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Old 21-03-2015, 10:44   #1
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What's this thing called?

Sorry guys, can't figure out the name of this in english for the life of me... Who can help?

http://eshop.lecot-raedschelders.be/...us/F376010.jpg
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Old 21-03-2015, 10:47   #2
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Re: What's this thing called?

Chain joiner link. ACCO/Peerless chain company call it a coupling link.
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Old 21-03-2015, 11:02   #3
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Re: What's this thing called?

McMasterCarr calls them "figure eight connectors", can be used for chain or wire rope:

McMaster-Carr

Hanessupply.com calls them "Hammerlock link"

Dirk
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Old 21-03-2015, 17:06   #4
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Re: What's this thing called?

Hammerlok, coupling link G (where G = Gunnebo).

Such links were invented or first perfected in Sweden by Gunnebo in the early 1950s.

See: http://www.gunneboindustries.com/Lif...ink-G-Classic/

For Gunnebo's claim to having innovated in 1952, see: Gunnebo Industries - Innovation

Gunnebo also makes a coupling it calls Berglok, half of a 'coupling link G'.

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Old 21-03-2015, 17:39   #5
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Re: What's this thing called?

The on-line and searchable portion of Sweden's patent database only goes back to the 1970s, so I cannot find a patent for the coupling link G.

The coupling link G was a significant product, so my guess is that Gunnebo did file and gain a patent.

The names 'hammerlock' 'hammerlok' all relate to the force needed to seat and unseat the clevis pin. The clevis pin can be removed and replaced, but limits are placed on how many times a pin can be hammered out before it ought be replaced. Gunnebo of course sells replacement clevis pins.

Gunnebo has an office in downtown Stockholm. I have a vague memory that it has a small museum display about the history of the company dating back to the smithy in the village of Gunnebo in the 18th century.

And learn the lesson: if you're innovating, come up with a name that ties the product to you. Gunnebo could have marketed their coupler as a 'Gunlink', 'Gunnelink', 'G-link', 'G-coupler', 'G-spot' or whatever ...


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Old 21-03-2015, 18:22   #6
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Re: What's this thing called?

Obviously, it is a "thingy." A word used more commonly as one gets older.
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