Abstract: An improved device for distributing and stirring the contents of a furnace having a plurality of vertically disposed electrodes, said improved device including a circular track disposed adjacent the upper periphery of said furnace, a first transport carriage, motor means for moving said first transport carriage, an elongated non-circular trackway supported by said first transport carriage, a second transport carriage, a non-circular trackway, means to move said second transport carriage back and forth, a furnace contents working device connected to said second transport carriage, and means to vary the angular disposition of said furnace contents working device.

Abstract: A taphole boring or plugging machine having a simple and compact design affording rotation of the tool arm in several planes is provided which comprises: a pivotably supported connection at the free end of the machine tool arm and with a universal joint supported therein, and support bracket which is pivotably supported by the horizontal axle of the universal joint.