The proposed Articles of Incorporation of said Authority shall be executed by and on behalf of the Township of East Lampeter by the Chairman of the Board of Supervisors, and the Seal of said Township shall be thereto affixed and attested by the Township Secretary. The Township Solicitor is authorized and directed to cause to be published the notice of this article which shall contain the substance of the Articles of Incorporation as required by the aforementioned Act and, when said Articles of Incorporation are properly executed by the Township of East Lampeter, the same shall be filed with the Secretary of the Commonwealth.