Jim Roadt Posted December 30, 2024 Posted December 30, 2024 (edited) An illustrious AFCA member informed me of this fan today 40 minutes from my house. I will clean it up a bit and be the first fan offered at Fanapalooza III..... May 9 2025.....let the shameless hype begin Edited January 6 by Jim Roadt date wrong 2 Quote
Patrick Ray Posted December 31, 2024 Posted December 31, 2024 Looking forward to seeing it all cleaned up at Fanapalooza! Quote
James Lawson Posted December 31, 2024 Posted December 31, 2024 Call me crazy, but I always thought the back of that motor was cool-looking. 1 Quote
Jim Roadt Posted December 31, 2024 Author Posted December 31, 2024 1 hour ago, James Lawson said: Call me crazy, but I always thought the back of that motor was cool-looking. Quote
Russ Huber Posted December 31, 2024 Posted December 31, 2024 (edited) Introduced in 1920 these 8" universal motor (AC/DC) models came in 2 flavors. The first was Jim's model list 3500. The list 3500 has a cast in cavity front and back for felt wicking lubrication. The second model list 3504 has same construction but oil cups with felt wicking lubrication. These 8" fans have impressive construction of a cast iron base and motor housing. The only weakness are the composite brush holders which are vulnerable to fracture. The blades are a special sturdy steel construction. The black enamel finish on the blade at times is worn exposing the copper flashing underneath. If the black enamel is removed carefully the blades copper flashing gives the blade an interesting look. 🙂 Edited December 31, 2024 by Russ Huber 1 Quote
Russ Huber Posted December 31, 2024 Posted December 31, 2024 If you like these R&M models, there are 3 models to complete the collection. The 3500, 3504, and the farm plant 32 VDC model. You can easily bypass the heat generating resistance wire intended for the DC selection by disconnecting it and in place a half wave rectifying diode rated at 2.5 - 4 amp rating for 1000v as seen in the image. You will then have a high and low speed. 2 Quote
Russ Huber Posted December 31, 2024 Posted December 31, 2024 (edited) 14 hours ago, Russ Huber said: If you like these R&M models, there are 3 models to complete the collection. The 3500, 3504, and the farm plant 32 VDC model. What I am not sure of was the 32-volt DC farm plant model offered as a list 3500 and 3504, or did it have its own list model number? Common sense would be the fan would only have a 2-position switch that being ON and OFF. It may very well have the resistance wire wind for the ON position. I have never seen one in the flesh or recall one posted. Anyone have a 32 VDC model? Edited December 31, 2024 by Russ Huber Quote
George Durbin Posted December 31, 2024 Posted December 31, 2024 Yeah.. well... still not a jr... 😅🤣😂 Quote
Jim Roadt Posted December 31, 2024 Author Posted December 31, 2024 I'm starting to like it enough to consider repairing cage and replacing the power cord. Keywords from Russ " remove paint carefully " To expose copper on blades 1 Quote
Jim Roadt Posted December 31, 2024 Author Posted December 31, 2024 Two speeds ....AC fast DC slow Quote
Russ Huber Posted January 1 Posted January 1 (edited) 1 hour ago, Jim Roadt said: Two speeds ....AC fast DC slow Lucky you, 50-60% of the time the resistance wire has an open on the DC setting and is dysfunctional. Easy peasy fix with a half wave diode to slow it down. And little to no heat from the diode. Edited January 1 by Russ Huber 1 Quote
Russ Huber Posted January 1 Posted January 1 (edited) R&M product marketed Western Electric 1924. Notice the 8" 32-volt farm plant fan is one speed. Being it is offered at the same DC speed as the AC-DC model it too would have the resistance wire wind. Also notice the ceiling fan is offered for 32-volt farm plant. Edited January 1 by Russ Huber Quote
Jim Kovar Posted January 1 Posted January 1 2 hours ago, Russ Huber said: ...32-volt... ...fan... ...one speed. ...would have the resistance wire wind. Why would it not just be wound to run on 32VDC w/o a series resistance? One speed, one DC voltage, no resistance needed. Quote
