DE1237515B - Control unit for the gas supply of gas lights, especially for street lighting - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

F23q

German class: 4d-16

Number: 1237 515

File number: G 42426 X / 4 d

Filing date: December 30, 1964

Open date: March 30, 1967

The invention relates to a control device for supplying gas to gas lights, in particular for street lighting.

The control of the gas supply of gas street lights for switching the street lights on and off is usually caused by a pressure wave in the gas supply network. This creates a membrane switch on the individual lights actuated, which releases the gas supply with one switching operation and with the next switching operation locks again.

As a result of the constantly increasing gas consumption, the capacities of those working with low pressure Supply networks more and more fully utilized up to the highest possible pressure of 500 mm WS so that no more pressure wave can be given.

The invention is based on the object of providing a control device of the type mentioned at the beginning create that makes it possible to assign a control device to each gas street light, which controls the gas supply Releases set times and blocks again or sets a throttled gas supply. At sea mark it is known per se to assign a control device to each gas-fed light source. The invention is that a timer is provided with adjustable contacts that are in a circuit a capacitor lying in series with a motor of a switching mechanism are switched on, as well as the is permanently connected to a power source via a high resistance.

The subclaims 2 to 6 relate to further developments of the subject matter of claim 1.

The drawing illustrates an embodiment of the invention. It shows

F i g. 1 a schematic representation of the time switch,

F i g. 2 shows a vertical section of a time switch, FIG. 3 the circuit diagram of the control unit.

The control unit contains a timer 1, of which in FIG. 1 only the one designed as a contact arm 2 Pointer can be seen, which is provided at its end with a contact roller 3 (see. Fig. 2). Of the Contact arm 2 is attached to a socket 4 which is shown in FIG. 2 pulled out of the housing plate 5 of the timer is shown. The clockwork of the time switch is not shown, as these time switches are known are. The timer can be driven by a stick battery, which has a service life of approx a year.

The contact arm 2 revolves once every 24 hours, so that it can control the gas supply from gas lamps below the contact roller 3,
especially for street lighting

Applicant:

Society for Promotion
the gas lighting e. V.,
Dortmund-Aplerbeck, Schüruferstr. 314

Circle arranged contact pins 6 happened once in 24 hours.
In Fig. 1 there are three places ^ l ₁ , A ₂ , A _z for switching on the gas lamp in the evening; In addition, a point B for throttling the gas light to the midnight economy circuit and three points C ₁ , C ₂ , C ₃ for switching off the light in the morning are provided. A contact pin 6 is only inserted at one point _{A 1} , A ₂ , C ₁ , C ₂ , C _{3, see above}

A _s or

that the contact arm 2 slides over three contact pins 6 once within 24 hours. Of course, it is possible to provide more than three points A or C in order to achieve a more precise adaptation of the switching points to the respective beginning or end of darkness. The contacts 6 of the timer are on the one hand connected to the positive pole of a battery D via a high resistance. On the other hand, they are connected to the negative pole of the battery via the MotorSW of a switching mechanism and further via a capacitor K!). The contact arm 2 of the timer is also connected to the circuit between the capacitor and the negative pole of the battery D.
The battery D can be a conventional stick battery of about 9 volts, which, given the low load present here, also has a service life of about one year.

The operation of the control unit is as follows: A contact pin 6 is inserted at each point _{A v} B and C _{3 of the timer.} Before the contact arm 2 reaches the contact point ₁ , the capacitor K is continuously charged to the battery voltage (about 9 volts) via the high resistance R and the motor SW. As soon as the contact arm 2 then reaches the contact point A ₁ , the circuit between the capacitor K and the motor SW is closed, since the contact pin 6 at the point ^ t _{1 is} connected to the positive terminal of the motor SW and the contact arm 2 is connected to the negative assignment of the capacitor K. is. The capacitor K is thus discharged and causes the motor SW to rotate. It will be around for

709 547/45

Claims (2)

The duration of 3 seconds generates a torque of about 200 pond centimeters. The MotorSW forms part of a switching mechanism, not shown, which executes a switching movement each time the motor is started. For this purpose, the switching mechanism can be provided in a known manner with a ratchet drive and actuate a valve disc with holes for the gas passage. Each time the motor SW is started, it is switched to a larger or smaller passage of the valve disk at contact points A and B, while at contact points C a full part of the valve disk is switched. Accordingly, the gas supply to the gas lamp is released as soon as the contact arm 2 according to FIG. 3 touches the contact point ^. If the contact arm 2 reaches contact point B around midnight, the capacitor K is recharged via the high resistance R and can restart the motor SW when the contact point B is touched, so that the gas lamp can be economized through a smaller opening in the valve disc is set. During the movement of the contact arm 2 to the contact point C3, the capacitor K is charged again, and as soon as the contact arm arrives at the contact point C3, the valve disc is rotated further, a full part of which shuts off the gas supply. While the contact arm 2 closes the circuit at the contact points ^, B and C, not only is the capacitor discharged, but current continues to flow from the battery!) Through the resistor, now through the contact arm 2. This current is not greater than the average charging current of the capacitor. Patent claims: 1. Control device for the gas supply of gas lights, especially for street lighting, characterized in that a timer (1) with adjustable contacts (A ₁ , A ₂ , A _z and C ₁ , C ₂ , C ₃ ) is provided in one Circuit of a capacitor (K) lying in series with a motor (SW) of a switching mechanism, which is also permanently connected to a current source (D) via a high resistance (R) . 2. Control device according to claim 1, characterized in that the switching mechanism is known per se Every time the motor is started up, a valve disc with openings advances step by step by an angle value. 3. Control device according to claim 1 or 2, characterized in that the timer has an additional contact (B) and the valve disc have an additional opening for midnight economy circuit. 4. Control device according to one of claims 1 to 3, characterized in that the contact arm (2) of the electrical timer (1) is provided with a contact roller (3) . 5. Control device according to one of claims 1 to 4, characterized in that the timer and Motor of the rear derailleur are each connected to a battery. 6. Control device according to one of claims 1 to 5, characterized in that it is outside of the hot luminaire part, for example on or in the luminaire mast, is attached. Considered publications:
German interpretative document No. 1 008 675. 1 sheet of drawings 709 547/45 3.67 © Bundesdruckerei Berlin