US1166186A - Starting means for vapor electric devices. - Google Patents

Description

F. CONRAD. STARTING MEANS FOR VAPOR ELECTRIC DEVICES. APPLICATIDN man JAN-7| x911.

T5? liNZi CONRAD, OF SWISSVALE, PEITNSYLV fiiNTiil, ASSIG'NQIE, TO. 'WESTIZNGHBUEE ELEGTRIC MANUEAGT'URING CDEZIEANY, A CUREE'ORATIUN UK PENNSYLVANIA.

lLfillllLlfign nneeific'stion of Letters Eatent.

lPolented Juice". di l flwlllllq Application. filed armory 2", 1911. Eerie! We, $013M.

To all whom it may concern: I

Be it known that l, FRANK Genesis, e citi zen of the United States, and a resident of Swissveie, in the countv of Allegheny and State of Pennsylvania, and improvement in Starting Means for Vapor Electric Devices of which the following; is o specification.

My invention relates to starting means for vapor electric devices, such as current roctiflex-s and lamps, in which mercury is cm plcyed as a vaporiznble electrode, and has for its object to provide n'iezins'vvhereby a starting electrode may be moved into end. out of engagement with the mercury or other vaporizable electrode, which means shall be easing being; provided with, r;

end for th e wuslic accessible-for operation from the exterior oi the rectifief casing Figure 1015 the accompanying drawing is a sectional. view through a part of emercury vapor rectifier that embodies my invention, and, fl is a side view of certain of the operatively related parts for actuating the movable starting electrode.

The device in connection with which the present invention is employed is mercury vapor rectifier having; on iron or other suitable metallic casing 1 upon which a cover 2 is tightly clumped, the top p rtion of the tapered 0i: rustoconical sent that is engaged by a corsoi'idingly shaped portion of the cover.

H .ighin the casing an insulating bowl or of porcelum cun- I-l that-is suitably composed and contains a body l oi mercury et quette any other suitable material constituting o. veooriznblc electrode.

cover E3 is provided with e sleeve 5 having an interior tapered seat 6 at its lower 1e reception of r correspondingly shaped exterior portion of an insulating lUllSllll'ig 7 that extends enough the cover and into the chamber ithin the casing. The bushing 7 is secured. in the cover 2 by means of n sleeve or nut'B that is serei into tie upner end offlche sleeve end oetweeu. which and a shoulder upon the bushing I, in). asbestos other slightly compressible washer 9 is interposeclw metallie washers 10 being; locatedv above and below 2* for protecting the some. The

as e

asbestos h have invented a new her provides moons iJlEQIQlFy tlie' pre'ssuoe exerted by the out 8 is distributed substantially uniformly upon the surtuco oil the shoulder on the bushing 7;

The bushing 7 is provided with on intwioi' tapered or frustoconical sent 123 for the lower face of on ei'ilergement 13 oil a tubular iron member 13 that 2 tends from near the top of the bushing 7,, through the some, and

into the chminl'icr within the cosine. Resting upon the shoulder provided by the upper face of the enlargement 13 of the tubular mom- ,ber 11% is an insulating sleeve 14: by means of which pressure is transmitted to the said. shoulder for 'it'orcing the tapered lower face of the enlargement 18 of the member it? against the seat in the bushing '3. Pressure is applied to the sleeve 14% by means of a. tubular nut 16 having an external screwthread engagement with o. bushing}; 17 that is cemented or otherwise secured in the upper end ot' the bushing 'i', an asbestos othev suitable slightly compressible Washer 18 and metallic Washers 19 being interposed between the nut 16 and the sleeve. i l. member 13 is also provided with an interior tapered or frustoconicszl seat 21 "for the reception of a correspondingly shaped it'ecc upon a local enlsrsicment of ov rod that extends entirely through all of the surrounding parts, the said rod bei pro ided, upon 1 ere. ployed for establishing it good elcctricnl connection between the nut 16 and the rod '3.

The parts above described are so as to provide spaces directly above the n. where partsnr'e seated, the against the other, and the said spaces are filled or pv tieliy filled, with mereur v or any able material for rendering the joints anoreneerly vacuum tight than they o would be. The tubular member i sleeve are provided with onertur. A permit mercur v to flow into all of the Sl'lilfififil between the adjacent parts, end the nut 16 The tubular il ll ill/i ii iii the said spaces.

provided rrith longitudinal passages through which mercury msy be pouredinto Une end of a lever is pivota to thelower end of the tubular member 13 and from its other end is pivotally suspended 9. rod 31, upon the lower free end of which is a. carbon or other suitable terminal member 32 that constitutes a starting electrode end is adapted to be moved into and out of the mercury i by rotation of the rod 932. The under side of the lever 8.0 is provided s roller that is disposed parallel to its longitudinal axis to engage 3. Cam 2-4 which. is rigidly mounted upon the lower'end of the rod 22. Rotation of the cam means of the knob 23 and the rod t es to raise and lower the lever 30 and, with it,'the rod 31 and terminalmember 32. "nae, rod 31 is gnided in its vertical movement by means of an apertured bracket arm 35 that is secured to the lower end of the tiibul'er member 13.

in order to start the rectifying process Within the device, the knob 23 is turned to cause the starting electrode 32 to be lowered into the. mercury e and to be subsequently withdrawn therefrom, whereupon an arc is prodnced which overcomes the negative electrode resistance and permits the rectifying process to start. It will, of course, be understood that, during this operation, the terminals of a suitable source of energy (not shown) are connected, respectively, to the 'veporizable electrode 4 end the starting electrode 32. W hen the rectifier is in operation, the starting electrode 3:2 occupies the position shown. in full lines.

l. cinim as my invention:

1. lln a vapor electric device, the combination with an evacuated container, of a movable electrode therein, a member for manipulating ssid electrode and extending through My attached the wall of said container, and a seal having a total length of less than 760 millimeters for providing a vacuum-tight joint between said member and the wall of said container.

2. In a vapor electric device, the combination with a casing, of a bushing extending into the casing, a tubular member seated in the bushing and extendingthrough the same into the casing, a rotatable rod seated in and extending through the tubular member, an electrode within the casing, and means associated with said tubular member and said rod whereby rotation of thesaid rod raises and lowers the electrode.

3. In a vapor electric device, the combination with a casing, of a bushing extending into the casing, a tubular member seated in the bushing and extending through the same into the casing, a rotatable rod seated in and extending through the tubular member, an electrode Within the casing, and means whereby rotation of the said rod raises and lowers the electrode.

t. In a vapor electric device, the combination with a casing, of a bushing extending into the casing, a tubular member seated in the bushing and extending through the same into the casing, means for forcing the tubular member upon the seat in the bilshing,

a. rotatable rod seated in and extending through the tubular member, means for resilie'ntly holding the rotatable rod to itssest in the tubular member, an electrode within the casing, and means" whereby rotation of the said rod raises and lowers the electrode.

In testimony whereof, I have hereunto iubscribed my name this 30th day of Dec.,

FRANK CONRAD.

Witnesses A. W. Corner, B. B. Hmns.

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