. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . carried ontwo rows of link-belt cluiius, running over a wheel (34). or by some similar device. The coalis thus dragged up an inclined plane and discliarged. the water carried with it draining backto tlie jig. The slate passes out through an opening in the side of the jig just above the sieve,which id regulated by an adjustable slide, into a flat cast-iron hopper (!)). Tlie bottom of thishopper is closed by a gate, w
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . carried ontwo rows of link-belt cluiius, running over a wheel (34). or by some similar device. The coalis thus dragged up an inclined plane and discliarged. the water carried with it draining backto tlie jig. The slate passes out through an opening in the side of the jig just above the sieve,which id regulated by an adjustable slide, into a flat cast-iron hopper (!)). Tlie bottom of thishopper is closed by a gate, which allows neither .^late nor water to esca[)e. This gate isopened at proper intervals, the upper opening from the sieve to the hopper being closed atthe same time, and the accumulated slate discharged from the hopper into a trough, whenceit is removed by a suitable conveyor after having been inspected. For jigging fine coal similar jigs are used, but the sieves are bedded with feldspar or likematerial of approximately the same specific gravity. In jigs of this class the slate dischargesthrough a goose-neck outlet instead of oneof the kind shown in Fig. 4. or else through. ve into the hutcii below,drawn through a proper
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
