Rotator system including a remote drive motor and a local indicator-control motor

Claim 1

A rotator comprising: an AC motor for driving the object to be rotated, said AC motor having a pair of windings, potential coupling means for providing over one lead to one winding of the AC motor an AC potential of one phase and over a second lead to the second winding of the AC motor an AC potential of a second different phase to cause energization of said AC motor, a two terminal DC motor for driving an indicator means, means coupled between said first and second leads and a first terminal of said DC motor for providing at the first terminal of said DC motor an AC potential of said first phase when the AC motor is in one rotated position and an AC potential of the second phase when the AC motor is in a second rotated position, means including an AC rectifier coupled between said first and second leads and the second terminal of said DC motor and responsive to the rotated position of said DC motor for causing activation of the DC motor when said first and second leads are coupled to opposite terminals of said DC motor and for causing de-energization of said DC motor when said first and second terminals of said DC motor are coupled to the same one of said leads.

Claim 7

A system for rotating a remote shaft and for providing a local indication of the rotated position thereof comprising: a first reversible driving means including a reversible AC induction motor and a first gear train, said reversible AC motor having a pair of windings and responsive to energization potentials of one phase at one winding and of a second phase at the second winding for driving said remote shaft and gear train, potential coupling means for providing over one lead to one winding of the AC motor an AC potential of one phase and over a second lead to another winding of the AC motor an AC potential of a second different phase to cause energization of said AC motor, a local movable indicator, a second driving means including a two terminal reversible DC motor and a second gear train coupled to each other and said indicator and responsive to an energizing potential applied thereto for driving said indicator, a first switch means having a first contact coupled to a first winding of said AC motor and a second contact coupled to the second winding of said AC motor and a movable contact coupled to a first terminal of said DC motor, said movable contact being driven by said first gear train for in response to a given movement of said first gear train causing said movable contact to switch between said first and second contacts and consequently provide at the first terminal of said DC motor an AC potential of said first phase at one rotated position of the AC motor and an AC potential of said second phase at a second rotated position of the AC motor, a second switch means, an AC rectifying means coupled between said second switch means and the second terminal of said DC motor for providing unidirectional potential across said DC motor, said second switch means having first contact member coupled to said first lead and a second contact member coupled to said second lead and a movable contact member coupled to said rectifying means, said movable contact member being driven by said second gear train for in response to a given movement thereof causing said movable contact member to switch between said first and second contact members thereof and apply to said rectifying means and said DC motor said first and second phase potentials in a manner to cause energization of said DC motor when said gear trains are not synchronized so that said first and second leads are coupled to opposite terminals of said DC motor and de-energization of said DC motor when said gear trains are synchronized so that said first and second terminals of said DC motor are coupled to the same one of said leads.

Claim 8

A system for rotating a remote shaft and for providing a local indication of the rotated position thereof comprising: a first reversible driving means including a reversible AC induction motor and a first gear train, said reversible AC motor having a pair of windings and responsive to energization potentials of one phase at one winding and of a second phase at the second winding for driving said remote shaft and gear train, potential coupling means for providing over one lead to one winding of the AC motor an AC potential of one phase and over a second lead to another winding of the AC motor an AC potential of a second different phase to cause energization of said AC motor, a local movable indicator, a second driving means including a two terminal reversible DC motor and a second gear train coupled to each other and said indicator and responsive to an energizing potential applied thereto for driving said indicator, a first switch means having a first contact coupled to a first winding of said AC motor and a second contact coupled to the second winding of said AC motor and a movable contact coupled to a first terminal of said DC motor, said movable contact being driven by said first gear train for in response to a given movement of said first gear train causing said movable contact to switch between said first and second contacts and consequently provide at the first terminal of said DC motor an AC potential of said first phase at one rotated position of the AC motor and an AC potential of said second phase at a second rotated position of the AC motor, a second switch means, an AC rectifying means coupled between said second switch means and the second terminal of said DC motor for providing unidirectional potential across said DC motor, said second switch means having first contact member coupled to said first lead and a second contact member coupled to said second lead and a movable contact member coupled to said rectifying means, said movable contact member being driven by said second gear train for in response to a given movement thereof causing said movable contact member to switch between said first and second contact members thereof and apply to said rectifying means and said DC motor said first and second phase potentials in a manner to cause energization of said DC motor when said gear trains are not synchronized so that said first and second leads are coupled to opposite terminals of said DC motor and de-energization of said DC motor when said gear trains are synchronized so that said first and second terminals of said DC motor are coupled to the same one of said leads.