Louis Luu Posted September 14, 2022 Share Posted September 14, 2022 (edited) Picked up this Emerson. Never owned one of these before. I have been dying to study the gear mechanism on this thing for awhile. I was told it is a first generation oscillating fan from Emerson? Edited September 14, 2022 by Louis Luu 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 14, 2022 Author Share Posted September 14, 2022 It is missing something the owner referred to a dog bone? Quote Link to comment Share on other sites More sharing options...
Dan Hilton Posted September 14, 2022 Share Posted September 14, 2022 Yes there is a 'dogbone' shaped link that is placed between the two shoulder screws. That ties the wheel to the link arm. These are not the smoothest running oscillators hence the name first generation. Dan H. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 14, 2022 Author Share Posted September 14, 2022 1 minute ago, Dan Hilton said: Yes there is a 'dogbone' shaped link that is placed between the two shoulder screws. That ties the wheel to the link arm. These are not the smoothest running oscillators hence the name first generation. Dan H. As long as it is not Pot metal gearbox...I'll learn to love it. What makes these not smooth oscillating? Is it binding somewhere? Quote Link to comment Share on other sites More sharing options...
Dan Hilton Posted September 14, 2022 Share Posted September 14, 2022 There are just a lot of wear points that cause the mech to get sloppy over time. If every bearing surface is re-bushed then they run great but there are a lot of bearing surfaces including in the links themselves. It's a good gearbox, just not their best. Dan H. Quote Link to comment Share on other sites More sharing options...
Eric Laird Posted September 15, 2022 Share Posted September 15, 2022 Very nice fan! You got it for a great price! 1 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted September 15, 2022 Share Posted September 15, 2022 1498395234830172000-00952458 (storage.googleapis.com) 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 15, 2022 Author Share Posted September 15, 2022 Quote Link to comment Share on other sites More sharing options...
Phillip Scott Posted September 15, 2022 Share Posted September 15, 2022 Excellent response Louis. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 15, 2022 Author Share Posted September 15, 2022 1 minute ago, Phillip Scott said: Excellent response Louis. Russ's linked the pictures. I simply grabbed them and posted them here for reference. I'll be picking up the fan this weekend and will crack it open to study the gears. Looks like 3 gears with two of them stacked. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 15, 2022 Author Share Posted September 15, 2022 This is Randy Welch's fan. 1 Quote Link to comment Share on other sites More sharing options...
Geoff Dunaway Posted September 15, 2022 Share Posted September 15, 2022 I have seen one of these fans where every connection was rebuilt to factory specs. When so done, and lubed at each wear point, the oscillation was as smooth as a nearly new 77XXX model. Hey Louis, there is a demand to some extent for those gears, to complete a number of old stumps. Those gears will run Trojan 52 & 54 serise oscillators as well though the linkage set-up may be angled differently. Great pick-up. I reached out to the seller who is going thru some tough times. Glad the fan wound up in your hands. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 15, 2022 Author Share Posted September 15, 2022 15 minutes ago, Geoff Dunaway said: I have seen one of these fans where every connection was rebuilt to factory specs. When so done, and lubed at each wear point, the oscillation was as smooth as a nearly new 77XXX model. Hey Louis, there is a demand to some extent for those gears, to complete a number of old stumps. Those gears will run Trojan 52 & 54 serise oscillators as well though the linkage set-up may be angled differently. Great pick-up. I reached out to the seller who is going thru some tough times. Glad the fan wound up in your hands. I've talked to him as well. Seem really nice. I will see what I can do about the gears. Quote Link to comment Share on other sites More sharing options...
Steve Cunningham Posted September 15, 2022 Share Posted September 15, 2022 If memory serves me well, at least one showed up with an A suffix on the model number. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 16, 2022 Author Share Posted September 16, 2022 17 hours ago, Louis Luu said: I'm studying the diagram and the box does not seem that complicated to draw up if needed. I might make one so I can have all the holes with bushings to make it a smooth oscillator. Quote Link to comment Share on other sites More sharing options...
Jon Kovach Posted September 17, 2022 Share Posted September 17, 2022 On 9/14/2022 at 5:41 AM, Louis Luu said: Picked up this Emerson. Never owned one of these before. I have been dying to study the gear mechanism on this thing for awhile. I was told it is a first generation oscillating fan from Emerson? Hey Louis, I was thinking about buying this fan as I live close to the seller. Are you in the LA area? I’m trying to find members and enthusiasts in SoCal and possibly organize a meet. thanks, Jon Quote Link to comment Share on other sites More sharing options...
Jon Kovach Posted September 17, 2022 Share Posted September 17, 2022 On 9/14/2022 at 7:00 PM, Eric Laird said: Very nice fan! You got it for a great price! Agreed Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 18, 2022 Author Share Posted September 18, 2022 4 hours ago, Jon Kovach said: Hey Louis, I was thinking about buying this fan as I live close to the seller. Are you in the LA area? I’m trying to find members and enthusiasts in SoCal and possibly organize a meet. thanks, Jon I live in the inland empire area. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 18, 2022 Author Share Posted September 18, 2022 Just got home. The box and the gears are doable. I need to find a stump. I want to have one with the brass box. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 18, 2022 Author Share Posted September 18, 2022 Does anyone know if the worm is part of the shaft or screwed on? Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 18, 2022 Author Share Posted September 18, 2022 If anyone has a stump missing the box and gears, please let me know. I would be interested in acquiring one for testing a new gearbox along with the gears. Quote Link to comment Share on other sites More sharing options...
Geoff Dunaway Posted September 18, 2022 Share Posted September 18, 2022 Pretty sure that the gear screws onto the shaft, otherwise don't think U could get the rotor out of the back motor housing. BTW, I have a 16" Trojan fan stump that would be glad to serve as a loaner to help U get this project off & running until you can find a keeper. Gearbox should be same for both. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted September 18, 2022 Author Share Posted September 18, 2022 1 hour ago, Geoff Dunaway said: Pretty sure that the gear screws onto the shaft, otherwise don't think U could get the rotor out of the back motor housing. BTW, I have a 16" Trojan fan stump that would be glad to serve as a loaner to help U get this project off & running until you can find a keeper. Gearbox should be same for both. Thanks Geoff. Let me get the collar oscillator project out the door first before I tackle this project. Both projects are similar since the goal is to see if printed steel gears can be used as a viable source to get these older fans running again. Quote Link to comment Share on other sites More sharing options...
Steven P Dempsey Posted September 18, 2022 Share Posted September 18, 2022 Bravi was making parts for those, I had a few - all missing that linkage for some reason, a design defect I expect. 1 Quote Link to comment Share on other sites More sharing options...
Patrick Ray Posted September 18, 2022 Share Posted September 18, 2022 Not sure if Bravi's links will fit. The design of the gear box changed somewhere by the time it got to the 12xxx & 16xxx. Best to reach out to him to know for sure. 1 Quote Link to comment Share on other sites More sharing options...
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