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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 Thompson Products, Inc. regarding the use and cost of sodium-cooled valves.

Identifier  ExFiles\Box 174\2\  img311
Date  18th January 1939
  
Thompson Products, Inc.
CLEVELAND: VALVES, VALVE SEAT INSERTS, PISTONS AND PINS, BOLTS AND BUSHINGS
DETROIT: TIE RODS, DRAG LINKS, STARTING CRANKS, BRAKE ROD ASSEMBLIES

GENERAL OFFICES
CLEVELAND, OHIO
January 18, 1939

Mr. W.A. Robotham
Rolls-Royce Limited
Derby, England

Dear Mr. Robotham:

Referring to your Letter of December 22, we had used a valve for some time that was sodium cooled and some other small lots have been used, but in general they have not progressed far on account of price.

With kindest personal regards,

Very truly yours,
THOMPSON PRODUCTS, INC.

A.{Mr Adams} T. Colwell
Vice President

ATC LCG
  
  


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