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An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.
In 1899, while working at his father's carriage manufacturing business and volunteering for the Kenosha, Wisconsin fire department, Peter Pirsch received the patent for the trussed extension ladder, a marked improvement upon the older, solid ladders that firemen had been using up to that point. With patent in hand, he founded Peter Pirsch ...
Based on U.S. Patent Office records, H.M. Quackenbush and his company were responsible for inventing, or significantly contributing to the development of, numerous early 20th century inventions, including: bicycles; a foot-powered wood lathe; the scroll saw; darts; stair rails; the extension ladder; a bathroom shelf; the nut cracker and picks ...
Extension ladder A 20–60-foot ladder with one or more movable sections that extend beyond a base section, generally using a halyard rope and pulley mechanism for lifting and locking cams to latch the moving sections at a selected height. Extinguisher
The US doesn't run a surplus like most sovereign wealth funds. But Trump's order refers to trillions in existing assets.
These vehicles can vary from a converted van chassis to a purpose built fire appliance chassis. They often carry hydraulic rescue gear, 9 m or 5.8 m extension ladders and water. They are most often used as a second appliance in place of a pump rescue ladder or as a first appliance in its place in areas with small, tight roads.
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