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Tapered Holes and a Source of Wind Pressure
By Dave Clark

Hi, A long, long time ago I gave a little introduction to a 28 key street organ
that I am building. I thought I would give you an update and pose a couple of
questions.

I have completed and tested the pump and pipe chest. Pallet return springs
were made, adjusted and installed (finally!). I assembled those 2 units and
everything works great. Now I have to complete the pouch board and the valve
and the player should be done (a couple of weeks). Then the ONLY thing left to
do is make the pipes and pipe holders. Which leads me to my questions:

1. The plans call for tapered holes on the pipe holders. I assume these can be
made with a tapered reamer but I'm not sure (I'm not a very experience
machinist). Any ideas? How tapered should they be?

 2. To test and voice the pipes I need a source of 6" of pressure. I could use
the organs pump itself but cranking and "fiddling" at the same time is not that
convenient. I would like to set up a little test fixture for the bench. Would
a pressure pump without a reservoir work (I'm trying to get away with as little
extra work as possible - I want to have the organ playing by 6/4/96)?

Dave Clark

********************************************¶
Dave Clark, IBM Corporation, Building 250-1/G001, Endicott, NY¶
Phone: 607-755-4969 Fax: 607-755-7915 Pager: 786-2722 Tie: 855¶
Internet: D CLARK@VNET.IBM.COM  VM ID: DCLARK at ENDVM1

(Message sent Mon, 22 Jan 96 15:06:39 EST , from time zone -0500.)

Key Words in Subject:  Holes, Pressure, Source, Tapered, Wind