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Posts by Graigfawr

Showing 834 results below:

Author Message
Topic: NAMHO Conference Proceedings 2015-2018
Graigfawr

Forum: General Chat   Posted: 21/03/2018 17:35:09   Subject: NAMHO Conference Proceedings 2015-2018
Many thanks indeed for confirming the status of the 2015 to 2017 conference publications - I now know what to look out for.
Topic: NAMHO Conference Proceedings 2015-2018
Graigfawr

Forum: General Chat   Posted: 14/03/2018 17:35:03   Subject: NAMHO Conference Proceedings 2015-2018
The latest NAMHO conference proceedings to be published are for the 2014 conference, and there seems to be no hints on the NAMHO website clarifying whether later conferences will have their proceeding
Topic: Happy Christmas
Graigfawr

Forum: General Chat   Posted: 08/03/2018 20:30:37   Subject: Happy Christmas
Unseemly haste on the pud front.

Our chocolate stock will see us into summer at this rate.
Topic: Wheat lovelle engine house
Graigfawr

Forum: South West England   Posted: 04/02/2018 17:55:08   Subject: Wheat lovelle engine house
See this thread for a previous discussion concering this engine house and shaft: https://www.aditnow.co.uk/community/viewtopic.aspx?t=12931
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 13/01/2018 21:50:54   Subject: Milwr Tunnel & Olwyn Goch news
My initial post was in response to Edd's humorous post about still being able to have a family despite exposure to radon in mines: I was observing that the main risk arising from exposure to the sorts
Topic: Repurposing
Graigfawr

Forum: General Chat   Posted: 13/01/2018 16:01:03   Subject: Repurposing
Archive store (Winsford Salt Mine, Cheshire, 2000s on). Long term not war time only as in storage of art treasures in Gwynedd slate mines which is otherwise rather comparable.

Gas storage i
Topic: Repurposing
Graigfawr

Forum: General Chat   Posted: 13/01/2018 15:37:47   Subject: Repurposing
[quote="mistericeman"]Hydro electric pumped storage power station[/quote]

Similar but lower tech approach:

Used to store winter water to be released during summer droughts to kee
Topic: Repurposing
Graigfawr

Forum: General Chat   Posted: 13/01/2018 15:34:10   Subject: Repurposing
[quote="legendrider"] Dark Matter Observatory (Boulby)
[/quote]

In similar scientific vein* :

Underground monitoring station for crustal tilting due to sea tide influences
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 13/01/2018 15:24:23   Subject: Milwr Tunnel & Olwyn Goch news
[quote="Edd"]A few of us camped over night in the limestone workings a few years back and 2 of us have had children since then so no lasting effects :lol:[/quote]

The main risk is an increa
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 08/01/2018 18:27:19   Subject: Milwr Tunnel & Olwyn Goch news
Thanks Staffordshirechina, Morlock and everyone else for most informative links and summaries. Taken together they provide a most useful impression of the works and how the tunnel has been accessed to
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 07/01/2018 22:36:28   Subject: Milwr Tunnel & Olwyn Goch news
Thank you for this interesting update. Do you know how the contractors are gaining access (boat?) and where they are removing spoil to (surface by boat / stacking in side tunnels?)?

I atten
Topic: Does anyone know what this building was for?
Graigfawr

Forum: General Chat   Posted: 07/01/2018 20:02:08   Subject: Does anyone know what this building was for?
[quote="trebor"]would concrete roof be original ?[/quote]

There is an extant small early C20 power house at a south Wales mid size drift mine with a similar thin concrete roof; this buildin
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 05/01/2018 23:29:44   Subject: Milwr Tunnel & Olwyn Goch news
[quote="Morlock"]From memory, the SWCC trip was a bit of an epic adventure.;D[/quote]


I heard parts of it from some of the SWCC members who were there - they were swept along by the c
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 05/01/2018 23:17:25   Subject: Milwr Tunnel & Olwyn Goch news
[quote="The Fresh Prince of Portreath"]Proper caving clubs in the 60s had spirit and balls. They made men of a different sort then.

