Author: C.L. Berger & sonsPublisher:
ISBN:
Category : Mine surveying
Languages : en
Pages : 280
Book Description
Engineering Surveying & Mining Instruments
Author: C.L. Berger & sonsPublisher:
ISBN:
Category : Mine surveying
Languages : en
Pages : 280
Book Description
Handbook and Catalog
Author: C.L. Berger & sonsPublisher:
ISBN:
Category : Engineering instruments
Languages : en
Pages : 253
Book Description
Handbook and Catalog, Engineering, Surveying & Mining Instruments
Author: Publisher:
ISBN:
Category : Astronomical instruments
Languages : en
Pages : 272
Book Description
Engineering, Surveying & Mining Instruments
Author: C.L. Berger & sonsPublisher:
ISBN:
Category : Astronomical instruments
Languages : en
Pages : 253
Book Description
High Grade Engineering, Surveying and Mining Instruments
Author: Buff & Buff Manufacturing Company, BostonPublisher:
ISBN:
Category : Engineering instruments
Languages : en
Pages : 130
Book Description
Engineering Surveying and Mining Instruments
Author: C. L. Berger & SonsPublisher: Theclassics.Us
ISBN: 9781230461618
Category :
Languages : en
Pages : 110
Book Description
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...
Handbook & Catalog
Author: C.L. Berger & sonsPublisher:
ISBN:
Category : Astronomical instruments
Languages : en
Pages : 253
Book Description
The Evolution of Mine-surveying Instruments
Author: Dunbar D. ScottPublisher:
ISBN:
Category : Engineering instruments
Languages : en
Pages : 346
Book Description
High Grade Engineering, Surveying And Mining Instruments
Author: Buff & Buff Manufacturing CompanyPublisher: Legare Street Press
ISBN: 9781017061574
Category :
Languages : en
Pages : 0
Book Description
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.
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