Patent ID: 8091629

Claim:
An adjustable wireline sheave assembly, comprising: a frame defining a plurality of lock locations; a hub disposed in the frame and being rotatable therein about a first axis of rotation; an axle connected to the hub and defining a second axis of rotation eccentric to the first axis of rotation; a sheave for running a wireline, the sheave disposed on the axle and being rotatable about the second axis of rotation; and a lock attached to the hub and having a movable key, the movable key having a first end connected to the hub and having a second end connected to the first end, the second end movable relative to the first end and being selectively movable to locked and unlocked conditions, the second end in the locked condition being engagable with one of the lock locations to fix the second axis of rotation of the axle relative to the first axis of rotation of the hub, the second end in the unlocked condition being disengageable from the lock locations, the movable key being usable to adjust the second axis of rotation of the axle relative to the first axis of rotation of the hub.