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 This
wall-type telephone was designed for outdoor use, typically at
taxi cab ranks and similar.
Introduced
in 1937.
It has
a 164-type handset with a
slotted, flat, mouthpiece, rather than the more common ‘spit cup’.
There is no dial, since it was designed primarily for receiving
calls.
The
London Telecommunications Region devised a
modification with a separate lockable box with a dial; this was
a
'special' for London Transport, whose bus inspectors at one time
had outdoor telephones fixed to bus stops at strategic locations
all over London.
As a
design, the Telephone No. 145 lasted a long
while and examples may possibly still be in use; they can still
be found out of use outside railway stations (e.g. Northampton
Castle).
No bell was incorporated within this phone
itself and an
external bell would have to be provided.
It was
superseded in 1965 by the Telephone No. 745,
which had an internal bell and provision for fitting a dial.
Manufactured by: Unknown
Colours:
Black enamelled iron casing with a black Bakelite handset.
The case could be painted by the user and often
was.
Size: 381mm
x 152mm x
139mm (15" x 6" x 5.5").
Telephone
included (1956):-
1 x Block, Terminal No. 20/4, Black.
1 x Capacitor, M.C. No. 102.
1 x Cast Iron case (Drawing No. 63012).
1 x Clip No. 29.
1 x Coil, Induction No. 27.
1 x Cordage, Instrument No. 3M. 24".
1 x Cord, Instrument, Extensible No. 3/4.
2 x Protectors, G or I Protector and Fuse No.1.
1 x Telephone No. 164 (with
Mouthpiece No. 18).
To be requisitioned separately:-
1 x Bell No. 67A.
Circuit diagram
- N245.
Drawing -
91127/1 and
91127/2.
Telephone No. 145 at a Taxi rank
ENGINEERING INSTRUCTIONS
TELEPHONES
STATIONS
Z 3015
Issue 1, Feb 1951
TELEPHONE No. 145
(for use at cab-ranks)
Scope of Instruction
This Instruction describes the Telephone No. 145 and indicates
the method of installation
and maintenance.
Description
 The
Telephone No. 145 supersedes Telephone No.
125 and has been
introduced for use in C.B. and auto areas to provide telephone
facilities, on an incoming
basis only, at cab ranks and in other similar outdoor
positions. The instrument has,
therefore, been designed to be weather resistant. A bell is not
incorporated in the
instrument and it is, therefore, necessary to provide a Bell
No. 67A
as a separate item.
The Telephone No. 145 weighs approximately 30
lb. It has an enamelled cast-iron case,
measuring approximately 15in by 6in by 5in overall, fitted with
a spring loaded
controlling device for the door. Contained in this cast iron
case are a protector,
terminal block and weatherproof container. The
weatherproof container is mounted on the
rear of a hinged panel, and encloses a Coil Induction, No. 27,
Capacitor, MC No. 102 and
gravity switch springs.
This hinged panel and associated apparatus is
known as a Telephone No. 145, incomplete. The
gravity switch mechanism, including the restoring spring, is
fitted to the front of this
hinged panel and the end of the switch arm is formed into a
prong which supports the Telephone No. 164,
which is fitted with a Mouthpiece No. 18, a
Transmitter, Inset, No. 13 and a Cord, Instrument, No. 3/63,
18in.
Through the back of the outer case are four countersunk holes,
tapped five/sixtenth inch
Whitworth thread, for fixing purposes. Provision is made in both
the top, and bottom, of
the case for the entry of 0.75in conduit. When the
telephone is issued, the conduit holes
are fitted with wooden plugs. In addition, four holes
(tapped No. 4 BA and fitted with
screws) are provided in the top of the case for fixing a
Bracket, Mounting, CC which is
used to carry a Bell No. 67A. Removable enamelled steel
plates, on which the exchange
number should be sign written, are fitted on both sides of the
telephone case.
INSTALLATION
Position
Although the instrument is weather-proofed, it is advisable to
fit it in a sheltered
position to give the longest possible service, and ensure the
greatest comfort to the
user.
When the telephone is to be fitted to a lamp
standard or similar support, a suitable
bracket should be made locally, and the telephone secured to
this bracket by means of four
bolts which should pass through the bracket into the tapped
holes in the case.
