DE135094C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

M 135094 CLASS 74 a.

Patented in the German Empire from November, October igol.

The present invention relates to an electromagnetic bell and aims to To use electricity as a driving force to ring bells.

The inconveniences that exist with the previous bells may be briefly mentioned in order to better recognize the advantages of the electromagnetic bells permit.

Those chimes where mechanical means are used to ring the bell turn out to be in cases where the bells are of a large size or a greater number of bells act than inadequate, especially because they are not it is always possible to have a competent person on hand who can handle such a mechanical Device received in good order. Other aids, which are for the intended purpose have been tried and among which the pneumatic bells are to be emphasized, show malfunctions depending on the type of attachment and the climatic conditions, which can be ascribed to the influences of moisture, cold or other circumstances, see above that this type of bell is imperfect and unreliable.

With the electrical or electromagnetic bells that have been used up to now it was impossible to make use of electrical power in such a way that a current of sufficient strength to strike or Sounds of the bell can be used simultaneously in such a more accurate and quick manner could be regulated how this z. B. is required for musical performances.

The main purpose of the present invention is therefore to provide a stream of sufficient To use starch to ring bells and at the same time to use the same in precise, to influence and regulate it faster in such a way that the subtle technique becomes more musical Performances can be fully expressed by the force applied.

The invention consists in the use of a relatively low primary current in connection with a keyboard or the like. And a secondary stream, which is sufficient Has strength to make the bell ring, and completely through the primary electricity is regulated.

The invention is illustrated in the accompanying drawings.

Fig. Ι shows a circuit diagram of the bell with the relay shown in plan view and. the one connected to the circuit breaker Solenoids.

Figure 2 is a view of the relay with the armature in its up position while the first working position of the anchor is indicated by dotted lines.

Fig. 3 is a section along line xx of Fig. I,

Fig. 4 is a view of the relay incorporating one of the armatures and a swing arm of the Relay illustrated.

Fig. 5 is a partially sectioned view Side view of the parts shown in FIG.

Figure 6 is a partially sectioned view of the one in use Multiple solenoids.

FIG. 7 is a plan view of the multiple solenoid shown in FIG. 6.

A (Fig. 1) is a primary battery or other source of electricity, the strength of which is sufficient to move the relay described below. Usually a battery of four to six elements, of the kind used in bells, is sufficient to energize the relay. From the battery A , the line α leads to a current closure B \ this current closure can either be operated by hand, as z. This is the case, for example, with the keyboard of an organ or the like, or it can be activated by some mechanical device.

It is readily apparent that instead of the simple ones shown in the drawing Construction of the current closer with this also a braking device or the like. can be connected to ensure that the coils are energized for a sufficient period of time of the relay.

The working current which energizes the solenoid is opened and closed by the relay; the latter consists of the magnets C and D, which are provided with the armatures C 'D' , which influence the arm N. The current closers / and i are attached to the armature D ' , which are designed like cutting edges and interact with current circuit springs which are connected to the clamping screws e, g, h and j.

a ' forms the continuation of line'a when the current through the normally open contact B is closed and is connected to the relay by the clamping screw b; from this clamping screw the current goes through the coils C and D of the relay, which are shown in more detail in FIG. From the coil D the current goes to the clamping screw c and from there through the line a ″ to a metal arm which carries the armature E of the circuit breaker.

After the current has passed through this arm of the circuit breaker, it goes through the line a '" to the primary battery A.

When the current flowing through a is closed by the current closer B , the coils CD are excited and the armatures C and D 'are brought into contact with the cores of the coils, the current thus being closed at e, g, h and j .

The secondary current, which is used to ring the bell, enters at d .

If the above-mentioned current connection is now established by the relay, the current goes from the clamping screw e through the arm / to the clamping screw g, and from there to the line d ', which makes the connection with the coils of the solenoid F. From here the current returns through the line d ″ to the clamping screw h and through the arm i to the clamping screw j and from here goes over into the line d ′ ″ .

The coils of the solenoid F can be connected to one another in any form, so that they are all in the working circuit.

When the secondary current, which flows from d to d " , is closed, the coils R of the solenoid F are excited and the cores are drawn into the coils, but they are prevented from direct contact with the housing of the coils by suitable insulation. The cores of the solenoid F are connected to one another at their upper end, and are fastened to a rod H which is connected to the bell or clapper thereof, and which sets the bell in action.

From the foregoing it can be seen in which way the relay is activated, and how the secondary current puts the bell into operation.

The provisions by which the primary and secondary electricity is quickly interrupted to the relevant parts of the work to be made available for the next work process.

/ is an adjustable contact which is connected to the rod H , while J and J 'represent contact springs which are connected to the power line in the manner described below.

The branch line k leads from the line α 'to the coils K of the circuit breaker and exits at the clamping screw I , to which the line leading to the contact J

From the contact J ' immediately after the battery A.

When the current closer B and thereby the line α is closed, the relay is energized and the working line d is closed by the solenoid F.

The primary current constantly excites the relay by passing from the line α to the line a! " And flowing through the arm Q of the circuit breaker, while the operating current passes through the switching arms / and i of the relay.

