US1226849A - Electric water-heater. - Google Patents

Description

J. B. BOOKMAN. ELECTRIC WATER-HEATER.

APPLICATION FILED JUNE 511916- Patented May 22, 1917.

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aosnrrr B. BooKMAn, or MANHATTAN, NEVADA.

ELECTRIC WATER-HEATER.

Specification of Letters Patent.

Patented May 22, 1917.

Application filed June 5, 1916. Serial No. 102,805;

. heater so constructed that cold water may be practically instantaneously heated in a convenient, cheap and sanitary manner.

The primary object of my invention is to provide" a heater of the class described in which the liquid contained'therein circu lates therethrough by gravity, the liquid entering at the top of the heater and being withdrawn at the bottom.

Another object of my invention is to provide safety means for operation when liquid is not being withdrawn from the tank.-

A further object of my invention is to provide a device of the character described which maybe quickly and easily disassembled for cleaning or repair, consists of few parts, is compact, neat in appearance and capable of quick and easy installation.

Other objects and advantages to be derived from the use of my improved electric liquid heater will appear from the following detailed description and the claims, taken with an inspection of the accompanying drawing, in which:

Figure 1 is a longitudinal sectional view of an electric heater embodyingthe improvements of my invention on the line 11 of Fig. 2;

Fig. 2 is a transverse sectional view taken on the line 22 of Fig. 1;

Fig. 3 is an enlarged section taken on the line 33 of Fig. 2; and I Fig. 4 is a longitudinal sectional view in plan of one of the circulating tanks.

Referring more particularly to the drawing, wherein similar characters of reference designate like and corresponding parts throughout the various views, 1 designates a liquid supply pipe which, when desired, may be connected to the water supply of a building, said conduit 1 having a valve 2 interposed therein. A branch pipe 3 is provided having a control valve 3 interposed therein for a purpose which will hereinafter appear.

The heater proper embodies a casing 4 substantially rectangular in configuration,

a plurality of electric heaters 5 being disposed in spaced relation within the casing, said heaters being controlled from the switch 6.

I provide a plurality of circulating units designated A, B, and G in their entireties, each of said circulating units having reinforcing strips 7 along the margins thereof. The detail structure of one of the circulating units is best shown in Fig. 4, said unit having a plurality of alternately arranged baffle partitions 8 therein between which the liquid is adapted to circulate, as indicated by the arrows. As best shown in Fig. 1 the circulating units are arranged in zigzag relation so that liquid entering at one end of a given unit will circulate through the unit and pass out through the opposite end. The pipe ,1 is connected with theuppermost circulating member C at'the point 9, short pipe sections 10, 11, and 12 serving to connect said circulating units, the lowermost unit being connected with a valve generally designated 13 by means of a short pipe section 14. I

The branch pipe 3 extends beneath the casing 4 and is provided with a sub-branch 15 in which a valve 16 'isinterposed. The valve 13 embodies a casing and a turning plug 17, said plug having a right-angular bore 17 therein for communication with the conduit 14 and the outlet pipe 18. The valve is secured to the bottom of the casing 4 by means of bolts 19 or the like.

A short pipe length 21 connects the conduit 3 with one side of the valve 13 for a purpose which will hereinafter appear.

A liquid chamber 30 is mounted at one end of the casing 4, said chamber serving to cool that end of the casing and prevent burning or scorching an object on which the same may be mounted. Inlet and outlet pipes 31 and 32 communicate with said chamber. An outlet cook 33 serves as a drain for the chamber 30. Brackets 36 are mounted on the wall of the casing 4 adjacent said chamber, said brackets serving to mount the device in any convenient position.

,The front sides ofthe circulating unit are removable, said sides being retained in position by means of the screws 25.

In operation liquid is admitted to the circulating units by opening the valve 2. Current is turned on and the heaters serve to raise the temperature of the water con' tained in said circulating unit. To withdraw the water the plug 17 is rotated until the bore thereof afi'ords communication between the conduit section 1% and the outlet pipe 18. When the device is not in use as a heater the valve 13 is closed and the valve 3 opened. This permits a circulation of the liquid in connection with the colder liquid from the supply pipe 1 thereby preventing overheating of the liquid contents of the units A, B, and C. This, of course, would only come into actual use in the event that the user should neglect to turn off the electric heater or where it was desired to maintain the water heated for a certain period of time before using.

From the above description taken in connection with the accompanying drawing, it is thought that a clear and comprehensive understanding of the construction, operation and advantages of my invention may be had, and while I have shown and described the device as embodying a specific structure, I desire that it be understood that such changes may be made in said structure as do not depart from the spirit and scope of the invention as claimed.

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

1. In a device of the class described, the

combination of a main casing, a plurality of communicating circulators in said casing, a supply conduit communicating with the first of said circulators, an outlet conduit, a double-way valve to connect said outlet conduit with an outlet pipe, said valve being adapted to connect said outlet conduit with said inlet conduit to shunt the liquid around said circulators.

2. In a device of the class described, the combination with a main casing, an inlet conduit, an outlet conduit, and a branch conduit, a valve to control communication between said conduits, of a circulator composed of a flat rectangular body having a plurality of alternately arranged partitions therein, the front wall of said body being removable, screw members for retaining in position angularly disposed members adapted to be assembled in series whereby liquid will flow from one to the other of said members in its path of travel during the heating process.

3. In a device of the class described, the combination of a casing having a plurality of relatively angularly disposed circulating devices therein, said circulating devices being in communication with a source of liquid supply, a branch pipe shunting the liquid around said circulators, a safety valve for controlling the outlet of liquid, said safety valve being adapted to connect the branch pipe with the outlet portions of said circulators whereby when no liquid is being withdrawn from the heater the same is caused to circulate in contact with the colder liquid being supplied so as to prevent overheating.

JOSEPH B. BOOKMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). 0.

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