F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
126/57
F24B 13/00 (2006.01) F24C 15/04 (2006.01)
Patent
CA 1125607
ABSTRACT OF THE DISCLOSURE An improved viewing door for a radiant heating fire, particularly a wood-burning stove employs spaced apart panels of tempered glass, which loses its temper on exposure to operating temperatures in excess of 400°F. as normally experienced in a wood stove; an outer glass panel is spaced outwardly of the stove and is cooled by air currents drawn through the space, whereby the outer panel is maintained at a lower temperature and the temper is not lost; the tempered glass is a float-formed glass and is less costly, more widely available, can be obtained cut to order, and provides a clear non-hazy viewing window as compared with the more expensive, high temperature performance, rolled, silica glass which provides a hazy viewing window in the door and has a lower impact mechanical resistance than tempered glass. There is also provided an improved stove door which is fabric- ated from a metal such as steel without casting; the problem of warpage on exposure to elevated stove temperatures is avoided by the provision of a cavity within inner and outer walls of the door, through which air flows; the flowing air cools the door and the thus heated air is directed into the stove and improves the efficiency. An improved stove is also provided which includes a continuous passage extending between the bottom and rear walls of the stove housing and the fire box, heated air in the passage is directed along the horizontal portion of the passage, forwardly of the stove and produces a radiation shield for the bottom and the rear of the stove to allow for reduced clearances to the back of the stove.
349789
Harber Blair L.
Swabey Ogilvy Renault
LandOfFree
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