Edward Kowalke Posted January 1 Posted January 1 Not to hijack this thread, I picked up this #7700 AC/DC WE fan a couple years ago, The blades had been over cleaned (too shiny) on the front, back patina looked nice. I decided I was going to experiment on the blade. This was the first, My son said he really liked it (It's his when I die) so I didn't do anything else. Quote
Russ Huber Posted January 1 Posted January 1 8 hours ago, Jim Kovar said: Why would it not just be wound to run on 32VDC w/o a series resistance? One speed, one DC voltage, no resistance needed. The WE list numbers of the AC-DC and the 32-volt models have the same DC speed listed of 1950 RPM. The AC-DC model list 7704 would have the resistance wire wind for the DC setting. Quote
Russ Huber Posted January 1 Posted January 1 (edited) 3 hours ago, Edward Kowalke said: Not to hijack this thread, I picked up this #7700 AC/DC WE fan a couple years ago, The blades had been over cleaned (too shiny) on the front, back patina looked nice. I decided I was going to experiment on the blade. This was the first, My son said he really liked it (It's his when I die) so I didn't do anything else. That is sharp, Ed. Wonder why your list number is not seen below? Does your model have the cast in cavity felt lubricators? There were two AC-DC list models, one with the cast in cavity for felt lubrication, the other oil cups. Edited January 1 by Russ Huber Quote
Russ Huber Posted January 1 Posted January 1 (edited) It appears there would be 6 of these models to collect for the full set. All manufactured by R&M, 3 marketed by Western Electric under different list numbers. Edited January 1 by Russ Huber Quote
Jim Kovar Posted January 1 Posted January 1 32VDC R&M 3503... Yes, that's a resistor!,... to make it a 2 speed fan. Quote
Russ Huber Posted January 1 Posted January 1 55 minutes ago, Jim Kovar said: 32VDC R&M 3503... Thanks for sharing that one. I have yet to find anything in electrical trade to support the dual speeds offered on the 32 VDC farm plant model. There can't be many of those around. Quote
Russ Huber Posted January 1 Posted January 1 Now......is there a 32 VDC model with OIL CUPS out there? Anyone? Quote
Russ Huber Posted January 1 Posted January 1 (edited) R&M List models: 3500 - 110-volt AC/DC model with cast in cavities for felt oil wicking lubrication. 3504 - 110-volt AC/DC model with felt wicks and oil cups. 3503 - 32-volt DC 2 speed model with cast in cavities for felt oil wicking lubrication. 3507(?) - 32-volt DC 2 speed with felt wicks and oil cups??? Western Electric List (R&M) models: 7700 - 110-volt AC/DC model with cast in cavities for felt oil wicking lubrication. 7704 - 110-volt AC/DC model with felt wicks and oil cups. 7703(?) - 32-volt DC 2 speed with felt wicks or oil cups??? 7707 - 32-volt DC 2 speed with felt wicks or oil cups??? Edited January 1 by Russ Huber Quote
Edward Kowalke Posted January 1 Posted January 1 5 hours ago, Russ Huber said: That is sharp, Ed. Wonder why your list number is not seen below? Does your model have the cast in cavity felt lubricators? There were two AC-DC list models, one with the cast in cavity for felt lubrication, the other oil cups. Cast wick type, It is an 8" 110V AC/DC. I see you show it listed in a later post Quote
Russ Huber Posted January 2 Posted January 2 (edited) 12 hours ago, Edward Kowalke said: Not to hijack this thread, I picked up this #7700 AC/DC WE fan a couple years ago, The blades had been over cleaned (too shiny) on the front, back patina looked nice. I decided I was going to experiment on the blade. This was the first, My son said he really liked it (It's his when I die) so I didn't do anything else. That Roadt guy is green with envy with your blade. Count on it! Hijackers welcome. 🙂 Edited January 2 by Russ Huber Quote
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