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Grindstone (video Game)
A grindstone, also known as grinding stone, is a sharpening stone used for grinding or sharpening ferrous tools, used since ancient times. Tools are sharpened by the stone's abrasive qualities that remove material from the tool through friction in order to create a fine edge. Similar to sandpaper, each stone has a different grit that will result in sharper or duller tools. In Australia, Aboriginal peoples created grinding grooves by repeated shaping of stone axes against outcrops of sandstone. History and description Grindstones have been used since ancient times, to sharpen tools made of metal. They are usually made from sandstone. Grinding grooves Aboriginal grinding grooves, or axe-grinding grooves, have been found across the Australian continent. The working edge of the hatchet or axe was sharpened by rubbing it against an abrasive stone, eventually leading to the creation of a shallow oval-shaped groove over time, The grooves vary in length from up to , and can be up t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francisco De Goya Y Lucientes - Knife Grinder - WGA10060
Francisco is the Spanish and Portuguese form of the masculine given name ''Franciscus''. Meaning of the name Francisco In Spanish, people with the name Francisco are sometimes nicknamed "Paco (name), Paco". Francis of Assisi, San Francisco de Asís was known as ''Pater Communitatis'' (father of the community) when he founded the Franciscan order, and "Paco" is a short form of ''Pater Communitatis''. In areas of Spain where Basque language, Basque is spoken, "Patxi" is the most common nickname; in the Catalan language, Catalan areas, "Cesc" (short for Francesc) is often used. In Spanish Latin America and in the Philippines, people with the name Francisco are frequently called "Pancho". "Kiko (given name), Kiko"and "Cisco" is also used as a nickname, and "Chicho" is another possibility. In Portuguese, people named Francisco are commonly nicknamed "Chico (other), Chico" (''shíco''). People with the given name * Pope Francis (1936-2025) is rendered in the Spanish, Portu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carolingian Dynasty
The Carolingian dynasty ( ; known variously as the Carlovingians, Carolingus, Carolings, Karolinger or Karlings) was a Franks, Frankish noble family named after Charles Martel and his grandson Charlemagne, descendants of the Pippinids, Arnulfing and Pippinid clans of the 7th century AD. The dynasty consolidated its power in the 8th century, eventually making the offices of mayor of the palace and ''dux et princeps Francorum'' hereditary, and becoming the ''de facto'' rulers of the Franks as the real powers behind the Merovingian throne. In 751 the Merovingian dynasty which had ruled the Franks was overthrown with the consent of the Papacy and the aristocracy, and Pepin the Short, son of Martel, was crowned King of the Franks. The Carolingian dynasty reached its peak in 800 with the crowning of Charlemagne as the first Holy Roman Emperor, Emperor of the Romans in the West in over three centuries. Nearly every monarch of France from Charlemagne's son Louis the Pious until the pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodworking
Woodworking is the skill of making items from wood, and includes cabinetry, furniture making, wood carving, joinery, carpentry, and woodturning. History Along with stone, clay and animal parts, wood was one of the first materials worked by early humans. Microwear analysis of the Mousterian stone tools used by the Neanderthals show that many were used to work wood. The development of civilization was closely tied to the development of increasingly greater degrees of skill in working these materials. Among the earlliest finds of woodworking are shaped sticks displaying notches from Kalambo Falls in southen Africa, dating to around 476,000 years ago. The Clacton spearhead from Clacton-on-Sea, England, dating to around 400,000 years ago,Allington-Jones, L., (2015) ''Archaeological Journal'', 172 (2) 273–296 The Clacton Spear – The Last One Hundred Years the Schöningen spears, from Schöningen (Germany) dating around 300,000 years ago and the Lehringen spear from no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grindstone City Historic District
Grindstone City Historic District is an industrial historic district located on M-25 in Grindstone City, Michigan. It was listed on the National Register of Historic Places in 1971. History Captain Aaron G. Peer was born in Dundas, Ontario, in 1812, and moved to Algonac, Michigan, in 1821. In 1833, Peer and his brother built a schooner and went in to the lake transport business, locating at the tip of Michigan's thumb. Peer also began a grindstone quarry at this site, and by 1850 was selling $3000 of grindstones a year. A second quarry was opened in the area, and eventually two large companies, the Lake Huron Stone Company and the Cleveland Stone Company, took over all operations in the area. By 1888, Grindstone City had a population of about 1500, and the two companies employed 200 men. Both companies rented houses to workmen and operated a company store. The grindstones were produced in a range of sizes, ranging from whetstones to three-ton stones. The companies operated un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punch (tool)
A punch is a tool used to indent or create a hole through a hard surface. They usually consist of a hard metal rod with a narrow tip at one end and a broad flat "butt" at the other. When used, the narrower end is pointed against a target surface and the broad end is struck with a hammer or mallet, causing the blunt force of the blow to be transmitted through the rod body and focused more sharply onto a small area. Typically, woodworkers use a ball-peen hammer to strike a punch. Use Punches are used to drive fasteners such as nails and dowels, making a hole, or forming an indentation or impression of the tip on a work piece. Decorative punches may also be used to create a pattern or even form an image. Pin Metal pins and similar connectors are driven in or out of holes using a pin punch. For removal, first use a starter punch to loosen the pin, then use a pin punch to finish. Center A ''center punch'' is used to mark the center of a point. It is usually used t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millstone
