... be. ... My understanding and experience has shown that the hardened steel will hold its magnetism better. If you think about it, hardened tools will often...
Thanks so much for the detailed instruction! I will post the results as the work progresses this summer. Cheers, Kon ... repro ... balance. ... bulge ... have...
Mark, Came across two books you might finuseful: Galileo Galilei, "operations of the geometric and military compass" isbn 0-87474-383-4 Smithsonian, 1978. ...
Since there is no email contact for the SHS on its web site (http://www.surveyhistory.org/surveyor's_historical_society.htm), I thought this might be a good...
I am familar with George L. Hosmer who co-authored surveying text books with Charles Breed. Does anyone know of a George S. Hosmer that had anything to do with...
Dan In the copy of Breed and Hosmer I have, revised by Alexander bone of MIT, printed in 1970, he is identified as George L. Hosmer, Late Professor of Geodesy....
I just acquired a K&E "Whyteface" steel tape which is missing the pull tab on the end. If anyone has one they don't need or can tell me where to get one, it...
Dear group, A friend of mine came up with a question about a surveyor's instrument ... Can any of you help on this matter? The instrument is possibly of German...
Dear Nicolas, I invite you to contact my wife, Mary Root, who just wrote a short article about spirit levels and has additional research. She is the editor of...
I have a Topcon AG-20B Theodolite that I am looking to find a user/instruction manual for. It may not be an old unit historically but by modern digital terms...
... .................................. Mike, Hold the eyepiece up to a strong light and if it is dark, it is probably meant to be attached to the telescope...
James Kluttz
bkluttz@...
Nov 7, 2007 7:01 pm
236
... Could you send me a picture of it or post one here? Nicoląs...
I've got a picture at: http://www.iowasurveyor.com/junk/topcon-arrow.JPG I drew an arrow to what I think you may be asking about. If it's not, then sorry. I...
... It looks to me that it is the optical plummet. When yoy mount it on a tripod you will see the ground through it. It serves the same purpose as a normal...
I posted a picture of the Theodolite in the Photos section with two red arrows showing the parts I'm interested in learning about. The bottom arrow is the...
The top arrow points at what I think is a hole for electrical lighting. It will either illuminate the scales or the cross hairs or both. The eyepiece... I...
Turns out the bottom eyepiece is an optical plummet as some suggested. If anyone figures out the the top item, I'd appreciate it. Thanks for the help so far. ...
List, In looking at portraying an 1820's-30's surveying party, would you(the list) suggest using wooden chaining stakes or petal pins? I would like to err on...
Scott I recall seeing in a chapter from a late 17th or early 18th century engineering book, a description of what we call surveying stakes or pins today. In...
... I have an original metal (iron) chain winder datable to the later part of the 1700s. I also use matal stakes (wrought iron) for my interpretation (c1790.)...
AEP
aepalmer@...
Dec 8, 2008 10:33 pm
250
... (the ... like ... I'm ... wooden, ... Try this web site: http://www.amesinstrumentcompany.com/other.html They offer chains as well as chaining pins,...
I have listed today, with Mr. Edward Bay, a reproduction brass half Gunter's Chain made by Mr. Milton Denny. Reproduction Andrew Ellicott style (circa 1790)...
I am looking for photos of early surveyor's of southern Oregon, especially of Josephine County. I am working on trying to get pictures of all the County...
... Cherie, I have done similar research for County Surveyor's in my area. I am still researching and always looking. One thing that you might try since County...
John Love's "*Geodaesia: Or the Art of Surveying & Measuring Land Made Easy"* ** *Priced at $21.99 (plus shipping) for quick sale. All net proceeds go to the ...
John Love's *"**Geodaesia: Or the Art of Surveying & Measuring Land Made Easy"* ** *Priced at $21.99 (plus shipping) for quick sale.* All net proceeds go to ...
Greetings, I am a recent member of S.A.R. and a six year 4H County Coordinator for the Shooting Sports Program in the state of Ohio. In 3 weeks I will be...
Kirk, You may want to visit our web site (which is being re-built, and is lacking some of its original content) at www.armygeographer.org Our man in Ohio is ...
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