And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
I saw one with a square center gear inside a circular piece of stock rotating around it, and the whole thing would fit easily between thumb and forefinger.
Nein. This and similar gearing was in widespread use well before herr Wankel's birth.
In fact, the period beginning the late 1700s/early 1800s until maybe mid-century, featured all sorts of take offs on gear combinations and gear shapes.
Some machinists created geometric gears to, say turn rotary to rectilinear to rotary just because they could. It was a wild period for machine works. Rube Goldberg didn't pop out of nowhere.
If it were a Spirograph, I wonder what picture it would draw.
ReplyDeleteThis reminds of an aerobatic maneuver. A full circle while rolling opposite direction.
DeleteEx; turn right, roll left.
BTW: gears as shown was used beginning nigh 200 yrs ago to turn rotary motion into rectilinear motion.
Judging by the acorn nuts it's not very big.
ReplyDeleteI beg your pardon...
DeleteI saw one with a square center gear inside a circular piece of stock rotating around it, and the whole thing would fit easily between thumb and forefinger.
ReplyDeleteFrom November '20.
Herr Wankel’s invention i think.
ReplyDeleteKlaus
Nein. This and similar gearing was in widespread use well before herr Wankel's birth.
DeleteIn fact, the period beginning the late 1700s/early 1800s until maybe mid-century, featured all sorts of take offs on gear combinations and gear shapes.
Some machinists created geometric gears to, say turn rotary to rectilinear to rotary just because they could. It was a wild period for machine works. Rube Goldberg didn't pop out of nowhere.
I saw an old film compilation of weird gears from yesteryear on YouTube. Wish I'd saved it.
DeletePlanetary gears.
ReplyDeletefetch my watts drill so I can wrankle my wankel...
ReplyDelete