No person shall raise up from any street, sidewalk, wharf or place of public resort within the City, any cask, bale of goods or other articles of merchandise into the second or higher story of any house, store or other building upon or adjoining the same, and on the outside of the building, and no person shall deliver from the second or any higher story of any house, store or other building, on the outside of the same, which adjoins upon any street, sidewalk, wharf or place of public resort within the City, any cask, bale of goods or other article of merchandise, except at such times and places, and under such restrictions and limitations as the Director of Public Service shall authorize and direct. However, this shall not be construed to extend to raising any materials or other articles which may be necessary in erecting, repairing or taking down any building, or for removing any merchandise or other article, in case of danger by fire or other inevitable casualty.