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 Posted: Fri Aug 20th, 2021 01:55 pm
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Dave Powell
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Vortalex Oscillating Fan F12V163 anyone know the OEM healthy fan speeds?   

Last edited on Sat Aug 21st, 2021 11:12 pm by Dave Powell

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 Posted: Sat Aug 21st, 2021 04:44 pm
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Dave Powell
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Anyone?

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 Posted: Mon Aug 23rd, 2021 02:28 am
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Levi Mevis
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Is it a 12" or a 16" Vortalex? We don't know fans by models numbers, so a picture would be nice.
I have a 12" Vortalex from 1946 (tan and dark brown) that is in proper working order, but I don't have no idea how fast (RPM) the speeds are.

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 Posted: Tue Aug 24th, 2021 04:13 pm
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Dave Powell
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16” fanCurrently getting 
1073
1195
1333
Seems slow, but may be because it is SO QUIET.

Attached Image (viewed 160 times):

A723C621-2A8A-4D03-9EB9-3C9D8606D2DF.jpeg

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 Posted: Tue Aug 24th, 2021 04:54 pm
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Noah Britt
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I can help you out, but I can't calculate the RPM's of my fan without opening the gearbox and counting gear teeth etc. However, I can count how many RPMs the oscillator bell does, so here are the osc. bell RPMs for my F12V163.

Low: barely over 3 bell RPMs (two seconds over 3 RPMs)

High: 3 1/2 RPMs exactly.


Oscillator bell RPMs won't be as accurate, but if you watch closely and measure as well as you can, they should be good enough to tell if your fan is running normally.

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 Posted: Wed Aug 25th, 2021 01:09 am
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Levi Mevis
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Dave Powell wrote: 16” fanCurrently getting 
1073
1195
1333
Seems slow, but may be because it is SO QUIET.

Your fan with the gray color is from the late 1950s and early 1960s.

The Vortalex Fans of the 12", 16" and 24" varieties used PSC motors in the first generation models (1938-1942) and then the second generation models(1946-1949) the 16" and 24" models were the only ones that used the PSC motors (12" models went to shaded pole motors by this point in time) and then third generation models (1950-1955) they dropped the 24" pedestal by the end of this generation and just had the 16" as only using the PSC motor, and the 4th generation models (1956-1963) which was the last generation for the Vortalexes they got rid of the PSC motor all together so that even the 16" models even had shaded pole motors by that point.

I'm not sure speed wise if those speeds are correct for a 16" shaded pole motor or not, but I know that most 16" fans I've ever had usually run slower than a 12" would because the 16" blades weigh more than your 12" blades do and so there is more torque required to rotate a heavy cast aluminum blade like the ones on the Vortalexes compared to say a stamped aluminum blade like what your average dimestore fan from the time period had (like your Bersteds for example). 

  

Last edited on Wed Aug 25th, 2021 01:10 am by Levi Mevis

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 Posted: Wed Aug 25th, 2021 01:26 am
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Noah Britt
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To date your fan precisely, it would be 1956-57, due to the handle on top of the cage. BTW the Vortalex blades are not cast, they are sheet aluminum.

Last edited on Wed Aug 25th, 2021 01:27 am by Noah Britt

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 Posted: Wed Aug 25th, 2021 01:51 am
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John McComas
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Digital Tachometer Non Contact Laser Photo RPM Tach Meter

Motor Speed Gauge New $11 shipped.

https://www.ebay.com/itm/203497103059?hash=item2f615f5ed3:g:W8cAAOSw-j1gy9HZ

https://www.frentaly.com/ameri/tool/tachometer/no_battery/pic02.jpg



Last edited on Wed Aug 25th, 2021 01:53 am by John McComas

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 Posted: Wed Aug 25th, 2021 02:15 am
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Dave Powell
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John McComas wrote: Digital Tachometer Non Contact Laser Photo RPM Tach Meter

Motor Speed Gauge New $11 shipped.

https://www.ebay.com/itm/203497103059?hash=item2f615f5ed3:g:W8cAAOSw-j1gy9HZ

https://www.frentaly.com/ameri/tool/tachometer/no_battery/pic02.jpg



Yes digital strobes are cheap and very handy in checking the health of a fan and to align the blades.

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 Posted: Wed Aug 25th, 2021 09:11 pm
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Levi Mevis
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Noah Britt wrote: To date your fan precisely, it would be 1956-57, due to the handle on top of the cage. BTW the Vortalex blades are not cast, they are sheet aluminum.


Actually they are cast aluminum, that's why they are so difficult to put back into clock. 

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 Posted: Wed Aug 25th, 2021 09:40 pm
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Noah Britt
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Levi Mevis wrote: Noah Britt wrote: To date your fan precisely, it would be 1956-57, due to the handle on top of the cage. BTW the Vortalex blades are not cast, they are sheet aluminum.


Actually they are cast aluminum, that's why they are so difficult to put back into clock. 


That is strange, my F12V163 has sheet aluminum blades. I have not encountered any cast Vortalex blades that I remember. Thick aluminum (like Vortalex blades or highway signs) is very hard to bend. One time I tried to fix a badly bent aluminum highway sign, and it took me several hours trying everything I could think of, and I still didn't get it totally straight. I don't know why, but when you try to bend aluminum, it just likes to flex instead of actually bend, like steel would.

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 Posted: Thu Aug 26th, 2021 08:02 am
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Levi Mevis
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Noah Britt wrote: Levi Mevis wrote: Noah Britt wrote: To date your fan precisely, it would be 1956-57, due to the handle on top of the cage. BTW the Vortalex blades are not cast, they are sheet aluminum.


Actually they are cast aluminum, that's why they are so difficult to put back into clock. 


That is strange, my F12V163 has sheet aluminum blades. I have not encountered any cast Vortalex blades that I remember. Thick aluminum (like Vortalex blades or highway signs) is very hard to bend. One time I tried to fix a badly bent aluminum highway sign, and it took me several hours trying everything I could think of, and I still didn't get it totally straight. I don't know why, but when you try to bend aluminum, it just likes to flex instead of actually bend, like steel would.

I mean unless maybe its the hub that I was thinking of, or maybe the larger 24" models, but I'm pretty sure the blades are cast aluminum on the vortalexes. 

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