Improvement in Hat-Ventilators.
Description:
Patent for improvement in mode of ventilating hats, bonnets, and or caps by “providing the inside of the head-coverings, at the point of contact with the head, with a liuing or an elastic spiral formed into a cushion, through which the air can freely circulate around the whole head.” (Lines 28-32) Illustration is included.
Date:
March 30, 1869
Creator:
Stremme, Conrad C.