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Whipsaw
A whipsaw or pitsaw was originally a type of saw used in a saw pit, and consisted of a narrow blade held rigid by a frame and called a frame saw or sash saw (see illustrations). This evolved into a straight, stiff blade without a frame, up to 14 feet long and with a handle at each end. The upper handle was called the tiller and the lower one the box, so called from its appearance and because it could be removed when the saw was taken out of one cut to be positioned in another. The whipsaw was used close to the felling site to reduce large logs to beams and planks. Sawyers either dug a large pit or constructed a sturdy platform, enabling a two-man crew to saw, one positioned below the log called the pit-man, the other standing on top called the top-man. The saw blade teeth were angled and sharpened as a rip saw so as to only cut on the downward stroke. On the return stroke, the burden of lifting the weight of the saw was shared equally by the two sawyers, thereby reducing fat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saw Pit
A saw pit or sawpit is a pit over which timber is positioned to be sawed with a long two-handled saw, usually a whipsaw, by two people, one standing above the timber and the other below. It was used for producing sawn planks from tree trunks, which could then be cut down into boards, pales, posts, etc. Many towns, villages and country estates had their own saw pits. The greatest user of sawn timber in past centuries was the shipbuilding industry. After falling, without bark, in smaller and more standardized sizes, and not intended as primary members in shipbuilding, the term 'timber' is often replaced by the term 'lumber'. Sawing A sawyer is a person who cuts ("saws") wood for a living. At one time, sawyers were important members of the rural community, because many implements, as well as buildings, were made of wood. In England, the terms used were 'bottom sawyer', for the man standing in the pit, and 'top sawyer', for the man who balanced on the log. Together, the sawyers wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saws
A saw is a tool consisting of a tough blade, wire, or chain with a hard toothed edge. It is used to cut through material, very often wood, though sometimes metal or stone. The cut is made by placing the toothed edge against the material and moving it forcefully forth and less vigorously back or continuously forward. This force may be applied by hand, or powered by steam, water, electricity or other power source. An abrasive saw has a powered circular blade designed to cut through metal or ceramic. Terminology * Abrasive saw: A saw that cuts with an abrasive disc or band, rather than a toothed blade. * Back: the edge opposite the toothed edge. * Fleam: The angle of the faces of the teeth relative to a line perpendicular to the face of the saw. * Gullet: The valley between the points of the teeth. * Heel: The end closest to the handle. * Kerf: The narrow channel left behind by the saw and (relatedly) the measure of its width. The kerf depends on several factors: the width of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frame Saw
A frame saw or sash saw is a type of saw which consists of a relatively narrow and flexible blade held under tension within a (generally wooden) rectangular frame (also called a sash or gate). They are used for cutting wood or stone. The blade is held perpendicular to the plane of the frame, so that the material being cut passes through the center of the frame. Frame saws for use with wood are rip saws operated as a hand saw or powered in a sawmill. Frame saws used for cutting stone were powered saws in stone mills. When used for different purposes, a frame saw may have other names. For converting logs into lumber, they are also called a pit-saw or whipsaw. For sawing veneer, they may simply be called a ''veneer saw''. It is unknown how early framed pit-saws came into use however there is an Italian fresco from depicting their use. A more modern development from the 18th Century is the ''open'' pit saw which resembled a large hand saw with no frame, a ''till'' for a handle at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luke Clennell03
People *Luke (given name), a masculine given name (including a list of people and characters with the name) * Luke (surname) (including a list of people and characters with the name) *Luke the Evangelist, author of the Gospel of Luke. Also known as Saint Luke. *Uncle Luke (born 1960), American rapper. Also known as Luke. * Luke (The Walking Dead), a fictional character from The Walking Dead Biblical books *Gospel of Luke, a Christian Gospel *Luke–Acts, the composite work of the Gospel of Luke and the Acts of the Apostles in the New Testament Music * ''Luke'' (album), by Steve Lukather *Luke (French band) * "LUKE", a song by Susumu Hirasawa from ''Glory Wars'' *Luke Records, a record label Organizations *''Accademia di San Luca'', (the "Academy of Saint Luke"), founded in 1577 as an association of artists in Rome *Guild of Saint Luke, a medieval artists' guild named after Saint Luke Places * Luke (Čajniče), a village in the municipality of Čajnič ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sawyer (occupation)
Sawyer is an occupational term referring to someone who saws wood, particularly using a pit saw either in a saw pit or with the log on trestles above ground or operates a sawmill. One such job is the occupation of someone who cuts lumber to length for the consumer market, a task now often done by end users or at lumber and home improvement stores. By Miranda Marquit, Main Street, thestreet.com, May 3, 2010. The term is still widely used in the industry to refer to the operator of a (or still in some limited applications, a [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rip Saw
A ripsaw (or rip saw) is a wood saw that is specially designed for making a rip cut, a cut made parallel to the direction of the wood grain. Design The cutting edge of each tooth has a flat front edge and it is angled backward by about 8°, in contrast to a crosscut saw, which has teeth angled backward by about 15°. With the "rip" tooth pattern, the edges are sharpened at right angles to the cutting plane, forming chisel-like cutting surfaces, whereas crosscut teeth are sharpened at an angle, so that each tooth has a knife-like cutting point in contact with the wood. This design keeps the saw from following grain lines, which could curve the path of the saw: by acting like a chisel, the saw can more easily cut across deviating grain lines, which is necessary if a straight cut is to be achieved. This feature enables the orthogonal cutting edge to efficiently transport wood-chips from the kerf, allowing subsequent teeth to perform a more effective cut. It is possible to see t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-man Saw
A two-man saw (known colloquially as a "misery whip") is a saw designed for use by two sawyers. While some modern chainsaws are so large that they require two persons to control, two-man crosscut saws were primarily important when human power was used. Such a saw would typically be long, and sometimes up to , with a handle at each end. In some cases, such as when felling Giant Sequoias, sawblades could be brazed together end-to-end in order to create longer saws. The technique in using a two-man saw involved a sawyer standing at each end. Together the sawyers would alternate pulling the saw through the wood. If the kerf began closing, causing the saw to bind, wedges would be inserted behind the sawblade in order to keep the kerf open. Cutting from underneath a suspended log, called "underbucking", might also have been used if binding became a big problem. Many variations on the design were used, but they mainly fell into two types. Felling saws were used to fell the tree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
