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US 4,233,748 AGranted
Hole alignment probe
AssigneeWestinghouse Electric Corp.
InventorsDaniel E. Ford, Jeffrey A. Pyle
Life of this patent
Estimating the term…
Abstract
Hole alignment probes utilizing strain gages spaced 90.degree. apart to indicate the extent and direction of misalignment of holes disposed in substantial alignment.
Claims9
A hole alignment probe for determining the misalignment of holes in spaced-apart plates, said probe comprising:
- an elongated rod, said rod having at least three lands slightly smaller in diameter than the holes in said plates and spaced generally the same as said plates and having a turned down portion disposed between adjacent lands;
- at least two strain gages disposed on one of said turned down portion 90 degrees apart;
- cables extending from said strain gages;
- at least one cable run disposed to bring said cables through one of said lands without interfering with the fit between the land and the associated hole;
- means for determinng the orientation of the strain gages;
- whereby upon insertion of the probe in aligned holes in adjacent plates and by determining the strain registered by the strain gages the amount and direction of misalignment of the holes can be determined.
3 more elements
Dependencies are inferred from the claim text.