DE81548A

DE81548A -

Info

Publication number: DE81548A
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLAvSSE 21: Elektrische Apparate.KLAvSSE 21: Electrical Apparatus.

Patentirt im Deutschen Reiche vom 5. Januar 1895 ab.Patented in the German Empire on January 5th, 1895.

Der vorliegende Regelungswiderstand hat gleich seinen Vorgängern den Zweck, den Widerstand in einer elektrischen Leitung ohne Unterbrechung derselben durch Einschaltung einer gröfseren oder geringeren Strecke eines Widerstandsdrahtes, z. B. Neusilberdraht, zu verändern. Die bequem zu handhabende Vorrichtung zeichnet sich dadurch aus, dafs in einem v.erhältnifsmäfsig kleinen Räume eine grofse Länge des Widerstandsdrahtes untergebracht ist, der Widerstand in der Leitung also innerhalb weit gezogener Grenzen verändert werden kann.The purpose of the present control resistor, like its predecessors, is the resistor in an electrical line without interruption of the same by switching on a greater or lesser length of a resistance wire, e.g. B. German silver wire to change. The device, which is easy to use, is characterized by the fact that in a relatively small space there is a large length of the resistance wire is accommodated, the resistance in the line can therefore be changed within wide limits.

Auf beiliegender Zeichnung stellt' zunächst Fig. ι den Längenschnitt einer Ausführungsform des Regelungswiderstandes dar, wie sie zu Versuchszwecken, mit geringen baulichen Abänderungen auch zu praktischen Zwecken geeignet sein würde. A stellt einen in der Hauptsache cylindrisch abgedrehten Körper aus Holz oder anderem nicht leitenden Stoff dar. In diesen Körper ist eine schraubengangartig verlaufende Rinne halbrunden Oberschnitts eingedreht. Der Widerstandsdraht, welcher bei diesem Regelungswiderstand verwendet werden soll, wird zunächst zu einer nicht allzu dicht gewundenen Drahtschraube gewickelt, welche in die Rinne auf A gelegt wird, so dafs der Draht mit A eine Schraubenspindel bildet, deren Gänge b halbrund hervortreten. Das Ende von b wird an A in geeigneter Weise befestigt. Es dürfen sich weder die Schraubengänge, noch die einzelnen Drahtwindungen unter einander berühren. In A ist achsial ein Metallstab c eingesetzt, an welchem sich oben die eine Polklemme d befindet. Die andereIn the accompanying drawing, FIG. 1 first shows the longitudinal section of an embodiment of the regulating resistor, as it would be suitable for experimental purposes, with minor structural modifications, also for practical purposes. A represents a mainly cylindrically twisted body made of wood or other non-conductive material. A helical groove with a semicircular top section is screwed into this body. The resistance wire, which is to be used with this regulating resistor, is first wound into a not too tightly wound wire screw, which is placed in the groove on A , so that the wire with A forms a screw spindle, the turns b of which protrude semicircular. The end of b is attached to A in a suitable manner. Neither the screw threads nor the individual wire windings may touch one another. A metal rod c is axially inserted in A, on which one pole terminal d is located at the top. The other

Führung, liebiger Polklemme / steht mit dem unteren Ende des Drahtes in leitender Verbindung, c dient nun der Nabe e des Stromschlufskörpers E als durch welchen der Strom an be-Stelle von b abgenommen werden kann. E kann ein Bügel sein, dessen Schenkel rinnenförmige Blechstücke tragen, welche Theile eines Muttergewindes für b darstellen. Zweckmäfsiger ist jedoch · die der Zeichnung zu Grunde gelegte Ausführung des Stromschlufskörpers, bei welcher der letztere eine geschlossene Blechkapsel bildet, welche an ihrem unteren Rand eingezogen und derart gestaltet ist, dafs das über einen Schraubengang reichende Muttergewinde e¹ entsteht. Vermöge dieses Muttergewindes kann E bei gelöster Klemmschraube e² auf b auf- und niedergeschraubt werden. Durch die Klemmschraube e¹ kann eine Feststellung des Stromschlufskörpers an beliebiger Stelle erfolgen.Leadership, dear pole terminal / is in conductive connection with the lower end of the wire, c now serves as the hub e of the current loop body E through which the current can be drawn from b at be point. E can be a bracket, the legs of which carry channel-shaped pieces of sheet metal, which represent parts of a female thread for b . However, the design of the current circuit body on which the drawing is based is more expedient, in which the latter forms a closed sheet metal capsule, which is drawn in at its lower edge and is designed in such a way that the nut thread e ¹ , which extends over a screw thread, is created. By virtue of this nut thread, E can be screwed up and down on b with the clamping screw e ^{2 loosened.} The clamping screw e ¹ can be used to fix the circuit body at any point.

