A gravity beam was a form of quick transport in which the operator was pulled towards the source of its power.
The Eleventh Doctor, Amy Pond and Rory Williams were forced to embark one of these by the Parliament of the Daleks in order to enter the Dalek Asylum. Rory ended up travelling upside down. (TV: Asylum of the Daleks)
Kotris ordered several Daleks to use a gravity beam in order to save Molly O'Sullivan from falling into the core of Srangor. (AUDIO: X and the Daleks)
