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Hart's first inversor, also known as Hart's W-frame, is based on an antiparallelogram.The addition of fixed points and a driving arm make it a 6-bar linkage. It can be used to convert rotary motion to a perfect straight line by fixing a point on one short link and driving a point on another link in a circular arc.
15–7, 1994 Synthetic grips introduced, drill and tap frame, change rear seat leaf, change extractor; 15–7, 1995 Delete square butt; 15–7, 1996 Begin shipments in blue plastic case; 15–7, 1997 4” barrel only; change to MIM thumbpiece; shipped with master trigger locks; change to MIM trigger
The simplest solutions are Hart's W-frame – which use 6-bars – and the Quadruplanar inversors – Sylvester-Kempe and Kumara-Kampling, which also use 6-bars. Sarrus linkage (1853) Peaucellier-Lipkin inversor (1864) Hart's first inversor / Hart's antiparallelogram / Hart's W-frame (1874) Hart's second inversor / Hart's A-frame (1875 ...
The rear sights are fixed; similar to those found on the small J-Framed .38 Special and .357 Magnum as well as the medium-sized K-frame service revolvers. The front sights on both the standard and Crimson Trace models feature a tritium night sight that is drift-adjustable for windage corrections. It holds six rounds in any combination.
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They are available ported and unported with a choice of 6- or 7-round cylinders. [1] The Model 686 is based on S&W's L (medium) revolver frame. During the 1980s, Smith & Wesson developed its L-Frame line of .357 Magnums: the Model 581, Model 586, Model 681 and Model 686. The Models 581 and 681 have fixed sights, whereas the 586 and 686 use ...
A page of the 1976 S&W catalog, detailing the Models 36, 37, 38, 48 and 49. In 1989, Smith & Wesson introduced the LadySmith variant of the Model 36. This was available with 2 in (51 mm) or 3 in (76 mm) barrel and blued finish. This model also featured special grips designed specifically for women, and had "LADYSMITH" engraved on the frame. [4]
In the early 1960s, Elmer Keith, Bill Jordan, and Skeeter Skelton, all noted firearms authorities and authors, lobbied Remington Arms and Smith & Wesson to introduce a new .41 caliber police cartridge with the objective of filling a perceived ballistic performance gap between the .357 and .44 Magnums, thus creating a chambering which they believed would be the ultimate for law enforcement ...