rotary cut
71Sheet film — is large format and medium format photographic film supplied on individual sheets of acetate or polyester film base rather than rolls. Sheet film was initially supplied as an alternative to glass plates. The most popular size measures 4×5 inches; …
72Core sample — Rock core samples. The product of a Diamond rig. (The bird is a Pied Butcherbird.) A core sample is a cylindrical section of (usually) a naturally occurring substance. Most core samples are obtained by drilling with special drills into the… …
73Gear cutting — is any number of methods used to manufacture precision gears.Gear hobbing is a method by which a special hobbing anto cutter and gear blank are rotated at the same time to transfer the profile of the hob onto the gear blank.Spur and other… …
74cereal processing — Introduction treatment of cereals (cereal) and other plants to prepare their starch for human food, animal feed, or industrial use. Nutrient composition of selected raw cereal grains (per 100 grams)Cereals, or grains, are members of… …
75Concrete saw — A concrete saw being readied for use. The man in the background is preparing the hose to deliver water to cool the saw, whilst the operator is moving the saw to the required position. A substantial engine powers the unit …
76Hughes Christensen — Hughes Christensen, a division of Baker Hughes Inc., is a large oil and gas drill bit company. Howard Hughes, Sr. founded the company early in the 20th century. His two cone, rolling cutter rock bit whose patent was issued by the US Patent Office …
77Diamond blade — A close up of a diamond blade, showing worn metal behind the diamonds on the blade. A diamond blade is a saw blade which has diamonds fixed on the blade s base to use the diamonds to cut hard or abrasive materials. There are many types of diamond …
78tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
79Kite — s. [ [http://www.kitelife.com/magazine/issue39/altitude39/content.php Flying High, Down Under] When the kite line broke, the kites still received tension from the very long kite line.] The anchor point of the kite line may be static or moving… …
80Wankel engine — The Wankel engine is a type of internal combustion engine which uses a rotary design to convert pressure into a rotating motion instead of using reciprocating pistons. Its four stroke cycle is generally generated in a space between the inside of… …
