the historical origins of the tinfoil hat

The Air Loom Gang, describing a psychotic delusion based on state-of-the-art 1810 technology:

Matthews was convinced that outside the grounds of Bedlam, in a basement cellar by London Wall, a gang of villains were controlling and tormenting his mind with diabolical rays. They were using a machine called an 'Air Loom', of which Matthews was able to draw immaculate technical diagrams, and which combined recent developments in gas chemistry with the strange force of animal magnetism, or mesmerism. It incorporated keys, levers, barrels, batteries, sails, brass retorts and magnetic fluid, and worked by directing and modulating magnetically charged air currents, rather as the stops of an organ modulate its tones. It ran on a mixture of foul substances, including 'spermatic-animal-seminal rays', 'effluvia of dogs' and 'putrid human breath', and its discharges of magnetic fluid were focused to deliver thoughts, feelings and sensations directly into Matthews' brain. There were many of these mind-control settings, all classified by vivid names: 'fluid locking', 'stone making', 'thigh talking', 'lobster-cracking', 'bomb-bursting', and the dreaded 'brain-saying', whereby thoughts were forced into his brain against his will. To facilitate this process, the [Air Loom] gang had implanted a magnet into his head. As a result of the Air Loom, Matthews was tormented constantly by delusions, physical agonies, fits of laughter and being forced to parrot whatever nonsense they chose to feed into his head. No wonder some people thought he was mad.