DE98053C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 74: Signaling.

Addendum to patent M, 93912 of October 11, 1896.

Patented in the German Empire on April 22, 1897. Longest duration: October 10, 1911.

The one identified in more detail in patent no Device for the transmission of movements contains in the individual embodiments a transmitter (primary apparatus) and a receiver (secondary apparatus), the movable parts of which are in electrodynamic set corresponding positions relative to the fixed parts. Namely will the movable part of the giver is determined by one! Angle rotated, so will the Tensions at the terminals of the induced part of the transducer in phase or amplitude changed. As a result of the differences in tension at the terminals of the induced parts equalizing currents occur from the transmitter and receiver and, as a result, torques occur, which return the movable parts of the two apparatuses to the same relative positions seek to bring the established one.

You do not need to change the voltage primarily in phase or amplitude to use a transducer that is made similar to the receiver. The change in The amplitudes of the voltages can, for example, be achieved by switching turns on and off an induction coil or a transformer. It can do the same Voltage changes are generated as shown in that shown in the parent patent Arrangement by turning the movable part of the encoder. The same effects as described in the main patent can thus be achieved in the receiver.

This modified arrangement can be used for any of the individual arrangements described in more detail in the main patent. In the following, for example, an arrangement for three-phase current will only be described in general. In the arrangement described in the main patent for polyphase currents, the voltages induced in the windings of the movable part were shifted in phase with the voltage in the inducing part, with almost no change in amplitude, by rotating the movable part of the transmitter. The same effect is achieved in the arrangement shown in FIG. 1 by a transformer T in conjunction with a changeover switch U by combining partial voltages.

The receiver S is here a three-phase motor, the winding of which in the movable part is fed by three-phase current from the primary machine P through the slip rings S ₁ S ₂ s _a , while the winding of the stationary part is fed from the transformer T through the changeover switch U.

The three-phase transformer T is supplied with the current from the power generator P through the terminals α bc of the terminal board L ₁ .

For the sake of clarity, the transformer has only one winding on each Legs drawn. The Trans

accordingly, as is known, formator transforms the tensions in the ratio of the turns this winding.

The winding of the transformer is divided. The supply lines to the individual winding sections lead to the terminals a _x a ₂ a _s a ₄ , b ₁ b ₂ b _s b ₄ , C ₁ C ₂ C ₃ C _{4 of} the terminal board L ₀ . The zero point ο of the transformer is also routed _{to terminal board L 2.} The tensions induced in the winding sections ο CL ₁ Od ₂ Oi ₃ ο α ₄ , ο b _t etc. are OA ₁ OA ₂ OA ₃ OA ₄ , 'further OB ₁ etc. is determined by the diagram in FIG.

In the diagram of FIG. 2, the individual voltages are shown in phase and amplitude. The three voltages OA ₄ OB ₄ OC ₄ have. same amplitudes, but are shifted in phase by 120 ° from one another. The partial voltages OA ₁ OA ₂ OA ₃ and OB ₁ OB ₂ OB ₃ and OC ₁ O C ₂ OC _{3 are} plotted in terms of magnitude and direction on the sectors OA ₄ OB ₄ OC _4.

To determine the combined stresses, the stresses OA ₄ OB ₄ OC ₄ negative are also plotted in OA ' ₄ OB' ₄ OC ₄ together with the partial stresses. The tensions are now taken one after the other from points a ₄ undo, α _Ά and ^ ₁ , a ₂ and b ₂ , Ci ₁ and b ₃ , 0 and b ₄ , b ₃ and C ₁ , b ₂ and C _2, etc. The resulting tensions are then
A ₄ OA ₃ B ₁ = A ₃ OB ₁ O = DO

.B ₂ = A ₂ OA ₁ B ₃ = A ₁ 0-OB ₄ = -B ₄ O

B ₂ O = EO B ₃ O = FO = B 'O

U. S. W.

Accordingly, with this union of the partial stresses, the resulting stresses advance by certain angles A ₄ OD, DOE, etc. If the subdivision of the three terminal voltages A ₄ O, B ₄ O and C ₄ O is chosen appropriately, as can easily be determined arithmetically or graphically, a constant shift of the phase is achieved (in FIG. 2 15 ⁰ ) when changing of the power take-off points, without changing the amplitude. Correspondingly, the other two ^{voltages shifted by 120 0} and 240 0 with respect to the voltage under consideration change the phase by the same angle in the same direction with a corresponding change in the current ^{draw points, as can be seen from the diagram, likewise without changing the amplitude.}

The change of the tapping points for the three voltages is done in a simple manner by the changeover switch U (Fig. 1). This changeover switch has segments of the same size on the outer circuit ring 24; the individual segments are connected to the terminals of the transformer T. In the figure, the locations of the changeover switch and the transformer to be connected are denoted by the same letters with the same indices. In addition to these segments, the changeover switch has six electrical circuit rings Zz ₁ h ₂ h ₃ h ₄ h ₅ Λ ₆ . From these rings, connecting lines lead to the terminals Tp ₁ p ₂ p ₃ PiP ₅ p _{6 of} the three-phase motor S. The connection of the segments with the rings is provided by the six current circuit arms K ₁ K ₂ K ₃ K ₄ K ₅ K ₆ , two of which each opposite arms K ₁ and K ₄ , K ₂ and K ₅ , K ₃ and K ₆ belong to the same voltage circles. In the same way as with cell switches for accumulators, two brushes are attached for each current take-off point, which are connected by resistors w , which ensures that a winding section of the transformer T is never short-circuited during the transition from one segment to the next.

