Hearth

(redirected from hearths)
Also found in: Dictionary, Thesaurus, Idioms.

hearth

the bottom part of a metallurgical furnace in which the molten metal is produced or contained

Hearth

That part of the floor directly in front of the fireplace, and the floor inside the fireplace on which the fire is built, made of fire-resistant masonry.

Hearth

 

a furnace for smelting, resmelting, and heating metals and firing ceramic products; the lower part of a shaft furnace in which fuel is combusted.

Hearths have been known since approximately the third millennium B.C. The so-called direct-process hearths found on the territory of the USSR date from the first millennium B.C. Forge hearths served to heat metals before forging and hardening. Pottery hearths or kilns were used to fire pottery. Bloomeries for the conversion of pig iron into iron have been known since the 15th century.

In modern terms, the hearth is an industrial furnace wider than it is high (when the height is greater than the width, the furnace is called a shaft furnace). The hearth consists of a steel chamber lined inside with brick and open at the top. The side walls of the hearth have openings or tuyeres to deliver air. Gaseous products of combustion are disposed of through the open top of the hearth or through an exhaust pipe. A hearth can operate on charcoal, coke, oil, or gas. Ordinarily, the efficiency of hearths does not exceed 5 percent, with the result that they have not found widespread industrial use. Crucible hearths are used in metallurgy for crucible melting of metals, and specially designed hearths are used to obtain lead from ore concentrates.


Hearth

 

(1) An open flat space for kindling and maintaining a fire, usually inside a dwelling. According to archaeological evidence, hearths have been known since the Lower Paleolithic. In the Upper Paleolithic, hearths were often constructed of stones and sometimes coated with clay.

In round dwellings the hearth is usually located in the center of the dwelling, as in the chums of the Nentsy, Evenki, and other peoples of the North; in rectangular dwellings it is near a wall, usually opposite the entrance, as in the houses of some peoples of Dagestan. A transitional type of construction is the hearth placed directly against the wall with a clay-coated wicker pipe for the smoke (among some peoples of the Balkan Peninsula, Siberia, the Caucasus, and Middle Asia). In time the hearth against the wall developed into the fireplace.

The hearth played an important role in various rituals. Among many peoples—including the ancient Greeks, Romans, Slavs, Teutons, and, until recent times, the peoples of the Caucasus and Siberia—it was considered a sacred place in the dwelling.

(2) In a figurative sense, hearth means home, shelter, or the family (the home hearth).

(3) A source from which something, such as a cultural influence, emanates.


Hearth

 

(or bottom), the part of a furnace on which the materials or items undergoing heat treatment (heating, melting, or annealing) are placed.

Hearths of melting furnaces are usually made of refractory materials. Electric-arc furnaces may be constructed with current-conducting hearths, in which case the hearth is one of the electrodes. Hearths of heating furnaces usually also have a refractory lining. A distinction is made between stationary, bogie, moveable, revolving, and roller-hearth furnaces. In multideck, or multihearth, drying and annealing furnaces, the hearths are placed at various levels along the vertical axis of the furnace, and the material being processed pours down from one hearth to another.

What does it mean when you dream about a hearth?

The hearth signifies a place to return to home values and nurturing feelings. It is traditionally the center of sacred beginnings and also of sacred rituals. It also represents a chance to begin again.

hearth

[härth]
(building construction)
The floor of a fireplace or brick oven.
The projection in front of a fireplace, made of brick, stone, or cement.
(metallurgy)
The floor of a reverberatory, open-hearth, cupola, or blast furnace; it is made of refractory material able to support the charge and to collect the molten products.

hearth

1. The floor of a fireplace (usually brick, tile, or stone) together with an adjacent area of fireproof material.
2. An area permanently floored with fireproof material beneath and surrounding a stove.

hearth

symbol of home life. [Folklore: Jobes, 738]
References in periodicals archive ?
4 after receiving a notice from the Presidency stating that President Recep Tayyip Erdoy-an was unhappy about the fact that the Hearths were using his name to gain privileges within state offices.
There are 8 stones and 9 hearths in Ak-Talaa district.
The scatter of shells is similar to patterns of refuse disposal surrounding hearths of contemporary hunter-gatherers.
4), whereas hearth-row sets lack solid walls and occur as single lines of hearths or as two or more parallel lines of hearth sets (Fig.
This means the hearth sticks out at the narrowest point of the room.
For the next 100,000 years, Stone Age folk who frequented the Middle Eastern site used hearths for what must have been a variety of purposes, including staying warm, fending off predators, and cooking meat, according to archaeologist Naama Goren-Inbar of Hebrew University in Jerusalem and her colleagues.
Safe hearths always have a screen to keep sparks in and children and pets out.
But wood stove users need to carefully consider the invisible pollution from their own hearths.
The same sediment holds the remains of large hearths and, intriguingly, scattered shells of inedible mollusks
Lindberg/MPH expanded its product line to include larger sizes of Aluminum Reverberatory Melting Furnaces with Preheat Hearths.
Simpson specializes in concrete counter tops and fireplace hearths.
People who replace rudimentary domestic hearths with well-ventilated stoves enjoy both less-smoky homes and a dramatic reduction in their risk of developing lung cancer, according to a study conducted in rural China.