Here is a full extract from Eddy's report with surrounding context:-
"Atthe Adit or Day Level, a company of men are employed in driving across South tomeet the run of ground found so highly productive in the 192 yard level.
"The South Vein is to be seen inthe “bob-plat” at the 192 yard level, where it contains some nice ore, and somesmall bunches of ore were opened on it at the 252 yard level where a company ofmen are now employed in plundering @ £8 per ton (of ore).
"This vein has also been openedupon for a distance of about 20 yards in length at the 292 yards level, butwithout any discovery to notice – the vein however shows some strength and iswell deserving some further and spirited trials."
The observation was clearly made underground, at 192 yards below datum, not at the surface.
Andy
On Monday, 3 July 2017, 10:25, "Poyner, David" <[log in to unmask]> wrote:
Andy,
What is the full quote from Eddy in the report? I wonder if this represents development work to all pumping to happen below the 192 level?
David
-----Original Message-----
From: mining-history [mailto:[log in to unmask]] On Behalf Of Andy Cuckson
Sent: 03 July 2017 08:12
To: [log in to unmask]
Subject: Re: Bob-plat definition
Stephen Eddy was a highly experienced mine manager, so I think we can assume he knew what he was looking at. He was the Duke of Devonshire's Mineral Agent responsible for the Grassington mines.
The report says nothing about the surroundings where Eddy noticed the "bob-plat" - nothing about a shaft above or below, just that it was at the 192 yard level.
Maybe there is some significance in his use of inverted commas - "bob-plat" is how he actually wrote it.
Andy
On Monday, 3 July 2017, 9:59, Curator <[log in to unmask]> wrote:
There are very many references ‘cutting plat’ underground, usually referring to an area adjacent to a shaft in preparation for further work. Plats can also be cut at surface but you hear about it much less. If this bob plat was indeed a bob plat underground then by definition it would have been associated with pumping.
1. Did the reporter know what he was describing?
2. Could it have been preparatory work for deepening the shaft? (this doesn't seem very likely)
Pete
-----Original Message-----
From: Andy Cuckson
Sent: Sunday, July 02, 2017 9:12 PM
To: [log in to unmask]
Subject: Fw: Bob-plat definition
On Sunday, 2 July 2017, 22:44, Andy Cuckson <[log in to unmask]>
wrote:
It was at Snailbeach, at 192 yard level, as reported by Stephen Eddy in
1856.
He also reported that there was no pumping from below 192 yards then.
So this bob-plat, which Eddy writes in inverted commas, is a bit of a
mystery.
Any thoughts?
Andy
On Sunday, 2 July 2017, 22:12, Curator
<[log in to unmask]> wrote:
Andy,
Underground it would be an area cleared so that a balance-bob or angle-bob
could be put in. The first to counteract the weight of the pitwork and the
second to change the angle of same within a shaft. Which mine was this for?
Pete Joseph
-----Original Message-----
From: Andy Cuckson
Sent: Sunday, July 02, 2017 5:21 PM
To: [log in to unmask]
Subject: Re: Bob-plat definition
Thanks for that.
What might a bob-plat, not directly associated with an engine, be used for
underground?
Andy
On Sunday, 2 July 2017, 14:44, "Nance, R. Damian" <[log in to unmask]>
wrote:
Dear Andy,
The one Ken Brown and I used in our engine house book was (part in brackets
added):
One of two maintenance balconies cantilevered on either side of the beam
from the top of the bob wall of an engine house out to the end of the bob
[supported by the spring beams - a pair of large timbers extending from the
rear wall and used in conjunction with the main girder to prevent
overstroking].
Damian Nance
________________________________
From: mining-history <[log in to unmask]> on behalf of Andy
Cuckson <[log in to unmask]>
Sent: Sunday, July 2, 2017 2:00:17 AM
To: [log in to unmask]
Subject: Bob-plat definition
Dear fellow Listees,
Can anyone give me a comprehensive definition of a bob-plat please?
Best regards,
Andy Cuckson
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