File:Transactions (1871) (14596769649).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (2,024 × 2,918 pixels, file size: 397 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]



Description
English:

Identifier: transactionsmining31amer (find matches)
Title: Transactions
Year: 1871 (1870s)
Authors: American Institute of Mining, Metallurgical, and Petroleum Engineers
Subjects: Mineral industries
Publisher: New York (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
French Miners Dial, with Telescope and Vertical Circle. telescopic M. Morin constructs also other instruments of asimilar class, mounted with two vertical arcs opposite one an-other instead of a complete vertical circle; also with a tele-scope, but without any \*ertical arc; and, again, with a longpiece of wood, pierced, for sighting-purposes, with two longi-tudinal holes. All these instruments, except Figs. 9 and 10,and the one with two vertical arcs, are mounted upon a com-mon form of ball-and-socket joint. The defects and inefficiencyof these instruments for mine-surveying are too apparent to re-quire any discussion. English Instruments.—Fig. 11 represents an instrument intro-duced some years since by Telford. It has only a singletanclard, upon which the vertical circle and the telescope are REMARKS DPOM SURVEYING tNSTRUM 739 jupported. It will be observed thai the single standard Israrved from the central vertical axis, which, together ivith the i . 11.
Text Appearing After Image:
Telfords Theodolite. thickness of the vertical circle, vernier-bar and semidiameterof the telescope, permits the telescope to revolve vertically 71<) REMARKS DPON BURVBTINQ INSTRUMENTS. over the center of the instrument, like a transit-theodolite.The vertical circle and the horizontal axis upon which thetelescope moves are clearly Bhown in the figure, as is also tin-mounting of the spirit-level al the back of the vertical circle,A pill-box level is inserted in a hole in the vernier horizontalcircle. In a circular box below the horizontal divided circle isplaced a traversing-plate, by means of which, and the clamp-ing plates above, the theodolite could be moved in any direction Fig. 12.

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14596769649/

Author Internet Archive Book Images
Permission
(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Flickr tags
InfoField
  • bookid:transactionsmining31amer
  • bookyear:1871
  • bookdecade:1870
  • bookcentury:1800
  • bookauthor:American_Institute_of_Mining__Metallurgical__and_Petroleum_Engineers
  • booksubject:Mineral_industries
  • bookpublisher:New_York__etc__
  • bookcontributor:Gerstein___University_of_Toronto
  • booksponsor:University_of_Toronto
  • bookleafnumber:802
  • bookcollection:gerstein
  • bookcollection:toronto
Flickr posted date
InfoField
30 July 2014

Licensing

[edit]
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.

Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14596769649. It was reviewed on 5 August 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

5 August 2015

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current05:53, 5 August 2015Thumbnail for version as of 05:53, 5 August 20152,024 × 2,918 (397 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Identifier''': transactionsmining31amer ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Ftransactionsm...

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Transactions_(1871)_(14596769649).jpg&oldid=936588781"