US106041A

US106041A - Improvement in pipe-couplings

Info

Publication number: US106041A
Authority: US
Publication date: 1870-08-02
Anticipated expiration: 1887-08-02

Description

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.Leners Patent N, 106,041, dem: August 2, 1370,

IMPROVEMENT IN' PIPE`OUPLING-S.

The Schedule referred to in these Letters Patent and making part of the same To all whom. lit may concern:

Beit known that I, Louis ALmtAeDnn FAnJoN, A

of Brussels, in the Kingdom of Belgium, civil engi'- neer, a French' subject,l have invented or discovered new and useful Improvements in an Apparatus fol' Forming and Joining the Ends of Iron and other Tubes or `Pipes; and I, thesaidLoUIs ALEXANDRE FAItJON, do hereby declare the nature'oi` the said in vention, and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement thereof, that is to say:

This invention consists ofthe improved mode hereinafter described,of forming the joints of' pipes cr tubes, whereby greater'` simplicity and economy ar'e attained.

The ends ofthe pipes on the outside are formed ofithe body of'the said' lather greaterdiameter than pipes, tapering down vso as to form a c onical collar or projection round thel ends ot'- the said pipes.

'A strip of .lead is shaped by casting or rolling, so

:as to tit the conicalprojections on' the ends of two pipes, and the said strip of lead is formed with a central rib underueatlaavhich,said rib projects into a space lett betweenthe ends of the pipes, to prevent them from touching each other, and to allow of their expanding.

The said strip of lead placed round the respective `ends of the pipes, and its tworndsrare joinedby a tenonformed on one end of the" strip taking into a jchannel or space cut in the other end o f the said strip, to receive the said tenen.

' The said strip is'held in position` and pressed onto the ends of the pipes byiaband of iron rolled specially for the purpose, itslowe'r urtiice being shaped to tit the lead on the pipe, audits upper surface being slightly conical, that is to say, thicker en one side than on the other. A

The said band of iron :is bent round to form a ring or hoop, which can open, to pass onto the lead, and, its diameter being lather slnaller than that ot' thelead, the said ling or hoop forms a circular spring to press upon-the said lead and hold it in position, and the said iron hoop or circular spring is'fnrther pressed onto the lead, and its ends are' caused ,to meet,"or nearly so,.by`a presscollar of the following construction: j

A pieeeot' iron is formed at its lower' end in shape like a crescent ora portion of a circle, to [it and rest upon the circular spring on the 4pipe-ends.

0n thc upper surface of the said crescent-piece4is a lng, projecting upward, to which is jointed one lend of alcver, and also one end of a belt of ironl or steel, which said belt passes round the circular spring on fiuous portions of lead are thc pipe-ends, and is jointed at its other end to the.

said lever ata littledistancc from that end which projecting lug of the crcscentis jointed to the piece.

By turning the lever the belt is drawn'tight round the pipe-ends, and closes the circular spring upon the lead, compressing the said lead andforming alperfectlj" tight joint.

The' circular spring being thus firmly fixed, a` ring or hoop, the inner surface of which is conical, to tit the outside conical surface of the circular spring, is driven onto the said sprintf, and firmly binds the whole together.

`In some cases, two binding-hoops maybe used, one on eachside of the'joint. The protruding or superthen punched up, as is usual in such cases.

Pipes to he joined together according to this invention -lnay have their ends molded inthe following' manner, in order that such ends, with their conica-l collars, may he cast perfectly smooth and regular.

A circular bottom eat-.h side, through each of which lugs passes :theybolt. t

-Upou the said bottom yplate is mounted an iron cylinder, with lugs correspoluling with. the lugs on the lower plate.

The'said cylinder is formed of two half-cylinders, being divided longitudinally through its axis or cellter, and through the said lugs, so that the two half cylinders may be separated laterally, but, being keyed to the lower plate,rcannot rise. The saidhalf cylinders are secured together by a hoop of iron placed round them.

'lhe pattern of the pipe-end, having the conical collar orprojection upon it, is divided into five segmental pieces, each formed at the baclLwit-h a dovetail groove, into which takes a dovetail projection up on a conical center-piece vmoved by a handle.

` The -said pattern is placed-in the center of the cylinder and bottom plate, and the space between the cylinder and pattern is filled' with molding-sand, which, being suitably pressed and stamped, forms thc mold for the outside of the pipe.

In order totake the molds out of the frame with, out injuring it, the iron hoop is taken olf the outside cylinder, which then separates into two pieces, which may be easily re'movcd.

The centerpiece is then removed from the segmental pattern, and each of thc segments may be -taken out without injury to the mold, which is then ready for use, and maybe added onto'the mold of the body of the pipe.V

plate is formed with a lug on central rib, b, to project into the space between the' It is desirable to give back to the circular springs, above mentioned, their exact sectional shape, which nray have been injured dnrirrg the process of bending them into a circular fornr.

For this purpose, a cylindrical die, the innersurface of which is conical, to suit the required shape of the outside of thecircular spring, is mounted on an ironl annular plate, and secured thereto by bolts or stuts.

The circular spring-having heen driven into the said die, three or nrore segmental dies, having on their orrter surfacethe reqrrired shape for the inner surface of the said circular spring, are placed within the said spring. and, hy means ot' a. conical plug driven into the center of the segment-al dies, the said dies are forced against .the inner surface ofthe said spring, and give it its r'equired shape.

-Having thus explained the nature of my my said invention, I will proceed to describe, with reference to the accompanying drawing. the manner in which the same may be performed,

Figure 1 represents in elevation', partly in section, three pipes, A A A, joined together according to this, inveption.

