Abstract: A multiple coordinate linearly adjustable support for implements including a block having transversely arranged square bores slidably and non-rotatably receiving complementary square threaded rods with the block locked in position with respect to the rods by opposed lock nuts threaded on the rods. The rods have sides with flat uninterrupted longitudinal surfaces that carry numeric linear measurement indicia to indicate the location of the block along the rods, and unique lock washers with square rod receiving apertures rotationally fastened the lock nuts to the rod and to the block.

Abstract: A support assembly of general utility that permits linear and rotational adjustability of the article supported including several angularly related hexagonal threaded rods interconnected by support blocks having transversely disposed rod receiving bores therein. The hexagonal configuration of the rods permits the blocks to be angularly located in any of six positions with respect to each rod, and clamping lock nuts threaded on the rods compress the blocks around each rod.