- 업종: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A fire-clay refractory having a pyrometric cone equivalent not lower than 19 and a minimum modulus of rupture of 600 psi (4.1 MPa).
Industry:Mining
A fireclay refractory having a pyrometric cone equivalent not lower than No. 29, or having a refractoriness of not more than 3.0% deformation as measured by the load test at 2,460 degrees F (1,349 degrees C) (ASTM requirements).
Industry:Mining
A fire-resistant plastic container of water that is used as a safety precaution in shotholes.
Industry:Mining
A fire-warning device designed to be bolted to a flat surface that may rise to a dangerous temperature. It consists of a cavity filled with 20 cm <sub>3</sub>of ethyl or butyl mercaptan alone or with other stench agents and is sealed with a fusible plug in a brass container with a hexagonal head, arranged to liberate the stench agent at any temperature chosen. Tests in pits have shown that a strong smell could be detected 1.7 miles (2.7 km) from the discharge point 25 to 30 min after the device operated.
Industry:Mining
A fishing tool similar to a bell-mouth socket, but lacking a latch.
Industry:Mining
A fishing tool specially designed to recover lost collared drill rods or drill pipe. It consists of a smooth-wall, tapered socket, the larger end down, equipped with a spring latch, which grips the drill rod under the collar when it is slid down over the top of the lost drill rod. When the socket is equipped with a flaring (bell-shaped) mouth, it is called a bell-mouth socket.
Industry:Mining
