<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Dear Vanessa,</p>
<p>regardless however you get to open the stopper jars, don't use
the same lid again, since you will be facing the same problem in
the future. It seems like your lids do not really fit to the jar
and was just pressed inside to somehow fit, then the lids get
clammed and are a pain to open. Historical grounded stopper jar
usually were made with unique lid, so that it only fits on the jar
it was made for even if they seem to be fitting, its not.
Sometimes you actually find some numbers engraved in the jars and
lid, marking the right fit.</p>
<p>If I understand right, your goal is to replace lids? or the whole
jar?</p>
<p>If you are wanting to replace grounded lids, you will face the
upper mentioned problem that they wont fit. Besides that no
supplier sells only lids. </p>
<p>The flat round lids, you can cut yourself with <a
href="https://www.glasinsel-shop.de/de/glas-und-zubehoer/Tiffany-Glaskunst-Zubehoer/rundschneider/rundschneider-bohle-silberschnitt-mit-6-stahlraedchen-fuer-72-mm-600-mm.html">this</a>.
You will have to grind them on one side using some carborundum
(silicon carbide) of about 180 grit. The same for the jar you will
be using (flat top). Then you can choose a variety of sealing
methods, the ones making a slight under pressure in the jar
(through heating up the lid), make a fantastic seal.</p>
<p>If you need new jars, you might seek at Dirk's proposed
suppliers. There is a third company making very affordable
grounded stopper borosilicate jars, called <a
href="https://www.kavalier.cz/en/jars-specimen-with-ground-in-cover-with-knob-sp63.html">Simax/Kavalier</a>.
I just ordered a large number of those for a project in
Switzerland and I'm very happy with them. Even though DWK sells
better ones, but this cost the half or 1/3 of the German ones (not
that i want to promote price dumping, but DWK is definitely to
expensive, I've told that the people in charge there already).</p>
<p>You might be able to grind down the large grounded stopper jars
you already have, but give this to someone that has experience in
grinding glass (maybe a local glazier). Then you can use the flat
lids for this jars then aswell.</p>
<p><br>
</p>
<p>Be careful with making to much pressure in the jar, the jumping
lids is one possible accident, but the worst scenario is a full
explosion of the jar, that's a real mess and a big loss of
fantastic and irreplaceable glassware.</p>
<p><br>
</p>
<p>All the best from the Ruhrarea,<br>
</p>
<div class="moz-cite-prefix">Am 15.11.23 um 16:19 schrieb Dirk
Neumann:<br>
</div>
<blockquote type="cite"
cite="mid:d7f8dc4b-a6bf-4a34-8620-6e172cbe61d3@leibniz-lib.de">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<div class="moz-cite-prefix">Hi Vanessa,</div>
<div class="moz-cite-prefix">Stölzle Oberglas (but they no longer
have jars on stock, only occasionally), or you can contact
Gassner Glastechnik in Munich (<a
href="https://gassner-glastechnik.de/kontakt/"
moz-do-not-send="true">link</a>); they can customise flanged
borosilicate jars which you can easily (and hermitically) seal
with a good, silicone-free ground-stopper grease like Alsirol (<a
href="https://www.fishersci.de/shop/products/joint-grease-1/10130201"
moz-do-not-send="true">link</a>)<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Neubert (<a
href="https://www.neubert-glas.de/laborglas/onlineshop/katalog.php?KATfrom=suche&SearchText=pr%E4parat&struc=1_995727484085_1030342896125_1005301727684_1515949502601&kat=1023362157218&PHPSESSID=1effb50f3b77f3e7035b5480d4f6ce4b"
moz-do-not-send="true">link</a>) sells DWK Schott jars, but
they are usually not too large, and we need a re-seller as
museums cannot order directly at DWK (<a
href="https://www.dwk.com/duran-museum-jar-with-ground-glass-plate"
moz-do-not-send="true">link</a>)<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">It might also help if you place the
jars into warmer working space rooms for a while, or, as Paul
mentioned, put the jar into a shower and try with warm water.
Watch any external labels and protect them against soaking.</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix"> Hope this helps</div>
<div class="moz-cite-prefix">Dirk<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Am 15.11.2023 um 15:02 schrieb
Callomon,Paul:<br>
</div>
<blockquote type="cite"
cite="mid:BL0PR01MB52202E961CFAC9006994CC1AC3B1A@BL0PR01MB5220.prod.exchangelabs.com">
<meta name="Generator"
content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]-->
<style>@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}@font-face
{font-family:"Yu Gothic";
panose-1:2 11 4 0 0 0 0 0 0 0;}@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}@font-face
{font-family:"\@Yu Gothic";
panose-1:2 11 4 0 0 0 0 0 0 0;}p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}span.apple-converted-space
{mso-style-name:apple-converted-space;}span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}div.WordSection1
{page:WordSection1;}</style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal">Hi Vanessa,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Stubborn tapered ground-glass lids like
those you show often loosen if you simply pour hot water
over them, as the jar neck expands further than the lid.
