Abstract: An excavator stump shearing device which is characterized by a blade assembly carried by various mount devices for attachment to an excavator bucket or to an excavator boom or bucket arm. In a first preferred embodiment the blade assembly is fixed to a blade mount drum which is removably gripped by the bucket and thumb of an excavator bucket to position the blade elements of the blade assembly for shearing a stump. In other embodiments the blade assembly mount devices are characterized by mount blocks, various blade mount boxes, a bucket tooth and tooth mount assembly and a bucket-engaging pad apparatus. The blade elements of the blade assembly include a bevelled shearing blade and a companion transverse wedge or stinger blade for engaging, splitting and shearing a stump responsive to operation of the excavator boom or arm and in some embodiments, the excavator bucket.

Abstract: A hydroelectric power generating method and/or apparatus provides one or more inlet pipes perpendicular to a flow of water in a stream or river. The inlet pipes have a length and plural apertures along the length of the at least one inlet pipe. A feedline and a turbine generator combination are interconnected with the inlet pipes. One or more outlet pipes are interconnected with the feedline and the turbine generator combination. The outlet pipes have an elevation lower than the inlet pipe. A flow of water passes through the inlet pipes, the feedline, the turbine generator combination, and the outlet pipes, and generates electricity from the flow of water passing through the turbine generator combination. The hydroelectric power generating method also provides a pressure dissipation device that causes a reduction in the pressure of the water so that the water can be released safely back into the stream or river.