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Mine Exploration Forum

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Author Abercwmeiddaw - Hunter tunneller
thorpey

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Joined: 06/08/2007
Location: tywyn

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Abercwmeiddaw - Hunter tunneller
Posted: 02/04/2008 22:31:05
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today I nipped back up to abercwmeiddaw and took some more photos. The scoring made by the unit entering and exiting the bore


(click image to open full size image in new window)

and the pitch of the groves.


(click image to open full size image in new window)
the end of the long bore has been worked by han by drilling.


(click image to open full size image in new window)

the single bore is only about 10 feet long and we did not quite make it in.
Thorpey

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Nut deep in water!
IP: 84.64.218.16
Gwyn

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Joined: 23/10/2007
Location: Bethesda.

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Abercwmeiddaw - Hunter tunneller
Posted: 03/04/2008 19:53:42
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You're a gem, Thorpey, thank you very much indeed for the pictures.
I'm still here on this subject, it's just that I went back to review all I've got on the matter (mostly thanks to Grahami Thumbs Up ) and also do some research on Wolfram/Tungsten as well as reading up on the Roebling family (wire rope).. etc!
Thumbs Up
IP: 172.143.49.241
keithwn

Joined: 16/11/2017

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Abercwmeiddaw - Hunter tunneller
Posted: 28/03/2019 15:43:15
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Hey guys
The Hunter Tunneller was used in the late 1860's to bore the Rhos Goch Adit to drain the lower part of Cwm Machno Quarry.
This exits at https://www.google.com/maps/place/53%C2%B000'28.4%22N+3%C2%B051'30.6%22W/@53.007899,-3.8595883,326m/data=!3m2!1e3!4b1!4m14!1m7!3m6!1s0x48651313e0ed3aed:0xd7141857547e1daa!2sCwm+Penmachno,+Betws-y-Coed+LL24+0RP!3b1!8m2!3d53.010257!4d-3.856949!3m5!1s0x0:0x0!7e2!8m2!3d53.0078989!4d-3.8584941
IP: 86.165.211.246
Morlock

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Joined: 31/07/2008

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Abercwmeiddaw - Hunter tunneller
Posted: 28/03/2019 16:10:04
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That links to an email address? IP: 86.153.161.171
keithwn

Joined: 16/11/2017

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Abercwmeiddaw - Hunter tunneller
Posted: 28/03/2019 16:21:15
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Weird! Take the 'mailto:' off
https://www.google.com/maps/place/53%C2%B000'28.4%22N+3%C2%B051'30.6%22W/@53.0078889,-3.8595688,334m/data=!3m2!1e3!4b1!4m14!1m7!3m6!1s0x48651313e0ed3aed:0xd7141857547e1daa!2sCwm+Penmachno,+Betws-y-Coed+LL24+0RP!3b1!8m2!3d53.010257!4d-3.856949!3m5!1s0x0:0x0!7e2!8m2!3d53.0078989!4d-3.8584941
IP: 86.165.211.246
grahami

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Joined: 29/01/2007
Location: Telford, Shropshire

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Abercwmeiddaw - Hunter tunneller
Posted: 28/03/2019 17:51:29
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The general consensus seems to be that the Rhos Goch tunnel was driven (at least in part) by one of Hunter's tunnellers - probably the first version - based on the groove marks in the bore, but no-one has as yet come up with any connection between the quarry and either George Hunter or W.F.Cooke who were involved at Maenofferen. It would have been an interesting exercise to get the machine from Maenofferen over to Cwm PenMachno and, presumably back again. The bored length is about 46.5 ft long and given the usual rate of boring of such a machine of 5-8 inches per hour would have taken a considerable time especially as the machine would have had to have been withdrawn from the tunnel regularly to enable the "core" to be extracted (the maximum cutting depth was approximately 2ft - up to 3 hours work)!

It has been suggested that Rhos Goch may have been the site of a trial by Brunton's boring machine, but this is tenuous with even less evidence.

Grahami

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IP: 84.13.100.249
stevem

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Joined: 21/08/2006
Location: Wirral

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Abercwmeiddaw - Hunter tunneller
Posted: 29/03/2019 11:42:43
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It is an odd one...
goes from this



(click image to open full size image in new window)
thru this


(click image to open full size image in new window)
bored section


(click image to open full size image in new window)
to this in natural rock at the end (now filled in)


(click image to open full size image in new window)

Its a little bit moist at the first part as well...

--

May the fleas of a thousand camels infest the crotch of the person who screws up your day and may their arms be too short to scratch.
IP: 192.171.135.69
keithwn

Joined: 16/11/2017

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Abercwmeiddaw - Hunter tunneller
Posted: 05/04/2019 22:02:25
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Thanks Graham
Interesting
IP: 86.163.96.238
grahami

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Joined: 29/01/2007
Location: Telford, Shropshire

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Abercwmeiddaw - Hunter tunneller
Posted: 06/04/2019 12:51:40
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No problem - if you havn't seen it there's my paper on the various Hunter machines,including the several tunnellers available on here:

www.aditnow.co.uk/documents/Personal-Album-54/The-Hunter-Machines-inc-Illus.pdf

As well as the discussion linked to earlier.

Grahami

--

The map is the territory - especially in chain scale.
IP: 89.240.191.64 Edited: 06/04/2019 12:59:54 by grahami
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