The steel blade can be resharpened as needed.Ī variant design uses a wheel-shaped blade mounted on a sliding shuttle attached to a rail. The blade on a paper cutter is made of steel, which provides long-term durability. Paper cutters are also used for cutting thin sheet metal, cardboard, and plastic. The combination of a blade mounted to a steady base produces clean and straight cuts, the likes of which would have otherwise required a ruler and razor blade to achieve on a single page. When the knife is pulled down to cut paper, the action resembles that of a pair of scissors, only instead of two knives moving against each other, one is stationary. The stationary right edge of the base is also steel, with an exposed, finely-ground edge. The other end of the knife unit is a handle. Larger versions have a strong compression coil spring as part of the attachment mechanism that pulls the knife against the stationary edge as the knife is drawn down to cut the paper. On the right-hand edge is a long, curved steel blade, often referred to as a knife, attached to the base at one corner. It is typically relatively heavy, so that it will remain steady while in use. At the very least, it must have a flat edge against which the user may line up the paper at right-angles before passing it under the blade. The surface will typically have a grid either painted or inscribed on it, often in half-inch increments, and may have a ruler across the top. Paper cutters vary in size, usually from about 30 centimetres (1 ft) in length on each side for office work to 841 millimetres (33.1 in) (an edge of A1 paper) in design workshops. Since the middle of the 19th century, considerable improvements to the paper cutter have been made by Fomm and Krause of Germany, Furnival in England, and Oswego and Seybold in the United States. Later, Milton Bradley went on to patent his own version of the paper cutter in 1879. Paper cutters were developed and patented in 1844 by French inventor Guillaume Massiquot.
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