SU99A1 - Device closing the signal circuit when the temperature rises - Google Patents

Description

The proposed device is intended to receive signals about a temperature suddenly increased to the set limit in the rooms or apparatuses, in particular, to signal a fire that started at the moment of its occurrence.

The alarm system is based on the use of electrical energy and the effect of heat, whereby the heat determines the moment of signal supply by closing an electrically conductive circuit when rising to the temperature set in advance on the device, and the electric current performs the signal itself by means of a bell, siren or other method.

FIG. 1 shows a general view of the device, and FIG. 2 - cut it.

The device consists of a hollow cylinder A, having a bottom with a hole into which the valve is screwed, consisting of a sleeve B with a hanger and a plug B with through channels. With the help of a thread the cork is screwed into the coupling a plate made of asbestos cardboard M or another air-permeable substance is clamped between the cork and the hanger of the coupling. Inside the cylinder A, a radiator D, D consisting of lamellar rings is inserted. With

1 using a flange covered with an elastic 1 lid - membrane D, a cylinder attached to a board E, having a recess in which the larva / f is fastened (with set screw N. A contact spring 3 is attached to the center i of the membrane 3. Cylinder flange is connected by I wire / С with boron .7, and the larva with a wire / vl connected with boron. T. The radiator -G, G has the purpose to quickly transmit a sudden temperature rise to the air contained in cylinder A; with normal, slow 1 changes of the outside temperature, the control valve J5B allows auto math to balance the pressure i inside and outside the cylinder, thereby eliminating the possibility of false signals.

To receive a fire alarm, the device is installed in a building near the ceiling or roof and is connected with wires to a battery or other source: a current loop and a signaling device; for example, by an electric bell, a siren, etc., the latter is set to j in the place where they want to receive a signal, for example, in the guard's room, dei zhurnogo, etc. As directed by the author.

if a fire develops in any part of the building, heated up, collected in the upper part of the room, reaches a signaling device, touches the walls of the cylinder and through the walls and the radiator heat is transferred to air or gas inside the cylinder A, due to which the air in it rapidly expands, it presses on the diaphragm D, as a result of which the contact spring 3 touches the end of the set screw I, the circuit closes and the electric current gives a signal; the alarm device will sound all the time until the room temperature rises. In the building you can install several signaling devices in different places, including them in the circuit in parallel. If the installation of signaling devices in different buildings with a signal in one place is required, a number plate is inserted in the circuit, indicating the place of the fire.

I The instrument is calibrated by means of a screw I, preliminarily introducing the instrument with a thermometer at the appropriate temperature; by moving the adjusting screw to contact with the contact spring, with the temperature indicated by the thermometer, set the sensitivity of the device to this temperature.

SUBJECT OF INVENTION.

A device that automatically closes an electrical signal circuit when temperature is extracted, acting by expanding air or other gas placed in a closed and equipped with an elastic membrane with a contact tank, characterized in that radiator D is placed inside tank A and tank A is equipped with an adjusting valve I. BV.

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