DIYAPASON-L Digest #65 - Wednesday, March 22, 2000
 
Re:  [Residence Organs]  re: blower felt
  by <Melodyboy@aol.com>
Re: [Residence Organs]  blower felt
  by "John Vanderlee" <jovanderlee@vassar.edu>
Re: [Residence Organs]  blower felt
  by <Pipewheezr@aol.com>
 

(back) Subject: Re: [Residence Organs] re: blower felt From: <Melodyboy@aol.com> Date: Wed, 22 Mar 2000 05:01:17 EST   A friend of mine mounted his 3HP Spencer on good stiff springs. He bored holes into the wood craddle just large enough to insert the springs (with = a little friction against the spring and hole to keep it in place). He has = a total of 6 springs, 3 on each craddle.   The end result is VERY quiet, compared to other Spencers ive been around either sitting on the horsehair pads, carpeting, or some other material. = I just have a small 3/4HP Spencer, for which i had some old dense foam computer keyboard wrist rests that i put under it, and it still makes = more noise than his. When i get around to it, im going to try the spring = method, seems to work on his installation!   Best Regards!~ Cory Wright  
(back) Subject: Re: [Residence Organs] blower felt From: "John Vanderlee" <jovanderlee@vassar.edu> Date: Wed, 22 Mar 2000 09:42:44 -0500   >>Brian Wrote: > > >>I believe the Spencer literature states >>that the blower is to sit on "hair felt pads". >>One of the blower section drawings shows >>these pads and they appear to be REALLY >>thick, like maybe 2". What have you all used >>for this padding? I thought maybe I'd laminate >>several layers of thick "bulletin board" cork >>together for thick cork pads. Would this work?   I believe the idea behind the padding is for sound/vibration absorbtion. The originals are made from horsehair pads enclosed in a black fabric and are at least 3" thick. The legs of the wooden cradle rest on it.   We installed a 5 HP Spencer in our theater above the stage mgrs. office = but elected to use air cushioned shock mounts instead. Worked quite well..   As was noted, if the blower is properly balanced, there will be no vibration at all. That being the ideal case.   Spencer, incidentally, is still in business in Hartford, CT. and they were glad to balance our 1928 impellers for us back in 1993.   Regards   John V      
(back) Subject: Re: [Residence Organs] blower felt From: <Pipewheezr@aol.com> Date: Wed, 22 Mar 2000 10:21:05 EST   Here is a nother idea for the blower monting ,I went to cheapo depo( Home Depot) and found a large rubber floor mat ,I cut two parts out ,one for = the roto-phaze in my shop ,I work at home ,and another to go under the blower = .It seems to work well and the rubber has not deformed or gotten to thin .I = grind crankshafts and any vibrating in the floor can show up in the crankshaft . Dennis Allen