US639417A - Tubular gas water-heater. - Google Patents

Tubular gas water-heater. Download PDF


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US639417A US72074399A US1899720743A US639417A US 639417 A US639417 A US 639417A US 72074399 A US72074399 A US 72074399A US 1899720743 A US1899720743 A US 1899720743A US 639417 A US639417 A US 639417A
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gas water
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John Mander
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John Mander
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    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18Water-storage heaters
    • F24H1/20Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/205Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with furnace tubes


No. 639,4l7. .Patented Dec. I9, |899. J.` MANDER.
TuBuLAR lGAS WATER HEATER. (Application med June 16, 1399.1
(No Model.)
l Hh
SPECIFICATION forming part of Letters Patent No. 639,417, dated December 19: 1899.
Application tiled June 16, 1899. Serial No. 720,743. (No model.)
To all whom t may concern.-
Be it known that I, JOHN MANDER, a citizen of the United States, residing in the city and county of Philadelphia, State of Penn- Sylvania, have invented a new and usefullmprovement in Tubular Gas Water-Heaters,
l which improvement is fully set forth in the following specification and accompanying drawings.
My invention consists of an improved construction of a tubular gas water-heater to be used in connection with the water-heater of a stove or range, as will be hereinafter more fully set forth, and particularly pointed out in the claim.
Figure l represents a vertical sectional view of a tubular gas water-heater embodying my invention. Fig. 2 represents a vertical sectional view of a heater similar to that shown in Fig. l, but supplied with a plurality of fines or passages for the heating medium, and showing also a boiler and the water-back t0 which the heater is applicable. Fig. 3 represents a section on line nc ai, Fig. 2.
Similar letters of reference indicate corresponding parts in the ligures.
Referring to the drawings, in Fig. l, A designates a heater, the same consisting of a base portion B, which is provided with the lower convex or dished plate or tube-sheet C, against which the gas-flames from the heating deviceD are adapted to impinge, said heater being located so that all the heat units impinge upon the under surface of said convex plate and are conducted upwardly through the flue D to the exit, the outlet of said i'lue being controlled by means of a damper E.
F designates the outer wall or casing of the heater, the same being preferably of annular contour to correspond with the contour of the flue D and having connected to its lower portion the base B, which latter is dome-shaped and provided with the pipe GX.
I-I designates a pipe leading from the casing F to the water-back H of the stove or range, while the upper portion of the casing F is provided with a connection J, which leads to the boiler K.
In the construction seen in Fig. 2 I have shown the gas water-heater as provided with a plurality of upwardly-extending nues,
` proximity is very hot.
which are here designated as L, said flues leading upwardly from the convex plate C, which corresponds to the similarly-located plate seen in Fig. i and adapted to receive heat from the gas-burner D, tothe upper plate M, above which is the flue N, which contains the damper E. The number of iiues L may, of course, be increased or diminished according to requirements and are inclosed by a casing F, substantially similar to the casing seen in Fig. 1. The lower portion lB of the heater seen in Fig. 2 is substantially the same as that of the heater seen in Fig. 1, and the pipe G and the outlet-pipes J and H for making the necessary connections to the boiler K and the water-back of the range are all substantially the same as seen in Fig. l.
In practice I prefer to mount the heater seen in Fig. 2 upon a frame or legs M ,whereby the heater is effectively supported.
It will be seen that the convex plate C is heated to a high degree by the gas-dames of the burner D impinging directly thereupon, the water in its heated condition passing upwardly into the boiler K, while by thenproper manipulation of the damper D the heat can be retained within the flue or iiues D or L as long as may be desired.
The tubular gas water-heater can be used alone, as seen in Fig. l. The pipe G serves as the inlet-pipe, in which case the feed-water is discharged direct on the highly-heated dished plate C, it being understood that the pipe Hin Fig. l is not employed while the heated water from the heater iiows outwardly through the pipe J. When the heater is used in connection with the water-heater of' a stove, the pipe H serves as the inlet, as shown in Fig. 2, and the pipe GX of Fig. l or pipe G of Fig. 2 may then rserve as a blow-off ora waterout'let from the water-chamber formed by the casing F. In the lattercase the water is drawn from the heater in a highly-heated condition direct from the convex surface of the plate C, and since the iiames from the burner impinge directly against said plate C it is obvious that the water drawn directly from such close The heater can be used equally well with an upright boiler as with the range shown, or it can be used alone, if desired.
In practice I provide an inletpipe l? for the purpose of conducting water to the boiler K,
the water passing therefrom downwardly through the pipe Q into the water-back I-I and passing thence through the pipe H into the heater and Howing from the latter through the pipe J into the boiler, the heated water flowing therefrom through the pipe R to the point of supply.
A heater constructed in accordance with my invention can be quickly set up without necessitating the employment of skilled labor and when in position will require but little attention.
It will further be apparent that changes may be made by those skilled in t-he art which will come Within the scope of my invention, and I do not, therefore, desire to be limited in every instance to the exact construction I have herein shown and described.
Having thus described my invention, what claim as new, and desire to secure by Letters' Patent, is-
The combination with a water-heating device of a stove or range, an upper boiler, and a pipe connecting the lower portion of said boiler with the lower portion of said heating device, of a gas water-heater consisting of a casing having an enlarged base portion and an u pwardly-extendin g flu e, said base portion having a convex lower plate, a burner situated below said plate whereby the dames therefrom ilnpinge directly upon said plate, a
pipe connecting the upper end of said casing with the upper portion of the boiler, and an outlet-pipe leading from the side 0f the base portion close to said plate, whereby the Water is drawn off in a highly-heated condition.
JOHN MANDER. Witnesses:
US72074399A 1899-06-16 1899-06-16 Tubular gas water-heater. Expired - Lifetime US639417A (en)

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