AFCA Forums Home
Home Search search Menu menu Not logged in - Login | Register

 Moderated by: Steve Cunningham, Rod Rogers, Larry Hancock Page:  First Page Previous Page  1  2  3   
New Topic Reply Printer Friendly
Sturtevant #8 Propeller Fans...  Rate Topic 
AuthorPost
 Posted: Sat Jan 6th, 2018 02:25 am
  PMQuoteReply
81st Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Mel Lagarde wrote: David,

Yes, a few of my early fan motors were wound for 133 hz and 100-120 volts.  They can be run through a variac at reduced voltage if you are honor the ratio of hz to volts.   Most of us run them at half voltage (and therefore half speed) to reduce to the 60hz supply.  


Very interesting indeed. I believe it would be easy to build a power box containing a VFD and suitable transformers to plug into 120V 60 Hz, and end up with 133 Hz output.  I wasn't able to test using the VFD with one output disconnected, however I will do that and get back to you. If I can, I may bring a test device with me next time I come to Louisiana and we could test your fan at rated voltage and frequency. :clap:


Back To Top PMQuoteReply  

 Posted: Sat Jan 6th, 2018 02:36 am
  PMQuoteReply
82nd Post
Mel Lagarde
AFCA Member


Joined: Sat May 21st, 2016
Location: New Orleans , Louisiana USA
Status: 
Offline
David,
Sounds like a perfect plan.  This is also the answer for many of us that would like to run these high frequency fans at speeds higher than 50% speed.  Nice for a decorative speed but would like to see these fans perform as they should. 

I’ll buy the parts if you are up for putting it together.  That would make a cool video as well. 

Stay warm, much too cold for New Orleans. 

Mel

Back To Top PMQuoteReply

 Posted: Sat Jan 6th, 2018 03:10 pm
  PMQuoteReply
83rd Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Mel Lagarde wrote: David,

Sounds like a perfect plan.  This is also the answer for many of us that would like to run these high frequency fans at speeds higher than 50% speed.  Nice for a decorative speed but would like to see these fans perform as they should. 



I’ll buy the parts if you are up for putting it together.  That would make a cool video as well. 



Stay warm, much too cold for New Orleans. 



Mel


Are there any good threads on these 133 Hz fans? Are there other frequencies used that you know of?

Yep, I'm with you on the weather. It can go away now. Enough winter.

Back To Top PMQuoteReply  

 Posted: Sat Jan 6th, 2018 03:39 pm
  PMQuoteReply
84th Post
Richard Daugird
AFCA Member
 

Joined: Tue Sep 12th, 2017
Location: Texas City, Between Hou. & Galveston, Texas USA
Status: 
Offline
That was a great video on the VFD. Thanks for that. A have a milling machine 220 3 phase running off 110 single phase with a VFD. Works great.

Back To Top PMQuoteReply

 Posted: Sat Jan 6th, 2018 03:39 pm
  PMQuoteReply
85th Post
Richard Daugird
AFCA Member
 

Joined: Tue Sep 12th, 2017
Location: Texas City, Between Hou. & Galveston, Texas USA
Status: 
Offline
That was a great video on the VFD. Thanks for that. A have a milling machine 220 3 phase running off 110 single phase with a VFD. Works great.

Back To Top PMQuoteReply  

 Posted: Sat Jan 6th, 2018 03:39 pm
  PMQuoteReply
86th Post
Richard Daugird
AFCA Member
 

Joined: Tue Sep 12th, 2017
Location: Texas City, Between Hou. & Galveston, Texas USA
Status: 
Offline
That was a great video on the VFD. Thanks for that. A have a milling machine 220 3 phase running off 110 single phase with a VFD. Works great.

Back To Top PMQuoteReply

 Posted: Sat Jan 6th, 2018 03:47 pm
  PMQuoteReply
87th Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Richard Daugird wrote: That was a great video on the VFD. Thanks for that. A have a milling machine 220 3 phase running off 110 single phase with a VFD. Works great.
Thanks Richard. Glad you liked it! Hope it helps others as well.:D

Back To Top PMQuoteReply  

 Posted: Sun Jan 7th, 2018 02:32 am
  PMQuoteReply
88th Post
Mel Lagarde
AFCA Member


Joined: Sat May 21st, 2016
Location: New Orleans , Louisiana USA
Status: 
Offline
Hi David,
There are several threads and all are helpful as usual.  Basically two options, run the fan through a variac and reduce the current by half to reduce the hz to around 60.  A few members have suggested a VFD but I have not figured how to wire the 240 volt three phase to single phase without saturating the induction of the windings.   

