Philadelphia’s Clock Tower.
We give herewith a sectional view of the handsome clock tower which is to grace the new public building in Philadelphia, of which in a recent issue of FIRE AND WATER a general description was printed.
The Tacony Iron and Metal Company has received the contract for this work, which, it is expected, will be completed in twelve months. Four wrought-iron box girders will be set on the top of the present granite bondstones, with cast-iron bed plates to insure a solid bearing, and bolted down to eight anchor rods built in the walls. Resting on each of these box girders will be eight composite columns rising vertically to a height of sixty-seven feet eight inches above the marble work, and above that converging toward the centre to support the figure of William Penn at a height of 173 feet 3 inches. Outside of this work will be erected around the whole structure upplementary Iraming to support the outside shell of metal work. The whole outside shell to the height of sixty-seven feet eight inches will be cast-iron. A gutter of aluminium bronze will be set on top of the marble cornice, to drain into the rain water conductors in the walls. The whole of the external covering of the dome, from the level of sixty-seven feet eight inches above the marble work upwards, including the four eagles, the four groups of figures and the central figure of William Penn on tne apex, will be of aluminium bronze. From the report of John McArthur, Jr., architect of the work, is taken the following:
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