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2. Excavator - Wikipedia

   en.wikipedia.org/wiki/Excavator

   The largest form ever of an excavator, the dragline excavator, eliminated the dipper in favor of a line and winch. On the end of the stick is usually a bucket. A wide, large capacity (mud) bucket with a straight cutting edge is used for cleanup and levelling or where the material to be dug is soft, and teeth are not required.

3. Bucket (machine part) - Wikipedia

   en.wikipedia.org/wiki/Bucket_(machine_part)

   Excavator buckets are made of solid steel and generally present teeth protruding from the cutting edge, to disrupt hard material and avoid wear-and-tear of the bucket. Subsets of the excavator bucket are: the ditching bucket, trenching bucket, A ditching bucket is a wider bucket with no teeth, 5–6 feet (1.52–1.83 m) used for excavating ...

4. Power shovel - Wikipedia

   en.wikipedia.org/wiki/Power_shovel

   Power shovels are a type of rope/cable excavator, where the digging arm is controlled and powered by winches and steel ropes, rather than hydraulics like in the modern hydraulic excavators. Basic parts of a power shovel include the track system, cabin, cables, rack, stick, boom foot-pin, saddle block, boom, boom point sheaves and bucket.

5. Steam shovel - Wikipedia

   en.wikipedia.org/wiki/Steam_shovel

   Otis excavator. 1841. Grimshaw of Boulton & Watt devised the first steam-powered excavator in 1796. [1] In 1833 William Brunton patented another steam-powered excavator which he provided further details on in 1836. [2] [3] The steam shovel was invented by William Otis, who received a patent for his design in 1839. The first machines were known ...

6. Ditch Witch - Wikipedia

   en.wikipedia.org/wiki/Ditch_Witch

   The buckets were attached in sequence onto an endless moving chain that carried them down a ladder type mechanism to chew out chunks of soil, then upward to dump the spoil in neat piles on the ground as they began the downward descent to bring up more dirt. A 6-inch wide trench with a digging depth of 30 inches was the goal. [4]

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