sentences:  The rebellion failed, and the tower does not seem to have required extensive repairs.Most of Norwich's city walls, and all of the gatehouses, were demolished in the late 18th and 19th century as the city industrialised, but the Cow Tower avoided destruction.The tower was now owned by the Trustees of the Great Hospital, who carried out repairs to the structure in the late 19th century, and in 1904, the British Army considered repairing the tower for use as an ammunition depot.