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
Arranging for a 40/50 HP 12-volt battery to be handed over from the Stores to the Experimental Department.2nd Sep 1931Box 168b \ 3  img111
List of proposed modifications regarding handle slots, lid securing, cell lid glands and cell connections.28th Jun 1926Box 168b \ 3  img112
Recommendation to increase the space above the battery plates to prevent liquid from flooding the vent plugs.28th Jun 1926Box 168b \ 3  img113
Sourcing and designing the installation of Dagonite and Exide batteries in a vehicle frame.15th Sep 1926Box 168b \ 3  img114
Cost and experimental alternatives for special battery moulds.20th Oct 1926Box 168b \ 3  img115
Use of standard Peto & Radford battery mouldings instead of producing new ones for a scheme.1st Nov 1926Box 168b \ 3  img116
Special batteries for a 40/50 chassis, quoting a letter from Peto & Radford about their manufacture and damage to a previous delivery.9th Nov 1926Box 168b \ 3  img117
Supply and condition of special batteries for a 40/50 chassis from Peto & Radford.9th Nov 1926Box 168b \ 3  img118
Supply condition and delivery schedule for batteries.12th Nov 1926Box 168b \ 3  img119
Requesting a fortnight's advance notice for when special batteries will be required for the two EAC.7 chassis.12th Nov 1926Box 168b \ 3  img120
Missing lid-holding bolt for a P & R 6-volt battery unit intended for an EAC.7 chassis.16th Dec 1926Box 168b \ 3  img121
Form for recording the routine treatment of car lighting and starting batteries.5th Jan 1927Box 168b \ 3  img122
Graph recording a discharge test for a 6-volt monobloc battery.6th Jan 1927Box 168b \ 3  img123
Battery charging and performance test results.14th Jan 1927Box 168b \ 3  img124
Graph showing the discharge curve and performance data for a 6-volt monobloc battery.14th Jan 1927Box 168b \ 3  img125
Test log of battery performance, detailing charge cycles, cell densities, and temperature readings.7th Jan 1927Box 168b \ 3  img126
Fault on a 6-volt Dagenite battery unit on vehicle 14-EX and arranging a replacement.28th Feb 1927Box 168b \ 3  img127
Letter regarding a fault on a BTH/11 type 6-volt battery where the lid studs have pulled out of the Dagenite.9th Mar 1927Box 168b \ 3  img128
Letter from accumulator manufacturer Peto & Radford regarding a fault with a 6-volt battery.11th Mar 1927Box 168b \ 3  img129
12-volt battery being too wide for the Phantom Chassis battery box and instructing on modifications.18th Aug 1927Box 168b \ 3  img130
Oversized 'P & R' battery that will not fit into the steel box in the Phantom chassis frame.19th Aug 1927Box 168b \ 3  img131
Procedure for working on a mistakenly charged battery for a Phantom model.19th Aug 1927Box 168b \ 3  img132
Urgently requesting a divided battery for bumper tests on a Phantom chassis.25th Aug 1927Box 168b \ 3  img133
Manufacturing mistake on a steel battery box which was cut too fine to fit the 6-volt batteries.25th Aug 1927Box 168b \ 3  img134
Letter to a supplier regarding supplied 6-volt batteries that do not conform to the specified dimensions.30th Aug 1927Box 168b \ 3  img135
Letter from Peto & Radford concerning a disagreement over battery dimensions and tolerances.2nd Sep 1927Box 168b \ 3  img136
Letter from Peto & Radford concerning a remedy for loose terminal nuts on their P&R accumulators, with an enclosed sample.6th Sep 1927Box 168b \ 3  img137
Data log on graph paper recording test measurements and calculations.20th Oct 1927Box 168b \ 3  img138
Instruction sheet detailing high and low rate discharge test results for a P&R BDH 11-1-2 battery.20th Oct 1927Box 168b \ 3  img139
Test chart recording of electrical performance data with handwritten annotations.11th Nov 1927Box 168b \ 3  img140
Confirming an order for batteries for a sports chassis.5th Jan 1928Box 168b \ 3  img141
Particulars in order to purchase batteries for a sports chassis.9th Jan 1928Box 168b \ 3  img142
Ordering three batteries for Sports Chassis EAC.14, stressing adherence to the drawing.1st Jan 1926Box 168b \ 3  img143
