Minutes Feedthrough Meeting, 9:30-10:30 AM, November 13, 1997.

Attending: Keeler, Birney, Fincke-Keeler.

A meeting was called to discuss the design and assembly of:
1. Vacuum tester for the urgent weld tests.
2. Test system and support stand for test system.
3. Assembly stand.
4. Cold tests of pin carriers
5. Cranes
6. Models.
7. Procedures

A.  The weld tests were discussed first. I indicated Michel had telephoned
asking me to set up some vacuum tests for the welded flanges expected to come
from TRIUMF on November 24. A number of jobs were allocated. Some
are already completed so I will report them here.
1. Paul will discuss the exact dimensions with Roy and get the drawings.
2. Ian Bailey was suggested to get the leak tester going.

By Friday afternoon, Ian had the manuals from Pof. He has read them
and now understands the capability of the instrument. Margret and Paul
checked the roughing pump of the leak checker had oil in it. Ian had noted
this was a warning in the manual. Paul and I discussed possible stands.
He will build a stand that sits adjacent to the test instrument to hold the
flanges. He has found a suitable quick connect hose from my TMP system
that will link the flange to the tester.

Some care will have to be taken with the seals. I have been talking to Paul
and Ian about this.

It looks like there should be no problem to test the welds if Paul and Ian
make it a priority to get set up during this week.

B.   The vacuum test system is in good shape. The warm side is designed and
all the parts have arrived with the exception of a scroll pump and the warm
test platter. Paul is finishing the warm test platter design and will order
the parts. The scroll pump is not essential. We have two working turbo molecular
pump systems. Its purchase will be delayed.

     The cold side still has a number of unresolved issues. They are fully
understood and a conceptual design exists for all eventualities. Final
design and ordering of materials is waiting for the following:
1. Funnel diameter and length are not fixed. This impacts the exact size
of several components but does not change the overall conceptual design.
2. The size of the bucket is uncertain. We need the exact size of the pigtails.
More than one bucket size may have to be accomodated.

The vacuum test system is modular and flexible. It will be very useful
for prototype/model tests where some unplanned activities may be necessary.

The warm test setup could be assembled starting around December 1. Paul
thought this would make the best use of his time.

C.   The assembly jig conceptual design is done and looks very good.
It is based on a rotating gantry supported by a vertical member 
located on a moveable stand. The gantry allows rotation of 
the entire assembly from a vertical to horizontal position.
It also allows the assembly to rotate around its axis of 
"symmetry" ( the offset funnel is taken into account). This is
accomplished by using bearings to make a "lazy Susan" platter that
clamps to the funnel.There are some questions about the stability 
of the stand if the cable bucket is very large.

    It was agreed that Paul would start ordering the pieces for the stand,
the vertical pillar, the rotating gantry and the bearings for the turnable
clamp.

    A discussion of how the cables would be attached and how the bellows would
be put in place made us realize we WOULD NEED A DC TEST STATION.

D. The model needs the final drawings. 

E. Procedures were discussed to the extent of how the assembly stand will
work. It will be clearer when the gantry part of the stand is built. Similarly
constructed the warm test station will help hone some procedures.

The discussion ended when we ran out of time.
RKK