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High lead logging is a method of cable logging using a spar, yarder and loader. It was developed by Oscar Wirkkala. It is accomplished with two lines (cables) and two winches (or cable drums). The mainline or yarding line extends out from one winch, while a second usually lighter line called the haulback line extends out from the other winch to ...
High Lead logging in Western Oregon Cable grue Larix 3T, installed on agricultural tractor. Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, and grapple yarders, but also in Europe (Austria, Switzerland, Czech Republic, France, Italy).
Wirkkala invented and developed the high lead method of logging.This skyline (or "spar") method, ideally suited for steep terrain, revolutionized the industry. He also invented important pieces of that industry's machinery used during the first half of the 20th century, including the ubiquitous choker hook.
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4. Spices. Spices like turmeric, paprika, and chili powder can contain lead, sometimes at alarming levels. A lot of this contamination comes from poor farming practices, where spices are grown in ...
A good deal of the cable-logging terminology derived from 19th-century merchant sailing, as much of the early technology originated in that industry. Common logging terms include high-lead yarder, ground-lead yarder, loader, snubber, and incline hoist.
Dr. Sara Scherger, a pediatrician at the Mayo Clinic Health System in Austin, Minn., says that long-term effects of high levels of lead can include kidney damage and nervous system damage, as well ...
High Lead Levels Found in 12 Brands of Cinnamon, Report Finds. Sydney Wingfield. September 18, 2024 at 2:01 PM. Find out which brands to avoid—and what to use instead. Lidante / Getty Images.