RE: Sorvall 45700 Glass Knife Maker

From:"Monson, Frederick C."

Hi Margaret,
	If that is the little, but heavy, rectangular cube, it's purpose is
to break triangular glass knives for the JB-4.  I think EMS still markets a
similar knife breaker with its version of the JB-4.  Steve Slap (Hacker
Instruments) may have the definitive answer to this one.  The JB-4 was
intended to use 1/2" glass knives for cutting semi-thin sections from
glycol-methacrylate (GMA) embedded tissues.  I did use that knife breaker
for 6mm triangles for ultramicrotomy, however, and they always seemed to
work for that purpose.  If you are looking for a manual, I think EMS can
provide one.


Fred Monson

> ----------
> From: 	Margaret Gondo
> Sent: 	Thursday, April 11, 2002 10:38 AM
> To: 	HistoNet Server
> Subject: 	Sorvall 45700 Glass Knife Maker
> Hi All -
> I have unearthed a Sorvall 45700 Glass Knife Maker.  I can't seem to
> locate any other information on this.  I'm just curious if anyone out in
> Histoland knows if the instrument will make a Ralph Knife.  
> Thanks in advance,
> Margaret

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