US284226A - Gables with insulating substances - Google Patents

Description

(No ModelJ W. R; PATTERSON.

APPARATUS FOR FILLING GABLES WITH INSULATING SUBSTANCES. No. 284,226. A l Patented S'ept.- 4, 1883.

i I E/KM insulation in a cable in which theseinsulating a steam chamber or jacket, A. Connected-with UNITED STATES 'PATENT OFFICE.

, WILLIAM R. PATTERSON, or CHICAGO, InL1no1s,AssIcNon TO THE, wnsrnnn ELEoTnIoooMrANY, or SAMEPLACE.

APPARATUS FOR FILLING ChBiLS WHH INSULATING SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 284,226,da ted September 4, 18 83. I Application filed February 13, 1883. (No modem To all whm'n it may concern:

Be it known that I, WILLIAM .R. PATTER- soN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new. and

useful Improvement in Apparatus for Filling Gables with Insulating Substances, of which the following is a full, clear, concise, and exact description, reference being had to the accomk ro r specification.

l mately mixed with gas-is introduced into the cable in a molten state under pressure. The insulating substance which I have preferably used in these cables is'paraffine mixed with carbonic dioxide. Paraffine and other insu lators of this class, as generally manufactured and sold, contain more or less moisture. This.

is also true of air or gas under ordinaryconditions. In order to obtain a high degree of substances are used, it is essential that this moisture beremoved before the insulating substance is introduced into the cable. By

my present invention I have sought to provide an apparatus adapted to remove the moisture from insulating substances used for filling cables, said apparatus being also adapted and combinations of scribed and claimed.

11 p to force the said insulating substance into a cablein a molten state and under pressure. My invention consists inthe construction parts, as hereinafter debod-ying my invention. i,

In the said drawing, A represents a tightly: closed reservoir, which I termthe chargingchamber, provided at the bottom with a 1 the charging-chamber Aby' a pipe, a,'-.pro vided with a. valve, a1, is an open reservoir,

B, which I termfthe evaporating-kettle. Thisevaporating-kettle B is provided with a.

steam-jacket, B, which extends to the top of the said kettle, so that when steam is admitted into said steam-jacket the evaporating-kettle is kept evenly heated throughout.

0' represents a carbonic-dioxide generator, which consists of a mixing-chamber, b, and an acidechamber, 0, arranged in the ordinary manner, the mixing-chamber I) being provided with the customary agitator, b, and the acid-' chamber being supplied with a valve, 0, adapted to open aid close the aperture lead ing to the mixing-chamber, in thensual way.

From the top of the mixing-chamber .b a

pipe, bi, leads into a drying-chamber, d. i This drying-chamber d is divided by a perforated calcium or other suitable absorbent. b from the mixing-chamber b enters the lower compartment, (1 A connection is'made from this pipe b to the upper part of the acid-chamher 0, to equalize the pressure therein, and

also to a pressure-gage in the ordinary manner.

From the top of the upper compartment, d, of the dryingchamber (l a pipe, 0, leads to the charging-chamber A; This pipe 6, entering at the top, extends to the bottom of said chargingchamber A, and there connects with a coil of perforated pipe, 6.

The cable to be filled is attached at oneend to a discharge-pipe, f, which leads from near 5' 7 false bottom into two compartments, d d the l upper one, at, of which contains chloride of t The pipe the bottom of the charging-chamber A. This cable is preferably coiled on a reel, D, and

placed in an oven, E, during the filling process, the said ovenbeing kept at a temperature above the melting-point'of the insulator used.

The operation of filling a cable with this apparatus is as follows: The paraffineor other 1 The moisture contained prevents-moisture from collecting on the sides a of the kettle and running back into the insulator. When the moisture has thus bcenall evaporated, the insulator in theevaporatingkettle is drawn off through pipe a into the charging-chamber A. Here, by means of the steam-jacket A, it is retained'at a temperature above the melting-point of the insulator, preferably at 150 to 200. Gas is now generated in the generator by allowing the acid contained in the acid-chamber c to enter the mixing-chamber b, which contains asuitable carbonate, a uniform production of the gas being secured by the agitator 1/. The gas thus generated passes from the mixing-chamber b into the drying-chamber d, where it parts with any moisture it contains, and then passes through pipe 0 to the charging-chamber A, en tering said charging-chamber through the coil of perforatedpipe e. in the bottom thereof. The gas is thus forced into the charging-chamber in a thoroughly dry condition, and, rising through the melted insulator, becomes intimately mixed therewith. When sufficient pressure is obtained in the charging-chamber,

the discharge-pipef is opened and the insuvaporized in said chamber, and, having no means of. exit except through the discharge.

