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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).
Design changes to the L.H. Chassis, specifically the hand brake quadrant stop and a gear lever retaining nut.

Identifier  ExFiles\Box 19\3\  Scan347
Date  14th May 1930
  
X7772

By.from Da.{Bernard Day - Chassis Design}
C. Sg.{Arthur F. Sidgreaves - MD} Hs.{Lord Ernest Hives - Chair}

Da{Bernard Day - Chassis Design}3/M14.5.30.

L.H. CHASSIS.

X7772

With further reference to By/Cgh{W Clough}6/G10.S30,
we send herewith N. sch. 3099 shewing a stop for the hand
brake quadrant. We have thought it will, as the stop
comes in quite simply, to replace the previous "off" stop and
provide both stops on this sheet metal piece. A slight
machining back of the gearbox casting is required.

We also send N. scheme 3100. shewing the nut
retaining the gear lever in the tower with sunk serrations
instead of holes. We suggest that the sunk type of
serration is better than the ordinary type in this
particular case.

We believe that the holes in the nut were
intended as a vent for the gearbox, and we think a vent is
necessary in any case. On N. scheme 3100 we have
therefore indicated an arrangement similar to that on the
American Phantom I to provide a vent.

Da.{Bernard Day - Chassis Design}
  
  


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