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As William Ainsworth Inc., production of the Pocket Transit continued; the same basic design remains in production today, in numerous versions and configurations.. In 1970, the company introduced the Brunton Cadet, a simplified evolution of the Pocket Transit incorporating a compass and clinometer, intended for use in training students in the fields of geology, forestry, mining, and surveying. [9]
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 ...
Floating-card compass with prismatic sight (bearing 220° through eyepiece). The marine hand compass, or hand bearing compass|hand-bearing compass as it is termed in nautical use, has been used by small-boat or inshore sailors since at least the 1920s to keep a running course or to record precise bearings to landmarks on shore in order to determine position via the resection technique.
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.
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Since 1967, successors of M-40 have been offered as KB line, which consists of high-quality hand-bearing surveying compasses and inclinometers that are accurate to fractions of a degree. Traditionally made of a solid block of machined aluminum, each KB compass contains a magnetized dial with calibration markings printed along its outer edge. [21]