orizontal distance from F tothe directrix. Tlius DF equals FG,and DH equals HK, etc. ThroughD draw BDA perpendicular to AC.This is the axis of the curve. Draw parallels to AC throughany points in AB, and with centre D and radii equal to the hori-zontal distances of these parallels from AC cut the… … Prob. 100. To draw an hyperbola when the diameter AB,the abscissa BC, and the double ordinate DE are given. Complete the rectangleBCDF, and divide CD andDF each into the same num-ber of equal parts. DrawBL, BM, and BN, inter-secting lines AK, AH, andAG respectively in pointson the curve. Repeat…
Mechanical drawing
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