DE386493C - A heat regulator responding to the displays of a contact thermometer in the room to be heated for adjusting the radiator valves by means of electromagnets - Google Patents

Description

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4 EXCESSED
FiI W DECESTER 1923

REICH PATENT OFFICE

PATENT LETTERING

- M 386493 ^
CLASS 36f GROUP 5

Emil Dochnahl in Veiten b. Berlin.

The invention relates to a thermal regulator for collective heating, in which the radiator valves are operated by electromagnets accordingly the displays of a contact thermometer installed in the room to be heated will.

The invention lies in the fact that in the glass tube the thermometer's electrical power line connections are admitted through

to the ascending mercury column are connected to one another in a current-closing manner. The mercury column is broken down into several parts by inserting insulating plates, wherein the upper part has such a length that it has two power connections to each other can connect while the other parts so be kept short so that a current connection does not occur. Be beneficial in the Mercury glass tube provided three power connections, taking when the mercury rises moved by the current circuit of the solenoid controlling the lever mechanism is, while when the mercury column falls after disconnecting the first power connection the power line is electrically connected to the other power connection, whereby the excitation of a second electromagnet takes place in one of the armature of the first magnet locking lever triggers, so that this under the action of a spring from Magnet is driven off and the radiator valve opens again through the lever mechanism. On the electromagnet that controls the lever mechanism is a spring-loaded U-shaped which can swing around an axis Lever arranged, the upper end of which carries a line contact terminal isolated while the end of the lower leg slides on the wall of the anchor and when standing up Anchor. Reaches under the bottom of the anchor and thereby locks it; by the rotation of the lever caused by this, is at the same time the line connection of the upper, lever arm interrupted. A contact lever is swingably arranged on the armature lever linkage. that of the upright armature · a line connection for the second electromagnet so that after the mercury has fallen again and the Stromverbinduiig has produced for the second electromagnet, this is excited, hence the The armature of this magnet is hinged to it by a connecting rod U-lever pulls back and with it the blocking of the armature of the first electromagnet lifts, this is removed again by the electromagnet under the action of a spring and the central heating tap through the lever mechanism open, but at the same time the line connection for the first magnet v / iecler manufactured and the line connection separated again for the second electromagnet.

In the drawing, the invention is shown schematically in one embodiment.

The thermometer α is graduated in half degrees, for those of the room temperature

COPY

appropriate heat levels, for example from II to 16 °. The glass tube b c for the mercury column is constructed so thin that a degree from the other at least S ¹ J ₂ to _^3/4 cm away. At 13 ¹ ^ * 4 and 14 ¹ / ^»0 is b in the glass tube depending f a line connecting wire, d, embedded c whose coefficient of expansion is close to that of glass and cut their tips with the inside of the glass tubes l · smooth, so that the Mercury can rise and fall freely, but still comes into contact with the tip surfaces of the lead connecting wires f. D, c. The upper part of the mercury column c, about 5 cm long, is divided into short partial columns by well-fitted particles h of insulating material, each of which is no longer than 3 mm. Only the top sub-column i is at least 3 mm longer than the distance between the half-degree graduations of the thermometer, so that it can establish a line connection between the line connecting wires d, f or d _} e .

In the drawing, the device is shown with the radiator tap k open. The normal room temperature is assumed ^{to be 14 ° C.} If the mercury now rises higher due to further heating of the room to be heated, a current-conducting connection is established between d and e through the mercury column i , i.e. the one already routed around the electromagnet I , coming from the power source m and isolated by an on the lever ν ' Attached line contact spring η going positive current comes with the negative line in connection, so that the electromagnet I is excited. The armature ο is tightened against the provided spring ρ and the radiator valve h is closed by the lever linkage q attached to the armature 0 and connected to the cock k. At the same time, a contact lever r articulated to the lever linkage q establishes a current line with the contact plate s . The U-shaped double lever ν , sliding with its lower end t on the armature wall 0 and rotatable about an axis u, engages under the armature 0 under the action of a spring w and locks it. As a result of the successful rotation of the lever σ 5a, the spring η is lifted from the magnet I and the power line ^{1 is} interrupted, so that the electromagnet / becomes ineffective. The armature 0 cannot go back under the pressure of the spring, however, since the end of the lever t is still blocking for the time being. If the thermometer continues to drop, a connection is established between the stem connections d and / "through the mercury column i . The current is now closed via a second electromagnet .r; whose armature α , which is provided with a connecting rod y , is connected to the spring force κ / retracts the levers, so that when η restored, the line connection, while also the blocking of the ¹ anchor 0 by the lever end t is canceled. the anchor 0 wind now pushed back under the pressure of the spring ^> and-the central heating tap k is opened again with the help of the lever linkage q . At the same time, the line connection r is disconnected, s. Now the whole process can be repeated.

It is of great advantage to let a larger number of connecting wires into the glass tube b , which are connected to the power lines in each case, so that it is possible to set the heat regulator to various desired room temperatures.

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Claims (3)

Patent Claims: i. Heat regulator responding to the displays of a coritact thermometer in the room to be heated for adjusting the radiator valves by means of electromagnets, characterized in that the mercury column (c) of the thermometer is divided into several superimposed parts by insulating plates Qi) ^: of which only the upper one (i) is so long that it covers two of the three contacts inserted one above the other (f _} d-, e) and thus either the one (via d, e ) leading to the »closing magnet (I) or the one (via d, f) to the switching magnet (λγ) leading circuit closes, 2. Heat regulator according to claim 1, characterized in that the armature (0) of the closing magnet (T ) carries a contact lever O) which, when the armature is tightened, • 1. H. Closed radiator valve with contact (.s ^s ) closes the switching circuit leading from the thermometer contact ((/) via the switching magnet (x) to the thermometer contact (f). 3. Heat regulator according to claim 1 and 2, characterized in that the armature (s) of the Schaltmagnctcn (.v) engages a U-shaped rocker arm (v) whose lower arm (f) the armature (0) of the closing magnet in its The retracted position blocks, while the upper arm influences a contact spring (n \ in the closing circuit (d _} I ₁ e) . 1 sheet of drawings. BFRlJN. r.EDBUCKT TN THE