
Sketch included in Patent US 991844 A: Therapeutic bottle, by L.F. Gillett of Concord, NH.
In the early twentieth century most New Hampshire homes did not have central heating, and warming pans were in common use. These devices warmed up the sheets, and also kept the bed warm at least for a few hours, especially if you didn’t have a sleeping companion.
At first heated brick and hot stones were used. Later a warming pan would hold embers from the fire place. Eventually this device evolved into a closed metal container that held hot water. It was this latter sort of device that was produced by Louis F. Gillette in Concord, New Hampshire.
In 1910 L.F. Gillette submitted a patent for a “Therapeutic” bottle made of metal with a removable stopper. His improvement was making it not only a water bottle but “secondly, for use as a reservoir for a fountain syringe.” Continue reading




