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 Posted: Mon May 14th, 2018 12:06 am
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William Dunlap
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Since I got my first GE pancake and realized it was a single bearing motor not too unlike the highly touted Emerson single bearing motor, I've begun to wonder just who was the greatest innovators among the fan manufacturers.
My GE 55X164 is full of innovations not the least of which is the aluminum overlapping blade with the bullet nose.
It seems to pre-date the Emerson Silver Swan by a couple of years.

Who had the first really practical gear driven oscillator?  And so on.

Any opinions or documentation about who led the industry in innovation?

Cheers,
Bill


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 Posted: Mon May 14th, 2018 01:38 am
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Russ Huber
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William Dunlap wrote: Since I got my first GE pancake and realized it was a single bearing motor not too unlike the highly touted Emerson single bearing motor, I've begun to wonder just who was the greatest innovators among the fan manufacturers.
My GE 55X164 is full of innovations not the least of which is the aluminum overlapping blade with the bullet nose.
It seems to pre-date the Emerson Silver Swan by a couple of years.

Who had the first really practical gear driven oscillator?  And so on.

Any opinions or documentation about who led the industry in innovation?

Everybody has an opinion.  :D  Your questions cover a broad spectrum.  The Emerson hollow hardened steel shaft is kind of in a class by itself.  The facts are you have a machined cast iron surface(rotor) riding on hardened steel shaft. Both surfaces machined to proper tolerance. The hole machined in the center of the rotor has two surfaces front and back for the rotor to ride the shaft.  If the rear cast iron bearing surface on the rotor wears significantly the Emerson will offer a sweet chatter for your ears. :D

Look what Robert Lundell designed in 1892 for his boss Edward Johnson formally of Bergmann & Co. established in 81. The following year of 93 Lundell had oil cups and self adjusting bearings. Lundell set the standard for fan motor design well ahead of the rest of the best.  

Robert Lundell was a highly disciplined no nonsense Swede.  His AC fan motor internal design offered in 95 would give you brain cramps. :D

Emerson had luck on their side that Alexander Meston was able to at least establish his AC fan motor design before contracting Tuberculosis.  Charles Meston was a pencil pusher during those critical years from 91-93.  Both Charles and Alexander contracted TB. Alexander was more frail than his brother Charles. Charles pulled out of it while Alexander succumbed to TB April of 93. Alexander had one year of college education on small AC single phase motors from 89 into 90. He was dead at the age of 26-27. Those common made by the thousands top of the line 29646s were the result of years of trial and error from Emerson engineers.


All those 90s AC fan motors from Emerson, Wagner, Ries, etc. were noise making work in progress.


The 90s H-Cs were classy machines.  Eddie Pillsbury had his paws on them.


Eck finally caught up with Lundell in 99.  :D






Attached Image (viewed 319 times):

Lundell92.png

Last edited on Mon May 14th, 2018 01:53 am by Russ Huber

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 Posted: Mon May 14th, 2018 05:59 am
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Jan Hendriks
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Russ,
Interesting use by veritys', of  complete Lundell fans before they made there own fans.
     Australian sales  :D    







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 Posted: Mon May 14th, 2018 07:04 am
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William Dunlap
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Interesting. The first ad proclaims ball bearings while the second claims self oiling bearings. Are these the same? How do you make a self oiling ball bearing?
One thing I do know about ball bearings is that, while they are capable of large loads, they aren't so quiet. With just a small amount of wear they sound like marbles in a coffee can.

Cheers,
Bill

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 Posted: Mon May 14th, 2018 06:31 pm
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Russ Huber
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William Dunlap wrote: Interesting. The first ad proclaims ball bearings while the second claims self oiling bearings. Are these the same? How do you make a self oiling ball bearing?
One thing I do know about ball bearings is that, while they are capable of large loads, they aren't so quiet. With just a small amount of wear they sound like marbles in a coffee can.

Cheers,
Bill

The ball bearing Lundell fan motor was his first introduced in 92. That model only had a one season run. Lundell offered his 92 fan motor in desk, bracket mount feature, and ceiling hung circulator.  I would imagine a few thousand were manufactured for the 92 season.


Quality SEALED greased ball bearings of TODAY have reasonable longevity and run quiet. A set of quality sealed ball bearings for a circulator can set you back $30-$50.


In 1893 Lundell offered the same fan motor design now with oil cups and self adjusting bearings. 


Keep in mind Robert Lundell was employed by former Bergmann & Co. Edison loyal Edward Johnson. So Lundell like Johnson were loyal Edison DC nuts.  Just think what Bob Lundell may of come up with for a 92 fan motor if he would of been under the roof of Westinghouse/Tesla system?  Lundell was not only educated electrically, he had a keen sense for design. 





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 Posted: Tue May 15th, 2018 04:42 am
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Jan Hendriks
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"The ball bearing Lundell fan motor was his first introduced in 92. That model only had a one season run. Lundell offered his 92 fan motor in desk, bracket mount feature, and ceiling hung circulator.  I would imagine a few thousand were manufactured for the 92 season."


maybe another verity used ? ceiling hung?
   White Wings  





These photo copies I received only in the last week  ,great to see but lacking in clarity






sorry,seems the sideways ..is taking over.  pics were cropped first 






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 Posted: Tue May 15th, 2018 05:12 am
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Russ Huber
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Lundell "White Wings" designed for low studded ceilings was introduced to the market in 2 sizes in...........96.


No one to the best of my knowledge owns an early Lundell desk fan.  92-94 models have a switch lever protruding out from the base under the blade.

Last edited on Tue May 15th, 2018 05:20 am by Russ Huber

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 Posted: Tue May 15th, 2018 06:48 pm
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Russ Huber
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The Westinghouse(Tesla) single and dual speed fan motors introduced in 95-96. The Tesla Westinghouse fan motor was designed to start rotor rotation without the use of Hassler's patented motor shades listed on the tag.  :tumbs 

 Be it known that I, NIKOLA TESLA, a subject of the Emperor of Austria-Hungary, from Smiljan, Lika, border country of Austria-Hungary, residing at New York, in the county and State of New York, have invented certain new and useful Improvements in Electro-Magnetic Motors, of which the following is a specific reference being, had to the drawings to companying and forming a part of the same.
Among the various forms of alternating current motors invented by me is one which I have described in other applications, and which is constructed as follows: I build a fieldi5 core with, say, four poles, between which is mounted an armature that is generally wound with closed coil s. On two of the opposite poles of the field I wind primary coils, which are connected up in the main circuit. On the same cores 1 also wind secondary coils, which primary current, and hence a rotation or shifting of the poles is effected that imparts rotation to the motor.
These motors may be constructed in many other ways; but for purposes of this case it is only necessary to consider the specific form which I have thus generally described, as my improvements relate mainly to such form.
The object of my present invention is to render this form of motor more efficient and to improve its action or mode of operation.
In the motors constructed in accordance with this principle I bring two energizing circuits into inductive relation in the motor itself that is to say, the secondary currents which energize one set of the field-cores are 5 induced in the motor itself, and the employment of an external induction device is thus avoided. The operation of these motors however, is dependent upon the existence of a certain difference of phase between the currents in the primary and secondary coils. To obtain a difference of phase or lag that is since the same laws apply.

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Teslamotor.png

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