Liberty Mutual Insurance v. Perry

1. A “safety, appliance,” for a wilful failure or refusal to use which by an employee would debar him of the right to compensation under the workmen’s compensation act for an injury resulting from his failure to use a safety appliance, is not necessarily an appliance physically attached to or physically connected with the machine out of the use of which by the injured employee the injury arises. Any instrumentality provided by the master for use by an employee in the operation of a machine, the use of which in the operation of the machine would reduce the danger or hazard to the employee from…