US79172A - Improvement in steam-geneeators - Google Patents

Description

gleiten y tatrs datent @fitte Letters .Patent No. 79,172, dated June 23, 1868. f s

IMPROVEMENT IN STEAM-GENERATORS. i

dige Stintino filata in Via ilpsc Enters zxtart mit mating :pant nf tige sans.

TO ALL WHOM I'I MAY CONCERN:

Be it known that I, ROBERT WILBE, of the city of Philadelphia, in thc State of Pennsylvania, havel invented a new and useful Improvement in Steam-Boilers or Generators; and I do hcrcbydeclare that the following is a full, clear, and exact description of the construction and operation of the same, reference being ha-d to the accompanying drawings, making a part of this specification', in which- Figu're 1 is a transverse section of a connected pair of the said improved boilers or stcam-generators, 0n the dotted line v 'zu of tig.' 2, and i Figure 2 a longitudinal section of the same, on the dotted line fr y of fig. 1

Like letters of reference indicating the same parts when in both figures.

My improvement relatesfto those flattened steam-boilers or generators which have theupper and lower sides of their shells stayed to each other by close vertical longitudinal partition-plates of iron, so as to divide their respective interiors into several long, distinct; uncommunicating steam-generating chambers.

And my invention 'consists in perforating the said partition-plates withmhumerous holes, as hereinafter described, for the purpose of allowing the contained water. andsteam free communicationiwith all the different divisions. l l A My invention also consists in the application tosteam-boilers or generators, having the perforated vertical longitudinal partition-plates described, of vertical transverse partition-plates across the divisions produced `by the said longitudinal partition-plates, substantially as hereinafter described, for the purposeof preventing any injurious surging of the contained water of the boiler or generator, when the same is subjected to a longitudinal or pitching motion, as in a steamer or other carrier. i p

My invention also'consists in the application to said'boilers,.arrangcd with one directly above another, as hereinafter described, of vertical overflow-pipes, for the purpose of aifording an open communication and. equality of pressure in the said different boilers, and also for the purpose of allowing the water to be fed to the lower boiler, by overflows from the upper one, substantially in themanner hereinafter described.

And, nally, myinvention also consists, in combination with said boilers, arranged with one directly above another, and connected together by means of the said vertical overliow-pipcs, in the employment of a iloat in the lower boiler, in connection with a feeding-cylinder on the upper'boiler, arranged to operato togetherin ,the manner hereinafter described,'for`the purpose of feeding the said 4boilers automatically.

Referring to the drawings, A A and B B areV sections of two of the improved boilers, arranged with one above the other, and leaving a suitable return-line space, F, between them, a a and b Zz' being the upper and the lower portions ofthe respective shells of the said boilers, a a and b b the respective perforated longitudinal partition-plates, and a"A a" 'and b" 6" the respective transverse partition-plates; 4 C, the rotary feeding-cylinder within a suitable case, D; E, the watersupply pipe; GG, the overllow-pipes, and I, the float` in the lower boiler B B. i

The exterior shells of the boilers A and B consist of a series of plates, of boiler-iron, bent and riveted together' so as to producea long, flattened boiler, with convex ends, tied together by the perforated vertical longitudinal partition-plates a b, so as to produce a series of long, distinct chambers, communicating with each other through the said perforations in the partitions a substantially as represented in thc drawings. Each of the said chambers is divided, by thevertica'l transverse partition-platos a" bf, into separate compartments, the said partition-plates a. being only about half the height of the respective boilers in which they are fixed, substantially as represented in the drawings. j

The said boilers A and B are arranged sothat theonc, A, will be directly above 'the other, B, leaving a return-flue, F, between them, and are connected together by means ofthe open overlow-pipcsG G.