You mention the PWM chop and I figured I could step it through a transformer to smooth the wave cycle.  But this get too complicated for me when I should run the fans at half speed and enjoy them.  
I like the challenge though.  I have not seen this done so was wondering if you could figure something out.  

Mel



Back To Top PMQuoteReply

 Posted: Sun Jan 7th, 2018 02:36 am
  PMQuoteReply
89th Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Mel Lagarde wrote: Hi David,

There are several threads and all are helpful as usual.  Basically two options, run the fan through a variac and reduce the current by half to reduce the hz to around 60.  A few members have suggested a VFD but I have not figured how to wire the 240 volt three phase to single phase without saturating the induction of the windings.   



You mention the PWM chop and I figured I could step it through a transformer to smooth the wave cycle.  But this get too complicated for me when I should run the fans at half speed and enjoy them.  

I like the challenge though.  I have not seen this done so was wondering if you could figure something out.  



Mel












Mel, I was definitely able to make the 160 series Allen-Bradley drive work providing single-phase power. It does not give error or trip when one output line is open.  Using a transformer on the output side of the VFD, I successfully created 133 Hz 120V power. Using the same setup I was also able to create 60 Hz 120V power and run a normal fan motor.

Will have to get together and test your 133 Hz fan sometime. I am very confident it will work!

Back To Top PMQuoteReply  

 Posted: Sun Jan 7th, 2018 03:18 am
  PMQuoteReply
90th Post
Mel Lagarde
AFCA Member


Joined: Sat May 21st, 2016
Location: New Orleans , Louisiana USA
Status: 
Offline
Count on it.  We need to meet soon. 
You did it!   I just knew you could!!!! You rock!  I

Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 02:03 am
  PMQuoteReply
91st Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Hey a late update on the Sturtevant fans! 

After several harrowing weeks at work, I have finally got the stain/varnish on these box fans!

The color is Minwax Poly Shades "Pecan Gloss" which is much lighter than the stain used on my 12 inch Ilg box.


From the front....


From the back...


And the obligatory Action Shot!





Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 02:38 am
  PMQuoteReply
92nd Post
Russ Huber
AFCA Member


Joined: Mon Nov 14th, 2005
Location: Southwest, Wisconsin USA
Status: 
Offline
Very impressed with the conduit and frame construction/mounting of these fans.  They operate beautifully.


It's to bad some of those late 19th century motor driven Levi Wing and Backus big boy ventilators don't surface. You would be the man to bring them back to life.  :D

Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 02:47 am
  PMQuoteReply
93rd Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Russ Huber wrote: Very impressed with the conduit and frame construction/mounting of these fans.  They operate beautifully.





It's to bad some of those late 19th century motor driven Levi Wing and Backus big boy ventilators don't surface. You would be the man to bring them back to life.  :D


Thank you Russ. I really appreciate the compliment! 

I will do some research to see the Levi Wing and the Backus Big Boy now that you have me curious!

Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 04:44 am
  PMQuoteReply
94th Post
David Foster
AFCA Member


Joined: Sat Jul 27th, 2013
Location: Lexington, Missouri USA
Status: 
Offline
I'm utterly amazed how quiet those fans are. You, sir, are an artisan in my book. 

Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 05:18 am
  PMQuoteReply
95th Post
Russ Huber
AFCA Member


Joined: Mon Nov 14th, 2005
Location: Southwest, Wisconsin USA
Status: 
Offline








David Allen wrote:
I will do some research to see the Levi Wing and the Backus Big Boy now that you have me curious!

Attached Image (viewed 134 times):

BackusVentilator-lanczos3.jpg

Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 11:54 am
  PMQuoteReply
96th Post
Michael Rathberger
AFCA Member


Joined: Tue Nov 15th, 2005
Location:  
Status: 
Offline

You definitely have the "formula" down on those big ventilators David, it's really nice, nice work.

Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 01:22 pm
  PMQuoteReply
97th Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
.
Russ Huber wrote:
[pictures]

David Allen wrote:
I will do some research to see the Levi Wing and the Backus Big Boy now that you have me curious!






