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David Hunter
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| Favorite Fan: | Emerson 24646 |
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Posted: Sun Aug 2nd, 2009 06:38 am |
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| I am hoping that this thread will become a definitive thread that will compare and contrast the 24646, 27646, and 29646. Perhaps some of you believe that one model is better than another. If so, please post your evidence, thoughts, and pictures here. Last edited on Sun Aug 2nd, 2009 06:43 am by David Hunter
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Russ Huber
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Posted: Sun Aug 2nd, 2009 04:20 pm |
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David Hunter wrote: I am hoping that this thread will become a definitive thread that will compare and contrast the 24646, 27646, and 29646. Perhaps some of you believe that one model is better than another. If so, please post your evidence, thoughts, and pictures here.
Just some changes primarily in design David. Form and function they are pretty much like math. All three fans are 4 pole motors. If you are seeking a motor of slower RPM maybe a 6 pole motor Emerson table fan is the fan for you?  They called them the residentials and the more poles the lower the RPMS between speed changes. The cheaper 6 poles are like the 24666,27666, 29666......17-20s. I have a very nice 29666 that can run for hours and her big motor barely gets luke warm. I think the peak RPMS on high are around 1150 as compared to the 4 pole models at 1600-1750 on high? Last edited on Sun Aug 2nd, 2009 04:20 pm by Russ Huber
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David Hunter
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Posted: Sun Aug 2nd, 2009 04:39 pm |
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| Russ, thank you for the information Russ. Yes, as you know by now, I have said elsewhere that my 24646 is running fast and loud and so I am in search of a Variac. Yet, this is not why I started this thread. I am now fairly educated at to the parts in my fan and I'm not so certain what differences there are in the other fans. For instance, I know the 24646 has a cast iron hub and handle. The 29646 has a stamped steel hub and handle. I am sure that there are dozens of small differences and I am interested in finding out what they are. The reason why I would like to know is just to educate myself a little more and perhaps make a list of the differences. I am just fascinated by these fan models. I also know that even within models, parts were carried over into them until the parts ran out and new ones could be made. So even within the same model, differences will occur. Last edited on Mon Aug 3rd, 2009 02:23 am by David Hunter
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Geoff Dunaway
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Posted: Sun Aug 2nd, 2009 05:43 pm |
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| There are a slew of differences in the 24xxx series as Emerson transitioned from the 21xxx to the 27xxx. Those differences will be an article some day in the FanCollector magazine. Meanwhile , the best way to compare and contrast is to own one of each !! Happy Hunting happy fan collector
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Steve Stephens
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| Favorite Fan: | Peerless bipolar |
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Posted: Sun Aug 2nd, 2009 07:58 pm |
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24646
1. Smaller diameter cast base with rubber feet that some say is not stable. It looks nicer I think than the 27 and 29 fans.
2. More varietty with cast hub blade (stamped on latest 24s?), steel or brass cage.
3. Higher cast or forged steel handle.
4. Harder to find these fans.
5. Original oscillator ball detent survives on some fans but is made of crummy pot metal. Later osc. adjuster wheel is better in all respects but the fans were made with the ball detent one.
6. Nice looking cast in numbers on base for the three speeds.
7. Flat brass blades with no curvature.
8. Stamped badge on early models replaced by etched badge.
9. No matching non-oscillating model
27646
1. More common than 24 but much less common than the 29.
2. Still has the nicer cast or forged carry handle of the earlier models
3. Black painted blade hub nicer looking (opinion) than gold painted on 29
4. Early (and I think hard to find) bases used the nice cast in speed numbers followed by depressing depressions for stamped gold letters which are almost always worn away.
5. Blades still devoid of gold paint used on 29 models.
6. Flat brass blades with no curvature.
7. Etched cage badge.
8. Brass extra grommet where headwire enters motor. Usual bakelite gromet screws into the brass one which is deeper.
9. Matching non-oscillating model (26646)
29646
1. So common that everyone has one and Tom N. has the rest.
2. "Screen door" carry handle on early ones where your paws have to be small to get your fingers under the handle. Later 29s used a better sized folded steel carry handle that works well.
