Concrete slab surface finishing apparatus
AssigneeDyform Engineering Limited
InventorChristopher B. Bunn
Life of this patent
Estimating the term…
Abstract
A support frame to span and to be moved over the surface of a concrete slab on wheels running on rails extending along side edges of the slap, and having a hopper for depositing a layer of finishing material on the slab surface ahead of at least one roller carried by the frame, said finishing material being confined on the surface by side walls depending from the frame and overlapping the side edges of the slab. Power means rotates the roller, and this roller can be adjusted vertically relative to the frame to adjust the thickness of finishing material being rolled onto the slab surface.
Claims17
Apparatus for finishing the surface of a concrete slab, comprising:
- a support frame to span and to be moved over the surface of a concrete slab to be finished,
- confining side walls depending from the frame to overlap side edges of the slab,
- means swingingly suspending said side walls from the frame out of balance so that the walls tend to swing inwardly relative to the frame and against the side edges of the slab,
- at least one roller carried by the frame and extending transversely thereof,
- power means connected to the roller to rotate said roller, and
- hopper means carried by the frame and positioned to deposit a layer of finishing material on the slab surface ahead of the roller with reference to the direction of movement of the support frame, said roller rolling out the finishing material on the slab surface and said side walls confining the finishing material on said surface.
Apparatus for finishing the surface of a concrete slab, comprising:
- a support frame to span and to be moved over the surface of a concrete slab to be finished,
- a sub frame carried by and extending across the support frame;
- means for adjusting the sub frame vertically relative to the support frame,
- confining side walls depending from the sub frame to overlap and bear against side edges of the slab,
- means swingably suspending said side walls from the sub frame out of balance so that the walls tend to swing inwardly relative to the frame and against the side edges of the slab,
- at least one roller carried by the sub frame and extending transversely thereof,
- power means connected to the roller to rotate said roller, and
- hopper means carried by the support frame and positioned to deposit a layer of finishing material on the slab surface ahead of the roller with reference to the direction of movement of the support frame, said roller rolling out the finishing material on the slab surface and said side walls confining the finishing material on said surface.
Dependencies are inferred from the claim text.