With the Symbolists 'free verse' was an attempt to capture finer modulations of music than the rigid frame of metre allowed.
If the monster ship, of rigid frame, were indeed the ideal form of dirigible it would be imitated on every hand.
A very easy way to construct a rigid frame is shown in the illustration.
In determining upon a rigid frame the Count was not a pioneer even in his own country.
She strove to warm his cold hands, to breathe new life into his rigid frame.
The Baldwin engine is cheap, but apparently of indifferent finish, and is built on a rigid frame.