Here's a closer pic of the protrusion; if you can make it out, it almost looks like it has a tail, like the shape of a comma. Also, the spot that I thought was just discoloration looks like dried epoxy, as though there was a hole that got filled in. One thing for sure, I ain't gonna be digging on it to see if it's a hole.sweetandsour wrote: ↑18 Oct 2022, 07:58No, it's not hollow. It weighs 16 lbs, per our bathroom scales.Hugo Drax wrote: ↑18 Oct 2022, 07:26I think Fred hit the nail on the head. It's not hollow, is it?sweetandsour wrote: ↑18 Oct 2022, 07:20
This is the best explanation I've seen so far. In my short 4-yr experience working at a cement manufacturing plant (Alpha Portland Cement Co.), I don't recall seeing a crushing/grinding ball that large (5" dia.), but of course my experience is limited, and it was many years ago. I read somewhere about mortar rounds with indentations so that they could easily be picked up with tongs, as well as to facilitate stacking. But I agree with you, and like I said earlier, it's the round protrusion that's a mystery to me. It's likely a discarded crushing ball that didn't get used. Why and how my cousin came by it, I'll never know.
Cannonball?
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We integrate ball mills in some of our systems and I've never seen one that large either. But this is for breaking ore in to gravel - the larger the ball, the larger the spaces between balls, the larger the broken down particles.sweetandsour wrote: ↑18 Oct 2022, 07:20 In my short 4-yr experience working at a cement manufacturing plant (Alpha Portland Cement Co.), I don't recall seeing a crushing/grinding ball that large (5" dia.), but of course my experience is limited, and it was many years ago.
The big black cylinder being set in this photo is a ball mill we installed in Canada two years ago. It mills fly ash and bottom ash from a coal-fired power plant into fine powder that can be used for concrete or roadbed stabilization.
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Pretty much every large ball mill I ever saw had what appeared to be large spikes on the drum, sort of steampunk or Mad Max style. I presume they are actually mounting bolts for the interior baffles.FredS wrote: ↑18 Oct 2022, 09:46We integrate ball mills in some of our systems and I've never seen one that large either. But this is for breaking ore in to gravel - the larger the ball, the larger the spaces between balls, the larger the broken down particles.sweetandsour wrote: ↑18 Oct 2022, 07:20 In my short 4-yr experience working at a cement manufacturing plant (Alpha Portland Cement Co.), I don't recall seeing a crushing/grinding ball that large (5" dia.), but of course my experience is limited, and it was many years ago.
The big black cylinder being set in this photo is a ball mill we installed in Canada two years ago. It mills fly ash and bottom ash from a coal-fired power plant into fine powder that can be used for concrete or roadbed stabilization.
But, anyway, I think I'm going to call this thing a 19th century 18 lb mortar round, and just go with it.
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Cannonball?
That could be my left.... well... no... mine was a little heavier.
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I call Snickers bars "protein energy bars" so I'm in no position to judge.sweetandsour wrote: ↑18 Oct 2022, 10:12 But, anyway, I think I'm going to call this thing a 19th century 18 lb mortar round, and just go with it.
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Then not a mortar round. I was thinking that protrusion could have been where the plug was placed on an incendiary mortar that when "phut" instead of "kapow."sweetandsour wrote: ↑18 Oct 2022, 07:58No, it's not hollow. It weighs 16 lbs, per our bathroom scales.Hugo Drax wrote: ↑18 Oct 2022, 07:26I think Fred hit the nail on the head. It's not hollow, is it?sweetandsour wrote: ↑18 Oct 2022, 07:20
This is the best explanation I've seen so far. In my short 4-yr experience working at a cement manufacturing plant (Alpha Portland Cement Co.), I don't recall seeing a crushing/grinding ball that large (5" dia.), but of course my experience is limited, and it was many years ago. I read somewhere about mortar rounds with indentations so that they could easily be picked up with tongs, as well as to facilitate stacking. But I agree with you, and like I said earlier, it's the round protrusion that's a mystery to me. It's likely a discarded crushing ball that didn't get used. Why and how my cousin came by it, I'll never know.
I'm voting with Fred on this one.
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Me too...its a "protein energy bar" Oh wait...I saw Snickers and forgot what we were talking about....Hugo Drax wrote: ↑18 Oct 2022, 12:43Then not a mortar round. I was thinking that protrusion could have been where the plug was placed on an incendiary mortar that when "phut" instead of "kapow."sweetandsour wrote: ↑18 Oct 2022, 07:58No, it's not hollow. It weighs 16 lbs, per our bathroom scales.
I'm voting with Fred on this one.
I want it to be a civil war mortar round/cannon ball...so in my mind it is
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I was hoping it came from a Texas independence cannon.Bloodhound wrote: ↑18 Oct 2022, 13:15Me too...its a "protein energy bar" Oh wait...I saw Snickers and forgot what we were talking about....Hugo Drax wrote: ↑18 Oct 2022, 12:43Then not a mortar round. I was thinking that protrusion could have been where the plug was placed on an incendiary mortar that when "phut" instead of "kapow."sweetandsour wrote: ↑18 Oct 2022, 07:58
No, it's not hollow. It weighs 16 lbs, per our bathroom scales.
I'm voting with Fred on this one.
I want it to be a civil war mortar round/cannon ball...so in my mind it is
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