DE31235C - Innovations to regulators for electric arc lamps - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 21: Electrical apparatus.

Patented in the German Empire on August 6, 1884.

The characteristic feature in the present invention is application the magnetic action at a distance on rotating iron bodies or other paramagnetic bodies for regulating the arc of electric arc lamps.

This kind of regulator offers the particular advantage that the coals can be used according to their proportions Consumtion be pushed continuously, whereby the arc length, the arc resistance and the current strength remain constant.

It therefore has the peculiarity, in contrast to the previous constructions of this kind, which regulate with the change in current, with a constant electric current the To push coal.

For this purpose, the weight of a toothed rack, which is also the carbon holder is and engages in a gear or other implementation, a disk made of iron in rotating motion, and it is caused by the action of electromagnets at a distance affects the speed of rotation of this disk.

Attached drawing, in which the newly furnished arc lamp in two views, Fig. Ι and 2, and a horizontal Average, Fig. 3, shown should serve as a basis for the description below to serve.

On the pole pieces A, between which the disc E runs, the main loop electromagnet B sits on the one hand, and the secondary loop electromagnet C on the other.

Gear transmissions, as shown in the drawing, or other transmissions to speed lead from the rack D to the pulley E.

L is the other coal holder, which is vertically movable and can be pulled down by an anchor at M.

H is a locking device which has the purpose of preventing the rack Z from falling when the lamp is inactive.

This is brought about by the locking hook G , which carries the armature K at the bottom of the angle lever H and engages at the top in a ratchet wheel G which is firmly attached to the axis of the iron disk E.

The lamp works as follows:

If the coal tips are not in contact, the entire current will go through the secondary loop magnet C , which consequently attracts the armature K , which sets the angle lever H in motion, which releases the ratchet wheel g at G.

Now the rack D will sink while the disk E is rotating at the same time until the coal tips are in contact.

This closes the main current and the electromagnet B attracts the armature M on the one hand, whereby the arc is formed, on the other hand it magnetizes the pole shoes A, whereby the movement of the disk and / or. the rack is completely inhibited by one of the coal at the top in the drawing.

Now, as the charcoal burns down gradually, the resistance of the arc always increases

Claims (2)

larger, which causes the secondary loop electromagnet C to become stronger and stronger. But since the magnetism that C generates in A is opposite to the magnetism of B in A, the longer the arc becomes, the weaker the magnetism of the pole pieces A, and the disk begins to turn, slowly at first, then always faster, because the weakening of the magnetism in A lasts as long as the arc gains resistance, i.e. H. the arch becomes even longer. However, no further weakening of the magnetism in A can occur as soon as the speed of the disk is exactly proportional or. the supply of the coal tip is exactly equal to the speed with which the coal burns, since now the length of the arc and thus its resistance must remain constant. The closer one goes between the pole pieces A with the disk to the main key magnet B, the more its magnetism predominates over that of C, and vice versa. The disk with the conversions is therefore set up adjustable, in the drawing by screw S, whereby a practical adjustment device for different arc lengths and current intensities is obtained. The electromagnets are connected in such a way that the pole shoes on both sides of the disc are magnetic with the same name. : The disc as well as the pole pieces are made of soft iron. Of course, other paramagnetic bodies could also be used, and instead of the disk shape, another shape (e.g. ring, spherical, cylinder, etc. shape) of the body rotating between the pole pieces could be selected. Likewise, while maintaining the mechanism described, it would also be possible to use disks or other shaped bodies made of good electrical conductors, such as silver, copper, aluminum and the like. But since these bodies only rotate between pole pieces with different names and are inhibited by induction, one simply has to provide the main and secondary loop magnets and the pole pieces with different magnetism, in contrast to the ones already described, which is done by appropriate switching. Patent claims: 1. In the case of electric arc lamps, the use of an iron disk or other any other shaped paramagnetic body or any body that conducts electricity well, which or which by implementing with. communicates with a carbon pin and rotates freely movable between two pole pieces, the one of which rotates in the main circle and an electromagnet lying in the bypass to the bow opposite be magnetized, for the purpose of regulating the carbon tip distance of an electric arc at constant electric currents through the induction effect of the poles. 2. A regulator for electric arc lamps, consisting of a rack D as the one carbon holder, a gear wheel or other implementation that engages in the same, an iron disc E, the pole pieces A used to inhibit this, which are connected to the main and secondary magnets B and C. connected, locking device GgHK and adjusting screw S. For this purpose ι sheet of drawings.