Loading shaft positioning apparatus for hardness tester

Details Loading shaft positioning apparatus for hardness tester Loading shaft positioning apparatus for hardness tester

1977-08-15

1978-10-10

Ciarlante, Anthony V.

Measuring and testing

Hardness

By penetrator or indentor

73 83, G01N 344

Patent

active

041189752

ABSTRACT:
An apparatus for positioning a loading shaft of hardness tester prior to application of test load. A loading shaft position detector is provided for detecting the arrival of the loading shaft at a given position when elevating it, and the detector controls an electromagnetic means to check further continuation of the elevating operation of the loading shaft so that the loading shaft is set automatically at the given position. An electromagnetic clutch or brake serves as the electromagnetic means.

REFERENCES:
patent: 2357856 (1944-09-01), Tate
patent: 2554206 (1951-05-01), Pearson et al.

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