US1263861A - Water-heater. - Google Patents

Description

J. R. CREAWIER.

WATER HEATER.

APPLICATION FILED NOV.2fi. 1915.

2 SHEETS-SHEET I.

W M M & P

INVENTOR WITNESSES 1. R. CREAMER,

- WATER HEATER.

APPLICATION FILED NOV.26, 1915 Patented Apr. 23, 1918.

2 SHEETS-SHEET 2.

WITNESSES UNl @[Tlil WANT h ll l@ht JOHN BOSS CREAMEPJ, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOB, T0 VESTA MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPUBA- TION OF NEW JERSEY.

WATER-HEATER.

Original application filed December 23, 1914, Serial No. 878,667.

To all whom it may concern Be it known that 1, JOHN Ross CREAMER, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Nater-lrleater, of which the following is a specification.

My invention consists of a water heater employing gas as fuel, in which the gas for the burner is controlled by the water admission valve so that the fuel cannot be admitted to the burner until the water has been admitted into the heating coil, and is a division of an application filed by me on December 23rd, 1914, Serial #878,667, for a gas heater.

It further consists of means for controlling the burner valve to prevent the same from being opened when the pilot-burner is closed.

It further consists of other novel features of construction, all. as will be hereinafter fully set forth.

The annexed drawing and the following description set forth in detail one mechanical form embodying the invention, such de tailed construction being but one of various mechanical forms in which the principle of the invention may be used.

Figure 1 represents an end elevation of my improved Water-heater.

Fig. 52 represents a longitudinal vertical section of said heater.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawing, the reference numeral 1 indicates an outer casing or jacket the walls 2 of which are double and have a non-conducting packing 3 of asbestos, mineral. wool or similar material. The top of said casing has a double head 4: having a non-heat-conducting packing 5 formed with an opening 6 communicating with a chamher 7 having an outlet 8 for the exit of smoke and waste-products from the heating chamber within the casing. A plurality of horizontal pipe coils 9 are supported longitudinally within the casing one coil above the other and having their contiguous sides intermeshing and the end convolution of the uppermost coil extends by a vertical pipe 10 to the open. bottom of the casing where it extends horizontally to the opposite end of Specification of Letters Patent.

Patented Apr. 23, 191%.

Divided and this application filed November Serial No. 63,482.

the casing and through the same forming an inlet heating pipe 11. The ends of the pipe coils are alternately connected with the ends of the adjoining coils so that the water ad mitted to the upper coil will pass through the same and the connected inter-meshed and superposed coils, the end of the lower of which coils is connected to an outlet pipe 12, in the end of the casing, by a horizontal pipe 13 below the horizontal inlet heating pipe and extending at the end of the casing opposite to the inlet pipe. An open gutter 14 is supported below the lowermost pipe coil and has adrip-pipe 15 discharging into a removable open pan 16 supported below the open bottom of the casing. A burner chamber 17 is supported below the open bottom of the casing and the coil and has burner nipples 18 upon its upper side directing flames upward into the casing and against the coils and the Waste-products escape at the top of the casing. A mixing chamber 19 is connected to the feed pipe 20 of the burner and is connected to a valve casing 21 having a transverse rotatable valve-plug 22 controlling the gas supply. A suitable air-damper 23 provided for controlling supply of air into said mixing chamber. The plug 22 of the gas valve has a radially projecting handle 25 having a transverse plate 26 at its end and said handle closes the valve when turned downward. The horizontal inlet pipe 11 is connected outside the casing through a pipe 36 with a valve casing 27 the plug '28 of which is coaxial with the plug of the gas-valve and has a radially projecting handle 29 upon its in ner end upon which is a transverse plate 30, the inner end of which overlaps and engages the inner end of the plate upon the gas valve handle. A pilot light pipe 31 is connected to a valve casing 32 having a plug 33 and extends beneath the burner and said casing is connected to the gas-pipe by a branch pipe 34. The pilot plug is supported between and at a right angle to the inner ends of the water and gas valve plugs and has a laterally projecting handle 35 which closes the pilot-valve when its handle is tilted in front of the handle of the gas valve and opens said valve when tilted out of the way of the gas valve handle.

in practice, when the water inlet and gas lea inlet are com ected, respectively, to a water first turned upward and the light at the p tpip gn ted}. T e at r l e han i new tilted outw rd and; upwa dm t: ting water into the heating coils. The upward move of the handle for the pilot-valve and the outward move of the handle of the .watenvalve will. admit of the handle of the gas-valve being tilted outward and upward opening thesame to the burner when the gas will be ignited by the pilot-light. The water in the coils will be heated by the flames from the burner and may be drawn asrequired. As the coils convey the water in a comparativelysmall; diameter body and in a tortuous course, presenting a comparatively large heating surface, the water will be quickly heated to a high degree of temperature and will be continually heated as hot Water is withdrawn. at the discharge end of the pipe-coils. The inlet and outlet of the water passing through the horizontal pipes immediately above the burner, the heated water will besubjected to the high.- est temperature when enteringand leaving the heater and passing through the horizon tal superposed coils and exposed to the heat and-products of combustion from the burner, will be exposed to the direct action of the burner-flame during its entire passage through the heater.

When the operation of the heater is stopped, the handle of the gas-valve is tilted down and said valve closed and the flame extinguished. The handle of the water-valve can now be tilted down to close the water-valve and the overlapping inner end of its cross-plate will bear against the inner end of the cross'plate of the gas-valve and prevent the same from being opened. The pilot valve will also lock the gas-valve handle if the pilot burner is turned 01?, so that: the gas cannot be turned on when no wateris admitted to the coils and no burning out of the dry heating coils. can. be caused. The, heating coils are preferably formed from copper, brass or similar good heat conducting metal of suffi'cient strength to resist the interior. steam-pressure generated in the coils,

The outer casing having the walls filled with asbestos or, other heat non-conductive material will cause practically all heat from the burner to beutilized for heating the coils and water therein and will retain hot waterin the coils at high temperature after the burner has been turned off.

The gas cannot be lighted; nor stay lighted excepting when the water-valve is open and the coils filled, as closing the water-valve will close the gas-valve by the plates upon the valve-handles engaging and one carrying the other with it, so there can be no burning out of the coils as the water must be turned on before the burner can be lighted.

Any leakage from the coils and any moisture which collects upon the coils will drop down upon the lower coil and thence drop into the longitudinal gutter from which itis conducted to the pan beneath the burner by the drip-pipe, so that no moisture can collect in the heating chamber and corrode the metallic elements when the heater is not in operation.

Other modes of applying the principle of my invention may be employed for the mode herein explained. Ghange may therefore be made as regards the mechanism thus disclosed, provided the principles of construction set forth, respectively, in the following claim are employed.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

The combination in a water heater, of heating coils, a gas burner, vertically di sposed water and gas pipes, valves laterally disposed in said pipes and in axial alinement, with their handles extending downwardly when the valves are closed, overlapping members on said handles to prevent the gas valve opening prior to the opening of the water valve, :1 pilot for the burner, and a pilot valve disposed between said water and gas valves and rotatable in a plane at substantially right angles to the plane of rotation of the water and gas valves and so arranged that its handle will prevent opening of the gas valve the pilot valve.

' JOHN ROSS CREAMER.

Witnesses:

C. D. MoVAY, M. E. BYRNE.

Gopiesofi: this patentmay, be obtained for five cents each, by addressing the Commissioner of- Patents, Washington, D. G.

prior to the opening of

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