The ringing of the bell is brought about by the columnar cores, which the

tung k 'is connected.
leads the line k

Carry rod H which brings the electrical connection piece / with the springs / and J ' into contact. As a result, the current coming from α is immediately closed by the magnetic coils K of the circuit breaker, and then returns through the line k " to the battery ^.

When the armature E of the circuit breaker moves down, the current connection between α and a '" at the current connection point m is interrupted, as a result of which the coils of the relay are de-energized in the manner described below, so that when the relay armature moves upward, the armature and i mediated current connection is canceled and thereby the working current flowing from d to d "'is interrupted.

As a result of this, the solenoid is also de-energized, the cores of which are affected by the action a counterweight or the like. Move upwards.

Accordingly, the essential effect of the relay is that after the closure of the Circuit, the current independently of the normally open at the appropriate moment interrupts.

The following are the details of the facilities used for this purpose to be discribed.

Since the relay supplies the current necessary to ring a large and heavy bell should close and interrupt, it must have a considerable deflection range, i. H. the armature of the relay must travel a fairly considerable distance.

If only a single coil were used for this purpose, then in a current of comparatively great strength can be used in the primary conduction, which meanwhile, the accuracy of the current circuit would have a detrimental effect, or else the The size of the coil would have to be chosen so large that it is sufficiently magnetic To achieve force that the operation of the relay would be too slow.

In order to avoid these inconveniences, the embodiment shown in FIGS. 2 to 5 is of the relay has been selected.

C is a coil through which the current of the line α flows. The armature M, which is rotatable on the base plate of the relay about the pin η and, when attracted by the coil, brings the arm JV connected to it into the magnetic field of the coil D, opposite the magnet of this coil. The arm JV can carry out a further movement in the same direction if it is influenced by the magnet of the coil D. :

From Fig. 4 and 5 it can be seen in which way the armature M connected to the arm JV can be rotated about the pin η. When the coil C is excited, it pulls the armature M until the adjusting screw 0 strikes the arm JV and takes it with it in such a way that its horizontal part is brought into the punctured position according to FIG.

In this way, the distance between the coil D and the armature D 'is reduced, so that the latter is now drawn down by the influence of the current of the line α flowing through the coil D and brought into contact with the core of the coil, as shown in FIG. 2 is readily apparent.

As a result, the arms i and f come into contact with the current circuit pieces of the working current and thereby close the latter.

In order to bring about the return movement of the armatures D ' and C and to cancel the current circuit formed by the arms and f , a spring O is provided which moves the arm JV upwards when the coils C and D are de-energized.

. In order to be able to regulate the deflection width of the arm JV with respect to the coils C and D as required, an adjusting screw P is attached, which rests against the upper part of the arm JV and counteracts the spring O. Of course, the arm JV must be made of non-magnetic metal.

From the foregoing it emerges that, owing to the arrangement of the double relay described for moving the switching arms i and f which cause the closing and interruption of the working current, a current of low strength will suffice.

The construction and operation of the circuit breaker is as follows:

From Fig. 1 it can be seen that the armature E of the interrupter is seated on a resilient arm Q which brings the armature E into contact with the cores of the interrupter when the coils of the interrupter are de-energized.

The arm Q is extended in such a way that its free end lies between the two power supply screws m and /; these screws are adjustable in such a way that the deflection width of the anchor rod Q and the sensitivity of the interrupter can be regulated.

The multiple solenoid used in the present bell system, which is also suitable for other purposes, the following device shows:

The coils of the solenoid -F are attached to a common iron base plate G. (Figures 6 and 7). To enable rapid movement of the cores within the coils, .are in the lower part of the coil

Claims (3)

Housing openings q are provided that facilitate the entry and exit of air. The cores of the various coils are connected to one another by a plate 5 which is attached to a rod H which is connected to the actual bell. By virtue of the application of a multiple solenoid, the use of a closed one becomes possible Ring made of magnetic metal, which results in advantages that are associated with cannot be achieved using individual coil cores. The significance of this circumstance arises from the fact that a large number of them ring the bell Quite a considerable force must be exerted by bells on the bells themselves or to set their clapper in motion. In order to be able to increase or decrease the force to be exerted on the bell, the connection between the solenoid F and the bell can be regulated in such a way that the cores of the solenoid penetrate more or less deeply into the latter. For this purpose, a turnbuckle Γ is attached between the rod H and the actual chime, through the setting of which the force of the bell stop can be regulated. In order to be able to bring about the interruption of the primary line immediately at the appropriate moment when the bell strikes, it is necessary that the current connection piece /, which closes the current at the springs JJ ' , is easily adjustable. For this purpose, according to FIG adjustable Stromschlufsstück designed as a set screw. Pate nt-A ν sprüci-ie: ι. Electromagnetic chime, through it characterized that every stroke of the bell is caused by the closure of a weak current which flows through a relay, which one the bell or the bell clapper by means of solenoid moving high current triggers, until an electrical circuit piece movable with the solenoid cores in the end position of which the relay is connected to a bypass to the latter electromagnetic switch off. 2. Bells according to claim i, characterized by the arrangement of one of the weak current influenced double relays with two armatures, which with one the switching parts connected for the closing and interruption of the working current carrying arm are. 3. Bells according to claim 1, characterized in that that in the working circuit a multiple solenoid is switched on, its interconnected cores on the Bell train are attached. 1 sheet of drawings.