from The Century Dictionary and Cyclopedia
- n. The rod which actuates or drives a valve-stem; the rod which is fastened to a valve to move it back and forth.
Sorry, no etymologies found.
G, which slide-valve is operated forward and back by means of the valve-rod, o¹, the outer end of which is hinged to the upper end of the slotted lever, o², Fig. 1, that is hung at o³, on the end of the balanced and vibratory beam of truss, i, as shown.
"The valve-rod, o ', is to be connected to a link and reversing lever as usual, such being, however, omitted in the drawings."
You will now be able to measure off exactly the distance between the centres of the valve-rod fork pin and the rear screw of the eccentric.