"All notices and documents required or authorised by these Rules to be sent or given to any person hereinafter mentioned may be sent by post... or delivered to or at - (a)... (b)... (c)... (d) in the case of a notice or document directed to a party:- (i) his address for service specified in the originating application [and then there are other provisions which are not relevant and Rule 17(3) concludes
"A party may at any time by notice to the Secretary of the Tribunals and to the other party or parties (and, where appropriate to the appropriate conciliation officer) change his address for service under these Rules."
"The clerk to the tribunal shall transmit any document referred to in paragraphs (2), (4) and (5) of this Rule to the Secretary of the Tribunals who shall as soon as may be enter it in the Registrar and shall send a copy of the entry to each of the parties and to the persons entitled to appear who did so appear and, where the originating application was sent to a tribunal by a court, to that court."
"Every interlocutory application made to the Appeal Tribunal shall be considered in the first place by the Registrar who will have regard to the just and economical disposal of the application and to the expense which may be incurred by the parties in attending an oral hearing.
"Where an application is disposed of by the Registrar in pursuance of rule 16(2) any party aggrieved by his decision may appeal to a judge and in that case the judge may determine the appeal himself or refer it in whole or in part to the Appeal Tribunal.
"However the Appeal from the Order is 20 days out of time and the question of time will be considered as a preliminary point at a hearing by a Judge."
"The practice on an appeal from a registrar of the Employment Appeal Tribunal to a judge is the same as that which applies under R.S.C., Ord. 58 on an appeal from a Queen's Bench master to a judge in chambers. It is an actual re-hearing of the application which led to the order under appeal and the judge will treat the matter as though it came before him for the first time. The judge will apply the principles enunciated in Evans v Bartlam [1937] A.C. 473 per Lord Atkin at p. 478. The judge is no way fettered by the previous exercise of the master's discretion. On other matters of practice the judges of this appeal tribunal will tend to follow the practice of the judge in chambers in the Queen's Bench."
"The time prescribed by these Rules or by order of the Appeal Tribunal for doing any act may be extended (whether it has already expired or not) or abridged..."