The Tate has been bought contemporary art worth �150,000 by the Frieze Fair Special Acquisitions Fund, including Alexandre da Cunha's Skateboarderistismatronics - a ceiling fan made from skateboards.

Zoe Leonard's Wax Anatomical Model (Shot Crooked From Above) was one of five works by the New York photographer added to the Tate's collection.

Stanley Brouwn's 1000mm, comprising a grey filing drawer filled with 1,000 blank index cards, was sold for �15,000. The Tate believes the 60-year-old Dutch artist deserves greater appreciation.

Matthew Monahan's Untitled comprises a set of small sculptures made from drywall, floral foam and wax - encased in glass.

David Lamelas' performance piece Time was bought for �20,000. Members of the public are invited to stand in line and ask each other what the time is, in a work first performed in 1970.

Close Up Gallery by San Francisco artist Daria Martin was also added to the Tate's collection. Previously shortlisted for this year's Beck's Futures contemporary arts prize, the film is used to explore contrasts.

All 14 works, including Lithuanian artist Deimantas Narkevicius' film The Role of a Lifetime, are on show at London's Frieze Art Fair. They will subsequently be added to the Tate collection, displayed in its galleries in London, Liverpool and St Ives.