Tuberosity Meter

In 1960, Thomas Scoville received a patent for a device for measuring tuberosity. He explained that the purpose of measuring tuberosity was to improve the fit of chairs:

the chief object of the present invention is to provide a novel apparatus which will provide a visual and instantaneous indication when a chair under test is properly dimensioned to fit any given person.

Even after looking up the meaning of the word 'tuberosity' in the dictionary, it took me a while to figure out what exactly Scoville's device was measuring, and what it possibly had to do with chairs. Because the dictionary simply defined tuberosity as a 'rounded swelling.' Some more googling revealed that Scoville must have been referring to the Ischial tuberosity, or 'sitting bone'. As defined by wikipedia, this is:

a large swelling posteriorly on the superior ramus of the ischium. It marks the lateral boundary of the pelvic outlet. When sitting, the weight is frequently placed upon the ischial tuberosity. The gluteus maximus provides cover in the upright posture, but leaves it free in the seated position. The distance between a cyclist's ischial tuberosities is one of the factors in the choice of a bicycle saddle.
     Posted By: Alex - Sun May 24, 2020
     Category: Body | Furniture | Inventions | 1960s

Tuberosity gives a whole new meaning to couch potato. BTW, Thomas Scoville isn't the guy who invented the Scoville Scale of pepper hotness. That was Wilbur Scoville.
Posted by ges on 05/24/20 at 12:43 PM

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