US94767A - Leonard phle - Google Patents

Description

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@tutti LEONARD PHLEGER-I, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 94,767, dated September 14, 1869.

To all u lwm it may concern Beit known that I, LEONARD Panneau, of the city and county of Philadelphia, and State of Pennsylvania, haveinvented a new anduseful Improvement in Steam- Generators and I do hereby declarethat the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the `accompan yin g drawings, and. to the letters of reference A patented November l, 1864. v

The invention consists- First, of a peculiar-formed furnace, composed of a series of curved tubes, in combination with a series of horizontal and inclined tubes.

Secondly, in securing the ends of the tubes into tubesheets, to which are connected caps or water-ways, of a novel construction.

Thirdly, in arranging on each side of the tubes stand-pipes, which connect atthe upper ends with a steam-drum, so that the ascending steam and water will separate in the drum, by means of shelvespiaced therein, and the water return to the lower series of tubes.

Fourthl y, in forming a steam-generator so as to com- 'bine allthe features hereinbefore set forth.

Figure lis a longitudinal section of my improvement in steam-generators.

Figure 2 is an end elevation. l f

Figure 3'is an end vie-w with the caps removed.

The furnace F is composed of a series of` tubes A, which form the grate-bars, and are curved somewhat in the form ofthe letter U.

The ends of the said tubes A are secured in the tube-sheets S, S1, and S, and connect with a series of inclined andhorizontal tubes, B B B B, by means of cast-iron caps or water-ways, (3,01, G2, and '03, fitted steam-tight tothe sheets. rIhe saids caps enclose the ends ofthe tubes, and are made semicircular in form, and provided with flanges, through which pass bolts or rivets, for the purpose of securing them to the tube-v sheets.

On each side of the tubes, and at the front end of the generator, are placed two stand-pipes, S P and S P', the upper parts of which are curved at right-angles, and provided with, flanges f and f1, for the purpose of attaching them to the steam-drum D,placed above the tubes.

The tube-sheet S1 is secured tothe stand-pipes SP and S P', and connectswith them by means of the` openings O and O1. These openings 'are covered by means of-the cap G2.

Thestearn-drum I) is made of castor wrought-iron, and of any suitable dimensions. The interior of said drum is provided with shelves, L and L', of different. lengths, and placed one above the other, i'n order to more eectually separate the steam `and. Watenand prevent foaming underneath 'the shelf L. And near the front end of drum D are madeI square or othershaped openiugs,0'. It is these openings which connect the steam-drum with the stand-pipes through the necks P and P', the said necks being provided with flanges, f2 andf, for securing them to the flanges f and 'lliile front end of thev drum D is connected with'the centre of the cap C, by means of the return-pipe or bend R P, as shownings. 1 and 2.

The frontpart of the shelf L' extends down, and is curved over the openings O, so'as to check and prevent the water fromreturning through the bend R P.

The tubes A, which form the furnace F, are supported at their rear end by means of the wall W. Im-

' mediately in the rear of this wall, is placed a wall, W,

for deecting the flame and heat (passing between the tubes A) up and around the tubes B B B B.-

The rear end of the generator rests upon a wall,W*, as shown in iig. 1, and is enclosed by side walls of ordinary construction.

The .upper portion of the tubes B B B B is covered by means of a jacket or shell, J, said jacket being provided with an opening which connects with a' smokepipe, S T. The rear portion of the drum D'is supported by means of a standard, d, which rests upon the upper portion of the jacket J.

It will readily be seen, that by the peculiar arrangement of the tubes above described, that a perfect circulation will be maintained in them, whether the combustion be slow or rapid in the furnace, the steam andv water passing in the direction shown by arrows in iig. 1, that is, from the front to the rear end of thetubes, and returning again to the front, from whence it passes to the steam-drum, where the steam and water separates, the steam passing to the upper part of the steamdrum in a dry state, and the water dropping and o'wing beneath the plate L to the front end ofthe drum, where is passes throughthe opening O2, and down the opposite stand-pipe to the cap or water-way C, from whence it passes into the tubes A, immediately beneath the fire, and so continues to'pass around and make a perfect circuit of the generator, p reventing-'theaccumulation of scale or sediment, and eectually overcoming priming or foaming.

A The distribution of the tubes is such that all their outer surfaces are made available as beating-surfaces, so that the ratio of the heating-surface per horse-power is greatly decreased, consequently generators of large `Ior small power can be erected with a comparativelyl preventingleakage of the joints. The front ends of the tubes being riveted to wrought-iron sheets, are not subjectv to injury or leakage'in expanding orcoutracting.

The generator is simple in all its parts, in order to be accessible in case. of cleaning or repairs,l and the tubes, owingto their smallness of diameter, are capable of withstanding a great pressure, hence the danger of a serious or general explosion is obviated.

Having tij-us described my invention, its construction and operation,

What I claim, and desire to secure by Letters Patent of the United States, is-

, biuation with horizontal 1. The arrangement of the curved tubes A, in comaud inclined tubes B B B B, substantially as and for the purpose specied.

2. The construction and arrangement ofthe caps or water-ways C, G, CZ, and C, placed over the eudsof the tubes A, and secured to the tube-sheets S, S1, and S2; also, the arrangement of the plates p and p', for the purpose of allowing the cap C and tube-sheet Si to slide in and out, as and for the purpose speciedf 3. The construction and arrangement of the returnbend R P, stand-pipes S P and S P[,tube sheet S1, with openings O and O1, steam-drum D, with shelves L and L', and necks I and P', so as to operate substantially as and for the purpose specified.

In testimony whereof, I have hereunto set my name,

yin the presence of two subscribing witnesses.

LEONARD PHLEGER.

` Witnesses:

ISAAC R. OAKFORD, M. CAMPBELL.

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