Patten (shoe) wooden inner sections with leather above and below. In earlier varieties of pattens, dating from the 12th century on, the stilt or wedge variety were more common. From the late 14th century, the flat variety became increasingly common. Leather pattens became fashionable in the 14th and 15th centuries, and in London appear to have begun to be worn as shoes over hose in the 15th century, spreading to a much wider section of the public. Most London patten soles were constructed of alder, willow or poplar woods. In 1390, the Diocese of York forbade clergy from wearing pattens and clogs
Power shovel 6360, nicknamed "The Captain". Extreme Mining Machines - Stripping shovels and walking draglines, by Keith Haddock, pub by MBI, Power shovel A power shovel (also stripping shovel or front shovel or electric mining shovel or Electric Rope Shovel ) is a bucket-equipped machine, usually electrically powered, used for digging and loading earth or fragmented rock and for mineral extraction. 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 more common hydraulic excavators. Basics parts of power shovel including the track system,cabin,cables,rack, stick,boom