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Mine Exploration Forum

Author Hand Drilling
Alasdair Neill

Joined: 10/12/2008

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Hand Drilling
Posted: 27/09/2011 10:31:39
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Is there anyone out there who is any good at hand drilling? Preferably in the Devon/Cornwall area. Looking for someone to possibly take part in a professionally produced video re mining in the Tamar Valley.
I am sure lots of people would give it a go, but to look convincing on film we will I guess need someone with a fair bit of practice. Probably not so easy to find the right person.
IP: 46.60.252.95
scooptram

Joined: 22/05/2007

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Hand Drilling
Posted: 27/09/2011 10:34:34
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have done some hand drilling bloody hard work and slow !

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mind that rock OUCH
IP: 86.139.36.77
Tamarmole

Joined: 20/05/2009
Location: Tamar Valley

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Hand Drilling
Posted: 27/09/2011 17:23:56
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I've done a bit both for the Edwardian Farm and for Blists hill. IP: 86.158.201.139
derrickman

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Joined: 18/02/2009

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Hand Drilling
Posted: 27/09/2011 18:44:21
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I've done it. Hard, slow, it's not easy to find the right steels either. Various references typically indicate a single-edge or cruciform bit about 20mm in diameter, smaller than modern steels because gunpowder doesn't require a standard diameter and its limited explosive force benefits from a small hole

Most photos show miners working in pairs with one swinging a two-handed hammer of about 10lb, hence the traditional song "Nine Pound Hammer" although larger ones were common, 14-16lb being a common size and the legendary hand-driver John Henry was said to use a pair of 20lb hammers. This may be a reference to a three-man team, with two men hammering simultaneously or alternating.



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''the stopes soared beyond the range of our caplamps' - David Bick...... How times change .... oh, I don't know, I've still got a lamp like that.
IP: 86.30.241.199 Edited: 27/09/2011 18:59:58 by derrickman
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