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US Patent: 382,854
Slip and Shrinkage Gage
Patentee:
Henry C. Balsbbaugh - Harrisburg, PA

USPTO Classifications:
33/544

Tool Categories:
layout tools : measurement gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Theophilus Weaver
A. Brackenridge
B. Fred Heller
B. B. Hamlin

Patent Dates:
Applied: May 21, 1887
Granted: May 15, 1888

Patent Pictures:
USPTO pdf tiff
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Description:
This tool allows accurate measurements of the inside of a bore, and can also be used to set a small offset from the measured distance (positive of negative) to allow for clearance.

This tool would normally be used to measure and fit pistons to their bore in something like a hydraulic system.

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