-'Ihe ends of the pipes A, on the outside, are formed with conical projections or collars, a a o', nporr them.

4When the pipes are set end to end, so as nearly to -touch each other, a st-rip of lead, b, shwn in plan at fig. 2, shaped by casting or rolling, so as to fit the collars a of the pipes, and having underneath a said pipes, is placed rorrud the respective ends of the pipes, and its two ends are joined by a tenon, lr', tig. 2, on one end of the strip, taking into achannel or space, bi, cut in the other end of the said strip b. The said strip b is held in position and pressed ,onto the ends of the pipes A by a hand, c, made of ir'orr, rolled specially for the purpose, its lower surface beiug shaped to fit the orrtside .ofl the lead b, and its upper surface being slightly conical, as shown The said band of iron c is bent round to forru a ring, which can open to pass over the collars a a and onto the lcadb, where it acts as a spring -to press upon tlre-lead and hold it in position, and the circular spring c is further pressed onto the lead', and its ends are caused to meet, or nearlyso, by means of a press-collar, represented in front elevation atti". 3, and iii plan at tig. 4

In these Figures 3 andd-J 'A A represent parts of? the pipes, and a, iig. 3, the end of one of the pipes. 1g is the strip of lead, and c, the circular spring. 'Ilre press-collar is composed ot a pieccof iron, d, the lower end of which is curved so as to Afit and rest upon the circular spring c, at d' d".

` The upper prut of the piece d forms a lug, d, to which is jointed, at d, one end of a lever, e, and also one end, f1, of a belt of iron or steel, f, which passes round the circular spring c, and at its other end f, is jointed tothe lever e at c.

Near each end of the belt fis an opening 'or eye which hooks onto a projection, g g, on the links or ends flf2 ofthe said belt, so as to enable the said helt to he readily connected to or disconnected from its end sf and f. f

WhenI the press-collar is mounted, as shown in the drawing, by turning the lever c on its fulerurn di, the belt f is drawn tight round the pipe-ends, and closes the circular spring c on the lead'b.

The press-collar is then removed from the circular ring c, and a ring or hoop of iron, D, fig. l, the inner surface of which is conical, to it the outer surface of the circular spring c, is driven onto the said circular spring c, and firmly binds the whole together'.

In some cases, two binding-hoops may be used, one on each side, as sho'wn at Dl D, tig. 1; the protruding portions of the lead b are thcn punched up, as is usual in such cases.

When it is requiredto disconnect pipes joined to- A getlrcr according to this invention, the binding-hoops are driven otf from the. circular springs c, and the said circular springs are taken oif from the lead b the lead isthen removed, and the pipes may be pl in another position andagain joined together, if rel quired, with the same facility.

I will now proceed to describe the rrrode which I prefer to adopt for molding the ends of pipes to vbe joined together according to this invention, in order to the said ends, with their conlcal collars, being cast perfectly smooth and regular.l

Figure 5 represents a' vertical section, and

Figure 6; a plan of a molding-frame constructed according to this part of my invention.

a is a circular baseyplate, fonncd with -a lug, al on each side, through which lrrgs pass the key-bolts a a. v

b b' are two half cylinders, secured together by a ring, c, placed round them.

The two half cylinders, b b', when secured together, form one cylinder, capable of being separated laterally at its lugs b l, which pass onto' the keybolts a a, yand are secured to the base-plate a hy keys a a.

dis the pattern of the pipe-end with its conical colla'r formed upon it at d.

llre'said pattern is divided into tive segmental pieces, c c c c e, each formed at the back with a dovetail groove, into which takes one of the dovetailprojections f f f f f on a conical center-piece, g, moved by a. handle, g'.

The said pattern dis placed in the center of the cylinder b b1, and the space h between the pattern and cylinder is filled with molding-sand, which, hering suitably pressed arid stamped, and its upper surface having been smoothed hy a scraper, i, forms Y the mold for the outside of the pipe-end. In order to take the said mold out of the frame without injuring it, the hoop or ring c is taken o the orrtside of the cylinder b b, which then separates into two pieces, which may he removed laterally.

The. center-piece is then drawn out of the segmental pattern, and cach of the segments a ce e c .may be taken out vofthe mold, which is then ready for use.

My apparatas for giving back to vthe circular I springs c, iig. 1, their exact sectional shape, which may have been injured during the process of 4bending them, is represented in vertical section at Figure 7, and in plan at Figure 8.

ais a cylindrical die, the innersurface of which is conical, to suit the required shape of the outside of the circular spring.

The said die a is mounted `on an 'annular-hase plate, b, to which it is secured by studs or bolts, y

The circular springs c, having been driven into the die a, three or more segmental dies, d d d, having on their outer' surface the required shape for the innersurface of the spring c, are placed within the said spring, a'nd a conical plug, e, is driven into the ccnter ot" the segmental dies d d d, and forces the 'said dies against the inner surface of the circulal` spring c, thus imparting to the said spring its required shape.

Having thus described the nature of my said' invention, and means for carrying the sameiinto clamping-hoop or hoops D, substantially inthe manv effect, Y I'elaim as my inventioni l The `pipe-eouplii1g herein described, formed by a,` ribbed leaden ring or muti' b b1, embracing the ad- Witnesses: jacent ends of two pipes, A a, around 'which snch D. P.HOLLOWAY, ring is tightly clamped by a spring band, chaud F. M. HEATON.

ner set forth.

LOUIS ALEXANDRE FARJON.