Wild heerbrugg t2 theodolite and setup its time to clear out the garage, first to go is a collection of surveying equipment please see other items this item inculdes the following wild t2. The theodolite features a coincidence micrometer circle reading system. It is particularly useful for rapid traversing, based on magnetic bearings, especially in areas where visibility is limited and the traverse legs likely to be short. Wild t2 theodolite in collectible surveying equipment for sale ebay. The wild t2 is the classic optomechanical theodolite. You will find all kind of interesting facts about history, but also information to earlier products. This message is for all reilnet subscribers and users of the gps. There is also a wide range of objective accessories, such as supplementary front lenses and parallelplate micrometers. Please use the following link to view that information on his website. Theodolites how does a theodolite work theodolite vs.
Great savings free delivery collection on many items. Wild heerbrugg t2 theodolite for surveying this is an old wild heerbrugg t 2 theodolite sn t2 110215. The term diopter was sometimes used in old texts as a synonym for. The instrument was dubbed double centre theodolite, probably as it was the first wild heerbrugg theodolite to have an exchangeable tribrach see figure 6, quite similar to the one of the carl zeiss thi heinrich wild designed in the early 1920s. This is the famous wild t2 micrometer theodolite and due to its compact and sturdy construction it has been used by surveyors all over the world ever since heinrich wild created the first model t2 back in the 1920s. As the first major product, wild developed the theodolite wild t2. English text in the 20th century heinrich wild and wild heerbrugg revolutionized the surveying instruments and thus the whole surveying buisness with this site i want to make a small contribution to keep it well known. This page will give you a overview to the product variety from wild heerbrugg over. Wild used different serial number lists for different product categories and i was able to safe most of these books from getting scrapped. Unfollow wild t2 theodolite to stop getting updates on your ebay feed.
With continuing refinements instruments steadily evolved into the modern theodolite used by surveyors today. A little over 100 years later, in a small empty textile mill in heerbrugg, heinrich wild developed the t2, the worlds first truly portable optomechanical theodolite, and therewith, building the foundation of modern surveying. Askania tu400 theodolite, a 1951 wild n2 level, a 1960s jenoptik koni 007 level, a 1960s zeiss opton ni 2 level, a 1956 geodetic sextant, and various accessories. Different theodolites can have different methods of readings. Wild theodolite t2 national museum of american history. Ruth ann discovers this in bens surveyors tent with the land mapping agency. You will be using a universal theodolite, model wild t2, for these measurements. Theodolites description, adjustments and methods of use of the sixinch micrometer block survey reiterating transit theodolite 1912 pattern, ottawa, government printing bureau, 1916, by william henry herbert page images at hathitrust. Laser eyepiece and laser tube gl02, wild heerbrugg, switzerland, on the theodolite wild t2 358 precision instruments conductor in such a way that the image of the light spot of the beam, focussed by the focussing lens of the telescope, falls on the centre of the crosshair. His wild t2, t3, and a1 instruments were made for many years, and he would go on to develop the dk1, dkm1, dm2, dkm2, and dkm3 for kern aarau company. In addition to its high accuracy, with direct reading, to single seconds, it is simple to handle, has a wellilluminated optical and reading system and can be used with a large variety of accessories and attachments. This example is marked wild heerbrugg switzerland t2 50903 and was probably made around 1956. To insure that certain terms are not misunderstood the following definitions are given. Theodolite scientific instruments products for sale ebay.
Hardly another surveying instrument has so profoundly influenced surveying on every continent. Theodolite vs transit how to use a theodolite how a theodolite works. Vintage images, astronomy, cart, engineering, graphic design, history. Precision instruments for horizontal and vertical setting. This theodolite is one of several used by british surveyor george everest when carrying out his surveys of india. Use this link to see the page with the wild theodolites and accessories for every survey task with technical data of the wild theodolite from 1965. The original wild t2 was one of the first theodolites to feature glass circles and an optical reading system, after wild s zeiss th1. For further details of the gak1 and the modifications required to the theodolite with which it is.
So i know the serial nomber and the product category or if i get a picture, in most case im able to tell you the production year. Get the best deals on wild t2 theodolite in collectible surveying equipment when you shop the largest online selection at. His wild t2, t3, and a1 instruments were made for many years. The national imagery and mapping agency, successor to dma.
With continuing refinements, instruments steadily evolved into the modern theodolite used by surveyors today. Willkommen welcome to the virtual archive of wild heerbrugg. The wild t16 direct reading theodolite is recommended as being the most suitable instrument for use with the gak1, but the t1a and t2 can also be used. This wild heerbrugg t2 universal instrument was part of a large donation to my collection together with a 1969 wild t2e theodolite, a 20th c. The wild t0 compass theodolite is a compact lightweight instrument, which can be used either for observing and settingout magnetic bearings or as a normal theodolite for measuring or turningoff angles. See also whats at wikipedia, your library, or elsewhere broader term. This page will give you a overview to the product variety from wild heerbrugg over the years use this link to see the technical data of the wild theodolites.
It has its original airtight and watertight steel case, and its original wooden shipping case. The new theodolite article about the wild t2 written by heinrich. It comes with the original wood storage case and two lights small items in front of the instrument you would need a power supply to use them. In the early part of the 20th century, heinrich wild produced theodolites that became popular with surveyors. The instrument has a partly digital circle display to 1. The instrument shown above is the wild t2 e which was a followon of the original instrument and was manufactured in the 1950s. This wild t2 universal instrument is equipped with glass circles 90mm diameter horizontal and 70mm diameter vertical and a optical reading mechanism. In addition to the method given for the wild t2 theodolite which is the theodolite that has been. Let me know your needs, for a small amount i will try to help you, finding the requested information. Everest theodolite, centuryused to measure the angles of the earth and considered more accurate than a transit.
Digital theodolites consist of a telescope that is mounted on a base, as well as an electronic readout screen. Produced by nathan altman, a purdue bcm spring 2009 graduate. The kern dkm2a has steel construction for maximum stability and precision. Juerg dedual of switzerland has compiled serial number information for wild theodolites and levels. Use this link to read a article about the changes from the first t2 to the leica tca2003. Coarse and fine orientationdrive to accurately set horizontal circle. Get the best deals on wild t2 theodolite when you shop the largest online selection at. Later models were launched when wild already had left the company, still bearing his name, such as the theodolite wild heerbrugg t4. For further details of the gak1 and the modifications required to the theodolite with which it is to be used our leaflet g1 404e should be studied.
The following models from the wild t2 where produced. Heinrich wild s optical theodolite, introduced in switzerland in the 1920s, had several new features, including an auxiliary telescope that lets the user read either circle without moving away from the station. Buy theodolite scientific instruments and get the best deals at the lowest prices on ebay. Another important new product engineered by wild was an aerial camera, later called aviophot for cartography. The wellknown wild t2 universal theodolite is ideally suited for almost every type of survey task. Doug keith, a professor at purdue university, demonstrates the t16 theodolite. The letters on the steel casedmatc 17502refer to the u. Find great deals on ebay for wild t2 and wild t2 theodolite. Unfollow theodolites to stop getting updates on your ebay feed. Free shipping on many items browse your favorite brands affordable prices. In the transit theodolite, which originated in london in the 1840s, the telescope is transit mounted, with a vertical circle mounted at one side. The new theodolite article about the wild t2 written by heinrich wild may 1925.