pipe f, would finally be discharged into the cable, with damaging results. Besides, if the insulator in the charging-chamber were heated to a sufficient, temperature to vaporize the moisture contained therein, the said insulator would be so expanded that it would not take up the quantity of gas which is desired. The temperature in the charging-chamber is therefore kept just above the melting-point of the insulator therein, 7

In addition to the perforation in the coil 0 at the bottom of the charging-chamber, I pro- -vide the pipe 6 with one or more small perforations, e, above the insulator contained in said chamber. This is for the purpose of equalizing the pressure of the gas in the said pipe 6; otherwise, if for any reason the pressure should be lowered in the generator, the insulator from the charging-chamber would be forced back into the pipe, 6 and the drying-chamber d, where it would-solidify, causing very serious inconvenience.

. I have shown the evaporating kettle B placed above the charging-chamber A and connected thereto by a pipe, so that the molten insulator will run from the kettle to said ment, but it is obvious that it may be arranged in any'other suitable manner.

All the pipes and connections are provided with suitable cocks or valves, so that the entire apparatus may be kept under perfect control and regulated to suit varying conditions.

The various chambers of the generator are provided with suitable openings for the,admission and removal of the material used there in, and all of its parts may be readily cleansed. By reason of the lowercompartment, (1 in the drying-chamber d, in case the lower portion of the absorbent becomes saturated, the moistat a temperature above the melting-point of 8 5 said insulator, of a generator adapted to supply gas under pressure to said charging-chamber, substantially as specified.

2. The combination, with a charging-chamber provided with a dischargepipe leading from near the bottom thereof, said chargingchamber being adapted to retain an. insulator under pressure at a temperature above the melting-point of said insulator, of an evaporating-kettle, substantially as and for the purpose specified.

3. The combination, with a charging-cham-- ber adapted to retain an insulator in a molten state under pressure, saidcharging-chamber being provided with a dischargepipeleading from near the bottom thereof, of a generator.

adapted to supply gas under pressure to said charging-chamber, said generator being provided with a drying-chamber for removing the moisture from the gas, substantially as and for the purpose set forth.

4. Asteam-jacketed charging-chamber provided with a discharge pipe leading from near the bottom thereof, in combination with a generator adapted to supply gas under pressure to said charging-chamber, substantially as and for the purpose specified.

5. The combination, with a steam-jacketed IIO ' charging-chamber provided with a dischargepipe leading from near the bottom thereof, of 1 I 5 a steam -j ac'keted evaporating-kettle, substantially as and for the purpose set forth.

6. In an apparatus for filling cables," the a under' pressure, said charging-chamber and.

generator being connected by a pipe which extends to the bottom of said charging-chamber, whereby the gas from said generator is caused 'to pass through the melted insulator in the charging-chamber, substantially as the purpose set forth.

8. The combination, with a charging-cham-:

and for "ber proyided with a discharge-pipe leading from near the bottom thereof, of an evaporating-kettle and a generator, said generator being provided with a drying-chamber, substantially as and for the purpose set forth.

9. The combination of a steam-jacketed I chargingchamber provided with a dischargepipe leading from near the bottom thereof, a?

(steam-jacketed evaporating kettle placed 10 a, a 3 to said chambenby a pipe, to, and a generator i for generating gas under pressure, said generlabovesaid charging-chamber and connected ator being provided witha drying-chamber I a adapted to remove the moisture from the gas, flI5 I a a 1,10. The combination of the charging-oham- :ber A, evaporating-kettle B, generator O, and

substantially as specified.

oven E, substantially as and for the purpose specified. v a

120K 1 11. [The combination, with a charging-chamher adapted to contain insulating substance in amolten state, and a generatorfor supplying gas under pressure, of a pipe for conveying the gas from the generator to the charginga chamber, said pipe being adapted to discharge :the gas under the surface of the insulating substance in the charging-chamber, and being a also provided with one or more perforations which open into said charging-chamber above the surface of the insulating substance therein,

said pipe, substantially as and for the purpose set forth. a

In witness ,WhBIBOf I hereunto subscribe my" name this 8th day of February, A. D. 1883.

PAULA. STALEY, A. D. Con.

WILLIAM PATTERSON. a

Witnesses:

3o wherebythe pressure of the gas is equalized in

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