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About The west shore. (Portland, Or.) 1875-1891 | View Entire Issue (Aug. 1, 1889)
THE WEST SHORE. adding materially to the product The new brick and iron kilna yield nearly fifty per cent more lime than the old stone ones in proportion to their capacity. It takes about forty-eight hours for rook to pass through the old kilns, a drawing being made every three to four hours, while in the new ones a much larger draw-. being suspondod from the top by strong ropes to per form this work. In those a strong charge of powder is placed, and erery noon and night after the men iait work the Hints are fired, the object being to shatter the rock as much as possible. The next mnrninff (lift Uma rock ii all Drized down to the bot- . . . ill !.!. 11 torn of the quarry and the work of drilling resumed, ing made at snorter interval in ine new ones, The stone is first loaded upon dump cars, the large ; also, a system of drafts has been adjusted to the cool, pieces Uiinu fint broken to a proper size with sledge er so that a current of fresh air ifl constantly passing w . . . . ... : in. i... n i! ii ;ii ii around tne lime, mus cooiing ii more rapiaiy man formerly and facilitating the operation of barreling it, as well as adding to the comfort of the operator by drawing off both the hot air and the dust When the lime in the cooler is sufficiently deprived of its heat to admit of being handled safely, the barreler grasps the lever whioh opens the bottom and pushes it to one side, and the lime slides out and down the chute to the opening in front of him. He then places a barrel up on the scales under the mouth of the chute, and with a combined hammer and rake draws the lime into the barrel, breaking open every suspicious looking piece to be certain that it is thorough ly calcined and contains no "core." Thus every ounce of it is carefully examined by hand, every particle of " core " is removed (it be ing seldom found), and the lime is put up entirely free from dirt or any other for. eign substance. As fast as one barrel contains enough to indicate two hundred pounds on the scales, it is set to one side and another is taken from the bottom of the barrel chute, leading from the store room above, and placed on the scales. The barrels are then taken in hammers, and the cars are pormitted to roll down the track to the various bins located above the kilns, into which the stone is damped. In this way the bins are kept fall, a loaded car be ing left in front of each bin when work is stopped in the quarry at night, to bo used flrit in the morn ing, as the kilns are kept rannin and d cars w the quarry by a cable, the sama power that rum the drills being used for this purpowi This dopartmeut is in charge of Mr. Harry Banders as foreman, an ex. rienotl quarryman and bluter. The Monitor kiln now in dms inreuted and pat rnUl by M. U IVItou, dif. fers materially from the stone one previously do. scrilwd. It ooniiiU of two thlckneues of fire brick and oua row of red brick, all enclosed in a jacket of boiler iron a space til two hchea between tU .ri..V VV, til 111,1 Dim i.A.A luilttf All.. 1 'iL leeched aibes or small travel, whirh ' V If serve. Uih as a non-couJuctor of heat and to re lievs the kiln from the f ffects of the great expan sioo while burning. This retaiu. the hMi ,,. ated by the fieroo fire constantly maintained in the aconstantlvbynicht Nfc if: fl ITTT UtX ill be drawn back to sjjsgy - - :trhSJ fl fj TN 11! TJT" . - m IS. A. . T3 . In 'vmj "Sj y m m -a' 44,r 1 T ur I.IMK KUJfg, furna ao perfectly that the exterior of the kiln , r a t , barre1' Me tben M 1 never become, warm that uXllt I LM b' tb. who quickly and deftly lay in held against it comfortably. The kiln hold, about thirty tons of rock, and is alway. full, as it i. charged with new rock from the bin u fut as lime is drawn off from the button, It ha. two fu,nac, one on the kiln, creating a bettor draft and more rU the heads, set the top hoop in place, nail it and brand the head "Roche Harbor Lime, Ban Juan." The burning department is in charge of Mr. Charles Erick son, who ii also the general foreman of the entire manufacturing business. A system of tracks runs through the lime sheds leading to the warehouse, and on this runs a long, niWLUuiiLin. ulna nr)raa n . bg lbs Urns consumed in the proJ of LT I J1.0?' Dpn which lhe filll barrelo are loaded and l roe, of burning, I hauled by horse power to the warehouse on the dock,
