Abstract: A method and apparatus for increasing blast gas temperature in a shaft furnace by passing at least part of the blast gas through a plasma burner, and also supplying additional fuel to the furnace at the tuyere level.
Type:
Grant
Filed:
September 19, 1975
Date of Patent:
February 7, 1978
Assignees:
SKF Industrial Trading and Development Co. B.V., Norrbottens Jarnverk AB
Abstract: A stator for electric motors including a rotor and consisting of at least a pair of stacks each comprised of a plurality of laminations arranged with their sides in the direction of the rotor axis, the edge portions of the laminations running in the axial direction being bent inwardly towards the stator bore and maintained in spaced-apart relation at a position predetermined with regard to the magnetic flux lines and being permanently fixed in this position solely by means of a moulded compound, each lamination stack consisting of undivided laminations comprising a north and a south pole, each main pole consisting of the lamination edges of two adjacent lamination stacks.
Type:
Grant
Filed:
December 3, 1973
Date of Patent:
April 27, 1976
Assignee:
SKF Industrial Trading and Development Co., B.V.