Semicircular, segmental and basket arches
Type B1
segmental arch: frame and glazing bead, only bent
Type B10
segmental arch: frame, sash and glazing bead, only bent
Type B19
round arch: frame and glazing bead, only bent
Type B28
round arch: frame, sash and glazing bead, only bent
Type B22
Semicircular arch with straight parts: frame and glazing bead, only bent
Type B33
Round arch with straight parts: frame, sash and glazing bead, only bent
Type B39
Basket arch: frame and glazing bead, only bent
Type B41
Basket arch: frame, sash and glazing bead, only bent