On and after the appointed day a person who has become an inmate of any poor law institution for the purpose of obtaining medical or surgical treatment shall not, so long as he continues to require such treatment, be disqualified, on the ground only that he is such an inmate, for receiving or continuing to receive an old age pension under the Old Age Pensions Acts, 1908 to 1924, or under the Widows', Orphans' and Old Age Contributory Pensions Act, 1925, and accordingly subsection (1) of section three of the Old Age Pensions Act, 1919, and paragraph one of the Third Schedule to the Widows', Orphans' and Old Age Contributory Pensions Act, 1925, shall have effect as if the words “during a period of ” three months from the date on which he becomes “such an inmate if he,” were omitted therefrom, and as if after the words “so long ” there were inserted the words " as he. "