Search results
Results from the WOW.Com Content Network
A list, usually tabular and often on the drawing (if not accompanying the drawing on a separate sheet), listing the parts needed in an assembly, including subparts, standard parts, and hardware. There is no consistently enforced distinction between an L/M, a BoM, or a P/L. PLM: product lifecycle management; plant lifecycle management: See also ...
Shop drawings are produced by contractors and suppliers under their contract with the owner. The shop drawing is the manufacturer’s or the contractor’s drawn version of information shown in the construction documents. [1] The shop drawing normally shows more detail than the construction documents.
U.S. patent 138,763 – Henry Rose, DeKalb County, Illinois, Improvement in Wire-fences – "strips provided with metal points" (1873) U.S. patent 147,756 – Isaac Ellwood, DeKalb, Illinois Improvement in Barbed Fences – "single piece of metal with four points, attached to a flat rail" (February, 1874)
The two main design characterictis of rockfall barriers are their height and their impact strength. Similarly as for other passive rockfall protection structures (e.g. embankments ), the barrier required height is defined based on rock fragments passing heights obtained from trajectory simulations.
Simple split-rail fence Log fence with double posts (photo taken in 1938). A split-rail fence, log fence, or buck-and-rail fence (also historically known as a Virginia, zigzag, worm, snake or snake-rail fence due to its meandering layout) is a type of fence constructed in the United States and Canada, and is made out of timber logs, usually split lengthwise into rails and typically used for ...
A barrier known as a triple concertina wire fence consists of two parallel concertinas joined by twists of wire and topped by a third concertina similarly attached. The result is an extremely effective barrier with many of the desirable properties of a random entanglement.
The Belt Railway Company of Chicago (reporting mark BRC), headquartered in Bedford Park, Illinois, is the largest switching terminal railroad in the United States. It is co-owned by the six Class I railroads of the United States — BNSF, Canadian National, CPKC (the BRC's north–south main line's northern terminus is, like the Indiana Harbor Belt, the Milwaukee District West Line in Chicago ...
This type of mesh is a square grid of uniformly placed wires, welded at all intersections, and meeting the requirements of ASTM A185 and A497 or other standards. [1] The sizes are specified by combining the spacing, in inches or mm, and the wire cross section area in hundredths of square inches or mm2.