Abstract A reversing control circuit for a single-phase alternating current induction motor operatively connected to a driven member which is operated thereby from an initial position to an extreme position at which it encounters a restraint of sufficient force to stall the motor and returned to the initial position. Upon the closing of a momentary contact switch, supply potential is applied therethrough across the main motor winding and also across the motor first direction phase winding through one movable contact and the corresponding alternate condition stationary contact of a double pole-double throw switch, maintained in the alternate condition of operation by the driven member in the initial position, and a series centrifugal switch. The energized motor rotates in the first direction to operate the driven member toward the extreme position and away from the double pole-double throw switch which returns to the normal condition of operation to connect the motor main winding across the supply potential through a movable contact and the corresponding normal condition stationary contact thereof and the centrifugal switch opens to disconnect the motor first direction phase winding. When the driven member has been operated to the extreme position at which it encounters a restraint of sufficient force to stall the motor, the centrifugal switch closes to apply supply potential across the motor second direction phase winding through a movable contact and the corresponding normal condition stationary contact of the double pole-double throw switch to reverse the direction of rotation of the motor to return the driven member to the initial position at which the double poledouble throw switch is operated thereby to the alternate condition in which all motor circuits are open.
Inventors
👤 Edwin H Halsted
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-05 00:19
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
354 words
A reversing control circuit for a single-phase alternating current induction motor comprising in combination with a source of alternating current supply potential and a single-phase induction motor having a main winding, a first direction phase winding and a second direction phase winding operatively connected to a driven member which is operated thereby from an initial position to an extreme position at which it encounters a restraint of sufficient force to stall the motor and returned to the initial position, a double pole-double throw electrical switch having two electrically interconnected movable contacts simultaneously operable between normal and alternate conditions of operation, each of which is arranged to be in electrical engagement with a corresponding normal condition stationary contact when in the normal condition of operation and in electrical engagement with a corresponding alternate condition stationary contact when operated to the alternate condition of operation arranged to be operated to the alternate condition of operation by said driven member when in the initial position, a normally closed speed sensitive electrical switch operable to an electrical circuit open condition in response to said motor reaching a predetermined speed, means for connecting said motor main winding across said source of alternating current supply potential through a selected one of said movable contacts and said corresponding normal condition stationary contact of said double pole-double throw electrical switch, means for connecting said motor second direction phase winding and said speed sensitive electrical switch in series across said source of alternate current supply potential through the other one of said movable contacts and said corresponding normal condition stationary contact of said double pole-double throw electrical switch, means for connecting said motor first direction phase winding and said speed sensitive electrical switch in series across said source of alternating current supply potential through a selected one of said movable contacts and said corresponding alternate condition stationary contact of said double pole-double throw electrical switch, a momentary contact type electrical switch, and means for connecting said motor main winding and said motor first direction phase winding in parallel across said source of alternating current supply potential through said momentary contact type electrical switch.
Claim 2
Dependent Claim
354 words
A reversing control circuit for a single-phase alternating current induction motor comprising in combination with a source of alternating current supply potential and a single-phase induction motor having a main winding, a first direction phase winding and a second direction phase winding operatively connected to a driven member which is operated thereby from an initial position to an extreme position at which it encounters a restraint of sufficient force to stall the motor and returned to the initial position, a double pole-double throw electrical switch having two electrically interconnected movable contacts simultaneously operable between normal and alternate conditions of operation, each of which is arranged to be in electrical engagement with a corresponding normal condition stationary contact when in the normal condition of operation and in electrical engagement with a corresponding alternate condition stationary contact when operated to the alternate condition of operation arranged to be operated to the alternate condition of operation by said driven member when in the initial position, a normally closed speed sensitive electrical switch operable to an electrical circuit open condition in response to said motor reaching a predetermined speed, means for connecting said motor main winding across said source of alternating current supply potential through a selected one of said movable contacts and said corresponding normal condition stationary contact of said double pole-double throw electrical switch, means for connecting said motor second direction phase winding and said speed sensitive electrical switch in series across said source of alternate current supply potential through the other one of said movable contacts and said corresponding normal condition stationary contact of said double pole-double throw electrical switch, means for connecting said motor first direction phase winding and said speed sensitive electrical switch in series across said source of alternating current supply potential through a selected one of said movable contacts and said corresponding alternate condition stationary contact of said double pole-double throw electrical switch, a momentary contact type electrical switch, and means for connecting said motor main winding and said motor first direction phase winding in parallel across said source of alternating current supply potential through said momentary contact type electrical switch.