The Plymouth Caving Group once did a shaft with 500ft of
Topic: Milwr Tunnel & Olwyn Goch news
Graigfawr

Forum: North Wales   Posted: 05/01/2018 21:17:07   Subject: Milwr Tunnel & Olwyn Goch news
Video (made 2015 seemingly) of a through trip from Rhydalun to Milwr Adit portal https://www.youtube.com/watch?v=Fxz8TktKJkw&feature=youtu.be&t=2s

Allowing for falls and deterioration of
Topic: Cwmystwyth Mine - May 1984
Graigfawr

Forum: Mid Wales   Posted: 05/01/2018 21:00:24   Subject: Cwmystwyth Mine - May 1984
The smaller building below the road was built as No.1 Crusher House: there had been a waterwheel to drive the rolls; it was located in gap between the long side of the building seen in the photo and t
Topic: Cwmystwyth Mine - May 1984
Graigfawr

Forum: Mid Wales   Posted: 05/01/2018 20:51:36   Subject: Cwmystwyth Mine - May 1984
Mining on any scale ceased in the later 1920s and the majority of men were paid off around 1930 (this date from memory - I examined the last pay book some years ago) and only a couple of caretakers ke
Topic: Craig -y -Dinas Upper Silica Mine
Graigfawr

Forum: South Wales   Posted: 05/01/2018 19:33:05   Subject: Craig -y -Dinas Upper Silica Mine
3D laser scan made of Dinas Silica Mine in Christmas period: https://ukcaving.com/board/index.php?topic=22965.0;topicseen Might be interesting to see the results?
Topic: Cwmystwyth Mine - May 1984
Graigfawr

Forum: Mid Wales   Posted: 05/01/2018 17:26:22   Subject: Cwmystwyth Mine - May 1984
Thanks - these brings back memories. The mill was starting to get shakey just at this time and the remaining slate roofs seen on Staff House and Cwrt in your photos would soon disappear.

In
Topic: NLS map viewer extended
Graigfawr

Forum: Exploration Chat   Posted: 02/01/2018 23:08:52   Subject: NLS map viewer extended
[quote="robnorthwales"]A considerable amount now added to the georeferenced section of the mapping at 25 inch scale. Including a considerable part of Wales[/quote]

That's as much as NLS hol
Topic: Denys Bradford Barton
Graigfawr

Forum: South West England   Posted: 31/12/2017 23:21:48   Subject: Denys Bradford Barton
The quality and usefulness of Barton's books is specially impressive when you consider that there was much less available when he was researching and writing:

Most mining history books and
Topic: Battery charging warning
Graigfawr

Forum: Lamps & Lighting   Posted: 26/12/2017 18:51:49   Subject: Battery charging warning
My first lead mining trip in 1981 (I'd been surveying other mines since 1976) was lead by SH of Talybont: he loaned me a Nife cell ... it had a manufacturer's plaque with the date '1948' on it and it
Topic: the "origional" name of the crimea pass ?
Graigfawr

Forum: General Chat   Posted: 22/12/2017 21:02:28   Subject: the
Top of a long hill was a good place to change coach horses over, hence the inn or hotel.

Many short hills have a spot or house at the top called 'Cold Blow' - which is where horses were giv
Topic: Acrow jacks, trench struts and base jacks
Graigfawr

Forum: General Chat   Posted: 21/12/2017 23:42:27   Subject: Acrow jacks, trench struts and base jacks
£40 for four base jacks sounds a little expensive, Ten years ago when I last bought trench struts they were just over £20 each new including VAT (they vary a little in price according to length).
Topic: Battery charging warning
Graigfawr

Forum: Lamps & Lighting   Posted: 21/12/2017 23:41:14   Subject: Battery charging warning
Reverting briefly to the effects of low temperatures on discharge characteristics, it was well known among winter climbers that old fashioned dry cells (non-rechargeable) last for far shorter periods
Topic: Acrow jacks, trench struts and base jacks
Graigfawr

Forum: General Chat   Posted: 20/12/2017 20:50:26   Subject: Acrow jacks, trench struts and base jacks
Interesting topic over on uk caving: https://ukcaving.com/board/index.php?topic=22896.0;topicseen

Gave me some new ideas for supporting digs. I've used acrow jacks and trench structs but
Topic: Christmas pressie for someone?
Graigfawr

Forum: South West England   Posted: 16/12/2017 15:12:57   Subject: Christmas pressie for someone?
East Wheal Lovell.

