DE107443C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention relates to a fluid reversing starter, which is a union of the Pohl seesaw and the usual Represents liquid starter. The dip cups of the rocker are here by the the resistance fluid-filled troughs of the fluid inlet replaced. In this way a reversing starter is formed, which compared to the one formed from wires initially the Advantage of greater cheapness, and then that of a much more precise regulation can be reached.

The subject matter of the present invention is illustrated on the accompanying drawings, became light.

Figs. 1 and 2 show an embodiment of the liquid reversing starter in basic rifs and view.

3 and 4 show a second embodiment also in plan and view represent.

Fig. 5 shows the new starter in the one position of use.

For this case, FIG. 6 shows all the current curve when an alternating current motor is operated represent.

FIG. 7 also shows the circuit diagram for this case, but when one is in operation Three-phase motor.

Fig. 8 shows the new starter in the other position of use.

FIGS. 9 and ι ο correspond to '. this case to Fig. 6 and η. .

Figures 11, 12, 13 and 14 illustrate the different positions and the current flow in a further embodiment of the new starter for alternating or three-phase current.

FIGS. 15 to 19 show different embodiments, which correspond to the schematic FIGS.

The two embodiments shown in FIGS. 1 to 4 have two troughs α b for receiving the suitable resistance fluid. In the first embodiment, the trough is a simple trough open at the top, while in the second it forms a piece of a hollow ring. The four insulated on one or two arms attached c 'immersion defg tongues are cross-conductively connected with each other. Depending on whether you now bring the arms c in the vertical position or they respectively to the right. folded to the left, the current is interrupted or is flowing in one or the other. in the other direction by the motor connected to the starter.

5 to η show the current curve in one operating position of the starter. The current occurs in Fig. 6 at h ; it will pass through the trough b and the tongue e into the motor k and from there back into the tongue d into the trough α and exit again at i. .

It is well known that reversing two phases is sufficient for reversing and starting a three-phase motor. The starter described so far can therefore also be used for this purpose, only a third trough I must be added to troughs α and b. In these the two tongues then immerse themselves , which, however, are not isolated from one another

Claims (2)

to need. Of the three lines op q (Fig. 7) 0 and ρ are connected to i and / 7, line q on the other hand to the trough /. The three sets of coils of the motor r st are connected to the three terminals of the arms c. The circuit becomes even easier if you switch on resistance in only two lines when starting three-phase motors. In this case the trough / with the tongues mn is not necessary at all, but one connects q directly with t. 8, 9 and 10 correspond to FIGS. 5, 6 and 7, except that the other operating position of the arm is assumed here. As can be seen from the schematic circuit diagrams, the motors will turn in the opposite direction when the starter is in this position. Of course, the ends of the motor windings in question could also be attached directly to the troughs, but the lines h and i respectively. opq must be connected to the contacts of arms c. Instead of using two immersion tongues isolated from one another for each trough, a single double immersion tongue can be immersed in two different troughs isolated from one another, as is shown in FIGS. 11 to 19. The four troughs uv n> χ are here in the same way as the immersion tongues used to be. connected to each other crosswise. This connection can, as FIGS. 15 and 16 show, be accomplished by a wire or the like. However, as is shown in FIGS. 17 to 19, the troughs ν and χ respectively. Let u and w consist of one piece. They are then isolated from one another, and one bridges the other (Fig. 18). 11 shows a starter motor consisting of four cross-connected troughs uv w and two immersion tongues isolated from one another, switched off in a schematic representation. FIGS. 12 and 13 then show, corresponding to FIGS. 6 and 9, the current curve in one or the other operating position. 14 shows a starter for a three-phase motor switched off. The new reversible starter can also be used for currents of any strength without difficulty and is very easy to operate, which can be done either by hand or by a mechanical drive. Pa τ ε nt claims: 1. By type of P hl'sehen rocker ο formed liquid turning - starter motor, characterized by four to each other cross-wise connected, isolirte in two from each other and filled in conventional manner with appropriate resistance liquid troughs (ab) submergible metal tongues (defg), of which always only two (de and fg) not connected to each other are immersed, for the purpose of changing the direction of the current in two lines connected either to the immersion tongues or to the troughs, whereby the current intensity can be regulated at the same time by more or less deep immersion . 2. A modification of the device marked under 1., in which only two double immersion tongues isolated from one another (y%), on the other hand four with; troughs that are conductively connected crosswise to each other (uvn> x). are present, whereby the two troughs connected to one another (u and w or ν and x) can also be designed as a single one. 1 sheet of drawings.