Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Historical outline of development of gold dredges; effect of high specific gravity of pond water, due to mineral matter in suspension; screens; gold saving tables; clean-up-tailings disposal; anchoring; digging practice; auxiliary sluices, or "savealls"; cost of dredge may be anywhere from $65,000 to $1,000,000, depending upon details of design; advantages of sectionalized hull made of pontoons.
Historical outline of development of gold dredges; effect of high specific gravity of pond water, due to mineral matter in suspension; screens; gold saving tables; clean-up-tailings disposal; anchoring; digging practice; auxiliary sluices, or "savealls"; cost of dredge may be anywhere from $65,000 to $1,000,000, depending upon details of design; advantages of sectionalized hull made of pontoons.
Operation of gold dredges
Can Min J
Lewis, R.S. (Autor:in)
1935
5 pages
Aufsatz (Zeitschrift)
Englisch
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| Engineering Index Backfile | 1906
| Engineering Index Backfile | 1940
| Engineering Index Backfile | 1916
| Engineering Index Backfile | 1925
Engineering Index Backfile | 1935