Ray
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 15
- File Size:
- 517 KB
- Publication Date:
- Jan 1, 1957
Abstract
ON THIS page is a photograph of a machine that has played a key role in the recent history of Kennecott's Ray mine, situated in the Mineral Creek District, Pinal County, Arizona. It is a huge, rugged, Diesel-powered, rubber-tired truck, having a capacity for carrying fifty tons of ore. It has, to a substantial degree, revolutionized the business of moving broken rock by cutting down both maintenance and operating costs. From 1911 until the end of 1954 Ray had produced 79,000,- 000 tons of ore by underground block-caving. However, in 1947 [ ]
Citation
APA: (1957) Ray
MLA: Ray. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1957.