Letter from a supplier regarding battery box dimensions for order number 73602.18th Jan 1928Box 168b \ 3  img144
Requesting that P & R batteries in 6-volt units be dispatched in a charged condition.20th Jan 1928Box 168b \ 3  img145
Supplier's concerns about the woodwork of 6-volt battery cases.7th Feb 1928Box 168b \ 3  img146
Battery container specifications and proposing an order for alternative units with moulded containers.8th Feb 1928Box 168b \ 3  img147
Letter discussing battery performance concerning temperature, age, and wooden container specifications.10th Feb 1928Box 168b \ 3  img148
Design limitations of sheet metal battery boxes and the difficulty of battery maintenance.1st Feb 1928Box 168b \ 3  img149
Costs and difficulties of producing moulds for a two-unit battery scheme, quoting supplier correspondence.1st Feb 1928Box 168b \ 3  img150
Letter from Peto & Radford discussing battery voltage fluctuations, manufacturing dimensions, and topping up difficulties.14th Feb 1928Box 168b \ 3  img151
New two-unit P & R battery for Sports cars and the lack of testing before adoption.15th Feb 1928Box 168b \ 3  img152
Issues with the dimensions and wooden containers of special 6-volt batteries.15th Feb 1928Box 168b \ 3  img153
Difficulties in fitting two-unit batteries into sports cars.18th Feb 1928Box 168b \ 3  img154
The difficulties encountered when topping up a battery and adjusting electrolyte levels.1st Mar 1926Box 168b \ 3  img155
The difficulties with fitting and accessing the two-unit battery on the Phantom Sports Model chassis.1st Mar 1926Box 168b \ 3  img156
Battery accessibility, overheating due to engine heat, and proposed improvements for battery lids.1st Mar 1926Box 168b \ 3  img157
Observations on battery deterioration in experimental cars fitted with an auto switch.1st Mar 1928Box 168b \ 3  img158
Suggesting the procurement of 6-volt battery boxes to reconfigure and test cells from existing 12-volt batteries.1st Mar 1928Box 168b \ 3  img159
Cover letter to Mr. G.R.N. Minchin informing him of an enclosed report.2nd Mar 1928Box 168b \ 3  img160
Order for two-unit battery cases, and stock availability from a cancelled Sports Continental order.2nd Mar 1928Box 168b \ 3  img161
Letter from accumulator manufacturer Peto & Radford regarding battery issues and procedures.3rd Mar 1928Box 168b \ 3  img162
Difficulties and solutions for the two-unit battery installation in the Phantom frame.26th Mar 1928Box 168b \ 3  img163
Clarifying an error regarding the quantity of two-unit battery cases required for chassis testing.17th Mar 1928Box 168b \ 3  img164
The battery condition and accessibility on a 19-EX Phantom chassis with a sports body after 9000 miles.17th Mar 1928Box 168b \ 3  img165
Request for a damage report on batteries removed from vehicle 15-EX following an accident.8th May 1928Box 168b \ 3  img166
To the Repair Department confirming that batteries from 15-EX are not mechanically damaged from an accident.8th May 1928Box 168b \ 3  img167
Form for recording the routine treatment and testing of car lighting and starting batteries.12th May 1928Box 168b \ 3  img168
Battery test log sheet for recording cell density, voltage, and cadmium readings during charging.23th Feb 1926Box 168b \ 3  img169
Battery cell test data log showing density, voltage, and cadmium readings.23th Feb 1926Box 168b \ 3  img170
Battery test log showing results for the fourth and fifth charges, including cell density and voltage readings.4th Jun 1928Box 168b \ 3  img171
Issue with slack vent plugs on 40/50 HP batteries causing stripped threads.27th Jun 1925Box 168b \ 3  img172
Electrical experimental record sheet tracking battery usage and mileage.13th May 1928Box 168b \ 3  img173
Graph charting electrical discharge performance over time.29th Aug 1928Box 168b \ 3  img174
Test results for a P.R.B.D.H.11-2-4 Battery, detailing low and high rate discharge performance.31th May 1926Box 168b \ 3  img175
Re-test results for a battery after completing 11,256 miles on an ISEX car in France.7th Jul 1928Box 168b \ 3  img176
Electrical experimental record sheet for a battery, tracking mileage and condition.6th Oct 1928Box 168b \ 3  img177
