Hardness testing machine

Details Hardness testing machine Hardness testing machine

1976-10-14

1978-08-08

Ciarlante, Anthony V.

Measuring and testing

Hardness

By penetrator or indentor

73 83, G01N 344

Patent

active

041049012

ABSTRACT:
A hardness testing machine comprises an indenter mounted on one end of a lever. A workpiece clamp is mounted on a further lever to engage the same face of the workpiece as is engaged by the indenter. A piston andcylinder unit is arranged to transfer to the indenter lever a load normally borne by the clamp lever so that load on the workpiece is unchanged. Movement of the indenter arising from the temporary application of the additional load is amplified and applied to a dial gauge.

REFERENCES:
patent: 2188992 (1940-02-01), Wolpert et al.
patent: 2282904 (1942-05-01), Tea
patent: 2722831 (1955-11-01), Smith
patent: 2804769 (1957-09-01), Clark
patent: 3855848 (1974-12-01), Sidler

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