US 4,726,568 AGranted

Easily stored and used disposable cover for a molten metal ladle

AssigneeCrisman Sand Company, Inc.

InventorEdwin R. Nicholson

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Abstract

An easily stored and used disposable cover for the opening of a molten metal type ladle is disclosed, which uses transverse ribs of green hardwood above a blanket made up of ceramic fabric batting. The ribs are tied together into an array by means of flexible wires running longitudinally across the ribs and secured to them. The ribs are sized to span across the ladle opening and to hold the blanket thereover, and the cover may be easily rolled up longitudinally so as to assume an easily stored, handled and shipped roll shape. A plurality of wide headed nails hold a sheet of plastic or like material and the blanket to the ribs. The sheet serves to protect the blanket from tearing or catching or binding together and allows it to be unrolled and handled more easily. A wire end handling loop is also provided at the longitudinal ends to aid in placing the cover over the ladle.

Claims13

Dependent claims

An easily stored and used heat-retaining disposable cover for a ladle of the type that has an opening for receiving molten matal, comprising:

a blanket of flexible ceramic batting insulating material formed in a manner so as to effectively constitue a continuous layer without opening or gaps, said blanket being sized and shaped so as to be able to extend beyond and overlap the opening of the ladle in width and length, and said blanket having a top and a bottom;
a plurality of ribs of hardwood positioned generally parallel to one another on the top of, and across, said blanket, said ribs being spaced apart from one another thereon, each of said ribs spacing approximately the width of the blanket under them and being of such a length as to span across the ladle opening when the cover is placed centrally thereover;
means for securing the blanket to said hardwood ribs;
flexible tying means laid out transversely to said ribs and secured thereto for preventing the ribs from transversely spreading away from one another along the surface of the blanket;
and
means for affixing the cover to the ladle over the opening,
said cover having the ability to be rolled up transversely for ease of storage and transportation, yet easily unrolled and draped across and secured over the opening of the ladle when desired.

4 more elements

Dependencies are inferred from the claim text.