As mentioned on the Edward Leverich Hall post, there was mention that Hall (or his company) possessed the patent rights. So…I started to look for a patent. In doing so, I found several references to patents for poison indicators or poison warning devices, but one poison indicator, in particular, I was excited to find. After a little more research, I ran into an article in a 1915 issue of Pharmaceutical Era
Many mechanical inventions have been devised for apprising individuals of the poisonous contents of bottles that they may be called upon to handle. One of the most recent devices of this character is the invention of Mahalah T. Hudson, Kirksville, Mo. (Patent No. 1,131,839), shown in the accompanying illustration. It comprises a frame formed from a blank and provided with a central body, upon which are formed integral arms bent upward as to me at their end portions; a bell carried by the ends of said arms, integral plates formed upon said body and extending at right upper angles thereto, said plates being adapted to rest upon the upper portions of a cork of a bottle for retaining the frame in its correct vertical position, and spurs extending downwardly from the lower portion of the body for digging into the cork whereby the poison indicator will be held in engagement and rest evenly on the upper portion of the cork.
And, might be saying to yourself, “Okay, not so fast Josef, there isn’t a screw, there are two spurs…”
Yes, you would have a point there… But, if you look at the other illustration from the patent drawing, that wasn’t shown in the Pharmaceutical Era blurb, there IS a corkscrew.
That little bell that you have in your collection, is indeed a patent. And, a dead ringer for the patent drawing!
A patent for a poison indicator. And, one that does not appear in the front or the back of O’Leary.
The 1915 Hudson patent #1,131,839…