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Post Pounder
A post pounder, post driver, post rammer, post knocker or fence driver is a tool used for driving fence posts and similar items into land surfaces. It consists of a heavy steel pipe which is closed at one end and has handles welded onto the sides. It is normally used by one person, but larger versions may require two. History An early type was developed in 1933 by the Pennsylvania Department of Transportation to aid the installation of fencing along roads and highways. Operation The open end is put over the top of the post to be driven, then the tool is lifted and dropped repeatedly onto the top of the post. The closed end strikes the top of the post, driving it into the ground. Unlike a maul it can be used easily on tall posts, such as those used for deer fencing. Because the tube guides the striking force consistently in line with the post and strikes it across its full width, a post pounder usually damages the top of the post less than a maul. It is not suitable for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Fence Post
A steel fence post, also called (depending on design or country) a T-post, a Y-post, or variants on star post, is a type of fence post or picket. They are made of steel and are sometimes manufactured using durable rail steel. They can be used to support various types of safe t post brackets, barbed or smooth wire, or wire mesh. The end view of the post creates an obvious T, Y, or other shape. The posts are driven into the ground with a manual or pneumatic post pounder. All along the post, along the spine, there are studs or nubs that prevent the steel brackets, barbed wire, smooth wire or mesh from sliding up or down the post. They are generally designated as 1.01, 1.25 or 1.33, and 1.5 (for high-fence ranches), referring to the weight in pounds per lineal foot. They are commonly painted with a white tip on top; white improves the visibility of the fence line. When driving the post with a post pounder the white top paint is a visual means to ensure the user doesn’t raise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures (as concrete Rebar, reinforcing rods), in Bridge, bridges, infrastructure, Tool, tools, Ship, ships, Train, trains, Car, cars, Bicycle, bicycles, Machine, machines, Home appliance, electrical appliances, furniture, and Weapon, weapons. Iron is always the main element in steel, but other elements are used to produce various grades of steel demonstrating altered material, mechanical, and microstructural properties. Stainless steels, for example, typically contain 18% chromium and exhibit improved corrosion and Redox, oxidation resistance versus its carbon steel counterpart. Under atmospheric pressures, steels generally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pipe (material)
Pipe(s), PIPE(S) or piping may refer to: Objects * Pipe (fluid conveyance), a hollow cylinder following certain dimension rules ** Piping, the use of pipes in industry * Smoking pipe ** Tobacco pipe * Half-pipe and quarter pipe, semi-circular ramps for performing skateboarding/snowboarding tricks * Piping (sewing), tubular ornamental fabric sewn around the edge of a garment * ''For the musical instruments'', see below Music * Pipe (instrument), a traditional perforated wind instrument * Bagpipe, a class of musical instrument, aerophones using enclosed reeds ** Pipes and drums or pipe bands, composed of musicians who play the Scottish and Irish bagpipes * Organ pipe, one of the tuned resonators that produces the main sound of a pipe organ * Pan pipes, see Pan flute, an ancient musical instrument based on the principle of the stopped pipe * Piped music, or elevator music, a type of background music * "Pipe", by Christie Front Drive from '' Christie Front Drive'', 1994 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welding
Welding is a fabrication (metal), fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperature to melting, melt the parts together and allow them to cool, causing Fusion welding, fusion. Common alternative methods include solvent welding (of thermoplastics) using chemicals to melt materials being bonded without heat, and #Solid-state welding, solid-state welding processes which bond without melting, such as pressure, cold welding, and diffusion bonding. Metal welding is distinct from lower temperature bonding techniques such as brazing and soldering, which do not melt the base metal (parent metal) and instead require flowing a filler metal to solidify their bonds. In addition to melting the base metal in welding, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be stronger than the base material. Welding also requires a form of shield to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Department Of Transportation
The Pennsylvania Department of Transportation (PennDOT) oversees transportation issues in the Pennsylvania, Commonwealth of Pennsylvania. The administrator of PennDOT is the Pennsylvania Secretary of Transportation, Michael B. Carroll. PennDOT supports nearly of state roads and highways, about 25,400 bridges, and new roadway construction with the exception of the Pennsylvania Turnpike Commission. Other modes of transportation supervised or supported by PennDOT include aviation, Railroad, rail traffic, mass transit, intrastate highway shipping traffic, motor vehicle safety and licensing, and Driver's license, driver licensing. PennDOT supports the Ports of Philadelphia, Pittsburgh, and Erie, Pennsylvania, Erie. The department's current budget is approximately $3.8 billion in federal and state funds. The state budget is supported by motor vehicle fuel taxes, which are dedicated solely to transportation-related state expenditures. In recent years, PennDOT has focused on interm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sledgehammer
