Burglar alarm
First Claim
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1. An alarm system by which unauthorized entrance through a closure means into an enclosure causes a first telephone to dial a second telephone comprising:
- a first switch means (34) for connection to a closure means so that movement of the closure means activates said first switch means;
a motor-driven switch actuator (10), a first telephone (6), a second telephone (44), means forming an automatic dialing apparatus by which a predetermined telephone number can be dialed;
circuit means connecting said automatic dialing apparatus to said first telephone;
means, including a call switch on said automatic dialing apparatus, by which said first telephone will dial said second telephone when said call switch is activated;
circuit means connected to said first switch means for causing said motor of said motor-driven switch actuator to be energized upon movement of the closure means to which said first switch is connected;
means by which said motor-driven switch actuator is positioned respective to said automatic dialing apparatus so that said call switch is actuated when said motor-driven switch actuator is energized;
said motor-driven switch actuator being a motor-driven reduction gear assembly having an output shaft, a cam affixed to said shaft, said cam being arranged respective to said motor-driven reduction gear assembly, shaft and call switch, so that rotation of said shaft causes said cam to engage and actuate said call switch.
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Abstract
An alarm system having means by which unauthorized entrance into an enclosure activates mechanical apparatus which dials a second telephone from a first telephone, thereby informing whomever might be present at the second telephone that a particular location is being burglarized.
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Citations
3 Claims
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1. An alarm system by which unauthorized entrance through a closure means into an enclosure causes a first telephone to dial a second telephone comprising:
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a first switch means (34) for connection to a closure means so that movement of the closure means activates said first switch means; a motor-driven switch actuator (10), a first telephone (6), a second telephone (44), means forming an automatic dialing apparatus by which a predetermined telephone number can be dialed; circuit means connecting said automatic dialing apparatus to said first telephone;
means, including a call switch on said automatic dialing apparatus, by which said first telephone will dial said second telephone when said call switch is activated;circuit means connected to said first switch means for causing said motor of said motor-driven switch actuator to be energized upon movement of the closure means to which said first switch is connected; means by which said motor-driven switch actuator is positioned respective to said automatic dialing apparatus so that said call switch is actuated when said motor-driven switch actuator is energized; said motor-driven switch actuator being a motor-driven reduction gear assembly having an output shaft, a cam affixed to said shaft, said cam being arranged respective to said motor-driven reduction gear assembly, shaft and call switch, so that rotation of said shaft causes said cam to engage and actuate said call switch. - View Dependent Claims (2, 3)
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Specification