The ceramic shell mould, containing an ingot of bronze within the header cup, is set in the furnace.
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The cover, a suspended bin lined with ceramic blanket, is set in place and the furnace fired, using propane, for 25 minutes.
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The cover is lifted, and the front wall of the furnace is removed with tongs.
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Using leather gloves, insulated with pieces of ceramic blanket, the mould is rolled over into a dry sand bed ....... .
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And immediately set upright, allowing the metal to flow into the mould cavity.
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After cooling, the mould is broken away to reveal a perfect bronze. It's all a matter of timing!
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