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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).
'Farley' easy change gearbox and its features.

Identifier  WestWitteringFiles\V\March1931-September1931\  Scan079
Date  24th March 1931
  
HS.{Lord Ernest Hives - Chair} FROM E.{Mr Elliott - Chief Engineer}

C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager}
C. to BY.{R.W. Bailey - Chief Engineer} HY.{Tom Haldenby - Plant Engineer}
C. to DA.{Bernard Day - Chassis Design} RHC.{R. H. Coverley - Production Engineer}

ORIGINAL

E2/M24.3.31
RECEIVED 1931 MAR
X2061.

EASY CHANGE GEARBOX.

The gearbox we were discussing with the
roller clutch controlled sideshaft is known as the Farley.

It gives an easy change on all gears
except when engaging top, and can be arranged to have helical
3rd. for silence.

The first version of it interconnected
with clutch pedal is illustrated in the 'Motor' of Aug. 2nd.
1927. page 6.

The second version interconnected with
the change speed lever is described in the 'Motor' of Oct. 9.
1928. page 448.

HY.{Tom Haldenby - Plant Engineer} suggests a double scroll clutch in
place of the roller clutch but there must be the minimum of
drag.

E.{Mr Elliott - Chief Engineer}
  
  


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