/JH.14.3.40. re Fuse for Circuit of Tail Lamp B.V. and Senior Range. We have been requested in… | ||
| img111 | Recommending the type of wire for fuse carriers and the main fuse. | ||
| View original record | 6071 file copy electrical Ev. c. Ev/HH. Rm/RC.10/ML.15.3.40. With reference to your Memo. Ev.1/JH.14.3.40. we recommend 30 SWG. wire in each of the four fuse carriers, and three strands of 30 SWG. for… | ||
| img112 | Recommending 30 SWG wire for fuse carriers and the main fuse. | ||
| View original record | 6071 Ev. c. EV/HH. Rm/RC.10/ML.15.3.40. With reference to your Memo. Ev.1/JH.14.3.40. we recommend 30 SWG. wire in each of the four fuse carriers, and three strands of 30 SWG. for the main fuse.… | ||