Quick setup expanding arbor for lamination assembly of an electr

Details Quick setup expanding arbor for lamination assembly of an electr Quick setup expanding arbor for lamination assembly of an electr

1997-11-13

1999-04-27

Hall, Carl E.

Metal working

Means to assemble or disassemble

Means to assemble electrical device

414 27, 414788, 29596, B23P 1900, H01K 1502

Patent

active

058966480

ABSTRACT:
An expandable arbor is provided for assembling a plurality of laminas into a lamination, wherein each lamina has a central opening and a plurality of slots extending radially from the central opening. The arbor includes a base portion and an expandable core that is disposed to extend axially from the base portion. The arbor further includes a plurality of key holders disposed around the core. Each key holder is configured in the form of an elongated shaft that extends axially from the base portion and has a polygonal transverse cross-section. Each key holder is further configured with a plurality of faces, and each face defines a key receptacle therein for holding a key.

REFERENCES:
patent: 3378907 (1968-04-01), Dixon
patent: 4079512 (1978-03-01), Lakes

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