General Electric Company

Robert H Hartmann

Thomas E Brennan

James A Guerrein

Robert M McCoy

David Mark Taccone

William Donald Fisher

Thomas E Howe

Apparatus for forming a form wound stator coil from a bobbin has means for clamping the straight portions of the bobbin to define the straight portions of the each leg of the coil. It also has means for bending the bobbin to predetermined radii to form arms extending from the straight portions of each leg of the coil to each nose of the coil. Means are provided for bending each arm to a predetermined radius. Means are further provided for bending the nose portions to a predetermined angle. Means for providing a drop to the arm portions of the coil relative to the stator bore are also provided. Means for forming the leads of the bobbin to a predetermined configuration are also provided. Hydraulic means for powering the apparatus and a system for controlling the hydraulic means are also disclosed.

AC coil former

Method for producing form wound stator coils

A dynamic profiling system for measuring a profile of an outer surface of a moving motor component such as a commutator includes a movable probe assembly having a profile detecting probe and a probe cooling system for circulating a cooling liquid about the probe. The probe cooling system maintains the cooling liquid at a fixed temperature during circulation of the liquid. The detecting probe obtains profile measurement data from the outer surface of the rotating motor component when the motor component is at ambient and hot temperatures. Additionally data is collected while the commutator is rotating up to 4000 revolutions per minute. The system further includes a controller, an analog to digital converter for receiving and converting the data, and a monitor for displaying information processed by the controller. The controller directs a probe positioning device to reciprocally position the probe assembly relative to the moving motor component under test and a protective enclosure encloses the moving motor component while the test is in progress. An aperture in the protective enclosure allows the probe assembly to approach the moving motor component by passing through the aperture while a movable door can selectively block and unblock the aperture. A door sensor generates a door status signal to indicate the state of the door, wherein the controller receives the door status signal and generates a visual indication of the door status signal in response thereto.

Dynamic commutator profile system

Apparatus for producing form wound stator coils

A tieless bracing arrangement is provided for rigidly supporting the winding end turns of a dynamoelectric machine in relatively rigid operating position. The bracing arrangement is characterized by including an expandable annulus having a spreader that is operable in conjunction with a plurality of slidably mounted dowels to selectively hold the annulus open while it is positioned adjacent to the machine end turns and then to compress the annulus tightly against the end turns to secure them in operating position. A novel method is also disclosed for applying the tieless bracing to a dynamoelectric machine.

Tieless bracing and method for supporting end turns of a dynamoelectric

A tieless bracing arrangement is provided for rigidly supporting the winding end turns of a dynamoelectric machine in relatively rigid operating position. The bracing arrangement is characterized by including an expandable annulus having a spreader that is operable in conjunction with a plurality of slidably mounted dowels to selectively hold the annulus open while it is positioned adjacent to the machine end turns and then to compress the annulus tightly against the end turns to secure them in operating position.

Growing community of inventors

Erie, PA, United States of America

Robert H Hartmann