Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . tion sliows tlie tool operating on the inrerior of alargH Piistinrr, Planer-centers. Devices similar to lathe-ccn-tcrs for supporting small work on the l)cd of aplaning-niachine. One of the two {a b, Fig. 3788)is provided witli a worm and worm-wheel, by whichthe work may be rotated, so as to present each face Fig, ^- Planer- Centers. in succession to the
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . tion sliows tlie tool operating on the inrerior of alargH Piistinrr, Planer-centers. Devices similar to lathe-ccn-tcrs for supporting small work on the l)cd of aplaning-niachine. One of the two {a b, Fig. 3788)is provided witli a worm and worm-wheel, by whichthe work may be rotated, so as to present each face Fig, ^- Planer- Centers. in succession to the cutter c; the other has an in-clined jdanc, hy which the slope of the work is regn-latiil so as to give a tapor, if required. Plane-stock. (Joinery.) Tlie body of the olanein whiclt the iion is fitted. See Plane. The sole or frrcc is the flat lower surface. Tlic iron is the cutting piece. Tlie nrdffe holds tlie iron upon the slanting por-tion, (•ailed tlie /jcd. Till plani-iron projects through the mouth, throughwhich also pass the shavings. For the purpose of veri-fying their accuracy, theplanotneter was devised byWhitworth. Tiiis is ap-plied to the face of the ar-ticle, previously brought lo _,au approxiniatily true sur- ^-face, and thinly coated uitli red-lead in oil, which will be transferred,in those parts which are too high,to the planometer. These must hereduced by filing or grinding untilthe surface of the work coincides inevery part with that of tlie planome-ter ; this is the case when the pig-ment is transferred equally to theface o
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