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| Breithaupt Kassel #3019 Compass "GEKOM" Breithaupt & Sohn have been manufacturing magnetic compasses since 1762. The Breithaupt Basic Stratum Compass "GEKOM" is robust, available at a reasonable price and therefore very popular among universities and students of Geology. Field of Application. The GEKOM is a stratum compass that allows measurement of the azimuth of dip and the angle of dip in one single operation. The compass is particularly suited to engineering geology and rock mechanics studies. Made in Germany Visit the Breithaupt Website Basic stratum compass incl. pouch with belt loop. |
| Special Advantages - Measuring of azimuth of dip and angle of dip in one single operation (method of Prof.Dr. Clar) - New reading of dip of azimuth without turning the compass - Enlarged dip measuring range up to 270°. - Compact dimensions of only 86 x 70 x 70 mm, no protruding parts on the housing. - Robust antimagnetic alloy housing with anodized surface. - Easy removal of upper part of the housing for adjustment of declination (up to 360°), and inclination weight on compass needle. - Adjustable measuring plate hinge. - Automatic clamping of the needle when not in use. - Sighting device for rapid bearings. - Cover can be written on in pencil. |
| Description The compass housing is compact and robust, with no protruding parts. The outside dimensions of the GEKOM, with its lid closed, are 86 x 70 x 20 mm and the weight is only 240g. The housing is a blue anodized light metal and consists of a cover, base plate and axis for the measuring plate. The cover and base are connected tightly by 3 screws. A ring-shaped gasket protects against water and dust. The cover and cover glass can be easily removed by loosening the 3 screws to allow adjustment of the declination. If necessary, the inclination weight can be adjusted allowing the compass needle to swing horizontally. The circular level bubble of the GEKOM fits flush within the housing permitting oblique side viewing. There is a graduated ruler 50mm in length on the side of the compass housing. A carrying cord can be fixed to the housing protecting the GEKOM against loss. A spring pin on the compass housing and a notch on the cover serve both as a locking device for the measuring plate and as a simple sighting device. In the closed position, the measuring plate protects the circular bubble, the cover glass and the release knob. The surface of the measuring plate can be easily written on in pencil and the movement of the cover hinge can be readjusted at any time. Determination of azimuth of dip A graduated azimuth circle is located at the base of the compass and is covered by a glass plate. The graduations run counter-clockwise and are numbered every 10°. Cardinal points are also shown with the East and West markings reversed according to standard geological measuring methods. The compass needle is placed on a hardened pin in an agate bearing. The North end of the compass needle is lacquered in red and the South in black for clear reading of the azimuth. For protection of the precise bearing the needle is automatically clamped when not in use and is released for measurement by pressing the release button. Determination of angle of dip: A new design for ease of use and precise measurements. The angle of dip is measured by reading from a graduated vertical circle located on a drum coaxial with the axis of the measuring plate. The vertical circle has an enlarged dip measuring range up to 270° permitting even more flexible use. It is graduated in quadrants, distinguished in red and black, with the red section marked by a red index line. The circle is graduated in 5° intervals with numbering every 20°. The drum and vertical measuring circle rotate as the measuring plate is inclined. The graduations face the observer enabling reading of dip of azimuth and azimuth at a glance. Without turning the compass the user takes the reading (red or black) of the dip and then the reading of the azimuth on the corresponding end of the needle (red or black). |