Nehmen wir an, der Strom werde bei/ zu- und bei d abgeleitet, so wird er seinen Weg zunächst durch die freiliegenden Schraubengänge b, dann durch e¹, E₁ e, c und d nehmen. Je weiter E herabgeschraubt ist, desto eher wird der Strom von dem schlechten Leiter b auf den guten Leiter E übergehen können, desto kleiner wird der Widerstand in der Leitung sein. Beim Heraufschrauben von E wächst der Widerstand mit der Strecke von b, welche der Strom vor seinem Uebertritt nach E durchfliefsen mufs. Da nun ein jeder Umgang der Drahtschraube aus einer grofsen Anzahl von Drahtwindungen besteht, so folgt, dafs selbst bei verhältnifsmäfsig geringem Durchmesser von A schon wenige UmdrehungenLet us assume that the current is supplied at / and diverted at d , it will first take its way through the exposed screw threads b, then through e ¹ , E ₁ e, c and d . The further E is screwed down, the sooner the current will be able to pass from the bad conductor b to the good conductor E , the lower the resistance in the line will be. When E is screwed up, the resistance increases with the distance of b, which the current has to flow through before it passes to E. Since every turn of the wire screw consists of a large number of turns of wire, it follows that even if the diameter of A is relatively small, only a few turns

Claims

of E produce a considerable change in resistance. The compact, handy shape of the device allows it to be used to regulate the light intensity of individual incandescent lamps. An embodiment suitable for this purpose is illustrated in FIG. 2 of the drawing in longitudinal section. The Edison lamp G is screwed with its socket F into a capsule E1, which corresponds essentially to the capsule E according to FIG. One pole of the filament is conductively connected to the metal holder F so that the current can be transmitted through E1. E1 grinds with the nut thread e1 on the screw threads b of the resistance wire, which, as in the previous embodiment, is wound around a cylindrical core. This core A1 is expediently surrounded by a capsule A to protect the wire screw. At f, one pole of the supply connects to the end of the resistance wire; management to. The other pole is connected to the metal pin h at d, which axially penetrates A1. The helical spring i is attached to the bottom at h, which brings about the conductive connection to the second pole of the filament each time the control device is set. For this purpose a round plate k is screwed to i, which is pressed down by the spring onto a cylindrically turned disk /; / is in metallic contact with the filament. Since k can rotate in Z, torsion is not exerted on spring i during the adjustment, which takes place by turning G-E1. In this embodiment, it is advantageous not to let the screw threads b span the entire height of A1, but interrupt the wire screw threads above and below before they reach the edge of A1, and attach a screw thread a fully protruding from the non-conductive body . Then you can screw the nut thread el up and down on these non-conductive screw threads in order to switch off the light bulb. You do not need to turn the lamp set to "light" and "dark" over the opposite position to switch it off. It would, however, also suffice to attach such an insulating screw thread to the lower edge of A1, in which case the lamp could only be switched off from the "dark" position. Finally you can arrange a special off switch and use the regulating resistor exclusively to regulate the light intensity. Without departing from the essence of the invention, some things can still be changed in the control device described. So it is B. It does not matter whether the screw threads b of the resistance wire are attached to a solid body as a bolt thread or to a hollow body as a nut thread. In the latter case, the electrical circuit body E becomes a solid body with a bolt thread. In order to be able to accommodate even more resistance wire in a given space than in the illustrated embodiments, the solid body can be drilled out and the hole grooved in a helical manner so that wire windings can also be placed in these grooves. Finally, several hollow bodies formed in this way could be interconnected. Patent claim ρRuchε:

1. Control resistance, at which in relatively A large length of the resistance wire is accommodated in a small space by the fact that it was previously in the form of a screw Coiled wire in screw threads in a correspondingly designed groove on a non-conductive cylindrical body * inserted and over the wire screw an electrical connection body with the appropriate thread is screwed, which electrical connection body with the one line pole is connected, while one end of the resistance wire connects to the other pole then follow.

2. An embodiment of the for i. characterized regulating resistor, in which the lamp socket connected to one pole of the filament is inserted into a capsule (E ¹ J ) forming the electrical circuit body according to claim 1, the second pole of the filament is connected to the supply line (ie) by a helical spring (i) , so that by turning the capsule (E ^[ J on the wire screw threads (b) of the lamp a greater or lesser resistance can be connected upstream of the lamp, whereby the wire screw thread (b) can be interrupted by a non-conductive screw thread (ty · in order to switch off the lamp).

1 sheet of drawings.