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Jun. 27th, 2011 12:05 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
westerlingWe danced at the new Industrial Heritage Museum in Greenfield, today. Green River Tap and Die Molly Team, dancing for the history of Greenfield Tap and Die, one of the local industries that survived well into the 20th century and still exists in some form today.* The museum has a great spot in an old mill building, and there is a catwalk that stretches under the nearby bridge (that has a main road going over it). I walked on the catwalk! and I was not afraid. Which is something I might not have been able to do some years ago. The Green River was rushing beneath our feet, some twenty feet below and the catwalk was one of those that you can see through as you walk across. There was some spectacular graffiti as well, under that bridge, and all in all, I rather wish I had brought my camera.
*According to Wikipedia, "The largest tap and die company to exist in the United States was Greenfield Tap & Die (GTD) of Greenfield, Massachusetts. GTD was so irreplaceably vital to the Allied war effort from 1940-1945 that anti-aircraft guns were placed around its campus in anticipation of possible Axis air attack. The GTD brand is now a part of Widia Products Group." Additionally, if you actually want to know what taps and dies are, Wikipedia explains, "Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the mating pair (e.g., a screw). The process of cutting threads using a tap is called tapping, whereas the process using a die is called threading. Both tools can be used to clean up a thread, which is called chasing." No giggling, please. And especially no giggling when you read further down the page and get to the part about bottoming taps.
*According to Wikipedia, "The largest tap and die company to exist in the United States was Greenfield Tap & Die (GTD) of Greenfield, Massachusetts. GTD was so irreplaceably vital to the Allied war effort from 1940-1945 that anti-aircraft guns were placed around its campus in anticipation of possible Axis air attack. The GTD brand is now a part of Widia Products Group." Additionally, if you actually want to know what taps and dies are, Wikipedia explains, "Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the mating pair (e.g., a screw). The process of cutting threads using a tap is called tapping, whereas the process using a die is called threading. Both tools can be used to clean up a thread, which is called chasing." No giggling, please. And especially no giggling when you read further down the page and get to the part about bottoming taps.