07:00Kat Cowan on BBC Radio SheffieldMelvyn DavenportBBC Radio Sheffield Duration: 2 hours Sat 17th Feb 2018, 07:00 on BBC Radio SheffieldMelvyn Davenport from Wath chats to Kat about his invention and how it's taken off.GenresEntertainmentBrandKat Cowan on BBC Radio Sheffield Source: BBC Online