Patent ID: 8528387
Filing Date: 2013-09-10
Classification: G01N

Abstract:
1. An apparatus for measuring the hardness of material defining a core hole, the apparatus comprising: a) a load head having a first side with a cylindrical tip section and a second side attached to a piston rod with the piston rod being internal to a hydraulic ram with the hydraulic ram moving the piston rod by use of fluid and the hydraulic ram having ports with the ports having means to attach to one or more hydraulic tubes; and b) the hydraulic ram defining a curved void; c) a rotational block with a first side defining a curved void; d) a load pivot disposed within the curved void of the rotational block and the curved void of the hydraulic ram; e) the rotational block having a second side attached to a load cell; and f) the load cell connected to one or more reaction pad shims.