Roger Borg Posted August 18, 2024 Posted August 18, 2024 Stan and Russ mentioned in another thread where the blades meet the hub, images pulled from that thread, and some additional also. Can someone please explain the evolution of this aspect of the blades, specifically cast hub, not stamped. Did they initially begin flat, the rounded, then chamfered? How did 4 vs 6 blade affect it? Wondered about this for a while, and figured instead of commenting on the other thread, I'd start one just for this question. Thanks... Quote
Roger Borg Posted August 20, 2024 Author Posted August 20, 2024 This is from a 19666, rounded. Can anyone else share pics of early emerson hubs and blade bases? Can anyone explain the history / evolution of this aspect? Thanks... Quote
Roger Borg Posted August 20, 2024 Author Posted August 20, 2024 3 hours ago, Jim Oneill said: This is cast hub from emerson 11666 Interesting the left sides are rounded corners and not crisp angles. Thanks for posting... Quote
Chris Campbell Posted August 20, 2024 Posted August 20, 2024 The rivet holes line up on all blades from tripod and on. Exception is the 24 series when rivet close to center is pushed out around 1/8” to take the drill hole away from crevice of finger and body of hub. Next generation 27 was stamped steel and pattern resumed after broken fingers were not longer an issue on stamped hubs. Quote
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