US1180625A - Waterproof non-corrodible paper conduit. - Google Patents

Description

B. C. VAUGHN. WATERPROOF NON-CORBODIBLE PAPER CONDUIT.

APPLICATION FILED DEC. 10, 1915.

Patented Apr. 25,1916.

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THE COLUMBIA PLANOUMPH c 0., WASHINGTON. D- c.

BERT C. VAUGHN, 01E BROOKLYN, NEW YORK.

WATERPROOF NON-CORRODIBLE PAPER CONDUIT.

Application filed December 10, 1915.

To all whom it may concern Be it known that I, BERT C. VAUGHN, a citizen of the United States, and a resident of the city of Brooklyn, in the county of Kings, State of New York, have invented certain new and useful Improvements in Waterproof Non-Corrodible Paper Gonduits, of which the following is a specification.

This invention relates" broadly to paper manufactures and more particularly to the manufacture of paper tubes or conduits.

The principal object of this invention is to produce an inexpensive tube adapted particularly for carrying water impregnated with corrosive salts.

Another object of the present invention is the production of a paper conduit treated with inert material to render said conduit waterproof and to prevent the paper fiber from being attacked by any active chemical in the water being conducted through the tube.

Another object of the present invention is the production of an inexpensive conduit to carry acid waters out of mines and so forth, said conduit being characterized by a tube having a paper stock body with the parts cemented together with an asphalt compound and the exterior of the tube being reinforced by wires completely embedded and covered in an exterior coating of asphalt.

A still further object of the present invention is a tube formed of superimposed layers of paper stock spirally wound and cemented together with intermediate layers of asphalt compound and reinforced on its exterior with a spirally wound wire entirely embedded in an exterior coating of inert material, for example, asphalt.

Other and further objects of the present invention will in part be obvious and will in part be pointed out hereinafter by reference to the accompanying drawings wherein like characters are used to designate like parts throughout the several views thereof.

Figure 1 is a perspective view illustrating a section of the paper tube. Fig. 2 is a transverse detail view through a small section of the wall of theipaper tube. Fig. 3

Specification of Letters Patent.

Patented Apr. 25, 1916.

Serial No. 66,225.

is a plan view illustrating one method of securing the terminals of the reinforcing wire adjacent the ends of the tube. Fig.4 is a side view of the construction shown in Fig. 3. Fig. 5 illustrates a plurality ofsections of tubes secured together to form a line of conduit.

Difiiculty has been encountered in providing means for removing water which accumulates in mines wherein the water is impregnated with corrosive salts. Where iron piping has been used it is found to quickly corrode and be destroyed, so that such iron piping has been found to be impractical for this purpose. Lead pipes have been used but these are expensive and are also liable to corrosion, particularly where the water is impregnated with carbonates or phosphates.

Even wooden pipes have been utilized, but temperature changes and the natural grain of the wood have a tendency eventually to split such pipes, and furthermore, the porosity of the wooden pipes renders this material unsuitable for this work, and also it is substantially impossible to secure the wooden pipes of suflicient diameter without building up the conduits in the form of stays, which is expensive.

It has been found that the difliculties outlined in the preceding paragraphs are overcome by utilizing properly constructed paper body tubes, and to this end the present invention is particularly directed. The invention which will hereinafter be described in detail comprises broadly a built up paper tube including superimposed spirally wound layers of heavy asphalted tough paper, wherein the superimposed layers are cemented together by layers of asphalt. The

tube as built up is successively subjected to pressure so that each additional layer of asphalt and paper is continuously compressed asthe layer is being applied. This produces a very dense walled tube. As the outer layer of paper is applied reinforcing wires are applied and secured at the terminus upon themselves in such manner as to effectually bind and reinforce the tube throughout its length. The completed tube is dipped in. an asphalt compound thereby providing an additional coating of asphalt both on the exterior and interior of the finished tube. The exterior coating completely covers the reinforcing wires so that any corrosive salts that may be in the water do not come in contact with the said wires. Many types of connecting members may be utilized, but preferably I prefer to connect the sections of the conduits together by means of slightly larger short sections of conduits secured over one end of the sections of the tube.

