Bank Vault Fan I Have, copper tube was cut - - A Polar Cub motor

[Steven P Dempsey]

I saw a complete one sell recently, tube is like 4' long

[George Durbin]

I have 2 of these "bank vault" fans... Think about it... I am guessing these are the least used fans in history!! 

[Russ Huber]

Copper Bank Volt Ventilator Fan O.B. Mcclintock CO 1928 RARE ANTIQUE | eBay

[Russ Huber]

I have 2 nice complete and functional with NO dents. I took them to a brass instrument repair shop and the took out all the creases and dents.

Edited September 29, 2022 by Russ Huber

[Steven P Dempsey]

I was going to use mine through the wall in my shop for ventilation, how were the motors oiled?

[Russ Huber]

There are no outside oil ports I am aware of. You have too physically remove the Polar Cub fan to add oil to its small oil ports. 

[George Durbin]

3 hours ago, Russ Huber said:

There are no outside oil ports I am aware of. You have too physically remove the Polar Cub fan to add oil to its small oil ports. 

What Russ says!

[George Durbin]

19 hours ago, Russ Huber said:

I have 2 nice complete and functional with NO dents. I took them to a brass instrument repair shop and the took out all the creases and dents.

Hi Russ! Was removing dents pricey?

[Russ Huber]

Just now, George Durbin said:

Hi Russ! Was removing dents pricey?

No, I think the instrument tech thought I was homeless and digging through dumpsters for soup and sandwich. Purchasing them was not cheap.

Don't shave or take a bath for over a week and wear used sweats from Goodwill with holes in them before you go to the music shop.

[George Durbin]

1 hour ago, Russ Huber said:

No, I think the instrument tech thought I was homeless and digging through dumpsters for soup and sandwich. Purchasing them was not cheap.

Don't shave or take a bath for over a week and wear used sweats from Goodwill with holes in them before you go to the music shop.

I get all my wardrobe from GW! I will fit right in!

The cub motors are easy to remove and lube...

I was wondering if these fans only ran when someone was stuck in the vault or was also used for general ventilation?

[Steven P Dempsey]

What are those 3 handles for? Weird.

[Russ Huber]

5 minutes ago, Steven P Dempsey said:

What are those 3 handles for? Weird.

Firemen used them for building smoke inhalation control. Long extension cords and multiple handles for sure grip, knock down the door, stick the sucking side in the building, and let the 3700 RPM Polar Cub suck the building nearly smoke free. Fact Jack.

[Russ Huber]

Psssssssssssssst........those are spring wire for tension to hold the tube snug on the narrow end in the vault hole the ventilator tube is installed in.

[Steven P Dempsey]

Wow, a lowly dime store fan saves the day . . .