US950516A - Water-heater. - Google Patents

Description

E. W. SAWTELLE.

WATER HEATER APPLIUATLON FILED MAR, 10, 1909.

950,516, Patented Mar.1,1910.

INVENTOR UNITED STATES EUGENE WILLIAM SAW'I'ELLE,

PA'rENT OFFICE.

OF SACRAMENTO. CALIFORNIA.

Patented Mar. 1, 1910.

WATER-HEATER.

950,516, Specification of Letters Yateat.

Appucauoa fled lurch 10, 1909. Serial no. 452,627.

To all whom it may ermcem:

Be it known that I, Eve-am: Woman SAW'I'ELLE, a citizen of the United States, residing at Sacramento, in the county of Sacramento and b'tate of California, have invented certain new and useful Improvements in Water-Heaters, of which the fol lowing is a. specification.

My invention relates to iniprovcnwnts in water heaters and especially to that class used for heating a supply of water will become apparent, are to provide a heater from which the settlings or water charged with sediment may readily be removed not only from the coils; to provide an arrangement ot heating coils that will supply the maximum amount of hot water wit penditure of gas, and to provide certain novel arrangements of pipes and conncc-g lions as will be further explained.

A practical embodiment of my invention is represented in the accompanying draw ings forming which similar figures of reference indicate oorresl'mnding parts throughout.

The specification is in such elca r and concise terms that anyone familiar with the art to which this invention applies may readily understand itand be able to construct the same, reference being also had to the drawings.

Figure 1 is a vertical sectional view showing certain parts in side elevation of the water heater forming: the basis of my invention. Fig. 2 is a sectional view taken at the dotted line o--o of and the outlet 19.

In Fig. 1, 1' is a stand for so )porting the boiler; 1 is the outer shell of tn: boiler; 2 is an open ended central tube or llue concentric with the shell, the upper end of which terminates in the hood 3 and the lower end lorminutus in the frusto-rouh-ul 1 bottom 4; 5 1; is a double 5; )iral water brutiug coil vertically arranger within the line 2 the terminals of said roll connecting with \ia o n.

8 is a gas gas or fumes.

I V V lhe water supply us mlpullod nuo the look through the cock ll suuutml nour the lower part of the took; about on n level for dolnestic purposes by means oi gas; and the 1 objects of my invention, among others which the tank but also from i the minimum ex- 1 part of this specification, in

Fig. l to show the T 15' burner lnculod lwlow the mlla and 10 18 u chnnnvy for uouwymg oll any f with this and at any point in the periphery of the tank but preferably opposite to it, is a pipe connection 12 which conducts the water near the lower part of the boiler to the lower end of the coil 5 through the pipe 13 and 13' and their auxiliary connections. At the lowest point on the pipes 13 and i3 is a drain cock 1? and between this cock I and the connection 1:! is a stopcock 18. g When it is desired to clear the roil of any sediment, the cock 18 is shut on and the rock 17 opened, it being understood that the l supply-cock 11 is also open. l At the lowest practical point in the tank 5 is placed a rock 15 supplied from the main )0 16 as indicated, and within the tank and connected to said cock by suitable fittings is a T 15 so placed that when the rock 15 is opened (the cock 11 now bein 4 closed) the stream of water will be divide 1 port going around the bottom of the tank one way and part the other see Fig. 2. it i is obvious that when the draiwcock 19 is opened, any deposit or settlin s which may 1 have collected ill the pocket fin'med by the union of the sides of the tank and the fru'stoconical bottom will be washed out. When it is desired to clear the bottom of the boiler. the cook 11 should be chm-d, and the two rocks 15 and It) opened. T he supply rock i 11 is placed above the cook 15 so that as the i fresh supply of water is injected into the l tank itwill not agitate any scttlings or deposits therein. By this arrangement of drains it is possible to keei the tank and coils free from settlings which have provcu so disastrous in certain parts of the country i to water heaters of this class.

Near the upper end of the tank is a sleeve 20 connecting the outer shell of the boiler with the flue 2.; this sleeve is to form a pansage-wny for the introduction of the pipe 21 ronnechn the upper discharge end of the I ends 5 with the pipe 2'3. The outer end of l this sleeve is plugged by the bushing "20'. In the lower part of this pipe 3:2 is placed a T .23 with suitable connection to the tank. and the upper end of 2.2 is connected by another T 22-ito the upper bond 3 of the tank; and the hot water delivery pipe 25 is connected to this T, all as ilulicutod.

