US541830A - Island - Google Patents

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210 Model.) a Sheets-Sheet 1. P. BENTZEN & G. P. OLSEN.

BOILER. No. 541,830. Patented July 2, 1895.

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BOILER.

No. 541,830. Patented July 2, 1895.

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BOILER. No. 541,830. Patented July 2, 1895.

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PETER BENTZEN, OF NEWPORT, AND CHRISTIAN F. OLSEN, OF BRISTOL, RHODE ISLAND.

BOILER.

SPECIFICATION forming part of Letters Patent No. 541,830, dated J'tily 2, 1895.

Application filed February 4, 1895. Serial No. 537,177. (No model.)

To all whom it may concern.-

Be it known that we, PETER BENTZEN, residing atNewport, in the county of Newport, and

CHRISTIAN F. OLSEN, residing at Bristol, in the county of Bristol, State of Rhode Island, subjects of the King of Denmark, have invented certain new and useful Improvements in Boilers, of which the following is a full, clear, and exact specification.

The objects of our invention are, first, to construct a-tuloulous boiler which ,shall'pro vide for an enlarged grate and combustion area; second, to provide series of manifolds connected with a plurality of water vessels and generator tubes; third, to construct a de tachable, sectional casing to inclose said boiler, and, fourth, to make the said boiler in such ainanner that the greatest amount of efficiency shall be obtained, without sacrificint, simplicity of construction, or econoinyin cost. With these objects in view, reference is had to the annexed specification and drawings, in which Figure 1 is a side elevation of the complete boiler, with a portion of the casing broken away. Fig. 2 is a front elevational view of the complete boiler of Fig. 1, with one-half of the front casing broken away. Fig. 3 is an end elevation of a series of manifolds attached to a water vessel. Fig. 4 is a side elevation of a portion of one row of said manifolds. Fig. 5 is an enlarged side elevational, broken view of a single manifold with its generator pipes mostly broken away. Fig. 6 is aside, broken view, of an improved grate bar; and Fig. 7 is a cross-sectional view of Fig. 6.

A, A represent two horizontally disposed water vessels, a given distance above and between which is located a steam receptacle B,

to, the outer casing I.

These manifolds E are constructed preferably as shown in Fig. 5, and in such construction consist essentially of a casting having an opening e running therethrough, with a pinrality of lateral projections e and openings formed therein, communicating with the said main opening 6; the generator tubes G being connected with said projections. A pro jecting portion or pipe F continues from the lower part of said manifold, and is joined, by

means of a union nutfto projections f cor; responding in number to the number of manifolds and arranged along the top of each of j the said water vessels. The said projections are preferably threaded, and arranged in alternate rows, if desired (having openings communicating with the interior of their said respective water chambers), and the union nut, fitting with its flange over a flange on the pipe F is adapted to be screwed tightly down upon the said projection f to connect the manifolds therewith. Piugs e are screwed into holes, which admit of access to the end of each generator tube, opposite the openings in the projections e. The said manifolds may also be arranged at different and alternate heights as shown in Figs. 1 and 2. It will be noticed 'in the latter view that the lowest in position of the generator tubes, are a sufficient distance above the grate D to allow of a very large fire box; in fact, larger than the fire box in similar tubulous boilers.

The tubes G are preferably formed straight from the manifolds and areinclined upwardly, as shown, toward the centerof the fire chamher, where they are bent, approximately, as at g, g, and g and are then connected with the separator, in the upper portion thereof, in the usual manner.

From the top of each manifold extends upwardly a generator tube H, which compose a wall of generator tubes, whichare preferably conformed to the shape of, and are adjacent This wall of generator tubes utilizes such heat as would otherwise come in contact with the said casing and be cooled or lost for generating purposes. It

will be noticed furthermore that the shape given to the generator tubes G forms the combustion chambers J. J, which utilize, by reaon of better combustion, gases which would otherwise be of little use, or would pass off inelfectnally through the stack.

At each end of the entire series of generator tubes is arranged a manifold, considerably above the general level of the other manifolds, and from each of these manifolds continues a set of generator tubes K, which tubes are located adjacent to the front and rear walls of the casing I, and are shorter in length and differently bent than the other set of tubes. This construction prevents the waste of gases at the ends of the said casings; so that the full combustion taking place within the casing is utilized, and, by providing the combustion chambers, such combustion is enlarged and facilitated, while the gases will enter the uptake and stack at a comparatively low temperature Located within the steam receptacle B is a separator plate L which is preferably corrugated laterally, as shown in our former appli' cation, and extends approximately thelength of the said receptacle, to intercept the flow of steam from the generator tubes. Return pipes M M connect the lower partof the separator B with the two water vessels A. A, to allow a ready return of condensed, and flow of feed water, to the said vessel.

A feed water heater is represented by a number of lengths of pipe N, which, leading from an i'njector or pump enter the casing I, at N and are located within one of the combustion chambers J, and passing under the receptacle B, as at 'n, continue their folds, as at N,in the opposite combustion chamberJ, (not shown) where the said heateris connected as at j to the said receptacle B. A feed water valve, to a pipe leading from a donkey pump, is indicated at J.

