Surface spreader with column bypass

In a surface spreader for applying particulate material in strip fashion to the surface of freshly-poured concrete, the spreader having an elongated framework structure spanning the concrete, a hopper suspended on the framework structure and adapted to traverse the framework structure from one end to the other to spread material in a strip over the surface of the spanned concrete, and end supports at either end of the framework structure to support the framework structure above the concrete, the improvement comprising:

• an apparatus for accommodating and avoiding the interference of a column in line with an end support of the surface spreader, the apparatus including
• a. an assembly for attachment to the column for supporting an end of the surface spreader, said assembly including a horizontal shelf and means to affix said shelf to the column at a predetermined elevation in registration with the end of the surface spreader, and
• b. ski means mounted at the end of the surface spreader, said ski means being shaped to engage said shelf and support the end of the surface spreader on said shelf and being mounted at approximately the same elevation as said shelf.