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).
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DescriptionDateIdentifier
Clarifying the requirements for Messrs. Elliott to produce an ammeter superior to the Weston instrument.3rd Mar 1925Box 168 \ 5  img024
Complaint about a cracked glass on an Elliott Ammeter.27th Apr 1925Box 168 \ 5  img025
From ROY to EFC regarding the evaluation and potential order of ammeters from Elliott Brothers.14th Jul 1925Box 168 \ 5  img026
Confirming an order for four Elliott ammeters for endurance testing on experimental cars.20th Sep 1925Box 168 \ 5  img027
Instruction sheet regarding the performance and accuracy of Elliott ammeters.11th Sep 1925Box 168 \ 5  img028
Requesting to fit two Elliott ammeters onto a 20 HP chassis and chassis 8-EX for testing purposes.11th Sep 1925Box 168 \ 5  img029
Faults found in two out of four Elliott ammeters received for testing.12th Sep 1925Box 168 \ 5  img030
The condition and electrical calibration of an Elliott Milliammeter No. 4808.22th Sep 1925Box 168 \ 5  img031
Instruction sheet regarding the accuracy testing of two Elliott ammeters after repair.2nd Dec 1925Box 168 \ 5  img032
The replacement and repair of Elliott ammeters on various chassis.1st Dec 1925Box 168 \ 5  img033
Sending a damaged Weston ammeter for repair to the Weston Electrical Instrument Co.9th Dec 1925Box 168 \ 5  img034
Return of a Weston Ammeter from an experimental car for repair.14th Dec 1925Box 168 \ 5  img035
Customer complaint about an American ammeter and the desire to use a British-made alternative.16th Dec 1925Box 168 \ 5  img036
Customer complaint about the 'U.S.A.' branding on a car's ammeter, urging for a British-made replacement.10th Dec 1925Box 168 \ 5  img037
Evaluation and testing of chassis ammeters from different suppliers, Weston and Elliott Bros.1st Jan 1926Box 168 \ 5  img038
Testing of Elliott ammeters on an experimental chassis before standardisation.1st Jan 1926Box 168 \ 5  img039
The mileage accumulated by various Elliott ammeters on different test cars.4th Jan 1926Box 168 \ 5  img040
Complaint about the dial finish on sample ammeters and proposing an alternative supplier.4th Jan 1926Box 168 \ 5  img041
Finish of Elliott ammeters compared to standard Weston instruments and proposing a solution for a uniform appearance.4th Jan 1926Box 168 \ 5  img042
The experimental fitting of an Elliott Ammeter.4th Jan 1926Box 168 \ 5  img043
Choice between Elliott and Weston ammeters for a customer's vehicle.8th Jan 1926Box 168 \ 5  img044
Requesting the comparative cost of the Elliott ammeter versus the current standard instrument.13th Jan 1926Box 168 \ 5  img045
Requesting a comparative cost for Elliott ammeters and questioning the manufacturing origin of the Western Electric Company's ammeter.13th Jan 1926Box 168 \ 5  img046
Query regarding omitting the 'made in America' indication on a Weston Ammeter.13th Jan 1926Box 168 \ 5  img047
Comparative costs of ammeters from Weston and Elliott Brothers.14th Jan 1926Box 168 \ 5  img048
Proposal to exchange and test an Elliott ammeter for standardization.15th Jan 1925Box 168 \ 5  img049
Comparative cost and sourcing queries of Elliott and Weston ammeters.18th Jan 1926Box 168 \ 5  img050
Follow-up memo from Elliott Brothers of London regarding the trial of miniature ammeters.27th Jan 1926Box 168 \ 5  img051
10,000-mile test of an Elliott ammeter on a 40/50 car and a planned test on a 20 HP chassis before standardisation.1st Feb 1926Box 168 \ 5  img052
The performance of the Elliott ammeter compared to the Weston instrument.1st Feb 1926Box 168 \ 5  img053
Page 2 of a report on ammeters from Messrs. Elliott, detailing a previous test failure and comparing the instrument's appearance to a Weston.1st Feb 1926Box 168 \ 5  img054
The mileage test performance and condition of Elliott ammeters.29th Jan 1926Box 168 \ 5  img055
