This is a patent labeled, “Device for Waking Persons from Sleep“, from 1882. Now we call it alarm clock but I guess this would be one of the first alarm clock patents ever. Looks awful painful though when waking up to this device, probably not good for modern ages…
. . . The object of my invention is to construct a simple and effective device for waking persons from sleep at any time which may have previously been determined upon, the device being also adapted fo
