Despite what must have been overwhelming evidence of the superiority of the hollow spindle lathe holding a draw-in split chuck (now called a collet) invented in 1857 or 1858 by Charles S. Moseley, in subsequent years several inventors attempted to improve on this system - but all to avail. Mr S.A. Sawyer might have designed a work-holding device that could be adapted to secure other items on the end of the spindle - and despite his claim that there was a reduction in the number of parts used when compared to an earlier patent of the same type (US 220291) by Kesselmeier, it was still an unnecessarily complicated arrangement and doomed never to be taken up.