The Titanic's davits could have held four boats at a time, but Ismay thought that it would cause the passengers to worry, and take up too much space. In the end insted of carrying the 64 designed boats, or even 48, she carried only 14 regular boats, 2 emergency boats, and four Engelhardt collapsibles.
So, the davits were not full, but law only required 16 boats.