D, a plumber's mate, had been employed by W from 1942 until 1946, and by Y at various dates between 1946 and 1965. He was exposed to asbestos during these periods. D died in 1975 and his daughter claimed compensation from W and from Y, alleging that he had died as a result of asbestosis. The main issue was the cause of death.
R was employed by K Ltd for four years. His work involved making artificial limbs from foam produced in his workplace. During the production of the foam, isocyanate fumes were emitted. R was diagnosed as suffering from asthma, possibly related to the inhalation of isocyanates. He was assessed by the DHSS as having a 20% loss of lung function due to occupational asthma. He claimed that he had regularly inhaled isocyanate fumes and he sought compensation from his employer on the basis of common law negligence and breach of statutory duty under s.63.