The operation will then he as follows: Water passing through the pipes 13 and 13' l (the cook 18 being open) will outer the lower i end ofjho coil rand Iii-come instantly healed, and ruuug, will pass into the general oil" Ill) culation of the tank through the Ts 23 and 24 and their connecting pipes 21 and 22, i tending to heat the entire contents of the 5 tank quickly. When the hot water delivery pipe 25 is opened by means of a valve connected with the hot water delivery service, L the hot water in the coils will be delivered first, passing directly through the pipes 21, 5 22am 25 and afterward the water in the j upper end of the tank will pass out through the Ts 24 and 23. With this simple arrangement of ipes, it is possible to obtain a quantity of wt water quickly or a larger su ply in a short period of time. But in or or that the proper circulation of water may be carried on in the tank and coils, it is necessa that they be kept free from settlings w ich form when the water supply is char ed with considerable sediment. If the tan is not in constant use, sediment will collect in the coils and bottom of tank, and when heat is ap lied will cause the sediment to harden and t us obstruct the proper passage of water. Should this continue, the pipes may become completely closed, thus causing considerable damage; this condition is overcome by the system of drain cocks and valves hereinbefore fully explained.

While I have shown and described a frusto-conical bottom boiler, I do not wish I to claim such broadly, as the arran enient I have shown can be used equallv we 1 with a flat bottom boiler when the distance between the shell and the inner flue is not very great. The drawings show a double spiral water coil; this ma be a single coil but I prefer to use the cable coil as it ex ses E a greater surface to the action ofthe teat. It is, therefore, to be noted that various} outside near its lower end; a

mentioned flue; a coil vertically disposed within said fine; a pipe leading from the bottom of said coil around the lower part of the tank and connected to the tank on the ipe leadin trom the up 1' end of the a orcsuid coil through the me 'embeforc mentioned sleeve; :1 T connecting this last mentioned pipe to the tank on the outside just above the sleeve; a continuation of this same pipe and a second T connecting the same to the head of the tank; a hot-water delive pipe connected to this last mentioned a cold-water supply 1pc connected to the tank at two points, t e one above the other, near the bottom thereof; and a gas burner located below the water coil.

2. In a water heater suitably su ported and having a drain-cock 19, the com ination of a tank having an upper head and a frustocomcal bottom and an open ended inner flue concentrically fixed therein, one end terminoting in the upper head and the other in the frusto-conical bottom, and having a sleeve connecting the outer shell of said tank near its upper end with the above mentloned line; a coil vertically dis used within said flue; a pipe leading from t 1e bottom of i said coil around the lower part of the tank and connected to the tank on the outside near its lower end, said pi being provided with a drain cook 17 an a stop cock 18; a pipe leading from the u per end of the aforesaid coil through the liercinbefore mentioned sleeve; :1 T eonnectin this last mentioned ipe to the tank on he outside just above t e sleeve; a continuation of this same pipe and a second T connecting the same to the head of the tank; a hot-water changes may be made in the form, proportion and minor details of construction without in any way departing from the princi le or sacrificing any of the advantages of t \is invention.

I am aware that water heaters having heatin coils is not new, but

but I claim as new and desire by Lettcrs Patent to secure, is-

1. In a water-heater suitably supported, the combination of a tank having an upper I head and a frusto-conical bottom and an open i ended inner flue concentrically fixed therein, one end terminating in the upper head and the other in the frusto'conicul bottom. and i having-a sleeve connecting the outer shell of said tank near its upper end with the above i i d eliveryr pipe connected to this last menhoned a cold-water supply pipe 16 connectcd to said tank at two points, the one 2 above the other, near the bottom thereof, the upper connection being provided with a stopcook 11 and the lower connection being pro- 1 vided Wllll a stop-cock 15 and terminating within the tank in a T 15'; and a gas burner located below the water coil.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

Witnesses:

J. C. Cnnrnn'ruu, E. A. S'IICKNEY.

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