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Lead Sheet Cast on a Tilted Iron Plate, Ure 1839
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Lead Sheet Cast on a Tilted Iron Plate, Ure 1839

Thin lead sheet can be cast without rolling. Andrew Ure (1839) describes the white-lead works: melted lead is poured on an iron plate over the pot, and as soon as its surface begins to set the plate is tipped, so the still-liquid lead runs back and leaves a thin sheet that lifts off like paper. Their sheets were 1/24 inch thick or less. The picture: our diagram, the plate tipped over the pot as the liquid runs off.
Ophakathi
An afternoon

Imiyalelo

1

Melt the lead

Melt lead in a cast-iron pot over the fire. Work outdoors, keep food and drink away, and wash your hands after.

Izinto zokwakha zalesi sinyathelo:

Isigaxa SomthofuIsigaxa Somthofu5 kg
AmalahleAmalahle3 as required

Amathuluzi adingekayo:

Ibhodwe lokuncibilikisa lensimbi ethelweIbhodwe lokuncibilikisa lensimbi ethelwe
Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Imaski YothuliImaski Yothuli
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
2

Set the plate

Lay a clean, dry iron plate across the pot so it can be tipped toward one side to drain into the pot.

Amathuluzi adingekayo:

Ishidi lensimbi (elikhandiwe)Ishidi lensimbi (elikhandiwe)
Ibhodwe lokuncibilikisa lensimbi ethelweIbhodwe lokuncibilikisa lensimbi ethelwe
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
3

Pour and tip

Ladle lead onto the plate. The moment its surface starts to set, tip the plate so the liquid runs back into the pot; the thin set layer stays as a sheet.

Amathuluzi adingekayo:

Ikhezo lokuthela insimbi encibilikileIkhezo lokuthela insimbi encibilikile
Ishidi lensimbi (elikhandiwe)Ishidi lensimbi (elikhandiwe)
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
4

Lift and repeat

Lift the sheet off, cool the plate with water, and pour again. Trim the sheets with snips.

Izinto zokwakha zalesi sinyathelo:

AmanziAmanzi5 amalitha

Amathuluzi adingekayo:

Isikeli sensimbiIsikeli sensimbi
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
5

Sheet from a pot

Ilayisha incwadi ye-Jupyter…

Izinto

3
  • 1
    Isigaxa Somthofu
    5 kg
    Isibambeli
  • 1
    Amalahle
    3 as required
    Isibambeli
  • 4
    Amanzi
    5 amalitha
    Isibambeli

Amathuluzi Adingekayo

8

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