In the Teeth of the Evidence is the title of a collection of short stories by Dorothy L. Sayers (ISBN 0-380-01280-4) as well as the title of one of the stories.
... by the slipping friction.
The device is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by ...