DIYAPASON-L Digest #271 - Thursday, March 1, 2001
 
Spencer blower problem resolved
  by <JFick@aol.com>
Re: [Residence Organs]  Spencer blower problem resolved
  by "John Vanderlee" <jovanderlee@vassar.edu>
Re: [Residence Organs]  Spencer blower problem resolved
  by "Eric Sagmuller" <ess4@psu.edu>
Re: [Residence Organs]  When load is too much to start -- was:  Spencer b
  by "Bernard C. Nordmann" <bcnordmann@cdmnet.com>
RE: [Residence Organs]  Unknown organ player
  by <mblackwell@wallace.com>
Re: [Residence Organs]  Spencer blower problem resolved
  by "Bob Loesch" <rrloesch@jps.net>
Pipe Organ Damage update
  by "DanielW Hopkins" <danielwh1@ns.sympatico.ca>
 

(back) Subject: Spencer blower problem resolved From: <JFick@aol.com> Date: Thu, 01 Mar 2001 10:54:08 EST   Many thanks for the Spencer blower info and benchmark observations.   It turned out that my blower had a hanging brush; it was stuck in the = retract position. Once disassembled, cleaned, and adjusted according to = the Century motor manual, it seems to start fine as long as the outlet is = at least partially blocked off.   The 1899 patent date stamped on the motor makes the word "Century" apt!   On a slightly different note, has anyone tried to replace a 1/2 HP Century = motor (huge by today's standards) with a modern motor? "Continuous duty" = factors may come into play here...the large size of this old motor may = actually be a plus.   Thanks.   Jon Fick Westford, Vermont  
(back) Subject: Re: [Residence Organs] Spencer blower problem resolved From: "John Vanderlee" <jovanderlee@vassar.edu> Date: Thu, 01 Mar 2001 11:29:29 -0500   > >On a slightly different note, has anyone tried to replace a 1/2 HP = Century >motor (huge by today's standards) with a modern motor? "Continuous duty" >factors may come into play here...the large size of this old motor may >actually be a plus. > >Thanks. > >Jon Fick >Westford, Vermont   Jon, If I know anything about these blower motors it was that engineering was done by brute force, rather than calculating them to be "just right and no more". It seems that an ounce of extra went into all the designs, for no other reason than just to make sure things would last. (Ah those were the days..) It seems that with routine maintenance and as long as you don't violate the electrical limits, they'll do just that - last and last and last. So why would you want to replace it?   Just my 2 Watts worth...   John V      
(back) Subject: Re: [Residence Organs] Spencer blower problem resolved From: "Eric Sagmuller" <ess4@psu.edu> Date: Thu, 1 Mar 2001 12:03:12 -0500   At 10:54 AM -0500 3/1/01, JFick@aol.com wrote: > >On a slightly different note, has anyone tried to replace a 1/2 HP >Century motor (huge by today's standards) with a modern motor? >"Continuous duty" factors may come into play here...the large size >of this old motor may actually be a plus.   My 1hp Spencer has a modern GE Capacitor start motor on it. Somehow I don't think it is original to the blower though, as when I contacted Spencer with the blower serial number they told me it was built in 1938. Capacitor motors didn't come on the scene till much later.   With the outlet wide open the blower will kick into the run winding, but draw about twice the normal run current. That is typical for a good, modern, industrial motor, as they will deliver about twice the rated horsepower at near full speed, but only for a short period without overheating.   With the outlet connected to the organ in normal use, the blower is quite quiet for its size. I think the Repulsion motors are generally noisier, but draw a more moderate starting current. As my blower is connected to 230V the lights in the house dim very little at starting. The 115V connection would definitely be much more noticeable.   Eric       >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] When load is too much to start -- was: Spencer blower question From: "Bernard C. Nordmann" <bcnordmann@cdmnet.com> Date: Thu, 01 Mar 2001 11:53:47 -0600   At 02:34 PM 2/27/01 -0500, Ed Steltzer wrote: > > 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?   Sidebar: For several years, my blowers were not in the enclosure I later put around them in my unheated garage. To get the one blower (without a snood -- the horizontal chimney) to start, I'd place a metal garbage can lid over the intake. I left a small opening -- otherwise I couldn't pull the lid off after the blower was up to speed!   This got me by until I enclosed and heated the blowers. CAUTION: If you need to do this, check the operating current after the blower is up to speed, to make sure you're not over the maximum specified on the motor = name plate.     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Bernie Nordmann, St. Louis, MO -- Owner of a 3/13 Wurlitzer/Barton/Kimball/Dennison/whatever -- Registered Piano Technician, Piano Technicians Guild -- Full time computer consultant - Nordmann Consulting, Inc. -- Amateur radio operator, call sign KV0W -- Husband, father ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~    
(back) Subject: RE: [Residence Organs] Unknown organ player From: <mblackwell@wallace.com> Date: Thu, 1 Mar 2001 14:35:06 -0600   Try asking over at MMD (www.foxtail.com). There's quite a bit of accumulated knowledge there about things "player".   Mike B  
(back) Subject: Re: [Residence Organs] Spencer blower problem resolved From: "Bob Loesch" <rrloesch@jps.net> Date: Thu, 01 Mar 2001 15:52:53 -0800   At 10:54 03/01/2001 EST, JFick@aol.com wrote: >has anyone tried to replace a 1/2 HP Century motor (huge by today's standards) with a modern motor? "Continuous duty" factors may come into play here...the large size of this old motor may actually be a plus.     Hi Jon. I've never had a Spencer that small, but I replaced the motor on = a 5 hp. I had to make a shaft the proper diameter and get two pedestal bearings to support the ends of the shaft, and install a Lovejoy coupling between the new motor and the shaft. It works quite well. The only critical thing is to be certain that the replacement shaft and the new motor shaft are in line.     Regards, Bob, in beautiful Lake County, California, USA NAWCC 140818 http://www.jps.net/rrloesch alternate mailto:cuckoobob@eudoramail.com    
(back) Subject: Pipe Organ Damage update From: "DanielW Hopkins" <danielwh1@ns.sympatico.ca> Date: Thu, 01 Mar 2001 23:39:16 -0400   Reports are still coming in but here is what we know so far. The organ at Trinity church was damaged, I am unsure how badly. The St. Mark's = Flentrop organ was heavily damaged, many of the pipes fell down thru the case crushing some of the tracker action. I will forward your request for information to Roger and see if he has any more to add.   Thank you,   Sarah Holberg Loft Recordings