A sledgehammer is a tool with a large, flat, massive, often metal head, attached to a long wooden or solid handle. The long handle is combined with a heavy head which allows the sledgehammer to pick up momentum during a swing and applying a large force compared to hammers designed to drive nails. Along with the mallet, it shares the ability to distribute force over a wide area. This is in contrast to other types of hammers, which concentrate gravity and force in a relatively small area. Etymology The word sledgehammer is derived from the Old-English "''slægan''", which, in its first sense, means "to strike violently". The English words "slag", "slay", and "slog" are cognates. Uses The handle can range from to a full long, depending on the mass of the head. The head mass is usually . Modern heavy duty sledgehammers come with heads. Sledgehammers usually require two hands and a swinging motion involving the entire torso, in contrast to smaller hammers used for driving in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural Fencing
In agriculture, fences are used to keep animals in or out of an area. They can be made from a wide variety of materials, depending on terrain, location and animals to be confined. Most agricultural fencing averages about high, and in some places, the height and construction of fences designed to hold livestock is mandated by law. A is the strip of land by a fence that is left uncultivated. It may be a hedgerow or a shelterbelt (windbreak) or a refugee for native plants. If not too narrow, it acts as a habitat corridor. History Historically throughout most of the world, domestication, domesticated livestock would roam freely and were fenced out of areas, such as gardens or fields of crops, where they were unwanted. Over time, especially where crop agriculture became dominant and population density of both humans and animals was significant, livestock owners were made to fence their animals in. The earliest fences were made of available materials, usually Rock (geology), stone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earplug
An earplug is a device that is inserted in the ear canal to protect the user's ears from loud noises, intrusion of water, foreign bodies, dust or excessive wind. Earplugs may be used as well to improve sleep quality or focus in noisy environments. Since they reduce the sound volume, earplugs may prevent hearing loss and tinnitus (ringing of the ears), in some cases. US Occupational Safety and Health Administration requires hearing conservation programs which include the provision of hearing protection devices (HPDs). But this does not mean that OSHA considers HPDs to be effective. History The first recorded mention of the use of earplugs is in the Greek tale ''Odyssey,'' wherein Odysseus's crew is warned about the Siren (mythology), Sirens that sing from an island they will sail past. Circe, their hostess, tells them of the Sirens' bewitching song that makes men drive their boats ashore and perish. She advised Odysseus to fashion earplugs for his men from beeswax so they would n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Hat
A hard hat is a type of helmet predominantly used in hazardous environments such as industrial or construction sites to protect the Human head, head from injury due to falling objects (such as tools and debris), impact with other objects, and electric shock, as well as from rain. Suspension bands inside the helmet spread the helmet's weight and the force of any impact over the top of the head. A suspension also provides space of approximately 30 mm (1.2 inches) between the helmet's shell and the wearer's head, so that if an object strikes the shell, the impact is less likely to be transmitted directly to the skull. Some helmet shells have a mid-line reinforcement ridge to improve impact resistance. The Rock-climbing equipment#Helmet, rock climbing helmet fulfills a very similar role in a different context and has a very similar design. A bump cap is a lightweight hard hat using a simplified suspension or padding and a chin strap. Bump caps are used where there is a possibi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Fence Post
A steel fence post, also called (depending on design or country) a T-post, a Y-post, or variants on star post, is a type of fence post or picket. They are made of steel and are sometimes manufactured using durable rail steel. They can be used to support various types of safe t post brackets, barbed or smooth wire, or wire mesh. The end view of the post creates an obvious T, Y, or other shape. The posts are driven into the ground with a manual or pneumatic post pounder. All along the post, along the spine, there are studs or nubs that prevent the steel brackets, barbed wire, smooth wire or mesh from sliding up or down the post. They are generally designated as 1.01, 1.25 or 1.33, and 1.5 (for high-fence ranches), referring to the weight in pounds per lineal foot. They are commonly painted with a white tip on top; white improves the visibility of the fence line. When driving the post with a post pounder the white top paint is a visual means to ensure the user doesn’t raise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farming Tools
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities. While humans started gathering grains at least 105,000 years ago, nascent farmers only began planting them around 11,500 years ago. Sheep, goats, pigs, and cattle were domesticated around 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. In the 20th century, industrial agriculture based on large-scale monocultures came to dominate agricultural output. , small farms produce about one-third of the world's food, but large farms are prevalent. The largest 1% of farms in the world are greater than and operate more than 70% of the world's farmland. Nearly 40% of agricultural land is found on farms larger than . However, five of every six farms in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
