Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 198
ickness pieceat this end of box, and you make another core reaching PATTERNS FOR SCREWS. 197 from the spiral face to broken line g. These two cores willform one end of the worm. Go through the same opera-tion at the opposite .end of core-box. Dont forget on theseend-sections to make allowance for… … Fig. 90. of end prints and long enough to make the core necessaryfor each end, with the addition of such length as will keepthe two plugs, which I should use, in position, one formaking the hole in core to form the pin, the other makingthe opposite end. These cores also form the recess shownat each…
Patternmaking
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
