Take Two, small opening round window.

[artful bodger]

Posted a thread a while ago about making this (http://www.woodworkforums.com/f8/round-window-226156) small opening round window, see picture below.

450774 It drew a bit of flak due to the robustness (or lack of) of the hinge. Which was also a concern to me. It was also suggested that 2 quadrant stays might have been better than one.

This one is slightly larger at 450mm OD. Tracked down a sturdier stainless steel "Hatch hinge" from a ship chandler this time. The hinge came with a 1/4 inch removable clevis pin but the fit of the pin was woefully sloppy. Bought a 5/16 clevis pin and drilled through the hinge on a home made jig to get a fit with way less play in it.
450777 Outside/main frame is again WRC and the opening frame is King Billy pine.
Also put 2 chromed brass quadrant stays on this one to match the look of the stainless steel hinge.
Turned a drip groove on the OD of the opening frame as well.
With the main frame each segment is screwed and glued to the segment underneath using Kleiberit 303 glue. The King billy opening frame is just glued (no screws) using Epiglue epoxy glue.
A bit happier with this one.
Last shot shows finished item with an unturned built up twin.
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[brainstrust]

nice metal hardware :U

[Nubsnstubs]

AB, nice job on the window. I don't care much for the exposed hardware. It's a distraction, but if that's the only stuff available, then that's the way it is.

I believe I saw a window/flap type thing once that had a pivot in the center, top and bottom or 3 and 9 o'clock position that you could push and the window/flap would open and stay open. The hardware had a detente that would keep it in the open position. When you wanted it closed, you just push it shut, where it also had a detente to keep it closed. No hardware would be exposed. If what I described is in fact a real product, instead of a figment of my imagination, see if you can find something like it and use it on your next project. Maybe something like this. Just need to find out what is holding the window in place.http://cbsphilly.files.wordpress.com/2013/03/custom-operational-round-windows.jpg?w=620


Here is a simpler version. Not what I had in mind, but it works for him.

https://www.bing.com/videos/search?q=Concealed+pivot+hinges+for+round+windows&view=detail&mid=E6A94F4069590DB3A0F3E6A94F4069590DB3A0F3&FORM=VIRE






. .................. Jerry (in Tucson)USA

[artful bodger]

Thanks for that Jerry. I am aware of those type of windows and am keen to have a crack at a few, just have not got the design details in my mind completely clear yet. A proper drawing of how they work is what I am trying to find first. There are a couple of makers in the UK who seem to specialise in making them. They claim that those type are ideal for having on elevated walls as you can clean them from the inside.
Here is another opening casement style one, not overly keen on this design though.
450881