Delayed signal watchman's tour supervisory system
First Claim
1. A delayed signal watchman'"'"'s tour supervisory system including a plurality of spaced watchman'"'"'s stations each embodying a switch, a plurality of relays each connected to be operated by the operation of one of said switches, contacts on said relays for connecting the switches in the watchman'"'"'s stations in sequence, a switch connected to a power source for supplying energizing power to the watchman'"'"'s stations and relays means connected to said energizing switch and a monitoring station whereby upon initial operation of the energizing switch a signal in the monitoring station will be energized to indicate that the watchman is at his post, a visible signal connected to said power controlling switch and energized when the power controlling switch is turned on, timing means connected in the circuit to said visible signal to control each time period of energization of the visible signal to indicate to the watchman that he has a limited time period before operating the first of said signalling stations, an audible signal connected on the circuit to said visible signal, and means actuated by said timing means to energize said audible signal in the event the watchman has not operated the first of the series of signalling stations at such time, means operated by said timing means and connected in the control circuit to deenergize said audible means upon the operation of the first of said watchman'"'"'s stations.
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Accused Products
Abstract
A plurality of watch stations are installed in protected premises that must be tripped in proper sequence once each hour and embodies means whereby when the watchman comes on duty and starts his rounds of duty, a signal will be transmitted to the central station and when he has completed the rounds of stations a second signal will be transmitted to the central station indicating that all is well. In the event the proper sequence of operation of the watchman'"'"'s stations is broken, an alarm will be indicated in the central station. Thus the central station receives only two signals regardless of the number of stations on the watchman'"'"'s route unless there is something wrong with the watchman and he is in need of help. The present system is designed to prevent tampering with the system, to prevent the system being turned off prior to the end of the watchman'"'"'s tour of duty, and to permit the watchman to signal for outside help from anyone of the stations on his tour.
The signalling system further includes a timer controlled visible signal ignited when the watchman comes on the job and turns on the system and which visible signal is turned on after the watchman has operated the last signal box in the system to indicate the interval of time until the watchman must start his tour of the signal boxes, together with an audible signal controlled by the timer which is energized in the event the watchman does not start his tour of the signal boxes when the visible signal is extinguished.
11 Citations
8 Claims
- 1. A delayed signal watchman'"'"'s tour supervisory system including a plurality of spaced watchman'"'"'s stations each embodying a switch, a plurality of relays each connected to be operated by the operation of one of said switches, contacts on said relays for connecting the switches in the watchman'"'"'s stations in sequence, a switch connected to a power source for supplying energizing power to the watchman'"'"'s stations and relays means connected to said energizing switch and a monitoring station whereby upon initial operation of the energizing switch a signal in the monitoring station will be energized to indicate that the watchman is at his post, a visible signal connected to said power controlling switch and energized when the power controlling switch is turned on, timing means connected in the circuit to said visible signal to control each time period of energization of the visible signal to indicate to the watchman that he has a limited time period before operating the first of said signalling stations, an audible signal connected on the circuit to said visible signal, and means actuated by said timing means to energize said audible signal in the event the watchman has not operated the first of the series of signalling stations at such time, means operated by said timing means and connected in the control circuit to deenergize said audible means upon the operation of the first of said watchman'"'"'s stations.
- 5. A delayed signal watchman'"'"'s tour supervisory system including a plurality of spaced watchman'"'"'s signal indicating stations, each of said stations including a switch, a relay connected to said switch and to said central monitoring station, a series of cams each controlling operation of the relays, independent means operated by each cam when the watchman'"'"'s station'"'"'s switches are operated in proper sequence to disconnect each relay with the monitoring station, no signals will be transmitted to the monitoring station, in the event the stations are operated out of sequence said cams will operate the relay of the station operated out of sequence to connect the relay to the central station and transmit an alarm signal to the central monitoring station.
Specification