Heating – Heating or heat retaining work chamber structure
Patent
1979-04-09
1980-08-26
Camby, John J.
Heating
Heating or heat retaining work chamber structure
65339, 65342, F27D 100
Patent
active
042193265
ABSTRACT:
A waist construction for a tank-type glass melting furnace having a lower tank covered by an independently supported sprung arch roof. The side walls forming the lower tank are inset for defining a waist section having a reduced passage interconnecting the melting and conditioning zones of the furnace. An open framework is provided above the inset breast walls for suspending portions of upright closure walls closing the ends of the melting and working zones adjacent the entrance and exit ends of the reduced passage; the suspended portions extending across the entrance and exit ends of the reduced passage closely adjacent the upper surface of the molten glass therein. The suspended portion of each wall is centrally located and flanked by bottom supported wing walls. Additionally, a segmented, suspended cover is provided between the suspended portions of the upright closure walls for enclosing the open top region of the reduced passage.
REFERENCES:
patent: 2119948 (1938-06-01), Blau et al.
patent: 2585552 (1952-02-01), Hosbein
patent: 2987856 (1961-06-01), Longenecker
patent: 3399046 (1968-08-01), Longenecker
patent: 3888195 (1975-06-01), Longenecker
patent: 4001001 (1977-01-01), Knavish et al.
Camby John J.
Libbey-Owens-Ford Company
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