Obviously any prankster would be utterly dissuaded by an ear-shattering siren.
.Fire Box Foils False Alarms
A NEW type of fire alarm box, equipped with an ear-shattering siren that sets up a wail audible for blocks (much to the discomfiture of anyone using it unlawfully) made its debut recently at the Fire Chiefs’ annual convention in Washington.
The photo shows Sergeant Clarence Quick pointing to the siren.
.Pay-Roll Holdup Alarm Works Three Ways
Equipped with a built-in siren audible a mile away, a carrying case for bank messengers, pay-roll carriers, and others who transport valuables from place to place, has three separate switch connections to set the electric alarm for various conditions. One switch, when set, causes the alarm to sound whenever a messenger releases his hold on the bag handle. A second, used when the bag is carried in an automobile, causes the siren to sound when the case is lifted from the floor. A third actuates a timing device, making the alarm go off automatically if the bag is left unattended for a stated period.
.Camera Fan Lays Trap for Thief
Set a camera to catch a thief. That is the revised version of the old proverb which Joseph Marques, of Plymouth, Mass., used to trap a “phantom burglar” who had eluded police in fifteen robberies. An amateur photographer employed by a local theater, Marques rigged up a homemade camera trap and placed it in the office of the theater. As soon as the burglar forced a window and vaulted into the room, the mechanical sleuth went into action. In quick succession, a buzzer sounded, causing the thief to look in the direc^ tion of the camera; a magnet flipped open the shutter; and a relay set off photoflash bulbs. A bell frightened the intruder away before he could locate the camera. So clear was the resulting photograph that, within a few hours, the police announced the capture of the burglar.
This is an awesome idea. When someone pulls the fire alarm, we’re going to handcuff them to that very spot. If they were stupid enough to pull a fire alarm some place close to, you know, a fire, well that’s their own fault.
.Fire Box Traps Pranksters
THE sending of false fire alarms by mischievous persons may be eliminated through use of a newly developed call box. To use the device, the sender of an alarm must pass a hand through a special compartment to reach the signal dial. Once the dial has been turned, the sender’s hand is locked in the compartment until released by a fireman or policeman with a key.
