. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . y^ I ULLtU lU it / B J through which / ^— ore is passing, iL-^^ small portion ( Fig McDermotts automatic sampler. instant into the sample box, II;original position by spring, arrangement of long-armedlever. A, with spring returnenables the slow revolving wheel,D, not to take samples too fre-quently, nor too large ; so thatthe machine can run all day andnot take too bulky a sample forconvenient handling. The d
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . y^ I ULLtU lU it / B J through which / ^— ore is passing, iL-^^ small portion ( Fig McDermotts automatic sampler. instant into the sample box, II;original position by spring, arrangement of long-armedlever. A, with spring returnenables the slow revolving wheel,D, not to take samples too fre-quently, nor too large ; so thatthe machine can run all day andnot take too bulky a sample forconvenient handling. The divid-ing launder splits up the streamof pulp in a large mill for thesame purpose, viz.: to keep sam-ple small, by passing samplespout, C through only a part ofthe stream. This machine can be adapted to mills in operation. Fig. 4.—Colloms automatic sampler. where -fall is limited. 602 ORE SAMPLING. «^- either by making a few inches drop at some point in the main launder, which carries thepulp or tailings, or, if this is not practicable, by using a long dividing launder, B , being narrow and of metal, will clean itself with loss fall tlian the main woodenlaunder. The frequency of the samples can be indefinitely increased by adding pins to thegear-wheel. D, or increasing the speed of the worm shaft. E. The size of each sample takencan be varied bv the widths of the dividing launders and of the sampling spout, (J; thesebeing of thin sheet-iron, can be bent by hand to the desired width. Collom\ Automatic Sampler, Pig. 4, is constructed upon the same principle as the Me-Dormott. but the sample spout is fixed to the end of a horizontal arm, which is revolvedslowly by means of a bevel gear, cutting a sample of the falling ore each time il passestlirough it. Bridgemnns Automntic Sampling 31arhittr is
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
