| Notes |
Boring Machines. Tool-slide for combined type of machine, boring & facing bearings of gas engine bed on Pearn-Richards machine, section through facing head with Pearn-tapper in position, various settings of the machine, section through facing head showing gearing for traversing the tool-slide, face view of head with tool-slide removed, section of tool-slide with feed-gear, facing end of gas engine cylinder on Pearn-Richards machine, star-feed facing-head, two detail drawings of Richards star feed facing head, fixture holding four motor twin cylinders in Pearn-Richards machine (on page 27) |