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DrawingInstruments · Drawing Instruments

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Group Information

  • Members: 418
  • Category: Collecting
  • Founded: May 13, 2001
  • Language: English
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Description

Welcome to everyone interested in drafting and drawing instruments, and/or related tools and materials.

The Charter: This group provides an open forum for people who collect and/or use these beautiful instruments. We're here to exchange information, history, techniques, news, and anecdotes on all aspects of the subject. While many members are collectors, anyone with an interest in the subject is welcome to participate. We are always interested in hearing from people who have used these instruments and materials in their careers.

The Disclaimer: We only moderate membership. Messages are unmoderated, and I hope to keep it that way, so please exercise common sense and courtesy. You are welcome to post messages about items for sale or swap, but please refrain from using this forum to promote auctions or other commercial operations. Please note that any offensive, commercial, or off-topic posts will be deleted without notice.

Thanks for visiting and participating.

Most Recent Messages

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Re: Weber-Schneider planimeter
Hi John, This is the original case. The clean design of Baraban-Thomas proportional divider and this case had interested me much. Dan
Posted - Wed Apr 24, 2013 7:52 am
danlinealis
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Re: Tamaya 3 arm protractor
Ron, Eric, One particular use was for establishing position from three landmarks when conducting hydrographic surveys. The angles between adjacent landmarks
Posted - Tue Apr 23, 2013 8:23 am
David Riches
weymouthdavid
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Re: Tamaya 3 arm protractor
Ron.. As far as I know, the three arm protractor was a maritime navigational aid which allowed a ship to stay on station. It’s been years since I researched
Posted - Tue Apr 23, 2013 3:39 am
cowtown_eric
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Weber-Schneider planimeter
Hi Dan, Interesting planimeter. A quick translation from the patent description: To determine the surface area of figure `x' (fig. 1), using pointed cursor
Posted - Sun Apr 21, 2013 4:20 pm
planimetrica
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Tamaya 3 arm protractor
I acquired a Tamaya 3 arm protractor recently and uploaded photos of it in my Ron Blauch photo folder. The age is a question. I'm guessing around WW2 era.
Posted - Sun Apr 21, 2013 3:01 pm
ronbo717
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2013 19 10 28 23
2012 24 12 15 41 11 23 48 38 13 13 5 25
2011 25 31 25 38 50 18 28 21 18 49 19 60
2010 23 9 15 2 11 15 38 27 29 45 23 22
2009 38 15 12 10 25 18 39 2 5 16 9 30
2008 84 30 55 95 59 34 39 37 22 51 15 17
2007 56 38 15 55 10 2 29 39 43 21 51 74
2006 49 15 52 50 49 12 20 48 14 51 45 27
2005 4 6 45 46 43 8 11 23 27 34 8 21
2004 39 10 9 17 11 17 7 22 12 12 11 14
2003 15 9 15 13 5 8 8 1 5 1 11 57
2002 33 12 11 11 17 17 10 8 5 25 8 36
2001 71 42 42 14 30 87 25 95

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