Arrangements for unloading bulk material from holds of cargo ves

Details Arrangements for unloading bulk material from holds of cargo ves Arrangements for unloading bulk material from holds of cargo ves

1989-07-27

1991-02-05

Brown, David H.

Material or article handling

Marine loading or unloading system

With weather cover

114201R, 414292, B63B 1914, B63B 2700

Patent

active

049900455

ABSTRACT:
An arrangement for unloading bulk material from the hold (12) of a freighter (11) which includes a hatch cover (25) in combination with a lifting screw (14) or similar unloading means which is lowered down into the hold (12) via the associated loading hatch (13). The hatch cover (25), which is adapted to rest on a coaming (26) on loading hatch (13) of the freighter (11) via an annular cover frame (34), is provided with a cover portion (31) pivotably mounted about a vertical axis (31a) having a vertical through-going guide (30) for the reception of the unloading means (14) for swinging of the same in a path forwards and backwards from one side portion of the hatch cover to the middle of the hatch. The cover portion (31) is allowed to turn in the cover frame (34) with corresponding movement of the unloading means (14). The hatch cover (25) including the cover portion (31) covers the hatch opening outside the vertical through-going guide (30), which is defined by the covering from approximately the middle of the cover portion (31) and outwards towards the periphery of the cover portion.

REFERENCES:
patent: 1640188 (1927-08-01), Grunbock
patent: 1780322 (1930-11-01), Tsuji
patent: 2849010 (1958-08-01), Marino
patent: 4714097 (1987-12-01), Binzen et al.

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