REGULATEUR DE VITESSE PERFECTIONNE POUR MOTEURS ELECTRIQUES

摘要

The specification discloses a speed control for an electric motor of the type including a centrifugal governor in which the governor comprises a rigid backing plate secured to the armature spindle of the motor and extending radially on opposite sides of the spindle and a flexible strip secured at its ends to the outer end parts of the backing plate and having weighted portions at or close to its extremities and an abutment part at its mid-point which engages means to open and close the contacts to the electric motor. The contacts may comprise a fixed contact and a movable contact, the movable contact being provided on the one arm of a two-armed lever which is pivotally mounted about an axis intermediate the two arms and the fixed contact member being mounted on a further arm pivoted about a further axis and adjustable in position relative to the movable contact by means of a manually operated cam to permit adjustment of the speed of the motor.