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Showing: 1 to 10 of 229 matches for "yuba"  Page   1   2   3   4   5   6   7   8   9  next TITLE Coming Events  SUMMARY ... If the minerals you plan to process require the han- . dling of huge quantities of earth, gravel or rock, con- sult YUBA. ... ASK YUBA FOR HELP ... PUBLISHED 1952 TITLE Extending The Scope Of Placer Dredging  SUMMARY ... At Hammonton, Calif., Yuba Con- solidated Gold Fields has, within the past two years, built its dredge KO. 20. ... Yuba No. 20, capable of digging 124 ft. ... AUTHOR Romanowitz, C. M. ; Sawin, H. A. PUBLISHED 1941 TITLE Papers - Mining - Extending the Scope of Placer Dredging. (Mining Technology, July 1941)  SUMMARY ... DEEP DREDGING large boulders, or for some other reason H calif., yuba con- ... opment of dredges and equipment to oper- ate at increased digging depths. Yuba No. ... AUTHOR Romanowitz, C.M. ; Sawin, H. A. PUBLISHED 1943 TITLE Extending The Scope Of Placer Dredging  SUMMARY ... At Hammonton, Calif., Yuba Con- solidated Gold Fields has, within the past two years, built its dredge No. 20. ... Yuba No. 20, capable of digging 124 ft. ... AUTHOR Romanowitz, C. M. ; Sawin, H. A. PUBLISHED 1941 TITLE Mining Engineering News  SUMMARY ... Page 3. A. YUBA No. ... ft. buckets and 8 0 4 digging depth for Emigrant Dredging Co., dredging gold in Montana, 1941. 6. YUBA crew dismantled No. ... PUBLISHED 1953 TITLE Heavy-medium and gravity separation at Iscor's tin-ore and iron-ore mines  SUMMARY ... 1) Crushed ore is fed onto a sloping screen ahead of the primary Yuba M8-8 jig at HO t/h. The Yabu jig produces a product assaying about 1,5 per cent tin from ... AUTHOR Voges, H. C. PUBLISHED 1982 TITLE Land Restoration on the Taramakau River  SUMMARY ... n • This dredge, a "Yuba" type, was designed and built in the 1930's. On ... A characteristic of the Yuba-type dredge is the large "spuds" (2) ... AUTHOR F K Buckley PUBLISHED 1981 TITLE The Gold Placer Industry, Present and Future  SUMMARY ... It is clearly of the California-type design and ossibly a co y of the Yuba dred es sold to Russia; in 192.5 four, 13% f and one, 7 f! in 1947 seven, t P ... AUTHOR Richardson, Mortimer J. PUBLISHED 1992 TITLE The History of Gold Dredging  SUMMARY ... In point of fad, introducing mineral jigs into gold dredges in New Zealand did not occur until the late 1930's when the California Yuba type dredges were ... AUTHOR Richardson, Mortimer J. PUBLISHED 1992 TITLE Investigation Of Henderson Gulch Tungsten Deposit, Granite County, Mont.  SUMMARY ... A modified Yuba, 4·cubic foot bucket dredge was used in the operation. ... of Portland, Oreg., put in operation a modified Yuba 4-cubic foot bucket drodge. ... AUTHOR Hundhausen, Robert J. PUBLISHED 1949 Showing: 1 to 10 of 229 matches for "yuba"  Page   1   2   3   4   5   6   7   8   9  next Search Again