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SAVING COLORADO'S LAST MINING DREDGE: THE SNOWSTORM DREDGE AT FAIRPLAY

机译:拯救科罗拉多州的最后一道矿山:展会上的暴风雪之刃

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This paper presents the history of gold mining by dredge, with particular reference to the Snowstorm dredge, located near Fairplay, Colorado. This machine is the last Colorado representative of an industry, an era and a form of technology. Mining dredges were huge and noisy, yet they were welcomed as a form of economic relief to the old industry of placer mining. Streambed mineral deposits, especially gold, have attracted mankind for thousands of years. In the American West, placer gold was mined first by panning, later by sluice and hydraulic methods, but none was very economical. After some early and unsuccessful American attempts, mining dredge technology got its start in New Zealand. From an ox-hide stretched over an iron ring, all the way to steam and electric-powered boats with bucket ladders, New Zealand's engineers led the way in the last part of the Nineteenth Century. Successful American dredging began in Montana in 1896, and soon spread to other states. San Francisco became the home of dredge manufacturers. English-born engineer Ben Stanley Revett brought gold dredging to Colorado. After a few unsuccessful attempts, in 1905 he designed his own dredge, called the "Reliance," which incorporated stronger timber and larger bucket lines for deeper digging. The dredge was an immediate success, for Revett and the area. Colorado dredging continued as a successful industry through the 1920s, but suffered financial reverses in the Depression. Finally, World War II orders shut down the industry as non-essential. It did not return in most places. However, the Snowstorm dredge, built just before the war, operated up to 1976. This machine contains many features of the original American dredges. Today the Snowstorm dredge stands as. a lone reminder of this important part of mining history, and should be the subject of historic preservation.
机译:本文介绍了挖泥机采金的历史,特别是科罗拉多州Fairplay附近的暴风雪挖泥机。这台机器是科罗拉多州一个行业,一个时代和一种技术形式的最后代表。采矿挖泥机既巨大又嘈杂,但是作为一种经济救济形式而受到欢迎,这是对砂矿开采这一古老行业的一种经济救济。流化床矿床,特别是黄金,已经吸引了数千年的人类。在美国西部,砂金首先通过淘选来开采,然后通过水闸和液压方式开采,但是没有一种是非常经济的。在美国进行了一些早期但未成功的尝试之后,采矿挖泥机技术在新西兰开始起步。从覆盖在铁环上的牛皮,一直到带有桶形梯子的蒸汽和电动船,新西兰的工程师引领了十九世纪下半叶的发展。美国成功的疏ging工程于1896年在蒙大拿州开始,并很快传播到其他州。旧金山成为疏edge制造商的所在地。出生于英国的工程师本·斯坦利·雷维特(Ben Stanley Revett)将挖泥机带到了科罗拉多州。经过几次失败的尝试后,他于1905年设计了自己的挖泥机,称为“ Reliance”,该挖泥机结合了更坚固的木材和更大的铲斗线以进行更深的挖掘。对于Revett和该地区而言,疏edge是立即的成功。整个1920年代,科罗拉多州的疏ging工作一直是一个成功的行业,但在大萧条时期却遭受了财务逆转。最终,第二次世界大战令关闭了该行业,这是不必要的。它在大多数地方都没有返回。但是,就在战争之前建造的Snowstorm挖泥机一直运行到1976年。这台机器包含了原始美国挖泥机的许多功能。今天,暴风雪疏edge站起来。提醒人们采矿历史的这一重要部分,应该成为历史保护的主题。

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