Spur and bevel gearing; a treatise on the principles, dimensions, calculation, design and strength of spur and bevel gearing, together with chapters on special tooth forms and methods of cutting gear teeth (1914)
New York, The Industrial press; [etc., etc.] · leaf 169
itch of hob On a lathe with a lead-screw of six threads per inch, or a leadof I or 0.1667 inch, the gears that would give accurate enoughresults for the present hob would be 28 teeth on the lead-screw,and 33 teeth on the stud. Thread Relieving Tool. — In Fig. 14 is shown the hob threadrelieving… … achinery Fig. 15. Special Hob Tooth Dimensions of I degree 22 minutes with the vertical to clear the sides of thethread. A tool made like this can be sharpened by grindingacross the top without losing its size or form. If the gashes weremade on the spiral, the top of the tool should be ground to…
Gearing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-207-100.webp)
