Screw-key
91Action (piano) — The action of a piano is the mechanical assembly which translates the depression of the piano keys into a felt hammer striking the strings. The illustration to the right is of a circa 1907 Wessell, Nickel and Gross Upright action; the parts are… …
92Optical fiber connector — An optical fiber connector terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so that light can pass. Better connectors lose… …
93Turret lathe — Hartness 3x36 flat turret lathe with cross sliding head, equipped for bar work, 1910.[1] The turret lathe is a form of metalworking lathe that is used for repetitive production of duplicate parts, which by the nature of their cutting process are… …
94printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …
95Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
96Glossary of cue sports terms — The following is a glossary of traditional English language terms used in the three overarching cue sports disciplines: carom (or carambole) billiards referring to the various carom games played on a billiard table without pockets; pool (pocket… …
97Mechanical joint — A mechanical joint is a part of machine which are used to connect the other mechanical part or mechanism. Mechanical joints may be temporary or permanent. Most types are designed to be disassemble when required.[1] Contents 1 Types Of Mechanical… …
98Rail fastening system — Elements of a baseplate based rail fastening system 1. Screw for fixing plate to sleeper 2. Elastomeric pad supporting rail 3. Tension washer 4. Rail clamp 5. Tensioning bolt (nut not shown) 6. Baseplate …
99Chuck (engineering) — Self centering three jaw chuck and key with one jaw removed and inverted showing the teeth that engage in the scroll plate. The scroll plate is rotated within the chuck body by the key, the scroll engages the teeth on the underside of the jaws… …
100Unmanned reef lights of the Florida Keys — The unmanned reef lights of the Florida Keys were erected between 1921 and 1935. As they were marking local hazards, they did not need to be visible for as far as the reef lights that were erected during the 19th century. By the time these lights …
