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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).
Letter from Joseph Lucas Ltd regarding a sample 12V battery and an LRT7 regulator for testing.

Identifier  ExFiles\Box 164\3\  img040
Date  6th July 1937
  
HEAD OFFICES & WORKS:
GREAT KING ST.{Capt. P. R. Strong}, BIRMINGHAM.
CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS.

JOSEPH LUCAS LIMITED
GREAT KING STREET
BIRMINGHAM 19
TELEPHONE: NORTHERN 5201 (12 LINES)
TELEGRAMS & CABLES: 'LUCAS, BIRMINGHAM'

"KING OF THE ROAD" LAMPS, HORNS,
"CYCLEALITIES", "MOTOR-CYCLEALITIES",
"MOTORALITIES", MAGNETOS, BATTERIES,
ELECTRIC LIGHTING & STARTING SYSTEMS.
Codes: A.B.C. 5th & 6th EDITs & BENTLEYS 1st & 2nd.

SERVICE DEPÔTS
BELFAST 3/5, CALVIN STREET, MT. POTTINGER.
BIRMINGHAM, 18 GREAT HAMPTON STREET.
BRIGHTON, 4 55, OLD SHOREHAM RD. HOVE.
BRISTOL 345, BATH ROAD.
CARDIFF 54A, PENARTH ROAD.
COVENTRY PRIORY STREET.
DUBLIN PORTLAND STREET, NORTH, NORTH CIRCULAR ROAD.
EDINBURGH, 11 60, STEVENSON RD. GORGIE.
GLASGOW 227/229, ST.{Capt. P. R. Strong} GEORGE'S ROAD.
LEEDS 64, ROSEVILLE ROAD.
LIVERPOOL, 13 450/456, EDGE LANE.
LONDON GORDRECHT ROAD, ACTON VALE, W.3
LONDON 753/759, HIGH ROAD, LEYTON, E.10
LONDON 319, REGENT ST.{Capt. P. R. Strong} W.1
LONDON 155, MERTON ROAD, WANDSWORTH, S.W.18
MANCHESTER, 3 291/293, DEANSGATE
MANCHESTER TALBOT RD. STRETFORD
NEWCASTLE on TYNE, 2 64/66, ST.{Capt. P. R. Strong} MARY'S PLACE

WHEN REPLYING PLEASE REFER TO

Messrs. Rolls-Royce, Limited,
D E R B Y.

Dear Sirs,

For the attention of Mr. West.

Our Mr. F.G. Thacker on his last visit to your works, brought over with him a sample 12Volt Battery, our type STXR9A which is interchangeable with the present type of battery you are fitting to the Bentley Models.

We should be pleased if you would put this sample battery through various tests, etc. and in response to your request, we send you two curves showing the continuous discharge at 5.1 amperes and discharge voltage curves at 333 and 200 amperes.

No doubt you will let us have your comments on the performance of this battery at your early convenience.

We would mention whilst writing this letter to you, that we despatched last night for your attention, one LRT7 Regulator mounted on an RF30 base with 3BA terminals. This regulator, however, is not the same one as was returned by you after a few hours running. That one will follow on in the course of a post or so, and we would also draw your attention to the improved "Marking" of the Terminals on the fabric base.

Yours faithfully,
JOSEPH LUCAS LIMITED.

Technical Sales Dept.

Handwritten notes:
b621 (top center)
CAP. (next to paragraph 1)
CAP. (next to paragraph 3)
  
  


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