Tuesday, 28 June 2011
Further work on No 2 stone
Bob and Richard worked on the stone nut disengaging mechanism. The vertical bars have had to be modified as the holes in the tentering beam through which they pass are no longer vertical. To give a little flexibility, the bars are no longer fixed into holes in their bottom plate - instead they have collars which rest on the plate. Today's task was to fix the collars by drilling and fitting spring pins, and then refit the bars.
Finally we made a second hole in the cement dressing on the top of the runner stone and filled it with molten lead to balance the stone.