Ring Plates, Bolts and Ring Spanner

Ring Plates, Bolts and Ring Spanner.
Ring plates, bolts and ring spanner.

Made from iron. Sizes are as follows –
1: Plates 18″ x 3″ inches.
2: Bolts 5″ x 1 1/4″ inches.
3: Spanner 15″ inches. 

These straight plates were used to connect extension pieces to the rings iron H section girder roof supports together underground. The spanner has a pointy end used as a podger to help align the plates to insert the bolts through. This spanner also has an hole through it so as to put it on a tool bar!