Edwin Harrington, Son & Co.
Illustrated catalog given to Lamar Lyndon ca.1890.  The firm was located at North Fifteenth Street & Pennsylvania Avenue, Philadelphia, Pennsylvania.
Webpage copyright © George Langford 2010
Machine Tools, ca. 1890 illustrated catalog
Edwin Harrington Taper Attachment, pages 16 & 17

Always gives entire satisfaction.
Does not interfere with any of the regular uses of the lathe for screw-cutting or turning.
It is not necessary to throw lathe centres out of line. Different lengths of work do not affect the taper; no trial cuts are necessary, taper being determined by graduated endices, one for degrees, the other for sixteenths per foot. May be used for boring or turning; is easily disconnected for straight work.