Plane (tool)

Hand planes are ancient, originating thousands of years ago. Early planes were made from wood with a rectangular slot or mortise cut across the center of the body. The cutting blade or iron was held in place with a wooden wedge. The wedge was tapped into the mortise and adjusted with a small mallet, a piece of scrap wood or with the heel of the user's hand. Planes of this type have been found in excavations of old sites as well as drawings of woodworking from medieval Europe and Asia. The earliest known examples of the woodworking plane have been found in Pompeii, although other Roman examples have been unearthed in Britain and Germany. The Roman planes resemble modern planes in essential function, most having iron wrapping a wooden core top, bottom, front and rear, and an iron blade secured with a wedge. One example found in Cologne has a body made entirely of bronze without a wooden core. A Roman plane iron used for cutting moldings was found in Newstead, England. Histories prior to these examples are not clear, but furniture pieces and other woodwork found in Egyptian tombs show surfaces carefully smoothed with some manner of cutting edge or scraping tool. There are suggestions that the earliest planes were simply wooden blocks fastened to the soles of adzes to effect greater control of the cutting action. In the mid-1860s, Leonard Bailey began producing a line of cast iron-bodied hand planes, the patents for which were later purchased by Stanley Rule & Level, now Stanley Black & Decker. The original Bailey designs were further evolved and added to by Justus Traut and others at Stanley Rule & Level. The Bailey and Bedrock designs became the basis for most modern metal hand plane designs manufactured today. The Bailey design is still manufactured by Stanley Black & Decker. In 1918 an air-powered handheld planing tool was developed to reduce shipbuilding labor during World War I. The air-driven cutter spun at 8,000–15,000 rpm and allowed one man to do the planing work of up to fifteen men who used manual tools. Modern hand planes are made from wood, ductile iron or bronze which produces a tool that is heavier and will not rust. == Parts ==

The standard components of a modern, Western-style hand plane include: {{ordered list |type=upper-alpha == Types ==

Most planes fall within the categories (by size) of block plane, smoothing plane, and jointing plane. Specialty planes include the shoulder plane, router plane, bullnose plane, and chisel plane, among others. Electrically powered hand planers (loosely referred to as power planes) have joined the hand-held plane family. Bench planes are characterized by having their cutting bevel facing down and attached to a chipbreaker. Most metal bench planes, as well as some larger wooden ones, are designed with a rear handle known as a tote. Block planes are characterized by the absence of a chipbreaker and the cutting iron bedded with the bevel up. The block plane is a smaller tool that can be held with one hand and that excels at working across the grain on a cut end of a board (end grain). It is also good for general purpose work such as taking down a knot in the wood, smoothing small pieces, and chamfering edges. Different types of bench planes are designed to perform different tasks, the name and size of the plane being defined according to its use. Bailey iron bench planes were designated by number with respect to the length of the plane. This has carried over through the type, regardless of manufacturer. A No. 1 plane is but little more than five inches long. A typical smoothing plane (approx. nine inches) is usually a No. 4, jack planes at about fourteen inches are No. 5, an eighteen-inch fore plane will be a No. 6, and the jointer planes at twenty-two to twenty-four inches in length are No. 7 or 8, respectively. A designation, such as No. 4 indicates a plane of No. 4 length but slightly wider. A designation such as 5 indicates the length of a No. 5 but slightly wider (actually, the width of a No. 6 or a No. 7), while a designation such as 5 indicates the length of a No. 5 but slightly narrower (actually, the width of a No. 3). "Bedrock" versions of the above are simply 600 added to the base number (although no "601" was ever produced, such a plane is indeed available from specialist dealers; 602 through 608, including all the fractionals, were made). Order of use A typical order of use in flattening, truing, and smoothing a rough sawn board might be: • A scrub plane, which removes large amounts of wood quickly, is typically around long, but narrower than a smoothing plane, has an iron with a convex cutting edge and has a wider mouth opening to accommodate the ejection of thicker shavings/chips. • A jack plane or fore plane, usually between long, is also used for initial material removal, but with more accuracy and flattening capability than the scrub. • A jointer plane is between and for preparing stock for traditional hammer veneering applications. • The spill plane which creates long, spiraling wood shavings or tapers. • The spar plane, which is used for smoothing round shapes, like boat masts and chair legs. • The match plane, which is used for making tongue and groove boards. • Hollows and rounds are similar to moulding planes, but lack a specific moulding profile. Instead, they cut either a simple concave or convex shape on the face or edge of a board to create a single element of a complex-profile moulding. They are used in pairs or sets of various sizes to create moulding profile elements such as fillets, coves, bullnoses, thumbnails ovolos, ogees, etc. When making mouldings, hollows and rounds must be used together to create the several shapes of the profile. However, they may be used as a single plane to create a simple decorative cove or round-over on the edge of a board. Many of these hollows and rounds can be classified in the category of side-escapement planes. == Use ==

Planing wood along its side grain should result in thin shavings rising above the surface of the wood as the edge of the plane iron is pushed forward, leaving a smooth surface, but sometimes splintering occurs. This is largely a matter of cutting with the grain or against the grain respectively, referring to the side grain of the piece of wood being worked. The grain direction can be determined by looking at the edge or side of the work piece. Wood fibers can be seen running out to the surface that is being planed. When the fibers meet the work surface it looks like the point of an arrow that indicates the direction. With some very figured and difficult woods, the grain runs in many directions and therefore working against the grain is inevitable. In this case, a very sharp and finely-set blade is required. When planing against the grain, the wood fibers are lifted by the plane iron, resulting in a jagged finish, called tearout. Planing across the grain is sometimes called traverse or transverse planing. Planing the end grain of the board involves different techniques and frequently different planes designed for working end grain. Block planes and other bevel-up planes are often effective in planing the difficult nature of end grain. These planes are usually designed to use an iron bedded at a low angle, typically about 12 degrees. == See also ==

• Greber, Josef M. (1956, reprinted 1987) Die Geschichte des Hobels. Von der Steinheit bis zur Enstehung der Holzwerkzeugfabriken im frühen 19. Jahrhundert, Zurich, reprinted Hanover: Verlag Th. Schäfer. . • Greber, Josef M., transl. by Seth W. Burchard (1991) The History of the Woodworking Plane from the Stone Age to the Development of Woodworking Factories in the Early 19th Century. Albany, NY: Early American Industries Association. . • Hack, Garrett (1997) The Handplane Book. . • Hoadley, R. Bruce (2000) Understanding Wood: A Craftsman’s Guide to Wood Technology. . • Russell, David R., with Robert Lesage and photographs by James Austin, cataloguing assisted by Peter Hackett (2010) Antique Woodworking Tools: Their Craftsmanship from the Earliest Times to the Twentieth Century. Cambridge: John Adamson. . . • Salaman, R. A. (1989) Dictionary of Woodworking Tools. . • Todd, R., Allen, D., Alting, L., Manufacturing Processes Reference Guide, p. 124, 1994 • Watson, Aldren A. (1982) Hand Tools: Their Ways and Workings. . • Whelan, John M. (1993) The Wooden Plane: Its History, Form and Function Mendham, NJ: Astragal Press . ==External links==