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A ratchet consists of a round gear or a linear rack with teeth, and a pivoting, spring-loaded finger called a pawl (or click, in clocks and watches [1] [2]) that engages the teeth. The teeth are uniform but are usually asymmetrical, with each tooth having a moderate slope on one edge and a much steeper slope on the other edge.
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A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
A crossed helical gear is a gear that operate on non-intersecting, non-parallel axes. The term crossed helical gears has superseded the term spiral gears. There is theoretically point contact between the teeth at any instant. They have teeth of the same or different helix angles, of the same or opposite hand.
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English: diagram of the mechanism of a gun representing the trigger, the tumbler, the firing pin and the cap Français : schéma du mécanisme d'un fusil représentant la détente, la gâchette, le chien et l'amorce
CMT Music (formerly CMT Pure Country) is an American pay television channel and a sister network to CMT. It exclusively carries country music videos in an 8-hour programming wheel schedule similar to several other video-exclusive networks owned by Paramount Global.
An en bloc clip of 8×56mmR is inserted into a Steyr M95 carbine.. Several rifle designs utilize an en bloc clip for loading. With this design, both the cartridges and clip are inserted as a unit into a fixed magazine within the rifle, and the clip is usually ejected or falls from the rifle upon firing or chambering of the last round.