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Scissors: Forged, Ground Hollow and Set
Forge

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Forge

11. Ukwakira 2026NO
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Scissors: Forged, Ground Hollow and Set

As the Sheffield cutlery trade made them, each scissor blade and its bow (finger loop) is forged from steel: a hole is punched through the flattened rod and opened over the point of a small beaked anvil to form the bow. Die-forging under a heavy stamp, with the surplus rim sheared off in a fly-press, was replacing hand forging by 1913. The blades are annealed, filed and drilled for the rivet, then ground: each is hollow on its inner face, concave from rivet to point, and given a slight twist toward the other so the edges meet along their whole length. The pair is fitted, wound with iron wire, hardened, reground and polished, and finally riveted together and set.
Hejuru
Works process (early 1900s)

Amabwiriza

1

Forge the blades

Forge each blade and shank; punch a hole through the flattened rod and open it over the beaked anvil to form the bow.

Ibikoresho by'iyi ntambwe:

Inkoni iringaniye y'icyuma cy'ibikoreshoInkoni iringaniye y'icyuma cy'ibikoresho1 igice

Ibikoresho bikenewe:

Uruganda rw'umucuziUruganda rw'umucuzi
IngoyiIngoyi
Ingoyi ntoya ifite umunwaIngoyi ntoya ifite umunwa
Inyundo yo GucuraInyundo yo Gucura
2

Anneal, file and drill

Anneal the blades instead of hardening them; file the shanks and bows to shape, square the joint and bore the rivet hole.

Ibikoresho bikenewe:

Ikariso ry'IcyumaIkariso ry'Icyuma
Icyuma Cyivumbura GihagazeIcyuma Cyivumbura Gihagaze
3

Grind

Grind each blade hollow from back to edge, concave from rivet to point, with a slight twist toward its partner.

Ibikoresho bikenewe:

Ibuye ryo gutyaza ry'uruzigaIbuye ryo gutyaza ry'uruziga
4

Fit and harden

Fit the pair, wind them from the points upward with iron wire, take out the rivet and harden the blades.

Ibikoresho by'iyi ntambwe:

Insinga y'icyumaInsinga y'icyuma0.5 m

Ibikoresho bikenewe:

Uruganda rw'umucuziUruganda rw'umucuzi
Indobo yo gukonjeshaIndobo yo gukonjesha
5

Finish and set

Grind, glaze and polish the bows and shanks again and burnish them; rivet the blades together and set them so the edges meet along their length.

Ibikoresho by'iyi ntambwe:

Utuma tw'icyumaUtuma tw'icyuma1 igice

Ibikoresho bikenewe:

Ibuye ryo gutyaza ry'uruzigaIbuye ryo gutyaza ry'uruziga
Uruziga rwo kurabagiza rwa emeriUruziga rwo kurabagiza rwa emeri

Ibikoresho

3

Ibikoresho bikenewe

9

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