I wanted to share a few pictures and some information on these Athol pipe jaws I received recently. They (and attachments like them) could be considered “less glamorous” than the vises themselves, but nonetheless I find them interesting.
This is a set of either № 15 or № 16 Athol pipe jaws. No examples of these jaws that I’ve ever seen bear the catalog model numbers, which makes the size a little difficult to identify. Based on the fact that the they loosely fit the 4” vise pictured and snugly fit a different 4.5” vise (not pictured), I lean towards a № 15, but I’ll have to try them on a couple of my 6” vises first.
The design was a culmination of the following three patents:
• #211,993: James F Hall of Havana, NY on February 4, 1879
• #231,181: Mortimer G Lewis of Lowville, NY on August 17, 1880
• #252,632: William B Tatro of Hartford, CT on January 24, 1882 (patent picture below)
The pipe jaws experienced evolutions in design with each patent listed above, but from the very beginning, the design was one assigned to and manufactured by the Prentiss Vise Company as their “Peerless Swivel Pipe Jaws). By 1891, the design’s evolution had streamlined into the model represented below. As of yet, no identified examples of the earlier variations have been found.
As the saying goes “imitation is the highest form of flattery”. I imagine the Prentiss Vise Company would have something to say about that (and they did…), but the Athol Machine & Foundry Co eventually copied the design and began manufacturing it themselves (likely after the patents began expiring around the turn of the century). You might say, “well how do you know that Prentiss wasn’t simply manufacturing these jaws for Athol and branding them with Athol’s name”? I’m very glad you asked. Beginning with Prentiss’s 1902 Catalog X, the company places a NOTICE on the second page of the catalog that states, “We desire to call attention of our patrons to the fact that our goods are imitated, in an inferior manner, by some unscrupulous manufacturers. We do not expect to provide all the vises used, but we do ask that when you honor us by ordering a Prentiss Vise, or other vises of our manufacture, you will see that your dealer supplies a vise bearing our name (or the name under which it is catalogued in this price-list), which is conspicuously shown on every vise we make.” Other companies (Columbian, Reed, Barrett, and Yost, to name a few) are also suspected of copying Prentiss’s vise designs around this time. While no company is specifically mentioned in this notice, I find it hard to believe that Prentiss would be in bed with any of these manufacturers behind the scenes while simultaneously calling them “unscrupulous manufacturers” to their patrons. This leads me to believe that Prentiss was not manufacturing and rebranding goods for other manufacturers, but that those other manufacturers were simply copying Prentiss’s goods.
Ultimately, I would love to acquire a pair of Prentiss jaws so that I can compare them. I hope this has been an interesting, Friday morning read. Have a great weekend!