US2154264A

US2154264A - Vapor electric device

Info

Publication number: US2154264A
Application number: US178943A
Authority: US
Inventors: Damitz Walter
Original assignee: Siemens AG
Current assignee: Siemens Schuckertwerke AG; Siemens AG
Priority date: 1936-12-12
Filing date: 1937-12-09
Publication date: 1939-04-11
Anticipated expiration: 1956-04-11

Description

A ril 11, 1939. w. DAMITZ 2,154,264

VAPOR ELECTRIC DEVICE Filed Dec. 9, 1957 WITNESSES: INVENTOR Wa ZZer' Dam t2.

ATTORNEY Ell Patented Apr. 11, 1939 UNETED STATES PATENT OFFIQE.

2,154,264 VAPOR ELECTRIC DEVICE Walter Damitz, Berlin-Siemensstadt, Germany, assignor to Siemens-Schuckertwerke Aktiengesellschaft, Berlin-Siemensstadt, a corporation of Germany Application December 9, 1937, Serial No. 178,943 In Germany December 12, 1936 6 Claims.

My invention relates to a vapor-electric device, and particularly to a combination make-alive mounting and spot fixing device.

In the operation of vapor-electric devices controlled by make-alive electrodes, it is desirable to maintain the make-alive electrode with a portance into the vaporizable reconstructing cath- However, because of the vaporizarc space.

According to my invention, a predetermined immersion of themake-alive electrode at any stage of the cathode level, as well as the provision of a spot fixing body, is accomplished by providing fixing body for the attachment of the cathode spot in an arc type discharge device.

It is a further object cathode spot thereto.

Other objects and advantages of my invention will be apparent from the following detailed description taken in conjunction with the accompanying drawing, in which:

Figure l is a sectional elevation of a vaporelectric device embodying my invention;

Fig. 2 is a sectional elevation of a modified form of support; and

Figs. 3 and 4 are plan views of the rafts disclosed in Figs. 1 and 2.

In the illustrative embodiment of my invention according to Figure 1, the converter comoperating condition of the converter.

Since it is desirable to maintain the makerially change the operating characteristic.

The make-alive electrode 5 is connected to the raft 4 in any suitable manner. Herein, I have i and the make-alive electrode suitable fastening be utilized.

a portion of the raft or float 4 of a material such as molybdenum, tungsten or other material which is capable of permitting the attachment of the cathode spot without undue deterioration.

It will usually be found desirable to prevent the spot fixing body 4 from contacting the walls of the container as in a vitreous or ceramic container, the excess heat conducted to the conthe spot fixing body may cause cracking or other damage to the container wall and in the case of a metallic container, contact with the spot fixing body might, in some instances, cause the transfer of the cathode spot from the spot fixing body to the container wall with resulting damage thereto.

In order to anchor the spot fixing raft 4 in the desired portion of the cathode 3, I prefer to provide a suitable guide Ill herein illustrated as an extension of the cathode current lead-in extending upwardly into the cathode material and to provide a suitable cooperating portion on the raft herein illustrated as a collar H supported on a dependent bracket H for loosely engaging the guide member ID, so that while the raft 4 is free to move in a vertical direction in response to the variation of cathode level, the guide ill will prevent unnecessary or undesirable lateral motion of the raft 4, so that at all times the spot flxing body 4 and the make-alive electrode 5 supported thereby are maintained in a predetermined position and relation on the surface of the cathode material.

In the modification according to Fig. 2, the float 4 proper is made of ceramic material and has attached thereto a spot fixing body in the form of a sheet metal annulus l5 clamped onto the ceramic float 4 by lugs iii. In certain instances, it may be undesirable to provide an upstanding guide in the cathode material. In such instances, the raft 4 may be maintained in the desired position by constructing the lead-in conductor 20 connected to the make-alive electrode 5 of a material having sufflcient rigidity to prevent lateral displacement of the raft 4 or else provided with suitable joints so that the raft 4 is free to move in a vertical direction with the fluctuations of the cathode levels.

While for purposes of illustration I have shown and described specific embodiments of my invention, it will be apparent to those skilled in the art that many changes and modifications can be made therein without departing from the true spirit of my invention or the scope of the appended claims.

I claim as my invention:

1. An arc discharge device comprising a container, a plurality of main electrodes therein, one of said main electrodes being of vaporizable reconstructing material, a make-alive electrode having a portion thereof extending into said cathode during normal operation thereof, a float on said cathode, an annular spot fixing body on said float and means on said float for supporting the make-alive electrode in predetermined relation to said cathode.

2. An arc discharge device comprising a container, a plurality of main electrodes therein, one of said main electrodes being of vaporizable reconstructing material, a make-alive electrode having a portion thereof extending into the cathode material during normal operation thereof, a float on said cathode, an annular spot fixing body on said float, means on said float for supporting the make-alive electrode in predetermined relation to said cathode, and means for limiting the lateral displacement of said float while permitting vertical motion of said float.

3. An electric discharge device comprising an evacuated container, an anode in said container, a cathode of vaporizable reconstructing material, a make-alive electrode having a portion thereof partially immersed in said cathode during normal operation thereof, and means for maintaining the partial immersion of said make-alive electrode at a predetermined point regardless of fluctuation of the level of said cathode material.

4. An electric discharge device comprising an evacuated container, an anode in said container, a cathode of vaporizable reconstructing material, a make-alive electrode having a portion thereof extending into said cathode during normal operation thereof, a'raft floating on said cathode material, said make-alive electrode being supported by said raft in predetermined relation to the cathode surface irrespective of the fluctuation of the level of said cathode material.

5. A vapor-electric device comprising an envelope, an anode and a vaporizable cathode therein, a make-alive electrode extending into the cathode a predetermined distance for controlling said device and a float for maintaining said makealive electrode in said predetermined relation to said vaporizable cathode.

6. A vapor-electric device comprising an envelope, an anode and a vaporizable cathode therein, a make-alive electrode'extending a predetermined distance into said cathode for controlling said device and said float for maintaining said make-alive electrode in a predetermined relation to said vaporizable cathode, said float having an annular portion in engagement with the surface of the cathode for damping out waves in the oathode material.

VWALTER DAMTIZ.