1986 - Page 28
Boring And Use Of Pajari Tropari Instrument
A further water problem was experienced at Sutton, re 52s and 54s Piper panels.
Malcolm R Bottomley (5747) HMI was investigating.
A Pajari tropari (clockwork timing borehole surveying instrument) was used to plot the direction and position of the hole at various distances.
This instrument from memory was about 6" (0.15m) long and about 2" (0.05m) dia.
The clock was set running for various times planned and pushed up the borehole to a planned distance.
When the clock stopped ticking a trigger would release a catch that would fix the free swinging gimbal and the needle for direction and also the angle of dip or rise.
By observing the information at the various points along a borehole the exact line can be plotted in plan and section.
The holes about 2½" (0.06m) were bored up into old workings from Silverhill Deep Hard seam to see if they contained water or not or gas that would prevent further working beneath same (Nottinghamshire ).
The Grassmoor Plant
In 1986 Ocean Transport and Trading sold the coal activities to Raab Karcher of Essen, Germany and traded under the name Cory Coal.
The plant at Grassmoor had processed 1.2m tonnes, but now that the Power Industry had privatised, new contracts needed to be won, and new competitive prices were thrown down as a gauntlet with restrictions etc on sulphur and chlorine introduced, as for British Coal.
The firm leased a site at Immingham Docks on the Humber for imported coal.
Colombian coal was processed and sold to Blue Circle Cement and Ketton Cement.
Other contracts were for coal to Staythorpe Power station and Padiham Power station near Burnley.
History was made when a record cutting distance of over a mile was achieved in one shift at Gedling (Nottinghamshire ) on 7th October 1986, and 1,000 tons of coal was produced in 7¼ hours from a face in the High Hazels seam.
Water From Teversal Reached Pleasley After 6 Years
The long expected water from Teversal Colliery (Nottinghamshire ), closed in July 1980, migrated from the shafts shown then via Top Hard roadways and Dunsil roadways into the First Waterloo seam workings and through the connection made into Pleasley on the day of closure.
As mentioned I went through that connection onto the old Waterloo face line that was more or less in excellent condition.
That was on the last day of production at Teversal in July 1980 when I had made a nostalgic visit there.
The water began to arrive at Pleasley (North Derbyshire) Deep Hard pit bottom in November 1986 at a rate of about 2gpm.
The Surveyor at Shirebrook / Pleasley informed me straight away.
The make of water would increase to about 5gpm by July 1987.
Firstly it was pumped into old dip side workings but would later have to be pumped through the connection to Shirebrook and raised there.
As part of my duties as Senior Surveyor Nottinghamshire Area I was in contact with the Surveyors in North Derbyshire Area at HQ regarding water problems almost every week, and particularly Mick Barber (5407) Unit Surveyor at Pleasley and monitored and documented the situation.
It seemed for once that a Derbyshire pit was receiving Nottinghamshire water instead of generally the other way round.
The higher management in Derbyshire didn't like it and soon a meeting was to be called at Coleorton HQ to agree on a price for pumping and which Area would pay for it.
Power-House Fully Automated
In December 1986, the power-house at Ollerton was fully automated as part of a manpower savings scheme.
See More Photos of Ollerton, Shane Philips and End For Ollerton, Bob Williamson
Small licensed mines:
- Doe Lea (Hampton Gold Mining Areas PLC) Top Hard, 33
- Moor Side (Moorside Mining Co Ltd) Eckington, Parkgate, 18
- Strathfield (H and C Hartshorne and Sons) Stretton, Tupton, 14
- Amber Valley colliery (H and C Hartshorne and Sons) Pentrich, Blackshale
- Bentinck Swinton Pottery Lower and Upper, start 19th July 1983 finished 25th Apr 1986. Several areas mined and quite a few old workings exposed in the Upper leaf and many tiny separate extractions with slack coal left. No sign of any shafts or adits
- Birch Hall Ashgate 3/3/1986
- Dixon site at Brimington was developing. It was 297 acres in size, working 11 seams and employing 75 people, however there had to be a temporary diversion of the river and canal
- Clay Cross Lidgett, 29,000 tons, June 1985 – May 1986
- Glaisdale Drive, Coombe seam 7/1986
- Glaisdale Parkway, Nottinghamshire , Coombe 4/1986
- Lings Furnace, Upper and Lower Brinsley, High Hazles, 1st St John’s, 2nd St John’s, Top Hard and old Dunsil 19/6/86
- Oakthorpe Main coal 27/9/1986
- Peasehill Road 1st Waterloo, Waterloo marker, 2nd Waterloo Upper 20/1/1986 – 19/6/1986