Here are some close up details on the Kingway fixture, especially showing the mounting and adjustment provisions for the level vials; note that the stationary end is mounted solidly to a plate which pivots on a pin through the protective housing, the adjustable end has a fine threaded adjustment that acts against a spring under the end plug of the vial housing. pic. #1 shows the unit in the box. The shoe that the ball on the left side of pic. 2 is made of Delrin.
pic. #4 shows the two vials and housings mounted together; I take it apart to store it in the box to take up less room.
Pic. #5 shows the spring under the vial end plug and its adjusting knob.
#6 shows the level housing removed from the cross level housing. There is a washer on the knob shaft to hold the long level away from the cross housing so that it can be smoothly adjusted.
#7 shows the same part from another angle.
#8 shows the swivel and rod that attaches a dial indicator to the unit; all the swivels used are Brown & Sharpe products and were found on e bay. They lock up quite rigidly "like a rock".
Rich King tells me that there were 3 sizes of the Kingway fixture, HK 100 with 3/8" rods, HK 200 with 3/4" rods and HK 300 with 1-1/4 diameter rods; the one I am showing is the HK 200. For most of us, the HK 100 would likely be the best choice.