DE309315C

DE309315C -

Info

Publication number: DE309315C
Application number: DENDAT309315D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 21c. GRUPPECLASS 21c. GROUP

ERIK ARTUR FAGERLUND in STOCKHOLM.ERIK ARTUR FAGERLUND in STOCKHOLM.

Zeitschalter. Patentiert im Deutschen Reiche vom 22. Juni 1916 ab.Time switch. Patented in the German Empire on June 22, 1916.

Die Erfindung bezieht sich auf Zeitschalter, die aus einem mit zwei miteinander durch eine enge Öffnung, ein Ventil o. dgl. in Verbindung stehenden Räumen versehenen Flüssigkeitsbehälter bestehen und bei welchen die Zeitkonstante des Schalters durch die Überströmung eines Teiles der Flüssigkeit von dem einen zum andern Räume bestimmt wird Zeitschalter dieser Art sind bekannt, bei denen die Scheidewand zwischen diesen Räumen beweglich angeordnet ist, so daß die Strömung der Flüssigkeit durch die Bewegung der Scheidewand : bewirkt wird. Auch Zeitschalter mit beweglichen Außenwänden sind bekannt, bei welchen diese Wände als Kolben oder Balg ausgebildet sind. Gemäß vorliegender Erfindung ist die Scheidewand fest angeordnet, während einer der Räume oder beide nach außen durch eine federnde Membran abgeschlossen sind, wobei die Strömung durch einen auf die Membran ausgeübten Druck herbeigeführt wird. Diese Anordnung ermöglicht eine erhebliche Vereinfachung des Apparates und erübrigt Durchführungsdichtungen für Kolbenstange o. dgl., so daß der Apparat mit allseitig haltbaren Wänden ganz dicht nach außen abgeschlossen werden kann und dadurch eine konstante Wirkungsdauer ohne notwendige Überwachung des Zeitschalters erreicht wird.The invention relates to time switches that consist of one with two with each other a narrow opening, a valve or the like. Communicating spaces provided liquid container exist and in which the time constant of the switch by the overflow of part of the liquid from the time switch is determined from one room to the other of this type are known in which the partition between these spaces is movable is arranged so that the flow of liquid through the movement of the septum : is effected. Time switches with movable outer walls are also known at which these walls are designed as pistons or bellows. According to the present invention the septum is fixed while following one of the rooms or both are closed on the outside by a resilient membrane, the flow being caused by a pressure exerted on the membrane is brought about. This arrangement enables a considerable simplification of the apparatus and eliminates the need for grommets for the piston rod or the like, so that the apparatus with walls that are durable on all sides, it can be closed off very tightly to the outside and thereby a constant duration of action is achieved without the need to monitor the time switch.

Ein Zeitschalter gemäß der Erfindung kann innerhalb vieler Gebiete der Technik Anwendung finden. Er ist in erster Linie zum Gebrauch als elektrischer Zeitschalter, und zwar insbesondere als Treppenschalter zum selbsttätigen Abschalten von Beleuchtungsstromkreisen nach gewisser Zeit, bestimmt. Er kann aber auch als Verzögerungsvorrichtung zur Regelung mechanischer Vorgänge, z. B. beim periodischen Arbeiten von Maschinen, mannigfaltig verwendet werden.A time switch according to the invention can be used in many fields of technology Find. It is primarily intended for use as an electrical timer, namely especially as a stair switch to automatically switch off lighting circuits after a while, definitely. But it can also be used as a delay device Control of mechanical processes, e.g. B. in the periodic work of machines, manifold be used.

In der Zeichnung sind drei verschiedene Ausführungsformen der Erfindung entsprechend den Fig. 1, 2 und 3 veranschaulicht.In the drawing, three different embodiments of the invention are corresponding Figs. 1, 2 and 3 illustrated.

