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Iron Foundry

1950 , Epping (Essex)

Cat no. 225

The process of making a cast iron part, 1950.

The film begins by showing the finished products of the factory. These include finished pieces of agricultural machinery and separate machine parts. The film shows the various stages of production. These include making a pattern, charging the furnace and the preparation of moulds. After the furnace has been tapped, the liquid metal is poured into moulds and left to cool. The next day, the mould is opened, the top being removed by hand, and the finished product is lifted out. The film shows the finished processes necessary to make a cast iron part; drilling, chipping and painting.

Featured Buildings

William Cottis and Sons Ltd, Iron Foundry

Intertitles

Many machine parts are made of CAST IRON in an IRON FOUNDRY.The first step is the drawing or BLUE PRINT. From this a wooden PATTERN is made.CAST IRON is made by melting: PIG IRON, SCRAP IRON and LIMESTONE in a furnace.Moulds are made by ramming MOULDING SAND round the wood PATTERNS in MOULDING FRAMES.Hollows in a casting are made by using CORES of SILICA SAND.Molten metal is poured from STEEL LADLES lined with fireclay.Moulds are opened the next day when the iron is cool.Castings are finished by chipping, grinding and machining, followed by final assembly and painting.

Other Places

Epping

Manifestations

Iron Foundry

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