Abstract: A malfunction detecting system issues an alarm signal when a torque converter turbine speed measuring device is out of order.

Abstract: An apparatus for securing objects located in a room, in particular a (self-service) place of sale such as a supermarket, against theft. The objects to be secured are each equipped with at least one magnetically activatable sensor metal element. A first apparatus to be arranged at each room outlet generates a magnetic field, in the area of which field, the sensor metal element generates a signal when a field strength limit value is exceeded. A second apparatus associated with the first apparatus detects the signal and conducts it to an alarm apparatus, so as to trigger an alarm. The sensor metal elements are in each case configured so that in the active state they generate, in a region of the magnetic field in which the field strength is greater than a lower limit value, an atypical signal which is not generated by other metallic objects under magnetic excitation, but rather is only generated by a magnetizable object which has been purposefully subjected to a special treatment.

Abstract: A visual alarm device monitors the condition of a control and indication circuit and gives a distinct visual alarm upon detection of an abnormal condition in the monitored circuit. The device uses the indicator lights of the monitored circuit itself to give the visual alarm. The alarm device interconnects with the monitored circuit locally requiring no new cabling and remains in a passive state until an abnormal condition is detected. When the monitored circuit is rendered inoperative by a thermal overload trip, the alarm device becomes active to flash the indicator lights to provide a distinct visual alarm. Included in the device is a test switch, an appropriate voltage converter, an oscillator, and a power indication light.

Abstract: A wedge-shaped device for use as an alarm for detecting the unauthorized opening of a hinged, inwardly-opening door may be easily installed at the base of the door to resist forced opening of the door while simultaneously sounding a highly audible alarm signal indicative of an attempt to break in. The device uses a top chassis mounted on a bottom chassis to initiate the alarm whenever the top chassis is forced downwardly onto the bottom chassis, and the alarm will continue to sound until the device is reset. The device maintains its wedge shape even after the top chassis is forced down onto the bottom chassis, thereby effectively preventing the door from opening inwardly until the device is removed from its position at the base of the door.

Abstract: A portable alarm includes a light circuit having in series a normally closed first relay contact and a light, an alarm circuit having in series an impact switch and an alarm, a manual switch in series with each of the light circuit and the alarm circuit for activating the light circuit and setting the alarm circuit to a ready position, the impact switch being operable upon impact to turn the alarm on when the alarm circuit is in the ready position, an alarm maintenance circuit connected in series with the alarm circuit, a relay in series with the impact switch, the relay being operable to open the normally closed first relay contact and to activate the alarm maintenance circuit, and a power source for the light, alarm and alarm maintenance circuits.Once the portable alarm is set to the ready position a light goes on. A severe jolt to the pocket alarm and thus the impact switch turns the light off and activates an alarm. The alarm can only be switched off by using a recessed switch.

Abstract: A method and device for deterring unauthorized removal of a newborn from a defined area has a locking umbilical clamp with an attached identification mark and an attached triggering device capable of triggering a detection system upon removal of the umbilical clamp from the defined area and a wristband with an identification mark thereon corresponding to the identification mark on the umbilical clamp for attachment to the wrist of a person authorized to remove the newborn from the defined area.

Abstract: The present invention provides a hand held alarm device for personal use. The alarm device comprises a housing having an alarm circuitry contained therein and a activating switch located thereon. The housing has an attachment strap for releasably attaching the alarm device to the hand such that the activating switch is maintained in a positon to be within reach of the fingers, both during and after a fright response. In an aspect of the invention, the alarm device includes a deactivating switch physically separated from the activating switch for deactivating the alarm device.

Abstract: An electronic surveillance system includes a signal generator for generating a magnetic field, a signal receiver within the influence of the magnetic field, and a ferromagnetic marker adapted to pass in the field for detection. The signal received includes an arrangement for generating a non-rotating field at a first frequency, and a rotating field at a second frequency that is lower than the first frequency.

Abstract: To improve probability of detection in the early stages of fires, a fire alarm (1) with a temperature sensor (3) is proposed, having a structural member (12) that causes the sensor (3) to react only to temperature changes in the ambient air, and which change with a frequency of from 0.1 to 20 Hz. The fire alarm (1) becomes particularly insensitive to errors when there is a second fire sensor (7) that reacts to fire aerosol, there being a threshold value circuit (9) that lowers the threshold value for the fire aerosol sensor (7) when the temperature sensor (3) exceeds a preset threshold value.

Abstract: The present invention is a kit which contains components for an alarm screen assembly. The kit includes a screen mesh which is formed from a sheet of non-conductive screen material and a conductive wire which is mechanically coupled to the screen mesh. The screen mesh has marginal edge portions. The kit also includes a plurality of framing members and frame member-couplers. Each framing member is adapted to secure one of the marginal edge portions of the screen mesh thereto. The framing member-couplers couple the framing members together to form a frame which is to be mounted on a building enclosing structure. The kit further includes a container which includes a tubular member which has a first open end and a second open end. The tubular member is of a predetermined length and a predetermined diameter. The container also includes a first end cap and a second end cap. The first and second end caps are disposed at the first and second open ends of the tubular member, respectively.

