Drum lock mechanism

Details Drum lock mechanism Drum lock mechanism

1982-04-21

1983-11-08

Moore, Richard E.

Closure fasteners

Clamps

Ring

E05C 1908

Patent

active

044138504

ABSTRACT:
A lever operated mechanism for opening and closing a split clamp ring used to secure a cover over the open end of cylindrical storage drums or barrels is disclosed in which the actuating lever is pivotally connected to one end of the ring and joined to the opposite end thereof by an intervening articulated link movable along an elongated opening extending laterally through the actuating lever to present a multi-position interlink between the ring ends productive of variable mechanical advantage which increases as the ring ends approach one another. The actuating lever also carries a pivotal latch adapted to move through the elongated opening therein for purposes of securing the actuating lever to the ring and thereby preventing ring opening operation of such lever. In a modified version deformable latch means move through the lever opening to hold the same against ring opening operation.

REFERENCES:
patent: 2049848 (1936-08-01), Lockhart
patent: 2108407 (1938-02-01), Lockhart
patent: 2194162 (1940-03-01), Conner
patent: 3339961 (1967-09-01), Schaefer
patent: 3964774 (1976-06-01), Wollin et al.

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