DE582555C - Device for counting draw axles - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
AUGUST 17, 1933

REICH PATENT OFFICE

PATENT LETTERING

M 582555 CLASS 2Oi GROUP

Addendum to patent 556401

Patented in the German Empire on May 24, 1931 The main patent started on December 7, 1930.

In the '556,401 patent there is a device for counting tension axles, where one or more magnetic switches with a rotating armature are used. In the The circuit used here takes place in the state where a wheel is on a track contact stops, a continuous current consumption takes place. The present invention brings another Improvement of this device, consisting in that the switch by a Permanent magnets are polarized. One achieves that two opposite one another Pole shoes a power flow via an armature lying between them send, which holds the anchor in its respective position.

The subject matter of the invention is explained in more detail in the figures, for example.

The permanent magnet 18 has, for example, three poles i, 2, 3 or 4, 5, 6 at each end, the former acting as north poles and the latter as south poles. The armature 7 moves between these poles. If the armature 7 is more strongly influenced by an additional, electrically excited force flow from an adjacent pair of pole shoes, it moves away from the previous position towards this pair of poles and is also held there when the exciting direct current ceases. In fact, only 3 "brief electrical excitation is required to bring about the rotation of the armature. It is therefore sufficient if a current surge is generated when driving over the rail contact, which brings the armature into a new position After the current surge is over, it is held in the new position by the permanent magnet. In order to generate only one current surge, it is useful to charge contacts via the rail contacts, which transfer their charge to the magnetic switch. An example circuit for this is shown in Fig. 2 . Here, the three field magnets from FIG. 1 are represented by circles for the sake of simplicity, wherein 10 can correspond to the two poles 1, 6, 11, the two poles 2, 5 and 12, the two poles 3, 4. On the wheel buttons 13, 14, 15, the working current contacts _{i3 a} , 14 ^, _{τζ α} and the closed current contacts 13 ^ and I5 & are arranged. The capacitors 16, 17 receive via the contacts during the rest position

*) The patent seeker stated as the inventor:

Paul Kardaets in Falkenhagen-West b. Berlin-Spandau.

^l 3b, ¹ Sb voltage from the positive pole of the power source and via magnet io from the negative pole of the power source.

The movement process while driving the wheel button in the direction of the arrow is as follows:

. Wheel button 13 is driven over so that first contact I3 _{6 is} opened, the voltage is switched off and then I3 _{a is} closed. A discharge current of the capacitor 16 now comes about via magnets 11 and 10. The • magnet 11 is amplified by this current, while 10 is traversed by the discharge current in the direction that the power flow of the permanent magnet is canceled. The armature adjusts to pole 11 and is held there by the permanent magnet after the discharge current from capacitor 16 has ceased.

If the wheel button 14 is now driven on while the wheel continues to roll and the wheel button 13 is left, the contact i3 _{a is} opened, the contacts 13 ^ and I4 _a are closed and the capacitor 16 is immediately charged again. This charging current does not touch any field magnet and therefore does not change anything in the armature position at 11.

If the wheel button 15 is now driven on while the wheel continues to roll and the previous one, 14, is left, the contacts i4 _a and I5 _{6 are} opened and ΐζ _α closed. As a result, the voltage of the current source is switched off by the capacitor 17 and a discharge current of 17 is now formed via magnets 12 and 10, which pulls the armature to field magnet 12, where it is held by the permanent magnet after the current has ceased.

If the wheel button 15 is now left by the wheel at the end, the contact I5 _{fl is} opened and IS ₆ is closed again.

The resulting charging current of the capacitor 17 flows via field magnets and increases its power flow so that the armature from the last position 12 after position 10 is drawn. After the charging current has ceased, the power flow remains Permanent magnets to hold the armature in this position 10 exist.

When traveling in the opposite direction, the processes take place in an analogous manner away. When reversing the direction of movement of the wheel while driving over the wheel buttons the armature movements already carried out up to the point of reversal are reversed made so that in this case no count is made.

Claims (2)

Patent claims: i. Device for counting traction, axles according to patent 556401 using one or more magnetic switches for the operation of the counter, characterized in that the pole pairs (1 to 6) of the magnetic switch through Permanent magnets (18) are polarized so that the armature (7) of the magnetic switch in the intermediate time between the individual impulses triggered by the vehicle axles are held in their respective positions by the flow of force of the permanent magnets (18). 2. Device according to claim 1, characterized in that the excitation coils of each magnetic switch via three successive track contacts (13, 14,15) with the insertion of capacitors (16, 17) are switched in such a way that only capacitor charging currents from the current source taken while the discharge currents of the capacitors (16, 17) cause the armature to rotate. 1 sheet of drawings