H - Electricity – 02 – K
Patent
H - Electricity
02
K
26/112
H02K 15/02 (2006.01)
Patent
CA 1076331
ABSTRACT OF THE DISCLOSURE A laminated core manufacture wherein a plurality of apertured laminations are provided with projections formed from the portion of the sheet from which the apertures are formed to define an interlocked laminated stack. The first of the laminations is provided with a through aperture with the pro- jection being eliminated so as to define a nonprojecting surface in the first of the laminations of the stack, with the projec- tions of each of the subsequent laminations extending into and being interlocked with the preceding lamination in the aperture thereof. The punching apparatus for providing the apertures and projections is selectively operated to define either the formed aperture and projection structure or a blanked out aper- tured structure. The blanked out apertured structure defines the first of the laminations of the stack. The extent of the projections from the laminations is preselected to be no greater than the thickness of the laminations so that the projection of the laminations superjacent the first lamination is received fully within the blanked out aperture thereof. The blanked out laminations may be indexed to define a skewed axis dynamoelectric structure.
309741
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