Motor braking arrangement and method
AssigneeThe Singer Company
InventorAdrian Weissman
Life of this patent
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Abstract
A universal series motor having its brushes shifted at an angle against the direction of rotation is provided with a braking arrangement which removes power from the field windings and applies power directly to the armature winding.
Claims7
A method for braking a universal series motor connected to a source of electrical power, said motor having its brushes angularly shifted against the direction of motor rotation, the method comprising the steps of:
- (a) disconnecting the motor from the source;
- (b) connecting the source directly to the armature winding of the motor;
- and
- (c) disconnecting the source from the armature winding.
In combination with a universal series motor connected to a source of electrical power, said motor having its brushes angularly shifted against the direction of motor rotation, an arrangement for braking said motor comprising:
- first disconnecting means for disconnecting said motor from said source;
- connecting means operative after said first disconnecting means has functioned for connecting said source directly to the armature winding of the motor;
- and
- second disconnecting means operative after said connecting means has functioned for disconnecting said source from said armature winding.
Dependencies are inferred from the claim text.