Louis Luu Posted October 12, 2023 Share Posted October 12, 2023 (edited) Edited October 15, 2023 by Louis Luu 1 Quote Link to comment Share on other sites More sharing options...
Jeff Lumsden Posted October 12, 2023 Share Posted October 12, 2023 https://patents.google.com/patent/US819630A/en?oq=us819630 1 1 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 12, 2023 Share Posted October 12, 2023 Ralph was a GE company man. inventor:(Ralph E Barker) - Google Patents 1 Quote Link to comment Share on other sites More sharing options...
Steve H Jordan Posted October 12, 2023 Share Posted October 12, 2023 2 hours ago, Louis Luu said: I am intrigued by this Louis - what keeps the pendulum swinging ? In a clock the pendululum is purely the regulation of the power provided either by the dropping of a weight or from a spring. So where is the power coming from for the pendulum effect on this fan ? Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 12, 2023 Author Share Posted October 12, 2023 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 12, 2023 Author Share Posted October 12, 2023 Took a quick glance...will need to read this several times to see how the fan is moving. Quote Link to comment Share on other sites More sharing options...
Steve Rockwell Posted October 13, 2023 Share Posted October 13, 2023 That's a 2 1/2 year wait from filing to issue... same as the Pancake switch he did with Augie Everest 1 Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted October 13, 2023 Share Posted October 13, 2023 (edited) 6 hours ago, Steve H Jordan said: I am intrigued by this Louis - what keeps the pendulum swinging ? In a clock the pendululum is purely the regulation of the power provided either by the dropping of a weight or from a spring. So where is the power coming from for the pendulum effect on this fan ? Works in a similar way as a vane oscillator. With a vane oscillator, the vane partially blocks the flow of air on one side (an air pressure imbalance), thus causes the fan to sweep to the other side. Instead of a vane, the fan in the patent shifts the motor head to the side to cause the air pressure imbalance. I assume the motor head, blade and cage would be slightly heavier than the bottom counterweight. The lever actuator and base stops cause the sweep to change direction. Edited October 13, 2023 by Jim Kovar 2 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 13, 2023 Share Posted October 13, 2023 17 minutes ago, Jim Kovar said: Works in a similar way as a vane oscillator. Instead of a vane, the fan in the patent shifts the motor head to the side to cause the air pressure imbalance. The oscillation process always starts CCW due to the tilt weight on the left guard support. The pivotable bulbous counterweight below the fan motor kicks the fan motor back clockwise to start the process over again. Do the math by studying #15, #16, and #17 keeping in mind the fan motor and counterweight below pivot. #14 and opposite side are set screws to reduce or increase sweep in some manner. Haven't gotten that far yet. 2 1 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 13, 2023 Share Posted October 13, 2023 1 minute ago, Louis Luu said: What would happen when one of the stop reaches the other stop? The fan body pivots upright slightly, the weight on the left hand guard strut pulls the fan body back down to a tilt kicking it back the other direction. 1 1 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 13, 2023 Share Posted October 13, 2023 I could see this one being a pain to get to run consistently. Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 13, 2023 Share Posted October 13, 2023 16 hours ago, Louis Luu said: This is one heck of an oscillating mechanism. I think Ralph had second thoughts on that. Rockwell credited images. 1 Quote Link to comment Share on other sites More sharing options...
Steve H Jordan Posted October 13, 2023 Share Posted October 13, 2023 17 hours ago, Jim Kovar said: Works in a similar way as a vane oscillator. With a vane oscillator, the vane partially blocks the flow of air on one side (an air pressure imbalance), thus causes the fan to sweep to the other side. Instead of a vane, the fan in the patent shifts the motor head to the side to cause the air pressure imbalance. I assume the motor head, blade and cage would be slightly heavier than the bottom counterweight. The lever actuator and base stops cause the sweep to change direction. Thats fascinating - I look forward to watching this project with interest. 2 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 14, 2023 Author Share Posted October 14, 2023 Backup plan. 1 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 14, 2023 Share Posted October 14, 2023 Backup plan. 🙂 2 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 14, 2023 Share Posted October 14, 2023 7 hours ago, Steve H Jordan said: Thats fascinating - I look forward to watching this project with interest. On 10/12/2023 at 10:46 PM, Louis Luu said: This is one heck of an oscillating mechanism. I will need to read the text again this weekend and make some notes to the parts referenced to fully appreciate the patent description. I am fascinated as well, Louis. I am glad to see your enthusiasm with Ralph's concept, and your own personal back-up options displayed. It appears you are going to pursue it. Can't wait to see it work. What fan motor are you going to attempt this challenge with? Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 14, 2023 Share Posted October 14, 2023 So, what is with all the measurements on an Early GE DC motor? Do you have one to cut the base for modifications for the experimental attempt? Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted October 14, 2023 Share Posted October 14, 2023 2 minutes ago, Louis Luu said: The measurements is a starting point to get the proportions correct for drawing. I need to have a size reference. The motor dimensions are not critical to the function of this concept. Most fan motors are symmetrical. The 12, 3, 6, and 9 o'clock guard support configuration is critical to this concept as you know with the ADJUSTABLE weight on the 3 o'clock guard support. The lower counterweight will be your challenge. Good luck. 1 Quote Link to comment Share on other sites More sharing options...
George Durbin Posted October 14, 2023 Share Posted October 14, 2023 Probably a safety piece to keep the fan from over rotating? Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 15, 2023 Author Share Posted October 15, 2023 (edited) Edited October 16, 2023 by Louis Luu 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 16, 2023 Author Share Posted October 16, 2023 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 16, 2023 Author Share Posted October 16, 2023 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 16, 2023 Author Share Posted October 16, 2023 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 17, 2023 Author Share Posted October 17, 2023 (edited) Bottom pendulum refined. I will cut it when I get home. Edited October 17, 2023 by Louis Luu 1 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted October 21, 2023 Author Share Posted October 21, 2023 Top portion of the pendulum. Top will be threaded to adjust for height. Bottom is hollow for weight adjustments. 1 Quote Link to comment Share on other sites More sharing options...
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