Download or read book Handbook and Catalog Engineering Surveying Mining Instruments written by and published by . This book was released on 1915 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook and Catalog written by C.L. Berger & sons and published by . This book was released on 1923 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook Catalog written by C.L. Berger & sons and published by . This book was released on 1916 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook and Catalog Engineering Surveying and Mining Instruments written by C. L. Berger & Sons and published by Rarebooksclub.com. This book was released on 2013-09 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...horizontal wire coincides with the mark and then clamp the side-telescope to its hub. The telescopes are now set to correspond with thg zero of the vertical circle. To place the telescopes at an angle with each other. Level up and fix a mark when the main telescope is level. Then raise or depress the main telescope the required angle and clamp the horizontal axis. Now move the side-telescope until its horizontal wire bisects the mark and clamp it firmly to its hub. During an extended operation with the side-telescope, the relative position of the two telescopes should be verified from time to time to detect any disturbance of the side-telescope. Tm_nsits having the telescope mounted at the end of the horizontal axis of revolution are sometimes used in mines; or, as shown in the Alt.-Azimuths Nos. 15a and 15b, this construction is used in some instruments for geodetic and smaller astronomical work. The adjustment of such a telescope for collimation may therefore be explained in this connection. The following method is as simple as any: --. Select a well-defined object, as a church-spire, distant at least 5 or 6 miles. The..1strument being leveled, bisect the object with the vertical wire and read the verniers of the horizontal limb. Then turn the vernier plate so as to read exactly 180 different from the previous reading, and revolve the telescope. If the vertical wire is adjusted for collimation it will again bisect the distant object, since the space covered by the cross-wires on an object at such a distance will be much greater than the change in the position of the telescope as caused by its excentricity from the center of the instrument. If it does not again bisect the object, correct one-half the error by means of the hon zontal..
Download or read book Engineering Surveying and Mining Instruments written by and published by . This book was released on 1920 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook and Illustrated Catalogue of the Engineers and Surveyors Instruments of Precision written by C.L. Berger & sons and published by . This book was released on 1912 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Surveying Mining Instruments written by C.L. Berger & sons and published by . This book was released on 1916 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Surveying Mining Instruments written by Cl Berger &. Sons and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get up to speed on the latest tools and techniques in engineering, surveying, and mining with this comprehensive guide to instruments. From the basics of measuring distances to the latest advances in GPS technology, this book offers everything you need to know to stay on the cutting edge of your field. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Engineering Surveying and Mining Instruments written by C. L. Berger & Sons and published by Theclassics.Us. This book was released on 2013-09 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 edition. Excerpt: ...then, if a meridian mark is used (which is not absolutely necessary), the transit should be set up in the meridian by the main telescope and the pointing on the sun or star may be made with the auxiliary telescope with or without the prism, as conditions may require. In observing transits the auxiliary telescope should be mounted on top and ranged into line with the vertical wire of the main telescope by using the two opposing screws as explained. In making solar and stellar observations with the main telescope and prism attachment, the telescope should always be reversed through the standards with the objective down instead of up. Cross Section Showing Our Edge-bar Needle and Compass-Likewise the watertight needle lifter combined with the toothed variation ring and pinion motion for instantaneously changing the graduation to any declination East or West. The needle shown in the cross section of our Transit compass also in the top view on opposite page, represents the form adopted and preferred by us for all of our compass instruments, because it has its greatest dimensions in the vertical direction; hence its name. At the ends, where it is read, it is quite thin, but increases in thickness symmetrically towards the central part to give it the rigidity necessary to retain the true longitudinal shape and yet be very light of weight to minimize the dulling of the pivot on which it swings. The point of suspension in the steel cap and the two ends of the needle are in a straight line, thereby forming the geometric axis. The advantage derived from the edge-bar form, therefore, is that its magnetic axis must be contained in the geometric axis of the needle, whence it follows that there is no index error at its reading ends. This cannot be...
Download or read book Handbook and Illustrated Catalogue of the Engineers and Surveyors Instruments written by and published by . This book was released on 1884 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hand book and Illustrated Catalogue of the Engineers and Surveyors Instruments Made by Buff Berger written by Berger (C.L.) and Sons, Boston and published by . This book was released on 1892 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Engineering Surveying and Mining Instruments written by Berger, C.L., & sons and published by . This book was released on 1927 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hand book and Illustrated Catalogue of the Engineers and Surveyor Instruments of Precision written by C.L. Berger & sons and published by . This book was released on 1910 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hand Book and Illustrated Catalogue of the Engineers and Surveyors Instruments Made by Buff and Berger written by Buff And Berger Boston and published by Forgotten Books. This book was released on 2017-12-23 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Hand-Book and Illustrated Catalogue of the Engineers' and Surveyors' Instruments, Made by Buff and Berger: Part I, A Full Description of the Instruments and Concise Directions How to Take Care of and Adjust Them; Part II, Illustrated Catalogue and Price List of Engineering, Surveying and Astronomical Instruments Instruments intended for mining and mountain use can have the verniers so placed that they may be read without changing the position of the engineer after sighting through the telescope. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Engineering and Mining Journal press written by and published by . This book was released on 1922 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of engineering surveying and mining instruments written by Berger (C.L.) Boston and published by . This book was released on 1910 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Mining Journal written by and published by . This book was released on 1922 with total page 1350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
