| 摘要 |
<p>Consists of a motor, with a rotor formed by the roller or drum 1, rotatable on its axis, bearing the relevant signs and symbols on its outer periphery, whose interiors include a variety of permanent magnets 10 and an electromagnet assembly composed of a coil 2 with its core of soft iron 3 and a polar part 4, also of soft iron, in addition to the appropriate electronic components for causing the coordinated operation resulting in obtaining a rotary movement in the roller and the halting of this roller at a determined symbol.</p> |