These pipes G G arc each secured in a vertical position through thc respective shells of the boilers A and B, the lower 4end of each pipe opening fully into the lowcr` boiler, B, without projecting downward Ainto the same, and thc upper end of cach projecting upward into the upper boiler, A, and oponinginto the same at the intended water-line, or at about half thc height of the boiler A, substantially as represented in the-drawings.

i rr; will f The two boilers, A and B, are intended to be walledin" in any suitable manner, so as to aiorda irespace or furnace under the front end of the lower boiler, B, with a direct flue extending back therefrom, and

up behind the rear end of the said boiler into the return-duo I, between the two boilers Aand B, the latter ilue continuing upward in front and back over the upper surface of boiler A, to the' usual escape-due or' chimney, the exposed parts of the overflow-pipes G` G, and upper surfaces of the boilers A and B being, ot course, protected from any injurious action of the dames by a covering of fire-brick or any suitable bad conductor of heat.

The lloat I is a large, hollow, air-tightsphere of thin metal, which has a rigid stem, i', that will slide easily vthrough any suitable packingfbox, z', xed on the upper side of the lower boiler, B, so as to allow the said ball to float, or rise and fall with the' surface of the water contained in the said boiler. y

The feeding-cylinder Cv is a hollow vessel, having an opening, c', through one of its sides, and is fixed concentrically upon a shaft, c, so that it can be rotated thereby in a corresponding case, D, which is fixed upon the upprside ofthe upper boiler, A, substantially as shown in the drawings.

The lower side ot` the said case D communicates with the boiler A, through an opening, d', in both, audits upper side communicates with thc water-supply pipe E, through a like opening, and which corresponds 'with the opening c in the rotary cylinder C. Between the outer side of the cylinder C and the inner side ofv its containing-case D, there is applied a suitable packing, 0', for the purpose of producing a steam-tight joint between them. The cylinder-shaft c extends forward to a short distance over the front end of the boiler A, and has thereat a fast pulley, H, and a loose pulley,-H', wherehy alternate rotary motion and rest can be given y to the cylinder C, by means of a suitable band operated by any independent motive-power, not necessary to be shown'iu thevdrawiugs.

Attached to the lower boiler, B, there isn bent lever, k, which has its fulcrum at lc', and its power-end jointed to the projecting upper end ot' the stem e" of the float I, whilst its weight-end extends upward in front .of the upper boiler, A, and forms a loop, h, beside the pulleys H H', and through this loop h the required band" is intended to pass alternately to the said pulleys H H.

/The lever K isarranged in its relation to the float I and pulleys H H', so that when the contained water of the boiler B is at its proper height, or water-line, the iloat I will hold the looph directly opposite to the side of the loose pulley H', and thus allow the motion ofthe band to continue without rotating the cylinder Y C, and so that when the water shall fall any considerable distance below its proper line in the boiler, theiloat p I, falling with it, will cause the loop-end of the said lever Kto be brought over to the position shown in the drawings, thus shifting the band to the fast pulley H, which latter, being rotated thereby, will give rotary motion to the feeding-cylinder C.

Asteam-boiler or generator, constructed in the iiattened form and strengthened by staying the upper and lower portions of the shell together by close, vertical partition-plates, which divide it into a horizontal series of 'separate longitudinal steam-generating apartments, as heretofore, will require less ymaterial in its construction, and be stronger than if the same number of chambers of equal capacity were produced by so many separate cylindrical boilers; and hence the said attened form'of construction described has peculiar advantages overthe old separate cylindrical boilers arranged side by side; but, as there has'not heretofore been any provision made to equalize the height of the water in the different apartments of such ilattened boiler, it has not been brought into general use. 4 y

