A measuring device for measuring an excavation site is described having a supporting frame, at least one profile measuring apparatus, associated with the supporting frame, facing a corresponding lateral wall of the excavation site. Each profile measuring apparatus has a feeler element arranged to remain in contact with the excavation site lateral wall. A sensor system associated with the supporting frame is provided having rotation sensors, and translation sensors. A data processing system, based on the rotation and translation data measured by the sensor system, is provided for calculating the actual profile of the lateral wall of the excavation site.

A measuring device for measuring an excavation site is described having a supporting frame, at least one profile measuring apparatus, associated with the supporting frame, facing a corresponding lateral wall of the excavation site. Each profile measuring apparatus has a feeler element arranged to remain in contact with the excavation site lateral wall. A sensor system associated with the supporting frame is provided having rotation sensors, and translation sensors. A data processing system, based on the rotation and translation data measured by the sensor system, is provided for calculating the actual profile of the lateral wall of the excavation site.

The modular bore gauge system comprises a plurality of modular spring-loaded bore gauge head adaptors, each having a bore gauge head on a first end thereof and having a female threaded second end, a plurality of modular spring-loaded depth extensions, each having a first male threaded end and a second female threaded end and configured to have its first end screwed onto the second end of one bore gauge head adaptors or to have its first end screwed onto the second end of another one of the depth extensions, and a modular indicator adaptor, configured to have an indicator fitted on a first end thereof and a male threaded second end and configured to have its second end screwed onto the second end of one of the bore gauge head adaptors or screwed onto the second end of a last in line of one of the depth extensions.

The modular bore gauge system comprises a plurality of modular spring-loaded bore gauge head adaptors, each having a bore gauge head on a first end thereof and having a female threaded second end, a plurality of modular spring-loaded depth extensions, each having a first male threaded end and a second female threaded end and configured to have its first end screwed onto the second end of one bore gauge head adaptors or to have its first end screwed onto the second end of another one of the depth extensions, and a modular indicator adaptor, configured to have an indicator fitted on a first end thereof and a male threaded second end and configured to have its second end screwed onto the second end of one of the bore gauge head adaptors or screwed onto the second end of a last in line of one of the depth extensions.

The modular bore gauge system comprises a plurality of modular spring-loaded bore gauge head adaptors, each having a bore gauge head on a first end thereof and having a female threaded second end, a plurality of modular spring-loaded depth extensions, each having a first male threaded end and a second female threaded end and configured to have its first end screwed onto the second end of one bore gauge head adaptors or to have its first end screwed onto the second end of another one of the depth extensions, and a modular indicator adaptor, configured to have an indicator fitted on a first end thereof and a male threaded second end and configured to have its second end screwed onto the second end of one of the bore gauge head adaptors or screwed onto the second end of a last in line of one of the depth extensions.

The modular bore gauge system comprises a plurality of modular spring-loaded bore gauge head adaptors, each having a bore gauge head on a first end thereof and having a female threaded second end, a plurality of modular spring-loaded depth extensions, each having a first male threaded end and a second female threaded end and configured to have its first end screwed onto the second end of one bore gauge head adaptors or to have its first end screwed onto the second end of another one of the depth extensions, and a modular indicator adaptor, configured to have an indicator fitted on a first end thereof and a male threaded second end and configured to have its second end screwed onto the second end of one of the bore gauge head adaptors or screwed onto the second end of a last in line of one of the depth extensions.

A method of calibrating a bore gauge comprises inserting two or more radially extendable elements of a bore gauge into a selected calibrated setting bore or groove in a setting plate comprising a plurality of calibrated setting bores or grooves, each calibrated setting bore or groove of the plurality having a different calibrated nominal diameter. A micrometer of the bore gauge is adjusted so as to cause a measured diameter of the selected calibrated setting bore or groove to match a specified nominal diameter of the selected calibrated setting bore or groove. A setting plate for calibrating a bore gauge includes a plurality of calibrated setting bores or grooves, each calibrated setting bore or groove of the plurality having a different calibrated nominal diameter.

A system and method for measuring an inside diameter of a pipe to determine if it exceeds a predetermined value using a plurality of fingers operatively connected to a spring. When in a fully extended position, the distance between opposite fingers is the predetermined value. The fingers are pivotable between a starting position, through the fully extended position, and to a failing position. In the starting position, an outer end of each finger engages an inside surface of the pipe to compress the spring. If the diameter exceeds the predetermined value as the system moves through the pipe, the pipe inside surface will no longer engage the fingers, which releases the spring causing the fingers to pivot to the failing position, where they remain until the system is removed from the pipe and manually reset.

A system and method for measuring an inside diameter of a pipe to determine if it exceeds a predetermined value using a plurality of fingers operatively connected to a spring. When in a fully extended position, the distance between opposite fingers is the predetermined value. The fingers are pivotable between a starting position, through the fully extended position, and to a failing position. In the starting position, an outer end of each finger engages an inside surface of the pipe to compress the spring. If the diameter exceeds the predetermined value as the system moves through the pipe, the pipe inside surface will no longer engage the fingers, which releases the spring causing the fingers to pivot to the failing position, where they remain until the system is removed from the pipe and manually reset.

A cervical dilation reading apparatus and method of use to accurately and precisely determine cervical dilation measurements during labor and delivery. The apparatus includes a measuring device having a length with a first end and a second end, a fixed attachment configured to couple with a first finger and fixedly engage the first end of the measuring device, and a slidable attachment configured to couple with a second finger and slidably engage the measuring device along the length between the first and second ends. The method includes providing a cervical dilation reading apparatus, inserting the first and second fingers into the vaginal introitus and locating the cervix and cervical os, placing the first finger on a first side of the cervical os and extending the second finger away from the first finger to a second side, opposite the first side, of the cervical Os, thereby extending the length of the measuring device between the first and second fingers to a substantially extended state, removing the first and second fingers, and determining a diameter of the cervical os by the length of the measuring device in the substantially extended state between the fixed attachment and slidable attachment.