VERSATILE: This woodworking compass is perfect for doing large carpentry work, drafting, geometry, metal work, and leather work. 2 IN 1 COMBO: This compass divider works both as a scribe and compass for all your marking needs. ![]() We’ve organized our list into convenient categories, to help you find what you’re looking for more easily. The needle point metal tip makes strong engravings and will not slip. We’ve scoured the internet to find an exciting list of antique compasses currently available for sale online. Qibla Compass: Used by Muslims to show the direction of Mecca.Solid State Compass: These are found in electronic devices.Thumb Compass: A smaller version of the Base-plate compass that can be attached to the thumb.Base-plate Compass: This form of compass is most commonly used for orienteering and often includes a magnifying lens and ruler for map reading. ZLKSKER 4 Inch Professional Leather Compass, Precision Spring Wing Divider/Scriber, Metal Compass for Woodworking, Metalworking 206 899 List: 9.Prismatic Compass: This type of compass uses a glass prism or a lens.As you may have guessed by the name, this type of compass was most commonly used on boats. Marine Compass: Also known as a card compass this type of compass features a needle with a fixed compass card that is mounted in a fluid.Liquid Compass: Uses a magnetized needle or a card immersed in a fluid.Knowing the different types of compasses can help you to narrow down your search when looking for the perfect antique compass. They are used for scribing circles and stepping off repetitive measurements with some accuracy.There are a variety of different compass types which reflect the variety of uses compasses have had throughout history. The pencil holder, thumb screws, brass pivot and branches are all well built. Loose leg wing dividers are made of all forged steel. Get free shipping on qualified Compass Marking Tools & Layout Tools products or Buy Online Pick Up in Store today in the Tools Department. ZLKSKER 4 / 10 inch Woodworking Compass with Pencil Holder, Precision Spring Divider / Scriber, All Metal Compass for Leather Work Metalworking (4 inch) 4.3 out of 5 stars 151 £9.99 £ 9. The wing nut serves two purposes, first it tightens the pencil and secondly it locks in the desired distance when the wing nut is turned clockwise. One branch has a pencil sleeve while the other branch is crimped with a fine point protruding from the end. It is the compass in the most simple form. Some compasses can be used to scribe circles, bisect angles and in this case to trace a line. Scribe-compass is an instrument used by carpenters and other tradesmen. ![]() Euclid showed in his second proposition (Book I of the Elements) that such a collapsing compass could be used to transfer a distance, proving that a collapsing compass could do anything a real compass can do.īeam compass is an instrument with a wooden or brass beam and sliding sockets, or cursors, for drawing and dividing circles larger than those made by a regular pair of compasses. The most rigorous definition of this abstract tool is the “collapsing compass” having drawn a circle from a given point with a given radius, it disappears it cannot simply be moved to another point and used to draw another circle of equal radius (unlike a real pair of compasses). Although a real pair of compasses is used to draft visible illustrations, the ideal compass used in proofs is an abstract creator of perfect circles. The hinge is set in such a way that the distance between the spikes on the map represents a certain distance in reality, and by measuring how many times the compasses fit between two points on the map the distance between those points can be calculated.Ĭompass and straightedge construction is used to illustrate principles of plane geometry. The radius of the circle can be adjusted by changing the angle of the hinge.ĭistances can be measured on a map using compasses with two spikes, also called a dividing compass. Circles can be made by fastening one leg of the compasses into the paper with the spike, putting the pencil on the paper, and moving the pencil around while keeping the hinge on the same angle. Typically one part has a spike at its end, and the other part a pencil, or sometimes a pen. Compasses can be used for mathematics, drafting, navigation, and other purposes.Ĭompasses are usually made of metal, and consist of two parts connected by a hinge which can be adjusted. As dividers, they can also be used as a tool to measure distances, in particular on maps. A thumbscrew compass for setting and maintaining a precise radiusĪ compass or pair of compasses is a technical drawing instrument that can be used for inscribing circles or arcs.
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