Interesting engine house configuration with an off-set cylinder arch and chimney at the end opposite to the shaft.

Its a wide cylinder arch - clearly a major
Topic: There be gold...
Graigfawr

Forum: Mining Heritage   Posted: 01/12/2017 17:42:56   Subject: There be gold...
Thanks for the additional information.
Topic: There be gold...
Graigfawr

Forum: Mining Heritage   Posted: 30/11/2017 18:02:02   Subject: There be gold...
Pioneers indeed! What with snow and stags (almost moose...), almost an Alaskan experience!

Were you working for yourselves, or as contractors?

1.02kgs = 32.8 troy ozs; at $386.2*
Topic: Unique watermark?
Graigfawr

Forum: General Chat   Posted: 28/11/2017 19:21:23   Subject: Unique watermark?
A number of very large companies had their own watermarks applied to paper: it only required a brass wire pattern in the shape of the letters and any symbol to be brazed onto the brass wire-mesh drum
Topic: NLS 25" maps of Wales
Graigfawr

Forum: General Chat   Posted: 24/11/2017 20:21:02   Subject: NLS 25
The 1938 and 1948 editions of the six-inch have the National Grid squares on the face of the map.

All editions of the six-inch have latitude and longitude printed in the margins.

Topic: Colour mineral tramway etc footage
Graigfawr

Forum: General Chat   Posted: 21/11/2017 20:41:20   Subject: Colour mineral tramway etc footage
[quote="SimonRL"] Is that Pant Hywel coal mine at 1:03:50 ?[/quote]

Stradey Level, Llanelli, filmed in 1966 a year prior to closure.

See these threads from 2010 and 2013 for deta
Topic: Whitehaven redevelopment
Graigfawr

Forum: North West England   Posted: 13/11/2017 17:50:02   Subject: Whitehaven redevelopment
Quite a lot of information here: http://www.welshcoalmines.co.uk/forum/read.php?4,58237
Topic: cwmystwyth level fawr
Graigfawr

Forum: Mid Wales   Posted: 31/10/2017 22:57:33   Subject: cwmystwyth level fawr
The 'Hudson' type tram body at rockhead in Lefel Fawr was on surface on one of the tips (it is probably one of the bodies and trams that appear in 1960s photos) prior to North Cardiganshire Mining Clu
Topic: cwmystwyth level fawr
Graigfawr

Forum: Mid Wales   Posted: 31/10/2017 20:49:37   Subject: cwmystwyth level fawr
[quote="royfellows"]...the bucket if that's the correct term...[/quote]

'Tram body' would be a correct term; alternatives exist - e.g. a C20 term in some coalfields is 'tub'.

I c
Topic: Miners' greeting
Graigfawr

Forum: General Chat   Posted: 19/10/2017 23:16:38   Subject: Miners' greeting
Have never heard or read of a mining-specific customary greeting of the Gluck Auf type used by Welsh coal or metal miners.
Topic: One for the steam buffs
Graigfawr

Forum: General Chat   Posted: 19/10/2017 17:25:10   Subject: One for the steam buffs
Curator in the National Slate Museum may have oral history recordings from former quarrymen who worked underground (as opposed to surface quarries) which may throw light on terminology, both Welsh and
Topic: One for the steam buffs
Graigfawr

Forum: General Chat   Posted: 18/10/2017 21:59:36   Subject: One for the steam buffs
Margot, in response to your enquiry:

The steep descent to the head of the compressor in chamber 33 on DE floor in the Old Vein was originally equipped with a wooden staircase - the inclinat
Topic: One for the steam buffs
Graigfawr

Forum: General Chat   Posted: 18/10/2017 20:25:02   Subject: One for the steam buffs
[quote="Margot"]I remember once being in Cwm and someone suggesting we go down the manway, upon which Sinker suggested it was a personway. That was very nice of him! If this sort of stuff happens more
Topic: Hendre Mine for sale
Graigfawr

Forum: North Wales   Posted: 15/10/2017 17:53:16   Subject: Hendre Mine for sale
The access adit does however appear to lie within the property being advertised.

