from The Century Dictionary.
- noun A steel or iron plate of a comparatively low carbon content. These plates have a tensile strength of about 40,000 pounds per square inch and are quite ductile.
Sorry, no etymologies found.
The bed plate is provided with springs through which the side cutter-heads are arranged, to move laterally or transversely with a bridge-plate or plates, susceptible of adjustment independent of the cutter-heads, whereby an adjustable support to the "stuff" is given as it passes over the line of the openings in the bed.