Don’t make the water too hot, though, as the glass could
crack – I find hot water from the tap is usually enough to
do the trick.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="background:white"><span
style="font-size:12.0pt;color:black">Paul Callomon<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:12.0pt;color:black">Collection Manager,
Malacology and General Invertebrates<i><o:p></o:p></i></span></p>
<div class="MsoNormal"
style="text-align:center;background:white" align="center">
<span style="font-size:12.0pt;color:black">
<hr width="100%" size="2" align="center">
</span></div>
<p class="MsoNormal" style="background:white"><b><span
style="font-size:12.0pt;color:black">Academy of
Natural Sciences of Drexel University</span></b><b><span
style="font-size:12.0pt;color:black"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:12.0pt;color:black">1900 Benjamin
Franklin Parkway, Philadelphia PA 19103-1195, USA<br>
<i><a href="mailto:prc44@drexel.edu"
moz-do-not-send="true"><span style="color:#0563C1">prc44@drexel.edu</span></a>
Tel 215-405-5096 - Fax 215-299-1170</i><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-left:.5in"><b>From:</b>
Nhcoll-l <a class="moz-txt-link-rfc2396E"
href="mailto:nhcoll-l-bounces@mailman.yale.edu"
moz-do-not-send="true">
<nhcoll-l-bounces@mailman.yale.edu></a> <b>On
Behalf Of </b>Vanessa Pitusi<br>
<b>Sent:</b> Wednesday, November 15, 2023 2:42 AM<br>
<b>To:</b> <a
class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:nhcoll-l@mailman.yale.edu"
moz-do-not-send="true">
nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> [Nhcoll-l] Large specimen jars need
opening - help!<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<table class="MsoNormalTable"
style="width:100.0%;margin-left:.5in" width="100%"
cellpadding="0" border="0">
<tbody>
<tr>
<td
style="border:none;border-left:solid goldenrod 3.0pt;background:cornsilk;padding:0in 3.0pt 0in 3.0pt">
<p><b><span
style="font-family:"Arial",sans-serif;font-variant:small-caps;color:black">External.</span></b><b><span
style="font-family:"Arial",sans-serif;font-variant:small-caps"><o:p></o:p></span></b></p>
</td>
</tr>
</tbody>
</table>
<div>
<div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="color:black;background:white">Hi!</span>
<o:p></o:p></p>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">I posted the following on a
Facebook page for Museum collection managers and
was advised to ask here for help. So, any answer
would be greatly appreciated!<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">I work at the Tromsø Museum
(Norway), and we have numerous large and tall
glasses containing specimen. The ethanol level
on some of them is starting to be low, but we do
not know how all of them were sealed.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">Some were sealed with
linseed oil putty, which I was advised to open
by warming. However, some have no putty but are
firmly stuck. Any advice on a good solvent to
use to open those? The Internet tells me
something like Xylene could do the job, but just
wanted to get some more opinions.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">Secondly, does anyone based
in Europe know of any suppliers that make such
glasses and lids?<span
class="apple-converted-space"> </span><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black"><o:p> </o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">Photos for reference of size
and lids (that I am after).<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">Kind regards,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black">Vanessa Pitusi<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"
style="margin-left:.5in;background:white"><span
style="color:black"><o:p> </o:p></span></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="color:black;background:white">Sent from<span
class="apple-converted-space"> </span><a
href="https://aka.ms/o0ukef"
moz-do-not-send="true"><span style="color:#0086F0">Outlook
for iOS</span></a></span><o:p></o:p></p>
</div>
<div id="ms-outlook-mobile-signature">
<div>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
</div>
<p class="MsoNormal" style="margin-left:.5in">Sent from
<a href="https://aka.ms/o0ukef" moz-do-not-send="true">
Outlook for iOS</a><o:p></o:p></p>
</div>
</div>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Nhcoll-l mailing list
<a class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:Nhcoll-l@mailman.yale.edu" moz-do-not-send="true">Nhcoll-l@mailman.yale.edu</a>
<a class="moz-txt-link-freetext"
href="https://mailman.yale.edu/mailman/listinfo/nhcoll-l"
moz-do-not-send="true">https://mailman.yale.edu/mailman/listinfo/nhcoll-l</a>
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See <a class="moz-txt-link-freetext"
href="http://www.spnhc.org" moz-do-not-send="true">http://www.spnhc.org</a> for membership information.
Advertising on NH-COLL-L is inappropriate.
