Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Rolls-Royce Experimental Archives                
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DescriptionDateIdentifier
Review of different battery types, comparing costs, cold starting performance, and longevity, with a recommendation for standardization.22th Apr 1936Box 58 \ 4  Scan258
Recommendation to switch to new Exide batteries for production models while continuing to test experimental Dagenite batteries.22th Apr 1936Box 58 \ 4  Scan259
Request for a list and dimensions of negative and positive battery plates from Peto & Radford Co. Ltd.23th Apr 1936Box 58 \ 4  Scan260
Request to Chloride Electrical Storage Co. Ltd. for a list of battery plate dimensions and thicknesses.23th Apr 1936Box 58 \ 4  Scan261
Letter from accumulator manufacturer Peto & Radford providing a schedule of battery plate sizes.24th Apr 1936Box 58 \ 4  Scan262
Schedule detailing the dimensions and types of battery plates.24th Apr 1936Box 58 \ 4  Scan263
Letter from The Chloride Electrical Storage Co. Ltd. providing dimensions for various battery plates.25th Apr 1936Box 58 \ 4  Scan264
Letter from Exide Batteries regarding the availability and samples of battery plates.25th Apr 1936Box 58 \ 4  Scan265
Decision to use thin plate batteries on the Phantom III, 25/30, and Bentley models.25th Apr 1936Box 58 \ 4  Scan266
Confirming the use of thin plate batteries on the Phantom III model, while postponing the change for the 25/30 and Bentley models.27th Apr 1936Box 58 \ 4  Scan267
Letter from an accumulator manufacturer concerning the examination of a faulty battery.27th Apr 1936Box 58 \ 4  Scan268
Letter to Peto & Radford Ltd. regarding a returned battery that did not give its rated capacity.28th Apr 1936Box 58 \ 4  Scan269
Laboratory test report on a returned 6-HZD9-S battery.28th Apr 1936Box 58 \ 4  Scan270
Letter from PETO & RADFORD concerning the apparent failure of separators and the arrangement of further capacity tests.29th Apr 1936Box 58 \ 4  Scan271
Letter to Messrs. Peto & Radford Co. Ltd. regarding a battery capacity test conclusion.29th Apr 1936Box 58 \ 4  Scan272
Order be passed to Peto & Radford Ltd. for various accumulators.29th Apr 1936Box 58 \ 4  Scan273
Life test schedule for thin plate Exide XC and Dagenite HZ batteries.29th Apr 1936Box 58 \ 4  Scan274
Use of thin plate batteries for the Phantom III chassis and experimental testing for Bentley models.29th Apr 1936Box 58 \ 4  Scan275
Requesting details on Exide batteries for the Phantom III chassis and an update on P & R battery approval.5th May 1936Box 58 \ 4  Scan276
The Exide battery for the Phantom III chassis and the testing of the P.& R. battery.9th May 1936Box 58 \ 4  Scan277
Letter from accumulator manufacturer Peto & Radford discussing and comparing their battery design with a competitor's for the Phantom III.11th May 1936Box 58 \ 4  Scan278
Letter from Peto & Radford to H.E. West regarding a decision on a thin plate lighter weight Bentley battery.11th May 1936Box 58 \ 4  Scan279
Providing the manufacturer's reference number for the Phantom III model's Exide battery.12th May 1936Box 58 \ 4  Scan280
Letter to Mr. Minchin of Peto & Radford Ltd. regarding car and Bentley battery tests and supply.13th May 1936Box 58 \ 4  Scan281
Letter from an accumulator manufacturer regarding the supply and testing of different battery plates.14th May 1936Box 58 \ 4  Scan282
Letter from accumulator manufacturers Peto & Radford arranging a visit to Derby.18th May 1936Box 58 \ 4  Scan283
Letter to Mr. Minchin confirming an appointment for the 28th of the month.20th May 1936Box 58 \ 4  Scan284
Letter from accumulator manufacturer Peto & Radford regarding a change of arrangements for a visit.20th May 1936Box 58 \ 4  Scan285
Damage to batteries caused by the securing method in the chassis and proposing a solution.20th Apr 1936Box 58 \ 4  Scan286
Letter from Peto & Radford regarding the return of a 6-HZD9-S battery after tests were completed.21th May 1936Box 58 \ 4  Scan287
Urgent battery order for a Bentley Chassis.26th May 1936Box 58 \ 4  Scan288
Letter from accumulator manufacturers Peto & Radford confirming a meeting.26th May 1936Box 58 \ 4  Scan289
Order for a standard Bentley Exide 12 volt battery.29th Apr 1936Box 58 \ 4  Scan290
