E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/40
E01C 19/48 (2006.01) E01C 19/00 (2006.01)
Patent
CA 1313078
PAVING MACHINE HAVING TRANSVERSELY AND LONGITUDINALLY ADJUSTABLE GRADE SENSORS ABSTRACT A paver of the floating screed type which is capable of operating with screed extensions for laying down pavement at various widths includes a self-contained, stowable and extensible grade reference system with a wide, planar adjustment range. The grade reference system provides an adjustment range for posi- tioning a grade sensing device on either or both sides of the paver both forward and transversely outward from a selected support point on the paver. The grade reference system has a pivotally outer support member which permits the sensing device to become positioned at any selected setting of an arcuate path forward of a rearward position in substantial alignment with the leading edge of the screed to a forward position determined by the length of the member. The pivotal adjustment range of the outer support member is augmented by a transverse adjustment range effected by an extension or retraction of a corresponding support member to shift the pivot axis of the outer support member respectively outward or inward. The combination of the two adjustments provides for a mix of anticipatory grade change sensing combined with laterally outward extensions of the screed beyond the full extension range of the screed.
613911
Haven Matthew B.
Musil Joseph E.
Cedarapids Inc.
Finlayson & Singlehurst
LandOfFree
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