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A Brunton compass, properly known as the Brunton Pocket Transit, is a precision compass made by Brunton, Inc. of Riverton, Wyoming. The instrument was patented in 1894 by Canadian-born geologist David W. Brunton. [1] Unlike most modern compasses, the Brunton Pocket Transit utilizes magnetic induction damping rather than fluid to damp needle ...
Classic geological compass (Brunton), sideview Classic geological compass (Brunton), topview. There are a number of different specialized magnetic compasses used by geologists to measure orientation of geological structures, as they map in the field, to analyze and document the geometry of bedding planes, joints, and/or metamorphic foliations and lineations.
In 1972, the newly formed Brunton, Inc. began compass and transit production in Riverton, Wyoming. Compasses included the Pocket Transit, Cadet, and an emergency compass called the Life Card, designed to float in a bowl of water. This was followed in 1981 by the Model 8040 Sportsman's Compass, a map (baseplate) compass with folding cover and ...
A standard Brunton Geological compass, used commonly by geologists. Geologists take two major types of orientation measurements (using a hand compass like a Brunton compass): orientations of planes and orientations of lines. Orientations of planes are measured as a "strike" and "dip", while orientations of lines are measured as a "trend" and ...
Silva Voyager compass (Brunton 9020) Silva Sweden AB created their first compass in 1928, and established their company in 1933. Below is a Chronological timeline of important dates in the history of Silva Sweden AB: [3] 1928 Gunnar Tillander invents the first orienteering (baseplate) compass. [4] [5] [6]
A modern military compass, with included sight device for aligning. A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north.
In navigation the instrument is also called a cross-staff and was used to determine angles, for instance the angle between the horizon and Polaris or the sun to determine a vessel's latitude, or the angle between the top and bottom of an object to determine the distance to said object if its height is known, or the height of the object if its distance is known, or the horizontal angle between ...
Brunton compass This page was last edited on 3 April 2021, at 22:46 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...