US757413A - Steam-generator. - Google Patents

Description

' No. 757,413. PATENTED APR. 12, 1904.

' H. E. RIDER.

STEAM GENERATOR.

V APPLIOATION FILED APR. 24, 1901. RENEWED DEC. 29, 1902. N0 MODEL.

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No. 757,413. PATENTED APR. 12, 1904.

EJE. RIDER. STEAM GENERATOR.-

APPLIOATION FILED APR 24, 1901; RENEWED D150. 29. 1902. N0 MODEL. I 3 BEEETS-SHEET.2.

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PATENTED APR. 12, 1904.

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UNITED STATES Patented April 12, 1904,

PATENT OFFICE.

HERFERT E. RIDER, OF NEW YORK, N.- Y.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent N0. 757,413, dated April 12, 1904. .Applioation filed April 24,1901. Renewed December 29, 1902. Serial No. 137,066. .(No model.)

To all whom it may concern:

Be it known that I, HERBERT E. RIDER, a citizen of the United States, and a resident of the borough of Manhattan, in the county of New York, city of New York, and State of New York, have invented certain new and useful Improvements in Steam-Generators, of which the following is a specification, refer ence being had to the accompanying drawings, forming part thereof.

My invention relates to steam-generators; and it consists in the provision of improved means for insuring the delivery of dry steam from the boiler or generator and for the effective prevention of priming, such means consisting of a reflecting-plate interposed between the water-line and the steam-outlet of the generator, and in making this reflectingplate of such construction that it may be collapsed and readily removed through a handhole, and in the combination of such reflecting and separating means with steam-generator-tubes terminating above the water-line, and more particularly in the combination of such reflecting means with loop-shaped generator-tubes through which an active circulation is effected, such as are shown and claimed in my application for Letters Patent filed July 17, 1900, under Serial No. 23,885.

My invention also includes various improvements in construction and combinations of parts, as hereinafter particularly described.

I will now describe the construction of steam-generators illustrated in the accompanying drawings and will thereafter point out the invention in claims.

Figure 1 is a vertical sectional elevation of a steam-generator embodying my invention. Fig. 2 is a horizontal section of the same on the line 2 2, Fig. 1. Fig. 3 is a horizontal section of a modified construction. Fig. 4 is a vertical sectional elevation of the same.

The steam-generator illustrated in Figs. 1

by brackets 5 5, shown as riveted to the shell (Z and bolted to the casing a and consisting of vertical webs and flanges, soas not to mate-v rially impede the circulation of the heated gases upwardly from the combustion-chamber 6 through the annular space between the shell 0? and casing 62;, in which the supportingbrackets are located and out through the'uptake or flue connection 0. The lower portion of the interior of the casing forms the combustion-chamber 6.

The shell 0? is provided at the top with a head It, which may be secured thereto by riveting and is closed at the bottom by acrownsheet z', which may be riveted to the sides of the shell in the usual manner. A number of looped or U- shaped generator-tubes j are supported in the crown-sheet and have their looped portions projecting into the combustion-chamber and their ends terminating in the interior of the shell. The two ends of each tube 7' are of unequal length, the shorter end connecting with the interior of the shell at a point below the water-line, preferably at a point in close proximity with the bottom of the shell, and the longer end connecting with the interior of the shell at a point above the water-line, and hence opening into a space which forms the steam-space of the shell. As a result of this construction the generatortubes have two points of communication with the interior of the boiler, subjected to different pressures, the gravity of the water above the shorter end of the generator-tube being constantly exerted at the shorter end of the generator-tube and a constant and effective circulation through the tubes will be caused thereby. Also as a result of this construction the steam escaping from the longer end of the tube does not have to pass through the water in the boiler, but passes from the tube directly into the steam-space. I have found, however, that the circulation through the looped tubes is so rapid that particles of water are carried with thesteam out of the upper ends of the looped tubes and into the steam-space, and for the purpose of effectively preventing the delivery of water with the steam through the delivery-pipe m and doing away with the necessity of a superheater or water-separating trap I provide within the boiler a separating device consisting of a refleeting-plate 7, arranged within the boiler directly above the upper ends of the loopshaped generator-tubes j, and which receive the impact of the upwardly-flowing steam and water particles escaping from these upper ends of the generator-tubes and effectually separates the water particles from the steam. The plate 7 is sufiiciently large to interpose a reflecting-surface to the upper ends of all of the generator-tubes, but does not entirely fill the boiler, leaving a sufiicient annular space for the upward circulation of the separated steam. I also provide for the insertion and removal of this plate 7 through a hand-hole by making the plate of several slightly overlapping sector-shaped parts and fitting the same rotatively upon a central axis and arranging these sector-shaped parts in diiferent planes, so that they may be rotated into such position that one will be above another and the total width will be only that of a single sector-shaped part. This construction is illustrated in Figs. 1 and 2, and the plate 7 there shown is centrally supported on across-bar 8, riveted at its ends to the sides of the shell, the central portion 9 of the plate being bolted to the middle of the cross-bar 8. A hand-hole closed by a plate 10 is shown in the head A, through which the sectional plate may be inserted or removed.

