Joist hangers - what am I missing

[saveasteading]

11 minutes ago, Gone West said:

animal glue" in the 1950s, which he heated up in a metal pot inside a water filled pot.

It could then be softened for  dismantling if necessary, without damaging the wood. eg a violin, wobbly chair.

[sgt_woulds]

Was this 'animal glue' made from boiled rabbit skins?

 

I remember seing this used to reinact the 'solvite man' advert.   

 

Amazing stuff in tension, but could creep over time with lateral loads.

 

Fully organic and breathable and much nicer to use than modern urathane glues - apart from the smell