</pre>
</blockquote>
<p><br>
</p>
<div class="moz-signature">-- <br>
<meta name="Generator" content="Microsoft Word 15 (filtered)">
<style>@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}@font-face
{font-family:"Source Sans Pro";
panose-1:2 11 5 3 3 4 3 2 2 4;}p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin-top:0cm;
margin-right:0cm;
margin-bottom:8.0pt;
margin-left:0cm;
line-height:107%;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}a:visited, span.MsoHyperlinkFollowed
{color:#954F72;
text-decoration:underline;}.MsoChpDefault
{font-family:"Calibri",sans-serif;}.MsoPapDefault
{margin-bottom:8.0pt;
line-height:107%;}div.WordSection1
{page:WordSection1;}</style>
<div class="WordSection1">
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<b><span
style="font-family:"Source Sans Pro",sans-serif" lang="EN-US">****</span></b></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<b><span
style="font-family:"Source Sans Pro",sans-serif" lang="EN-US"> </span></b></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<b><span
style="font-family:"Source Sans Pro",sans-serif" lang="EN-US">Dirk
Neumann</span></b></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif"
lang="EN-US">Collection Manager, Hamburg</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif"
lang="EN-US"> </span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif"
lang="EN-US">Postal address:</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<b><span
style="font-family:"Source Sans Pro",sans-serif" lang="EN-US">Museum
of Nature Hamburg</span></b><span
style="font-family:"Source Sans Pro",sans-serif"
lang="EN-US"><br>
</span><span
style="font-family:"Source Sans Pro",sans-serif;
color:#008669" lang="EN-US">Leibniz Institute for the Analysis</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif;color:#008669">of
Biodiversity Change</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif">Dirk
Neumann</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif">Martin-Luther-King-Platz
3</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-family:"Source Sans Pro",sans-serif">20146</span><span
style="font-family:"Source Sans Pro",sans-serif">
</span><span
style="font-family:"Source Sans Pro",sans-serif">Hamburg</span><span
style="font-family:"Source Sans Pro",sans-serif"><br>
+49 </span><span
style="font-family:"Source Sans Pro",sans-serif">40</span><span
style="font-family:"Source Sans Pro",sans-serif">
</span><span
style="font-family:"Source Sans Pro",sans-serif">238
3</span><span
style="font-family:"Source Sans Pro",sans-serif">17
–
</span><span
style="font-family:"Source Sans Pro",sans-serif">628</span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<u><span
style="font-family:"Source Sans Pro",sans-serif;color:blue"><a
href="mailto:d.neumann@leibniz-lib.de"
class="moz-txt-link-freetext" moz-do-not-send="true">d.neumann@leibniz-lib.de</a></span></u></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<a
href="imap://dneumann@webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de"
moz-do-not-send="true"><span
style="font-family:"Source Sans Pro",sans-serif">www.leibniz-lib.de</span></a></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-size:10.0pt;font-family:"Source Sans Pro",sans-serif"> </span></p>
<p class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal">
<span
style="font-size:10.0pt;font-family:"Source Sans Pro",sans-serif">--
<br>
Stiftung Leibniz-Institut zur Analyse des
Biodiversitätswandels<br>
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany<br>
<br>
Stiftung des öffentlichen Rechts;<br>
Generaldirektion: Prof. Dr. Bernhard Misof
(Generaldirektor), Adrian Grüter (Kaufm. Geschäftsführer)<br>
Sitz der Stiftung: Adenauerallee 160 in Bonn<br>
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst</span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;line-height:107%;font-family:
"Source Sans Pro",sans-serif"> </span></p>
</div>
</div>
-- <br>
Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels<br>
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany<br>
<br>
Stiftung des öffentlichen Rechts;<br>
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor),
Adrian Grüter (Kaufm. Geschäftsführer)<br>
Sitz der Stiftung: Adenauerallee 160 in Bonn<br>
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst<br>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Nhcoll-l mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Nhcoll-l@mailman.yale.edu">Nhcoll-l@mailman.yale.edu</a>
<a class="moz-txt-link-freetext" href="https://mailman.yale.edu/mailman/listinfo/nhcoll-l">https://mailman.yale.edu/mailman/listinfo/nhcoll-l</a>
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See <a class="moz-txt-link-freetext" href="http://www.spnhc.org">http://www.spnhc.org</a> for membership information.
Advertising on NH-COLL-L is inappropriate.
</pre>
</blockquote>
<div class="moz-signature">-- <br>
</div>
<div class="moz-signature"><b>Fabian Neisskenwirth</b></div>
<div class="moz-signature">Restaurator/Präparator</div>
<div class="moz-signature"><br>
</div>
<div class="moz-signature">Oststr. 138</div>
<div class="moz-signature">DE-45057 Duisburg<br>
<br>
<div class="moz-signature">
<div class="moz-signature">
<div class="moz-signature">
<meta http-equiv="content-type"
content="text/html; charset=UTF-8">
<title></title>
Tel: +49 (0) 1573 2778729 <br>
</div>
<div class="moz-signature"><br>
<div class="moz-signature">
<div class="moz-signature"><a class="moz-txt-link-abbreviated" href="http://www.naturhistorische-konservierung.de">www.naturhistorische-konservierung.de</a><br>
</div>
<div class="moz-signature"><br>
</div>
<img
src="cid:part1.0a4VG0r4.DH3NneSk@naturhistorische-konservierung.de"
moz-do-not-send="false" width="496" height="192"></div>
</div>
</div>
</div>
</div>
</body>
</html>