finding involute gear cutter

[Michael Gilligan]

On Michael Gilligan Said:

Just for the record … here is Brown’s patent:

https://worldwide.espacenet.com/patent/search?q=pn%3DUS45294A

MichaelG.

Fascinating to find patents, I couldn’t see the bore of the cutter for some reason, probably my eyesight?

I found some patents for von Pittler who patented over 200 wildly diverse things around the end of the 19th century inc the worlds first vertical capstan lathe that the Pittler company still produce but call it a revolver and a car that was fuelled by gunpowder and actually worked but was too noisy ! not found the patent for that one though

[Michael Gilligan]

On Michael Gilligan Said:

Just for the record … here is Brown’s patent:

https://worldwide.espacenet.com/patent/search?q=pn%3DUS45294A

MichaelG.

Interesting for sure although I could not see the bore size unless it’s my bad eyesight.

I have found a few Pittler patents and he registered over 200 around the end of the 19th century inc the worlds first vertical capstan lathe which the modern day Pittler company call Revolver.

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