Rotating security hinge

Details Rotating security hinge Rotating security hinge

1978-05-11

1980-04-01

Husar, C. J.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

256 65, 403 7, 403192, E05D 106, E05D 710

Patent

active

041953851

ABSTRACT:
A double quill-like, security mechanism having a pair of concentric, hollow cylinders, one positioned to rotate wholly within the other and restricted against axial displacement thereby to provide means for supporting a rotatable gate structure carried by the outer cylinder against removal therefrom except at a predetermined angular relationship of rotation between the two cylinders.

REFERENCES:
patent: 2307753 (1943-01-01), Anderson
patent: 3734076 (1973-05-01), Kiziol

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