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  2. Table saw - Wikipedia

    en.wikipedia.org/wiki/Table_saw

    Anti-kickback pawls: Most modern US table saws are fitted with kickback pawls, a set of small spring-loaded metal teeth on a free-swinging pawl (usually attached to the guard) which help to put a strong downward force on a board. This can help to immobilize the board in the event of a kickback.

  3. Riving knife - Wikipedia

    en.wikipedia.org/wiki/Riving_knife

    A riving knife to the left of the blade on table saw. A riving knife is a safety device installed on a table saw, circular saw, or radial arm saw used for woodworking. Attached to the saw's arbor, it is fixed relative to the blade and moves with it as blade depth is adjusted. [1]

  4. Pawl - Wikipedia

    en.wikipedia.org/wiki/Pawl

    Dogs (in the form of pawls) are used on extension ladders to temporarily anchor their sections to one-another. [3] Table saw Pawls are used on table saws to prevent a workpiece being sawn from kicking back. [4] Transmission A parking pawl is a device in an automobile automatic transmission which prevents it from moving when the vehicle is ...

  5. Three-point hitch - Wikipedia

    en.wikipedia.org/wiki/Three-point_hitch

    Adjustable three-point ball on lift arm. Ball may be rotated to fit either Category I or Category II implements Rear three-point hitch of a Case IH tractor with implement attached by the drawbar. There are five different hitch sizes, called categories. The higher category hitches have sturdier lift arms and larger connector pins. [2]

  6. Ratchet (device) - Wikipedia

    en.wikipedia.org/wiki/Ratchet_(device)

    A ratchet featuring a gear (1) and pawl (2) mounted on a base (3) Animation of ratchet gear rack (green) and pawl (pink). Red arrows indicate which way force is applied to the gear rack. The rack and pawl are both restricted to only linear movement (not shown).

  7. Chainsaw safety features - Wikipedia

    en.wikipedia.org/wiki/Chainsaw_safety_features

    The chain has to be properly matched to the guide bar and the saw. Chainsaw manufacturers specify a selection of suitable chains for each model of saw. Best safety requires that the chain is properly sharpened. One key sharpening parameter is the depth gauge setting. The depth gauge is the small steel protubera

  8. 'David's Sling' and 'Arrow' anti-missile systems: How Israel ...

    www.aol.com/davids-sling-arrow-anti-missile...

    The Arrow 3 system is believed to have a range of 1,500 miles and can reach an altitude of 100 miles.. The Arrow 2 is designed to explode near a missile to bring down an incoming missile, but the ...

  9. Pogo pin - Wikipedia

    en.wikipedia.org/wiki/Pogo_pin

    Variety of loose pogo pins and pogo pins in 3-pin assembly holders and with Pick and Place caps Sectional drawing of a pogo pin, showing the plunger, barrel, and spring. A pogo pin or spring-loaded pin is a type of electrical connector mechanism with spring plungers that is used in many modern electronic applications and in the electronics testing industry. [1]