Stoves and furnaces – Tool having fluid fuel burner – Curling iron
Patent
1979-08-06
1981-11-17
Scott, Samuel
Stoves and furnaces
Tool having fluid fuel burner
Curling iron
353 3, 250203R, F24J 302, G01J 120, G03B 2100
Patent
active
043005330
ABSTRACT:
The present invention relates to automatic thermal/hydraulic logic system for continuously positioning a heliostat in alignment with the sun in both the horizontal and vertical planes. Solar radiation is monitored by phials which produce signal pressures of a magnitude that varies with phial exposure to the rays of the sun. The produced signal pressures are directed to thermally controlled valves which are compared with mechanically controlled valves of similar design feature. These control valves are centered so long as hydraulic fluid pressure signals on each end of a control valve are equal, but the valve spool is displaced to the left or to the right if and when a pressure differential is created, (improper alignment). When a specific differential sets in, a mechanical action takes place which moves the heliostat to its proper concentrating position. Movement ceases when the differential disappears (proper alignment).
REFERENCES:
patent: 3680307 (1972-08-01), Michalec
patent: 4063543 (1977-12-01), Hedger
patent: 4175391 (1979-11-01), Baer
patent: 4198954 (1980-04-01), Meijer
Anderson G.
Mangrum Dennis L.
Scott Samuel
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