OldTools Archive
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265751 | Don Schwartz <dks@t...> | 2018‑04‑22 | a curious clamp |
Jim Bode has sold a group of small clamps - said to be instrument makers' clamps. Three are typical small wooden clamps. But the fourth is an odd duck AFAIC, for two reasons I guess. 1. I can't figure out how it works, and 2. I can't see what it might be used for. It seems that one of the screws , on the right side in the photo, might be used to mount the clamp onto something while the other is being put to work, but again, I don't see how. It seems like there should be a pivot point in there somewhere, but I can't see one. Anyone have any ideas, or seen another like it? https://www.jimbodetools.com/collections/whats-new/products/four-tiny-4 -inch-instrument-makers-clamps-79481">https://www.jimbodetools.com/collections /whats-new/products/four-tiny-4-inch-instrument-makers-clamps-79481 Don, who finally got his CDs all shelved! -- I have decided to leave my past behind. So, if I owe you money...I am sorry, but I’ve moved on. “The events of the world do not form an orderly queue like the English, they crowd around chaotically like the Italians.” Carlo Rovelli |
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265752 | Ed Minch <ruby1638@a...> | 2018‑04‑22 | Re: a curious clamp |
Don 3 of them are pretty standard screw clamps - not really used on instruments that I know of. I don’t recognize the 4th, but it is 2 clamps in one. I can’t imagine what you would be clamping if both sides of the clamp are used at once. Ed Minch |
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265753 | Don Schwartz <dks@t...> | 2018‑04‑22 | Re: a curious clamp |
On 2018-04-21 6:32 PM, Ed Minch wrote: > Don > > 3 of them are pretty standard screw clamps - not really used on > instruments that I know of. I don’t recognize the 4th, but it is 2 > clamps in one. I can’t imagine what you would be clamping if both > sides of the clamp are used at once. > Ed Minch It looks a bit like a vise. One screw to mount the clamp, the other to do real work. But what? General purpose or a specialty item? Don -- I have decided to leave my past behind. So, if I owe you money...I am sorry, but I’ve moved on. “The events of the world do not form an orderly queue like the English, they crowd around chaotically like the Italians.” Carlo Rovelli |
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265754 | "yorkshireman@y..." <yorkshireman@y...> | 2018‑04‑22 | Re: a curious clamp |
Imagine the laboratory of Dr Frankenstein. Apparatus held upright and clamped with one arm around the vertical support rod, and the other clamp to hold the test tube… Hahaaahaha ! (wait for the lightning) Or,more prosaically, a round bench dog being held tight, and a ‘something’ you need to work on being held in the open end. Or… Such a useful and elegant solution to someone’s clamping problems. R |
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265755 | Erik Levin | 2018‑04‑22 | Re: a curious clamp |
Don inquired: >t seems like there should be a pivot point in there somewhere, but I can't see one. There is a small spot on the straight-ish (left side) part, about half way along the length.I strongly suspect that there is a steel (or brass) pin-- maybe a nail-- through there a a pivot, with a metal tongue inside. As to purpose, I agree that is is for attaching to a round rod and holding something else. Not likely a lab clamp, unless for real specialty like explosives. Too many common chemicals turn wood to waste quickly. Maybe a clamp for stretching skins? *** This message was sent from a convenience email service, and the reply address(es) may not match the originating address |
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265756 | William Ghio <bghio@m...> | 2018‑04‑22 | Re: a curious clamp |
> On Apr 22, 2018, at 6:01 AM, Erik Levin via OldTools |
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265757 | The Clamp Guy <clampguy@v...> | 2018‑04‑23 | Re: a curious clamp |
As I read it, the left screw allows the clamp to be fastened to a pipe, and the right screw holds the workpiece in place. Alternatively, the right screw attaches the clamp to a (thin) table or plank, and the left screw holds a pipe or other cylindrical object to be held in place. Whichever, the orientation of cylinder and plank are fixed - no pivot. Just can't think of anything like that. |
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