File

Details File File

1976-03-05

1977-02-08

Skogquist, Harland S.

Binder device releasably engaging aperture or notch of sheet

Opposed sheet retainers involving relative rectilinear travel

With or including separable sheet transfer means

24248SL, B42F 1332

Patent

active

040069923

ABSTRACT:
A file for holding perforated sheets is provided adjacent its spine with a pair of spaced apart tubular prongs for cooperation with the sheet perforations. The file is provided at its spine with a leaf spring of which a portion protruding from the inner side of the spine, in the position of use of the file, abuts against the web of a substantially U-shaped wire member, the arms of which engage the tubular prongs to retain the sheets to the tubular prongs. The leaf spring portion protruding from the spine to cooperate with the web of the U-shaped wire member has a tongue integral with the protruding leaf spring portion and directed towards the spine of the file. When the protruding leaf spring portion is caused to abut against the web of the U-shaped wire member, the tongue snaps home under the wire to lock the leaf spring to the U-shaped wire member.

REFERENCES:
patent: 389530 (1888-09-01), Schlicht
patent: 720975 (1903-02-01), Schult

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