springald

A springald, or espringal, was a torsion siege engine device for throwing bolts in medieval times. It is depicted in a diagram in an 11th-century Byzantine manuscript, but in Western Europe is more evident in the late 12th century and early 13th century. It was constructed on the same principles as an Ancient Greek or Roman ballista, but with inward swinging arms and threw bolts instead of stones. It was also known as a 'skein-bow', and was a torsion device using twisted skeins of silk or sinew to power two bow-arms.

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espringal
weapon, tension artillery, torsion siege engine, 

cat, mangonel, polybolos, sambuca, tension artillery, torsion siege engine, weapon, 

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Location: KML, Cluster Map, Maps,

Frameless

Giulio Parigi - Decoration (detail) - WGA17026

Машина для метания камней и бомб рисунок Леонардо да Винчи

Índios Caripunas - 767, Acervo do Museu Paulista da USP

Trabalhadores Norte-Americanos da Ferrovia com Índios da Tribo Caripuna - 6-B, Acervo do Museu Paulista da USP (cropped)

Trabalhadores Norte-Americanos da Ferrovia com Índios da Tribo Caripuna - 6-B, Acervo do Museu Paulista da USP

Trabalhadores com Índios da Tribo Caripuna - 766, Acervo do Museu Paulista da USP

Машина для метания камней и бомб рисунок Леонардо да Винчи

Roman d'Alexandre fol.201r

Apparatus for shooting large arrows LCCN2006680136

Spingarda-01

Type	Subtype	Date	Description	Notes	Source
commons	image		Giulio Parigi - Decoration (detail) - WGA17026		Commons
commons	image		Машина для метания камней и бомб рисунок Леонардо да Винчи		Commons
commons	image		Índios Caripunas - 767, Acervo do Museu Paulista da USP		Commons
commons	image		Trabalhadores Norte-Americanos da Ferrovia com Índios da Tribo Caripuna - 6-B, Acervo do Museu Paulista da USP (cropped)		Commons
commons	image		Trabalhadores Norte-Americanos da Ferrovia com Índios da Tribo Caripuna - 6-B, Acervo do Museu Paulista da USP		Commons
commons	image		Trabalhadores com Índios da Tribo Caripuna - 766, Acervo do Museu Paulista da USP		Commons
commons	image		Машина для метания камней и бомб рисунок Леонардо да Винчи		Commons
commons	image		Roman d'Alexandre fol.201r		Commons
commons	image		Apparatus for shooting large arrows LCCN2006680136		Commons
commons	image		Spingarda-01		Commons