Order for a Peto & Radford battery for experimental testing on a Phantom III.30th May 1936Box 58 \ 4  Scan291
Recommending to revert to sharing battery orders for the Phantom III chassis between two firms.30th Apr 1936Box 58 \ 4  Scan292
Ordering of standard batteries for Bentley chassis, as the standardization for thinner plate batteries is not yet ready.30th May 1936Box 58 \ 4  Scan293
Letter from Dagenite Accumulators regarding battery testing and specifications for the Phantom III.2nd Jun 1936Box 58 \ 4  Scan294
Letter from Peto & Radford discussing battery testing, specifications, and proposals for various car models.8th Jun 1936Box 58 \ 4  Scan295
Letter from accumulator manufacturers Peto & Radford regarding the battery title for the Phantom III.8th Jun 1936Box 58 \ 4  Scan296
Letter concerning two large car batteries loaned by the Bentley Service Depot for the R.A.F. and S.B.A.C. shows that have gone missing.11th Jul 1936Box 58 \ 4  Scan297
Confirming the return of loaned batteries for the S.B.A.C. Show.4th Aug 1936Box 58 \ 4  Scan298
Advantages of reversing polarity to a positive earth system on R.R. and Bentley cars.19th Aug 1936Box 58 \ 4  Scan299
Letter from The Concordia Electric Wire Co. Ltd. promoting their new 'Concord Herculacker' cellulose lacquer cables.4th Feb 1930Box 59 \ 1  Scan001
Requesting a revised list of L.T. cables for the Phantom chassis and proposing an experimental set of wires.24th Feb 1930Box 59 \ 1  Scan002
Requirements for low tension cable for the Phantom II chassis and ordering wire for experimental purposes.5th Mar 1930Box 59 \ 1  Scan003
Specification table for low tension wire required per Phantom II chassis.14th May 1930Box 59 \ 1  Scan004
Proposed changes to the Phantom II Chassis L.T. (Low Tension) wiring.10th Mar 1930Box 59 \ 1  Scan005
Conductor sizes and the potential use of experimental cellulose lacquered L.T. wire for the 40/50 HP chassis.11th Mar 1930Box 59 \ 1  Scan006
Request to obtain a tin of cellulose lacquer to apply to the ends of cut cable insulation to prevent fraying.20th Sep 1930Box 59 \ 1  Scan007
Clarifying the requirement for clear cellulose varnish for L.T. cables, as the wrong black varnish had been supplied.30th Sep 1930Box 59 \ 1  Scan008
Correct application of black cable varnish with the Macintosh Cable Co. Ltd.3rd Oct 1930Box 59 \ 1  Scan009
Incorrect black varnish received from Macintosh Cable Co., and requiring a clear cellulose finishing varnish instead.7th Oct 1930Box 59 \ 1  Scan010
Copy of a letter from a supplier in Manchester quoting prices for various specifications of standard cables.4th Dec 1931Box 59 \ 1  Scan011
From W.T. Glover & Co. Limited detailing payment and delivery terms.17th Feb 1932Box 59 \ 1  Scan012
Chassis wiring and cable samples received from the supplier Ripaults Ltd.17th Feb 1932Box 59 \ 1  Scan013
Samples of cable for chassis wiring received from British Insulated Cables Ltd.18th Feb 1932Box 59 \ 1  Scan014
Letter to Ripaults Ltd. regarding samples of Ripogloss Cables for L.T. automobile wiring.25th Feb 1932Box 59 \ 1  Scan015
Letter from Ripaults Ltd. discussing the supply and pricing of their RIPOGLOSS electric cables.26th Feb 1932Box 59 \ 1  Scan016
Request to obtain various lengths and types of varnished fabric covered chassis cable from Ripaults Ltd.9th Mar 1932Box 59 \ 1  Scan017
Cable standards and requesting a price comparison between Glover L.T. and Ripault cables.9th Mar 1932Box 59 \ 1  Scan018
Quotation letter for different types of low tension chassis wiring flexibles.17th Mar 1932Box 59 \ 1  Scan019
Letter from a supplier detailing prices, payment terms, and specifications for flexible coloured cables.17th Mar 1932Box 59 \ 1  Scan020
Concerns over volt drop from a proposed wiring method for the 'Japan 3' and comparing it to the 20/25 HP scheme.8th Mar 1932Box 59 \ 1  Scan021
Current electrical wiring system and considering an alternative seen on an Alfa Romeo.5th Apr 1932Box 59 \ 1  Scan022
Condition of standard chassis wiring and considering the use of alternative Sistoflex cables.1st Apr 1932Box 59 \ 1  Scan023
Order for various lengths and colours of varnished fabric covered chassis cable.9th May 1932Box 59 \ 1  Scan024
