Popular at home, in hotels and as a classic 1960s TV quiz show prize, the model D25B boiled the water, set off the alarm, switched on the light and brewed the tea. Goblin 'Teasmade', Model D25B, 1966. Goblin Teasmade, the first to be manufactured at the Leatherhead Works by the British Vacuum Cleaner and Engineering Company Ltd. The Goblin automatic tea-maker was invented by W H Brenner Thornton and William Hermann who first patented it in 1934. The British Vacuum Cleaner and Engineering Company Ltd. of London later bought the patent rights and subsequently sold it under the Goblin Teasmade name.