초록 ▼

A combination bull float, hand trowel, groover for use in conjunction therewith, and an elongated handle for attachment with the groover, or the bull float, is provided, with the groover being connectable with either of the bull float or the hand trowel for use in perfecting the finishing of freshly

A combination bull float, hand trowel, groover for use in conjunction therewith, and an elongated handle for attachment with the groover, or the bull float, is provided, with the groover being connectable with either of the bull float or the hand trowel for use in perfecting the finishing of freshly poured concrete. The bull float includes a plate portion having upstanding front and back walls extending upwardly therefrom, with the groover being only slightly longer than the width of the plate portion and incorporating connecting means for fastening it to the bull float, and for providing both a finishing and grooving of the concrete during its working. An elongated handle connects to a bracket upon the bull float, while the groover, if independently used, is also secured through a connector with the elongated handle for facilitating its independent usage for the grooving of finished concrete. The hand trowel is also designed to accommodate the groover, containing a plate member having upturned flanges that cooperate with engaging components of the groover to provide for its removable but secure fixing to the trowel during its usage in both finishing concrete, and providing the necessary expansion groove therein.

대표청구항 ▼

A bull float for use in finishing concrete or the like, comprising, a plate portion having a handle removably attached thereto, said plate portion having at least a front edge, said plate portion having a substantially upstanding front wall integral of its front edge, said front wall being contoured

A bull float for use in finishing concrete or the like, comprising, a plate portion having a handle removably attached thereto, said plate portion having at least a front edge, said plate portion having a substantially upstanding front wall integral of its front edge, said front wall being contoured to function as means for moving accumulations of concrete for attachment of other working instrumentalities to the float, said substantially upstanding front wall formed in a concavely-like manner to facilitate the moving of accumulations of concrete and for providing attachment of other working instrumentalities ot the said bull float, attachment means for the handle formed along the upper side of the plate portion and extending for some length longitudinally thereof to allow for adjustment for the positioning of the handle upon the said plate portion, said attachment means including a pair of upstanding members, each member having an inward shoulder projecting towards each other and thereby forming a clearance slot between the said members, at least one fastener having an enlarged head being accommodated within said slot, a bracket connecting at the lower end of the handle and securing with the said fastener for holding the handle and the plate portion of the bull float together in their adjusted positioning, said bracket including at least one angle member, one flange of the angle member having an aperture therethrough for accommodating the said fastener, the other angle flange having a series of ribs formed thereon, the lower end of the handle forming a boss, said boss having a series of formed ribs thereon, the ribs of the angle capable of intermeshing with the boss ribs for interlocking the bracket and its accompanying handle into a fixed position, and a fastener holding said boss and bracket into their locked positioning.