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San Dimas, CA Pacific Electric Rock Crusher?


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  #1  
Old 05-15-2019, 03:08:37 PM
Monsonmotors Monsonmotors is offline
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Default San Dimas, CA Pacific Electric Rock Crusher?

I saw this on EBay and wondered if these are old photos of the “phantom” rock crusher that was near San Dimas Canyon Park on
the old Pacific Electric RR spur.
I grew up in San Dimas and the Historical Society there would surely appreciate a verification either way.
As far as we know no other photos exist.
The advertisement on EBay lists the photos as “machinery near San Dimas or Covina. 1923”
Is it an old rock crusher used to make ballast rock?
Thanks!
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Old 05-19-2019, 01:12:18 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Bumping this back to the top.
Is this an old ballast rock crusher? If not, what is it?
Not from a mining district as far as I know (San Gabriel Valley, CA Floor).
I think I see a rock trommel and two huge electric motors. Lots of big gears...
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Old 05-19-2019, 02:48:04 PM
Bill Hazzard Bill Hazzard is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

I see a trommel for sure but I do not see anything that looks like a crusher.
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Old 05-19-2019, 04:25:38 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Maybe a conveyor, too? Conveyor might load material into a rail car?
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Old 05-19-2019, 09:51:05 PM
Nathan K. Nathan K. is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Looks like very heavy gearing to drive a trommel, maybe a ball mill instead?.
Nathan.
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Old 05-19-2019, 11:01:14 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

San Dimas, CA and the San Gabriel Valley was the center of citrus production from about 1900 to about 1950. Orange and lemon groves dominated the landscape for as far as the eye could see from just east of Los Angeles all the way to San Bernardino and south from there.
How does this machinery fit in to big agriculture?
The mouth of San Dimas Canyon once had a rock crusher as identified on old maps and by eye witnesses.
It was located on a Pacific Electric railroad spur that also serviced
the world famous Teague Nursery that sent citrus tree stock to the four corners. The rock crusher is known to have supplied ballast rock for large projects like roads or railroad beds.
The machine I’ve shown seems to have a lot more in common with rock handling than citrus production?
I’ve searched online for “antique rock crushers” and don’t immediately see on in these photos, either.
I’ve enlarged a portion of one of the photos to show something in the background that might be the actual crusher?
This is pre-1910 that the spur/crusher were installed. Not everyone had electric power then, yet this picture shows two ancient electric motors that could easily have been powered off the Pacific Electric power grid.
And, what is a ball mill?
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Old 05-19-2019, 11:31:18 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Here are some Pacific Electric San Dimas Canyon spur photos from the 1930s or 1940s.
My school bus drove over the remaining spur tracks in the 1960s.
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Old 05-20-2019, 04:49:31 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

I purchased the EBay “machine” pictures. Maybe I can see something.
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Old 05-24-2019, 04:47:52 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Best scans I could do.
Trommel manufacturer appears to be “BM SF CAL”
Anyone ever heard of an early San Francisco trommel manufacturer with initials “BM”?
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Old 05-24-2019, 05:03:20 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Quote:
Originally Posted by Monsonmotors View Post
And, what is a ball mill?
A ball mill is used to crush stone to powder, the stone would most likely go thru a crusher first, unless feed stock was already gravel sized. Basically its a large drum loaded with steel balls, the stone is fed into it, and as it rotates the stone is pulverized to powder, frequently used in mining operations. I'm no expert on the subject, maybe there were other applications.

Looking at your latest pics, I'm thinking a mining operation, or early concrete plant.
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Old 05-24-2019, 05:15:30 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

San Dimas did indeed have a cement irrigation pipe manufacturer to supply the citrus groves with irrigation pipe.
This picture appears to be taken on the San Gabriel Valley floor. Pretty sure no mines around. None that I’ve heard of.
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Old 05-24-2019, 05:21:18 PM
Monsonmotors Monsonmotors is offline
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Default Re: San Dimas, CA Pacific Electric Rock Crusher?

Has anyone seen this book or purchased it?
I suspect “BM” could be in it.
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