Date: Tue, 09 Nov 1999 18:44:45 -0700
From: Quentin Moore qmoore@Mines.EDU
Subject: Re: Reply requested
To: Claire Welty <weltyc@drexel.edu>

Claire

Sorry I haven't gotten back to you.

Seemsas if there are more things to do in a day than time.; I noticed that the port dimensions I gave you are wrong, they are incorrectly doubled.

The inner (small injection port) diameter should be 0.125" while the outer (the threaded port containing the septa and nut) should be 0.25".

Would it be more convenient for me to send you my AutoCAD file or import the CAD drawing to a Word document Looking at a fax transmission of the detailed drawings is difficult to read since the print quality isn't great - a problem I'm still trying to resolve

As per your questions

(1.)

(2.) Both the socket jam nuts andsepta were ordered by a second party, but I do know that the socket jam nuts were ordered from a company called Mic-Master; I'm working on the part numbers still

(3.) 1-way valves - Cole Parmer,Part#30600-00

2-way valves - Cole Parmer, Part#30600-03 (page 293 of '99-'00 catalogue)

(4.) The plexiglass channels are eight 24" long strips of plexiglass that I cut from a 1/4" thick sheet of plex.; Four of such strips constitute one channel.; For each channel I glued two of the strips to an inside wall of the tank 3/4" apart, making a groove;

Directly opposite, I glued the second two strips to the inside wall opposite the initial wall, making a second groove.; The screen and frit slide down into the groove;

The glue I used is specifically made for acrylic called 'Weld-On3'; The glue in essence bonds; two pieces of plex together by liquefying the top most layer and fusing the pieces together

(5.) The gasket material is ;generic hardware store gasket 1/4" thick.; I bought it as a ;roll, (4' by 25' I believe) I cut out enough gasket to run down the height of one side,across the length of the bottom, and up the height of the opposite side, as one continuous piece.; I didn't use any for the top since I'm running an unconfined system with no top plate. 

(6.) The screen material; again came from a local hardware store. For a fine mesh screen, I used simple window

screening; For support, I tied the window screen to a more sturdy largerholed thin metal screen. I make sure to rust proof the metal screenfirst.;

As for the frit material, again I'm not sure where it originated - it's something we have in abundance in the lab; I'm working on that too still.

(7.) No machining for the grooves, just the strips bonded to the walls

I know I haven't given all of what you asked, butI hope this helps and clears up any confusion. I still need to get to you

1 Source of the nuts and septa

2. Source of the frit

It is unfortunate you can't see the tank in I'm sure it would make conceptualizing the cell much easier