From Paul Marko's excellent punk77.co.uk :
The Blanks were from Peterborough and were Neil Singleton (vocals), Andy Jackson (guitar), Allen Adams (bass) and Andy Butler (drums), though they were listed under the pseudonyms of Fats O'Grady, Jah Nimrod, Arthur Mullard and Winston Nikomo on the back sleeve of their only single 'The Northern Ripper' / 'Understand' / 'Break Down' (Void, 1979). Bass player Allen Adams later formed "The Destructors" in the 80's who recorded their own version of "Northern Ripper"
View video of "Northern Ripper" here:
Songs from The Northern Ripper single has turned up several times on various unlicensed KBD/Bloodstains compilations, but have had semi-legitimate reissues such as the 7 inch reproduction on Germany's Last Years Youth with a limited issue of 484 copies in 2006 as well as a CD length collection called Northern Ripper LP including the single and live material released through Retro Records in the UK. Due to the scarcity of all formats and my skepticism about the royalties paid to the band on these released, I have posted a copy of the Northern Ripper LP, I've attached a copy of the music for your pleasure:
GET IT HERE: