DEAN, SMITH and GRACE 1926 Booklet "A Lathe and More About Lathes"1926. Shows a range of DSG lathes and their accessories and then explains elements of their design and structure. Elements covered include examples of the advantages and disadvantages of various designs and approaches to the headstock carriage, tailstock, leadscrew, leadscrew nuts, clutches, drive systems and tooling, etc. Also covers a range of complex machining jobs. 60 pages.