Bore gage system for setting and measuring large diameter bores
AssigneeDorsey Metrology International
InventorsTheodore Luty, Stephen Forschler
Life of this patent
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Abstract
A large bore measuring system includes a modular and extendable bore gage with analog and digital readouts, also includes a settable set-master. The modular bore gage is designed to measure two sets of large bore diameters. A first set of large bores is accomplished by using a modular bore gage design described in this disclosure. The second set of larger bores is accomplished by adding attachments therein extending the gage for the larger range of bore diameters. A set-master is used for both sets of large bores.
Claims16
A large bore gaging system for measuring two ranges of large bore diameters comprising;
- a settable set-master and,
- a protracted bore gage comprising a three part assembly modifiable for each range of large bore diameters in which,
- a front part comprises a centralizer, a cylindrical housing, a first measuring rod and a motion transfer device;
- an intermediate part comprises a cylindrical housing mounted perpendicular to said first part, a slideable rod conjoined with said motion transfer device at one end and a dial indicator conjoined with a digital gage at the other end;
- and an end part axially connected to the back end of said first part comprising an extension bar with an adjustable contact.
A method for using said large bore gage system, comprising the steps of:
- providing a set-master with three contacts for a specific range of large bore diameters;
- providing a set of certified gage blocks;
- providing an elongated bore gage with a dial indicator and conjoined digital indicator;
- providing a gage block supporting rail having a centering support member and a knob for tightening a slideable block
- providing data for said nominal diameter to be measured.
Dependencies are inferred from the claim text.