US513422A - Means for ccxolinq electric conductors - Google Patents

Description

No Model.) 2 SheetsSheet 1. H. A. ROWLAND.

MEANS FOR COOLING ELECTRIC OONDUGTORS. No. 513,422. Patenfed Jan. 23, 1894.

(NoiVIodeL) 2 Sheets-Sheet 2.

H A ROWLAND MEANS FOR COOLING ELECTRIC GONDUOTORS.

No. 513,422. Patented Jan. 23, 1894:.

wit menus M 5 519w UNITED STATES PATE T OFFICE.

HENRY A. ROWLAND, OF BALTIMORE, MARYLAND.

MEANS FOR C0,0LING ELECTRIC CONDUCTORS.

SPECIPICATIOIF formingpart of Letters Patent No. 613,422, dated. January 23, 1894.

Application filed February 14, 1893. Serial No. 462,301. (No model.) I

To alt whom it may concern:

Be it known that I, HENRY A. ROWLAND, a

" citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Means for Cooling Electric Conductors; and

I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 1t appertains to make and usethe same.

My invention relates to methods of cooling conductors carrying large electrical currents,

' such a tank. In order to make the flow of.

and the objectof this invention is to so cool the conductors that they will not heat up enough to destroy the insulation or cause other trouble. To accomplish this result, the conductors are made hollow so that a current of water or other fluid, either volatile or nonvolatile, may be passed through the said conthe water or other conducting fluid continuous, a pair of tanks may be used, one of which 1s being emptied while the other is giving water to or receiving it from the electrified conductor. Reference is bad to the accompanying drawlngs, in which the samg parts are indicated by the same letters throughout the several views. Figure 1 represents a transformer of large size, the secondary coils being removed, and

the primary coils being in the form of a hollow conductor through which a current of liqu d is flowing. Fig. 2 represents a similar device to that shown in Fig. 1, except that the fluid flows from a tank through the primary coils of the transformer, and escapes as a spray as shown in Fig. 1. Fig. 3 represents a similar device to Fig. 2 except that the supply tank receives its liquid intermittently from two feed tanks; the tank actually feeding being always insulated. Fig. 4 represents adevice for operating the pair of feed tanks'alternately and automatically so that the stream of water may at all times be broken. Fig. 5 represents another device for breaking up the stream of water into a spray. Fig. 6 represents a side elevation, and Fig. 7 a section,on' the line on a: of Fig. 6,0f a revolving stop cock for breaking up the stream of waterinto separate segments.

A represents the laminated iron forming the core of the transformer,and BandB' represent the primary coils which carry alarge current of electricity. These coils are hollow fluid, preferably water, although any other liquid, either volatile or non-volatile, conducting or non-conducting, may be used.

In the device shown in Fig. 1, the cooling fluid comes through the pipe 0 and flows through the branches 0 and c, forming the lower portion of the primary coil, up through the coils B and B, the pipes b and b, and the sprays or roscs D and I) respectfully. By means of these sprays or roses, the fluid is broken up into a number of drops, which are insulated from each other by the intervening particles of air, and thus do not carry off the electricity, or any material part thereof flowing through the coils B and B. The electricity flows from the positive terminal E and binding post cl through the coil B, the con ductors c and of, the coil B and the opposite binding post (I to the negative terminal E.

In the device shown in Fig. 2 the flow of electricity is as before, but the water or other fluid comes from a pipe K and a spray D by which it is broken up into insulated portions before it falls into the tank II. From this tank it flows through the hollow conductor 1), the coil B, conductors 0 the coil B, the conductor b and the spray D where it is again broken up, and thus prevented from carrying off any appreciable amount of electricity in the primary coils.

In the device shown in Fig. 3, the flow of electricity and of cooling fluid is the same as in Fig. 2, but the tank H is fed alternately fronrthe tanks M and M, which receive their and have forced through them the cooling m, and n and n of the devices shown in Figs. 4 or 5 may be adopted.

