Patent ID: 6860029

Claim:
An elongated alignment tool for a boring bar or like device used to bore or rebore a hole into or through a structural member at a location spaced apart from a further hole or location on the structural member comprising: at least a first hollow tubular segment having outboard and inboard ends, said first tubular segment being non-rotatably anchored to a further hole or location on the structural member, a second hollow tubular segment having outboard and inboard ends, said inboard end being telescopically received within said first hollow tubular segment, a rigid externally threaded rod having first and second ends, said first end of said rod being fixedly anchored internally of said inboard end of said first tubular segment and extending in cantilevered fashion along substantially the full length of said first tubular segment, said second hollow tubular segment including a plug fixedly mounted internally thereof adjacent said inboard end thereof and including an internally threaded throughbore therethrough and threadably engaging said externally threaded rod whereby rotation of said second tubular segment relative to said first tubular segment effects telescopic movement of said second segment relative to said first tubular segment, a first elongated clamp post having outboard and inboard ends, said outboard end being adapted to be releasably and non-rotatably anchored to the boring bar, and said inboard end adapted to be selectively either fixedly anchored to said outboard end of said second segment to preclude rotation of said first clamp post relative to said second segment or loosely affixed to said outboard end to permit rotation of said first clamp post relative to said second segment, whereby rotation of said second segment relative to said first segment effects lengthening or shorting of the overall length of the elongated alignment bar.