Method of assembling an electric motor

Claim 1

A METHOD OF MOUNTING A NON-ROTATABLE SHAFT WITHIN THE CYLINDRICAL STATOR OPENING BETWEEN THE POLES OF AN ELECTRIC MOTOR HAVING A STATOR WITH SUCH POLES AND HAVING A ROTOR ROTATABLE WITH RESPECT TO THE SHAFT, SUCH METHOD INCLUDING THE STEPS OF PREFABRICATING A BRACKET WITH AN APERTURE LARGER THAN SAID SHAFT AND HAVING A WALL BOUNDING SAID APERTURE WHICH IS PROVIDED WITH CENTRALLY CONVERGING SURFACES FOR RIGID CONNECTION WITH THE INSERT HEREAFTER MENTIONED, THE ASSEMBLY OF LAMINATIONS TO COMPRISE A STATOR FRAME HAVING STATOR POLES, CYLINDRICALLY FINISHING THE POLES, ASSEMBLING SAID BRACKET WITH THE STATOR POLES IN A POSITION SPANNING THE OPENING, CENTERING A SHAFT FOR THE ROTOR WITH PRECISION BY MEANS OF A JIG SUPPORTED DIRECTLY FROM THE STATOR POLES, WITH A PORTION OF THE SHAFT PROJECTING INTO THE APERTURE OF THE BRACKET, CASTING BETWEEN THE SHAFT AND THE BRACKET AN INSERT OF INITIALLY FLUID MATERIAL, CONTRASTING THE MATERIAL OF THE INSERT BY THE COOLING OF SUCH MATERIAL TO WEDGE SUCH MATERIAL BETWEEN THE SAID CENTRALLY CONVERGING SURFACE OF THE BRACKET AND TO SHRINK SUCH MATERIAL UPON THE SHAFT FOR THE RIGID MOUNTING THEREOF WHILE MAINTAINING THE SHAFT RIGIDLY POSITIONED FROM THE JIG UNTIL SUCH MATERIAL HAS SET, AND THEN REMOVING THE JIG AND LEAVING THE SHAFT FIXEDLY POSITIONED FROM THE BRACKET SOLELY THROUGH SUCH INSERT, THE CAST INSERT MAINTAINING THE SHAFT IN PRECISELY ALIGNED POSITION WITH RESPECT TO THE CYLINDRICALLY FINISHED POLES IRRESPECTIVE OF TOLERANCES IN THE BRACKET.

Claim 2

A METHOD OF MOUNTING A NON-ROTATABLE SHAFT WITHIN THE CYLINDRICAL STATOR OPENING BETWEEN THE POLES OF AN ELECTRIC MOTOR HAVING A STATOR WITH SUCH POLES AND HAVING A ROTOR ROTATABLE WITH RESPECT TO THE SHAFT, SUCH METHOD INCLUDING THE STEPS OF PREFABRICATING A BRACKET WITH AN APERTURE LARGER THAN SAID SHAFT AND HAVING A WALL BOUNDING SAID APERTURE WHICH IS PROVIDED WITH CENTRALLY CONVERGING SURFACES FOR RIGID CONNECTION WITH THE INSERT HEREAFTER MENTIONED, THE ASSEMBLY OF LAMINATIONS TO COMPRISE A STATOR FRAME HAVING STATOR POLES, CYLINDRICALLY FINISHING THE POLES, ASSEMBLING SAID BRACKET WITH THE STATOR POLES IN A POSITION SPANNING THE OPENING, CENTERING A SHAFT FOR THE ROTOR WITH PRECISION BY MEANS OF A JIG SUPPORTED DIRECTLY FROM THE STATOR POLES, WITH A PORTION OF THE SHAFT PROJECTING INTO THE APERTURE OF THE BRACKET, CASTING BETWEEN THE SHAFT AND THE BRACKET AN INSERT OF INITIALLY FLUID MATERIAL, CONTRASTING THE MATERIAL OF THE INSERT BY THE COOLING OF SUCH MATERIAL TO WEDGE SUCH MATERIAL BETWEEN THE SAID CENTRALLY CONVERGING SURFACE OF THE BRACKET AND TO SHRINK SUCH MATERIAL UPON THE SHAFT FOR THE RIGID MOUNTING THEREOF WHILE MAINTAINING THE SHAFT RIGIDLY POSITIONED FROM THE JIG UNTIL SUCH MATERIAL HAS SET, AND THEN REMOVING THE JIG AND LEAVING THE SHAFT FIXEDLY POSITIONED FROM THE BRACKET SOLELY THROUGH SUCH INSERT, THE CAST INSERT MAINTAINING THE SHAFT IN PRECISELY ALIGNED POSITION WITH RESPECT TO THE CYLINDRICALLY FINISHED POLES IRRESPECTIVE OF TOLERANCES IN THE BRACKET.