US1651450A - Water-heating device - Google Patents

Description

Em, 6 19227, Y Y 1,651,450

T. J. FARRNGTON WATER HEATING DEVI CE Filed NQv. lO0 1926 I 71 vento?" Patented Dec. 6, 1927.Y

UNITED STATES innate PATENToFFIca.

TElFORD JONES FARRINGTON, 0F KEREVILLE, TEXAS.

WATER-HEATING DEVICE.

Application filed November 10, 1926. Serial No. 147,515.

The present invention relates to water heating devices of the so-called instantaneous type wherein opening ot a, faucet automatically induces the operation of the heating device which acts upon the flowing stream to raise the water to the` desired temperature, and elosin of the faucet automatically stops the operation thereof. The present invention illustrates an instantaneous heater wherein the current is turned on and olif by changes in the pressurey of the water without employing any electric connection t0 the faucets or valves by which the flow is controlled.

An important object of the invention is the provision of an apparatus of this type ot simple and rugged construction which shall be cheaply madehreadilv cleaned. reliable in operation, and economical ot current.

Another very important object of the invention is to provide a structure of' this nature which is exceedingly compact and in which the parts may be readily assembled and disassembled when desired thereby making the parts very accessible for repairs and replacement purposes. i

With the above and numerous other obiects in view. as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement ot parts as will be hereinafter more fully described and claimed.

ln the drawing:

Figure l is ay sectional elevation of the water heater embodying' the features of my invent-ion.

Fie'. 2 is a transverse section therethrough taken substantially on the line 2-2 ot Fig. l looking downwardly.

Referring to the drawing' in detail it will. be seen that the control valve 1 is somewhat like the ordinary globe valve used for water and steam and is preferably constructed ot brass. A housing 2 is screwed on the top ot the valvebody to support the heater and formsa convenient means ot' supplying; a stutl'inn` box 3 cast integral with the housing` which prevents water leaking out around the valve stem 4t. This valve stem 4l reaches to the top of the water heater as is clearly illustrated in the drawing and is provided with a porcelain cap or other insulating' material so that when the valve raises olii the valve seat it will cause the contact points 5 to come into engagement with each other thus closing an electricV circuit that will in turn cause the energ'laation ot tac heating Ielement to be referred to later. Suitable terminals ll areprovided. to attach electric.

wires to andthe contacts 5 can be arranged at the bottom ot the electric heating element as well as at the top if so desired. When all faucets ot the outlet pipe are closed the water pressure in the same being equal on. both sides ot the valve 16 causes the valve to rest on the seat. This scat is not designed to hold pressure but is intended more as a stop or rest for the valve and valve stem. To overcome valve stem packing; friction and to prive the valve a quicker motion, a sprino' 15 has been provided. A copper coil l0 is made so that the convolutions will lie close together and near the heating! element. This coil connects with the control valve by a suitable connection 17 provided with union Ettiusrs The outlet 19 will be provided with standard pipe threads to connect with the hot water piping` in the building. The heating element is constructed ot special resistant wires (i and is held securely and is properly spaced with porcelain disks 7 and thewhole is assembled on brass pipe 8 which makes the heatino; element a separate part and can rbe inserted or removed without danger of damalge. kThe center pipe 8 makes a convenient guide tor the valve stem. The valve stem is insulated from the center pipe at the top in the way ot a porcelain cap 4". This can be substituted for any other suitable insulating material. The coils are covered with asbestos 9 and a suitable metal jacket 14 eueloses the whole.

It is thought tl'iat the construction. utility. and advantapesot this invention will now be clearly understood b v those skilled. in this art without a more detailed description thereof. Particular attention. however. is

directed to the means with which the parts may be assembled and disassembled so as to make them accessible tor repairs and replacement. The device is very simple in its construction andthe parts are very compactllv and conveniently arranged. The present embodiment ot the invention. has been disclosed in detail merely by way ot example since in actual practice it attains the features of advantage enumerated as desirable in the statement oit the invention and the above description. It will be apparent that changes in the details of construction, and

in the combination and arrangement of parts may be resorted to Without departing 'from the .spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described iny invention,what I claim as new is:

An instantaneous water heater of the class described including a casing, a Water pipe coiled in the casing with its convolutions in engagement with each other, a Valve, a. housing connecting the valve to the casing, a tube extending coaxially through the casing and the coil in spaced relation to said coil, an electric heating element disposed about the tube Within the coil, a valve stem slidable in the tube, a circuit closure operatively connected with said Valve stein and disposed Within the casing and electrically associated in circuit With the electric heating element, said valve stem being connected with said valve to be controlled thereby.

In testimony whereof I affix my signature.

TELFORD JONES FARRiNGTo'N.

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