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Improvements in Apparatus for Finding True Magnetic Divergence, applicable also for Finding Geographical Divergence
Improvements in Apparatus for Finding True Magnetic Divergence, applicable also for Finding Geographical Divergence
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机译：用于查找真磁发散的设备的改进，也适用于查找地理发散
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18,571. Dunoyer, L. D. J. A. Aug. 16, 1906, [date applied for under Patents, Act, 1901]. Bearings, instruments for determining.-In an apparatus for finding true magnetic divergence, two exactly similar earth inductor coils are mounted side by side on a rotatable frame A, and connected to two galvanometers G, G1 through split commutator rings a, band brushes c, d, either the commutator rings or the pairs of brushes being displaced angularly from one another by 90 degrees, for the purpose of producing deflexions in the galvanometer proportional to two rectangular components of the earth's horizontal field. The galvanometers are arranged with their axes of rotation at right-angles in an horizontal plane, and their mirrors reflect images of two threads or luminous filaments F placed at right-angles, on a translucent plate P, which has a vector scale marked with the points of the compass. The point of intersection of the two images when the frame A is rotated indicates the divergence of the ships course from the magnetic meridian, or from the geographical meridian, the plate P in the latter case being rotated through an angle equal to the magnetic declinatiou. The invention is a development of that of Specification No. 4609, A.D. 1907.
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机译：18571。 Dunoyer，L. D. J. A.，1906年8月16日，[根据专利法，1901年申请的日期]。轴承，用于确定的仪器。-在用于寻找真实磁发散的设备中，两个完全相似的接地电感器线圈并排安装在可旋转的框架A上，并通过分离式换向器环a连接到两个振镜G，G <1>，在带电刷c，d中，换向器环或成对的电刷彼此成角度地偏移90度，目的是在振镜中产生与地球水平场的两个矩形分量成比例的挠曲。检流计的旋转轴在水平面中成直角排列，并且它们的反射镜在直角板P上反射成直角放置的两条线或发光灯丝F的图像，其矢量标有指南针的点。旋转框架A时，两个图像的交点表示船舶航向与磁子午线或地理子午线的分叉，在这种情况下，板块P旋转等于磁偏角的角度。本发明是对A.D. 1907年第4609号规范的改进。
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