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Emergency button [C.B. (manual) areas only]
These were used on Manual C.B. exchanges to prioritise emergency calls
from Kiosks.
Press Button fitted to the pre 1936 A&B installations
A Label No. 187 and
Press-button G, Brass, with
Watertight Barrel will be provided on the upper part of the
wallboard (see picture).
Press Button fitted to the post 1936 A&B installations
A Label No. 231 and
Press-button G, Brass, with Watertight Barrel will be provided
in the Frame, Notice, No. 31, on the upper part of the
wallboard. A suitable hole to take
the barrel of the press-button and two 1 in. starting holes for
the fixing
screws are already drilled in the correct position in the
wallboard. To conform
to the general colour scheme of the layout, a cap with the Rate
Book Part
No. 1/SCA/1 is fitted over the press-button to cover up the
brass flange. Part
No. 1/SCA/1 includes two Screws for Wood, Brass, Rd. Hd., 1 in.,
Size 4.
Method of securing the press-button, cap and emergency
label in post 1936 installations
Remove the
Frame, Notice, No. 31 and recover the glass completely (the
glass is not
required where the emergency button is fitted). Label No. 231
should then be
placed in position, and the press-button passed through the hole
in the label
and the corresponding hole in the wallboard. The cap should then
be placed over
the flange on the press-button and the whole secured by means of
the two screws
supplied with the cap. The frame should then be replaced.
The picture below shows a Pre 1936 installation
The picture below shows a Post 1936 installation
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