Williamstown Lighthouse
 Timeball tower. | |
| Location | Victoria, Australia |
|---|---|
| Coordinates | 37°52.1′S 144°54.7′E / 37.8683°S 144.9117°E |
| Year first constructed |
Wooden Tower 1840 1st Bluestone 1849 2nd Bluestone 1934 |
| Automated | 1934 |
| Deactivated |
Wooden Tower 1849 1st Bluestone 1859 2nd Bluestone 1987 |
| Height | 17 metres |
| Focal height | 22 metres |
| Range | 15 nautical miles (28 kilometres) |
The Williamstown Lighthouse is situated at Gellibrand Point, in the Melbourne suburb of Williamstown. It was erected in 1852, and replaced earlier navigational aids established from the time of the first settlement in 1835. Built of local basalt, the unusual square plan form is the second oldest in Victoria after the Cape Otway lighthouse. Its height is 17 metres built on an elevation of 22 metres.
The first lighthouse was built in 1839-40. This timber structure was replaced with a square bluestone lighthouse tower, designed by Henry Ginn. The bluestone section has battered lower stories featuring rusticated masonry with smooth string courses and originally had a castellated parapet with mast and spherical, copper plate timeball above. The masonry was quarried and worked by prisoner labour. Four lamps were shining in May 1849; a larger lamp was installed in August 1849.
A timeball apparatus mounted on top of the bluestone tower operated regularly until 1926. Its original use was as a signalling device to ships. From 1858 until 1926 the large ball on the top was dropped each afternoon at one o'clock to allow shipmasters moored offshore to correct their chronometers. The Timeball Tower/Lighthouse had an additional time signal at eight o'clock each night by means of eclipsing the lantern of the lighthouse.
The timeball ceased to operate in August 1926 and the apparatus was dismantled. In 1932, the Timeball Tower was adapted for use as a lighthouse by increasing the height to 98 feet by the addition of a circular brick tower 30 feet in height. A large copper ball encircled the mast and rested in a catcher cup of iron when not in use. The lighthouse operated in this fashion until 1987. In 1989, the circular brick tower was removed by the Williamstown Historical Society so that the square tower could be restored and the timeball apparatus replaced.
References
- Rowlett, Russ. "Lighthouses of Australia: Victoria". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 24 July 2008.
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