F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
158/72
F23D 3/28 (2006.01) F23D 3/32 (2006.01)
Patent
CA 1231038
- 1 - Abstract: An oil heater has a wick fed radiant burner which comprises a wick adjusting shaft rotatable it first and second directions about its longitudinal axis. A wick holder moves with the wick between an extinguishing position and a maximum combustion position past a minimum combustion position in response to the rotation of the shaft. A ratchet wheel is mounted on the shaft for displacement axially of the shaft. An actuating pin is mounted on the shaft to be angularly movable with the shaft. An abutment bank is provided on the wheel for defining the angular distance over which the pin moves, which angular distance corresponds to the distance of movement of the wick holder between the maximum combustion position and the extinguishing position. A one-way stopper on the wheel permits the pin to pass during rotation of the shaft in the second direction, but restrains the pin from passing during rotation of the shaft in the first direction, thereby defining the minimum combustion position. The pin once restrained can be released from the stopper when the shaft is rotated in the first direction by the application of an external rotary force sufficient to cause the pin to displace the wheel against the biasing spring while permitting the pin to pass over the stopper. The arrangement provides improved and safer wick operation.
479983
Fujimoto Masayuki
Ohta Hiromi
Tao Muneo
Kirby Eades Gale Baker
Matsushita Electric Industrial Co. Ltd.
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