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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
Scratcher chain, like the teeth on a hand saw, simply uses a multitude of teeth to prevent individual teeth from sinking too far in without undue pressure on the bar. Chipper chain, and all subsequent designs, incorporate a depth gauge (also known as a "raker" [1]) on each cutter link to limit depth of cut on each tooth. This has two distinct ...
Andreas Stihl designed and hand built his first chainsaw in 1926. [5] The saw was electrically powered, and weighed about 48 kg (106 lb). [6] Stihl grew slowly initially, as the chainsaws came to the market about the same time as the Great Depression; with manpower cheap, and old two-man saws proven, there was no need for power saws.
In 1929, Andreas Stihl married Mia Giersch (1903-2002), [2] with whom he had four children, among them Hans Peter Stihl (born 1932) and Eva Mayr-Stihl (born 1935), who succeeded her father in managing the company and remaining Vorstand until 2002. [9] Stihl divorced his first wife in 1960, and married Hannelore Wegener-Doberg (1927-2009) the ...
Aboriginal grinding grooves, or axe-grinding grooves, have been found across the Australian continent. [3] The working edge of the hatchet or axe was sharpened by rubbing it against an abrasive stone, eventually leading to the creation of a shallow oval -shaped groove over time, [ 4 ] The grooves vary in length from 80 mm (3.1 in) up to 500 mm ...
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Typical dimensions are on the order of approximately 100–140 mm (4–5 1 ⁄ 2 in.) in length and 3–5 mm (1 ⁄ 8 – 3 ⁄ 16 in.) in width. Best used for fine, delicate work on small pieces or mechanisms (such as escapements ), escapement files are commonly used by clock and watchmakers , as well as in crafting jewelry.
The X axis is now at angle α with respect to the x axis. The XYZ system rotates again about the x axis by β. The Z axis is now at angle β with respect to the z axis. The XYZ system rotates a third time about the z axis by γ. In sum, the three elemental rotations occur about z, x and z. Indeed, this sequence is often denoted z-x-z (or 3-1-3 ...
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