"We as a Tribunal were unable to find that there was anything which justified the applicant terminating his employment in circumstances entitling him to complain that he had been constructively dismissed. There is no doubt that the nature of the job which he had originally been employed to do had changed but this had been a gradual process and as at the time when the employment terminated nothing had happened which would entitle the applicant to maintain that his employers conduct was such that he was entitled to terminate his employment in circumstances amounting to an unfair dismissal. It is, therefore, necessary to dismiss this application."