(1) In every winding-up, subject in the case of insolvent companies to the application in accordance with the provisions of this Act and the law of bankruptcy, all debts payable on a contingency, and all claims against the company, present or future, certain or contingent, ascertained or sounding only in damages, shall be admissible to proof against the company, a just estimate being made, so far as possible, of the value of such debts or claims as are subject to any contingency or sound only in damages or for some other reason do not bear a certain value.