UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Forge Hearth of Mud Brick with a Clay Tuyere from the Back Wall
A forge is a hearth for heating metal: a bed of burning charcoal held against the mouth of a tuyere, the pipe that brings air from the bellows. The simplest is a hole in the ground with a pipe leading into it. Build a low box of mud brick with a clay pipe through the back wall, blown by bellows.
The picture: a forge fire blown hot, throwing sparks.
Utangiye
Two days
Amabwiriza
1
1
Lay the box
Lay the box
On level ground, lay mud bricks in clay mortar into a low open box, three courses high, with a shallow fire pot in the middle (step 5).
Ibikoresho by'iyi ntambwe:
Amatafari y'ibumba yumishijwe ku zuba32 ibice
Ibumba20 kgIbikoresho bikenewe:
Isuka
Amazi
Ibakuli ry'icyuma2
2
Make the tuyere
Make the tuyere
Roll a thick clay pipe round a wooden stick, about 4 cm bore (ours), and pull the stick out. Set it through the back wall so it opens just above the fire pot, and bed it in clay.
Ibikoresho by'iyi ntambwe:
Ibumba3 kgIbikoresho bikenewe:
Inkoni y'igiti igororotse3
3
Dry and connect
Dry and connect
Let the clay dry for a day or two. Join the bellows nozzle to the outer end of the clay pipe.
Ibikoresho bikenewe:
Umuvuba4
4
Light the forge
Light the forge
Light kindling from a bow-drill ember in the fire pot, heap charcoal over it in front of the tuyere and blow gently until the bed glows.
Ibikoresho by'iyi ntambwe:
Amababi yumye n'udukwi1 igiceIbikoresho bikenewe:
Igitobora cy'Umuheto
AmakaraUmuvuba
Uturindantoki tw'uruhu tw'akazi5
5
Bricks for the hearth
Bricks for the hearth
Gupakira ikaye ya Jupyter…
Ibikoresho
3- Umwanya
- 23 kgUmwanya
- 1 igiceUmwanya
Iki gishushanyo gikora
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