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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).
Requesting the modification of two old Lucas Wind-Horn relay switches.

Identifier  ExFiles\Box 166\9\  img012
Date  19th June 1936
  
76666

To Roy.{Sir Henry Royce}
c. to G/Mt.
c. to D/EP.{G. Eric Platford - Chief Quality Engineer}

HS{Lord Ernest Hives - Chair}/Wst. 27/JH. 19.6.36.

Lucas Wind-Horn Relays.

We have two of the old type of horn relay
switches which we would like modified, to bring
them up to present standard.

The modifications involves an extra
winding being fitted on one of the bobbins;
the object being to produce a loud note when the
push-button is pressed in such a manner as to make
simultaneous contact with both "loud" and "soft"
terminals.

Will you please arrange for the return
and modification of these units.

Order No. 54317.

Received

HS{Lord Ernest Hives - Chair}/Wst.
  
  


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