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US 4,308,697 AGranted
Floor plate assembly
AssigneeLoewy Robertson Engineering Company Limited
InventorDavid W. Guppy
Life of this patent
Estimating the term…
Abstract
A floor plate assembly, particularly suitable for use in and around rolling mills, comprises a closure floor plate which is arranged to close an opening adjacent another floor plate. The closure floor plate can move as required between a first position closing the opening and a second position under the other floor plate. The other floor plate is movable during the opening and closing operation to avoid obstruction of the closure floor plate.
Claims10
A floor plate assembly comprising:
- a floor structure having an opening therein;
- a first movable floor plate movable to and from an operative position adjacent the opening;
- a closure floor plate;
- means for moving the closure floor plate between a first position in which it closes the opening and a second position in which it is disposed under the movable floor plate;
- and
- connecting means operative between the closure floor plate and the movable floor plate such that, during the movement of the closure floor plate from the first position to the second position or from the second position to the first position, the movable floor plate is caused to move from its operative position, and is then returned to said operative position, in response to said movement of said closure floor plate whereby obstruction of the movement of said closure floor plate between said first and second positions, by said movable floor plate, is avoided.
3 more elements
Dependencies are inferred from the claim text.