- Industry: 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 rope consisting of 8 strands of 19 wires each with a large hemp center.
Industry:Mining
A rope in which the wires are not laid up in strands but in concentric sheaths, and in opposite directions in the different sheaths, which gives the rope nonspinning properties. The outer sheaths are composed of specially shaped interlocking wires, and there is no hemp core in the rope.
Industry:Mining
A rope in which the wires are twisted in the same direction as the strands and the wires are thus exposed to wear for a much greater length than in round rope. The smoother lang lay resists wear to better advantage and is frequently preferred for haulage ropes.
Industry:Mining
A rope in which the wires are twisted in the same direction as the strands and the wires are thus exposed to wear for a much greater length than in round rope. The smoother lang lay resists wear to better advantage and is frequently preferred for haulage ropes.
Industry:Mining
A rope or cable wound and attached so that it stretches from the bottom of a drum to the load.
Industry:Mining
A rope that has a gradually diminishing diameter from the upper to the lower end. The diameter of the rope is decreased by dropping one wire at a time at regular intervals. Both round and flat ropes may be made tapered, and such ropes are intended for deep shaft hoisting with a view to proportioning the diameter of the rope to the load to be sustained at different depths.
Industry:Mining
A rope that moves in one direction, one part of which carries loaded cars from a mine at the same time that another part brings the empties into the mine.
Industry:Mining
A rope wire consisting of 18 strands of 7 wires each, in 2 layers; the inner layer consists of 6 strands lang lay rope and left lay around a small hemp core, and the outer of 12 strands regular lay, right-hand lay. Will carry a load on a single end without untwisting.
Industry:Mining
