Hydraulically operated workpiece testing machine

US3994158A · kind A · utility

Assignee

• MFL Pruf-und Messsysteme GmbH

Inventor

• Helmut Weinhold · Ketsch, DE

Key dates

• Filing date: Feb 10, 1976
• Grant date: Nov 30, 1976
• Expiry date: Feb 10, 1996

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N3/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Two stationary uprights are mounted on a support and each of them carries a piston. Each upright is surrounded by a vertically movable cylinder whose interior is subdivided by the respective piston with an upper and a lower chamber. Fluid passages are formed in the uprights and each of the latter has two fluid ports which respectively communicate with the upper and the lower chamber of the associated cylinder. A cross-head rigidly connects the cylinders for joint movement.