. Experiments in the preservative treatment of red-oak and hard-maple crossties . Fig. 1.—Cylinder equipment for experimental treatments. cylinder, A, are shown in side elevation; though, as actually erected,a number of them stand at right angles to the positions principal parts of this equipment are: Treating cylinder, A. Track scales (in front of cylinder door; not shown in drawing). Measuring tanks, B and B/. Gauge board, K (for indicating the levels of floats 28 and 29). Receiving tanks, D and D. Hydraulic pressure pump, H. Surface condensers, E and E. Hot well, F. Dry vacuum pum
. Experiments in the preservative treatment of red-oak and hard-maple crossties . Fig. 1.—Cylinder equipment for experimental treatments. cylinder, A, are shown in side elevation; though, as actually erected,a number of them stand at right angles to the positions principal parts of this equipment are: Treating cylinder, A. Track scales (in front of cylinder door; not shown in drawing). Measuring tanks, B and B/. Gauge board, K (for indicating the levels of floats 28 and 29). Receiving tanks, D and D. Hydraulic pressure pump, H. Surface condensers, E and E. Hot well, F. Dry vacuum pump, G. Air compressor, J. Air receiver, C. » Motor-driven, centrifugal, circulating pump, L (motor not shown in Fig. 1). Bu!. 126, Forest Service, U. S. Dept. of Agriculture. Plate Magnified Cross Section of Red Oak. Bui. 126, Forest Service, U. S. Dept. of Agriculture. Plate II,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectwoodpre, bookyear1913
