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F. THE

AGRICULTURAL MAGAZINE,

NO 1XX17 JUNE, 1805.[VoL. XII.

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DESCRIPTION OF A NEWLY INVENTED MACHINE FOR RAIS- ING COAL, SALT, ORE, RC. FROM DEEP PITS,

[WITH A PLATE ANNEXED.]

To the Editor of the Agricultural Magazine. STIH» H AVING lately made a tour through the Northern coun-

wes of England, curiosity led me to examine the coal and Salt pits, and ore mines, in Derbyshire, Lancashire, and Cheshire; but what more particularly attracted my attention, was the mode of raising the coals,&c.

The pits are generally worked by means of a horse machine, called a jin or ginn; 1 learnt on enquiry and from my own observation, that a Steam engine posSesSes Several advantages over those machines, which are as follows.

1st. As horses, asses, and mules, are employed in this Sers vice, a great proportion of time is.lost in turning the wheel a contrary way, which from the construction of the jia now in use, renders it necesSary every four or five minutes.

2d1y. That two horses are unable to raise more than four or fßve hundred weight at once, when the Steam engine will draw Up double the quantity in the Same Ume.

3dly. Should tbe beam to wbich the borses are attached or the tackle, break, 50 as to Separate the horses(rom the wheel during the time the coals are drawing up, the contents of the bucket would fall, and be liable to kill ihbose who may be at the bottom of the well.

athly. It Sometimes happens that a greater coal is drawn up tban the horses are well able to raise from very deep pits, and when those cases oceur, it wonld be-convenient: to Stop Lie horses for ihe purpose ot taking breath, but they are unable to Stand Still, having tbe whole weight to Support at tue Same ume

1 have Sent you a drawing of a machine, which is, in my opinion, constructed to remedy all tie ätoremeutioned t1CoUN- venieuces; it is calculated that two horzges will rale ten hun-

Ag. Mag. Vol. 12. 3 E

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