Dismantling of chassis 8-EX and the request for specific parts to be returned for examination.4th Feb 1926Box 168 \ 5  img056
Instruction sheet detailing the satisfactory performance of an Elliott ammeter after 16,644 miles.16th Feb 1926Box 168 \ 5  img057
Instruction sheet detailing an error on an instrument board.29th Jan 1926Box 168 \ 5  img058
From ROY to EFC regarding the progress of Elliott Ammeter tests and a 10,000-mile test on the 20 HP chassis.17th Feb 1926Box 168 \ 5  img059
Delayed 10,000-mile test of an Elliott Ammeter.18th Feb 1926Box 168 \ 5  img060
Ordering and standardising ammeters for the 40/50 HP and 20 HP chassis.1st Mar 1926Box 168 \ 5  img061
Mileage to date for Elliott ammeters, excluding a specific 10,000-mile test.8th Mar 1926Box 168 \ 5  img062
Progress of a 10,000-mile test on a 20 HP chassis equipped with an Elliott ammeter.8th Mar 1926Box 168 \ 5  img063
Damaged Weston ammeter being sent for repair due to a previously identified fault.9th Mar 1926Box 168 \ 5  img064
The status and issues with two Elliott ammeters.13th May 1926Box 168 \ 5  img065
The return of a faulty Elliott ammeter for correction.13th May 1926Box 168 \ 5  img066
Standardisation sheet for an ammeter by Elliott Bros, with remarks on standardising instrument dials and hands.31th May 1926Box 168 \ 5  img067
Query about standardizing the appearance of six car instrument dials and hands.31th May 1926Box 168 \ 5  img068
Requesting the completion of instructions to remove an Elliott ammeter for examination, with a Weston ammeter provided as a replacement.4th Jun 1926Box 168 \ 5  img069
Supplier trial for ammeters between Elliott Bros. and the Weston Company.25th Jun 1926Box 168 \ 5  img070
Cover letter for a standardisation sheet regarding an ammeter made by Elliott Bros.21th Jun 1926Box 168 \ 5  img071
Requesting a copy of a document concerning a standardisation sheet for an Elliott Bros. ammeter.5th Jul 1926Box 168 \ 5  img072
Standardisation of the Elliott ammeter and a proposal to conduct a 50-50 trial with the Weston ammeter.7th Jul 1926Box 168 \ 5  img073
Return of a Weston ammeter to its makers for a new glass fitting due to cracking.21th Jul 1926Box 168 \ 5  img074
Short memo regarding the standardisation of the Elliott Ammeter.24th Aug 1926Box 168 \ 5  img075
The standardisation of the Elliott Ammeter.25th Aug 1926Box 168 \ 5  img076
The fitting of Elliott Ammeters to 20 HP cars and retaining Weston Ammeters for the Phantom model.26th Aug 1926Box 168 \ 5  img077
Standardisation proposal for ammeters made by Messrs. Elliott Bros.27th May 1926Box 168 \ 5  img078
Chassis 12-EX after 6000 miles, detailing the performance of the Exide and P&R battery cells.19th Aug 1926Box 168 \ 5  img079
The instruction of Elliott ammeters for the 20 HP chassis and Weston ammeters for the 40/50 HP chassis.20th Aug 1926Box 168 \ 5  img080
The condition of chassis 12-EX after a 9000-mile test, focusing on electrical components.23th Aug 1926Box 168 \ 5  img081
Fitting of Elliott ammeters to 20 HP cars and continuing with Weston ammeters for the Phantom.1st Aug 1926Box 168 \ 5  img082
The standardization of chassis instrument board ammeters from different suppliers.30th Mar 1926Box 168 \ 5  img083
Confirming the satisfactory completion of a 10,000-mile test on a second Elliott ammeter on experimental chassis 12-MX in France.13th Sep 1926Box 168 \ 5  img084
Electrical experimental road test log sheet with mileage records.20th Oct 1926Box 168 \ 5  img085
Log sheet recording test mileage data and remarks on a component.8th May 1926Box 168 \ 5  img086
Log sheet tracking the mileage and usage details for an experimental Elliott Ammeter.8th May 1926Box 168 \ 5  img087
Mileage and test log for 'Elliott Camels, No 140998' from 1925-1926.25th Jun 1926Box 168 \ 5  img088
Requesting the return of a Weston ammeter, model 301, to its makers for repair.18th Nov 1926Box 168 \ 5  img089
