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I am looking for some device that can be used for blocking a sheet of glass or other materials in position. On one side of the glass (blue sheet in the diagram) is applied a force if the force is above a certian value the upper block is released and the glass is free to move upward.

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I am looking for a kind of force limiting relief device but I can't find anything already on the market? Am I missing something? Is there any conventional name for such devices?

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Hold the top block in place with a spring loaded ball mechanism.

Check out cupboard latches or spring loaded latches as an example.

Also known as ball and detent...

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  • $\begingroup$ Seems a good starting point but is there anything I can use to regulate the pressure? $\endgroup$
    – G M
    Oct 2 '20 at 11:37
  • $\begingroup$ Yes, the depth of the detent and the strength of the spring. $\endgroup$
    – Solar Mike
    Oct 2 '20 at 11:38
  • $\begingroup$ Ok, thanks I was looking for something I could regulate for different pieces but it is a good starting point. The main drawback is that I need to perform a dent on the glass. $\endgroup$
    – G M
    Oct 2 '20 at 11:41
  • $\begingroup$ Why not between the top support and its frame? $\endgroup$
    – Solar Mike
    Oct 2 '20 at 11:44
  • $\begingroup$ You are right that make sense I was not thinking them as two separate entities but I could do something like that. $\endgroup$
    – G M
    Oct 2 '20 at 11:55

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