| 摘要 |
<p>PLUGS FOR FILLING HOLES IN ROADS OR PAVEMENTS A mold having at least one hollow truncated conical member for use in the manufacture of at least one plug of bituminous material for road or pavement repair, and comprising an upper, open end of each conical member, said upper end having a smaller cross-sectional area than the bottom end, said bottom end being closed with a smooth, readily detachable smooth base plate which is adapted to form a plug having a smooth upper end of larger crosssectional area than the bottom end of said plug, said mold having a top plate with at least one opening of the same shape and area as the outer rim of the upper end of the truncated conical member the said upper end of said conical member being secured to the said top plate adjacent the said rim, the top plate being provided with a lip on the periphery of its upper surface, said lip having a portion detachable therefrom to facilitate removal of excess bituminous material from the top plate, said mold being provided with a bottom plate spaced from and connected to said top plate.</p> |
