UPDATE 3: Added an Automatic hub example shared by Seth (at bottom)
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Originally Posted April 28th, 2017:
UPDATE 2: Niels shared a photo of his rare Cutlas key that can be used to spin the screws of the Power-Lock Hub.
UPDATE: 1) Well, it seems I forgot to read through this and edit it (I murdered the title for example) 2) The ending of the post has changed, thanks to Paul spotting an ad in the 1976 issue of Four Wheeler Magazine.
This is a Cutlas brochure for the company’s first hub, the Power-Lock.
In January of 1958, James Russell Lloyd, who up to that point had been president of the Free-Lock Company in Denver, filed a patent for a new type of hub on behalf of a company called the Cutlas Tool and Manufacturing Company out of Lyons, Illinois. At the time, Lloyd was still based in Denver (according to the patent filing), so what his relationship was with the Cutlas and Free-Lock companies at that time isn’t clear.
Patent was awarded in January of 1962.
Unlike the Free-Lock hubs, which relied on a rotating center piece to engage and disengage the hubs, the Cutlas hub had two rotating screws that had to be spun to engage and disengage the hubs.
In May of 1958, Lloyd copyrighted the term Power-Lock Free Wheeling Hub, a name which the hubs would be known as from then onward. Here are some photos:
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