The set posted is somewhat similar to a set shown in Eugene Dietzen Co.'s 1910 catalog. They are listed as "German Silver Scholar Instruments" for Elementary...
1372
robert
scortchedear...
May 1, 2006 11:56 pm
I know this is not an ellipsogragh but I thought I would post it in light of the conversation on ellipsographs. It is a specialty compass for drawing volutes....
1373
Dave
dveret
May 2, 2006 1:36 am
I think a better term for the volute compass would be acceleration rather than proportion since the spiral is dependent on a linear or non-linear acceleration...
1374
robert
scortchedear...
May 2, 2006 2:07 am
Thank you for the information on the Conchoidograph. I posted a scan from a book called "The Encyclopedia of Architecture" by Joseph Gwilt. It is an 1987...
1375
David Riches
weymouthdavid
May 2, 2006 5:35 pm
Bill, thanks very much for the info on my unknown maker set. Would it be possible to email me a scan of the relevant Dietzgen page? There is nothing like it in...
1376
pocketetui
May 3, 2006 2:01 pm
... I have sent you two scans and I hope they are of some help. Bill...
1377
mgeissbuehler
May 4, 2006 6:48 pm
I have made a description of my collection items (also available as PDF). There is always a link in the table to the related pics. You can also go direct to...
1378
herb_gold
May 5, 2006 8:02 pm
A beautiful collection. Thanks for sharing! ... From: DrawingInstruments@yahoogroups.com [mailto:DrawingInstruments@yahoogroups.com] On Behalf Of mgeissbuehler...
1379
lenbrighton
May 5, 2006 11:40 pm
Hi folks. I posted a message yesterday (or at least I think I did) but it hasn't appeared as yet. If the original one shows up please accept my apologies for...
1380
David Riches
weymouthdavid
May 6, 2006 7:40 pm
Len, The followoing may help: "Dotter". This is a dotting pen by E O Richter who was the patentee. His trade mark is clearly seen in the second picture. Date...
1381
lenbrighton
May 6, 2006 10:51 pm
David, many thanks for your kind input. Do you have any idea of the maker and date of manufacture for the dividers and approx date for the glass rule? Since I...
1382
drdriches@...
weymouthdavid
May 7, 2006 12:22 pm
Len, Can't help with the dividers. Re the French curves, the wood they were usually made of was pearwood (in the UK at least). The black curve would probably ...
1383
lenbrighton
May 7, 2006 10:23 pm
David, many thanks for all your info. Regards Len P.S. Any other members have any thoughts about the "Glass Rule"? And is there a market for these instruments?...
1384
pocketetui
May 11, 2006 2:40 pm
This is the second one of these I have seen however this one is much larger.... just what is it? Thanks and did anyone here get it? ...
1385
Antony Clarke
a_b_clarke
May 11, 2006 4:14 pm
It would be nice to see what you mean but the reference is too vague. Give the item no, its easier Regards Tony Clarke pocketetui <shawil@...> wrote:...
1386
pocketetui
May 11, 2006 5:14 pm
Sorry I guess the link didn't work. it is # 6274927018 ... its easier ... what is it? ... sense...
1387
robert
scortchedear...
May 11, 2006 7:51 pm
You have to copy and paste the two pieces of the URL. I have tried posting web links here and Yahoo cuts them into pieces to fit into the carriage returns. I...
1388
David Riches
weymouthdavid
May 11, 2006 7:53 pm
I have posted two pictures of my J Halden & Co bar adjusting proportional dividers in my photo album. I have posted these to show that the bar and micrometer...
1389
David Riches
weymouthdavid
May 11, 2006 8:36 pm
I agree with Robert Pilla that it looks like some sort of compass. It certainly is not a pantograph. There appears to be a permanently attached equivalent of a...
1390
pocketetui
May 11, 2006 11:41 pm
I have an old base that I picked up at a auction a few years ago for $ 7. (and it had a drum sander mounted on the top of it)....... anyway I have not seen...
1391
pocketetui
May 11, 2006 11:47 pm
Very nice.... I didn't realize they worked that way since I have never had a pair.... but now I know what to look for. Thanks...
1392
pocketetui
May 11, 2006 11:52 pm
I forgot to add.... notice the "U" shaped foot...... there is part of a mechanism to raise and lower a caster...... you know how some three legged tables have...
1393
Dave
dveret
May 12, 2006 3:16 am
The instrument appears to be an elliptical compass. To be certain I would have to see the shape of the plate positioned on the lower portion of the needle...
1394
David Riches
weymouthdavid
May 16, 2006 6:55 pm
As I know there are some lead holder enthusiasts among the members i have posted a picture of the oldest ones in my collection, in my album. They are as...
1395
robert
scortchedear...
May 18, 2006 1:05 am
I have several old Kern drawing sets from the late 20th century and there is an open slot in both of them near the hinge for the case. The slot is square and...
1396
pocketetui
May 18, 2006 2:49 am
I have a German / Swiss set with a similar empty slot.... I have always thought a rule or squarish wooded straight edge went in there.... I had assumed mine...
1397
Markus Geissbuehler
mgeissbuehler
May 18, 2006 4:30 am
Hello The missing piece in the empty slot was the ink stick. All these sticks are missing in most drawing intruments sets. (regarding pens and inks see...
1398
vicente.zorrilla@...
May 18, 2006 8:44 am
Hi, I attach a picture of my collection were you can see a piece similar as you are asking for. It is a square piece of wood but it is not a rule. Because...
1399
pocketetui
May 18, 2006 1:15 pm
Hello Vincente, I can't find where you have attached the photo? Thank you, Bill...
1400
manfred_hausmann
manfred_haus...
May 19, 2006 5:09 am
I have created an album in my name (Manfred) and added a picture of a small drawing set which includes a pen in the slot nearest to the hinge. I believe the...