Construction and ordering of a 12-volt battery for an SS chassis.1st Nov 1928Box 168b \ 3  img178
The provision of a blueprint for a battery drawing under scheme 2743.3rd Nov 1928Box 168b \ 3  img179
Inefficient fastening method for wooden battery covers on a P & R 6-volt (14-EX) battery, and a proposed solution.8th Nov 1928Box 168b \ 3  img180
Order for four more sets of two-unit batteries for an experimental chassis, referencing blueprint F.79640.22th Nov 1928Box 168b \ 3  img181
The inaccessibility of the 'SS' battery box and the risks involved in its maintenance.1st Dec 1928Box 168b \ 3  img182
Letter from accumulator manufacturer Peto & Radford acknowledging comments on two batteries.6th Dec 1928Box 168b \ 3  img183
Letter to a supplier regarding quality issues with recently received batteries.5th Dec 1926Box 168b \ 3  img184
Letter from a supplier regarding production delays and moulding issues with two-unit batteries.13th Feb 1929Box 168b \ 3  img185
Attached letter from Messrs Peto & Radford regarding 40/50-HP chassis two-unit batteries.15th Feb 1929Box 168b \ 3  img186
Graph recording the results of an electrical test, including average amperes, hours, and ampere-hours.24th Feb 1929Box 168b \ 3  img187
Instructions for modifying the resistance values of a component.26th Feb 1929Box 168b \ 3  img188
The order of batteries for the Experimental Department cars.13th Mar 1929Box 168b \ 3  img189
Requesting the purchase of four 6-volt batteries for two experimental chassis from Messrs. Peto & Radford.1st May 1929Box 168b \ 3  img190
Faulty P & R 6-volt battery being returned to the makers for repair under guarantee.14th May 1929Box 168b \ 3  img191
Continually leaking battery cell fault and a guarantee claim.14th May 1929Box 168b \ 3  img192
Tests of sustained Potential Difference (PD) on a battery at various rates of charge and temperatures.16th May 1929Box 168b \ 3  img193
Estimating battery temperatures and open-circuit voltages under various conditions.16th May 1929Box 168b \ 3  img194
Letter from battery manufacturer Peto & Radford suggesting a change to burnt cell-to-cell connections for 40/50 HP car batteries.16th May 1929Box 168b \ 3  img195
Letter to Messrs. Peto & Radford regarding battery cell to cell connections.17th May 1929Box 168b \ 3  img196
Letter from Peto & Radford advocating for burnt cell connections on a 40/50 HP battery.22th May 1929Box 168b \ 3  img197
Letter to Messrs. Peto & Radford discussing the merits of burnt up versus bolted battery connections.24th May 1929Box 168b \ 3  img198
Page 2 of a letter to Messrs. Peto & Radford regarding bolted versus burnt up connections.24th May 1929Box 168b \ 3  img199
Free-of-charge repair of a 6 volt BDH.13 Battery.24th May 1929Box 168b \ 3  img200
Request to obtain two standard 6-volt batteries for experimental cars from Messrs. Peto & Radford.26th May 1929Box 168b \ 3  img201
Complaint regarding a 6-volt battery that continues to leak after a repair.6th Jun 1929Box 168b \ 3  img202
Letter of complaint to Messrs. Peto & Radford regarding a faulty battery repair.6th Jun 1929Box 168b \ 3  img203
Letter from a battery manufacturer regarding a leaking 6-volt unit that they had recently repaired.7th Jun 1929Box 168b \ 3  img204
Letter to Peto & Radford regarding a faulty battery that is leaking again after a recent repair.10th Jun 1929Box 168b \ 3  img205
Sending a P & R battery to be returned to Peto & Radford for repair.1st Jun 1929Box 168b \ 3  img206
Electrical experimental record sheet logging tests on a 6-volt monobloc battery, tracking dates, locations, remarks, and mileage from 1926 to 1929.19th Apr 1926Box 168b \ 3  img207
Electrical experimental record sheet for a P & R DOH 11/2 battery, tracking mileage and tests.19th Apr 1926Box 168b \ 3  img208
Electrical experimental record sheet tracking the usage and mileage of a battery.1st Jul 1929Box 168b \ 3  img209
Experimental and test sheet for a battery, logging usage dates, locations, and mileage.1st Jul 1929Box 168b \ 3  img210


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