A steam feed pipe 0 is horizontally arranged within the receptacle B, and under the separator plate L, and passes out through the said receptacle B, at P, outside of the front casing I, the ends of which receptacle project through the said casing; the ends of the water vessel also passing outside of the said casing where the return pipes M, M, connect the said receptacle and water vessels together. Fire bricks Q are disposed along each side of the fire box and against the inward surface of the water vessels, to protect them; also at each end of easing.

The casing, I is formed and put on in sections, similar to the ones marked R, S, T, U, and any section thereof can be removed independently. The said sections as, shown are retained in place by the cleats or straps r, s, t, u, t), or by any other suitable means, and are intended to be removed through the' coal bunkers, or the deck, as found convenient and according to the location of the boiler.

The ordinary self-closing doors are provided for the ash pit, and the said ash pit is of commonconstruction. ThegratebarsVt arehowever formed triangular in cross section, as

shown in Figs. 6 and 7, and have each a collar to shrunk on, near their forward ends. Holes 00 are formed in the front of the casing as shown. Transverse grate bar supporters y suppport the said grate bar to, and the said collars to, being, when the said bars to are in place, located within the holes X of the said front plate, while the forward ends of the said bars protrude beyond the said collar to, and serve as an effectual means to prevent escape of steam in case of leakage, or of gases, into the stoke hole, from within the casing I.

A baffle plate Z is provided under the separator to prevent by reason of its glancing the heat from, and shielding the separator, excessive ebullition or rising of the water therein.

In the event of one or more tubes being defective or showing leakage. the said condition can be readily corrected by fixing a plate in the union nut to cutoff steam from the lower part of a manifold, and by plugging the opening of said defective tube at its entrance in the receptacle.

The construction herein set forth provides for readily removing or repairing any setof generator tubes or part of the generator; and the extremely large grate area provided in this boiler renders it suitable for burning either hard or soft coal, and it is thus capable of accomplishing great results without forced draft.

Having now fully described our invention, what we claim, and desire to secure by Letters Patent, is

1. A steam generator having a plurality of water vessels and a steam receptacle, a'plurality of bent generator tubes connected in two series, at one end with said steam receptacle, and each series connected at their other ends with a manifold, and a connection formed between each of said manifolds and said water vessels, said manifolds having direct connection only with said generator tubes, substantially as set forth.

2. A steam generator having a plurality of water vessels, a steam receptacle, generator tubes connected with said receptacle, rows of manifolds connected detachably with each of said water vessels, the said water vessels being independent of each other, and a connection formed between said tubes and said water vessels, the said manifolds connecting directly only with said generator tubes and with their respective water vessels,substantially as set forth.

3. A steam generator having a plurality of water vessels, and a steam receptacle, bent generator tubes, secured in series to said receptacle, and manifolds connected with, and projecting upwardly from, the upper part of each of said water vessels, said manifolds having direct connections each only with a series of said generator tubes and with their said respective water vessels, substantially as set forth.

4. A steam generator having a plurality of IIO Water vessels, and a steam receptacle, generator tubes connected with said receptacle, manifolds connected with each of said water vessels, and arranged in alternate rows upon same, and connection formed between said tubes and said manifolds, substantially as set forth.

5. A steam generator having a plurality of elongated Water vessels, and asteam receptacle,'the latter located above and between the former, generator tubes connected with the steam receptacle and passing in a partially curved form to, and connected with, the said Water vessels, water heater pipes connected, and located adjacent to the said steam receptacle and within arches or concavities formed by the said generator tubes, the said pipes connecting with a feed valve and with the said steam receptacle, and adapted to connect with an injector, substantially as set forth.

6. A steam generator having a plurality of elongated 'water vessels and a steam receptacle, the latter located above and between the former, generator tubes connected with the steam receptacle and passing in a partially curved form to, and connected with, the said water vessels parallel water heater pipes connected with bended ends and located adjacent tothe said steam receptacle, on opposite sides thereof, and Within arches or concavities formed by the said generator tubes, the said heater pipes connecting with a feed valve and with the said steam receptacle, and adapted to connect with an injector, substantially as set forth.

7. A steam generator having two Water vessels, the said water vessels being arranged each at approximately opposite "sides of the said generator, rows of manifolds arranged along, and supported by, said water vessels, generator tubes connected in series with said manifolds and with a steam receptacle, one

of the said manifolds, at each end of the aforesaid rows of manifolds, being raised above the other of said manifolds, the said generator tubes of the said outer manifolds being shorter and running through a different area than the generator tubes of the other manifolds,-substantially as set forth.

8. In a steam generator having a Water vessel, a steam receptacle, and generator tubes connecting the said parts, a removable fireproof casing effectually inclosing said generator, and means, consisting of elongated pieces, for overlapping the seams of, and for retaining in place the sections of said casings, substantially as set forth.

In testimony that We claim the foregoing We have hereunto set our hands this 19th day of January, 1895.

PETER BENTZEN. CHRISTIAN F. OLSEN. Witnesses:

TH. SEH. POEKEL, O. S. POEKEL.

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