ROLL ATTITUDE CORRECTING MEANS, FOR TUNNELING MACHINES

摘要

The method comprises holding only one of two relatively movable tunneling machine portions against movement and displacing the other portion about a tunneling machine boring axis, and then holding only the other portion and corresponding displacing the one portion. The means comprise linkage members mutually joined and in which each one thereof is individually coupled to one of the machine portions, and means operative for effecting relative movement between the members.