Millstones or mill stones are stones used in gristmills, used for triturating, crushing or, more specifically, grinding wheat or other grains. They are sometimes referred to as grindstones or grinding stones. Millstones come in pairs: a stationary base with a convex rim known as the bedstone (or nether millstone) and a concave-rimmed runner stone that rotates. The movement of the runner on top of the bedstone creates a "scissoring" action that grinds grain trapped between the stones. Millstones are constructed so that their shape and configuration help to channel ground flour to the outer edges of the mechanism for collection. The runner stone is supported by a cross-shaped metal piece ( millrind or rynd) fixed to a "mace head" topping the main shaft or spindle leading to the driving mechanism of the mill (wind, water (including tide), or other means). History The origins of an industry Often referred to as the "oldest industry", the use of the millstone is inextr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathe
A lathe () is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, deformation, facing, threading and turning, with tools that are applied to the workpiece to create an object with symmetry about that axis. Lathes are used in woodturning, metalworking, metal spinning, thermal spraying, reclamation, and glass-working. Lathes can be used to shape pottery, the best-known design being the Potter's wheel. Most suitably equipped metalworking lathes can also be used to produce most solids of revolution, plane surfaces and screw threads or helices. Ornamental lathes can produce three-dimensional solids of incredible complexity. The workpiece is usually held in place by either one or two ''centers'', at least one of which can typically be moved horizontally to accommodate varying workpiece lengths. Other work-holding methods include clamping the work about the axis of rotation using a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crank Mechanism
A crank is an arm attached at a right angle to a rotating shaft by which circular motion is imparted to or received from the shaft. When combined with a connecting rod, it can be used to convert circular motion into reciprocating motion, or vice versa. The arm may be a bent portion of the shaft, or a separate arm or disk attached to it. Attached to the end of the crank by a pivot is a rod, usually called a connecting rod (conrod). The term often refers to a human-powered crank which is used to manually turn an axle, as in a bicycle crankset or a brace and bit drill. In this case a person's arm or leg serves as the connecting rod, applying reciprocating force to the crank. There is usually a bar perpendicular to the other end of the arm, often with a freely rotatable handle or wiktionary:pedal, pedal attached. Examples Familiar examples include: Hand-powered cranks * Spinning wheel * Mechanical pencil sharpener * Fishing reel and other reels for cables, wires, ropes, etc. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treadle
A treadle (from , "to tread") is a foot-powered lever mechanism; it is operated by treading on it repeatedly. A treadle, unlike some other types of pedals, is not directly mounted on the crank (see treadle bicycle for a clear example). Most treadle machines convert reciprocating motion into rotating motion, using a mechanical linkage to indirectly connect one or two treadles to a crank. The treadle then turns the crank, which powers the machine. Other machines use treadles directly, to generate reciprocating motion. For instance, in a treadle loom, the reciprocating motion is used directly to lift and lower the harnesses or heddles; a common treadle pump uses the reciprocating motion to raise and lower pistons. Before the widespread availability of electric power, treadles were the most common way to power a range of machines. They are still widely used as a matter of preference and necessity. A human-powered machine gives the human operator close, instinctive control ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luttrell Psalter
The Luttrell Psalter (British Library, Add MS 42130) is an illuminated manuscript, illuminated psalter commissioned by Sir Geoffrey Luttrell (1276–1345), lord of the manor of Irnham in Lincolnshire, written and illustrated on parchment ''circa'' 1320–1340 in England by anonymous scribes and artists. Along with the psalms (beginning on folio 13 r.), the Luttrell Psalter contains a calendar (1 r.), canticles (259 v.), the Mass (liturgy), Mass (283 v.) and an antiphon for the dead (295 r.). The pages vary in their degree of illumination, but many are richly covered with both decorated text and marginal pictures of saints and Bible stories, and scenes of rural life. It is considered one of the richest sources for visual depictions of everyday rural life in medieval England, even though the last folio is now lost. The Psalter was acquired by the British Museum in 1929 for £31,500 from Mary Angela Noyes, wife of the poet Alfred Noyes, with the assistance of an interest-free loan fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utrecht Psalter
The Utrecht Psalter (Utrecht, Universiteitsbibliotheek, MS Bibl. Rhenotraiectinae I Nr 32.) is a ninth-century illuminated manuscript, illuminated psalter which is a key masterpiece of Carolingian art; it is probably the most valuable manuscript in the Netherlands. It is famous for its 166 lively pen illustrations, with one accompanying each psalm and the other texts in the manuscript (Chazelle, 1055). The precise purpose of these illustrations, and the extent of their dependence on earlier models, have been matters of art-historical controversy. The psalter spent the period between about 1000 to 1640 in England, where it had a profound influence on Anglo-Saxon art, giving rise to what is known as the "Utrecht style". It was copied at least three times in the Middle Ages. A complete facsimile edition of the psalter was made in 1875 (Lowe, 237), and another in 1984 (Graz). The other texts in the book include some Canticle, canticles and hymns used in the Liturgy of the Hours, offi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finch Foundry, Grindstone
The true finches are small to medium-sized passerine birds in the family Fringillidae. Finches generally have stout conical bills adapted for eating seeds and nuts and often have colourful plumage. They occupy a great range of habitats where they are usually resident and do not migrate. They have a worldwide native distribution except for Australia and the polar regions. The family Fringillidae contains more than two hundred species divided into fifty genera. It includes the canaries, siskins, redpolls, serins, grosbeaks and euphonias, as well as the morphologically divergent Hawaiian honeycreepers. Many birds in other families are also commonly called "finches". These groups include the estrildid finches (Estrildidae) of the Old World tropics and Australia; some members of the Old World bunting family (Emberizidae) and the New World sparrow family (Passerellidae); and the Darwin's finches of the Galapagos islands, now considered members of the tanager family (Thraupidae).Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
