A Useful Tool‐Room Adjunct
Aircraft Engineering and Aerospace Technology · 1936
THE Keller Automatic Tool Room Machine, for which Alfred Herbert, Ltd., are the agents in this country, is an unusually powerful milling machine, operated by a simple electrical control. By means of this control the shape of a master is reproduced automatically by the machine. The job may be either profiling in two dimensions, or a solid form requiring three dimension cutting. In each case, a tracer passes over the master form, and the cutter duplicates its path precisely.