In Fig. Ι the brushes of the switch have the following position on the segments: The brushes of one circuit are on a ₄ and o, the second on b ₄ and 0, the third on C ₄ and 0. 'Now, for example, the power supply cross is off the position shown in the figure by 1 5 ⁰ rotated in the sense of the clockwise, then the current extraction points go from a _4, b ₄ 0 C ₄ 0 in a ₃ b _x, b ₃ C _1, CJJ (Z ₁ above. The resulting tensions accordingly (Fig. 2) pass from the values A ₄ O, B ₄ O, C ₄ O to the values DO, GO, HO . As can be seen from the diagram, the resulting tensions are then around 15 compared to the earlier ones shifted ^0. It, therefore, the situation changes the resultant of tension by the same angle, is rotated by which the Stromschlufskreuz. Accordingly, there remains initially unchanged position of the movable Theiles in the engine S (Fig. 1) provided that the rotating field in the solid portion to 15 ⁰ backwards or advances by 15 ⁰ against the rotating field in the movable n part if the motor is two-pole. (Is the engine about

ι c?
wrapped around six poles, it remains around —— = 5 ⁰

in the described case back.) It corresponds, therefore, is at the three-phase motor, which is also intended two-pole, torque, whereby the movable part 15 rotates ^0. The receiver (in Fig. 1 a two-pole three-phase motor) follows the movements of the power circuit cross on the changeover switch for the size and direction. The movement of the receiver takes place in leaps and bounds (in the case of the arrangement shown in FIG. 1 by 15 ⁰ ). If the transformer T

and accordingly modified device of the changeover switch U , this angle can be reduced arbitrarily. On the other hand, the subdivision can be reduced if sudden movements through larger angles are permitted.

The arrangement described thus enables the same as those described in the main patent Arrangements for remote transmission of arbitrary movements at any distance with any force. The cross of the switch becomes mechanical with any If the number of revolutions is rotated, the motor follows in the corresponding number of revolutions and in the corresponding Direction.

With the arrangement described, only small mechanical forces need to be applied primarily (at the changeover switch U) in order to achieve any secondary force effects, since primarily only the friction on the surfaces of the changeover switch has to be overcome.

Secondary, instead of one device, several can be connected in parallel or in Be arranged in series in such a way that when the encoder moves, all Receiver perform appropriate movements at the same time.

Transformer 77, changeover switch U and receiver S can also be arranged differently. For example, the transformer T can have two windings, a primary and a secondary, with the primary current only being fed to the primary winding, while the connections between the terminals a _} a ₂ a _% a _v O ₁ b ₂ b _s £ ₄ , c, C ₂ C ₃ C ₄ with suitable points of the secondary winding in exactly the same way as before.

Instead of the three-phase motor, another apparatus can with suitable Bewickelungen in the solid and in the moving parts, which is approximately adapted for longitudinal movement, contact, etc. It is only necessary, in general, that the field generated in the receiver S ¹ of the primary machine P same direction, like the field generated by the transformer T with the mediation of the switch U in the receiver; furthermore, the input from the primary machine P by induction from the movable part of the motor 5 to P ₁ P.- ,.

Ps Pi Pi Pe generated voltages should be as similar as possible to the voltages generated by the transformer at the same terminals.

In FIG. 1, the arrangement that the stationary and the movable part have three-phase windings in the receiver S is only set up as a general example of the principle on which the invention is based.

If the receiver contains three-phase current winding in the inductive part (the movable part in Fig. 3) and alternating current winding in the induced part, the changeover switch U can be produced more simply, since it is only necessary here to phase the voltage in a circuit without changing the voltage Amplitude, to shift. If the receiver contains alternating current winding in the inductive part and three-phase winding in the induced part, the transformer T and its subdivision and the changeover switch U must be arranged in such a way that when the cross is moved, the individual voltages change in such a way that that of the individual currents The resulting field only changes the direction, but not the strength, which is easy to produce.

Claims (1)

Patent claim: The modification of the claims ι to 3 of the main - patent no. 93912 closer characterized arrangements in such a way that the transmitter (primary apparatus) consists essentially of one Induction coil or a transformer with a larger number of power take-off points and a changeover switch, by moving it without changing the number of phases the individual voltages taken from the induction coil or the transformer are so combined that the resulting voltages are combined Voltages in phase or in amplitude are changed in such a way that in the receiver those of the magnetization produced by the corresponding currents against the magnetization directly from the machine removed alternating currents or three-phase currents is spatially shifted for the purpose of that when the changeover switch is moved without the application of great forces on the encoder, great force effects are exerted be achieved. 1 sheet of drawings.