DrawingInstruments at Yahoo! Groups

Riefler Perspective Compass?

collectingken — Tue, 24 Nov 2009 04:13:14 GMT

I recently aquired a Riefler Perspective Compass which appears to be a set of proportional dividers which instead of having a scale have points on the side

Re: question on drawing instruments

weymouthdavid — Sun, 15 Nov 2009 15:51:49 GMT

Ellen, Email me a picture to drdriches@... and I will tell you more about it. David M Riches

Re: question on drawing instruments

ELLEN LAIR — Sun, 15 Nov 2009 13:12:29 GMT

thank you to everyone with information on this set i am very impressed with your knowledge .I do have another question,how do you know if it is for a square or

Re: question on drawing instruments

weymouthdavid — Sun, 15 Nov 2009 09:41:36 GMT

Further to my recent post I have now examined a Schoenner flat pattern compass and in fact it does not use the Schoenner patent straightening device but uses

Re: question on drawing instruments

weymouthdavid — Sun, 15 Nov 2009 08:48:23 GMT

I can confirm that these would be Schoenner instruments. I have a couple of these sets with the patent date on the head fork of the compasses on the opposite

Re: question on drawing instruments

collectingken — Sun, 15 Nov 2009 05:16:25 GMT

I suspect these are Schoenner instruments. Check patent No. 723041 on Google patents to verify that this resembles your instruments. The patent is for a

Re: question on drawing instruments

Bill Burns — Sun, 15 Nov 2009 04:40:25 GMT

... This Google search should show all the patents issued on that date, OCR errors aside:

question on drawing instruments

ELLEN LAIR — Sun, 15 Nov 2009 03:44:09 GMT

Hello ,can anyone have any information or history on a set of mechanical drawing tools i acquired in a sale .it is a wooden case covered in leather the inside

Brook's flexible curve

weymouthdavid — Thu, 05 Nov 2009 14:01:54 GMT

I have posted a picture of a Brook's pattern B flexible curve. It is 12" long and spring steel backed with brass links which both set and hold the shape. It is

Re: W F Stanley folding arm vernier protractor

weymouthdavid — Thu, 22 Oct 2009 08:03:04 GMT

Ron, Yes, the centre is glass with cross hairs for alignment. That's the same as on my much earlier John Cail instrument (photos 63 to 65 in my album). However

Re: W F Stanley folding arm vernier protractor

ronbo717 — Thu, 22 Oct 2009 00:05:30 GMT

A very nice instrument. What is in the center to align over the origin point? I would guess glass with cross hairs etched in black? Thanks. Ron

Re: W F Stanley folding arm vernier protractor

robert pilla — Wed, 21 Oct 2009 19:26:56 GMT

David, That is a very nice piece, Great find. Robert ... From: weymouthdavid Subject: [Drawing Instruments] W F Stanley folding arm vernier

W F Stanley folding arm vernier protractor

weymouthdavid — Wed, 21 Oct 2009 17:47:38 GMT

I have uploaded pictures of my latest acquisition, a W F Stanley folding arm vernier protractor. It is made of electrum (German silver) with inset silver scale

Re: I could use some help

mchavez56 — Sun, 18 Oct 2009 22:01:10 GMT

Outrageous! Definitely a coffee of beer. My office is at 4th and Madison. I work for ZGF Architects. next week is trashed as is the first 1/2 of the next (I'm

Re: I could use some help

tjstanton1953 — Sun, 18 Oct 2009 01:30:24 GMT

I live in downtown Seattle (7th and Westlake) and can give you a hand as well. Marc, I had no idea you lived here, we need to meet up and have a beer or a