Thomas, Hugh Kerr · New York, McGraw-Hill Book Company, Inc.; [etc., etc.] · leaf 51
lines of pressiire are shown as a skeleton diagram, and it is seenthat they form a portion of the sm-face of a conical spiralencircling the worm. Taking Fig. 13, the portion of this surfacewill be seen to be approximately a segment of a cone, and seeingthat several teeth operate at one time, the… … Fm. 14. from this line, touch the worm threads respectively to theright and left of this point, viewed ^from the end of the wormaxis. The lines of pressure, therefore, for every point of con-tact range themselves in such directions as will conform moreor less to the siuface of a cone, and the…
Gearing, Worm
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
