The full title of this act:
An Act for making perpetual so much of an Act made in the Tenth Year of the Reign of Queen Anne, for the reviving and continuing several Acts therein mentioned, as relates to the building and repairing County Gaols; and also an Act of the Eleventh and Twelfth Years of the Reign of King William the Third, for the more effectual Suppression of Piracy; and for making more effectual the Act of the Thirteenth Year of the Reign of King Charles the Second, intituled, “An Act for establishing Articles and Orders for the regulating and better Government of His Majesty’s Ships of War, and Forces by Sea.”
This act commenced on 23rd November 1719. Section 3 amends the Piracy Act 1698, which was about to expire, making it perpetual, as well as extending existing Vagrancy acts. It was repealed on 15th July 1867 by the Statute Law Revision Act.
And be it further enacted by the authority aforesaid, that the act made in the eleventh and twelfth years of the reign of his late majesty King William the Third, intituled An Act for the More Effectual Suppression of Piracy, shall be and is hereby made perpetual.
You can read the original document at books.google.co.uk.