STEM OF OTHER MATERIALS & Plug in bowls
Was this the first idea ??
From the 14 January edition of Mechanics Magazine, the second image shows a very early idea of a system pipe, but I have no idea whether it was ever actually produced or a patent issued
HOwever there is more detail for the 1st image as follows
Specification of Letters Patent ~580.989, dated April 20th 1897
Application filed Sept 1st 1896
Be it known that I, Franklin Paine, a citizen of the United States, residing at Duluth, in the county of St Louis and State of Minnesota, have invented certain new and useful improvements in Tobacco Pipes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to a novel construction in a smoking pipe, the object being to provide a pipe that will afford a dry and clean smoke
In the accompanying drawings, illustrating this invention, Figure 1 is a central longitudinal section and Figs 2 & 3 are detail views
In said drawings, 1 is the bowl of the pipe, and 2 the stem
The bowl 1 is provided with a chamber 3, communicating with the stem 2, and in the bottom of said chamber is a boss or projection 4. The chamber 3 at its upper end is provided with an outwardly flaring opening 5.
Situated within the bowl is a tobacco-cup 6, having a top flange 7, while the body portion of the cup is adapted to fit tightly within the opening 5 of the bowl. The lower end of the cup 6 is open and fits nicely upon the boss or projection 4, while it is provided with a plurality of notches or openings 8, though which the smoke can pass from the cup to the chamber 3.
In a pipe constructed in this manner all the smoke passes through the chamber 3 on its way to the stem, so that the nicotine settles in the bottom of the chamber, from which it can be removed in an easy manner by simply removing the cup 6. The removable cup 6 also provides a convenient means for cleaning the pipe, since when the cup is removed the entire bowl is exposed.
That in essence is the first example I have found of the basic idea of removing a tobacco chamber from a pipe to ease cleaning, and to collect the ‘gunk’ before it reaches the smokers mouth. Ideas for extra cooling of the smoke seem to have arrived later.
There was an earlier patent for the replcement of bowls on 25th Sept 1888,that however was to enable the shaping of the base of the pipe to a smooth curve, not possible with a corn cob. The cob was attached by a mortise and tenon system..see US Patent 389,889.
An early screw thread attachment for interchangeable bowls was US patent 495258 11th April 1893
I have yet to thoroughly explore patent 40,881 which seems ot be an even earlier idea incorporating cooling, filtering and screw on bowls but at Dec 8, 1863, it may jump the starting date back considerably Should anyone find an earlier idea than these, please contact Tony through the link on this site.