ClipArt ETC
A ribbed vault of the English type with divided groin-ribs and ridge-ribs.

English Style Ribbed Vault

A ribbed vault of the English type with divided groin-ribs and ridge-ribs.

A: Penetrations by small semi-circular vaults sprung from same level. B: Intersection by small semicircular vault sprung from higher level; groins form wavy line. C: Intersection by narrow pointed vault sprung from same level; groins are plane curves.

Vaults, Penetrations and Intersections

A: Penetrations by small semi-circular vaults sprung from same level. B: Intersection by small semicircular…