Search results
Results From The WOW.Com Content Network
A steam donkey or donkey engine is a steam-powered winch once widely used in logging, mining, maritime, and other industrial applications. Steam-powered donkeys were commonly found on large metal-hulled multi-masted cargo vessels in the later decades of the Age of Sail on through the Age of Steam , particularly heavily sailed skeleton-crewed ...
Portable sawmills are sawmills small enough to be moved easily and set up in the field. They have existed for over 100 years but grew in popularity in the United States starting in the 1970s, when the 1973 oil crisis and the back-to-the-land movement had led to renewed interest in small woodlots and in self-sufficiency.
While in that business, he invented the logging engine, more commonly known as the steam donkey or donkey engine. This invaluable equipment, especially with regard to difficult terrain and very large trees, revolutionized 19th century logging so significantly that variations of the engine were still used well into the 20th Century.
The Madera Sugar Pine Company was a United States lumber company that operated in the Sierra Nevada region of California during the late 19th and early 20th centuries. The company distinguished itself through the use of innovative technologies, including the southern Sierra's first log flume and logging railroad, along with the early adoption of the Steam Donkey engine.
International Steam.co.uk – comprehensive coverage of stationary steam engines in their original locations, working and non-working, in many countries; preserved stationary steam engines – includes lesser-known museums containing such engines (UK) Steamers steam engine forum – Questions and answers about old steam engines, traction engines
The early yarders were steam powered. They traveled on railroads, known as "dummylines", and felled trees were dragged or "skidded" to the railroad where they were loaded onto rail cars. Popular brands included Willamette, Skagit, Washington, Tyee, or Lidgerwood and Clyde, built by Clyde Ironworks in Duluth, Minnesota. [2]
The Lombard Steam Log Hauler, patented 21 May 1901, was the first successful commercial application of a continuous track for vehicle propulsion. [ 1 ] [ 2 ] [ 3 ] The concept was later used for military tanks during World War I and for agricultural tractors and construction equipment following the war.
Doble steam-car boiler: donkey boiler: A donkey boiler is used to supply non-essential steam to a ship for 'hotel' services such as heating or lighting when the main boilers are not in steam, for example, when in port. [3] Donkey boilers were also used by the last sailing ships for working winches and anchor capstans. See also auxiliary boiler.