Weston ammeter with broken glass being sent for repair.17th Dec 1926Box 168 \ 5  img090
Supply of ammeters from two firms.12th Jan 1927Box 168 \ 5  img091
Requesting the replacement of a faulty Elliott ammeter on chassis 12-EX.18th Jan 1927Box 168 \ 5  img092
The return of an Elliott ammeter for repair, with an attached assistant's report.26th Jan 1927Box 168 \ 5  img093
Instruction sheet form for work to be completed, with fields for order and customer details.4th Feb 1927Box 168 \ 5  img094
Letter regarding special tests for an Elliott Ammeter and attaching correspondence from Elliott Bros.4th Feb 1927Box 168 \ 5  img095
Letter from Elliott Brothers Ltd. concerning the examination of a miniature ammeter.1st Feb 1927Box 168 \ 5  img096
Test results for an Elliott Ammeter, the reasons for a filed sealing cup, and a proposed resolution.1st Feb 1927Box 168 \ 5  img097
The fitment and supply of 'Weston' and 'Elliott' Ammeters for the 20 HP and 40/50 HP chassis.7th Feb 1927Box 168 \ 5  img098
Sourcing and fitting of English and American ammeters to different chassis models.1st Feb 1927Box 168 \ 5  img099
From BJ to ROY regarding the fitting of English-made Ammeters.2nd Feb 1927Box 168 \ 5  img100
Reliability comparison of Weston and Elliott ammeters.8th Aug 1927Box 168 \ 5  img101
Correspondence regarding a faulty Elliott Ammeter, No. 140999.10th Feb 1927Box 168 \ 5  img102
The re-delivery and status of Elliott Ammeter No.140999.21th Feb 1927Box 168 \ 5  img103
Static charge build-up on the glass of an Elliott ammeter, causing erroneous needle deflections.2nd May 1927Box 168 \ 5  img104
Test Department complaint about an Elliott Ammeter, attributing the fault to static effect.9th May 1927Box 168 \ 5  img105
Visit to Elliott Bros' Works and a complaint from the Test Dept. about faulty ammeters.9th May 1927Box 168 \ 5  img107
Letter from Elliott Bros. regarding electrostatic effects on miniature ammeters and conductive glass.6th May 1927Box 168 \ 5  img108
Visit to Elliott Bros. to discuss improvements and quality issues with their ammeter.11th May 1927Box 168 \ 5  img109
Use of washers for thin and soft instrument dials supplied by Cambridge Instrument Co.11th May 1927Box 168 \ 5  img110
Investigation into the issue of sticking needles on Elliott Ammeters.27th May 1927Box 168 \ 5  img111
Electrostatic test report comparing a Weston Model 301 and an Alliott Type 'M.R.' instrument.16th May 1927Box 168 \ 5  img112
Test report comparing Weston and Elliott instruments under temperature and stray field conditions.26th May 1927Box 168 \ 5  img113
Letter from Ferranti Ltd. regarding a new range of electrical measuring instruments suitable for car dashboards.15th Jul 1927Box 168 \ 5  img114
Page 2 of a letter from Ferranti Limited regarding product pricing and sales support.11th Aug 1927Box 168 \ 5  img115
Letter from Ferranti Ltd. following up on an offer of electrical measuring instruments for dashboard use.11th Aug 1927Box 168 \ 5  img116
Correspondence regarding specifications for a Ferranti chassis ammeter sample.17th Aug 1927Box 168 \ 5  img117
Ferranti ammeter and transformer.19th Sep 1927Box 168 \ 5  img118
Instructions regarding a car's potential skidding on wet roads and a proposed solution for the instrument board.21th Sep 1927Box 168 \ 5  img119
Return of an unsuitable Ferranti ammeter and proposing a replacement.3rd Oct 1927Box 168 \ 5  img120
Suitability of a Ferranti ammeter for chassis use.23th Nov 1927Box 168 \ 5  img121
From PN to EFC regarding a faulty ammeter from Ferranti, Ltd. and seeking an opinion on their instruments.23th Nov 1927Box 168 \ 5  img122
Proposing to exclusively use English-made Weston and Elliott ammeters for the 40/50 HP and 20 HP chassis.6th Dec 1927Box 168 \ 5  img123
Ferranti ammeter, referencing other correspondence.9th Dec 1927Box 168 \ 5  img124


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