DIYAPASON-L Digest #269 - Tuesday, February 27, 2001
 
Spencer blower question
  by <JFick@aol.com>
storing pipe organs (was Re: Shipping Containers...)
  by <Ed_Stauff@avid.com>
Re: [Residence Organs]  Spencer blower question
  by <GRSCoLVR@aol.com>
Re: [Residence Organs] Haskelled pipes
  by "steve c bournias" <chrisbournias@hotmail.com>
Re: [Residence Organs]  16' open to 32' stopped
  by "Hugh Knapton" <knapton@superaje.com>
Re: [Residence Organs]  Shipping Containers for Organ Storage???
  by "Hugh Knapton" <knapton@superaje.com>
Re: [Residence Organs]  Spencer blower question
  by "Ed Steltzer" <steltzer@gwi.net>
Re: [Residence Organs]  Spencer blower question
  by "DanielW Hopkins" <danielwh1@ns.sympatico.ca>
 

(back) Subject: Spencer blower question From: <JFick@aol.com> Date: Tue, 27 Feb 2001 09:21:59 EST   I recall some questions several months ago regarding the whine produced by = the repulsion starter brushes on Spencer blowers.   I have a 1/2 HP Spencer blower that runs (and whines) for awhile and = finally gets out of start mode ONLY if one blocks off the outlet (as would = an organ when finally pressurized.)   My question is this: As a reference, how long should the motor take to = get to full speed when the outlet is blocked immediately? Should it ever = get to run speed if it free flows from the start? (I realize that it's = not meant to free flow and that it places an excessive load on the = motor...indeed, at 220V it goes from 3 amps during no flow to 6 amps free = flow.) I'm just trying to get an idea of the health of the motor.   With thanks,   Jon Fick Westford, Vermont  
(back) Subject: storing pipe organs (was Re: Shipping Containers...) From: <Ed_Stauff@avid.com> Date: Tue, 27 Feb 2001 09:30:41 -0500       I hope to start collecting parts for my future hausorgel sometime this year. The building that it will live in will not even be built for about 2 years, and it will likely be a few years after that before installation is anything like complete. I have a number of realistic storage options:   1. An unheated, uninsulated two-car garage (cement floor) 2. An unfinished basement in my (heated) house (floor mostly cement, some dirt) 3. A finished (more or less heated) attic (access through two flights of winding stairs) 4. Rent a storage cube of the usual indoor, unheated sort (no power)   I suppose that heated indoor storage can be rented, but I also suppose it will be prohibitively expensive. Based on your experience, which of these storage options should I consider for the various parts of the organ (wood pipes, metal pipes, chests, reservoirs, etc.)? What relatively low-cost modifications could I make to these storage options to make them more suitable, such as adding a humidifier or dehumidifier, putting a plastic tarp over the top to protect against possible roof leaks, heating the space, etc.?   Thanks muchly,   -- Ed   #=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D#=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D#=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D# | Ed Stauff, principal software eng. | I don't speak | "Specialization | | Avid Technology, Tewksbury MA, USA | for Avid, nor | is for insects." | | "ed_stauff#@#avid.com" (remove #'s) | vice versa. | -- Lazarus Long | #=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D#=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D#=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D#      
(back) Subject: Re: [Residence Organs] Spencer blower question From: <GRSCoLVR@aol.com> Date: Tue, 27 Feb 2001 10:57:28 EST   Hi Jon--- Having dealt with Spencer and Kinetic blowers for half a century, heres = what I have learned about the situation you describe. I would not expect the motor to ever get off its starting windings with a completely unblocked outlet, and I would expect the current draw to = increase dramatically when at run speed IF the discharge line were to be totally opened. In my opinion,,the time for a Century motor to come up to speed is based = on many variables such as bearing condition and viscosity of oil in the = bearings to name just two, to the point that I do not think one can draw any meaningful conclusions from that kind of a test. However, should the motor NOT get off its start windings on blocked = outlet, its then time to disassemble the motor and clean everything of the dried = gum and "varnish" that builds up, especially in the "necklace" area inside the =   rotor assembly. In addition to lifting the brushes in run situation,,the copper "necklace" by centrifugal force, must short out all the rotor = windings inside the rotor, thus turning the motor into essentially a squirrel cage rotor running by induction. Hope this helps,,,,, Cheers, ---Roc L V Rockafellow  