Fitting and comparing Ripogloss and Glover's cables on experimental chassis.15th Sep 1932Box 59 \ 1  Scan025
Reference note pointing to previous correspondence files.18th Jan 1932Box 59 \ 1  Scan026
Defective Dynamo, No. JB.45, from chassis 11-JS, sent for examination and report.18th Jan 1932Box 59 \ 1  Scan027
Complaint about a defective coil causing misfires on chassis GBM-64.22th Jan 1932Box 59 \ 1  Scan028
Total battery discharge for chassis GPS-1 belonging to Mrs. Cadbury.22th Feb 1932Box 59 \ 1  Scan029
Letter to Bosch Ltd. regarding a battery fault on a customer's chassis.2nd Mar 1932Box 59 \ 1  Scan030
Rumoured breakdown of a Bosch dynamo on Mr. Walter Iden's Phantom chassis.3rd Mar 1932Box 59 \ 1  Scan031
Follow-up memo confirming customer satisfaction with a rectified battery issue on chassis 119-GN.10th Mar 1932Box 59 \ 1  Scan032
Letter from Bosch Limited responding to an enquiry about battery trouble on a Mr. Walter Idens' chassis.31th Mar 1932Box 59 \ 1  Scan033
Request to examine a failed starter motor from chassis 189-GY, report on the cause of failure, and advise on cost allocation.9th Apr 1932Box 59 \ 1  Scan034
The return of a faulty starter motor from chassis No.189-GY and requesting an urgent report on the recurring issue.6th Apr 1932Box 59 \ 1  Scan035
Investigating a complaint about a starter motor on chassis 189.GY.11th Apr 1932Box 59 \ 1  Scan036
The handling of a request for information on Chassis No. 189-GY.12th Apr 1932Box 59 \ 1  Scan037
Starter motor fault on Chassis 189 GY with reference to Derby's report.12th Apr 1932Box 59 \ 1  Scan038
Motor complaint on chassis 189-GY, diagnosing a voltage loss on the system as the likely cause.4th Apr 1932Box 59 \ 1  Scan039
Internal memorandum regarding a customer's persistent starter motor issues and proposed further investigation.15th Apr 1932Box 59 \ 1  Scan040
Recurring dynamo failure on chassis GUK.60, suggesting an installation issue.29th Apr 1932Box 59 \ 1  Scan041
Recurring faulty dynamos on a 20/25 chassis GUK.60 due to a defective dynamo-battery circuit connection.3rd May 1932Box 59 \ 1  Scan042
Service sheet detailing the cause and remedy for dynamo overheating on 40/50 and 20/25 chassis.4th May 1932Box 59 \ 1  Scan043
Recurring issues with faulty dynamos, attributing the cause to system faults rather than the dynamos themselves.4th May 1932Box 59 \ 1  Scan044
Wording of a Depot Sheet regarding dynamo trouble, comparing it to an Instruction Book.10th May 1932Box 59 \ 1  Scan045
Suggesting revised wording for a depot sheet regarding dynamo operation and battery circuit integrity.9th May 1932Box 59 \ 1  Scan046
Returned flywheel and starter motor from chassis GMU-30 due to a complaint of jamming and knocking.12th Oct 1932Box 59 \ 1  Scan047
Customer complaint regarding a failed dynamo on Chassis GZU-11 and its return for examination.16th Nov 1932Box 59 \ 1  Scan048
Report regarding a returned Dynamo (D.52450) that only required cleaning of grease from the commutator.18th Nov 1932Box 59 \ 1  Scan049
Battery charging issues and potential solutions for a customer's car used in strenuous mountain conditions.29th Nov 1932Box 59 \ 1  Scan050
Customer's vehicle issues, specifically concerning cold starts, dynamo charge rates, and vibrator control.20th Nov 1932Box 59 \ 1  Scan051
Dynamo performance and potential modifications for a customer's car.20th Nov 1932Box 59 \ 1  Scan052
Typed memo discussing customer service issues regarding battery problems, vibrator-control, and fitting a special output switch to a car.1st Dec 1932Box 59 \ 1  Scan053
Letter providing advice on protecting a car from very cold weather conditions.1st Dec 1938Box 59 \ 1  Scan054
Typed letter discussing cold weather vehicle operation, including anti-freeze and battery charging.21th Dec 1938Box 59 \ 1  Scan055
Letter concluding a discussion on potential damage to an armature from battery conditions.21th Dec 1938Box 59 \ 1  Scan056
Production of another set of Three-charge scheme units for Chassis GEX.29 for Doctor Vernon.22th Dec 1932Box 59 \ 1  Scan057
Customer's battery, recommending an upgrade to a larger capacity battery and a constant voltage dynamo system for chassis 38-MY.16th Sep 1933Box 59 \ 1  Scan058


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