US1275293A - Water-heater. - Google Patents

Description

' Patented Aug. 13, 1918.

' a true axis of the coil.

HENRY W. OZDO, OF JERSEY CITY, NEW JERSEY, ASSIGNOR '10 WILLIAM M. CRANE COMPANY, .A CORPORATION OF NEW YORK.

WATER-HEATER.

Specification of Letters Patent. Patentgd Aug, 13, 1918.

Application filed August 30, 1912. Serial No. 717,922.

To all whom-it may concern:

Be it known that-I, HENRY W. ODowo, a citizen of the United States, and a resident of Jersey City, Hudson county, State of New Jersey, have invented certain new and useful" Improvements in WVater-Heaters, of-which the following is a specification.

This invention relates to water heaters, and more particularly to water heaters fpr household use. Objects of the invention are to provide a heater of the character referred to which shall be simple and durable in construction and eficient and economical in operation: and whose parts shall be simple, compactly and conveniently arranged and adapted to be readily taken apart and reassembled. These and other objects of the invention will be in part obvious and in part more fully explained in the'following description.

The invention consists in the novel parts, improvements, combinations, and features of construction hereinshown and described.

In the' accompanying drawings, which are referred to herein and form a part/here- 'of, is illustrated an embodiment of the in- Fig. 3 is a plan view of a preferred form' of burner used in said embodiment.

Referring now in detail to the drawings, the embodiment of the invention illustrated comprises a heating coil 5 joined by unions 6 and 7 to the inlet pipe 9 and outlet pipe 10, respectively, of the water s stem, as shownsaid inlet and outlet pipes being on Surrounding said heating coil is a casing 12 having a top 13 from which leads a flue l lfor the escape of the heated products of combustion.

Suitable means are provided for heating -the water as it passes through the coil 5, the

same, preferably and as shown, comprising an annular burner 16 which has a break in its periphery, see Fig. 3, so that the burner may be readily removed upon lifting the casing 12 or opening the doorthereof without hlndrance from the water supply pipe.

vSaid burner is connected to a fuel supply by a depending mixing tube 18, a nipple 19 of the burner resting upon a flange 20 of the mixing tube, said flange 20 resting in turn upon a downwardly flanged plate 22 which is secured to the water inlet and which burner project inwardly, and throughout the upper surface of the burner and extensions are suitably disposed upwardly directed perforations 26.- The extensions or branches 25 terminate short of the coils center, prefergirrounding the heat zone or lower part of the casing 12, is a hollow belt 28, formed by an outer plate spaced apart from the said casing and joined thereto at the edges, so as to provide a pocket for secondary air to be supplied to the burner 16. It will be obvious that the belt 7 28 also conserves the heat in the said zpn and around the end. of the coil therein. referably'in the lower part of the belt 28 are formed a plurality of air inlets 29 which communicate with similar inlets 30 formed in the inner casing 12 and preferably on alevel with the flame from the burner 16. It will be seen that this relative disposition of the saidair inlets in the outer belt and inner casing is most advantageous for supplying atmospheric air to the burner 16 in order to maintain combustion. To afford a further supply of air so as to maintain combustion ports are formed in the plate 22 through which ports the air enters and passes through and around the burner'to the place of combustion.

In order that the heated products of combustion may be utilized to the best advantage in their passage through the casing '12 a tubular baflle or deflector 32 havinga coneplurality of radial extensions 25 of the nection, as shown.

shaped lower. end is arranged inside the upper rings of the heating coil. 5 and, as shown, has a flanged top 33 resting upon a centrally apertured diaphragm 34, extending across the interior of the casing 12, over the upper end-of the said coil 5. The deflector 32 fills the aperture in the diaphragm 34 and extends downwardly therefrom to approximately the level of the belt 28 aforementioned, that is, down to a point nearly in line with the upper edge of the said belt. It will be perceived that this deflector turns the heat currents from the zone of the burner 16 toward the internal surface'of the surroundin casing and forces them across the spirals 0 the coil above the said zone. At the same time the diaphragm operates to repel the ascending currents downward against the entire coil, and thus assists in maintaining the latter in a permanently hot atmosphere.

The diaphragm 34 aforesaid is placed at some distance from the topof the casing 12, and formsin the upper part of the latter a separate chamber, through which the outlet pipe 10 reaches the coil 5, by a suitable con- This discharge connection of the coil 5, it will be observed, is central relatively to the axis of the deflector 32, which latter transmits to the said chamher the products of combustion that accumulate and press up against the underside of the diaphragm. Suitable vents in the sides of the deflector 32, and registering perforations 37 in the top 33 thereof, enable the products of combustion thus to be transmitted to the chamber, inside of which they spread around the said discharge connection,

imparting thereto such heat as they may still 'retain after traversing the diaphragm.

Finally, the products of combustion are allowed to escape through a flue 14, communieating with a suitable opening in the top of the casing 12, at or near its periphery.

Besides the said vents, which are designated by the reference numeral 3%, the tubular deflector 32 is also provided with a suitable opening to receive and let pass the curved portion of the outgoing end 5* of the coil 5. The opening may be in the form of a U-shaped notch or slot39", in the upper end of the deflector, as indicated by dotted. lines in Fig. 2. The end 5 of the coil is embraced by the before mentioned flanged top 33 of the deflector, and with the union 7 forms the discharge connection above described, which leads into the outlet pipe 10.

It will be seen that a water heater constructed in accordance with. this invention carries out the objects of the invention as hereinbefore set forth and also possesses other advantages which will be apparent-to those skilled in the art.

The invention in its broader aspects is nevaaee not limited to the precise construction shown from said diaphragm with a passage leading the products of combustion from said element into said chamber.

2 A. water heater including in combination a casing, a coil therein, a heating element below said coil, a diaphra above the latter forming a separate chamber between the upper end of the coil and the top of said casing, an outlet pipe leading ed the casing top, a connection between said upper end of the coil and said pipe passing through said chamber, and means conveying heat from said element into said chamber centrally of said diaphragm and around said connection.

3. A water heater including in combination a vertical coil, a casing therefor, a heating member beneath said coil in the lower part of said-casing, a diaphragm above the coil separating it by an intervening space from the casing top, the discharge end of the coil leading from said diaphragm to said top across said space, an apertured element secured to said diaphragm conveying heat from said heating member around said discharge end, and means affording an exit to the products of combustion passing through said element.

4. A water heater including in comb-ination a vertically disposed coil, a casing inclosing the same, a burner beneath said coil, a diaphragm above the latter forming a separate chamber between it and the top of said casing, the outlet end of the coil rising to the upper part of said chamber and casing top past said diaphragm, a tubular heat deflector in said diaphragm having an egress opening adjacent to said outlet end, and a flue serving to convey the products of com Eustion from said burner out of said cham- 5. A water heater including in combination a vertical coil, a casing therefor, inlet and outlet pipes for said coil axially projecting from the opposite ends of said casing, a burner positioned in the lower part of the casing so as to throw heat around the inlet pipe, a diaphragm above the coil completely separating it by an intervening space from the casing top, a tubular deflector in the center of said diaphragm leading the prod- In testimony whereof, I have signed my ucts of combustion from said burner against I name to this specification, in-the presence of the outlet pipe centrally of the space between two subscribing witnesses.

the casing top and the diaphragm, and a flue HENRY W. ODOWD. having a peripheral communication with Witnesses: said space at a point remote from the outlet EUGENE M. CHAPMAN,

pipe. JOSEPH H. MULFORD, Jr.

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