sentences:  Originally established with 15 beds in 1802 in Gray's Inn Road, it moved in 1815 to the west wing of the Smallpox Hospital at Battle Bridge where it had 120 beds.After the Northern Railway bought the original site for Kings Cross station the compensation money paid enabled the charity to commission a new Hospital on Kettle Field, a 4-acre site in Liverpool Road, Islington with 200 beds.The new hospital, which was designed by Charles Fowler, opened in 1848.