Bells
Unless the telephone is to be fitted to a wall, it will be
simpler to attach the bell
directly to the telephone. To fix the bell in this manner,
a Bracket, Mounting, CC, which
includes all the necessary nuts and bolts for securing a Bell
No. 67A to the bracket,
should be requisitioned.
Wiring
Cable, I.R.V., Core T, 1-pair/12.5, Circular, should be used for
wiring between the
telephone and bell. This wiring (whether the bell is
attached to the telephone case or
not) and the external lead-in must be enclosed in Conduit No.
2. The lead-in conduit should
be brought in at the bottom. of the case, and that carrying the
wiring to the bell should
be led out at the top of the case. Both conduits should be
secured to the case by means of
lock nuts. To prevent moisture from entering the conduits,
the ends remote from the case
should be made to point in a downwards direction, employing
bends and elbows, if
necessary. These ends should also be fitted with Bushes,
Conduit, Brass to Prevent
abrasion of the cables.
Labels
The exchange name and number should be sign written on one (or
both) of the removable
metal plates especially provided on the sides of the case.
Prevention of rust on conduit, screw-heads, etc. When the
fitting work has been completed
and the label(s) replaced, a coat of Paint, Black, for ironwork
should be applied to all
screw-heads, around all bolt-holes on the outside of the
telephone case and to every joint
in the conduit to prevent the formation of rust.
MAINTENANCE
Access is gained to the protector, the terminal block and to the
weatherproof container
housing the induction coil, capacitor and gravity switch springs
by loosening the captive
screw in the centre at the top of the inner panel and swinging
the panel outwards and
downwards on its hinges.
During a maintenance visit the correct action of the gravity
switch plunger should be
verified and if the plunger tends to stick, a small drop of
Graphite Colloidal in Oil
should be applied to the candle-wick in the oil hole at the top
of the plunger. The spring
which controls the doors should also be examined and the spring
(Part No. 2/SSP/529) should
be replaced if it is weak or broken. The felt washer
should be kept moist by the
occasional application of one or two drops of Graphite Colloidal
in Oil and the screw
which fixes the spring device to the door should be examined and
tightened if necessary.
PRECAUTIONS
(a) The induction coil, capacitor and gravity-switch springs are
located in a watertight
container fitted with a rubber gland in the interior of the
telephone. This container must
not be opened under damp atmospheric conditions. If
necessary the whole panel (Telephone
No 145, Incomplete) must be removed from the case by withdrawing
the two panel securing
screws at the bottom of the panel and disconnecting the cordage
from the terminal block in
the outer case. The panel should then be taken to the
officer's headquarters or to the
nearest exchange where the container can be opened to allow any
repairs to be effected.
(b) The telephone is issued with cords of the cab tyre type
(Cordage, Instrument No. 2/M
and 3/M and Cords, Instrument, No. 3/63 KB, 18in). These
cords are designed for use in
damp situations and should not be replaced by other types,
except as a temporary measure.
Replacements
(a) Cords Cordage, Instrument, No. 2/M and 3/M and Cords,
Instrument, No. 3/63 KB, 18in
should be replaced only by the same type of cordage and a spare
stock of these items
should be held.
(b) Capacitor, MC, No 102
will normally be available for replacement purposes.
(c) Gravity switch Springs
Access to the gravity switch springs is difficult, and where
this item is found to be out
of adjustment, the panel (Telephone No. 145, Incomplete) should
be replaced under normal
maintenance exchange procedure.
(d) Coil, Induction, No 27
Where a Coil, Induction, No. 27 requires to be changed, the
replacement item should be
taken from the spare stock held for use with 300-type telephones
(see A 5201).
(e) Mouthpiece No 18
If replacement of the Mouthpiece No. 18 is necessary, and spares
are not held locally, a
Mouthpiece No. 15, supplies of which will be held for
replacement purposes on Telephones No.
164, may be substituted as a temporary measure. A new
Mouthpiece No. 18 should be obtained
under the maintenance exchange procedure.
 (f) Protector
Early issues of Telephone No. 145 were fitted with Protectors, G
and, if these items are
faulty, the telephone should be exchanged for a later issue of
Telephone No. 145 fitted
with Protectors and Fuses, No. 12.
(g) Transmitters, Inset, No. 13
These must always be used for replacement purposes (shown to the
right).
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