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Gold Prospecting Forums - General => Do It Yourself Projects => Topic started by: graeme1955 on February 03, 2017, 10:43:20 AM

Title: old time rocker
Post by: graeme1955 on February 03, 2017, 10:43:20 AM
anyone out there ever build a rocker and use it on the fraser
Title: Re: old time rocker
Post by: Ronin Frog on April 10, 2017, 06:30:44 AM
I thought this thread was about Neil Young,I was gonna say I really liked "Rust never sleeps" that was my all time favorite album,(albums are vinyl discs pre-compact disc for the younger members)but I started loosening interest in his later albums.
Ronin Frog
Title: Re: old time rocker
Post by: mcbain on September 05, 2018, 08:40:26 PM
Hi.Rockers like every thing else antigue had a place in its day.I think if minors of the 1800s had  the equipment we do today they would have got 100 times the gold.Do not forget that the minor of old was very limited too the tools of the dayand they were very crude at the best.Luck,Mcbain.
Title: Re: old time rocker
Post by: Xplore on September 23, 2018, 11:13:54 PM
If you look at pictures of the old timers, and read about how hard they worked I can only imagine how much more gold they would have gotten with modern recovery methods.

Imagine those old cats with a top of the line Gold Hog highbanker instead of a crude wooden sluice or long tom.

I can only imagine their recovery would have been 50-70% at best (this is a guess).

What if all the guys using rocker boxes used a Gold Cube instead. Even if you knock the Cube it would still work circles around even the fastest rocker box.

That said, work with what you have - the important thing is getting out there and enjoying it!

-XPLORE




Title: Re: old time rocker
Post by: mcbain on December 28, 2018, 07:41:49 PM
Hi.Guys you got to remember.the oldtimers were experimenting.Yes thier crude tools of the day got some gold.Anything was better than a simple pan.The rocker box and the long tom were great improvements for the 1800s.But lets fast forward a few years.Somebody came up with expanded metal grating over top of cheap carpet.wow the gold capture improved a 100 times.But lets fast forward again.Expanded over minors moss.the greatest invention ever.Some still believe that.The recovery was awesome.But lets fast forward again.The invention of rubber vortex mats.The whole world jumped ahead by light years.Finally a product that can retain minus 300 mesh gold.and getting better every day.Want to go back in time build a rocker box.Luck,Mcbain.
Title: Re: old time rocker
Post by: geezir on December 29, 2018, 10:48:10 PM
Rockers were used on the Fraser because the miners could carry water to work with them.

The biggest problem the early Fraser River placer miners faced was water. Rockers were built sawed from the surrounding trees.  Water for the rockers could be carried up the banks to the claim site. By September of 1858 a sawmill was established at Fort Yale. By 1859 Water companies built ditches and flumes to supply miners water to operate sluices.
Title: Re: old time rocker
Post by: mcbain on December 30, 2018, 07:32:06 PM
Great for the day but they lost a lot ofgold.Just saying Luck Mcbain.
Title: Re: old time rocker
Post by: JOE S (INDY) on December 30, 2018, 10:02:55 PM
The old timers worked (usually) virgin ground often with poor mining knowledge - and just due to that richness from working new ground they were able to, somehow, find the easier Gold.  What they just couldn't catch using poor techniques and primitive equipment just ended up going back into the river. 

Today we have superior (comparatively speaking) equipment to (usually) rework the left overs from long ago. 

Very different situations, both working at the limits of the time and so both general groups recover all the Gold that they can. 

Would the old timers have done better using our modern equipment?  You betcha' they woulda'!   <-good_>
Title: Re: old time rocker
Post by: PioneerPauly on February 02, 2019, 05:31:26 AM
Ive got an old rockerbox I traded for some yard work when I was younger. I have never used it though. Thats all I have to say about that [<-panning->]
Title: Re: old time rocker
Post by: mcbain on February 02, 2019, 07:51:10 PM
Hey pauley.Tri it out.use a safety pan.you may prove me wrong :) Luck ,Mcbain.
Title: Re: old time rocker
Post by: graeme1955 on February 14, 2019, 10:22:49 AM
Just a thought to throw out there, why not equip a rocker with some of the new matting that is available out there and see how they would work?
Title: Re: old time rocker
Post by: JOE S (INDY) on February 14, 2019, 11:39:54 AM
Because the newer mats, like Gold Hog for example, are designed to retain material traveling 90 degrees to the drops and use a lot of water volume to flush through the lighter materials.  The water (and the drop of the box) does all the work of separation and flushing of lights with the direction of the slurry being straight down the box.

Some other mat types (like Vortex styles of conveyor belting) can't tolerate sideways sloshing of under watered slurry.  That matting requires a solid plane to function.

Rockers use very little water and  use the physical rocking motion to manually assist that minute amount of water to physically tumble the lighter materials diagonally across riffle barriers while hoping that the Gold somehow settles in a catchment within the system.  .  The classified slurry just zig zags down the box, moving mostly by being tumbled along that route and over riffles.

Rockers were used when there JUST wasn't a water flow (for example the beaches of Nome, small puddles of ground water or even muskeg) or some area where there was Gold but very little water flow.  Water doing the work was faster (OMG Yes!) and easier (Yep, that, too!).  The great advantage of a rocker is that it CAN work in very limited, totally hand dipped water.  Add a pump and you go back to a highbanker sluice box.

Two completely incompatible systems.

Title: Re: old time rocker
Post by: mcbain on February 14, 2019, 07:36:51 PM
Hi.My geolegy friend built a copy of the fraser river rocker and it does work.If you can drive to your work site.Unless you are Paul Bunyan you are not packing this thing anywhere.And yes it lost fine gold same as 150 years ago.Just saying ,Luck Mcbain.