Abstract: A ferromagnetic fiber has been fabricated that has particular use in the field of electronic article surveillance (EAS). The ferromagnetic fiber is produced by using a spinning disk type of device that engages a bath of molten alloy having the desired compositions for the fiber. The use of ferromagnetic fibers has resulted in the ability to produce EAS markers of such a small length that they can be dispensed using a commercial labeler.

Abstract: An infra-red remote personal alarm system consists of a portable transmitter unit (10) which is intended to be worn or to be manually carried by the user, and which is operable by the user at any particular location to transmit an alarm signal in an emergency and which is to be received by a central receiving station (41) so that appropriate action can be initiated in response thereto. The transmitter unit is electrically operable and includes means (15) for transmitting pulsed infra-red alarm signals which can be picked-up by an infra-red signal receiver at the location of the user, and then retransmitted as an oscillating electrical signal via direct wiring (38, 39, 40, 42, 43) to the central receiving station (41) as a warning signal indicative at location monitoring points (43, 44) of the location from which the emergency call has been made.

Abstract: A message spreading apparatus is disclosed to generate an audio message output in response to the presence of a heat radiation generated by body heat. A housing has a front wall provided with an opening therein and a rear wall including a first portion opposed to the opening of the front wall, with the front wall and the rear wall being spaced a predetermined distance from each other. A radiation reflecting member is mounted to the first portion of the rear wall and is configured and arranged so as to reflect a portion of a heat radiation ray entered through the opening of the front wall to a path which is between the front wall and the rear wall and is in a direction substantially parallel to the respective planes of the front and rear walls. A pyroelectric sensor is provided in the path to sense the reflected heat radiation ray and generate an activating signal in response to the reflected heat radiation ray.

Abstract: The present invention is a fiber optic security system for protecting expensive equipment from tampering or theft. The fiber optic security system comprises an emitter for generating signals, a detector connected to an alarm for monitoring the signals and a sensing coupler or photon switch of novel design which is easily mounted to each piece of equipment that requires protection without defacing the equipment. The sensing coupler mounts the tips of optical fiber ends in a position aligned along a single axis to allow light generated by the emitter to pass through. Any attempt to remove the sensing coupler causes the tips to be misaligned and the light to be deflected. This causes an optic path interrupt and causes the detector to trigger an alarm.

Abstract: An integrated alarm and access control system includes an access control package, an intrusion detection package and an interface unit. A position sensor determines if a door is open or closed and an electrically activated locking device locks the door in its closed position. A supervisory circuit provides line security. A door position relay and a first timer prevent an alarm signal from the supervisory circuit if the door is open and the egress device is actuated for a time period. A door control relay activates locking devices and a second timer responds to the door control relay, the egress device and the door position relay to give a prealarm signal. Fail-safe and fail-secure circuits are included.

Abstract: A method of detecting failure to tighten screws against works includes steps of detecting every screw tightening operation against a work after start of a screw tightening step, counting the number of times of the screw tightening operations detected in the previous step, detecting the completion of the screw tightening step, and comparing a counted value at the time of the completion of the screw tightening step with a predetermined value, thereby informing of a result of comparison.

Abstract: A contact detecting system in a machine tool, used in combination with a switch-contained touch sensor seared in a spindle of the machine tool having a movable stylus for making an usually closed switch open by moving itself due to contact with an object such as a workpiece to be detected, which can obtain an output from a sensor unit when the stylus is brought into contact with the workpiece.

Abstract: A plurality of electrostatic field proximity sensors are mounted upon a crane boom. The sensors are capacitive elements and include an antenna. The sensors are electrically connected in parallel with a single wire. A summing amplifier is coupled to the sensors for detecting changes in flux fields, which changes could signal a dangerous condition. The sensors can comprise an electrically insulating body having first and second ends with a conductive member attached to one of the ends. A mounting means is provided at the other one of the ends. A resistor can be electrically connected between the ends to discharge excess static charge and to allow detection of missing sensors.

Abstract: The location on an escalator where the handrail reenters the balustrade is provided with an electrical field projector which will establish a limited extent electrical field around the handrail reentry housing. The field is established with a pair of antennae disposed adjacent to the handrail reentry. The antennae are preferably connected to the main AC power source for the escalator, and can be angularly adjusted to focus the field that they project. Shrouds are positioned adjacent to each antenna to confine the lateral extent of the field. An object entering the field will cause a field disturbance which creates a signal setting off an audible alarm. Subsequent stopping of the escalator can ensue if the disturbance is not removed in a predetermined amount of time.

Abstract: A personal safety alarm and light device can be either worn by a user or releasably attached to a handbag or purse. The device provides both an audible and visual alarm that can be actuated in threatening or dangerous circumstances. In addition, it provides a steady source of illumination to function in a manner similar to a flashlight. It also has a light source that flashes and can be used when the device is worn by a jogger or a bicyclist to make the person more visible when that person exercises in diminished ambient light.