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The main series has always been the 1400 line, featuring the classic curved, smooth knurled bakelite handles, stainless steel walls and copper bottoms. The Patriot Ware series functioned as Revere Wares economy line, briefly being marketed directly by mail order through J.C. Penney , with an exclusive Made Expressly for Penney's by Revere ...
The idea of a hex socket screw drive was probably conceived as early as the 1860s to the 1890s, but such screws were probably not manufactured until around 1910. Rybczynski (2000) describes a flurry of patents for alternative drive types in the 1860s to the 1890s in the U.S., [2] which are confirmed to include internal-wrenching square and triangle types (that is, square and triangular sockets ...
SK Hand Tools (styled earlier as S-K, now usually SK) is a tool company located in Sycamore, Illinois, with additional manufacturing facilities in China, Taiwan, and Colorado Springs, Colorado. [1] Outlets for their products include independent tool-truck dealers, auto parts stores, and major internet vendors such as Sears and Amazon.com .
The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers , with several other models, and model improvements patented by North Bros. over a 40-year ...
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A large copper block was required in order to have sufficient thermal capacity to provide useful heat after removal from the fire, and copper is expensive. This led to the development of soldering irons that had a small copper tip attached to an inexpensive cast-iron block. [4] Some irons even had removable and replaceable copper tips. [5]