Sessions of the court to hear oral arguments of appeals shall be held at such times as the court fixes. At least twenty days prior to such sessions the clerk shall prepare a list of cases for hearing from the cases then pending before the court which are at issue. Appeals in which the time for filing briefs has expired shall be deemed at issue. No appeal shall be assigned for argument unless written request is made by separate instrument for such argument by counsel within ten days after the appeal is at issue. No stipulation to continue an appeal or to change the date set for hearing will be recognized by the court except by order of the court upon good cause shown. Notice of the date of oral argument shall be mailed by the clerk to the attorneys of record twenty days prior thereto.