^ It will be seen that, in the operation ot my herein-described improvement, the said longitudinal' partition plates a or b, being each perforated with numerous small holes, the required uniformity inthe depth ot` the o water, as well as in the pressure of the steam in the different apartmeutsfwill be attained, and in the most simple manner,.and, also, that when the boiler is subjected to a transversely-oscillating motion, as from the rolling of a sea-steamer, the surging of the contained water will be suiciently prevented without interfering with or varying the required uniformity in the. pressure of the steam throughout all the different longitudinal apartments .ordivisionsz f It will also be seen that while the transverse partition-plates a!" or b divide each of the said longitudinal t apartments ofthe boiler into several separate apartments, each corresponding in height with the intended height of the'water-line of the boiler, as shown and described, the surging of the contained water when the boiler is subjected to a longitudinally-oscillating motion, as from the pitching motion oi a steamer in a rough sca,- will be suiiiciently prevented by the said transverse partition-plates, and this without preventing free access of any one to the different apartments, when desiredfor the purpose of repairs or cleaning. When two of the said boilers' A and B, constructed as described, are arranged with the one above the other,` f witha return-liuc between, as shown in the drawings, they will be connected together, so as virtually to produce a single'steam-gencrator, by means of the overflow-pipes G G, because the said pipes 4will constantly serve as means of open communication `between the upper and the lower portions ofthe said generator, and it will, therefore, be seen that as theupper ends ot' the said pipes G G extend upward no further than t-o the intended g vwater-line of the upper boiler A, and downward no further than to pass through the shell of the upper portion 'only of the lower boiler B, as shown in the drawings, and being open at both ends, and the intended water-line of the said lower boiler B never being higher than the transverse partition-plates bm 6', the said pipes G G will always remain open, and consequently allow the pressure ofthe steam to be at all times alike in both A and B. It will also be seen that as the iloat I will rise and fall in accordance with the rise and fall ot the surface of the water in the lower vboiler B-the proper water-line being about the height of the transverse partitionplates b 17', and the oat,`levcr, and pulleys being relativelypadjusted for the purpose---the lever Kwill be caused toshift the running band (before mentioned, but not shown,) from one'to the other ofthe pulleys H H', and thus give alternate uiotiou and rest to the feeding-cylinder C; and that said feeding-cylinder, when being rotated, will, at "each rotation,`receive from the supply-pipe Efced-water equal to its capacity, and discharge the same into the upper boiler A and that, therefore, when the water in the lower boiler becomes reduced considerably below its proper water-line, the llo'at I, following, and consequentlyacting upon, the lever K, will shift the said running band frornthc loose pulley H to the fast pulley H, and thus cause the said cylinderl C to rotate, and thereby discharge water into 'the boiler A, as stated, until by overflowing and falling through the .pipes G'G, a' suilicient quantity of water reaches the lower boiler B to raise the supface of the sauie therein to its proper waterline, and, at the same time, to 4cause the float I to -move the lever K, so as to shiltt the band from the fast pulley H to lthe loose pulley H', and thus stop the 'feeding-motion of the cylinder C. f

As the shell of a llattene'd steam-boiler or generator has before been constructed in' the form and manner described, andthe boiler divided longitudinally into separate, uncommunicating steam-generatng apartments, by means of close, vertical tieparttionsI wish it to he understood "that I do not consider myself to be the lrst inventor of such attened, many-chambered boilers c'r generators; but having fully described myimprovement,

What I claim as new of my invention, and desire to secure by Letters Patent, is confined tothe following, viz

1. I claim, in a steam-boiler or generator, the perforated dividing partition-platesaor b, substantially as and for the purpose described. Y

2. In combination with o steam-boilercr generator, the vertical transverse partitionrplatos af" or b, the -same being constructed and arranged substantially as and for the purpose described.

3. I claim the vertical overflow-pipes GG, constructed `and arranged substantially as and for the purpose described.4

4. 4In combination with two or more steam-boilers or generators A and B, arranged with one directly above another, and connected together by means of the open vertical overflow-pipes G Gr, as described, the employment of the float I in the lower boiler, and the feeding-cylinder C, with its Ycase D, on the-upper boiler, the same being connected together by the lever K, pulleys H H', and any suitable moving band, and the whole being arranged to operate together, substantially as and for the purpose described.

' Y 'ROBERT WILDE.

- Witnesses:

BENJ; Monson, JonN WHITE.

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