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Coping or scribing is the woodworking technique of shaping the end of a moulding or frame component to neatly fit the contours of an abutting member. Joining tubular members in metalworking is also referred to as a cope, or sometimes a "fish mouth joint" or saddle joint .
A coping saw. A coping saw is a type of bow saw used to cut intricate external shapes and interior cut-outs in woodworking or carpentry. It is widely used to cut moldings to create coped rather than mitre joints. It is occasionally used to create fretwork though it is not able to match a fretsaw in intricacy of cut, particularly in thin ...
90º miter joint (pieces ready to be joined) Miter joint of two pipes A miter joint (mitre in British English) is a joint made by cutting each of two parts to be joined, across the main surface, usually at a 45° angle, to form a corner, usually to form a 90° angle, though it can comprise any angle greater than 0 degrees.
This twists the O-ring as the sealed device is cycled and finally causes a series of deep spiral cuts (typically at a 45-degree angle) on the surface of the seal. Explosive decompression – An O-ring embolism, also called gas expansion rupture, occurs when high pressure gas becomes trapped inside the elastomeric seal element.
Moderately severe scoliosis (30–45 degrees) in a child who is still growing requires bracing. A 2013 study by Weinstein et al. [ 9 ] found that rigid bracing significantly reduces worsening of curves in the 20-45 degree range and found that 58% of children receiving "observation only" progressed to surgical range.
The felling cut is made horizontally and slightly (1.5–2 inches; 5.1 cm) above the bottom cut. When the hinge is properly set, the felling cut will begin the fall in the desired direction. [46] [45] A sitback is when a tree moves back opposite the intended direction. Placing a wedge in the felling cut can prevent a sitback from pinching the saw.
EDC injection inline pump. The mechanical fly-weight governors of inline and distributor diesel fuel injection pumps used to control fuel delivery in diesel engines under a variety of engine loads and conditions could no longer deal with the ever-increasing demands for efficiency, emission control, power and fuel consumption. These demands are ...
A centrifugal pump containing two or more impellers is called a multistage centrifugal pump. The impellers may be mounted on the same shaft or on different shafts. At each stage, the fluid is directed to the center before making its way to the discharge on the outer diameter. For higher pressures at the outlet, impellers can be connected in series.