Patten (shoe) dung and human effluent (from chamber pots)– was usually thrown directly into the street (often with minimal advance warning). Making full foot contact with such an unpleasant surface was, understandably, highly undesirable. Thus, pattens tended to only make contact with the ground through two or three strips of wood and raised the wearer up considerably, sometimes by four inches (ten centimetres) or more in contrast to clogs which usually have a low, flat-bottomed sole integral to the shoe. A later pattern of patten which seems to date from the 17th century, and then became the most common, had a flat
Steam shovel dipper stick. When digging at a rock face, the operator simultaneously raises and extends the dipper stick to fill the bucket with material. When the bucket is full, the shovel is rotated to load a railway car or motor truck. The locking pin on the bucket flap is released and the load drops away. The operator lowers the dipper stick, the bucket mouth self-closes, the pin relocks automatically and the process repeats. Steam shovels usually had a three-man crew: engineer, fireman and ground man. There was much jockeying to do to move shovels: rails and timber blocks to move; cables