Life indicator for coffins patent, 1882

Life indicator for coffins patent, 1882

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Credit: US PATENT AND TRADEMARK OFFICE/SCIENCE PHOTO LIBRARY

Caption: Life indicator for coffins patent, 1882. Artwork of a device designed by John Krichbaum to save a person accidentally buried alive. The person would rotate a set of handles connected to a periscope like device while a dial visible above the surface revealed the movement. A more forceful upwards push allowed air to enter the coffin. Such 'safety coffins' were a common invention at the time owing to a fear of unintentional live burial. There are no known reports of such devices actually saving an accidentally buried person.

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Keywords: 1882, 19th century, accidental burial, american, artwork, burial, buried, coffin, dead, design, designs, device, diagram, drawing, engineering, equipment, historical, history, illustration, invention, john krichbaum, life indicator, live burial, machine, mechanical, north america, old, patent, premature burial, safety coffin, technological, technology, united states, usa, vintage

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