PA 150 POLICE SYSTEM


P.O. ENGINEERING DEPT.
ENGINEERING INSTRUCTIONS
TELEPHONES
STATIONS
P 1105
Issue 1, 1936

POLICE TELEPHONE AND SIGNAL SYSTEM (USING “SWITCHBOARDS, PA 150 AND 150 TD “)
Signalling Lamps and Bells

1. General
The lamp used for signalling police officers by intermittent flashing is a ”Lamp, 100 watt, G.S.,” and is normally situated at the top of the pillar or police kiosk, inside a specially constructed lantern (see Fig. 1, P 1106).

2.
The lamps are normally provided and maintained by the Department. Exceptions are referred to in P 3102, para. 9 and P 3103, para. 50.

3. Lantern, PA No. 1

This is a cast-iron fitting containing a lamp holder and, a specially constructed cylindrical lens, through which the
flashing of the signal lamp can be seen in all directions. The Rate-book title of the lens is “Glass, No. 40.”

4. Bell, No. 60A, Unmounted

This is a loud toned bell which can be fitted in the dome of a “Lantern, PA No. 1” to ring in unison with the flashing of the signal lamp. The bell has a solenoid movement, is power operated and arranged for working on 100-130 volts D.C., 200-260 volts D.C. or 200-260 volts A.C.

Lantern PA No. 1



 
 
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