Referring now more particularly to the drawings the tube 1 illustrated in Fig. 1 comprises a section of built up paper conduit of large size preferably of 10 inches or larger in diameter wherein the tube is of uniform diameter and composed of superimposed layers of paper 2. These layers of paper are cemented together as at f by layers of asphalt. A reinforcing wire 5 extends spirally on the outside and is secured at its ends as at 6. Various methods of securing may be used and one simple form of securing means is illustrated in Figs. 3 and 4. The spirally directed wire 5 is turned upon itself as at 7 to pass around the tube in a direction substantially at right angles to the axis of the tube thereby forming an end hoop 8. The terminus of the end hoop 8 may be brought over (as at 9) the spirally directed portion 5, and then under the raised portion 7 and formed into the loop 10. This construction securely fastens the wire upon itself and effectively anchors the wire to the tube. The tube after being wired is dipped in a bath of asphalt which entirely covers the interior as at 11 and also coats the exterior as at 12 with a heavy coating of asphalt, which entirely embeds and covers the reinforcing wires.

Various connectors may be used but in the present form I have illustrated a connector comprising a section of a tube formed in identically the same manner as previously described tube with the exception of the reinforcing wires. This large section preferably is slipped over the end of the pipe and is cemented thereto by means of asphalt cement, while the asphalt cement is unset a binding wire as at 14: may be applied over the junction of the large or union pipe,

thus effectually anchoring the connector to the conduit section. Preferably the connector section or end section is applied and secured before the entire section is given the dip in the asphalt bath which coats the exterior and interior of the tube as above specified.

In the assembly of sections of tubes to form a continuous conduit'the free end of one tube is heavily coated with asphalt compound and is'slipped within the large connector section of the ildJiICGlll; tube and se cured by means of binding wires or otherwise, thereby forming a continuous conduit.

From the above it will be noted that the various sections of built up tubes are ontirely protected and coated with asphalt compound which is inert to corrosive salts and that the continuous conduit comprises substantially a continuous pipe having an exterior and interior coating of asphalt.

Realizing that it is possible to vary the physicalembodiments of my invention I desire the specific structure shown to be 0011- sidered as illustrative and not in the limiting sense.

Having thus described my invention what I desire to claim is 1. As an article of manufacture, a section of water-proof non-corrodible conduit, including a relatively large tube having body walls of substantially uniform thickness, said body walls being formed of compressed superimposed alternate layers of heavy paper stock and asphalt, said layers of paper stock being spirally wound and cemented together with layers of asphalt forming substantially continuous cylinders between the said layers of the spirally wound paper, reinforcing means on the exterior of said body walls and secured to said section adjacent each end thereof by means including substantially circumferential hoops, an enlarged member at one end of said section and fixedly secured thereto to enable a plurality of sections to be joined together to form a continuous conduit, and layers of asphalt completely covering both the interior and exterior of said section.

2. As an article of manufacture, a section of water-proof non-corrodible conduit, including a relatively large tube having body walls formed of compressed superimposed alternate layers of heavy paper stock and water-proof cementitious material, said layers of paper stock being spirally wound over the layers of the cementitious material in such manner that said cementitious material comprises substantially continuous cylinders intermediate the layers of paper, reinforcing means'on the exterior of the body wall and secured to said section adjacent each end thereof, an enlarged member at one end of said section and constructed to receive an end of an adjacent section to enable a plurality of said sections to be joined together to form a continuous conduit, and an inert water-proof coating completely covering said reinforcing means and both the interior and the exterior of said section.

3. As an article of manufacture, a section of water-proof non-corrodible conduit, including a relatively large tube having body walls of substantially uniform thickness,

= the paper stock, each layer of asphalt being seamless and forming substantially a continuous cylinder so that the body Wall of said tube consists in spiral layers of seamed paper in alternation With continuous seamless cylinders of asphalt, and continuous asphalt coatings on both the interior and exterior of the section.

BERT C. VAUGHN.

In presence of--- ROBERT R. DANZILO.

Uopies of this patent may be obtained for five cents each, by addressing the Commissioner of l 'atenta,

Washington, D. G.

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