In Fig. 4 the cocks at and n are alternately operated by connecting rods m connected to arms m at the rear ehd of the shoVeLshaped tanks M and M together by rods m pivoted to each tank at m'. These tanks M and M 'have a sloping side m so arranged that when the water rises above a predeternamed height, the tank tilts over and empties itself. As one tank, such as M, is tilted to the position shown in Fig. 4, the cock 1:. is closed and the tank M js thrown into the horizontal position, and the cock 'n' is opened. As soon as the tank M is ready to tilt the tank M is righted and'the valve a closed,

, preferably may be of any Y line with the pipe N and the cock at o ened b the tiltin of the said tank M. p y a In this manner the said tanks M and M will alternately fill and empty themselves automatically, and the tank will never be in fluid connection with pipe N.

In order that electrical connection may not be had through the apparatus,-the arms m and the connecting rods m and m should be of wood or. other insulating material; In the device shown in Fig. 5, the tank lI 1s fed from the pipe N by means of the pipe K, and rotating sprinkler k, which latter well-known construction.

In Figs. 6 and 7 the pipe N is connected to a stop cock P, provided with a rotating valve P having one ormore passages 12*. Only one of such served that the number of them may be multiplled if desired. This valve P'- is attached to a spindle pwhich is driven by the pulley p, but any other convenient means for revolving the valve P may be adopted. It will be seen that each time the passage 11 is in and the hollow piston p water will pass through the spout which will be intermittently formed and broken, allowing a series of segments of fluid to esea which segments will be separated from each other by the' intervening particles of non-conducting air. a While I have shownvarious methods of breaking up the conducting fluid linto nonconducting or insulated parts, it will be obvious that many other methods might be adopted which could be used without departing from the spirit of my invention.

Having thus described myinvention, what of the spout, ajet ofwhich are pivoted at m and m, and are connected 2o passages is shown but it' will be ob- I claim, and desire to secure by Letters Pat.- ent ot the United States, is-

1. The method of coolinghollow conductors carrying electric currents, whlcheonsists in passing a conducting fluidthrough said eonactors, and in breaking the electrical continuity of said ductor. 4 4 p 2. The method of cooling hollow conductors carrying electriccurrents, which conslsts in passing water through said -condi 1ctors,and in breaking the electrical continuity of said water after it leaves said conductor.

3. The method of cooling hollow conductors carrying electric currents, which cons sts 1n passing a'conducting fluid through said conductors, and in breaking the electrical .continuity of said fluid before it reaches and after it leaves said conductor, substantially as and for the purposes described.

f 4. The method of coolinghollowconductors carrying electric currents which consists in passing water through said conductors, and in breaking the electrical continuity of said -water before it reaches and after it leaves said conductor, substantially as and for the purposes described. v

5. The combination of a hollow conductor carrying electric currents, a conducting fluid passing therethrough, and means for separating said fluid into parts which are insulated from each other, substantially as and for the purposes described.

6. The combination of a hollow conductor adapted to carry large electric currents, a conducting fluid passing through said conductor, and means for breaking the electrical continuity of said fluid after it leaves said conductor, substantially as described.

7. The combination of a hollow conductor adapted to carry large electric currents, a con? ducting fluid passingthrough said conductor, and means for breaking the electrical continuity of said fluid before itreaches and after it leaves said conductor, substantially as" vand for the purposes described.

8. In a transformer, the combination with the iron core, of a coil mounted on said core composed of a hollow conductor, a conducting fluid passing through said hollow conductor, and means for'separating said fluid,

after it leaves said conductor into parts insulated from each other.

9. In a transformer, the combinationwith the iron core, of a coil mounted on said core composed of a hollow conductor, a conducting fluid passing through said hollowconductor, and means for separating said fluid before it reaches and after it leaves said conductor into parts insulated from each other.

too

In testimony whereof I aflix my signaturein presence of twowitnesses.

HENRY A. ROWLAND.

Witnesses: 4

. Tnos. M. DoBBm,- WILLIAM H. BERRY.

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