Need help finding ring-shaped wire clamp

[rashidk]

Was wondering if I can find it in the States:

the clamp is a slit ring of may be 4" OD, made out of

1/8 or so, spring-tempered steel. Works wonders when clampling elaborate/intiricate woodwork.

Is used extensively in Russia - this is where I saw it. Doing extensive searches in US catalogs didn't show anything even remotely similar ...

Trying to avoid having to make my own (1/8 drill bent with a home made bender, heat-treated).

The ring has to be as close to ideal circle and be planar to work the best.

[Juergen Hannappel]

Something like the fourth item on

?

[...]

Wrong type of steel, not springy enough.

[rashidk]

Not at all like this one, no.

Just image 4" diameter perfect circle/ring, made out of piece of 4mm (1/8) or so wire, slit so that ends can be moved apart and the steel, being springy, will try to get the ends together again. Nothing more, nothing less.

Juergen Hannappel wrote:

[Vic Baron]

I'd do a search for hose clamps. Also check the embroidery/ needlepoint areas - I think they use things like that to hold the fabric on the rings. You can buy screw type 4" hose clamps all over, if they would work

HTH, Vic

[Pounds on Wood]

That's exactly what he showed you, except they are improved and not a full circle. Did you look at the 4th item down from the top?

--

******** Bill Pounds

[rashidk]

Unfortunately the hose clamps will not do, neither will anything at the url above. I did look for curtain rings at some point - but they tend to be too small in D.

To try again :) - imagine 2 x 3.14 x 2 = ~12" long drill rod, 1/8 in D. Now roll it into a perfect circle , heat treat and bingo - you got just the thing I am looking for.

Or, if you want to skip the heat treating part, imagine rolling 12" length of music wire of .100-.125 in D.

[John]

You'll get several out of an old bedspring.

John

[charlie b]

How about cutting sections of 4" ABS or PVC pipe? Cut out slice for whatever "spring" tension you need and go.

charlie b

[JeffB]

[Lawrence Wasserman]

Not what you are asking for, but I have made similar clamps from a piece of PVC pipe, 4" ID, cut into appo. 1" "slices" then cut once radially so they can be spread open into a "C" shape. I made about 20 of them from a waste piece of pipe I took out of a construction site dumpster.