Last Updated：2022/12/24
… Mr. Grierson remarks that on the L.P.T.B. tube stock in general the electro-pneumatic brake is in use, but that the new 1938 stock is fitted with the self-lapping electro-pneumatic brake, which is under the control of an automatic mercury-operated retardation controller when normal service stops are being made.
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…
Mr.
Grierson
remarks
that
on
the
L.P.T.B.
tube
stock
in
general
the
electro-pneumatic
brake
is
in
use,
but
that
the
new
1938
stock
is
fitted
with
the
self-lapping
electro-pneumatic
brake,
which
is
under
the
control
of
an
automatic
mercury-operated
retardation
controller
when
normal
service
stops
are
being
made.
