Report of the General Superintendent of Police ... - Chicago Cop.com

GENERAL SUPERINTENDENT'S REPORT 129
Additional telephone lineR were built connecting with the
department system at the following offices:
Captain's office-17th precinct.
Captain's office-Mounted Squadron.
Captain's office-44th precinct.
Lockup Keeper's office-21st precinct.
Lieutenant's oftice-44th precinct.
Squad Room office-Detective Bureau.
Custodian's office-City Hall.
In my report of last year I called attention to the condition
of our signal and telephone circuits, they being, in most cases,
useless for telephone purposes, on aCCOllnt of induction from high
potential power and light circuits.
Formerly, police circuits were designed mainly for signal
purposes, and as such, were of the closed series type, a form
('onsidered best, as the wire was under constant supervision, but
on account of the unbalanct;>d condition of this construction were
not adapted for perfect telephoning.
To obviate the difficulty now experienced in telephone transmission,
I have designed a circuit for both telephone and signal
purposes, which has proven entirely satisfactory after seven
months' actual service in the 26th precinct, where 25 patrol boxes
are operated on two circuits. Signal bells or lights on the patrol
box, for attracting the attention of officers, can be readily attached,
without detracting from the efficiency of the circuits for
telephone use, and the cost of rebililding many of the eircuits
and equipping the sta:tion for this improvement will not be large
and I expect to extend it to a number of stations in the near
future.
A report of the services rendered by the patrol wagons,
ambulances and operators, in detail is attached.
Respectfully submitted,
B. E. THOMPSON,
Chief Operator.
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