| 摘要 |
A bull float for leveling and finishing concrete made from two different materials is disclosed. In one embodiment, the main wooden base has an insert made from fiberglass. As the bull float is pushed forward, the pole is angled such that the wooden back edge levels and smooths the concrete, then on the return stroke the pole is raised such that the fiberglass front edge finishes the concrete as the bull float is swept back to the concrete worker. This bull float performs the tasks currently requiring three separate bull floats, thereby saving the worker from having to replace and clean two or three separate bull floats. As concrete sets up quickly, the time savings obtained through using just a single bull float results in superior concrete slabs with less effort required of the concrete worker and more time to work the concrete. |
| 主权项 |
1. A bull float comprising: a base, an insert, a bracket, a pole attachment point, one or more insert attachment devices, one or more bracket attachment devices, and a pole attachment device,
where, the base comprises from a top view a cuboid piece of wood with an upper surface and a bottom surface, two long-side surfaces and two short-side surfaces, where the bottom surface has a front edge and a back edge, where a slot has been created in the bottom surface, at the front edge of the bottom surface, where the slot has a height, a width and a length, and where the insert has a height, a width, and a length that is the same size as the height, width and length of the slot, and where the insert is inserted into the slot and secured to the base by means of one or more insert attachment devices, where, after the insert is inserted into the slot, a bottom surface of the insert forms a flush, continuous plane with the bottom of the base, where the one or more insert attachment devices and the one or more bracket attachment devices are screws, where the bracket comprises a roughly “H” shaped metal structure with two members aligned in a direction of from the front edge to the back edge, and a member that connects the two members aligned in a direction of from the front edge to the back edge is aligned perpendicular to the front edge and the back edge, and where the bracket is connected to the base by one or more bracket attachment devices, where the bracket is connected to the pole attachment point, where the pole attachment point is capable of receiving a pole, and, where a pole can be connected to the pole attachment point with one or more pole attachment devices, and the bull float can be pushed in a forward direction by a worker attempting to finish a concrete slab or other area of concrete, such that by adjusting the angle of the base, when pushing the bull float in a forward direction, away from the worker, the front edge can be slightly raised, thereby allowing the back edge to level the concrete, and when the worker retrieves bull float by pulling it back in a back direction, by adjusting the angle of the base the front edge will be lower than the back edge such that the insert will be the last part of the bull float to touch the concrete, and where the insert can smooth and finish the concrete. |
