410 



GLOSSARY. 



vents it from travelling. (2) A short wooden prop, placed in a slant- 

 ing position to support the upper part of a seam during or after 

 "kirving" or undercutting. 



Squeezer. An apparatus used to check the progress of skips run- 

 ning loose on rails, by means of a weighted angle iron that presses on 

 the tread of the skip wheels. 



Squib. A tube of paper, a straw, or quill filled with fine-grained 

 gunpowder, at one end of which a slow match is fixed ; used for firing, 

 shots. 



Stall. A narrow chamber or breast. 



Stall road. A roadway along which coal worked in a stall is con- 

 veyed to the main roadway. 



Standard height. A given height of seam, say, 5ft., below which 

 the miner is paid so much extra for every inch. 



Standard selling price. An assumed price, not necessarily the 

 actual selling price, adopted so as to afford a basis for a uniform 

 hewing rate. 



Steam coal. A hard, free-burning, non-caking coal. 



Stem. To tamp a hole prior to blasting. 



Stemming. Material used in the operation of tamping a charged 

 hole ; also the process of tamping itself. 



Stcnton. A connection made between parallel roadways for venti- 

 lation purposes. 



Stint. The amount of work to be done by a man in a given time. 



Stone coal. Anthracite. 



Stone drift. A passage driven in rock instead of coal. 



Stone man. A man who works in rock, in contradistinction to 

 one who Avorks in coal. 



Stook. A block of coal a few yards square left to support the roof 

 in certain stages of pillar working. 



Stop. A device for blocking skips from proceeding when standing; 

 on rails. 



Stopping. An air-tight wall, built across a mine passage, in order 

 to direct the air current. 



Slower . Men who stow away waste in old workings. 



Straight point. That straight portion of the inner main rail be- 

 tween the rails of a turn-out. 



Stringer. A beam of timber placed longitudinally. 



Stripping a jig. The forming of a jig by enlarging a cut-through 

 on an incline. 



Stump. The pillar left between the roadway and each bord turned 1 

 off from it. 



Sulphur. Iron pyrites. 



Summing -hole. The first or opening cut made by a coal-cutter. 



Sweep-point. The curved rail of a turn-out that crosses the main 

 rails, and is moved against or from the outer main rail, according to 

 the track it is desired the skip shall run on. 



Sweep rail. The inner curve of a turn-out. 



Siritch. (1) The movable tongue whereby skips are diverted from 

 one track to another. (2) An arm used for changing the course of 

 an electric current. 



Tail sheave. The return sheave for an endless rope or the tail 

 rope of the main and tail rope system, placed at the far end of a 

 haulage. 



To mping . See Stemming. 



Tell-tale board. A board studded with hooks on which colliers 

 place a token on Avhich their special number is stamped, before enter- 

 ing the workings, so that the officials can know who is below. 



T< ndcr roof. A roof that requires to be well supported. 



Ti'uxinn pulley. A pulley round which an endless rope passes. 



