US1502249A

US1502249A - Electric steam radiator

Info

Publication number: US1502249A
Application number: US499290A
Authority: US
Inventors: Ansel C Hulbert
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-09-08
Filing date: 1921-09-08
Publication date: 1924-07-22
Anticipated expiration: 1941-07-22

Description

July 22 1924.

A. CJHULBERT ELECTRIC STEAM RADIATOR Filed Sept. 8. 1921 Patented July 22, 1924.y j

PATENT OFFICE.

ANSEL C. HULBERT, OF SAN CARLOS, CALIFORNIA.

ELECTRIC STEAM RADIATOR.

Application tiled September 8, 1921. Serial No. 499,290.

T o all whom 'it may concern.' y

Be it known that I, ANsEL C. ,HULBERn a citizen of the United States, residing at San Carlos; in the county of San Mateo, State of California, have invented a new and useful Electric Steam Radiator, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to an electric steam radiator and its object is to provide an automatic steam radiator which will have a receptacle' for the water below the body of the radiator so connected thereto as to keep the radiator properly drained at all times, and thereby completely insure the circulation of steam from the boiler through the heat radiating coils and back to the boiler when condensed, thereby effecting a satisfactory transfer of heat from the steam to the room in which the heater is placed.

Another object of the invention is to so position the Water glass and automatic cutout as to make them easy of access.

A further object of the invention is to provide a special coil which will give off sufhcient heat to prevent the water in the radiator from freezing, if the radiator is used in a country cold enough to be likely to freeze Iit up completely when not in ordinary use.

Other objects of the invention will appear as the description proceeds.

An embodiment of the invention is shown in the accompanying drawings in which the same reference numeral is applied to the same portion throughout, but I am aware that there may be modifications thereof.

Fig. 1 is ay side elevation ofthe complete radiator.

- Fig. is an end view of the same.

Fig. 3 is a sectional view on a slightly larger scale bf the boiler and connection of the radiator, also showing the regulator in section.

Fi 4 is a diagrammatic view of the electrica connections, and

Fig. 5 shows the face plate of the boiler with the electric circuit plugs projecting therefrom.

The radiator comprises two end sections 1 and 2 which have legs 3 and 4 mounted on castors 5 and y6 in order that the radiator may be conveniently moved around the 43, 44 which form the sup room. `There is an air valve 7 V011 the sec. tion 1, and safety valve 8 on the section 2. While these sectionsareseparated by a plurality of sections 9 to 111 inclusive, the number; of sections may be increased or diminished at will. t

The end section 1 has a hole in its lowest part to receive the pipe- 12. This pipe is screwed thereinto and has the union 13 for connecting it to a nipple 14 screwed into the lowest part of the rectangular boiler 15.

At its opposite end the boiler has a larger pipe 16 screwed thereinto and which pipe screws into a steam casing 17 having a liange 18 for connectionwith the flange 19 on the nipple 2O which is screwed into the radiator section 2.

It will be understood by those skilled in the art that the radiator sections are suitably bolted together to prevent the escape of steam at their joints. v

The boiler has four holes to receive the terminal receptacles 21 to 24 inclusive, each of which Vplugs carry a heating coil` 25. Mounted on the top of the casing 17 is a. nipple 26 which in turn carries the casing 27 which forms the chamber for the operation of the diaphragm regulator 28. i Thel diaphragm is held against the casing 27 by means of bolts 29, and another casing 30 encloses the diaphragm and forms the support for a-pin 31 bearing upon the diaphragm.

The pin 31 bears upon'a lever 32 which in turn has a cross-bar 33 bearing upon the two

levers

34, 35. The

levers

34, 35 are supported by flexible springs 36 screwed to a block 37 insulated from the rest of the structure by means of the pad of insulating material 38.

.At the top of the regulator there is a clam ing member 39 which has an linsulating bre 40 secured within the same and within which is the block 41 for holding the adjustable contact screw 42. On the one side of the casing 17 there are two elbows rt for the water glass 45 to determine the evel of the water in the boiler.

A cable 46 extends from the face plate of the boiler to the regulating apparatus for varying the current to maintain a. given radiator temperature.

In order to prevent the regulatin apparatus from bemg tampered with t ere is provided a cover plate 47. Current is sup- W ich plug ma-y be connected er of the termlnal receptacles 50 The terminal receptacle 50 is atand plu 49 with @ai or 51.

tached to the heating terminal receptacle 22,

whilethe terminal receptacle 51 is attached to the heating terminal receptacle 21. The

terminal receptacle 50 Asupplies one of the coils with a sufficient amount of current to prevent the water in the radiator f1 om l freezing, but not suilicient to make necessary the operation of the regulator.

When more heat is required the plug 49 is changed to the terminal receptacle 51, whereupon current is supplied to the three coils 25 as illustrated in Figure 4, in which the

numerals

52, 53 indicate the current supply wires, 54 a wire extending to the block 37, 55 a wire extendin from a contact on the block 37 to one o the

coils

25, 56 awire extending from the other connecting screw 42 under the lever 35 to another of the coils 25, while wires 57, 58 serve to connect the other lterminal of the two coils y25j with the feed wire 53.

The result of the foregoing construction is that three of the coils 25 will receive current in arallel when the plug 49 is attached to the p ug 51, and Yif the pressure gets high enough the diaphragm will disconnect one or both of the coils 2 5 receiving current.

from the'two

wires

55, 56, the load being vbroken on one coil first thereby reducing the load and then upon the other coils to avoid undue sparking, while at' all. times when the power is connected` with the a paratus one of the coils give yoi some heat rom the current supplied thereto,'regardless of the op- .of my invention:

1. An electric steam radiator, comprising a plurality of connected radiator sections, legs to support the radiator sections above the floor level, and means for regulating the current su plied to the heating elements whereby t e danger of exceeding a safe pressure within the radiator is avoided lone of said elements being unregulated to keep the radiator warmer than the atmospher when connected.

2. An electric steam radiator comprising a plurality of radiator sections secured together, legs for supporting said radiator sections above the level of the door, a closed water receptacle supported between the legs, pipes connecting the water receptacle with the lower portion of the radiator sections,

ja pluralityof electric heating units in the waterreceptacle, and a steam pressure operated electric switch for regulating the current supplied to .certain of the heating elements in the water receptacle whereby the production of an excessive pressure within the radiator is prevented one heating ele- -ment being without regulation to keep the ,heater warm whenever 1t is connected.

ANsEL o. HULBERT.