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US Patent: 4,419,824
Digital Electrial Length Measuring Instrument
Patentee:
Johann Oberhans (exact or similar names) - Buchoster, Germany

USPTO Classifications:
33/784, 33/813

Tool Categories:
layout tools : measurement gauges

Assignees:
Dr. Johannes Heidenhain GmbH - Traunreut, Germany

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jul. 30, 1982
Granted: Dec. 13, 1983

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
Willian, Brinks, Olds, Hofer, Gilson & Lione Ltd - patent attorneys

Abstract

A digital, bow-type measuring instrument is disclosed which provides rapid adjustment of the position of a measuring bolt with respect to an anvil over the entire measuring range. The instrument is used by rapidly translating the bolt into position such that the object being measured is positioned between the anvil and the bolt. Thereupon, the bolt is locked in position with the aid of a locking system so as to fix the measuring bolt in position with great rigidity while applying a predetermined measuring force to the bolt. In this way, an instrument is provided which makes possible precise measurements of heavy or fixed objects by means of a bow-type measuring instrument which allows rapid shifting of the measuring bolt.

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