3. Gold printed speed numbers on base usually worn off.
4. Etched badge on earlier models and Built To Last badges on later ones.
5. Steel blade painted black on latest versions but most will have their brass blades painted with not-too-pretty gold paint.
6. Flat brass blades with no curvature replaced by "Improved" Parker curved blade when Built to Last badge replaced the etched badge.
7. Motor is supposedly better and/or draws less power. I don't think you'll notice this.
8. Later versions have a removable plate where headwire enters motor making for easier headwire replacement.
9. Matching non-oscillating model (28646)
What about the similar but later and 73646? Maybe it should be included here. I've never had one and don't know the differences but they look like the 29 series in many ways but with improvements. Last edited on Sun Aug 2nd, 2009 09:42 pm by Steve Stephens
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David Hunter
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Posted: Sun Aug 2nd, 2009 08:12 pm |
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| I knew you would come through with flying colors Steve. Thanks. I wonder if there are other differences between these fans that you did not mention. I recall you saying at one time that you thought that the motor might be better in the 29646 than the other models. Maybe there are some other internal differences as well.
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Steve Stephens
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Posted: Sun Aug 2nd, 2009 08:21 pm |
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| I bet there are a number of other differences. Those who tear into these fans would know. I rarely get into my fans so far.
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Russ Huber
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Posted: Sun Aug 2nd, 2009 09:15 pm |
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Steve Stephens wrote: Those who tear into these fans would know. I rarely get into my fans so far.
Liar, you teared into those three. 
Psssssst.....each of the cast pieces have their own identification number. 
Last edited on Sun Aug 2nd, 2009 09:18 pm by Russ Huber
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David Hunter
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Posted: Sat Oct 10th, 2009 04:21 pm |
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I have another question for all of you Emerson experts out there. I am trying to find when these fans started to be manufactured. Please let me know if you have any ideas. This is what I have so far:
24646 - 1917
27646 - ?
29646 - 1922
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Steve Stephens
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Posted: Sat Oct 10th, 2009 05:15 pm |
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David,
Based some on this-
http://www.fancollectors.org/info/mbr/em44.pdf
I would say the 27646 was made 1919-21 or 22. It's a bit strange that document does not include the 27646 fans but their close relatives were built in those years.
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David Hunter
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Posted: Sun Oct 11th, 2009 09:08 pm |
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| Can anyone prove that the phenolic resin switch on the later 27 and 29 fans is made from bakelite? There are a couple of tests for bakelite. If you run hot water over bakelite for 30 seconds and then smell it, it should smell like shellac. Another test is to take "simichrome" metal polish and polish the bakelite with a Q-tip. If the Q-tip turns yellow, it is bakelite. Unfortunately, I don't have a switch to test this theory out on.
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Russ Huber
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Posted: Sun Oct 11th, 2009 09:27 pm |
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| David, I have your email here and have not been been in my work area today. You could make this simple. Just use "made of early plastic" in your description. I promise, you will not get any letters in the mail demanding the exact chemical composition of the composite.
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Bill Voigt
AFCA Member
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Posted: Sun Oct 11th, 2009 11:37 pm |
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David - the switchover from a ceramic switch base to one of "composition"
material was at the introduction of the 28 and 29 series fans when the
motor / starting reactor windings and connections were changed to a design
having higher electrical efficiency i.e. lower watts in for the same hp out.
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David Hunter
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Posted: Mon Oct 12th, 2009 02:59 am |
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I now think the switches are indeed Bakelite. Tom Newcity took Wenol to a switch and brown color came off. This is what I found afterwards in my search:
While there are plastic polishes out there, I heartily recommend two products, both very similar. They are both silver polishes, both pinkish pastes that come in tubes. One is Wenol, and the other is Simichrome.
Just put a little dab on a cloth and rub to polish the baketlite and bring back the original shine.
Its also good for testing to see if the material is indeed bakelite, because if it is, during this polishing the rag will turn brown, whereas other plastics won't do that.
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