Traditional Blacksmith Charcoal Clamp Guide

Used in

• Chapter 1 The Rhythm of the Hearth
• Chapter 2 The City Is a Mine

The rows that check it

• 8 confirmed
• 1 amended
• 2 marked for safety

• I3 amended Safety Carbon monoxide from the charcoal fire kills without smell in an hour at the levels a closed workshop reaches; 400 ppm kills within an hour; forge outdoors or in a shed open at …
• I7 confirmed Safety Charcoal fines blown into the tuyere can flash; fresh charcoal spread thin in the open 24 to 48 h with water at hand or it can heat and ignite in a bin
• H21 confirmed Holznot debate: real in places, exaggerated by governments; Brandenburg pine planted by the square mile from the 18th century because nothing else pays on sand
• I34 confirmed JABOD: African and Asian ancestry three thousand years old; box 60 cm square, 18 to 23 cm deep; trench two fists, 20 cm by 10 cm by 10 to 13 cm; pipe 20 to 25 mm inside, 60 to 90 …
• I37 confirmed Coal wants a deep pot and bottom blast; charcoal in a deep pot blows out in sparks and burns the steel; charcoal wants a shallow side-blast trench
• I39 confirmed Fire zones: oxidising at the mouth, reducing a hand's width above; the work buried under the mound, never on top; flame colours blue to yellow-white, welding when the blue stops
• I41 confirmed Charcoal walnut to small egg (25 to 50 mm); fines out; hardwood oak, beech, hornbeam, ash, hickory; birch, elm, maple good; pine and spruce poor; ring test like a cup
• I42 confirmed Coal about 1 kg/h at light work; charcoal nearly the same value by weight, a tenth as dense; a day about 100 litres or 12 to 15 kg charcoal, 50 to 60 kg wood; a village smith 200 …
• I43 confirmed Meiler, Quandel, Stübbe; the Köhler trade lasted in the Harz into the 1950s

In the Index

Fire and fuel Iron and steel The cellar and the store Wood, willow and the cask