Bei der Ausführungsform nach Fig. 1 sind mit α und b die beiden mit Flüssigkeit gefüllten Räume bezeichnet, die einerseits durch den zylindrischen Mantel c bzw. die gemeinsame Scheidewand d, andererseits durch die gewellte Membran β bzw. die feste Wand f abgegrenzt sind. In der Scheidewand d ist ein Kanal g angebracht, in dem ein Rückschlagventil g in irgendeiner bekannten Form vorgesehen ist, das dazu dient, einen schnellen Übergang der Flüssigkeit vom Räume α nach b und langsamen Rückfluß in umgekehrter Riehtung zu sichern, und durch das auch die Querschnittsöffnung des Kanals geregelt werden kann, i ist eine mit dem Raum b in Verbindung stehende Luftglocke, k ein an der Membran e sitzender Druckknopf.In the embodiment according to FIG. 1, the two liquid-filled spaces are designated by α and b, which are delimited on the one hand by the cylindrical jacket c or the common partition d, on the other hand by the corrugated membrane β and the solid wall f. In the partition d a channel g is provided, in which a check valve g is provided in any known form, which serves to ensure a rapid transition of the liquid from space α to b and slow reflux in the opposite direction, and through which the Cross-sectional opening of the channel can be regulated, i is an air bell connected to space b , k is a push button seated on membrane e.

Wenn man auf diesen Knopf drückt, so strömt die Flüssigkeit schnell von dem Raum a nach dem Raum δ und wird von hier in die Luftglocke i gepreßt. Läßt man den Knopf k If you press this button, the liquid flows quickly from the space a to the space δ and is pressed from here into the air bell i. If you leave the button k

Claims

go, the membrane e tries to resume its original position. For this, however, a certain time is required, which is dependent on the flow rate of the liquid through the valve h of the channel g. The button k can thus be brought into mechanical or electrical connection with an organ which comes into operation for a certain time after the button has been actuated when the membrane returns to its rest position. The button can be pressed in either by hand or by electrical means or in any other suitable manner. If you use a simple regulating screw h instead of the check valve, you will have to forego the one-sided rapid flow of the liquid from α to δ. The check valve, on the other hand, allows the membrane β to move rapidly inward, while the return flow of the liquid from the space δ to the space α can only take place through the narrow opening that the check valve allows. The air bell i can also be omitted if the wall f is designed as a resilient membrane in the same way as c. Such an embodiment is shown in FIG. 2, in which the device is electrically operated. At I, an arm m is articulated, which rests against the push button k and whose lower free end can oscillate between two contacts η and 0. The arm m is attracted by the electromagnet p when a current flows through its coil. The contacts η and 0 are connected in a suitable manner to a device through which a current is to flow. Of course, any organ which is to be switched or otherwise operated can also be mechanically influenced by the arm m. In the embodiment according to FIG. 3, there is no opening in the partition wall d. Here, rather, the flow channel for the liquid is arranged between the two spaces outside the cylindrical shell c, and that it leads to a special valve housing r in which the valve s formed as a check valve is located. The valve is expediently suspended from a membrane t in such a way that there is little clearance between the valve s and its seat. The position of the valve spindle u can be regulated by means of a screw ν. The mode of operation of the embodiment illustrated in FIG. 3 and the means for bringing about the effect can be of various types, just as in the embodiment shown in FIG. 1. Thus, in a manner similar to the embodiment according to FIG. 2, the operation of the operation can take place by electrical means and transferred mechanically or electrically to the organ to be operated in a suitable manner. Sponsorship τ claims:

1. Time switch for controlling mechanical or electrical processes, consisting of two spaces containing a liquid, which are in communication with one another through a narrow opening, a valve or the like, characterized in that the spaces (a, b) are separated by a solid partition ( d) are separated, while one of the spaces (a) is closed off from the outside by a resilient membrane (e) , through the movement of which the liquid can be driven from one space into the other.

2. Time switch according to claim i, characterized in that the second space (δ) is also closed to the outside by a resilient membrane (f) which allows an increase or decrease in its volume.

3. Time switch according to claim 1 and 2, characterized in that the two spaces (a, b) form two compartments of an outwardly hermetically sealed vessel.

4. Time switch according to claim 1, characterized in that the one space (a) is closed by a resilient membrane, while the other space (δ) is in communication with an air or gas containing, to the outside airtight spaces (i).

For this purpose ι sheet of drawings.