Screed bar assembly
First Claim
1. A screed support assembly comprisinga screed bar support,a screed bar mounted in said support for vertical adjustment,first and second support legs positioned outwardly of said support, andmeans for mounting at least one of said legs to said support for motion relative to said screed bar, whereby the position of said one leg relative to the other of said legs and relative to the screed bar may be adjusted.
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Accused Products
Abstract
A screed bar support saddle is carried by vertically adjustable legs mounted on the ends of support arms swingable in a horizontal plane so as to vary the spacing between the legs, between the legs and the screed bar, and to adjustably position the legs relative to the screed bar. The adjustable positioning and spacing of the legs enables the screed bar support assembly to be placed to avoid interference with reinforcing steel or wire, pipes, and the like, and to accommodate concrete pouring upon corrugated surfaces having different spacing ofcorrugating grooves. The screed bar is held against torsional and pivotal motion within a support saddle and precisely adjusted in elevation by rotation of an adjustment tool formed on the end of a sight rod that is used with a transit, level, or the like, for precision elevation control.
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Citations
16 Claims
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1. A screed support assembly comprising
a screed bar support, a screed bar mounted in said support for vertical adjustment, first and second support legs positioned outwardly of said support, and means for mounting at least one of said legs to said support for motion relative to said screed bar, whereby the position of said one leg relative to the other of said legs and relative to the screed bar may be adjusted.
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10. An adjustable screed support assembly comprising
a support, a screed bar adjustably carried by said support, first and second support legs positioned laterally outwardly of said support, first and second swing arms connected to said support for pivotal motion about substantially vertical axes, and means for connecting said legs to said arms, whereby each leg may be adjustably positioned relative to the support by swinging one of said arms about its pivotal axis.
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13. A screed support assembly comprising
a screed bar support saddle having first and second mutually spaced, substantially parallel, upstanding sidewalls and a base extending between and interconnecting lower ends of the sidewalls, an internally threaded member fixed to said base, a screed bar in said support saddle, a threaded rod extending through said screed bar and threadedly engaged with said threaded member, means on said threaded rod for supporting said screed bar, and means for holding said support saddle above a surface.
Specification