In the construction shown in Figs. 3 and 4 the reflecting-plate 7 is made in one piece, supported by brackets 11 11, shown as secured to tlfielplate by bolts and riveted to the boilers e In the construction shown in Figs. 1 and 2 the loop-shaped generator-tubes j are secured in the crown-sheet 2', whereas in the modified construction shown in Figs. 3 and 4: the loopshaped generator-tubes jare secured in groups in plugs is, these plugs being shown as externally screw-threaded and screwed upwardly into the crown-sheet. To further strengthen the boiler, stay-bolts 17 are provided, passing through the head it of the boiler and through perforations in the plate 7 and into the tubecarrying plugs 76.

In the construction in Figs. 3and 4 the head it of the boiler is removable, being bolted to a flange at the top of the shell, and the plate 7 is removable as a whole after removal of the head k, and the plugs in are also removable; but the removal of the head h and plate 7 will permit access to all portions of the interior of the boiler which will need to be cleaned, as the rapid and active circulation through the generator-tubes j will keep their inner surfaces at all times clean.

The construction of boiler illustrated in Figs. 3 and 4 is adapted for use on automobiles, the heating part consisting of a naphtha or vapor burner g, supported on brackets 12 and having draft-openings 13 therethrough and gas-escape orifices 14 arranged about these openings. The vapor enters through nozzle 15 and takes up the required amount of air for a Bunsen flame at the funnel-shaped mouth 16.

It is evident that various modifications may be made in the constructions above described within the spirit and scope of my invention.

What I claim, and desire to secure by Letters Patent, is-

1. The combination, in a steam-generator, j of a combustion-chamber, a shell, and one or more generator-tubes having or each having a looped portion extending from the shell into the combustion-chamber and exposed freely on all sides to the heated gases therein from 5 the point where it leaves the shell to the point where it again enters the shell, and having ends of unequal length, the shorter ends terminating in the boiler below the water-line and the longer ends entering the boiler below the 5 water-line and extending up therein above the water-line, and a reflecting-plate arranged within the shell directly above the upper end or ends of the generator tube. or tubes, substantially as set forth. v

2. In a steam-generator, the combination with a shell, of a collapsible reflecting-plate composed of overlapping sections pivoted on a central axis, such reflecting-plate being arranged within theshell and in the steam-space 9 thereof between the water-line and the steamoutlet of the generator, substantially as set forth.

3. In a steam-generator, the combination with a shell and one or more generator-tubes I extending upwardly therein and terminating above the water-line, of a collapsible reflecting-plate composed of overlapping sections pivoted on a central axis, such reflecting-plate being arranged within the shell above the end I or ends of the generator tube or tubes, substantially as set forth.

4. In a steam-generator, the combination with a shell and one or more generator-tubes having or each having an end terminating be- 1 low the water-line and an end terminating above the water-line, of a collapsible reflecting-plate composed of overlapping sections pivoted on a central axis, such reflectingplate being arranged within the shell and I above the upper end or ends of the tube or tubes, substantially as set forth.

5. In a steam-generator, in combination, a combustion-chamber, a shell, one or more generator-tubes having or each having a looped I portion extending from the shell into the combustion-chamber and exposed freely on all sides to the heated gases therein from the point where it leaves the shell to the point where it again enters the shell and having ends of un- 1 equal length terminating respectively below and above the water-line, and a collapsible reflecting-plate composed of overlapping sections pivoted on a central axis, such reflecting-plate being arranged within the shell directly above the upper end or ends of the generator tube or tubes, substantially as set forth.

6. In a steam-generator, in combination, a casing having a combustionchamber therein, a shell within the casing and arranged above the combustion-chamber with an annular space between the shell and casing and brackets whereby the shell is supported in the'casing, U-shaped generator-tubes arranged with their looped portions within the combustion-chamber and having ends of unequal length which project through the crown-sheet of the shell into the interior thereof, their shorter ends terminating below the water-line and their longer ends extending up therein above the water-line terminating above the water-line, and a reflecting-plate arranged within the shell directly above the longer ends of the generator-tubes, substantially as set forth.

7 In a steam-generator, in combination, a combustion-chamber, a cylindrical shell arranged above the combustion-chamber and having a hand-hole and plate therein, and a collapsible reflecting-plate composed of overlapping sector-shaped sections of smaller diameter than the shell and pivoted on a central axis, such reflecting-plate being arranged within the shell and in the steam-space thereof between the water-line and the steam-outlet of the generator, substantially asset forth,

8. In a steam-generator, in combination, a casing having a combustion-chamber therein, a cylindrical shell within the casing and arranged above the combustion-chamber with an annular space between the shell and casing and brackets whereby the shell is supported in the casing, U-shaped generator-tubes arranged with their looped portions within the combustion-chamber and having ends of unequal length which project through the crownsheet of the shell into the interior thereof, their shorter ends terminating below the Water-line and their longer ends terminating above the water-line, the shell having a hand hole and plate therein, and a collapsible re-' fleeting-plate composed of overlapping sector-shaped sections of smaller diameter than the shell and pivoted on a central axis, such reflecting-plate being arranged within the shell and directly above the longer ends of the generator-tubes, substantially as set forth.

Signed at New York, N. Y., this 22d day of April, 1901.

HERBERT E. RIDER.

Witnesses:

HERBERT H. GIBBs, HENRY D. WILLIAMS.

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