Broken boards restoration

The problem:
Brooken wooden boards need to be securely attached.

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A special tool for pressing broken wooden boards, developed by my collegue Reinhard Erlacher

For additional strengthening a wooden dovetail can be made and glued into a groove on the boards

For additional strengthening a wooden dovetail can be made and glued into a groove on the boards

For additional strengthening a wooden dovetail can be made and glued into a groove on the boards

For additional strengthening a wooden dovetail can be made and glued into a groove on the boards.
The dovetail is an enourmous imprvement of the construction.

First make a dovetail of wood, ca 4-5mm thick.
Then place it on the board and make a line around the piece

Now make the groove, by use of a sharp crowbar (лом)

Glue the groove, then place in the dovetail-piece.
After drying remove protrude part of the dovetail.