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Pure Breeze All-American Electrical Mfg. Co.  Rate Topic 
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 Posted: Fri Nov 8th, 2019 05:01 am
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Russ Huber
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 Posted: Fri Nov 8th, 2019 05:44 am
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Russ Huber
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Does anyone have this model? It is badged Pure Breeze on the guard.  It has a Dayton single phase 1/10th HP motor with 3/8" shaft.

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 Posted: Fri Nov 8th, 2019 11:04 pm
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Steven P Dempsey
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I have a fan with the same cast base, whirlwind

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 Posted: Fri Nov 8th, 2019 11:05 pm
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Steven P Dempsey
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 Posted: Sat Nov 9th, 2019 12:59 am
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Russ Huber
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Steven P Dempsey wrote: I have a fan with the same cast base, whirlwind




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 Posted: Sat Nov 9th, 2019 01:00 am
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 Posted: Sat Nov 9th, 2019 01:02 am
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 Posted: Sat Nov 9th, 2019 01:03 am
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 Posted: Sat Nov 9th, 2019 01:05 am
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 Posted: Sat Nov 9th, 2019 01:08 am
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Russ Huber
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 Posted: Sat Nov 9th, 2019 01:11 am
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Russ Huber
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Heavy Torrington blade....small under powered motor?





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Last edited on Sat Nov 9th, 2019 01:24 am by Russ Huber

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 Posted: Sat Nov 9th, 2019 02:55 pm
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Steven P Dempsey
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My blade is lightweight stamped aluminum - - this fans hot, to the pint where you can't touch the motor housing

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 Posted: Sat Nov 9th, 2019 06:31 pm
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Russ Huber
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Steven P Dempsey wrote: My blade is lightweight stamped aluminum.

Are you sure about that? My example has the same 20" three wing blade. The blade hub and large spider is heavy duty steel. The aluminum wings are 1/16" thick. 


Hold a Freshy composite 20" prop blade in one hand, and your Detroit model Whirlwind blade in the other, then tell determine which blade has less weight? 


My All American Electrical Mfg. Co. pure breeze has a larger diameter 1/10 HP Dayton/Grainger motor with the same 3/8" shaft as your smaller diameter fractional motor Detroit model, my motor grunts to get that 20" Torrington blade up to speed. :D 


It is a Walter Upson patented Torrington blade. My blade has 3 patents stamped into the spider.


https://patentimages.storage.googleapis.com/c9/6e/4d/d3317a1383a61b/US2072322.pdf




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Last edited on Sat Nov 9th, 2019 06:33 pm by Russ Huber

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 Posted: Sun Nov 10th, 2019 02:31 am
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Russ Huber
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Never panic, there is always an option for the big honkin 3 wing Torrington motor killer blade.  Remember, it is not your fault the Detroit Whirlwind fan makers couldn't do the math matching HP to blade weight and size. :D

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Last edited on Sun Nov 10th, 2019 02:55 am by Russ Huber

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 Posted: Sun Nov 10th, 2019 02:41 am
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Russ Huber
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The cast aluminum prop Air Master blade hub was drilled for a 1/2" shaft. Never panic. I tapped a snug fit 3/8" ID x 1/2" OD x 1" L bronze sleeve bearing into the hub hole with a rubber hammer. It fit in there like downtown. :clap: I then slipped a drill bit just undersized enough to not mess up the set screw threads and drilled a hole through the sleeve and chased it with a 1/4-20 tap.  

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Last edited on Sun Nov 10th, 2019 02:42 am by Russ Huber

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 Posted: Sun Nov 10th, 2019 02:57 am
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Russ Huber
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Here is one of those whimpy Detroit Whirlwind motors exposed.  :D

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 Posted: Sun Nov 10th, 2019 05:43 am
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Russ Huber
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In a nut shell, it was not my intention to ridicule the Detroit Whirlwind models. Actually, they are attractive fans with cool industrial design. If your model is running hot, or working hard to spin that big Torrington blade, you can reduce the motor's struggle with a Freshy Bakelite prop blade of equal diameter.

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 Posted: Sun Nov 10th, 2019 02:57 pm
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Steven P Dempsey
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What kinda HP will it take to push this?



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 Posted: Sun Nov 10th, 2019 05:15 pm
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Russ Huber
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Steven P Dempsey wrote: What kinda HP will it take to push this?




That is a early W. W. Grainger "Dayton"  blade.  

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 Posted: Sun Nov 10th, 2019 05:21 pm
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Russ Huber
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Using a Du bro dynamic blade balancer you could gradually sand down the wings and blade weight of a cast aluminum blade, yet maintain the integrity of the blade.  After the course grit sanding you just reduce to fine grit and then to the buffing wheel.

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Last edited on Sun Nov 10th, 2019 05:26 pm by Russ Huber

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 Posted: Mon Nov 11th, 2019 05:08 am
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Russ Huber
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Now it just needs a buffing wheel and polish.  :D















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Last edited on Mon Nov 11th, 2019 05:09 am by Russ Huber

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 Posted: Mon Nov 11th, 2019 05:16 am
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Alex Rushing
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Great fans, and nice work, Russ!

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 Posted: Mon Nov 11th, 2019 01:53 pm
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Steven P Dempsey
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Note the vent holes, I think mine could have benefited from those!

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 Posted: Tue Nov 12th, 2019 05:56 am
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Russ Huber
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Steven P Dempsey wrote: Note the vent holes, I think mine could have benefited from those!
There is no mention of the HP rating on your small fractional motor. I don't think increased venting would do much to reduce the heat your motor generates pushing that Torrington blade. Reducing the blade weight would help. A Freshy Bakelite blade would reduce stress on the motor. 

Last edited on Tue Nov 12th, 2019 05:56 am by Russ Huber

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