GLOSSARY OF MINING TERMS(N)

Nagar, a term used in the Bristol area for a hand drill or ‘jumper’.

Naked lights, an unprotected light. An open oil lamp or a candle.

Nannies, natural cracks, joints or slips, in the coal measures. (Yorks.).

Nappling, large lumps of coal left over after screening.

Naps, calcareous nodules occurring in the red Etruria Marl. (N.Staffs.).

Narrow board, an excavation of the same length as a wide board, but driven two yards wide.

Narrow work, a stall 3yds. in width or under was classed as ‘narrow work’ for which an extra price per yard above the hewing rate would be paid. The system was used extensively, but not exclusively, in Yorkshire to prevent roof weight from crushing the pillars before they could be worked. A modified pillar and stall system applied to seams with a tender roof.

Narrows, -see Head-ways.

Natch, a ‘sneck’ or joint in the tub rails; or a small ‘hitch’ or fault in the strata. (Scot.).

Nattle, a slightly increased action of creep. -see Fissle.

Natural parting, a plane in layers of coal or between the coal and the floor or roof, or in the strata, where they will separate easily, also called an ‘easy parting’.

Natural ventilation, ventilation that is provided without the assistance of fans or furnaces.

Neb, break (N.East).

Needle, to set one end of a wooden bar into the coal face as a temporary support.

Needle coal, -see Lignite.

Nesh, very fragile. (N.Staffs.).

Nether coal, the lower sections of a thick coal seam. (Mids.).

Nether roof, the roof strata for a short distance above any underground excavation.

Niche ring, winding drum for flat wire ropes.

Nick, Nicking, to cut the coal vertically from floor to roof next to the side of the place; or to undercut the seam similar to kirving, preparatory to taking down the ‘jud’. (N.East). Also known as ‘slotting’. In Scotland it was called ‘shearing’.

Nickings, the small coal made when nicking. (N.East).

Nicks, notched sticks used for reckoning. (Yorks.).

Nip or Nip-out, when the strata come together and meet, nipping-out the coal seam. A drift would be driven forward though the ‘nip-out’ to find the coal on the other side. Also called a ‘check-out’ or ‘want’, or to cut grooves at the end of roof bars to make a better fit; or the effect produced upon the coal pillars by creep, a crush or squeeze.

Nipple, a term used to describe the sound made by the roof as it settled or when it was weighting. (Mids.).

Nitch wheels, a drum or ‘pirm’ that was used when a winding engine was fitted with a wood-chain. (S.Staffs.),

Noddy, a peg board, either circular or straight, in shape used to keep a tally of the amount of puts or carriages each drawer brought out of the workings. (Som.).

Nodger or Noger, a boring bar or jumper. (Derbys.).

Nog, Holing nog or Sprag, special wedge shaped wood or steel wedge used in undercutting or holing to support the coal after cutting, placed in the cut at regular intervals along the face (usually not greater than 6 feet). -see also Cog and Chock; the term Nog is also used for a collier’s tally placed on a tub leaving the pit. (Bacup, Lancs.), or for a wooden chock used to build packs. (Derbys.).

Non-seat, a chain attached to the winding rope for lowering and raising men in the shaft. (Mids.).

Nook or Neuk, a corner of a working place at the face. (Lancs.); or the corner of a pillar of coal. (N.East).

Nooper, a large pick used for dressing or straightening the coalface. (Leics.) -see also Dresser and Noper.

Noper, a mandrill or loading pick. (Derbys.), (Leics.).

Notched, in a support set where the posts are slightly let into the bars, they are said to be ‘notched’. This was common in N. Staffs. Also called ‘lipped’. (N.Staffs.).

Normal fault, a fault that hades or is angled towards the downthrown side.

Nubber, a block of wood about 12ins square used to throw runaway tubs off the rails on an incline haulage road. It was placed between the rails when a run of tubs had gone bye. (Mids.).

Nucleonic steering, automatic horizon control of a power loader by means of a radioactive sensor reacting against the roof or floor of the seam.

Nug, the dull sounds that are created when the roof begins to weight. (Scot.).

Number snatcher, Man responsible for the listing of numbers on incoming empty railway wagons and the recording of date and time received. (N.Staffs.).

Nuts, small pieces of coal or re-screened small coal, smaller than stove coal and larger than pea coal. Also called ‘chestnut coal’.

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