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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.
Divining rod, two rods believed by some to find water in a practice known as dowsing Fishing rod , a tool used to catch fish, like a long pole with a hook on the end Lightning rod , a conductor on top of a building to protect the building in the event of lightning by taking the charge harmlessly to earth
L/D – lay down (such as tubing or rods) LD – lay down (such as tubing or rods) LDAR – leak detection and repair; LDHI – low-dosage hydrate inhibitor; LDL – litho density log; LDS – leak detection system (pipeline monitoring) LDTEP – LDT EPT gamma ray log; LEAKL – leak detection log; LEPRE – litho-elastic property report
An ROD issued by the Federal Highway Administration (FHWA) signals formal federal approval of an environmental impact statement (EIS) or environmental assessment (EA) concerning a proposed highway project. The ROD authorizes the respective state transportation agency to proceed with design, land acquisition, and construction based on the ...
The rod is a historical unit of length equal to 5 + 1 ⁄ 2 yards. It may have originated from the typical length of a mediaeval ox-goad. There are 4 rods in one chain. The furlong (meaning furrow length) was the distance a team of oxen could plough without resting. This was standardised to be exactly 40 rods or 10 chains.
Main rod (US) The drive rod connecting the crosshead to a driving-wheel or axle in a steam locomotive [168] Maintenance of way (MOW) (US) A spiker is an example of MOW equipment The maintenance of a railroad's rights of way, including track [167] Manifest A westbound Southern Pacific manifest train A freight train with a mixture of car types ...
A pin protruding from a wheel into a main or coupling rod. Crosshead In a steam locomotive, the moving member of a sliding guide that absorbs upward and downward forces from the connecting (main) rod, which otherwise would tend to bend the piston rod. [59] Cut To uncouple one or more cars from a train (i.e. to "make a cut"). [60] Same as ...
A rood is also an obsolete British unit of linear measure between 16 + 1 ⁄ 2 and 24 feet (5.0–7.3 m). It is related to the German Rute and the Danish rode. [4] [5] The original OED of 1914 said this sense was "now only in local use, and varying from 6 to 8 yards" (or 18 to 24 ft, "Rood", II.7).