22.—(1) A party to proceedings before an industrial tribunal who is dissatisfied in point of law with a decision of the tribunal may, according as rules of court may provide, either—
(a)appeal therefrom to the Court of Appeal, or
(b)require the tribunal to state and sign a case for the opinion of the Court of Appeal.
(2) Rules of court may provide for authorising or requiring the tribunal to state, in the form of a special case for the decision of the Court of Appeal, any question of law arising in the proceedings.