 

Thanks for the pictures!  I included the Backus in the quote above because it's blade design has too much of a WOW factor not to!  I bet that would be QUITE valuable now-a-days. Seems anything with a bipolar DC motor is quite the rage!

Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 01:23 pm
  PMQuoteReply
98th Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
.
Michael Rathberger wrote:

You definitely have the "formula" down on those big ventilators David, it's really nice, nice work.

Thank you Michael.  I just tried to make a "minimalist" running display box fan, where the box doesn't draw attention from the fan its self. Also, intentionally the supports for the fan in the box hide as little of the fan's structure as possible. I started learning with the 48" Ilg project and have tried to improve each time.
.
David Foster wrote:I'm utterly amazed how quiet those fans are. You, sir, are an artisan in my book. They are nearly silent!  With journal bearing motors, there is no bearing noise at all. Being direct-drive there is no belt noise. And, with the fully enclosed motor there is little noise escaping there.  They were intended to be theater ventilation fans, so sound level was important to the designers, I am sure. 

Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 01:39 pm
  PMQuoteReply
99th Post
Russ Huber
AFCA Member


Joined: Mon Nov 14th, 2005
Location: Southwest, Wisconsin USA
Status: 
Offline
David Allen wrote:
I included the Backus in the quote above because it's blade design has too much of a WOW factor not to!  I bet that would be QUITE valuable now-a-days. Seems anything with a bipolar DC motor is quite the rage!

There are a number of 19th exhausters and ventilators, but that Backus blade rocks, and the frame it is bolted into rocks as well. The blade wing design differences(3 & 3) kind of give the illusion of an Eck ming blade that they travel on different planes.


It is unfortunate that the chances are rather remote one of these survived. But, as the Dunaway would say....."Never say never".   :D

Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 01:44 pm
  PMQuoteReply
100th Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Russ Huber wrote:




....as the Dunaway would say....."Never say never".   :D




Yes, this is a good one to live by. In fact, as long as there are foundries and iron on the planet; a new one could be cast and assembled using all the same materials and techniques. :clap:


Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 02:53 pm
  PMQuoteReply
101st Post
Dan Foley
AFCA Member


Joined: Sat Oct 4th, 2014
Location: New York USA
Status: 
Offline
David, those Sturtevants look incredible. Those are some fans I'd love to see in person.

Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 10:45 pm
  PMQuoteReply
102nd Post
Duane Burright
AFCA Member


Joined: Tue Nov 15th, 2005
Location: Malibu, California USA
Status: 
Offline
I can't top all the other recent comments - I'll just say that you really made a beautiful display that can be used daily in a workshop.

Of course it'd blow things off the walls in my shop.

Back To Top PMQuoteReply

 Posted: Wed Mar 14th, 2018 10:45 pm
  PMQuoteReply
103rd Post
Duane Burright
AFCA Member


Joined: Tue Nov 15th, 2005
Location: Malibu, California USA
Status: 
Offline
I can't top all the other recent comments - I'll just say that you really made a beautiful display that can be used daily in a workshop.

Of course it'd blow things off the walls in my shop :D.

Last edited on Wed Mar 14th, 2018 10:46 pm by Duane Burright

Back To Top PMQuoteReply  

 Posted: Wed Mar 14th, 2018 11:14 pm
  PMQuoteReply
104th Post
David Allen
AFCA Member
 

Joined: Mon Mar 6th, 2017
Location: Northport, Alabama, USA
Status: 
Offline
Duane Burright wrote: I can't top all the other recent comments - I'll just say that you really made a beautiful display that can be used daily in a workshop.



Of course it'd blow things off the walls in my shop :D.

Thanks!  But of course that's where the VFD comes in... just run it slightly above Decorative Low and it would be fine!

Dan Foley wrote:
David, those Sturtevants look incredible. Those are some fans I'd love to see in person.
Thanks!


Back To Top PMQuoteReply

Current time is 06:27 pm Page:  First Page Previous Page  1  2  3     
AFCA Forums > Antique Fan Collectors Association > Pre-1950 (Antique) > Sturtevant #8 Propeller Fans... Top



Beige Theme By: Di @ UltraBB
UltraBB 1.17 Copyright © 2007-2008 Data 1 Systems
Page processed in 0.2706 seconds (17% database + 83% PHP). 40 queries executed.