Samvinna
LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Crucibles of White Clay and Ground Old Crucibles for Melting Gold and Silver (Theophilus, 12th Century)
The goldsmith's crucible from Theophilus's De Diversis Artibus (12th century): finely ground white clay mixed with ground fragments of old crucibles (or of white pots that survive heating to a glow), two parts to a fourth part, beaten with warm water and formed into crucibles large and small.
Byrjandi
About 1 day plus drying
Leiðbeiningar
1
1
Mix proportions
Mix proportions
Hleð Jupyter-vinnubók…
2
2
Read De Diversis Artibus, Book III
Read De Diversis Artibus, Book III
"Take white clay and grind it very fine, and old vases, in which gold or silver has been before melted."
3
3
Prepare the clay and grog
Prepare the clay and grog
Grind white clay very fine. Break up old crucibles in which gold or silver has been melted and grind them separately; if you have none, heat baked fragments of white earthen pots until they glow, and if they do not crack let them cool and grind them.
Efni fyrir þetta skref:
Kaólínleir1 stykki
Brot úr leirkerum1 stykkiNauðsynleg verkfæri:
Pípetta
Aflinn
Hamar4
4
Mix and form
Mix and form
Take two parts of the ground clay and a fourth part of the burnt fragments (a third in the Wolfenbuttel manuscript), mix with warm water, beat it strongly, and form crucibles large and small.
Nauðsynleg verkfæri:
20 lítra fata
Trésleggja5
5
Dry
Dry
Let the crucibles dry; meanwhile weigh out the gold or silver to be worked.
6
6
Troubleshooting
Troubleshooting
Crucible troubleshooting.
Flow
Loading...
7
7
History and honest limits
History and honest limits
From Theophilus, **De Diversis Artibus**, Book III, chapter XXII, translated by Robert Hendrie (1847) (checked on the archive.org scan essayuponvarious00hend, p. 227). He gives no sizes and no firing; kaolin for his white clay, the tools and the diagram are ours.
Efni
2- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
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