means the Pneumoconiosis Compensation Act, 1962 (Act No. 64 of 1962), including the other laws repealed by section 136 and any laws relating to the payment of compensation to or in respect of persons in respect of miner’s phthisis or silicosis or pneumoconiosis or tuberculosis contracted in the employment of mines or as a result of employment at mines, which preceded the Pneumoconiosis Compensation Act, 1962;