I've been following this with interest. Obviously the way the term is used in a Cornish enginehouse is irrelevant underground. But maybe it's nothing to do with engines, and we're thinking too hard. A "plat" in modern American and Australian usage is simply a level working space beside the shaft where trucks are loaded into or unloaded from cages. A "bob" has the general meaning of something going up and down - we talk about a boat bobbing on the water, or bobbing a curtsey. Perhaps in local usage the bob just meant the shaft, where things went up and down, and the bob-plat would simply be the plat, the working space beside the shaft. That would make perfect sense in the quote from Eddy's report.
> On 3 Jul 2017, at 5:31 pm, Andy Cuckson <[log in to unmask]> wrote:
> 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.
Dr Peter Bell
PO Box 574, Goodwood SA 5034
Mobile 0407 793 652
<[log in to unmask] <mailto:[log in to unmask]>>
If you need to leave the list, send the following message to [log in to unmask] -