ABSTRACT
This system operates in the following manner. As the slab 1 moves along the roller table 2 into the area between the sideguides 3 and 4, the sideguides are in their retracted or widely separated positions. After slab 1 is positioned by manual or automatic control of the driven rolls of the roller table 2, the motor 5 is energized. At that time, the motor starts to rotate the pinion gear and push the sideguides toward the centerline of the mill. While the sideguides are converging, their speed and position, as well as the motor overloading conditions, are monitored. If overloading does occur, the drive overload sensor produces an enabling signal at one input to the transfer signal generator. The enabling signal at the second input to the transfer signal generator is produced by the speed sensor only when the sideguides are at zero speed. This occurrence of these two enabling signals will indicate that the sideguides are stalled against the slab. At that moment, the output signal from the sideguide position sensor will correspond to the slab width.