(back) Subject: Re: [Residence Organs] Haskelled pipes From: "steve c bournias" <chrisbournias@hotmail.com> Date: Tue, 27 Feb 2001 13:57:23 -0500   probably made by Aeolian-Skinner but definetly voiced by head voicer John = H Hendriksen because he told me so personally....Steve Bournias   >From: 4everaptor <JABowers@execpc.com> >Reply-To: "Residence Organ List" <DIYAPASON-L@pipechat.org> >To: Residence Organ List <DIYAPASON-L@pipechat.org> >Subject: [Residence Organs] Haskelled pipes >Date: Mon, 26 Feb 2001 17:17:31 -0600 > >Interestingly enough, the Aeolian Skinner, opus number 1477 from 1969, >which is in the performing arts center in Milwaukee has a Haskelled >32' Sub Principal. However, I dont' know who made the pipes. This organ >is on an elevator and is stored under the stage when not in use. > >John > > >Jon Calvo wrote: > > > Did Haskell ever make a Haskell 16 ft bass . . . > > john > > > > >DIYAPASON-L: a Discussion list for owners and builders of their own >Residence Pipe Organs. >HOMEPAGE : http://www.diyapason.pipechat.org >List: mailto:DIYAPASON-L@pipechat.org >Administration: mailto:owner-DIYAPASON@pipechat.org >   _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com    
(back) Subject: Re: [Residence Organs] 16' open to 32' stopped From: "Hugh Knapton" <knapton@superaje.com> Date: Tue, 27 Feb 2001 14:05:44 -0500   At 6:25 PM -0500 2/25/01, Robert Pelletier wrote: >A few days ago, there was a discussion on converting >16' open woods to 32' stopped pipes. One recurring >comment was that the bottom 3-4 pipes might be too >short to allow for a tuning cap. Has anyone tried making >32' rohrflutes instead of 32' bourdons? Maybe the chimney >could provide the extra speaking length?   In my travels I missed this...   Rather than attempt a 32' Rohr Flute, I would recommend that you build "elongated internal cannisters" ... depending upon scale the cannister can be built to provide up to 2 (even 3) semi-tones of leeway. A variety of mouth adjustments/modifications may also be required.   details can be required if needed.   Hugh  
(back) Subject: Re: [Residence Organs] Shipping Containers for Organ Storage??? From: "Hugh Knapton" <knapton@superaje.com> Date: Tue, 27 Feb 2001 14:12:49 -0500   At 8:53 PM -0500 2/25/01, Alwyn V. H. Farey-Jones wrote: >I was wondering whether it would be practicable to have the organ shipped = in >a standard shipping container and then just keep the organ, still in the >shipping container, on site for a few months.   If an organ is to be stored in a shipping container for an extended period of time it is essential that it be able to "breathe" .... do not have it entirely sealed, and try to keep it from high temperature (and humidity) extremes.   Once it can be "uncrated" ... allow it the longest time possible to acclimatize to it's new surroundings before adjusting anything or depending upon it.   Hugh    
(back) Subject: Re: [Residence Organs] Spencer blower question From: "Ed Steltzer" <steltzer@gwi.net> Date: Tue, 27 Feb 2001 14:34:55 -0500   My 1/2 HP Spencer does quite the same thing; resists getting out of start mode. Sometimes I have to shut it down and try again. Your comment about blocking the outlet is interesting; never experimented with that.   My belief is that the problem is friction in the mechanism which kicks out the starting brushes. That mech. is inside the rotor, and hard to get at to lubricate. As the motor comes up to speed, the centrifugal weights have to overcome that friction to pop out the brushes.   Ed, in Maine   ----- Original Message ----- From: <JFick@aol.com> To: <DIYAPASON-L@pipechat.org> Sent: Tuesday, February 27, 2001 9:21 AM Subject: [Residence Organs] Spencer blower question     > I recall some questions several months ago regarding the whine produced = by the repulsion starter brushes on Spencer blowers. > > I have a 1/2 HP Spencer blower that runs (and whines) for awhile and finally gets out of start mode ONLY if one blocks off the outlet (as would an organ when finally pressurized.) > > My question is this: As a reference, how long should the motor take to get to full speed when the outlet is blocked immediately? Should it ever get to run speed if it free flows from the start? (I realize that it's = not meant to free flow and that it places an excessive load on the motor...indeed, at 220V it goes from 3 amps during no flow to 6 amps free flow.) I'm just trying to get an idea of the health of the motor. > > With thanks, > > Jon Fick > Westford, Vermont > > DIYAPASON-L: a Discussion list for owners and builders of their own > Residence Pipe Organs. > HOMEPAGE : http://www.diyapason.pipechat.org > List: mailto:DIYAPASON-L@pipechat.org > Administration: mailto:owner-DIYAPASON@pipechat.org > >    
(back) Subject: Re: [Residence Organs] Spencer blower question From: "DanielW Hopkins" <danielwh1@ns.sympatico.ca> Date: Tue, 27 Feb 2001 18:12:31 -0400   My 1hp Century Motor on my Casavant Blower.Takes about 10 seconds before getting out of Starting mode Is that good or bad??? Danielwh '2000' E.P. Biggs Fellow