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A gin pole in use loading logs A gin pole used to install a weather vane atop the 200-foot steeple of a church Roof trusses being assembled with gin poles. A gin pole is a mast supported by one or more guy-wires that uses a pulley or block and tackle mounted on its upper end to lift loads. The lower end is braced or set in a shallow hole and ...
The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units , it is defined as 16 + 1 ⁄ 2 feet , equal to exactly 1 ⁄ 320 of a mile , or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain ), and is exactly 5.0292 meters.
In Japan, the standard measure for walking distance is 80 meters for 1 minute of walking time. It is the standard used in real estate listings. It is the standard used in real estate listings. For example, if a building is a 10-minute walk from a particular park or train station, it is 800 meters away.
Surveying prism pole with instrument attached. In surveying, a pole is bar made of wood or metal and normally held vertical, upon which different instruments can be mounted: a prism, a GPS device, etc. [1] It may be manufactured with a predetermined length (e.g., 2 meters) or may be graduated for different heights or stages.
the mile, yard, foot and inch for road traffic signs, for distance and speed measurement, the imperial pint for the dispensing of draught beer and cider, for the sale of milk in returnable containers, and for the sale of champagne; the troy ounce for transaction in precious metals. [60] [117] [72]
The National Trails System includes 11 long-distance National Scenic Trails with distinctive trail markers for each. This is a list of notable long-distance trails in the United States, with a minimum length of 30 miles (48 km).
The poles are tapered from ground level to the top and the toe. This construction uses the tensile properties of the steel, giving the poles excellent properties in bending. Stobie pole strength in the strong direction may be up to 4.5 times the weak direction strength. [ 8 ]
Mountain guide Alice Manfield with a long wooden walking pole in the early 1900s. When in use, modern trekking poles resemble ski poles as they have many features in common, such as baskets at the bottom to prevent the pole sinking through unstable surfaces, and rubber-padded handles and wrist straps to strengthen holding grip. Their maximum ...
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