boring rod वाक्य

However, the boring rod and wagonway technology he took with him was implemented by others to significant effect.
Armed with a tape measure, boring rod and other work essentials, Pederson visited the unfrequented stand of some 30 old-growth trees for the first time since the fall when he discovered them and took boring samples.
A key innovation currently attributed to him is the introduction of boring rods to assist in finding coal without sinking a shaft . His working life covered involvement in coal mining activities in Warwickshire, Leicestershire, Nottinghamshire and Northumberland.