What were the buildings latterly used for? I had the impression a firm was drawing wire there?
Topic: exploring new mines
Graigfawr

Forum: North Wales   Posted: 15/10/2017 17:45:00   Subject: exploring new mines
There is a shaft marked the OS 1:2,500 1899 ed on the National Library of Scotland website, 100m ENE of Nantlle Terrace at roughly the grid reference that Foster-Smith gives: see my post up-thread. T
Topic: exploring new mines
Graigfawr

Forum: North Wales   Posted: 15/10/2017 00:06:43   Subject: exploring new mines
Recorded non ferrous metal mines / trials in the area around Dorothea Slate Quarry are:

Gwernor SH 504 / 523 - minor pre-1850 working, discussed up-thread.

Ty-mawr SH 509 / 534
Topic: exploring new mines
Graigfawr

Forum: North Wales   Posted: 14/10/2017 22:55:22   Subject: exploring new mines
The adit over the ridge (south) of Smydde Dylluan Mine sounds like Mountain Lode which comprises three trial adits driven in 1920-23 on two lodes containing copper-lead-zinc minerals. The working is s
Topic: Aged Members
Graigfawr

Forum: General Chat   Posted: 14/10/2017 16:54:08   Subject: Aged Members
My day job is in the archives and museums sector so it might be useful if I gave an insight and explanation from the 'other side of the fence'. I have no knowledge at all of Roger L's collection so th
Topic: exploring new mines
Graigfawr

Forum: North Wales   Posted: 11/10/2017 19:19:24   Subject: exploring new mines
Additional ref. for Bronygadair or Porthmadoc:

J.R.Foster-Smith "The mines of Anglesey and Caernarvonshire", British mining no.4, Sheffield, 1977, p.33; this contains a few further refs.
Topic: cwmystwyth level fawr
Graigfawr

Forum: Mid Wales   Posted: 04/10/2017 22:08:36   Subject: cwmystwyth level fawr
The timberwork supporting the deads adjoining the ore chute on Level Fawr West Drivage on the Kingside Vein a couple of yards east of the crosscut has not given me confidence for a couple of decades -
Topic: Copper forge in Normandy
Graigfawr

Forum: Mining Methods & Techniques   Posted: 20/09/2017 23:32:31   Subject: Copper forge in Normandy
[quote="D.Send"]Hi Graigfawr,
If you can read french, I can send you some typed transcripts of Mouchel extracts, perhaps as a private message.
Regards,
D.Send.[/quote]

Many t
Topic: Mining term: Bouse
Graigfawr

Forum: General Chat   Posted: 20/09/2017 23:26:44   Subject: Mining term: Bouse
Concerning "De re metallica", as its a C20 English translation by American authors, of a Latin original, written by a German, it is maybe not surprising that dialect terms have been lost along the way
Topic: exploring new mines
Graigfawr

Forum: North Wales   Posted: 20/09/2017 23:13:38   Subject: exploring new mines
[quote="rufenig"][quote="Vanoord"]

In fact, exploring was proper exploring before the interweb...[/quote]

Yes
Get to the end of an "unexplored" adit and find D.E.B & G.H. w
Topic: Coed Mawr Pool, any recent info please
Graigfawr

Forum: North Wales   Posted: 20/09/2017 23:02:20   Subject: Coed Mawr Pool, any recent info please
Natural Resources Wales which have been looking at blow out risks at disused mines across Wales. I first became aware of this study when Cambrian Mines Trust, Cadw and other stakeholders attended a me
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