Movable or removable closures – Operator interrelated with closure latch release
Patent
1979-11-13
1982-05-04
Kannan, Philip C.
Movable or removable closures
Operator interrelated with closure latch release
49345, 49347, 49357, E05F 1104
Patent
active
043275222
ABSTRACT:
There is provided an assembly for opening and closing a closure lid of a grain bin or silo from a remote position, such as ground level. When a flexible cord or cable connected to the upper end of a lower lever is operatively pulled there is relative pivotal movement between this lower lever and an upper lever against the influence of a spring acting therebetween, with a latch arm the upper end of which is pivotally connected through an operating arm to the upper end of the upper lever being initially pivotted relative to the closure lid to move a latch member presented by the latch arm out of engagement with a fixed bracket member with resilient deformation of a relatively stiff but resiliently deformable strip connected between the closure lid and the operating arm. Thereafter, the closure lid is pivotally raised about a fixed pivot axis thereof. Releasing of the cord or cable results in the closure lid being urged under the influence of the spring pivotally to be lowered to its closed condition.
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Kannan Philip C.
Westeel-Rosco Limited
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