US24125A - Improvement in manufacture of water-proof cement pipes - Google Patents

Description

A. F. JALOUREAU. PROCESS OF MANUFACTURING WATERPROOF OBMENT PIPES.

10.24.125 .Patentedmayzm 1859.

(f if NITED ASTATES PATENT Critica.,

.ALFRED FAUVINVJALOUREAU, OF PARIS, FRANCE.

IMPROVEMENT IN MANUFACTURE 0F WATER-PROOF CEMENT lPIPES.

Snecificationforming part of Letters Patent No. 211,12, dated May v24, 1859.

erence being had to the accompanying draw'- ings making part of this specification. l

.The nature of my invention consists in forming pipes or tubes intended as Water or gas pipes, tubes for` underground telegraph-4 Wires, dsc., of a number of layers of` paper, cotton, ax, or other tissues, dzc., lapped together,with bituminous or caoutchouc substance between each layer, so as to render'the Whole impermeable to air or water.

In .order to illustrate my process of manufacturingthese pipes, I will noW,'in proceed-v ing to give the description of the operation,

refer to an apparatus proper for carrying .it into effect, and 'of Whichy Figure l represents a ,vertical section.

The paper, tissue, or other suitable material intended to be 'used for forming the pipes or tubes has first 'to be Wound around avroller a,

made of Wood or metal, and which is arranged at one end of the machine. In commencing the operation the end of the roll of paper, dto., is to be conveyed along the inclined plane b to the cast-iron cylinder c, care being taken to maintain the paper in va parallel direction;

and as it is of the greatest importance, in or# der to obtainperfect work, that the-paper should continue to wrap around evenly and regularly `throughout the operation, a horizontal guide-bar e, suspended by means of two rods d, pivcted at their upper ends at f, is so arranged that by pushing it(the guidel bar) against the cylinder c the paper will be caused to be fed on the latter at right angles to its axis, so that the paper will Wrap around evenly and with precision over the cylinder c, to which a revolving motion is to be communicated by means of a crank' or any other suitable device.v The cylinder .c being plunged into a vessel g, containing caoutchouc or bituminous mastic, the paper will adhere to the surface of the cylinder and after one revolution will be brought round to the upper sidev of the latter, when an iron mandrel 'h is to be placed over the cylinder c. This mandrel 'is iirst to be covered with a paper Wrapper t', Figs. 4 and 5, having been greased suftlclentl-y so as to facilitate its withdrawal at the end of the operation. Inputting on this Wrapper o) it is very convenient to make use of a cone similar to those used for drawing a lamp- Wick over a cylindrical tube. Ilooks la are then to be engaged with the axles of .theman- .drel, thel Whole lifted up to the required height by means of the lever Z, operated by a chain mandadjusted in the bearing-boxes n in such manner as that the mandrel h should press slightly against the cylinder c. The end or border of the paper von the cylinder c has to be detached from it bymeans of any 4suitable instrument, in order to make it adhere to the mandrel h, andthen, on a revolving motion being communicated to vthe cyl-v inder c. and mandrel h in opposite directions, the paper will be submerged'into the bit-uminous liquid before it Wraps aroundthe mandrel h. When thewhole roll of, paper has thus been Wound vup around the mandrel 4 h, it (thev mandrel) is to be lifted up again from the bearing-boxes 'n .and placed on av table B, made of stone or briclcaudvery smoothly .finished o n its upper surface, and then covered over with a layer of very'lue sand. Two v'operatorstake hold of the mandrel h by itsaxles and roll it up and down the table until the tube acquires the proper cylindrical form land is covered with a suffi-' cient layer off-sand', when it is again replaced over avessel containing bituminous mastic, in.

order to giveit an outer coating; but as it is very desirable to-have some easy and reli able means for regulating the thickness to be given tothe outer coating I have mounted on the axis of the cylinder c a toothed Wheel p, having some of its teeth cut out or re moved, as is shownin Fig 8.l This wheelis made tov mesh into the pinion o of the mandrel h. At eachv revolutionofthe cylinder, when the toothless portion of Jdie wheel p comes in contactwith the pinion'o," the mandrel is made to stop for a short time, so that the number of revolutions andthe thickneus given to the coating may be easily ascertained. After a sufficient. outer coating has been given, the mandrel .is again lifted up from the bear- A ing-boxes and subjected to another rolling on a table similar to B, in order that the outer are placed under a water shower arranged over the second table. After the last operation the iron mandrel h maybe withdrawn from the tube, for which purpose it is only necesl sary to place it in avertical position, whenv a slight knock will be suiiicient to make the tubeslide oi the mandrel, the paper wrapper t' having been put on a mandrel previously greased.

In order to prevent the tube from coming out of shape, a wooden mandrel may be introduced until thetube becomes perfectly dry. It is then only necessary to remove the inside paper wrapper i by means of a metallic brush or othcrsuitable contrivenee, and line the inner-surface of the tube with a Waterproof coating, which can be readily effected by pouring into the tube (one end of which havingpreviously been closed) molten bituminous substance to about one-third or onehalf of its height. By reversing the tube the liquid will pour out, leaving the whole inner surface covered with an impermeable coating.A

The different stages in the process of forming the tubes are shown in Figs. G, 7, and 9.

It may be here remarked that this process can be adapted not only to roll-paper, but also tc sheet-paper and all'fibrous substances,

as also to thin metallic sheets, as copper, zinc,l

proceeding with the whole operation as above described, whereby not only additional strength and resistance will be imparted to the tubes, but they Will also be protected from oxidation or other decay.

, The method adopted by me for connecting the tubes together is represented in Figs. 10, 11, and 12. Into the ends of two tubes to be jointed together is fitted a short pipe o', made of zinc or other suitable metal, and which is provided with a number of arms s, which are bent, as shown in Fig. 10. The whole is then coveredl with a sleeve t, made in the same manner as the tubes from a composition of paper, die., and bituminous cement, and finally molten .bituminous substance is poured in through the hole at u,.which ills the whole space between the tubes and the sleeve t and constitutes a stron g, durable, and impermeable connection.

For laying down and connecting main pipes of a great diameter I have adoptedv another plan, as shown in Figs. 17 4and 18. It consists in arranging two sets of tubes the one in the other in such manner that each of the join# ings of the inner tubes :c shall be covered over by the sides of an outer one y. The tubes are made to iit sufficiently close each other, to leave but a small space between them. Vhen the whole has` been properly adjusted, molten bitumen is poured in through the holes lu inthe outer tubesy, which, as it fills the whole space .e between the two sets of tubes, will on being solidified constitute an impermeable and durable cement. The tapping may be effected in the following manner, Figs.' 13, 14, and 15: After boring a hole of suitable size in the main tube for the reception of a short pipe, Fig. 14, made Qt' india-,rubber and-formed with flanges at both ends, which, when inserted into Vthe. hole of the tube, will press against the inner and outer side of the tube, a suitable collar is then placed'over the ltube and a faucet screwed tightly into it'and into the india-rubber.

Having thus described myy invention, what I claim as new, 'and .desire to secure by Letters Patent, is

. The manufacture of air and water tight tubes or pipes by the process set forth.

In testimonywhereof I have signed my name to this specification before two subscribing Witnesses.

ALFRED JALOUREAU.

Vvvitnesses: A. ZARCHIER, GEO. HUTToN.

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