Rolls-Royce Archives
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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).
Cablegram reporting on comparative bearing tests between Allison and Derby parts, noting failure points and proposing further tests.

Identifier  ExFiles\Box 173\1\  img162
Date  14th February 1941
  
Form no. 6.
WESTERN UNION
(THE WESTERN UNION TELEGRAPH COMPANY)
CABLEGRAM
ANGLO-AMERICAN TELEGRAPH Co., Ld.
CANADIAN NATIONAL TELEGRAPHS

BIRMINGHAM, 1. BROAD ST.{Capt. P. R. Strong} CHAMBERS
TELEPHONE CENTRAL 2954
TELEX CENTRAL 2954
DATED 2 AM 14 FEB 1941

CRRBM 43 INDIANAPOLIS INDIANA 63 1ST

NLT HIVES ROYCAR DERBY
- HIVES-
MESSRS ROLLS ROYCE LD
NIGHTINGALE RD
DERBY

COMPLETED TWENTY MINUTES RUNNING ALLISON BEARINGS AT THREE THOUSAND FIVE HUNDRED RPM BEFORE DISMANTLING BEARING CONDITION GOOD COMPARATIVE TEST DERBY BEARINGS FAILURE OCCURRED AFTER TWO AND HALF MINUTES AT THREE THOUSAND TWO HUNDRED FIFTY RPM TEMPERATURE REACHED TWO HUNDRED CENTIGRADE BEARING CONDITION POOR PROPOSE RUNNING FURTHER TEST ALLISON BEARINGS IF SATISFACTORY INCREASE SPEED TO ASCERTAIN MAXIMUM PERMISSIBLE RPM.

COVERLEY
  
  


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