US877448A - Process for the production of voltaic strong-current arcs. - Google Patents

Description

1 No. 877,448. PATENTED JAN. 21, 1908.

H. PAULING.

PROCESS FOR THE PRODUCTION OF VOLTAIG STRONG CURRENT ARCS.

APPLIGATI ON FILED JUNE 30. 1906.

. of- Pi'ussia, German Empire, have'invented nnrrnn STATES arana onnron.

HARRY PAULI'DlG, OF GELSENKIRCHEN, 1ASSIGNQR TO THE FIRM'OF 'SALPETERSAURE-INDUSTRIE-GESELLSGHAFT, G. M. B. H .,-OF GELSENKIRGHEN,

GERMANY.

rnocnss FOR THE PRODUCTION OF vom'nrc scrnonacnnnnnr ARCS.

Specification of Letters Patent.

Patented Jan. 21,1e0s.

, Application filed J line 30. 1996. Serial No. 324-278 T cZZ whom itma'g concern:

Beit lrnown that'I, HARRY PAULING, a subject of'the German Emperor, and resident of..84 Vl ilhelnrstrasse, in Gelsenkirchen, in thei royince of. Westphalia, in the Kingdom certain new and useful Improvements in Processes. for the Production of Voltaic Strong-Current Arcs, of which the following is a specification.

. This invention relates to processes for the production of voltaic strong-current arcs such are adapted to act on air or other gases, or on mixtures of air with such gases.

My improvements will be useful in connection with the production of nitric acid from air, for example, by 'mea'ns of voltaic arcs, as has previously been proposed It has been found that the application of electricity to the treatment of air or analogous gases necessitates voltaic arcs of a con siderable length, but of a comparatively small dimension incross section. The great length of such arcs requires avery high tension, and high tensions, as is well-known, have a tendency to-v effect sudden short circuits between the electrodes forming the arcs.

The object of this invention is. to avoid such short circuits.

To such end it consists in certain features of novelty which will appear from the following description, reference being had to 'the accompanying drawing which shows dia grammatically a form of construction of an apparatus for ellccting the new process.

1 Figure 1 is a vcr'ti \1 section on the line l1.

of Fig. 2, and Fig a horizontal section on In those drawings, 1 denotes a pipe which is employed to blow a current of the air, or

verging electrodes 2, Z and in the direction of divergence thercol. The electrodes 2, 2- are arranged to diverge in lateral and upward the presence of two subscribing witnesses. other gas to be acted upon, between the d1- directions from ppe 1,- and they are contained'partially in a channel 3, and partially in a channel 4 disposed preferably at right angles to the former and communicating therewith. The electrodes are connected to the source of current bywires 5 at the point of their convergence. The channel 4 is to receive another current of the gas, this current entering in the direction' o'f ithe arrow 1.

The current of gas passing along the channel 4 acts in its turn on the portion of'the electrodes 2, 2 projectin into the'channel 4 so as to blow between t em and convey, in

connection with the current of gas leaving the-pipe l, the discharges along the electrodes so as to form arcs of the desired lengths with the avoidance of short circuits.

A certain definite length, as is well-known, will cause the arcs to break and hence extinguish. The velocity oft-he current of gas in the channel 4 is less than that of the current arriving in the channel 3. These velocities must be acertained by experiment.

It is to be understood that any suitable construction of apparatus for effecting the described process may be used, the construction illustrated being given by way of ex-

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