Electric heating – Metal heating – Of cylinders
Patent
1977-01-31
1978-05-30
Truhe, J. V.
Electric heating
Metal heating
Of cylinders
416231A, 416DIG3, H05B 906
Patent
active
040925137
ABSTRACT:
The field stirrer herein has an upwardly concave pan shape and is formed as a sheet metal stamping. It has a central planar section and a surrounding section comprising a plurality of circumferentially arranged segments with planar surfaces, the segments being shaped like equilateral trapezoids. The surrounding section has three circumferentially spaced segment groups in which the individual segments thereof slope upwardly at an angle of approximately 45.degree. relative to the planar section. Each of the segment groups includes at least three of the segments which are laterally joined by folded edges. There are also three individually mounted segments arranged alternately relative to the three segment groups which slope upwardly at an angle of approximately 27.degree. relative to the central planar section. At least one segment in each segment group has a rectangularly shaped opening with a rectangularly shaped flap extending vertically downwardly from the upper edge of said opening. The stirrer includes a central hub member and at least one rectangularly shaped opening in the planar section spaced from the hub member and extending in a generally tangential direction relative thereto. A rectangularly shaped flap is at the inner edge of the opening and the flap is inclined towards the hub member to form an acute angle relative to said central planar section.
REFERENCES:
patent: 3626136 (1971-12-01), Funahashi
patent: 3746823 (1973-07-01), Whiteley
patent: 3872276 (1975-03-01), Corcoran et al.
Litton Systems Inc.
Lowe Robert E.
Roskoski Bernard
Truhe J. V.
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