Local Appeal Tribunal case file for Charles William Wheatcroft, aged 43, Surface Worker at Shirland Date of birth: Marital status: Married Address: Not given, Not given Type of benefit claimed: Injury benefit Type of injury: Injury - knees and wrists Further information: NUM representative gave: 'Was working on conveyor belt, which was started up by unauthorised person. He was pitched forward and injured knees […] Fall of coal additional.' Medical information gained since an adjourned hearing of 13 December 1955 included: other joints became involved developing into what is known as Polyarthritis. This is a condition of obscure aetiology but [...] shock and trauma is a predisposing factor'. 1956